GUMMILAGER MIT HYDRAULISCHER DAEMPFUNG

Fluid filled damper for vehicle suspension - incorporates connection of working chamber to damping chambers

The damper unit is for the wheel suspension system of a motor vehicle. It has a fluid-filled working chamber (1) which is enclosed by an elastically deformable wall (3) which also assumes part of the springing function. The working chamber is connected to elastically edged expansion chambers (10,11,12,13) to give at least two, independent of each other, selectable frequency-dependent damping maxima. USE/ADVANTAGE - Damping mechanism which gives better damping independently of the main spring system on vehicle.

HYDRAULICALLY DAMPED ENGINE SUPPORT

Regulierbares Gummilager.

MODIFICATIONS OF HYDRAULIC DAMPERS

Engine mount with hydraulic damping

In an engine mount with hydraulic damping which has a frustoconical rubber element 1 between an inner mount core 2 and an outer holding flange 3, the rubber element 1 is provided at its upper end with a radial flange 12 which is vulcanised to the cup-shaped circumferential wall 13 of the outer holding flange 3 and, together with this wall and the frustoconical outer surface 14, defines an annular space 15 which is divided by dividing walls extending in the Y direction into two fluid-filled spaces, which are connected to one another by a flow-restricting passage 19. The flange 12 is designed in such a way that its stiffness in the X direction is greater than in the Y direction. By virtue of this fact and by virtue of the interconnected chambers, a high stiffness and a damping effect in the X direction are achieved, while the stiffness in the Y direction is low and good acoustic insulation is provided. ...

FLUESSIGKEITS- UND FEDERGEDAEMPFTE VORRICHTUNG

Flüssigkeitsgefüllter Schwingungsdämpfer

Zweikammerstützlager

Hydraulische Dämpfungsvorrichtung

ANTI-VIBRATION MOUNTINGS

... 1433772 Fluid dampers ELLIOTT BROS (LONDON) Ltd 14 Jan 1974 [16 Jan 1973] 2314/73 Heading F2S Equipment to be isolated from a vibrating structure is mounted on a fluid damped resilient mounting comprising inner and outer mounting members 1 and 2, an element 3 of resilient material secured between them, and a plurality of liquid filled chambers 6 between the sides of the members 1 and 2, each chamber being bounded at least partially by the resilient material and being in liquid communication with a further chamber 7 positioned between the ends of the members 1 and 2. Liquid transfer between the chambers due to distortion of the resilient material provides damping of relative lateral and axial movement between the members 1 and 2. The liquid is a mixture of glycol and water. Load-deflection data is given.

A HYDROELASTIC SUPPORT

A hydroelastic support has a block (3) of elastomer interconnecting first and second components (1, 2) each connectable to a respective one of the engine and the chassis of a vehicle. The support has a partition member (5, 6, 7, 8) which separates a working chamber (A) from two concentric expansion chambers (B, C). The chambers (A, B, C) contain hydraulic fluid. The partition member has a fixed part (6, 7) incorporating an outer duct (15) which enables fluid communication between cavities A and B and an axially displaceable part (9, 10) incorporating an inner duct (18) enabling fluid communication between cavities A and C. The support effects damping of mechanical vibrations in a relatively wide frequency range including the resonant frequencies of both ducts (15, 18) and the displaceable part (9, 10) effects damping of relatively high frequency acoustic vibrations. in a further embodiment (Fig. 3) working chamber A is also split into two chambers. ...

A HYDRAULICALLY DAMPED RESILIENT MOUNTING

HYDRAULICALLY DAMPED MOUNTING DEVICE

A hydraulically damped mounting device comprises an anchor part in the form of a hollow sleeve 11, and another anchor part in the form of a coaxiall rod or tube 10. The device has two chambers 14, 15 and a channel 17 extending therebetween which opens into one of the chambers 14, but having its mouth adjacent the other chamber 15 closed by a diaphragm 18 or additionally by a valve (50 figure 5, not shown). The two chambers 14, 15 which are both "working" chambers since they are both partially bonded by a resilient wall 13 are also connected by a passageway 16. The passageway may alternatively (figure 2, not shown) or additionally (figure 3, not shown) be in the rod. The sleeve may have vented gas pockets (32, 33 figures 4, 5 not shown), bounded by diaphragms.

HYDRAULICALLY DAMPED RUBBER MOUNTING

Fluid-filled vibration damping device

HYDRAULICFLEXIBLE JOINT WITH PRESSURE RELIEF CHANNEL WITH VARIABLE CROSS SECTION

ENGINE MOUNTING.

ADJUSTABLE-REGULAR, LIQUID-SEALED OSCILLATION INSULATOR

RUBBER VIBRATION ISOLATORS

HYDRAULIC SPRING HAVING A DAMPER

The hydraulic volume (4a, 4b) of a hydro spring is sealed by means of a spring element (b) which is vulcanized into an outer ring (8) and also defined by means of a compensating membrane (10). The volume (4a, 4b) is subdivided by means of a separating wall having at least one connecting channel (28) into two chambers (4a, 4b) which are completely filled with hydraulic fluid and whose volume can alternately be modified. In order to create a damper element having a low construction height, the separating wall (2b) is flat. The plane of the separating wall is oriented in an oblique position with respect to the axis of the spring. At least one flat connecting channel (28) extends inside the flat separating wall (26). Preferably, the at least one connecting channel (28) is spiral shaped. Several spiral shaped connecting channels (28) can be arranged in a mutually offset position in the separating wall (26).

VIBRATION-PREVENTING RUBBER DEVICE

This invention relates to a multiple mounting vibration-preventing device wherein a partition wall is interposed between an upper plate and a lower plate. An upper vibrationpreventing rubber member is interposed between the partition wall and the upper plate so as to define an upper damper liquid chamber therebetween. A lower vibration-preventing rubber member is interposed between the partition wall and the lower plate so as to define a lower damper liquid chamber therebetween. The upper damper liquid chamber communicates with the lower damper liquid chamber through an orifice. Either or both the upper damper liquid chamber and the lower damper liquid chamber is horizontally divided into a plurality of damper liquid subchambers by division plates extending in the vertical direction of the damper liquid chambers. Adjacent damper liquid subchambers communicate through orifices provided in the division plates.

VIBRATION AND/OR SHOCK ATTENUATING FLUID MOUNT OR THE LIKE

The mount preferably includes a decoupler assembly that causes different degrees of damping of relatively large magnitude excitation forces that result in mount compression versus mount extension, and that causes no or only minimal damping of excitation forces of relatively small amplitude. In a preferred embodiment the mount includes a generally cylindrical double-walled housing having a central portion containing at least part of a first variable volume chamber containing hydraulic fluid, and having an outer portion containing a second variable volume chamber containing gaseous fluid. The second chamber is of annular shape and encircles at least part of the first chamber. A rolling diaphragm defining a boundary of at least one of the chambers is formed of elastomeric material having a layer of reinforcing material preferably disposed at an offset location therein.

TWO-CHAMBER MOTOR MOUNT WITH HYDRAULIC DAMPING

RUBBER SUPPORT

A hydraulically dampened rubber support has a liquid filled working chamber which is in at least a first region defined by a plate of magnetizable materials supported by a spring. The plate may be reciprocated in direction of the working chamber dependent on parameters present using a magnetic system. The damping of acoustically prominent vibrations transmitted to the rubber support is improved.

Liquid-sealing anti-vibration device

According to the present invention, relief valves for preventing a cavitation phenomenon from occurring in a movable membrane are provided with both: adequate stiffness to avoid deformation during normal vibration input so as to prevent leakage; and ease of valve-opening so that deformation promptly occurs during abnormal vibration input so as to enable a large amount of leakage. The relief valves (33) are integrally provided to an elastic partition member (30) provided in a partition member (6), the leak passage (49) is opened or closed, and a cavitation phenomenon is prevented from occurring. The relief valves (33) are crescent-shaped and provided as a pair facing each other on the outer periphery of the elliptical movable membrane (31). The crescent shape of each of the relief valves (33) is formed by the inner periphery side having an elliptical arc shape and the outer periphery side having an arc shape. The valve length of each of the relief valves (33) changes in the length direction ...

DEVICE Of DAMPING AND SYSTEM OF ROTOR Of AERODYNE INCORPORATING It

La présente invention concerne un dispositif d'amortissement en particulier destiné à former un amortisseur de mode de traînée pour pale d'hélicoptère, et un système de rotor d'aérodyne incorporant ce dispositif. Ce dispositif d'amortissement (101) comporte : - un bâti (102) externe destiné à être couplé à un premier élément tournant et un élément radialement interne (105) monté coaxialement au bâti et destiné à être couplé à un second élément tournant, - au moins un amortisseur élastomère (107) de section transversale annulaire monté solidaire du bâti et de l'élément interne, et - une chambre de travail (108) délimitée par le bâti et par l'amortisseur et communiquant avec une chambre de compensation (109) délimitée par un organe souple hautement déformable (113) monté coaxialement à l'élément interne. Selon l'invention, la chambre de travail est formée en une première extrémité (104) du dispositif et communique avec la chambre de compensation par une structure poreuse (110) surmontant ...

SHIM HAS AT LEAST TWO DIRECTIONS HYDROELASTIC DAMPING

HYDROELASTIC SUPPORT IN PARTICULAR FOR the SUSPENSION Of a POWER UNIT IN the CASE Of a MOTOR VEHICLE

L'invention a pour objet un support hydroélastique du type comportant une armature inférieure (11) et une armature supérieure (12) reliées respectivement à deux ensembles à suspendre, une chambre (5) de travail et une chambre (7) d'expansion communiquant entre elles et remplies d'un liquide. La chambre de travail (5) est délimitée par deux masses (13, 23) en matériau élastomère et la chambre d'expansion est délimitée par une masse (23) en matériau élastomère, une cuvette (14) et une membrane d'expansion (30). Le support hydroélastique s'applique à la suspension d'un groupe motopropulseur dans une caisse d'un véhicule automobile.

VIBRATION DAMPENER IN PARTICULAR FOR ROTOR Of HELICOPTER

L'invention concerne un amortisseur de vibrations, notamment pour rotor d'hélicoptère, comprenant un élément menant (10) ainsi qu'un élément rigide (6), et comportant un ensemble d'amortissement reliant fonctionnellement l'élément menant 10) et l'élément rigide (6), l'ensemble d'amortissement comportant d'une part un dispositif hydraulique d'amortissement disposé dans au moins une cavité (3) de fluide visqueux et d'autre part un dispositif flexible lamifié (1). Le dispositif hydraulique d'amortissement (40, 50) présente un premier (40) et un deuxième (50) ensembles de lames planes imbriquées. Selon l'invention, le dispositif hydraulique d'amortissement comporte également au moins un élément d'amortissement qui est disposé dans une dite cavité de fluide visqueux et qui est solidaire de l'élément menant (10), ledit élément d'amortissement présentant un contour externe se rétrécissant depuis une base (23) située du côté d'une extrémité axiale de l'amortisseur jusqu'à un sommet situé du côté ...

Engine bearing with hydraulic damping

SUPPORT ELASTIQUE, NOTAMMENT POUR LA SUSPENSION D'UN MOTEUR DE VEHICULE

CE SUPPORT DE FORME GENERALE ANNULAIRE EST TRAVERSE AXIALEMENT PAR DES MOYENS DE FIXATION 4, 5. IL COMPREND UNE MASSE ELASTIQUE ANNULAIRE 1 RELIEE A DEUX ARMATURES 2, 3, UNE MEMBRANE SEMI-TORIQUE 40 FIXEE ENTRE LES DEUX ARMATURES 2, 3 ET DELIMITANT AVEC LASURFACE EXTERNE DE LA MASSE 1 UNE CHAMBRE DE TRAVAIL A. CETTE CHAMBRE COMMUNIQUE AVEC UNE CHAMBRE D'EXPANSION 8 PAR UN CANAL 61. LE SUPPORT COMPORTE EGALEMENT DES MOYENS LIMITANT SES DEBATTEMENTS AXIAUX ET RADIAUX. UN TEL SUPPORT PRESENTE UNE RAIDEUR PROPRE PARTICULIEREMENT FAIBLE TANT DANS LE SENS RADIAL QUE DANS LE SENS TRANSVERSAL, CE QUI AMELIORE LE FILTRAGE DES VIBRATIONS A HAUTE FREQUENCE TOUT EN PROCURANT UN BON AMORTISSEMENT DES TREPIDATIONS A BASSE FREQUENCE ET FORTE AMPLITUDE.

Hydro-elastic anti-vibration support for automobile engine comprises internal module and external armature connected by elastomer mass defining working chamber connected to expansion chamber containing anti-freeze fluid ensuring damping

La présente invention concerne un support anti-vibratoire constitué par un module intérieur (1) pour la solidarisation avec la partie à suspendre et une armature extérieure (2) pour la solidarisation avec le bâti, présentant un logement pour recevoir le module intérieur (1), les deux armatures étant reliées par une masse en élastomère définissant une chambre de travail (40) reliée à une chambre d'expansion (55), lesdites chambres contenant un fluide antigel assurant l'amortissement des mouvements relatifs de l'armature extérieure (2) et du module intérieur (1), caractérisé en ce que l'armature extérieure (2) présente une cloison transversale délimitant une première cavité pour recevoir le module intérieur (1) et la chambre de travail (40) formée par surmoulage, et une deuxième cavité constituant une chambre d'expansion (30), la chambre d'expansion (30) et la chambre de travail (40) étant reliées par un canal de liaison (60).

DEVICE Of ACTIVE DAMPING OF VIBRATIONS, FILLED BY a FLUID, COMPRISING an ELEMENT OF STABILIZATION BEING USED TO STABILIZE an OSCILLATING ELEMENT

Le dispositif (10) comprend deux éléments de montage distants (12, 14), un corps élastique (16) raccordant ces deux éléments et formant, avec un élément oscillant (48), une chambre (35, 82) remplie d'un fluide incompressible, un actionneur électromagnétique (46, 54, 78) faisant osciller l'élément (48) pour commander la pression du fluide dans la chambre, un élément de stabilisation (50) disposé sur un côté de l'élément (48), un premier support élastique (64) supportant l'élément (48) sur l'élément de montage (14), un second support élastique (66) supportant l'élément (50) sur le second élément (14) et une tige de raccordement (62) formant un ensemble mobile (48, 50, 62). Application notamment en tant que support de moteur d'un véhicule automobile.

ACTIVE HYDRAULIC ANTIVIBRATORY SUPPORT, AND ACTIVE ANTIVIBRATORY SYSTEM COMPRISING SUCH A SUPPORT

Support antivibratoire comportant deux armatures rigides (2, 4) reliées entre elles par un corps en élastomère (5) qui est appliqué contre une cloison rigide pour délimiter une chambre de travail hydraulique (A) reliée à une chambre de compensation (B) par un passage étranglé (C). Le liquide contenu dans la chambre de travail est en contact avec un piston (16) commandé par un actionneur électromagnétique (21) à électroaimant proportionnel.

ELASTIC SUPPORT, IN PARTICULAR FOR the SUSPENSION Of an ENGINE OF VEHICLE

MANCAL DE BORRACHA COM AMORTECIMENTO HIDRAULICO

Suporte antivibratório hidráulico

LIQUID-SEALED ANTIVIBRATION DEVICE

A relief valve having a structure where a cavitation phenomenon is prevented is simply and reliably operated. A thin center section (31) and a stationary section (32) are provided on an elastic diaphragm (30) placed inside a partition member (6), the stationary section (32) is fixed in position, and a relief valve (33) is formed integrally with the outer periphery of the stationary section (32). The relief valve (33) has a slope surface (34) on the auxiliary liquid chamber (7) side and also has a depression section (35) opened to the main liquid chamber (5) side. The rigidity of the relief valve (33) varies in the circumferential direction. When the pressure inside the main liquid chamber (5) is negative, operation liquid in the auxiliary liquid chamber (7) opens the relief valve (33) to leak it to the main liquid chamber (5), preventing occurrence of a cavitation phenomenon. Since the relief valve (33) is integrally formed with the elastic diaphragm (30), the relief valve for cavitation ...

VIBRATION ISOLATOR

A vibration isolator in which a restrictive passage for communicating a main liquid chamber and an auxiliary liquid chamber is switched in a short time to either a first restrictive passage or a second restrictive passage according to a variation in a vibration frequency, and whose size is efficiently reduced. In the vibration isolator, when a plunger member (78) is moved by liquid pressure in a pressurized space (130) to a close position against urging force of a coil spring (90), the plunger member (78) closes an orifice opening (74), and when the plunger member (78) is returned to an open position by urging force of the coil spring (90), the plunger member (78) opens the orifice opening (74). Because the orifice opening (74) is formed such that the longitudinal opening width (L) in the axial direction of the isolator is greater than the lateral opening width (W) in the circumferential direction of the isolator, the area of the opening required for the orifice opening (74) is sufficiently ...

VIBRATION DAMPER

A vibration damper (10) enabling the simplification of a piping structure for connecting a negative pressure chamber in which a membrane is used as a partition wall and a chamber of a valve mechanism for opening and closing a second restriction passage to a drive pressure supply source and the simplification of an operation for connecting the negative pressure chamber and the chamber of the valve mechanism to the drive pressure supply source. The inner pipeline (63) of a communication pipe (62) disposed on the inner peripheral side of an outer tube member (20) allows the negative pressure chamber (60) to communicate with the chamber (102). A pipe connection part (106) and a supply/discharge pipe (110) allows the chamber (102) to communicate with the supply/discharge port (114) of a selector valve (112) on the outside of the damper. The selector valve (112) allows the supply/discharge port (114) to selectively communicate with either of an intake manifold (130) as the negative pressure supply ...

Vibration-isolating device

A vibration-isolating device equipped with a vibration-isolating substrate comprising a rubber elastomer interposed between a first attachment metal fitting and a cylindrical main metal fitting, stopper metal fittings to restrain excessive deformation, which is capable of effectively making use of limited installation space as well as easy and proper assembling of the stopper metal fittings. A body portion comprising the vibration-isolating substrate, a stopper portion provided on the first attachment metal fitting and the annular stopper metal fitting is constructed to be an elongated circle or ellipse in cross-section. Furthermore, caulking to the flange portion at the upper end of the stopper metal fitting is done only on both ends (left and right ends shown in the figures) in the direction of the major axis of the elongated circle or the ellipse. Especially, the outer edges of the caulking portion and corresponding outer edge of the flange portion are disposed along the circumference ...

Hydraulic vibration-damping support

A hydraulic vibration-damping support comprising two strength members interconnected by an elastomer body defining in part a working chamber filled with liquid, said working chamber communicating via a constricted passage with a compensation chamber separated from said working chamber by a rigid partition. The rigid partition is provided with two gratings between which a decoupling valve member is mounted with clearance, which decoupling valve member is provided with studs disposed so that said decoupling valve member has a midplane disposed on a slant relative to the gratings.

ELASTICALLY YIELDABLE SUPPORT IN PARTICULAR FOR THE SUSPENSION OF A VEHICLEENGINE

Fluid-filled vibration damping device and method of producing the same

A fluid-filled vibration damping device includes a first mounting member and a cup-shaped second mounting member elastically connected by an elastic body such that an opening of the second mounting member fluid-tightly closed by the elastic body. An outer metal sleeve having an outward flange portion at its upper end is bonded by vulcanization to an outer circumferential surface of the elastic body, and a cylindrical orifice member is fitted onto the outer metal sleeve with an upper end face superposed on the outward flange portion. The outer metal sleeve and the orifice member are fitted into the cylindrical wall portion of the second mounting member. An outer metallic ring bonded by vulcanization to an outer periphery of the elastic rubber layer is superposed on an axially upper surface of the outward flange portion portion, and firmly fitted into an open end portion of the cylindrical wall portion of the second mounting member.

Rubber vibration isolators

Fluid-filled damper device

A damper device including first and second support members, one of which is fixed to a support element and the other of which is fixed to a suspended element, an elastic block made of a deformable, elastic material for elastically coupling the two support members and a sealed space formed therein filled with a liquid. One partition member has its periphery fixed to the first support member and divides the sealed space into two chambers. The partition member has therein a member movable along a short distance. Fluid passages are formed in a wall portion of the first support member so as to communicate between the two chambers and to impart flow resistance to the liquid flowing therethrough. The partition member can be suspended to the first support member by an elastic sheet and be movable along the axial direction of the first support member. A solenoid is mounted on the inner wall of the first support member. When the solenoid is energized, the partition member can be fixed to the first ...

VIBRATION-DAMPING DEVICE

A thinned thickness portion 54 is formed to each of separating walls 42 that configure two second main liquid chambers 40 along an axis-orthogonal direction. The thinned thickness portions 54 extend from the thickness direction center of the separating walls 42 to the first main liquid chamber 28, such that the two sides of the thinned thickness portions are configured by thin walled portions 42U. The kinetic spring constants of the vibration isolation device are lowered in both the axial direction and the axis-orthogonal direction due to "pressure release" occurring.

VIBRATION DAMPING DEVICE

OPTICAL DISC PLAYER

An optical disc player in accordance with this invention has a construction in which a chassis to which an optical pickup, a disc table, and the like, are fitted, is supported on a frame at a plurality of positions by resilient support means, a container portion sealing therein a viscous fluid is disposed or either the frame or the chassis, and a migration member disposed on the other of the frame and the chassis is placed in the viscous fluid. According to this construction, the rise of the Q value in the resonance range is small resulting in improved vibration resistance, and the variation of sound is difficult to occur.

Sleeve type rubber spring

Rubber spring bush The rubber spring bush, mainly loaded in one direction, comprises two parallel supporting sleeves with a rubber body between them. These are held apart by two or more radial ribs, one at least of which is inclined to the incoming force. The ribs (4,5) are so dimensioned and spaced apart in the peripheral direction that the resultant of the loads (T5,T5) transmitted by them is inclined to the direction of the incoming force.

Engine mount

VIBROPREVENTIVE ELEMENT WITH LIQUID ENCAPSULATED

PURPOSE: To make even the level of the loss factor peak value of an orifice by furnishing each of orifices with a diaphragm chamber and by setting the diaphragm expansion elasticity with a higher value for a one having a higher loss factor peak frequency of orifice. CONSTITUTION: Each of orifices 12, 13 at a vibro-suppressing element of liquid encapsulated type 1 is equipped with an individual diaphragm chamber 10, 11. The peak frequency of loss factor is et great for the orifice 12 and small for one 13, and the wall thickness of diaphragm is variable so that the expansion elasticity of diaphragm 8 is higher than that of diaphragm 9. This enables to make even the loss factor peak values of the orifices. COPYRIGHT: (C)1987,JPO&Japio ...

車両キャブサスペンションマウントの構造物

... 第1の車両本体の構造体と第2の車両本体の構造体とを接続するための車両サスペンションマウントであって、マウントは第1の外側コンテナ部材と、第2の外側キャップ部材とを備え、第2の外側キャップ部材は非エラストマー中心軸シャフトと外側エラストマーキャップとを有し、外側エラストマーキャップは第1の外側コンテナ部材に対して半径方向外側に取り付けられ、非エラストマー中心軸シャフトは、シャフト軸に沿って第1の外側コンテナ部材の内側に長手方向に延び、非エラストマー中心シャフトは外側エラストマーキャップから遠位にある端部を有する。第1の外側コンテナ部材および第2の外側キャップ部材はサスペンションマウントダンピング液体を含有し、サスペンションマウントダンピング液体ダンパポンプ部材は端部に近接して非エラストマー中心シャフトに固定され、内部エラストマー軸受支持アセンブリは第1の外側コンテナ部材に配置される。 【選択図】図1A ...

ANTI-VIBRATION STRUCTURE OF DAMPER AND MECHANICAL CHASSIS

PROBLEM TO BE SOLVED: To provide an anti-vibration structure of a damper and its chassis capable of responding to thinning of a reproducer of a disk-like storage medium such as a CD-ROM in the lateral (thickness) direction, producing a high vibration damping effect even when the reproducer is used in any of vertical and lateral installation states, and increasing the designing flexibility of a casing. SOLUTION: The anti-vibration structure comprises a flexible part 12 made of a rubber-like elastic body such as thermoplastic elastomer in the damper 10, and mounting recessed parts 12a and 13c that lie in a lid part 13 having an inner periphery 13b made of the rubber-like elastic body and receive and hold an insert of each shaft body for mounting faced to the casing 2 of the reproducer 1. Therefore, the damper 10 allows thinning of the reproducer because the lid part 13 is not required to be mounted to and along a side plate and the bottom plate of the casing, increasing of the degree of designing ...

VIBRATION PROOF SUPPORTING DEVICE

PROBLEM TO BE SOLVED: To provide a vibration proof supporting device causing no adverse effect on the durability of a supporting elastic body even if the head of a connecting bolt secured to a connecting member faces the supporting elastic body. SOLUTION: The outer periphery surface of a supporting elastic body 32 spaced apart from a connecting bolt 30a covers the outer periphery part of an engine side connecting member 30. The supporting elastic body approaching the connecting bolt is formed with a covering part 32b for covering the entire region of the connecting bolt 30a at its head 30d. The outer periphery at the lower position of the head forms a recessed outer periphery part 32c considerably recessed toward the inside. The inner surface of the supporting elastic body 32 facing the recessed outer periphery part 32c while forming a cavity part 32a forms a bulged inner periphery part 32d considerably bulged toward the inside. Providing the bulged inner periphery part 32d by facing the ...

VIBRATION ABSORBING DEVICE

PROBLEM TO BE SOLVED: To provide a vibration absorbing device having a smaller number of components while simplifying the manufacturing processes of a diaphragm and improving the productivity. SOLUTION: The vibration absorbing device includes a cylinder member 3 connected to one of a vibration generating part and a vibration receiving part, a mounting member 2 connected to the other, a rubber elastic body 4 for elastically connecting the cylinder member 3 to the mounting member 2 and closing one opening end of the cylinder member 3, the diaphragm 5 for closing the other opening end of the cylinder member 3, a partition member 7 for partitioning a liquid chamber 6 formed inside the cylinder member 3 and filled with liquid into a main liquid chamber 6A whose partition wall is partially formed by the rubber elastic body 4 and whose internal capacity is changed with the deformation of the rubber elastic body 4 and a sub liquid chamber 6B whose partition wall is partially formed by the diaphragm ...

FLUID-FILLED VIBRATION CONTROL DEVICE

PROBLEM TO BE SOLVED: To improve workability in assembling an outer cylinder fitting onto an intermediate fitting side and to improve sealing performance between the outer cylinder fitting and the intermediate cylinder fitting in a fluid-filled vibration control device. SOLUTION: This fluid-filled vibration control device is provided with an inner cylinder fitting 10; a pair of ring parts 21a and 21b disposed at both axial ends with a space outside of the inner cylinder fitting 10; the cylindrical intermediate fitting 20 having a connecting part 22 integrally connecting the ring parts and forming an aperture part 25 in between; a rubber elastic body 30 connecting the intermediate fitting and inner cylinder fitting and having a recessed part 33 corresponding to the aperture part; and an outer cylinder fitting 50 on the outer peripheral side. The outer diameter of the ring part 21a on the press-in tip side of the intermediate fitting is made slightly larger than the inner diameter of the ...

SEALING STRUCTURE IN FLUID SEALED SYSTEM VIBRATION CONTROL SUPPORT BODY

PURPOSE: To provide a sealing structure in a fluid sealed system vibration control support body by which excellent sealing performance can be secured in spite of a change in internal pressure of a fluid chamber. CONSTITUTION: In a first member 14 and a second member to define at least a part of a fluid chamber, plural crest parts 74 and 76 projecting in a prescribed height are integrally formed in rubber sealing parts 72 arranged on an installing surface of the first member 14 to the second member in a condition of being arranged in the direction for separating from the fluid chamber, and are constituted so that a projecting height of the plural crest parts 74 and 76 become gradually high as they separate from the fluid chamber, and are constituted so that an inclination on the fluid chamber side of the respective crest parts 74 and 76 becomes larger than an inclination on the opposite side of them. COPYRIGHT: (C)1996,JPO ...

LIQUID-SEALED VIBRATION DAMPER

PROBLEM TO BE SOLVED: To provide a vibration damper hardly allowing foreign matter to enter between an elastic membrane member and a cover member covering the elastic membrane member in the liquid-sealed vibration damper having the elastic membrane member absorbing the volumetric change of a liquid chamber. SOLUTION: A plurality of projections are formed on the upper surface outer peripheral part of a diaphragm 32. With the cover member 36 installed to cover the upper side of the diaphragm 32, the projections abut on the cover member 36 and clearances are formed at areas where the projections are absent. The clearances form communication passages 39 for communicating a space part 38 formed between the diaphragm 32 and the cover member 36 near the axis of the vibration damper 1 to the outside. A swelled part swelling to the radial outer side is formed at the outer peripheral end of the diaphragm 32, and the hook parts 36a, 36a, ... formed at the outer peripheral end of the cover member 36 ...

VIBRATION ISOLATING DEVICE OF LIQUID ENCLOSED TYPE

PURPOSE: To reduce the dynamic spring constant over the whole vibratory frequency ranges by furnishing a flexible partitioning plate equipped with a communication hole to put the main liquid chamber in communication with the aux. liquid chamber, and providing a throttling communication path which put the main liquid chamber in communication with the aux. liquid chamber. CONSTITUTION: The part 31b to be joined of a main body rubber piece 31 is joined with the joining part 32a of a partition frame 32, and a main liquid chamber 40 is formed between the main body rubber piece 31 and a flexible partitioning plate 34. An aux. liquid chamber 41 is formed between the partition frame 32 and flexible partitioning plate 34. An orifice 43 to put the main liquid chamber 40 in communication with the aux. liquid chamber 41 is formed from the outer side face of the frame 32 and a metal fixture 33a. According to this configuration in which a communication hole 34a is provided in flexible partitioning plate ...

FLUID SEALED TYPE VIBRATION ISOLATING MOUNT

PROBLEM TO BE SOLVED: To provide a fluid sealed type vibration isolating mount, securing the basic performance to enough efficiently exhibit pressure variation in a pressure receiving chamber, advantageously securing the axial spring rigidity to stably support an object member to be vibration-isolated, and advantageously obtaining the effect based on right-angled intended low spring characteristic by setting the right-angled spring characteristic to be soft. SOLUTION: In a position deviated from the elastic center axis of a rubber elastic body 16, a first bore hole 58 opened in an inner surface facing to a pressure receiving chamber 36 and a second bore hole 62 opened in an outer surface exposed to the outside are respectively provided extending in the substantially axial direction. The first bore hole 58 and the second bore hole 62 are positioned opposite to each other at a space in the right-angled direction, with such a depth that one bottom 60 (64) is extended in the axial direction ...

多段式の切り換え可能な慣性トラック組立体本出願は、その開示内容を参考として引用し明示的に本明細書に含めるものとする、2008年2月21日付けにて出願した、米国仮特許出願第61/030,360号による優先権を主張するものである。

... エンジン又は流体圧マウント内にて2つの真空作動式のスイッチ機構が提供される。第一及び第二のポートは、慣性トラック組立体の周縁部分に沿って提供される。切り離し器又は真空ダイヤフラムは、第一のポートを通じて真空圧に選択的に露出される。真空圧の影響の下、切り離し器は、最早、揺動することはできない。真空圧が切り離し器にのみ加えられ、アイドルダイヤフラムには加えられないとき、流体は、低振動数慣性トラックを通じて強制的に供給され、該慣性トラックは、高レベルの減衰作用及び低振動数を形成する。真空圧が切り離し器及びアイドルダイヤフラムにも加えられたとき、高振動数慣性トラックは開き且つ流体が貫通して流れるようにする。このことは、高振動数ダイナミックレートディップを形成する。これと代替的に、切り離し器又はアイドルダイヤフラムの何れにも真空圧が加えられない場合、切り離し器は、自由に揺動することが許容され、小さい入力変位のための切り離した状態を形成する。大きい入力変位の結果、流体は、低振動数慣性トラックを通じて強制的に供給される。 【選択図】図3 ...

FLUID SEALED TYPE VIBRATION CONTROL SYSTEM

PROBLEM TO BE SOLVED: To stably execute a desired vibration control effect in any state where atmospheric pressure is applied to an operation air chamber and a negative pressure is applied, by constructing a part of a wall portion with a rubber elastic film and forming a closed air chamber isolated from an opening of an air passage. SOLUTION: When a negative pressure is applied to an operation air chamber, the pressure in the operation air chamber is decreased below a certain value against an elastic force of a rubber elastic film or the like, so that the rubber elastic film is kept abutting on the facing inner surface of the operation air chamber, and a closed air chamber isolated from an air passage is formed on the opposite side of a sub liquid chamber sandwiching the rubber elastic film. Thus, wall spring rigidity of the sub liquid chamber is advantageously kept to a substantial constant value. Therefore, change of a tuning characteristic of a first orifice passage caused by the change ...

VIBRATION CONTROL DEVICE

PROBLEM TO BE SOLVED: To provide a vibration control device having a high vibration control characteristic and sufficiently reducing vibration. SOLUTION: The lower side space of an elastic body 16 constitutes a main liquid chamber 26 by being blocked up by an outer cylindrical metal fitting 12, and a space partitioned by diaphragms 22 and an elastic body 16 constitutes a pair of sub-liquid chambers 28 by being respectively blocked up by the outer cylindrical metal fitting 12. A pair of orifices 30 respectively communicate the main liquid chamber 26 with a pair of sub-liquid chambers 28. A pair of diaphragms 22 for elastically deformably constituting a wall part of the sub- liquid chambers 28 are integrally formed with the elastic body 16 so as to be respectively protruded on the pair of sub-liquid chamber 28 side to respectively connect one end sides of the diaphragms 22 to a part on the side of an inner cylindrical metal fitting 14 of the elastic body 16. COPYRIGHT: (C)2001,JPO ...

VIBRATION CONTROL DEVICE

PROBLEM TO BE SOLVED: To provide a vibration control device capable of reducing vibration of an engine mount without complicating a structure or increasing cost. SOLUTION: The vibration control device includes a core member 1 and an outer cylinder member 2. The outer peripheral surface of the core member 1 and the inner peripheral surface of the outer cylinder member 2 are connected in a liquid tight manner over the whole periphery by an elastic member 3, and the side, opposite to the core member 1, of the outer cylinder member 2 is sealed in a liquid tight manner by a diaphragm 4. A space surrounded by the diaphragm 4 and the elastic member 3 is formed as a fluid chamber filled with liquid, and the fluid chamber is partitioned into a main liquid chamber 6 located on the core member side, and an auxiliary liquid chamber 7 located on the diaphragm side by a partition member 5. Both liquid chambers are allowed to communicate with each other by a limiting passage 8 that brings about damping ...

VIBRATION INSULATING DEVICE

Vibration damping apparatus

Fluid filled vibration damping device and method of producing the same

Hydraulically damped mounting device

VIBRATING INSULATING DEVICE

SHOCK-MOUNT, IN PARTICULAR FOR HELICOPTER ROTOR

HYDRAULICFLEXIBLE CAMP FOR THE DRIVE UNIT IN A MOTOR VEHICLE

SHOCK-MOUNT, IN PARTICULAR FOR A HELICOPTER ROTOR ARM

RUBBER MOUNT.

VIBRATION PREVENTING DEVICE

This invention relates to multiple mounting vibrationpreventing device wherein a partition wall is interposed between an upper plate and a lower plate. An upper vibration-preventing rubber member is interposed between the partition wall and the upper plate so as to define an upper damper liquid chamber therebetween. A lower vibration-preventing rubber member is interposed between the partition wall and the lower plate so as to define a lower damper liquid chamber therebetween. The upper damper liquid chamber communicates with the lower damper liquid chamber through an orifice. An upper elastic film, disposed inside the upper vibration-preventing rubber member, has a portion spliced to the partition wall and its outer end part caulked to the upper plate. The upper damper liquid chamber is defined by the upper vibration-preventing rubber member and the upper elastic film. A lower elastic film, disposed inside the lower vibration-preventing rubber member, has a portion spliced to the partition ...

VIBRATION-PREVENTING RUBBER DEVICE

APPARATUS FOR IMPROVED VIBRATION ISOLATION

A vibration isolator having an upper housing defining an upper fluid chamber, a lower housing defining a lower fluid chamber, a piston resiliently disposed within the upper housing and the lower housing, a tuning passage defined by the piston, for providing fluid communication between the upper fluid chamber and the lower fluid chamber, a tuning fluid disposed within the tuning passage, the upper fluid chamber, and the lower fluid chamber. A reservoir in fluid communication with the upper fluid chamber for providing pressurization control of the vibration isolator. An expanded accumulator region for providing Increased pressure retention during maintenance and operation of the vibration isolator.

HYDROELASTIC SUPPORT IN PARTICULAR FOR the SUSPENSION Of a POWER UNIT IN the CASE Of a MOTOR VEHICLE

CUSHIONING DEVICE OF VIBRATIONS PRESENTING A GREAT DURABILITY OF THE CORPSELASTIQUE

HYDROELASTIC MEDIUM, IN PARTICULAR FOR THE SUSPENSION OF A VEHICLE ENGINE

VISCOUS DAMPER SPRING

HYDRAULIC ANTIVIBRATORY SUPPORT AND SUBSET OF MOTOR VEHICLE COMPRISING SUCH A SUPPORT

ACTIVE HYDRAULIC ANTIVIBRATORY SUPPORT, AND ANTIVIBRATORY SYSTEM ACTIFCOMPORTANT SUCH A SUPPORT

VIBRATION DAMPENER IN PARTICULAR FOR ROTOR Of HELICOPTER

Improvements to hydraulic anti-vibration supports.

Shock absorber for vehicle engine mounting - has resilient elastomeric block with differential cavities to absorb high and low frequency vibrations

Support hydroelastique, notamment pour assurer la suspension d'un moteur dans un vehicule

Ce support est concu de facon a presenter une caracteristique d'amortissement plus large. A cet effet, il comporte deux chambres d'expansion B, C reliees a une meme chambre de travail A par des conduits 16, 17 de caracteristiques differentes, de sorte que la mise en resonance du liquide contenu dans ces conduits se produit a des frequences differentes.

HYDROELASTIC SUPPORT FOR a POWER UNIT Of a VEHICULEAUTOMOBILE

HYDROELASTIC SUPPORT, IN PARTICULAR TO ENSURE the SUSPENSION Of an ENGINE IN a VEHICLE

ELASTIC BEARING HAS HYDRAULIC DAMPING

HYDRAULIC CUSHIONING DEVICE

Liquid-sealed vibration isolator

Disclosed is a liquid-sealed vibration isolator ( 10 ) provided with a main liquid chamber ( 42 ), a portion of the chamber wall of which is formed from a vibration isolating base ( 16 ), a subsidiary liquid chamber ( 44 ), a portion of the chamber wall of which is formed from a first diaphragm ( 38 ), and a first orifice flow path ( 50 ) which connects both liquid chambers, wherein a high-frequency second orifice flow path ( 54 ) which connects the main liquid chamber ( 42 ) and the subsidiary liquid chamber ( 44 ) is formed on a partitioning body ( 40 ), and a second diaphragm ( 60 ) is provided on the opening ( 59 A) of the second orifice flow path ( 54 ) on the side of the main liquid chamber. The outer peripheral portion ( 60 A) of the second diaphragm is held by the partitioning body ( 40 ) in a liquid-tight manner, and the second diaphragm ( 60 ) abuts the peripheral edge portion of the opening ( 54 A) so as to block said opening with a flexible membrane section ( 60 B) which is provided on the inside of the second diaphragm ( 60 ). Moreover, a through hole ( 74 ) is disposed on the flexible membrane section ( 60 B) at a position which does not overlap the opening ( 54 A).

Antivibration device

In an antivibration device ( 1 ), a partition plate ( 45 ) includes a main partition plate ( 46 ) made of an elastic material interposed between a protruding portion ( 60 ) and a support portion ( 54 ), and a reinforcement member ( 47 ) which is buried in the main partition plate ( 46 ) and is configured of a hard body that is harder than the main partition plate ( 46 ). The main partition plate ( 46 ) divides a main liquid chamber ( 9 A) and a sub-liquid chamber ( 9 B), and blocks the opening end of the hard member ( 50 ). A space surrounded by the hard member ( 50 ) and the main partition plate ( 46 ) constitutes a restriction passage ( 10 ). In the main partition plate ( 46 ), a communication portion ( 42 ) that penetrates therethrough in an axial direction and causes the main liquid chamber ( 9 A) and the restriction passage ( 10 ) to communicate is formed. The reinforcement member ( 47 ) is disposed to surround the peripheral edge of the communication portion ( 42 ) in the main partition plate ( 46 ).

ENGINE MOUNT FOR A MOTOR VEHICLE

A switchable mount includes a partition wall which partitions a working chamber from a compensating chamber. A first diaphragm is arranged in the partition wall so as to be deflectable in the longitudinal direction of the mount. A switching actuator controls the diaphragm and, in a first state thereof, the diaphragm is fixed in a rest position and, in a second state thereof, the diaphragm is released to move in the longitudinal direction of the mount. A second diaphragm is arranged in the partition wall and is deflected in the longitudinal direction of the mount to influence the volume of the working chamber. An air chamber is arranged between the first diaphragm and the second diaphragm. In the first state of the actuator, the air chamber is closed off air-tight to the atmosphere and, in the second current-conducting state of the actuator, is connected to the atmosphere. 1. A switchable , hydraulic damping mount defining a first longitudinal direction comprising:a working chamber defining a first volume and configured to be filled with a hydraulic fluid;a channel;an compensation chamber defining a second volume configured to be connected to said working chamber via said channel;a partition wall configured to separate said working chamber from said compensation chamber;a first diaphragm arranged in said partition wall in such a manner so as to be deflectable in the first longitudinal direction;a switching actuator configured to control said first diaphragm and having a first state in which said first diaphragm is fixed in a rest position and a second state in which said first diaphragm is released for a movement in the first longitudinal direction;a second diaphragm arranged in said partition wall and configured to be deflectable and influence said first volume of said working chamber; and,an air chamber arranged between said first diaphragm and said second diaphragm and configured to be closed to the atmosphere when said switching actuator is in said first state ...

Hydraulic mount for vehicle

Disclosed herein is a hydraulic mount for a vehicle, wherein a serpentine wall that protrudes from a bottom surface of a membrane wherein the membrane operates as a bottom surface of the upper chamber, is bonded to an orifice lower plate and separates a central chamber and a serpentine inertia track. Furthermore, the serpentine inertia track is disposed along a circumference of the central chamber. The hydraulic mount additionally includes a plurality of orifice apertures that are formed in the orifice lower plate and configured to allow communication between the central chamber and the lower chamber.

LIQUID SEALED VIBRATION ISOLATING DEVICE

A partition member for partitioning a primary liquid chamber and a secondary liquid chamber is provided with a damping orifice and an elastic partition member. A leg portion integrally projects from a lower surface of the movable diaphragm so as to be pressed vertically against a stopper surface formed on an upper surface of the bottom portion of a frame member. A third liquid chamber is defined between an outer circumferential portion of the leg portion and the support wall. When a bottom surface of the leg portion is pressed against the stopper surface, the third liquid chamber is sealed to confine a hydraulic fluid thereby increasing the internal pressure. When the leg portion is brought out of contact with the stopper surface, the third liquid chamber is opened to the secondary liquid chamber, thereby allowing the hydraulic fluid to flow out of the third liquid chamber. 1. A liquid sealed vibration isolating device comprising a first mounting means being mounted on the vibration source side , a second mounting means being mounted on the vibration transmission side , an elastic main body being provided between the first and second mounting members , a liquid chamber forming a portion of its wall with the elastic main body , a partition member for partitioning the liquid chamber into a primary liquid chamber and a secondary liquid chamber , a damping orifice communicating between the primary liquid chamber and the secondary liquid chamber and producing a first resonance by a predetermined low frequency vibration , a movable diaphragm being provided on at least a portion of the partition member and elastically deformable to absorb a change in internal pressure of the primary liquid chamber , and a leg portion integrally projecting from an outer circumferential portion on the secondary liquid chamber side of the movable diaphragm and being pressed against a pressed portion formed on a portion of a frame member which is provided for fixing a circumference of the ...

ENGINE MOUNT FOR VEHICLE

An engine mount for a vehicle may include a support bracket including a mounting hole formed in one end portion thereof, an engine-mounting plate provided at an opposite end portion thereof to be connected to an engine, and a coupling portion protruding from an external surface of the one end portion thereof; a fluid-filled assembly including a hook cup configured to be inserted into the mounting hole in the support bracket; and a rubber assembly configured to be mounted to a vehicle body, wherein, in a state in which the fluid-filled assembly is inserted into the mounting hole in the support bracket, the fluid-filled assembly is stacked on a top surface of the rubber assembly, and a housing of the rubber assembly is coupled to the coupling portion of the support bracket. 1. An engine mount for a vehicle comprising: a mounting hole formed in an end portion of the support bracket;', 'an engine-mounting plate provided at an opposite end portion of support bracket to be connected to an engine; and, 'a support bracket includinga coupling portion protruding from an external surface of the engine-mounting plate;a fluid-filled assembly including a hook cup inserted into the mounting hole of the support bracket; anda rubber assembly mounted to a vehicle body,wherein, in a state in which the fluid-filled assembly is inserted into the mounting hole in the support bracket, the fluid-filled assembly is stacked on a top surface of the rubber assembly, and a housing of the rubber assembly is coupled to the coupling portion of the support bracket.2. The engine mount of claim 1 ,wherein the support bracket includes a locking recess formed in a lower end portion of the mounting hole along an internal circumferential surface of the mounting hole, andwherein the hook cup includes a plurality of external hooks integrally formed at a lower end portion of the hook cup to be fitted into the locking recess.3. The engine mount of claim 1 , wherein the mounting hole is formed to have a draft ...

Vibration isolator

A vibration isolator of the present invention includes a first attachment member ( 11 ), a second attachment member ( 12 ), an elastic body ( 13 ), a partition member ( 15 ), and a movable member ( 23 ). In addition, a plurality of communicating holes ( 27 a and 27 b ) extending outward in an axial direction from a portion facing the movable member ( 23 ) in the axial direction in a wall surface of an accommodating chamber ( 18 ) and configured to communicate the accommodating chamber ( 18 ) with a main liquid chamber ( 16 a ) or a subsidiary liquid chamber ( 16 b ) are provided in the partition member ( 15 ), at least one of the plurality of communicating holes ( 27 a and 27 b ) is a direct coupling hole ( 27 a ) configured to directly couple the accommodating chamber ( 18 ) with the main liquid chamber ( 16 a ) or the subsidiary liquid chamber ( 16 b ) in the axial direction, a flow control member ( 30 ) positioned at an outside in the axial direction relative to the direct coupling hole ( 27 a ) and disposed to overlap the movable member ( 23 ) in the axial direction through the direct coupling hole ( 27 a ) is further provided, and the flow control member ( 30 ) does not come into contact with the movable member ( 23 ) deformed in the axial direction when a liquid pressure of the main liquid chamber ( 16 a ) varies based on an input from a vibration-generating part.

ANTI-VIBRATION DEVICE

In the present invention, a restriction passage () includes a first communication portion () that is open to a first liquid chamber, a second communication portion () that is open to a second liquid chamber, and a main body flow path () that is configured to cause the first communication portion () and the second communication portion () to communicate with each other, and in a portion of the main body flow path () connected to at least one of the first communication portion () and the second communication portion (), a guide portion () that is configured to guide a liquid from the other of the first communication portion () and the second communication portion () to an opposed surface () that is opposed to one of the first communication portion () and the second communication portion () in an inner surface of the restriction passage () is disposed. 1. A liquid-sealed type anti-vibration device comprising:a cylindrical first mounting member connected to either one of a vibration generating portion and a vibration receiving portion, and a second mounting member connected to the other;an elastic body elastically connecting both the mounting members to each other; anda partition member that partitions a liquid chamber in the first mounting member in which a liquid is sealed into a first liquid chamber and a second liquid chamber,wherein a restriction passage that is configured to cause the first liquid chamber and the second liquid chamber to communicate with each other is formed in the partition member,the restriction passage includes a first communication portion that is open to the first liquid chamber, a second communication portion that is open to the second liquid chamber, and a main body flow path that is configured to cause the first communication portion and the second communication portion to communicate with each other, andin a portion of the main body flow path connected to at least one of the first communication portion and the second communication portion ...

ENGINE-MOUNT

An engine mount includes: an insulator arranged inside a housing and deformed elastically in accordance with a force applied to a core connected to an upper end thereof; a nozzle plate having a flow channel opened up/downward for hydro liquid and connected between a diaphragm connected to the housing and the insulator; and a piston partitioning an internal space between the insulator and the nozzle plate and connected to the core to move in accordance force applied to the core, wherein upper and lower liquid chambers are formed between the piston and the nozzle plate, and between the nozzle plate and the diaphragm, respectively, and an air chamber through which ambient air can enter/exit is formed between the piston and the insulator. Vibration produced over a wide frequency region can be dampened more effectively by using air and the hydro liquid as an operation liquid.

VIBRATION DAMPING DEVICE

A laminar flow path () is opened into the vortex chambers (and ) from inner peripheral surfaces that face in radial directions of the vortex chambers (and ) being aimed in circumferential directions of the vortex chambers (and ) among wall surfaces defining the vortex chambers (and ). A communication hole () is opened into the vortex chamber (and ) from an end surface that faces in a direction of center axis of the vortex chamber (and ) being aimed in a direction of a center axis among the wall surfaces defining the vortex chamber (and ). Blocking members (and ) extending in the direction of the center axis so as to surround the communication hole () from an outside in the radial direction are provided within the vortex chambers (and ). The blocking members (and ) are provided with flow openings (and ) penetrating the blocking members (and ). The vortex chambers (and ) form circulating flows of a liquid according to a flow speed of the liquid flowing in from the laminar flow path () and allows the liquid to flow out from the communication hole () through the flow openings (and ). Therefore, simplification of structure and facilitation of manufacture are achieved while maintaining product characteristics of a vibration damping device. 1. A vibration damping device comprising:a tubular first attachment member coupled to any one of a vibration generating part and a vibration receiving part, and a second attachment member coupled to the other thereof;an elastic body coupling both of the attachment members; anda partitioning member that partitions a liquid chamber within the first attachment member having a liquid enclosed therein into a first liquid chamber and a second liquid chamber,wherein at least one of the first liquid chamber and the second liquid chamber has the elastic body on a portion of a wall surface thereof,wherein the partitioning member is provided with a vortex chamber unit that communicates with the first liquid chamber and the second liquid chamber, ...

HYDRAULIC ENGINE-MOUNT

A hydraulic engine mount, capable of preventing a rattle noise, improving Noise, Vibration, and Harshness (NVH) performance by lowering dynamic characteristics of the hydraulic engine mount in an idling state, and capable of generating a high damping value in a state having a relatively large amount of vibration displacement, includes a case having a hydraulic fluid sealed therein, a nozzle plate having a lower nozzle plate and an upper nozzle plate coupled to an upper portion of the lower nozzle plate, and dividing an inside of the case into an upper fluid chamber and a lower fluid chamber, a first membrane disposed on the upper portion of the lower nozzle plate such that a first edge portion of the first membrane is tightly coupled to the upper portion of the lower nozzle plate, and provided with at least one first communicating hole, a second membrane disposed on a lower portion of the upper nozzle plate such that a second edge portion of the second membrane is tightly coupled to the lower portion of the upper nozzle plate, and provided with at least one second communicating hole, and a separation plate allowing the first membrane and the second membrane to be apart from each other so as to provide a flow space between the first membrane and the second membrane. 1. A hydraulic engine mount comprising:a case having a hydraulic fluid sealed therein;a nozzle plate having a lower nozzle plate and an upper nozzle plate coupled to an upper portion of the lower nozzle plate, and dividing an inside of the case into an upper fluid chamber and a lower fluid chamber;a first membrane disposed on the upper portion of the lower nozzle plate such that a first edge portion of the first membrane is tightly coupled to the upper portion of the lower nozzle plate, and provided with at least one first communicating hole;a second membrane disposed on a lower portion of the upper nozzle plate such that a second edge portion of the second membrane is tightly coupled to the lower portion ...

Liquid sealed vibration isolating device

In an elastic partition member, a movable diaphragm outer circumferential section for supporting an outer circumference of an elastic movable diaphragm is formed integral with a relief valve. The elastic movable diaphragm is integrally formed with the elastic movable diaphragm. An upward circular arc projection that extends upwardly is provided on an upper part of the movable diaphragm outer circumferential section, and is fixed by a fixing portion provided in an upper member of a partition. A portion in the vicinity of a base portion of the relief valve is formed as a rectilinear unsupported portion that is flush with the elastic movable diaphragm. The base portion extends rectilinearly along the unsupported portion. When being opened, the relief valve is easily bent by the rectilinear base portion and is elastically deformable large enough to extend above the unsupported portion.

VIBRATION-DAMPING DEVICE

The present invention is a vibration-damping device () which is provided with: a first attachment member () joined to one of a vibration generating unit and a vibration receiving unit and a second attachment member () joined to an other thereof; an elastic body which joins the first attachment member () to the second attachment member (); a partition member () which partitions a liquid chamber in the first attachment member () into a first liquid chamber () and a second liquid chamber (), and in which at least one of the first liquid chamber () and the second liquid chamber () has the elastic body () as a portion of a wall surface thereof. The partition member () is provided with a communicating passage (), and the communicating path () is provided with a branching section () and a confluence section (). 1. A vibration-damping device in which at least one of a first liquid chamber and a second liquid chamber has an elastic body as a portion of a wall surface , the vibration-damping device comprising:a tubular first attachment member joined to one of a vibration generating unit and a vibration receiving unit;a second attachment member joined to an other of the vibration generating unit and the vibration receiving unit;an elastic body which joins the first attachment member to the second attachment member; anda partition member which partitions a liquid chamber in the first attachment member in which a liquid is sealed into a first liquid chamber and a second liquid chamber,wherein the partition member is provided with a communicating passage through which the first liquid chamber communicates with the second liquid chamber, andthe communicating passage is provided with a branching section which branches a flow of the liquid flowing between the first liquid chamber and the second liquid chamber via the communicating passage and a confluence section which joins at least a portion of flows of the liquid which is branched by the branching section to a flow of another ...

VIBRATION ISOLATION DEVICE

A vibration isolation device () of the present invention includes: a tubular first attachment member () coupled to one of a vibration generating part and a vibration receiving part, and a second attachment member() coupled to the other thereof; an elastic body () which couples both the attachment members together; and a partition member () which partitions a liquid chamber in the first attachment member () in which a liquid (L) enclosed into a first liquid chamber () and a second liquid chamber (), in which at least one of the first liquid chamber () and the second liquid chamber () has the elastic body () as a portion of a wall surface thereof and a communication passage () which communicates with the first liquid chamber () and the second liquid chamber (), and a barrier rigid body which is disposed in the communication passage () are provided in the partition member (). 1. A vibration isolation device , comprising:a tubular first attachment member coupled to one of a vibration generating part and a vibration receiving part, and a second attachment member coupled to the other thereof;an elastic body which couples both the attachment members together; anda partition member which partitions a liquid chamber within the first attachment member having a liquid enclosed therein into a first liquid chamber and a second liquid chamber,wherein at least one of the first liquid chamber and the second liquid chamber has the elastic body as a portion of a wall surface thereof, andwherein a communication passage which communicates with the first liquid chamber and the second liquid chamber, and a barrier rigid body which is disposed in the communication passage are provided in the partition member.2. The vibration isolation device according to claim 1 ,wherein the barrier rigid body is disposed on a flow passage axis of the communication passage.3. The vibration isolation device according to claim 1 ,wherein a limit passage, which is provided independently from the ...

VIBRATION ISOLATION DEVICE

A vibration isolation device () of the present invention includes a tubular first attachment member () coupled to one of a vibration generating part and a vibration receiving part, and a second attachment member () coupled to the other thereof, an elastic body () which couples both the attachment members together, and a partition member () which partitions a liquid chamber within the first attachment member () having a liquid (L) enclosed therein into a first liquid chamber () and a second liquid chamber (), in which at least one of the first liquid chamber () and the second liquid chamber () has the elastic body () as a portion of a wall surface thereof, the partition member () includes an intermediate chamber () which is disposed inside the partition member (), a first communication passage () which communicates with the intermediate chamber () and the first liquid chamber (), and a second communication passage () which communicates with the intermediate chamber () and the second liquid chamber (), and a barrier rigid body () which faces at least one of the first communication passage () and the second communication passage () is disposed inside the intermediate chamber (). 1. A vibration isolation device , comprising:a tubular first attachment member coupled to one of a vibration generating part and a vibration receiving part, and a second attachment member coupled to the other thereof;an elastic body which couples both the attachment members together; anda partition member which partitions a liquid chamber within the first attachment member having a liquid enclosed therein into a first liquid chamber and a second liquid chamber,wherein at least one of the first liquid chamber and the second liquid chamber has the elastic body as a portion of a wall surface thereof,wherein the partition member includes an intermediate chamber which is disposed inside the partition member, a first communication passage which communicates with the intermediate chamber and the first ...

FLUID-FILLED VIBRATION DAMPING DEVICE

A fluid-filled vibration damping device including: an inner mounting member; an outer bracket formed by molding; a main rubber elastic body elastically connecting the inner mounting member and the outer bracket with each other; a fluid chamber for which a portion of a wall is constituted by the main rubber elastic body with a non-compressible fluid sealed therein; a caulking member whose material is different from a material of the outer bracket, the caulking member being fixed to the outer bracket in a projecting state; and a lid member constituting an other portion of the wall of the fluid chamber, the lid member being attached to the outer bracket by being fastened through caulking using the caulking member. 1. A fluid-filled vibration damping device comprising:an inner mounting member;an outer bracket formed by molding;a main rubber elastic body elastically connecting the inner mounting member and the outer bracket with each other;a fluid chamber for which a portion of a wall is constituted by the main rubber elastic body with a non-compressible fluid sealed therein;a caulking member whose material is different from a material of the outer bracket, the caulking member being fixed to the outer bracket in a projecting state; anda lid member constituting an other portion of the wall of the fluid chamber, the lid member being attached to the outer bracket by being fastened through caulking using the caulking member.2. The fluid-filled vibration damping device according to claim 1 , wherein the outer bracket is made of synthetic resin.3. The fluid-filled vibration damping device according to claim 1 , wherein the caulking member is fixed to the outer bracket as being partially buried in the outer bracket.4. The fluid-filled vibration damping device according to claim 1 , wherein the caulking member is fixed to the outer bracket by being engaged in the outer bracket.5. The fluid-filled vibration damping device according to claim 1 , wherein the lid member includes a ...

VIBRATION-DAMPING DEVICE

The present invention relates to a vibration-damping device () which is provided with: a tubular first attachment member () joined to one of a vibration generating unit and a vibration receiving unit; a second attachment member () joined to the other thereof; an elastic body () which joins the first attachment member () to the second attachment member (); and a partition member () which partitions a liquid chamber in the first attachment member () into a first liquid chamber () and a second liquid chamber (), and in which at least one of the first liquid chamber () and the second liquid chamber () has the elastic body () as a portion of a wall surface thereof. A vortex chamber unit () through which the first liquid chamber () communicates with the second liquid chamber () is formed in the partition member (). 1. A vibration-damping device in which at least one of a first liquid chamber and a second liquid chamber has an elastic body as a portion of a wall surface thereof , the vibration-damping device comprising:a tubular first attachment member joined to one of a vibration generating unit and a vibration receiving unit;a second attachment member joined to the other of the vibration generating unit and the vibration receiving unit;an elastic body which joins the first attachment member to the second attachment member; anda partition member which partitions a liquid chamber in the first attachment member in which a liquid is sealed into the first liquid chamber and the second liquid chamber,wherein the partition member is formed with a vortex chamber unit through which the first liquid chamber communicates with the second liquid chamber,the vortex chamber unit is provided with an annular vortex chamber, a first communicating section through which the vortex chamber communicates with the first liquid chamber, and a second communicating section through which the vortex chamber communicates with the second liquid chamber, andat least one of the first communicating ...

VIBRATIONPROOF DEVICE

A vibrationproof device which is a liquid sealed vibrationproof device includes a tubular first mounting member () that is connected to either one of a vibration generating portion and a vibration receiving portion, a second mounting member () that is connected to other one, an elastic body () that elastically connects the first mounting member () and the second mounting member (), and a partition member () that partitions a liquid chamber () of the inside of the first mounting member () into a main liquid chamber (A) of an upper side having the elastic body as a portion of a wall surface and an auxiliary liquid chamber (B) of a lower side, and a restricting passage () which communicates with the main liquid chamber (A) and the auxiliary liquid chamber (B). In addition, a first liquid (L) is contained as a main liquid and a second liquid (L) which is insoluble in the first liquid (L) is contained as an added liquid in the sealed liquid (L), and the vapor pressure of the second liquid (L) is higher than the vapor pressure of a main component of the first liquid (L) in the same temperature and a specific gravity of the second liquid (L) is lighter than a specific gravity of the first liquid (L). 1. A vibrationproof device which is a liquid sealed vibrationproof device comprising:a tubular first mounting member that is connected to either one of a vibration generating portion and a vibration receiving portion;a second mounting member that is connected to other one of the vibration generating portion and the vibration receiving portion;an elastic body that elastically connects the first mounting member and the second mounting member to each other; anda partition member that partitions a liquid chamber of the inside of the first mounting member into a main liquid chamber of a lower side having the elastic body as a portion of a wall surface and an auxiliary liquid chamber of an upper side,wherein a restricting passage is formed which communicates with the main liquid ...

HYDRAULICALLY DAMPING MOUNT

A hydraulically damping mount for mounting a motor vehicle unit on a motor vehicle body includes a support and a support mount which are interconnected by a support spring made of an elastomeric material. In embodiments, a support spring limits a working chamber which is separated from a compensating chamber by a separating device, wherein the working chamber and the compensating chamber may be filled with a fluid and may be connected to one another via a damping channel included in the separating device, wherein the separating device may include two nozzle discs between which a first membrane and a second membrane are arranged, and wherein one of the membranes has at least one through-hole. 110.-. (canceled)11. A hydraulically damping mount for mounting a motor vehicle unit on a motor vehicle body , the hydraulic damping mount comprising a support and a support mount that are interconnected by a support spring made of an elastomeric material , the support spring limiting a working chamber that is separated from a compensating chamber by a separating device , the working chamber and the compensating chamber being filled with a fluid and interconnected via a damping channel included in the separating device , wherein the separating device has two nozzle discs between which a first diaphragm and a second diaphragm are arranged , and wherein one of the diaphragms has at least one through-hole such that the fluid can flow directly to the one of the diaphragms that does not have the at least one through-hole.12. The hydraulically damping mount according to claim 11 , wherein the one of the diaphragms has a plurality of through-holes.13. The hydraulically damping mount according to claim 12 , wherein the plurality of through-holes are spaced evenly from one another.14. The hydraulically damping mount according to claim 12 , wherein the plurality of through-holes are spaced unevenly from one another.15. The hydraulically damping mount according to claim 12 , wherein the ...

FLUID-FILLED VIBRATION DAMPING DEVICE

A fluid-filled vibration damping device including: primary and auxiliary liquid chambers; a partition provided between the two chambers; and a movable plate supported movably in a plate thickness direction thereof by the partition. The movable plate receives liquid pressure of the two chambers on its opposite faces so as to constitute a liquid pressure absorber. The partition includes at least one communication hole opening onto its surface facing the movable plate. The movable plate includes at least one elastic protrusion projecting toward the communication hole. The elastic protrusion includes a peripheral wall to be pressed in compression and shear directions and be elastically deformed to a radially inner side of the communication hole as well by coming into contact with a wall portion of the communication hole due to movement of the movable plate in the plate thickness direction. 1. A fluid-filled vibration damping device comprising:a primary liquid chamber;an auxiliary liquid chamber;a partition provided between the primary liquid chamber and the auxiliary liquid chamber; anda movable plate supported movably in a plate thickness direction thereof by the partition, the movable plate receiving on one face thereof liquid pressure of the primary liquid chamber and on another face thereof liquid pressure of the auxiliary liquid chamber so as to constitute a liquid pressure absorber, whereinat least one communication hole opens onto a surface of the partition, the surface facing the movable plate,at least one elastic protrusion projects from the movable plate toward the communication hole, andthe elastic protrusion includes a peripheral wall, the peripheral wall being configured to be pressed in a compression direction as well as in a shear direction and be elastically deformed to a radially inner side of the communication hole as well by means of the peripheral wall coming into contact with a wall portion of the communication hole due to movement of the movable ...

INVERTED LIQUID SEALED MOUNT

In the inverted type liquid sealed engine mount in which a secondary liquid chamber is located above, an insulator protrudes in a mountain shape into a primary liquid chamber, and a resistor is provided within an annular recess section formed around the protruding portion. The resistor is mounted by insertion into an engaging recess of a lining layer and elastically supported by ribs so as to be movable in the annular recess section due to liquid flowing in the circumferential direction. A regulation gap is provided between the resistor and the insulator. Although a peculiar resonance occurs when the liquid passes through the regulation gap, the peak of the anti-resonance is decreased and the frequency is moved, since the resistor is movable. 1. An inverted liquid sealed mount comprising:an inner member being mounted on one of a vibration source side member and a vibration receiving side member;an outer member surrounding the inner member and being mounted on the other of the vibration source side member and the vibration receiving side member;an insulator of a circular truncated cone shape covering an opening section of one end of the outer member and elastically connecting the inner member and the outer member;a liquid chamber being formed between the insulator and a diaphragm which cover an opening section of the other end of the outer member;a partition member separating the liquid chamber into a primary liquid chamber and a secondary liquid chamber;an orifice communicating between the primary liquid chamber and the secondary liquid chamber; anda top of the insulator projecting into the primary liquid chamber in an input direction of vibration which pressurizes the primary liquid chamber;wherein a resistor is arranged in an annular recess section formed around the insulator within the primary liquid chamber and narrows a portion of the annular recess section so as to form a regulation gap, and the resistor is mounted by engagement with an elastic support section ...

VIBRATION-DAMPING DEVICE

A vibration-damping device () includes a first attachment member (), a second attachment member (), an elastic body (), and a partitioning member (). Limiting passages () are formed in the partitioning member (), and the limiting passages () include a first limiting passage () and a second limiting passage (). An inner peripheral surface of the first limiting passage () is provided with flow changing protrusions () that protrude toward an inner side in a radial direction of the first limiting passage () and that changes the flow of a liquid (L) that flows through the first limiting passage () in an axial direction of the first limiting passage (). In a vertical cross-sectional view passing through an axis of the first limiting passage () and through the flow changing protrusions (), the first limiting passage () and the flow changing protrusion () have symmetrical shapes with respect to the axis. Protruding ends of the flow changing protrusions () form inner peripheral edges of passage holes () that are open on both sides in the axial direction. 1. A vibration-damping device comprising:a tubular first attachment member coupled to any one of a vibration generating part and a vibration receiving part, and a second attachment member coupled to the other thereof;an elastic body that couples the first attachment member and the second attachment member together; anda partitioning member that partitions a liquid chamber within the first attachment member having a liquid enclosed therein into a first liquid chamber and a second liquid chamber,wherein at least one of the first liquid chamber and the second liquid chamber has the elastic body on a portion of a wall surface thereof,wherein a limiting passage that allows the first liquid chamber and the second liquid chamber to communicate with each other is formed in the partitioning member,wherein the limiting passage includes a first limiting passage that causes resonance with respect to the input of an idle vibration, and a ...

Hydromount for mounting a motor vehicle engine

A hydromount for mounting a motor vehicle engine includes a load-bearing spring having an elastomeric material and being configured to support a mount core. A working chamber is delimited by the load-bearing spring. An equalization chamber is separated by an intermediate plate from the working chamber and delimited by an equalization membrane having an elastomeric material. The working chamber and the equalization chamber are filled with a hydraulic liquid and connected to each other by a damping channel. The intermediate plate is mounted in an elastic receiving device which grasps around the intermediate plate and has a pivotable supporting region.

MOUNTING DEVICE FOR ABSORBING VIBRATION

A mounting device for absorbing vibration may include a housing, a mounting bolt having a first end portion inserted into the housing, a core supported inside the housing, an elastic member disposed between an outer surface of the core and an inner surface of the housing, and a separator having an outer surface fixed to an inner circumferential surface of the housing and configured to separate a first chamber and a second chamber in the housing, wherein the separator includes a mounting bracket having an outer surface fixed to the inner surface of the housing, and a center portion hole, and a membrane mounted to the mounting bracket and having a slit formed by being cut along a predetermined line within a region which corresponds to the center portion hole, and wherein a bridge is formed in the center portion hole of the mounting bracket. 1. A mounting device for absorbing vibration comprising:a housing having a first side configured to be fixed to a vehicle body;a mounting bolt having a first end portion inserted into the housing, and a second end portion configured to be connected to a vibration source;a core supported inside the housing and configured to enclose the first end portion of the mounting bolt;an elastic member disposed between an outer surface of the core and an inner surface of the housing and configured to absorb displacement between the mounting bolt and the housing; anda separator having an outer surface fixed to an inner circumferential surface of the housing and configured to separate a first chamber and a second chamber in the housing, a mounting bracket having an outer surface fixed to the inner surface of the housing, and a center portion hole formed in a center portion thereof; and', 'a membrane mounted to the mounting bracket so as to close the center portion hole and having a slit formed by being cut along a predetermined line within a region which corresponds to the center portion hole, and, 'wherein the separator includeswherein a bridge ...

HYDRAULIC ENGINE MOUNT

A hydraulic engine mount is provided in which related components out of two or more internal parts are coupled to reduce the number of components and to prevent oil leakage occurring due to coupling of the parts. The hydraulic engine mount includes a core that has a central bolt inserted into a central portion thereof, a rubber member formed on an outer circumferential surface of the core, upper and lower fluid chambers to seal a fluid therein. A diaphragm is disposed at a lower end of the lower fluid chamber and an orifice assembly divides the upper and lower fluid chambers from each other and has nozzle upper and lower plates. A nozzle upper plate-combined case that has a flow path is formed integrally with a lower part of the rubber member, and a lower part of the flow path is hermetically sealed by the nozzle lower plate. 1. A hydraulic engine mount , comprising:a core having a central bolt engaged with an engine and inserted into a central portion of the core, and a rubber member formed on an outer circumferential surface of the core, the core and the rubber member being disposed in a bracket housing;an upper fluid chamber that contacts the core and the rubber member to seal a fluid therein;a lower fluid chamber disposed under the upper fluid chamber to seal the fluid therein;a diaphragm disposed at a lower end of the lower fluid chamber; andan orifice assembly that divides the upper fluid chamber and the lower fluid chamber from each other and includes a nozzle upper plate and a lower upper plate,wherein a nozzle upper plate-combined case having a flow path formed therein is formed integrally with a lower part of the rubber member, and a lower part of the flow path is hermetically sealed by the nozzle lower plate disposed under the flow path.2. The hydraulic engine mount according to claim 1 , wherein the nozzle upper plate-combined case is formed through metal pressing using steel and aluminum or injection molding using aluminum and synthetic resin.3. The ...

FLUID-FILLED VIBRATION DAMPING DEVICE

A fluid-filled vibration damping device including a second orifice passage and a third orifice passage tuned to a lower frequency than the second orifice passage, and an actuator including an output portion facing openings of the second and third orifice passages on a side of an equilibrium chamber via a flexible film. The flexible film obstructs the openings of the second and third orifice passages when the output portion comes into contact against a partition member so that the third orifice passage is blocked while the second orifice passage is substantially placed in communication owing to a center recess of the output portion permitting deformation of the flexible film. Meanwhile, the flexible film is separated from the openings of the second and third orifice passages when the output portion is separated from the partition member so that the two orifice passages are placed in communication. 1. A fluid-filled vibration damping device comprising:a first mounting member and a second mounting member elastically connected by a main rubber elastic body; a partition member supported by the second mounting member and defining to one side of the partition member a pressure-receiving chamber whose wall is partially constituted by the main rubber elastic body, while defining to another side of the partition member an equilibrium chamber whose wall is partially constituted by a flexible film, the pressure-receiving chamber and the equilibrium chamber being filled with a non-compressible fluid; anda first orifice passage formed in an outer peripheral portion of the partition member and permitting communication between the pressure-receiving chamber and the equilibrium chamber;a second orifice passage formed in a center portion of the partition member and tuned to a higher frequency than the first orifice passage while permitting communication between the pressure-receiving chamber and the equilibrium chamber;a third orifice passage formed in the center portion of the ...

HYDRAULIC BODY MOUNT

A hydraulic body mount with a combined rubber cushion and a hydraulic module may include an inner shaft, a mounting plate, a mounting bracket, a main rubber element, an inner ring, a fluid track, an upper bellows, a washer, a lower bellows, an outer can, a rate plate, a lower bushing, a crash washer, a doubler plate, and a retainer bracket. The fluid track may be configured to receive a fluid via a fluid port. The upper and/or lower bellows may be configured to interact with the fluid. The rate plate may be configured to engage the lower bushing and may be deformed when receiving the at least a portion of the inner shaft. 1. A hydraulic body mount assembly , the assembly comprising:an inner shaft;a plate secured to the inner shaft;a main rubber element formed about at least a portion of the inner shaft, plate, and a mounting bracket;an upper bellows formed about a fluid track, the upper bellows configured to engage the inner shaft;a lower bellows configured to engage the inner shaft and the fluid track;an outer can including a lower bushing and a rate plate, wherein the lower bushing and the rate plate is configured to receive the inner shaft, mounting bracket, upper bellows, fluid track, and lower bellows; anda retainer bracket that secures a crash washer to the lower bushing via the inner shaft.2. The hydraulic body mount assembly of claim 1 , wherein the rate plate includes a plurality of members joined by at least one frangible element.3. The hydraulic body mount assembly of claim 1 , wherein the rate plate is configured at least partially encapsulated within the lower bushing.4. The hydraulic body mount assembly of claim 3 , wherein the rate plate is configured to at least partially deform upon insertion of the inner shaft into the lower bushing and the rate plate.5. The hydraulic body mount assembly of claim 1 , wherein at least a portion of at least one of the inner shaft claim 1 , the plate claim 1 , the mounting bracket claim 1 , the first inner ring claim ...

HYDRAULIC ENGINE MOUNT

Methods and systems are provided for manufacturing a hydraulic engine mount. During assembly, one or more gel caps may be inserted into a chamber of the engine mount, the chamber is then filled with a fluid and sealed to allow the gel caps to dissolve. Upon dissolving, the gel caps may release air bubbles to reduce pressure differentials across the engine mount to reduce occurrence of cavitation and NVH issues. 1. A method for manufacturing a hydraulic engine mount , comprising:inserting air filled dissolving caps into a chamber below a main rubber element; andfilling the chamber with a fluid and sealing the chamber.2. The method of claim 1 , wherein the chamber is permanently sealed.3. The method of claim 2 , wherein the fluid comprises glycol.4. The method of claim 1 , wherein a size of the dissolving caps is selected based on a predicted powertrain mass coupled with the mount when assembled in a vehicle.5. The method of claim 1 , wherein the size is selected based on a mass of the engine.6. The method of claim 1 , wherein the chamber is formed by the main rubber element and is positioned above both an upper channel plate and a lower channel plate.7. The method of claim 6 , wherein the main rubber element is below and in direct contact with an engine side insert.8. The method of claim 7 , wherein the cap is placed in direct contact with the upper channel plate.9. The method of claim 8 , wherein the main rubber element has fluid in direct contact therewith.10. The method of claim 9 , wherein a bellow is positioned below a lower channel plate.11. The method of claim 10 , further comprising forming encapsulated air globules in the fluid without utilizing a special fixture applying a preload of a certain displacement to the mount while injecting the glycol into an inertia track.12. The method of claim 11 , wherein the mount further has a travel limiter above the main rubber element.13. A product line claim 11 , comprising:a first mount with an air filled dissolving ...

HYDRAULICALLY DAMPING MOUNT

A hydraulically damping mount for mounting a motor vehicle unit, such as mounting a motor vehicle engine on a motor vehicle body, includes a supporting spring and a compensation chamber. The supporting spring is configured to support a mount core and surround a working chamber. The compensation chamber is separated from the working chamber by a dividing wall and delimited by a compensation diaphragm. In embodiments, the compensation chamber and the working chamber are filled with a fluid and are connected to each other by a damping duct incorporated into the dividing wall. In embodiments, the dividing wall includes a diaphragm that is capable of oscillating, and a foam element associated with the diaphragm supports the diaphragm in the event of a deflection. 19.-. (canceled)10. A hydraulically damping mount for mounting a motor vehicle unit comprises:a supporting spring, the supporting spring supporting a mount core and surrounding a working chamber; anda compensation chamber separated from the working chamber by a dividing wall and comprising a compensation diaphragm,wherein the compensation chamber and the working chamber are filled with a fluid and are connected to each other by a damping duct incorporated into the dividing wall; the dividing wall has a diaphragm configured to oscillate; and a foam element is associated with the diaphragm and supports the diaphragm in the event of a deflection.11. The hydraulically damping mount according to claim 10 , wherein the foam element supports the diaphragm claim 10 , and the foam element is compressed by the diaphragm oscillating.12. The hydraulically damping mount according to claim 10 , wherein the foam element is accommodated in a foam element chamber.13. The hydraulically damping mount according to claim 10 , wherein the foam element chamber is sealed at one end face by the diaphragm.14. The hydraulically damping mount according to claim 10 , wherein the foam element comprises a closed-cell foam.15. The ...

VIBRATION-DAMPING DEVICE

The present invention is a liquid-tight the vibration-damping device (). In this vibration-damping device (), a limiting passage () includes a main body passage () disposed inside a partition member (), a first communication section () configured to communicate the main body passage () and a first liquid chamber (), and a second communication section () configured to communicate the main body passage () with a second liquid chamber (). At least one of the first communication section () and the second communication section () includes openings (). 1. A liquid-tight vibration-damping device which includes:a tubular first attachment member joined to one of a vibration generating section and a vibration receiving section;a second attachment member joined to the other of the vibration generating section and the vibration receiving section;an elastic body configured to elastically join the first attachment member and the second attachment member;a partition member configured to partition a liquid chamber in the first attachment member in which a liquid is sealed into a first liquid chamber and a second liquid chamber; anda limiting passage formed in the partition member and configured to communicate the first liquid chamber and the second liquid chamber,wherein, the limiting passage includes:a main body passage disposed in the partition member and defined by a first wall of the partition member which faces the first liquid chamber and a second wall thereof which faces the second liquid chamber;a first communication section configured to communicate the main body passage and the first liquid chamber;a second communication section configured to communicate the main body passage and the second liquid chamber, andat least one of the first communication section and the second communication section passes through the first wall or the second wall and has openings disposed in a passage direction of the main body passage.2. The liquid-tight vibration-damping device according to ...

ENGINE MOUNT HAVING BRACKET COUPLING HOOK

An engine mount for a vehicle includes: a core which is made of a plastic material and attached to an outer circumferential surface at a lower end of a main rubber body; and a cover which is coupled to the core to close a lower opening of a bracket, in which the core and the bracket are assembled by coupling the core and the cover and then inserting a hook formed on the core into a groove formed in an inner wall surface of a body of the bracket. 1. An engine mount for a vehicle , which includes a bracket having a body and a bridge , a main rubber body , a nozzle plate , and a diaphragm , the engine mount comprising:a core which is made of a plastic material and attached to an outer circumferential surface at a lower end of the main rubber body; anda cover which accommodates the nozzle plate and the diaphragm and is coupled to the core to close a lower opening of the bracket,wherein the core and the bracket are assembled by coupling the core attached to the main rubber body to the cover and then inserting a hook formed on the core into a groove formed in an inner wall surface of the body of the bracket.2. The engine mount of claim 1 , wherein the groove has a groove bottom surface claim 1 , a groove wall surface claim 1 , and a groove ceiling surface and is processed to be stepped so that a difference between a width of the groove ceiling surface and a width of the groove bottom surface is a predetermined length.3. The engine mount of claim 1 , wherein the core has a body formed at a lower side thereof and a flange formed at an upper side of the body claim 1 , the plurality of hooks protrudes along an outer circumferential surface of the flange claim 1 , and the hooks have pins that extend downward vertically at a lower side of the hooks.4. The engine mount of claim 3 , wherein the cover has a rim surface formed at an upper side of the body claim 3 , and a plurality of holes into which the pins of the core are inserted is formed in the rim surface.5. The engine mount ...

Vibration isolator

A vibration isolator includes an inner tube ( 11 ), an outer tube ( 12 ) surrounding the inner tube ( 11 ) from a radial outer side of the inner tube, and an elastic body ( 13 ) coupling the inner tube ( 11 ) and the outer tube ( 12 ). Multiple pressure-absorbing fluid chambers ( 35, 36 ), whose walls are partly formed by the elastic body ( 13 ), are disposed inside the outer tube ( 12 ), and include a pair of first pressure-absorbing fluid chambers ( 35 ) interconnected through first restricting passages ( 37 ), and a second pressure-absorbing fluid chamber ( 36 ) connected to an auxiliary fluid chamber ( 28 ), in which a fluid is filled, through a second restricting passage. The pair of first pressure-absorbing fluid chambers ( 35 ) are disposed to sandwich the inner tube ( 11 ) therebetween. The second pressure-absorbing fluid chamber ( 36 ) is arranged in parallel to the inner tube ( 11 ) in an orthogonal direction (C) perpendicular to both an axial direction of the inner tube ( 11 ) and a sandwiching direction (B) in which the inner tube ( 11 ) is sandwiched between the pair of first pressure-absorbing fluid chambers ( 35 ). The inner tube ( 11 ) runs along overall lengths of the pair of first pressure-absorbing fluid chambers ( 35 ) and the second pressure-absorbing fluid chamber ( 36 ) in the axial direction.

PARALLEL TYPE ENGINE MOUNT STRUCTURE

Disclosed is a parallel type engine mount structure that includes a main rubber member having a core disposed at an upper portion thereof and a fluid chamber disposed at a lower portion thereof. A bracket is disposed at an exterior of the main rubber member and a membrane is mounted at a lower portion of the fluid chamber. Additionally, a first space is disposed at a lower portion of the membrane on which one end of a first leaf spring is mounted. An orifice is disposed at an exterior side of the first space and includes an upper liquid chamber formed between the main rubber member and the membrane and a lower liquid chamber. A driver is disposed at an exterior side of the bracket and includes a second space formed at a lower portion thereof and a second leaf spring connected to the first leaf spring. 1. A parallel type engine mount structure comprising:a main rubber member including a core disposed at an upper portion of the main rubber member and a fluid chamber disposed at a lower portion of the main rubber member;a bracket having a housing shape and disposed at an exterior portion of the main rubber member;a membrane mounted at a lower portion of the fluid chamber of the main rubber member to decrease vibration;a first space disposed at a lower portion of the membrane;a first leaf spring having one end mounted on the membrane and the other end positioned at the first space;an orifice including an upper liquid chamber having a nozzle inlet structure and formed between the main rubber member and the membrane and a lower liquid chamber having a nozzle outlet structure and disposed at an exterior side of the first space; anda driver disposed at one end of an exterior side of the bracket and including a second space formed at a lower portion of the driver and a second leaf spring disposed in the second space and connected to the first leaf spring.2. The parallel type engine mount structure of claim 1 , wherein the driver is an electromagnet.3. The parallel type ...

LIQUID-CHARGED ANTIVIBRATION DEVICE

An object of the present invention is to provide a liquid-charged antivibration device for reducing amplitude dependency. Provided is a liquid-charged antivibration device including: a liquid chamber in which operating liquid is charged; and a partitioning member which partitions the liquid chamber into a main liquid chamber and a sub liquid chamber. 1. A liquid-charged antivibration device , comprising:a liquid chamber in which operating liquid is charged; anda partitioning member which partitions the liquid chamber into a main liquid chamber and a sub liquid chamber,wherein the partitioning member includes: a first plate disposed on the main liquid chamber side; a second plate disposed on the sub liquid chamber side; and an elastic partitioning member sandwiched between the first plate and the second plate,wherein the elastic partitioning member includes: a thin membrane portion; and a thick membrane portion whose thickness in a direction of a vibration input axis is thicker than that of the thin membrane portion,wherein the second plate includes a restricting portion which restricts elastic deformation of the elastic partitioning member, andwherein the restricting portion includes:a first restricting portion which is disposed so as to face the thick membrane portion and restricts elastic deformation amount of the thick membrane portion; anda second restricting portion which is disposed so as to face the thin membrane portion and restricts elastic deformation amount of the thin membrane portion.2. The liquid-charged antivibration device according to claim 1 ,wherein clearance between the thick membrane portion and the first restricting portion is smaller than clearance between the thin membrane portion and the second restricting portion.3. The liquid-charged antivibration device according to claim 1 ,wherein the first restricting portion and the second restricting portion are disposed so as to be perpendicular at least partially to each other. This application ...

VIBRATION-DAMPING DEVICE

A vibration-damping device () in the present application includes a first limiting passage () and a second limiting passage (). The first limiting passage () includes pressure loss units (). Each of the pressure loss units () is provided with an intermediate chamber (), a first communication passage (), and a second communication passage (). An opening axis (L) of a first opening () that opens toward the inside of the intermediate chamber () in the first communication passage () and an opening axis (L) of a second opening () that opens toward the inside of the intermediate chamber () in the second communication passage () are offset from each other. At least one of the first opening () and the second opening () opens toward a wall surface that defines the intermediate chamber (). The pressure loss units () include a first pressure loss unit () in which the first communication passage () directly communicates with the first liquid chamber () and the first opening () opens toward the wall surface that defines the intermediate chamber (). In the first pressure loss unit (), a portion that faces the first opening () and that is in the wall surface that defines the intermediate chamber (), is formed by the elastic membrane (). 1. A vibration-damping device comprising:a tubular first attachment member coupled to any one of a vibration generating part and a vibration receiving part, and a second attachment member coupled to the other thereof;an elastic body coupling both of the attachment members; anda partition member that partitions a liquid chamber within the first attachment member having a liquid enclosed therein into a first liquid chamber and a second liquid chamber,wherein at least the first liquid chamber of the first liquid chamber and the second liquid chamber has the elastic body on a portion of a wall surface thereof,wherein a limiting passage that allows the first liquid chamber and the second liquid chamber to communicate with each other is formed in the ...

FLUID-FILLED VIBRATION DAMPING DEVICE

A fluid-filled vibration damping device including a hollow buffer body with an inner space. The hollow buffer body is housed in a housing space of a partition member to come in contact with wall inner surfaces of the housing space on sides of a pressure-receiving chamber and an equilibrium chamber, while stores a movable member in the inner space thereof. Liquid pressure of the pressure-receiving chamber is applied to a first face of the movable member by having a first window portion formed in the buffer body communicated with a first communication hole of the housing space while liquid pressure of the equilibrium chamber is applied to a second face of the movable member by having a second window portion formed in the buffer body communicated with a second communication hole of the housing space. 1. A fluid-filled vibration damping device comprising:a first mounting member;a second mounting member;a main rubber elastic body elastically connecting the first and second mounting members;a partition member supported by the second mounting member;a pressure-receiving chamber whose wall portion is partially defined by the main rubber elastic body;an equilibrium chamber whose wall portion is partially defined by a flexible film, the pressure-receiving chamber and the equilibrium chamber being disposed on either side of the partition member and filled with a non-compressible fluid;an orifice passage through which the pressure-receiving chamber and the equilibrium chamber communicate with each other;a housing space formed within the partition member;a movable member housed in the housing space with liquid pressure of the pressure-receiving chamber applied to a first face of the movable member and liquid pressure of the equilibrium chamber applied to a second face of the movable member respectively through a first communication hole and a second communication hole formed in a wall of the housing space; anda hollow buffer body with an inner space housed in the housing space ...

LIQUID SEALED VIBRATION ISOLATING DEVICE

A relief valve is provided in a central part of an elastic diaphragm. A relief hole is provided in the central part of the relief valve. The relief valve is formed thinner than a main body section on an outer circumferential side thereof. Pressing projections protrude from the relief valve upper surface at predetermined intervals in the circumferential direction. The pressing projections contact a projection support section, and a central opening of a central section is located above the relief hole. During excessive deformation on a negative pressure side, the hydraulic liquid of a secondary liquid chamber allows an inner peripheral portion of the relief valve to cause such a preceding deformation as to be lifted up, and the relief valve is rapidly brought out of contact with the seal section, so that the hydraulic liquid leaks rapidly from the central opening to a primary liquid chamber. 1. A liquid sealed vibration isolating device comprising:a liquid chamber being partitioned into a primary liquid chamber and a secondary liquid chamber by a partition member,an orifice being provided in the partition member to communicate between the primary liquid chamber and the secondary liquid chamber, and a relief valve for controlling cavitation being provided in a central portion of an elastic diaphragm which is provided in the partition member,wherein the partition member is formed integrally by holding the elastic diaphragm between an upper holder and a lower holder,wherein the elastic diaphragm is provided at the central portion thereof with the relief valve and integrally provided at an outer peripheral portion thereof with a main body section for absorbing an internal pressure fluctuation of the primary liquid chamber, and the relief valve is formed thinner than the main body section and has a relief hole at a central portion thereof, andwherein the lower holder has a seal section provided below the relief valve, and the seal section comes in close contact with the ...

Vibration damping device

A vibration damping device includes: a cylindrical first attachment member and a second attachment member; and an annular first elastic body and an annular second elastic body, wherein, a liquid chamber is formed between the elastic bodies, elastic division walls that divide the liquid chamber into a plurality of pressure receiving liquid chambers are arranged, wherein the elastic division wall is joined to the first elastic body, and is also in abutment with the second elastic body, wherein the second attachment member is divided in the axial direction into: a first divided body to which an inner peripheral edge portion of the first elastic body is joined; and a second divided body to which an inner peripheral edge portion of the second elastic body is joined, and wherein the inner peripheral edge portions of the elastic bodies are located side by side in the axial O direction.

VIBRATION ATTENUATING FLUID MOUNT WITH PARTITIONED COMPENSATOR

A vibration attenuating fluid mount with a partitioned compensator includes an inner member, an outer member, a flexible member having a castellated transition between a fluid passageway and at least one operating chamber. A membrane may be disposed in a volume compensator in fluid communication with one or more operating chambers. The inner member and outer member may be connected via a castellated connection, a swaged lock ring, or a split-lock ring. 1. A fluid vibration isolator assembly , comprising:an inner member;an outer member;a first operating chamber;a second operating chamber;a first fluid passageway connecting the first operating chamber and the second operating chamber, wherein an inertial fluid is disposed in the first operating chamber, the second operating chamber, and the fluid passageway;a volume compensator comprising a gas-filled portion and a fluid-filled portion, wherein the fluid in the fluid-filled portion of the volume compensator is connected to one of the first or second operating chamber by a second fluid passageway; anda flexible member disposed between the inner member and the outer member, wherein the flexible member includes a castellated terminal end, wherein the castellated terminal end comprises at least one stepped portion that is stepped at an angle substantially normal to a longitudinal axis defined by the first fluid passageway.2. The assembly of claim 1 , further comprising a membrane separating the gas-filled portion and the fluid-filled portion of the volume compensator.3. The assembly of claim 2 , wherein the membrane is permeable to gas and impermeable to the fluid.4. The assembly of claim 1 , wherein the flexible member includes an interior portion disposed within the assembly and an exterior portion disposed external to the assembly.5. The assembly of claim 1 , wherein the inner member and the outer member are connected by a swaged locking ring connection.6. The assembly of claim 1 , wherein the inner member and the ...

SEPARATION DEVICE FOR SEPARATING A WORKING CHAMBER AND A COMPENSATION CHAMBER OF A HYDRAULICALLY DAMPING MOUNT, AND A HYDRAULICALLY DAMPING MOUNT

A separation device for separating a working chamber and a compensation chamber of a hydraulically damping mount includes a first nozzle disc and a second nozzle disc made of a first material and forming a damping channel interconnecting the working chamber and the compensation chamber. The first nozzle disc may include a sealing member made of a second material and abut the second nozzle disc to seal the damping channel. A hydraulically damping mount for mounting a motor vehicle unit may having a separating device. 1. A separation device for separating a working chamber and a compensation chamber of a hydraulically damping mount , the separation device comprising:a first nozzle disc; anda second nozzle disc;wherein the first nozzle disc and the second nozzle disc are made of a first material and form a damping channel that interconnects the working chamber and the compensation chamber, andwherein the first nozzle disc comprises a sealing member made of a second material and abuts the second nozzle disc to seal the damping channel.2. The separation device according to claim 1 , wherein the first nozzle disc and the sealing member are manufactured using a two-component injection moulding process.3. The separation device according to claim 1 , wherein the first material is a fibre-reinforced plastic; and the second material is a thermoplastic elastomer.4. The separation device according to claim 1 , wherein the sealing member surrounds the first nozzle disc on an outer circumferential side.5. The separation device according to claim 1 , wherein the second nozzle disc has a receiving opening into which the first nozzle disc is inserted.6. The separation device according to claim 5 , wherein there is an interference fit between the sealing member and an inner circumferential wall of the receiving opening.7. The separation device according to claim 5 , wherein the receiving opening has a circumferential shoulder against which the sealing member abuts.8. The separation ...

ENGINE MOUNT

An engine mount is provided in which a nozzle plate is mounted between an insulator and a diaphragm to divide an inner space into an upper liquid chamber and a lower liquid chamber. A hydraulic liquid flows between the upper and lower liquid chambers through a first flow path formed on the nozzle plate based on a change in volume in the engine mount. The nozzle plate which includes a second flow path having an outlet disposed at an upper end of the second flow path and in communication with the upper liquid chamber. A diaphragm is coupled to a lower portion of the nozzle plate to form the lower liquid chamber, and divides the lower liquid chamber into a main liquid chamber and an auxiliary liquid chamber. Additionally, a valve plate is seated at an upper side of the upper end of the second flow path. 1. An engine mount in which a nozzle plate is mounted between an insulator and a diaphragm to divide an inner space into an upper liquid chamber and a lower liquid chamber , and an encapsulated hydraulic liquid flows between the upper liquid chamber and the lower liquid chamber through a first flow path formed on the nozzle plate based on a change in volume in the engine mount , the engine mount comprising:a second flow path formed in the nozzle plate and having an outlet disposed at an upper end of the second flow path and in communication with the upper liquid chamber;a diaphragm coupled to a lower portion of the nozzle plate to form the lower liquid chamber, and mounted to divide the lower liquid chamber into a main liquid chamber and an auxiliary liquid chamber; anda valve plate seated at an upper side of the upper end of the second flow path,wherein the main liquid chamber is in communication with the upper liquid chamber via the first flow path, the auxiliary liquid chamber is in communication with the upper liquid chamber via the second flow path, and the hydraulic liquid flows between the upper liquid chamber and the auxiliary liquid chamber through the second ...

ANTIVIBRATION DEVICE

An antivibration device capable of simplifying its manufacturing process with an antivibration base body being precompressed. A first attached member includes an upright portion upstanding toward a displacement restriction member, and when a second attached member is retained on a retainer member with an antivibration base body being precompressed, the interposition of the upright portion enables a space into which one side of a connecting member is insertable, to be formed between the first attached member and the displacement restriction member. Thus, after the completion of a step (for example, a press-fitting step) of retaining the second attached member of a mount body on the retainer member, the one side of the connecting member is inserted into the space between the first attached member and the displacement restriction member to be fixedly fastened to the first attached member. 1. An antivibration device comprising:a mount body having a first attached member attached to a vibration source side, a second attached member attached to a vehicle body frame side, and an antivibration base body formed of a rubber-like elastic body and interconnecting the first attached member and the second attached member;a connecting member fixedly fastened on one side to the first attached member and fixedly fastened on the other side to the vibration source side;a retainer member retaining the second attached member; anda displacement restriction member disposed on the retainer member and surrounding the one side of the connecting member, the displacement restriction member being famed with an insertion hole for enabling a bolt to pierce which fixedly fastens the connecting member to the first attached member, whereinthe first attached member includes an upright portion upstanding toward the displacement restriction member, andwhen the second attached member is retained on the retainer member with the antivibration base body being precompressed, the interposition of the upright ...

ANTIVIBRATION DEVICE

An antivibration device capable of restraining a stopper rubber from being turned up when a connecting member is inserted between a first attached member and a displacement restriction member. A stopper rubber is mounted on a surface of a connecting member opposite to a first attached member and includes a mounted portion brought into abutment on a displacement restriction member when the connecting member is displaced in a rebound direction, and a hook portion formed at the outer edge of the mounted portion. The connecting member includes an engaged portion (protrusion) engaged with the hook portion. Thus, when the connecting member is inserted between the first attached member and the displacement restriction member, the stopper rubber (the mounted portion) can be restrained from being turned up. 1. An antivibration device comprising:a mount body having a first attached member attached to a vibration source side, a second attached member attached to a vehicle body frame side, and an antivibration base body formed of a rubber-like elastic body and interconnecting the first attached member and the second attached member;a connecting member fixedly fastened on one side to the first attached member and fixedly fastened on the other side to the vibration source side;a stopper rubber mounted on the connecting member;a retainer member retaining the second attached member;a displacement restriction member disposed on the retainer member and surrounding the one side of the connecting member, the displacement restriction member being formed with an insertion hole for enabling a bolt to pierce which fixedly fastens the connecting member to the first attached member, whereinthe stopper rubber includes a mounted portion mounted on a surface of the connecting member opposite to the first attached member and brought into abutment on the displacement restriction member when the connecting member is displaced in a rebound direction, and a hook portion formed at an outer edge of ...

LIQUID-SEALED ANTIVIBRATION DEVICE

A liquid-sealed antivibration device is equipped with a shaft member and a sleeve member, an antivibration base body constituted by a rubber-like elastic body which elastically supports the sleeve member relative to the shaft member and which defines a first liquid chamber and a second liquid chamber between the shaft member and the sleeve member, and an orifice forming member made of a synthetic resin and disposed inside the sleeve member. The orifice forming member is formed with end surfaces on which a hole portion piercing along the axis of the shaft member opens, and an outer peripheral surface adhered closely to the sleeve member to form a groove portion becoming an orifice which makes the first liquid chamber communicate with the second liquid chamber, and recesses formed at corner portions defined by the end surfaces and the outer peripheral surface are connected to the hole portion. 1. A liquid-sealed antivibration device comprising:a shaft member formed cylindrically;a sleeve member disposed with a space relative to the shaft member;an antivibration base body constituted by a rubber-like elastic body which elastically supports the sleeve member relative to the shaft member and which defines a first liquid chamber and a second liquid chamber between the shaft member and the sleeve member; andan orifice forming member made of a synthetic resin and disposed inside the sleeve member, whereinthe orifice forming member is formed with end surfaces on which a hole portion piercing along the axis of the shaft member opens, and an outer peripheral surface adhered closely to the sleeve member to form a groove portion becoming an orifice, the orifice making the first liquid chamber communicate with the second liquid chamber, andrecesses formed at corner portions defined by the end surfaces and the outer peripheral surface are connected to the hole portion.2. The liquid-sealed antivibration device according to claim 1 , whereinthe hole portion is formed at a plurality ...

ANTIVIBRATION DEVICE

An antivibration device capable of securing a thickness dimension of a stopper rubber without changing a gap between a connecting member and a stopper wall portion. A connecting member includes a base surface and a receding surface located to recede beyond the base surface in a direction to go away from a stopper wall portion, the base surface and the receding surface face the stopper wall portion, and a stopper rubber includes an inner fitting portion at which the connecting member is internally fitted. Thus, it is possible to secure a thickness dimension of the stopper rubber without changing a gap between the connecting member and the stopper wall portion. 1. An antivibration device comprising:a mount body having a first attached member attached to a vibration source side, a second attached member attached to a vehicle body frame side, and an antivibration base body formed of a rubber-like elastic body and interconnecting the first attached member and the second attached member;a connecting member fixedly fastened on one side to the first attached member and fixedly fastened on the other side to the vibration source side;a stopper rubber mounted on the connecting member;a retainer member retaining the second attached member;a stopper wall portion arranged on the retainer member and disposed to face the connecting member with a predetermined gap, so that the stopper rubber is brought into abutment on the stopper wall portion when the connecting member is displaced in a bound direction; anda displacement restriction member disposed on the retainer member and surrounding the one side of the connecting member, the displacement restriction member being famed with an insertion hole for enabling a bolt to pierce which fixedly fastens the connecting member to the first attached member, whereinthe connecting member includes a base surface and a receding surface located to recede beyond the base surface in a direction to go away from the stopper wall portion, and the base ...

SPRING FUNCTION COMPONENT FOR A HYDROELASTIC BEARING

A spring function component for a hydroelastic bearing is provided. The component includes an inner mounting connection, an outer mounting connection that radially encircles the inner mounting connection, and a spring body that flexibly connects the inner mounting connection and the outer mounting connection. The outer mounting connection is configured to be installed in an outer sleeve. In an assembled state of the outer mounting connection, the spring body at least partly forms a boundary between two working chambers configured to hold of a damping fluid, at least one choke channel is formed that hydraulically connects the working chambers to each other, and in addition to the choke channel there is at least one pressure relief valve configured so that when a specific pressure differential between the working chambers is exceeded, the at least one pressure relief valve opens and hydraulically connects the working chambers. 1. A spring function component for a hydroelastic bearing , the spring function component comprising:an inner mounting connection;an outer mounting connection that radially encircles the inner mounting connection; anda spring body that flexibly connects the inner mounting connection and the outer mounting connection with each other; the spring body at least partly forms a boundary between two working chambers configured to hold a damping fluid;', 'at least one choke channel is formed that hydraulically connects the working chambers to each other; and', at least one valve port located on an outer surface of the outer mounting connection and between the working chambers; and', 'at least one valve crosspiece located in the valve port and configured to close the at least one valve port until the specific pressure differential is exceeded;', 'wherein the at least one valve crosspiece, in a pre-assembled state of the outer mounting connection, has a cross section that tapers radially outward such that a radially outer tip of the at least one valve ...

FLUID-FILLED VIBRATION DAMPING DEVICE

A fluid-filled vibration damping device including an elastic buffer body supported by a partition member and arranged in a housing space such that at least one of wall inner surfaces of the housing space on sides of a pressure-receiving chamber and an equilibrium chamber is covered by the elastic buffer body. Windows are formed to penetrate the elastic buffer body at portions corresponding to communication holes formed in walls of the housing space so that the communication holes are narrowed by the windows of the elastic buffer body, and a ratio (a/l) of an opening area (a) of the windows to a penetration length (l) thereof is made smaller than a ratio (A/L) of an opening area (A) of the communication holes to a penetration length (L) thereof. 1. A fluid-filled vibration damping device comprising:a first mounting member;a second mounting member;a main rubber elastic body elastically connecting the first and second mounting members;a partition member supported by the second mounting member;a pressure-receiving chamber whose wall portion is partially defined by the main rubber elastic body;an equilibrium chamber whose wall portion is partially defined by a flexible film, the pressure-receiving chamber and the equilibrium chamber being disposed on either side of the partition member and filled with a non-compressible fluid;an orifice passage through which the pressure-receiving chamber and the equilibrium chamber communicate with each other;a housing space formed within the partition member;a movable member housed in the housing space with liquid pressure of the pressure-receiving chamber applied to one side of the movable member and liquid pressure of the equilibrium chamber applied to another side of the movable member through communication holes formed in walls of the housing space respectively on sides of the pressure-receiving chamber and the equilibrium chamber; andan elastic buffer body supported by the partition member and arranged in the housing space such ...

VIBRATION-DAMPING DEVICE

A vibration-damping device () of the present invention includes a first attachment member (), a second attachment member (), an elastic body (), and a partition member (). In the partition member, a restriction passage () through which the first liquid chamber () and the second liquid chamber () communicate with each other is formed. The restriction passage includes a first communicating portion () which opens to the first liquid chamber, a second communicating portion () which opens to the second liquid chamber, and a main body flow passage () through which the first communicating portion and the second communicating portion communicate with each other. At least one of the first communicating portion and the second communicating portion includes a plurality of fine holes () which are disposed in a flow passage direction of the main body flow passage. A ratio of a projected area or an opening area of a smallest cross section of the fine holes, which occupies per a predetermined area of the first barrier or the second barrier, gradually decreases as it separates from the other of the first communicating portion and the second communicating portion in the flow passage direction. 1. A liquid-sealed type vibration-damping device , comprising:a tubular first attachment member connected to one of a vibration occurrence part and a vibration reception part, and a second attachment member connected to the other;an elastic body which elastically connects both attachment members; anda partition member which partitions a liquid chamber in the first attachment member in which liquid is sealed into a first liquid chamber and a second liquid chamber,a restriction passage through which the first liquid chamber and the second liquid chamber communicate with each other being formed in the partition member,wherein the restriction passage includes a first communicating portion which is formed on a first barrier facing the first liquid chamber and opens to the first liquid chamber, a ...

ENGINE MOUNT

An engine mount is provided that includes a nozzle plate that is mounted between an insulator and a diaphragm to divide the interior into upper and lower fluid chambers to enable the flow of hydraulic fluid between the chambers through a first flow path formed in the nozzle plate according to variation in the volume of the interior. The nozzle plate includes a second flow path and a division cup that has an upwardly protruding portion to push the diaphragm to divide the lower fluid chamber into a main fluid chamber communicating with the flow path and an auxiliary fluid chamber communicating with the second flow path. A partition is formed inside the protruding portion to form a chamber below the auxiliary fluid chamber, and an introduction/discharge aperture is formed in the partition to enable introduction or discharge of air into or from the chamber. 1. An engine mount , comprising:a nozzle plate mounted between an insulator and a diaphragm to divide an interior of the engine mount into an upper fluid chamber and a lower fluid chamber to allow filled hydraulic fluid to flow between the upper fluid chamber and the lower fluid chamber through a first flow path formed in the nozzle plate based on variation in the volume of the interior, wherein the nozzle plate includes a second flow path, an upper end of which communicates with the upper fluid chamber; anda division cup that includes an upwardly protruding portion configured to push the diaphragm from a lower side thereof to divide the lower fluid chamber into a main fluid chamber, which communicates with the first flow path, and an auxiliary fluid chamber, which communicates with the second flow path,wherein a partition is formed inside the protruding portion to form a chamber below the auxiliary fluid chamber, and an introduction/discharge aperture is formed in the partition to allow air to be introduced into or discharged from the chamber.2. The engine mount according to claim 1 , wherein the nozzle plate ...

FLUID-FILLED VIBRATION-DAMPING DEVICE

A fluid-filled vibration-damping device including: a pressure-receiving chamber with a non-compressible fluid filled therein; an equilibrium chamber with the non-compressible fluid filled therein; an orifice passage connecting the pressure-receiving chamber and the equilibrium chamber with each other; a relief configured to open a short-circuit passage by an action of a negative pressure occurring in the pressure-receiving chamber upon input of an impact load so as to connect the pressure-receiving chamber with the equilibrium chamber so that cavitation is suppressed; and at least one leak passage provided at a part of the short-circuit passage in the relief, the at least one leak passage keeping a communication state between the pressure-receiving chamber and the equilibrium chamber with a smaller passage cross section than that of the orifice passage, even when the short-circuit passage is not opened. 1. A fluid-filled vibration-damping device comprising:a pressure-receiving chamber with a non-compressible fluid filled therein;an equilibrium chamber with the non-compressible fluid filled therein;an orifice passage connecting the pressure-receiving chamber and the equilibrium chamber with each other;a relief configured to open a short-circuit passage by an action of a negative pressure occurring in the pressure-receiving chamber upon input of an impact load so as to connect the pressure-receiving chamber with the equilibrium chamber so that cavitation is suppressed; andat least one leak passage provided at a part of the short-circuit passage in the relief, the at least one leak passage keeping a communication state between the pressure-receiving chamber and the equilibrium chamber with a smaller passage cross section than that of the orifice passage, even when the short-circuit passage is not opened.2. The fluid-filled vibration-damping device according to claim 1 , further comprising:a partition disposed dividing the pressure-receiving chamber and the equilibrium ...

FLUID FILLED VIBRATION DAMPING DEVICE

A post-formation filling type fluid filled vibration damping device wherein a first communication groove, which interconnects a plurality of through holes, is formed in a partition member that separates a pressure receiving chamber and an equilibrium chamber, the groove being formed in a surface of the partition member that opposes a flexible membrane. In addition, a second communication groove, which connects an orifice passage and at least one of the plurality of through holes, is formed in the surface of the partition member that opposes the flexible membrane. 1. A fluid filled vibration damping device comprising:a first mounting member and a second mounting member, which are elastically connected by a main rubber elastic body;a pressure receiving chamber formed with a wall partially composed of the main rubber elastic body disposed on one side of a partition member provided on a side of the second mounting member;an equilibrium chamber formed with a wall partially composed of a flexible membrane disposed on an other side of the partition member;an orifice passage formed through the partition member to connect the pressure receiving chamber and the equilibrium chamber with each other;a movable member is arranged in a containing space formed in the partition member such that fluid pressures of the pressure receiving chamber and the equilibrium chamber are exerted on the movable member via a plurality of through holes that penetrate through walls of the containing space; anda fluid injection passage that is communicated with the pressure receiving chamber and the equilibrium chamber with an opening thereof out to an exterior closed,wherein the partition member is formed with a first communication groove opening up to a surface of the partition member facing the flexible membrane to communicate the plurality of through holes with each other, and a second communication groove opening up to the surface of the partition member facing the flexible membrane to ...

LIQUID-FILLED VIBRATION ISOLATING DEVICE

In a liquid-filled vibration isolating device according to a first aspect of the present invention, at least one of a membrane support () and a membrane retainer () has a through hole () partitioned into a plurality of windows by one or more beams () each having a curved or deflected shape in a plane perpendicular to the thickness direction of a partition member (). 1. A liquid-filled vibration isolating device , comprising:a core member to be connected to one of a vibration generating body and a vibration transmitting body;a cylindrical member to be connected to the other body;an elastic member connecting the cylindrical member at one end thereof to the outer periphery of the core member in a fluid-tight manner;a diaphragm attached to the other end of the cylindrical member in a fluid-tight manner;a fluid chamber configured as a space defined inside the diaphragm, the space being filled with an incompressible liquid; anda partition member partitioning the fluid chamber into a primary liquid chamber on the core member side and a secondary liquid chamber on the diaphragm side,the partition member having a membrane, a membrane support supporting the membrane, a membrane retainer for restricting, in cooperation with the membrane support, a deformation amount or a displacement amount of the membrane, and a limit passage communicating the primary liquid chamber with the secondary liquid chamber,the membrane support and the membrane retainer each having a through hole penetrating therethrough in a direction toward the primary and secondary liquid chambers, respectively,wherein at least one of the membrane support and the membrane retainer has the through hole in which three or more beams extending inside the through hole are arranged, and the beams are each extended from the hole edge of the through hole while avoiding the center of the through hole and connected to the intermediate portion of the other beam adjacent thereto, so that the through hole is sectioned into a ...

ENGINE MOUNT AND METHOD OF MANUFACTURING THE SAME

An engine mount may include: a support device; a bracket device; and a vibration proof device which connects the support device and the bracket device, and, in which the vibration proof device may include a nozzle device fastened to the support device, and has a nozzle plate dividing an internal space of the vibration proof device into a first liquid chamber and a second liquid chamber, and a flow path penetrating the nozzle plate; a first insulator defining the first liquid chamber together with the nozzle plate; a first core protruding from the first insulator toward one side, and fastened to the bracket device; a second insulator defining the second liquid chamber together with the nozzle plate; and a second core protruding from the second insulator and fastened to the bracket device. 1. An engine mount comprising:a support device which is fastened to an engine;a bracket device which is fastened to a vehicle body; anda vibration proof device which connects the support device and the bracket device, and attenuates vibration transmitted from the engine to the vehicle body,wherein the vibration proof device includes:a nozzle device which is fastened to the support device, and has a nozzle plate which divides an internal compartment of the vibration proof device into a first liquid chamber and a second liquid chamber, and a flow path which penetrates the nozzle plate;a first insulator which is provided at a first side of the nozzle device, and defines the first liquid chamber together with the nozzle plate;a first core which protrudes from the first insulator toward a first side, and is fastened to the bracket device;a second insulator which is provided at a second side of the nozzle device, and defines the second liquid chamber together with the nozzle plate; anda second core which protrudes from the second insulator toward a second side, and is fastened to the bracket device, andwherein the first insulator and the second insulator are disposed to face each other at ...

HYDRAULIC MOUNT WITH NEGATIVE-PRESSURE VALVE

A hydromount suitable for mounting a motor vehicle engine on a vehicle body includes: a load-supporting spring that supports a mount core, encloses a working chamber, and is supported on an outer ring, an intermediate plate, and a compensation chamber separated from the working chamber by the intermediate plate and delimited by a compensation diaphragm. The compensation chamber and the working chamber are filled with a damping liquid and are connected with each other in a liquid-conducting manner via a damping channel disposed in the intermediate plate. The intermediate plate may include an upper nozzle disk, a lower nozzle disk, and a diaphragm disposed between the upper nozzle disk and the lower nozzle disk. The diaphragm may have an inner circumference, an outer circumference, and at least one valve opening. The at least one valve opening may be disposed completely between the inner circumference and the outer circumference. 19.-. (canceled)10. A hydromount for mounting a motor vehicle engine on a vehicle body , comprising:a load-supporting spring that supports a mount core, encloses a working chamber, and is supported on an outer ring;an intermediate plate; anda compensation chamber which is separated from the working chamber by the intermediate plate and is delimited by a compensation diaphragm,wherein the compensation chamber and the working chamber are filled with a damping liquid and are connected with each other in a liquid-conducting manner via a damping channel disposed in the intermediate plate; the intermediate plate has an upper nozzle disk, a lower nozzle disk, and a diaphragm disposed between the upper nozzle disk and the lower nozzle disk; the diaphragm has an inner circumference, an outer circumference, and at least one valve opening; and the at least one valve opening is disposed completely between the inner circumference and the outer circumference.111. The hydromount according to claim , wherein the lower nozzle disk has an accommodating portion ...

FLUID-FILLED VIBRATION DAMPING DEVICE

A fluid-filled vibration damping device including an inner member, an outer member having a tubular part whose radially inner surface has a quadrangular tube shape, a main rubber elastic body elastically connecting the two members, and a partition having a quadrangular plate shape disposed on a radially inner side of the tubular part. An outer peripheral surface of an axial end of the main rubber elastic body is anchored to the radially inner surface of the tubular part. An annular sealing rubber pressed against an outer peripheral edge of an axial end face of the partition is provided to the axial end of the main rubber elastic body. An axis-perpendicular inside dimension and a width dimension of the sealing rubber are made larger in a diagonal direction of the radially inner surface of the tubular part than in an opposite side direction thereof. 1. A fluid-filled vibration damping device comprising:an inner member;an outer member including a tubular part;a main rubber elastic body elastically connecting the inner member and the outer member to each other;a partition disposed on a radially inner side of the tubular part of the outer member;a primary liquid chamber and an auxiliary liquid chamber formed on opposite sides of the partition, the primary liquid chamber and the auxiliary liquid chamber being filled with a non-compressible fluid; andan orifice passage through which the primary liquid chamber and the auxiliary liquid chamber communicate with each other, the orifice passage being formed in the partition, whereina radially inner surface of the tubular part of the outer member has a quadrangular tube shape,the partition has a quadrangular plate shape corresponding to the radially inner surface of the tubular part, and is disposed on the radially inner side of the tubular part,an outer peripheral surface of an axial end portion of the main rubber elastic body is anchored to the radially inner surface of the tubular part,an annular sealing rubber pressed ...

FLUID-FILLED VIBRATION DAMPING DEVICE

A fluid-filled vibration damping device including an inner member, an outer member having a tubular part, a main rubber elastic body elastically connecting the two members, and a partition disposed on a radially inner side of the tubular part. An axial end portion of the main rubber elastic body is anchored to a radially inner surface of the tubular part and includes a sealing rubber. The partition includes a press-sealing face positioned at an outer peripheral edge of an axial end face thereof, and is pressed against an axial end face of the sealing rubber at the press-sealing face. A seal rib protruding axially outward from the press-sealing face of the partition is more strongly pressed against the axial end face of the sealing rubber such that a fluid-tight sealing is provided axially between the sealing rubber and the partition. 1. A fluid-filled vibration damping device comprising:an inner member;an outer member including a tubular part;a main rubber elastic body elastically connecting the inner member and the outer member to each other;a partition disposed on a radially inner side of the tubular part of the outer member;a primary liquid chamber and an auxiliary liquid chamber formed on opposite sides of the partition, the primary liquid chamber and the auxiliary liquid chamber being filled with a non-compressible fluid; andan orifice passage through which the primary liquid chamber and the auxiliary liquid chamber communicate with each other, the orifice passage being formed in the partition, whereinan axial end portion of the main rubber elastic body is anchored to an radially inner surface of the tubular part of the outer member,the axial end portion of the main rubber elastic body includes a sealing rubber,the partition disposed on the radially inner side of the tubular part of the outer member includes a press-sealing face positioned at an outer peripheral edge of an axial end face thereof, and is pressed against an axial end face of the sealing rubber at ...

ANTIVIBRATION DEVICE

A junction with an antivibration base body joined to its outer periphery is equipped with a chamfer portion where a corner connecting a flange portion with the junction is removed, a base portion connected to the chamfer portion in the axial direction, and an end portion connected to the base portion in the axial direction. At the junction, a first projection plane made by projecting at least the end portion in a first direction orthogonal to the axis is set to be smaller in area than a second projection plane made by projecting at least the end portion in a second direction orthogonal to the axis and the first direction. 1. An antivibration device comprising:a shaft-like first fixture extending along an axis;a sleeve-like second fixture having on at least one side an opening larger than an external shape of the first fixture; andan antivibration base body comprising a rubber elastic body and joined at least to the first fixture and the opening of the second fixture;wherein the first fixture is equipped with a junction having the antivibration base body joined to an outer periphery; anda flange portion connected to the junction and having the antivibration base body joined;wherein the junction is equipped with a chamfer portion where a corner connecting the flange portion and the junction is removed;a base portion connected to the chamfer portion in the axial direction; andan end portion connected to the base portion in the axial direction; andwherein at the junction, a first projection plane made by projecting at least the end portion in a first direction orthogonal to the axis is set to be smaller in area than a second projection plane made by projecting at least the end portion in a second direction orthogonal to the axis and the first direction.2. The antivibration device according to claim 1 , wherein at the base portion claim 1 , the area of the first projection plane and the area of the second projection plane are substantially the same in size.3. The ...

ANTIVIBRATION DEVICE

A junction with an antivibration base body joined to its outer periphery is equipped with a chamfer portion where a corner connecting a flange portion to the junction is removed, a base portion connected to the chamfer portion in the axial direction, and an end portion connected to the base portion in the axial direction. At the base portion, a first projection plane made by being projected in a first direction orthogonal to the axis is substantially the same in area as a second projection plane made by being projected in a second direction orthogonal to the axis and the first direction. At the end portion, the area of the second projection plane is set to be larger than the area of the first projection plane. 1. An antivibration device comprising:a shaft-like first fixture extending along an axis;a sleeve-like second fixture having on at least one side an opening larger than an external shape of the first fixture;an antivibration base body including a rubber elastic body and joined at least to the first fixture and the opening of the second fixture; anda restriction member secured to the second fixture for restraining the relative displacement of the first fixture;wherein the first fixture is equipped with a junction having the antivibration base body joined to an outer periphery;a flange portion connected to the junction and having the antivibration base body joined; anda stopper portion including a rubber elastic body covering the flange portion and facing the restriction member;wherein the junction is equipped with a chamfer portion where a corner connecting the flange portion and the junction is removed;a base portion connected to the chamfer portion in the axial direction; andan end portion connected to the base portion in the axial direction; andwherein at the base portion, a first projection plane made by being projected in a first direction orthogonal to the axis is substantially the same in area as a second projection plane made by being projected in a ...

VIBRATION DAMPING DEVICE

In a vibration damping device (), a plurality of pressure-receiving liquid chambers () of which portions of wall surfaces are constituted of an elastic body () are disposed within the first mounting member (). The pressure-receiving liquid chambers () include a pair of first pressure-receiving liquid chambers () that communicate with each other through a first limiting path (), and a second pressure-receiving liquid chamber () that communicates with an auxiliary liquid chamber () through a second limiting path. The pair of first pressure-receiving liquid chambers () sandwich a second mounting member () therebetween. The second pressure-receiving liquid chamber () is arranged side by side with the second mounting member () in an orthogonal direction (D) orthogonal to both an axial direction of the first mounting member () and a sandwiching direction (D) in which the pair of first pressure-receiving liquid chambers () sandwich the second mounting member (). The second mounting member () extends over the entire length of each of the pair of first pressure-receiving liquid chambers () and the second pressure-receiving liquid chamber () in the axial direction. The first limiting path () does not contact the auxiliary liquid chamber (). According to the vibration damping device (), the performance of the elastic body () can be easily maintained for a prolonged period of time. 1. A vibration damping device comprising:a tubular first mounting member that is coupled to any one of a vibration generating portion and a vibration receiving portion;a second mounting member that is coupled to the other of the vibration generating portion and the vibration receiving portion and is inserted through the first mounting member; andan elastic body that is coupled to both of the mounting members,wherein a plurality of pressure-receiving liquid chambers, in which a liquid is enclosed and of which portions of wall surfaces are constituted of the elastic body, are disposed within the first ...

HYDRAULIC BEARING

A hydraulic mount, in particular for mounting a motor vehicle engine, includes a mount core, a supporting spring comprising an elastomer material, a working chamber delimited by the supporting spring, and a compensation chamber separated from the working chamber by an intermediate plate. The working chamber and the compensation chamber may be filled with hydraulic fluid and connected to each other by a flow transfer duct. The mount core may have a first mount core part and a second mount core part operationally connected to each other by an elastomer body for high-frequency vibration decoupling. The elastomer body has a first elastomer body portion configured to absorb at least a static mount load acting on the mount core, and a second elastomer body portion configured to absorb at least a transverse force acting on the mount core. 1. A hydraulic mount for mounting a motor vehicle engine , the hydraulic mount comprising:a mount core,a supporting spring comprising an elastomer material,a working chamber delimited by the supporting spring, anda compensation chamber separated from the working chamber by an intermediate plate,wherein the working chamber and the compensation chamber are filled with hydraulic fluid and connected to each other by a flow transfer duct,wherein the mount core has a first mount core part and a second mount core part operationally connected to each other by an elastomer body for high-frequency vibration decoupling,wherein the elastomer body has a first elastomer body portion configured to absorb at least a static mount load acting on the mount core, and a second elastomer body portion configured to absorb at least a transverse force acting on the mount core.2. The hydraulic mount according to claim 1 , wherein the hydraulic mount has a transverse stiffness and a longitudinal stiffness claim 1 , wherein the transverse stiffness is at least 60% of the longitudinal stiffness.3. The hydraulic mount according to claim 1 , wherein the first elastomer ...

Vertical Decoupler For A Hydraulic Mount

A vertical decoupler assembly for a hydraulic mount including a first fluid chamber and a second fluid chamber includes a travel plate defining an interior space for receiving a removable vertical decoupler assembly. The vertical decoupler assembly includes an elastically deformable and tubular shaped diaphragm for dampening small vibrations across the mount. The vertical decoupler assembly may include an inner cage and an outer cage, each including a rigid, perforated, tubular wall disposed on either side of the diaphragm for limiting its radial deflection in each direction. The vertical decoupler assembly may include a rigid lower insert having an inverted cup shape with a second rim sealingly engaging the diaphragm and secured to the inner and outer cages. The decoupler diaphragm also includes a flange and a ring-shaped upper insert for nesting within and sealing against a throat at the upper end of the travel plate. 1. A vertical decoupler assembly for a hydraulic mount including a first fluid chamber and a second fluid chamber and comprising:a diaphragm dividing the first fluid chamber from the second fluid chamber and being elastically deformable for dampening small vibrations across the mount, and said diaphragm being generally tubular and radially deformable in response to a pressure differential between the first fluid chamber and the second fluid chamber; andan inner cage with a first wall disposed inside said diaphragm and extending along substantially the entire length thereof and spaced therefrom by a predetermined distance for limiting the inward radial deflection of said diaphragm.2. The vertical decoupler assembly as set forth in wherein one of the first fluid chamber or the second fluid chamber is in fluid communication with the ambient atmosphere.3. The vertical decoupler assembly as set forth in wherein said first wall defines a first perforation therethrough for allowing fluid in the first fluid chamber to contact said diaphragm.4. The vertical ...

HYDRAULIC ENGINE MOUNT

A hydraulic engine mount may include a nozzle plate including upper and lower nozzle plates, wherein each of the upper and lower nozzle plates may include a rim having an annular shape and forming a peripheral portion of the nozzle plate, a hub disposed at a central portion of the nozzle plate, and ribs connecting the rim and the hub while close contacting and supporting the membrane, and wherein the contact area between each rib of the upper nozzle plate and the membrane differs from the contact area between each rib of the lower nozzle plate and the membrane. 1. A hydraulic engine mount comprising:an insulator defining a fluid chamber;a nozzle plate connected to the insulator and dividing the fluid chamber into an upper fluid chamber and a lower fluid chamber, the nozzle plate defining the upper fluid chamber with the insulator and having an orifice to guide flow of a fluid between the upper fluid chamber and the lower fluid chamber;a membrane located between upper and lower nozzle plates of the nozzle plate and defining the upper fluid chamber with the nozzle plate; anda diaphragm connected to the nozzle plate and defining the lower fluid chamber with the nozzle plate,wherein each of the upper and lower nozzle plates includes a rim having an annular shape and forming a peripheral portion of the nozzle plate, a hub disposed at a central portion of the nozzle plate, and ribs connecting the rim and the hub while contacting and supporting the membrane, andwherein a contact area between each rib of the upper nozzle plate and the membrane differs from a contact area between each rib of the lower nozzle plate and the membrane.2. The hydraulic engine mount according to claim 1 ,wherein each of the ribs has a quadrangular cross-sectional shape; andwherein a rib width corresponding to a lower side length of each rib of the upper nozzle plate contacting the membrane in a cross-section of the rib of the upper nozzle plate differs from a rib width corresponding to an upper ...

FLUID-FILLED VIBRATION DAMPING DEVICE

A fluid-filled vibration damping device including: a primary fluid chamber which gives rise to internal pressure fluctuations based on deformation of a main rubber elastic body at times of vibration input; an auxiliary fluid chamber which gives rise to pressure differentials relative to the primary fluid chamber at times of vibration input; an orifice passage which permits a non-compressible sealed fluid filling the primary fluid chamber and the auxiliary fluid chamber to flow between the two fluid chambers; and an insoluble powder mixed in the sealed fluid filling the primary fluid chamber which provides a bubble nucleus and accelerates dispersed generation of bubbles when pressure within the primary fluid chamber is decreased. 1. A fluid-filled vibration damping device comprising:a primary fluid chamber which gives rise to internal pressure fluctuations based on deformation of a main rubber elastic body at times of vibration input;an auxiliary fluid chamber which gives rise to pressure differentials relative to the primary fluid chamber at times of vibration input;an orifice passage which permits a non-compressible sealed fluid filling the primary fluid chamber and the auxiliary fluid chamber to flow between the two fluid chambers; andan insoluble powder mixed in the scaled fluid filling the primary fluid chamber which provides a bubble nucleus and accelerates dispersed generation of bubbles when pressure within the primary fluid chamber is decreased.2. The fluid-filled vibration damping device according to claim 1 , wherein the powder is in a floating state within the sealed fluid in the primary fluid chamber at least at times of vibration input.3. The fluid-filled vibration damping device according to claim 1 , wherein the sealed fluid is hydrophilic claim 1 , and a surface of the powder is water repellent.4. The fluid-filled vibration damping device according to claim 3 , wherein the powder has a specific gravity greater than 1 with the sealed fluid as a ...

ORIFICE MEMBER PLACING TABLE, ORIFICE MEMBER PLACING METHOD, AND LIQUID-SEALED VIBRATION-PROOF MOUNT MANUFACTURING METHOD

A placing table includes a measuring-unit that measures a vertical position of an orifice member placed on the placing table, a position-regulating-portion that engages with a part of the orifice member of a type corresponding to the table, and an orifice-member-determination-unit that determines a placed state and type of the orifice member based on a measurement result obtained by the measuring-unit. When the corresponding type of the orifice member is placed in a correct posture, the position-regulating-portion engages with the orifice member and seats the orifice member on the table over the entire circumference of the lower end portion thereof. When a different type of orifice member is placed or when the corresponding type of orifice member is placed in an incorrect posture, the position-regulating-portion does not engage with the orifice member and lifts at least a part of the orifice member from the table. 1. An orifice member placing table on which an orifice member to be incorporated in a liquid chamber of a liquid-sealed vibration-proof mount is placed , the placing table comprising:a measuring unit that measures a vertical position of the orifice member placed on the placing table;a position regulating portion that engages with a part of the orifice member of a type corresponding to the placing table; andan orifice member determination unit that determines a placed state of the orifice member and a type of the orifice member based on a measurement result obtained by the measuring unit,wherein when the corresponding type of the orifice member is placed in a correct posture, the position regulating portion engages with the orifice member and seats the orifice member on the placing table over an entire circumference of a lower end portion of the orifice member, andwhen a different type of orifice member different, at least, in shape from the corresponding orifice member is placed or when the corresponding type of orifice member is placed in an incorrect ...

SEPARATING DEVICE AND HYDRAULIC MOUNT

A separating device for arrangement between a working chamber and a compensation chamber of a hydraulic mount includes a first nozzle plate and a second nozzle plate which is spaced apart from the first nozzle plate at a first distance. An elastic membrane is arranged between the first nozzle plate and the second nozzle plate. The membrane has at least one bump. The bump has a height with respect to the membrane and is designed in such a way that the bump lies against the first nozzle plate and/or the second nozzle plate in a punctiform manner. A thickness of the membrane and the height of the bump in the uninstalled state together are larger than the first distance, such that the membrane is clamped between the first nozzle plate and the second nozzle plate in a punctiform manner. 1. A separating device for arrangement between a working chamber and a compensation chamber of a hydraulic mount , the separating device comprisinga first nozzle plate,a second nozzle plate which is spaced apart from the first nozzle plate at a first distance, andan elastic membrane arranged between the first nozzle plate and the second nozzle plate, the membrane having at least one bump, the bump having a height with respect to the membrane and being designed in such a way that the bump lies against the first nozzle plate and/or the second nozzle plate in a punctiform manner,wherein a thickness of the membrane and the height of the bump in the uninstalled state together are larger than the first distance, such that the membrane is clamped between the first nozzle plate and the second nozzle plate in a punctiform manner.2. The separating device according to claim 1 , wherein the bump comprises a first side portion projecting from a first side of the membrane and a second side portion projecting from a second side of the membrane.3. The separating device according to claim 1 , wherein the bump is elastic.4. The separating device according to claim 2 , wherein the first side portion and/or ...

FLUID-FILLED VIBRATION DAMPING DEVICE

A fluid-filled vibration damping device including a main rubber elastic body composed of a first rubber elastic body and a second rubber elastic body which are overlapped in an axial direction, and a pair of axis-perpendicular liquid chambers formed between the first and second rubber elastic bodies. A pair of dividing walls which divide the axis-perpendicular liquid chambers are constituted by a first division piece protruding from the first rubber elastic body and a second division piece protruding from the second rubber elastic body being overlapped in a circumferential direction. The first rubber elastic body has a thickness, diameter and spring constant all set larger than those of the second rubber elastic body, while having a tapered shape. With the device mounted on a vibration transmission system, a static support load is input so as to compress the first rubber elastic body. 1. A fluid-filled vibration damping device comprising:a first mounting member and a second mounting member attached to respective members constituting a vibration transmission system;a main rubber elastic body elastically connecting the first and second mounting members to each other;a pressure-receiving chamber whose wall is partially constituted by the main rubber elastic body and which gives rise to internal pressure fluctuations at times of vibration input in an axial direction;an equilibrium chamber whose wall is partially constituted by a flexible film and which allows volume changes, the pressure-receiving chamber and equilibrium chamber being filled with a non-compressible fluid;a first orifice passage which connects the pressure-receiving chamber and the equilibrium chamber to each other;a pair of axis-perpendicular liquid chambers whose walls are partially constituted by the main rubber elastic body and which are formed on opposite sides of the first mounting member in an axis-perpendicular direction, the axis-perpendicular liquid chambers being filled with the non- ...

VIBRATION-DAMPING DEVICE

A vibration-damping device () of the invention includes a tubular first attachment member () and a second attachment member (); an elastic body (); a partitioning member () that forms a main liquid chamber (), a first auxiliary liquid chamber (), and a second auxiliary liquid chamber (); a first diaphragm () that constitutes a portion of the wall surface of the first auxiliary liquid chamber (); and a second diaphragm () that constitutes a portion of the wall surface of the second auxiliary liquid chamber () and that has a smaller deformation resistance than the deformation resistance of the first diaphragm (). The partitioning member () is provided with an idle orifice () that allows the main liquid chamber () and the first auxiliary liquid chamber () to communicate with each other and that produces resonance with respect to the input of an idle vibration, and a shake orifice () that allows the main liquid chamber () and the second auxiliary liquid chamber () to communicate with each other and that produces resonance with respect to the input of a shake vibration. An adjustment chamber () having an interior capable of being decompressed or compressed with respect to standard pressure or being open so as to be capable of being blocked with respect to the outside, is provided adjacent to the second auxiliary liquid chamber () with the second diaphragm () interposed therebetween. By including the configuration as described above, damping characteristics against vibrations are exhibited over a wide range of frequencies. 1. A vibration-damping device comprising:a tubular first attachment member coupled to any one of a vibration generating part and a vibration receiving part, and a second attachment member coupled to the other thereof;an elastic body coupling both of the attachment members;a partitioning member that is fitted into the first attachment member and forms a main liquid chamber having the elastic body as a portion of the wall surface thereof, and a first ...

ANTI-VIBRATION DEVICE

An anti-vibration device is provided with: an anti-vibration device body, in which an insulator is disposed between a first attachment member and a second attachment member; and a bracket, which has opposing wall portions and to which the anti-vibration device body is fixed by press-fitting via the second attachment member between the wall portions. The second attachment member is provided with interlocking portions that interlock with the wall portions and restrain the anti-vibration device body from moving in the direction opposite the press-fitting direction when the anti-vibration device body is press-fitted to the bracket. Each of the interlocking portions is configured so as to have an arm part extending in the direction opposite the press-fitting direction, and a hook part provided to the extension-direction end of the arm part and caused to interlock with a to-be-interlocked part of one of the wall portions. 1. An anti-vibration device comprising:an anti-vibration device body in which an insulator is interposed between a first attachment member and a second attachment member; anda bracket including facing wall parts between which the anti-vibration device body is fixed by press-fitting via the second attachment member, whereinthe second attachment member is provided with locking parts that are locked to the wall parts to restrict movement of the anti-vibration device body in a direction opposite to a press-fitting direction in which the anti-vibration device body is press-fitted to the bracket, andeach of the locking parts includes an arm part extending in the direction opposite to the press-fitting direction in which the anti-vibration device body is press-fitted to the bracket, and a hook part provided at an end part of the arm part in the direction in which the arm part extends and locked to a part to be locked provided on one of the wall parts.2. The anti-vibration device according to claim 1 , whereinthe part to be locked to which the hook part of each ...

VIBRATION ISOLATION DEVICE

A partition member () of the present invention includes a membrane () which forms a part of a partition wall of a main liquid chamber (), and a first orifice passage () which communicates with the main liquid chamber () and opens toward a sub liquid chamber (), and a flow resistance of a liquid in a portion positioned on the main liquid chamber () side and the flow resistance of a liquid in a portion () positioned on the sub liquid chamber () side are different from each other in the first orifice passage (). 1. A vibration isolation device comprising:a cylindrical first mounting member connected to one of a vibration generating unit and a vibration receiving unit and a second mounting member connected to the other thereof;an elastic body connecting the first mounting member and the second mounting member; anda partition member which partitions a liquid chamber in the first mounting member into a main liquid chamber including the elastic body as a part of a partition wall thereof and a sub liquid chamber, whereinthe partition member includes:a membrane which forms a part of the partition wall of the main liquid chamber; anda first orifice passage which communicates with the main liquid chamber and opens toward the sub liquid chamber, anda flow resistance of a liquid in a portion positioned on the main liquid chamber side and a flow resistance of a liquid in a portion positioned on the sub liquid chamber side are different from each other in the first orifice passage.2. The vibration isolation device according to claim 1 , wherein the flow resistance of the liquid in the portion positioned on the main liquid chamber side is higher than the flow resistance of the liquid in the portion positioned on the sub liquid chamber side in the first orifice passage.3. The vibration isolation device according to claim 1 , wherein the flow resistance of the liquid in the portion positioned on the sub liquid chamber side is higher than the flow resistance of the liquid in the ...

HYDRAULIC MOUNT

A hydraulic mount having an upper liquid chamber defined above a nozzle plate mounted therein and a lower liquid chamber defined below the nozzle plate, and configured such that hydraulic liquid filled therein flows through a path defined in the nozzle plate to the upper and lower liquid chambers may include a disc-shaped membrane, and a spring having a shape of a ring into which an edge of the membrane is fitted, and mounted in a mounting recess that is formed in the nozzle plate, in which the spring includes a body portion to which the membrane is fastened, an upper ring portion provided above the body portion, and a lower ring portion provided below the body portion. 1. A hydraulic mount having an upper liquid chamber defined above a nozzle plate mounted therein and a lower liquid chamber defined below the nozzle plate , and configured such that hydraulic liquid filled therein flows through a path defined in the nozzle plate to the upper and lower liquid chambers , the hydraulic mount comprising:a disc-shaped membrane; anda spring having a shape of a ring into which an edge of the membrane is fitted, and mounted in a mounting recess that is formed in the nozzle plate, a body portion to which the membrane is fastened;', 'an upper ring portion provided above the body portion; and', 'a lower ring portion provided below the body portion, a plurality of upper ribs being formed between the upper ring portion and the body portion to be elastically deformed and spaced apart from each other, and a plurality of lower ribs being formed between the lower ring portion and the body portion to be elastically deformed and spaced apart from each other., 'wherein the spring comprises2. The hydraulic mount of claim 1 , wherein each of the upper and lower ribs is disposed to be inclined at a predetermined angle.3. The hydraulic mount of claim 2 , wherein the spring comprises a plastic material that is elastically deformable.4. The hydraulic mount of claim 2 , wherein each of the ...

ANTI-VIBRATION DEVICE

An anti-vibration device () of the present invention includes a cylindrical first attaching member () and a second attaching member (), an elastic body (), and a partition member () which is configured to partition a liquid chamber () in the first attaching member into a main liquid chamber () and an auxiliary liquid chamber (). The partition member includes a membrane () that forms a part of the partition wall of the main liquid chamber, and an intermediate chamber () which is located on a side opposite to the main liquid chamber with the membrane therebetween and has a membrane as a part of a partition wall of the main liquid chamber. In the partition member, a first orifice () through which the main liquid chamber and the auxiliary liquid chamber communicate with each other, and a second orifice () through which the intermediate chamber and the auxiliary liquid chamber communicate with each other, and a common opening () which forms an opening on the auxiliary liquid chamber side of each of the first orifice () and the second orifice () are formed. 1. An anti-vibration device comprising:a cylindrical first attaching member connected to one of a vibration generation unit and a vibration reception unit, and a second attaching member connected to the other thereof;an elastic body which connects the first attaching member and the second attaching member; anda partition member which is configured to partition a liquid chamber in the first attaching member into a main liquid chamber having the elastic body as a part of a partition wall of the main liquid chamber and an auxiliary liquid chamber,wherein the partition member includesa membrane which forms a part of the partition wall of the main liquid chamber, andan intermediate chamber which is located on a side opposite to the main liquid chamber with the membrane interposed therebetween, and has the membrane as a part of the partition wall of the main liquid chamber, andin the partition member,a first orifice through ...

VIBRATION-DAMPING DEVICE

The vibration-damping device includes a tubular first attachment member; a second attachment member; an elastic body that couples the first attachment member and the second attachment member to each other; and a partition member that partitions a liquid chamber within the first attachment member into a main liquid chamber having the elastic body in a portion of a barrier wall thereof, and an auxiliary liquid chamber. The partition member includes a membrane; a first orifice passage that includes a main liquid chamber-side passage, and an opposite liquid chamber-side passage; and a damping force difference increasing part that restrains any one of swelling deformation of the membrane toward the main liquid chamber side and swelling deformation of the membrane toward the opposite liquid chamber and increases a difference between a damping force generated when a bound load is input and a damping force generated when a rebound load is input. 1. A vibration-damping device comprising:a tubular first attachment member that is coupled to any one of a vibration generating part and a vibration receiving part, and a second attachment member that is coupled to the other thereof;an elastic body that couples the first attachment member and the second attachment member to each other; anda partition member that partitions a liquid chamber within the first attachment member into a main liquid chamber having the elastic body in a portion of a barrier wall thereof, and an auxiliary liquid chamber, a membrane that forms a portion of the barrier wall of the main liquid chamber,', 'a first orifice passage that is configured to allow the main liquid chamber and an opposite liquid chamber, which is located opposite to the main liquid chamber side with the membrane therebetween and has the membrane as a portion of a barrier wall thereof, to communicate with each other and in which a flow resistance of a liquid in an opposite liquid chamber-side passage located on the opposite liquid chamber ...

HYDRAULIC BEARING

The invention is directed to a hydraulic bearing which includes two connecting pieces, an annular rubber-elastic spring, a hydraulic chamber unit made of a working chamber and a compensating chamber and a partition unit having a connecting channel between the working chamber and the compensating chamber. The partition unit is configured as a disc and is disposed within the vertical elevation of the annular rubber-elastic spring and one of the connecting pieces. 19-. (canceled)10. A hydraulic bearing interposed between a sprung body and an unsprung mass comprising:a lower annular connecting piece connecting said hydraulic bearing to said unsprung mass;an upper annular connecting piece connecting said hydraulic bearing to said sprung body;an annular rubber-elastic spring defining a vertical structural elevation and being connected to said unsprung mass via said lower annular connecting piece and to said sprung body via said upper annular connecting piece;a hydraulic chamber unit including a working chamber and a compensating chamber;said hydraulic chamber unit being surrounded by said annular rubber-elastic spring and/or said annular connecting pieces so as to cause the volume of said working chamber filled with a damping medium to change in response to a deflection of said hydraulic bearing;a partition unit disposed between said working chamber and said compensating chamber;said partition unit including a disc defining a disc plane and said disc having a connecting channel formed in said plane connecting said working chamber with said compensating chamber;said annular connecting pieces having respective vertical structural elevations;said partition unit being arranged within said vertical structural elevation of said annular rubber-elastic spring and the vertical structural elevation of one of said annular connecting pieces;said one annular connecting piece having an end facing away from said partition unit;said partition unit being disposed within said one annular ...

ENGINE MOUNT HAVING NOZZLE PLATE EMBEDDED WITH DUAL MEMBRANE

An engine mount for a vehicle is provided which attenuates vibration generated when an engine of the vehicle operates. The engine mount includes a main rubber body which supports a core and an inner casing which fixes the main rubber body to a housing. A nozzle plate is mounted in the inner casing and an upper membrane and a lower membrane are attached thereto. The nozzle plate includes a lower plate and an upper plate that is inserted and coupled into the lower plate. The upper membrane is attached to a top plate of the upper plate and the lower membrane is attached to a bottom plate of the lower plate. 1. An engine mount for a vehicle , comprising:a main rubber body which supports a core of the engine mount;an inner casing which fixes the main rubber body to a housing of the engine mount; anda nozzle plate which is mounted in the inner casing and to which an upper membrane and a lower membrane are attached,wherein the nozzle plate includes a lower plate and an upper plate inserted and coupled into the lower plate, andwherein the upper membrane is attached to a top plate of the upper plate, and a lower membrane is attached to a bottom plate of the lower plate.2. The engine mount of claim 1 , further comprising:a catching projection formed inside a sidewall of the upper plate;an insertion piece extending from the catching projection, wherein the insertion piece is inserted into an insertion groove formed in a body of the upper membrane;a catching projection formed inside a sidewall of the lower plate andan insertion piece extending from the catching projection, wherein the insertion piece is inserted into an insertion groove formed in a body of the lower membrane.3. The engine mount of claim 1 , wherein dynamic characteristics of the engine mount are adjusted by adjusting thicknesses of the upper membrane and the lower membrane.4. The engine mount of claim 1 , wherein a hollow space portion is formed between the upper membrane and the lower membrane claim 1 , and ...

Vehicle Unit Fastening Subassembly and Modular System

A vehicle unit fastening subassembly for vibratory fastening of a vehicle unit, in particular of a motor and/or transmission, to a vehicle structure of a motor vehicle, has at least one first carrier element on the unit side and a second carrier element on the vehicle side. The first carrier element and the second carrier element are connected to each other by a vibration damper, which is arranged at least in part in the first carrier element or in the second carrier element. The vibration damper is fluidically connected to a hydraulic unit by a flow channel, which is arranged adjacent to the vibration damper in a plan view of the vibration damper. A modular system is provided having a vibration damper and a hydraulic unit, wherein the vibration damper is usable either together with the hydraulic unit as a hydraulic vibration damper or without the hydraulic unit as a conventional bearing. 111.-. (canceled)12. A vehicle unit fastening subassembly for vibratory fastening of a vehicle unit in a vehicle structure of a motor vehicle , comprising:a unit-side first carrier element;a vehicle-side second carrier element;a vibration damper arranged at least partially in the first carrier element or in the second carrier element, wherein the first carrier element and the second carrier element are connected to each other by the vibration damper;a hydraulic unit; anda flow channel fluidically connecting the vibration damper to the hydraulic unit, whereinthe hydraulic unit, when the vibration damper is viewed from above, is arranged adjacent the vibration damper.13. The vehicle unit fastening subassembly according to claim 12 , whereinthe vibration damper comprises a bearing core and a suspension spring.14. The vehicle unit fastening subassembly according to claim 13 , whereinthe suspension spring at least partially surrounds the bearing core.15. The vehicle unit fastening subassembly according to claim 12 , whereinthe carrier element which receives the vibration damper has two ...

LIQUID-SEALED VIBRATION DAMPING DEVICE

A liquid-sealed vibration damping device is provided that allows an outer cylindrical member to have a substantially uniform interference margin in the circumferential direction, while improving an assembling property. A second mounting member mounted on a non-vibration source includes: a first frame in a cylindrical shape that is connected to a lower portion of an insulator; a second frame in a cylindrical shape that holds a partition member arranged below the insulator; and a connector that connects the first frame with the second frame. The connector includes: engaging parts that are arranged on the first frame; and elastic hook parts that are arranged on the second frame. The elastic hook parts are arranged at intervals on each of main frame parts in the circumferential direction thereof, and the elastic hook parts arranged on corners have lower rigidity than those arranged on the main frame parts. 1. A liquid-sealed vibration damping device comprising:a first mounting member that is mounted on a vibration source;a second mounting member that is mounted on a non-vibration source; andan insulator that is interposed between the first and second mounting members, a first frame in a cylindrical shape that is connected to a lower portion of the insulator;', 'a second frame in a cylindrical shape that holds a partition member which is arranged below the insulator; and', 'a connector that connects the first frame with the second frame,, 'wherein the second mounting member includes engaging parts that are arranged on either one of the first and second frames; and', 'elastic hook parts that are arranged on the other one of the first and second frames to engage with the engaging parts, and, 'wherein the connector includes a pair of main frame parts in a linear shape that faces each other; and', 'a pair of side frame parts that connects ends of the main frame parts,, 'the first or second frame, which is arranged with the elastic hook parts, includeswherein the elastic hook ...

VIBRATION ISOLATOR

A vibration isolator () includes a first attachment member (), a second attachment member (), an elastic body (), and a partition member () configured to partition a liquid chamber in the first attachment member in which a liquid (L) is sealed into a first liquid chamber () and a second liquid chamber (). A communicating passage () configured to communicate the first liquid chamber with the second liquid chamber is provided in the partition member. A flow changing protrusion () is provided at an inner circumferential surface () of the communicating passage. A guide surface () opposite to the communicating passage and intersecting the axial direction (O) of the communicating passage is provided at the flow changing protrusion. A passing hole () which is open toward both sides in the axial direction is formed by a projecting end () of the flow changing protrusion and another place on the inner circumferential surface () of the communicating passage. The flow changing protrusion changes the flow of the liquid flowing in the communicating passage and reaching the guide surface toward the projecting end. The guide surface is formed in a concave curved surface shape which is recessed in the axial direction. 1. A vibration isolator in which a portion of a wall surface in at least one of the group consisting of a first liquid chamber and a second liquid chamber is formed using an elastic body , the vibration isolator comprising:a first tubular attachment member coupled to one of the group consisting of a vibration generating part and a vibration receiving part;a second attachment member coupled to the other of the vibration generating part and the vibration receiving part;the elastic body configured to couple together the first attachment member and the second attachment member; anda partition member configured to partition a liquid chamber in the first attachment member in which a liquid is sealed into the first liquid chamber and the second liquid chamber,wherein a ...

HYDRAULIC ENGINE MOUNT FOR VEHICLE

An engine mount includes a nozzle plate mounted between an insulator and a diaphragm so as to divide an interior into an upper liquid chamber and a lower liquid chamber, and an annular flow path formed in the nozzle plate so that an encapsulated hydraulic liquid flows between the upper liquid chamber and the lower liquid chamber, the nozzle plate being opened at an upper side of the flow path; a shielding member which has two or more shielding plates arranged to cover the upper side of the flow path; an adjusting bolt which is rotatably mounted in a core coupled to the insulator; and a connector, in which the shielding plates are folded or unfolded in accordance with a rotation of the adjusting bolt, and a size of an upper flow path hole is determined depending on a state in which the shielding plates are folded or unfolded. 1. An engine mount for a vehicle , comprising:a nozzle plate mounted between an insulator and a diaphragm so as to divide an interior into an upper liquid chamber and a lower liquid chamber, and an annular flow path formed in the nozzle plate so that an encapsulated hydraulic liquid flows between the upper liquid chamber and the lower liquid chamber, the nozzle plate being opened at an upper side of the flow path;a shielding member which has two or more shielding plates connected so as to be folded or unfolded so that a length of the shielding member is changed, the shielding member being mounted on the nozzle plate so as to cover the upper side of the flow path;an adjusting bolt which is rotatably mounted in a core coupled to the insulator; anda connector which has one end connected to the adjusting bolt, and the other end connected to any one of the shielding plates,wherein the shielding plates are folded or unfolded in accordance with a rotation of the adjusting bolt, and a size of an upper flow path hole, which is formed at one side end of the flow path and communicates with the upper liquid chamber, is determined depending on a state in ...

Vibration-proof device

A vibration-proof device includes a tubular first attaching member connected to one of a vibration generation part and a vibration reception part, and a second attaching member connected to the other thereof; an elastic body configured to connect both the attaching members to each other; a partition member configured to divide a liquid chamber in the first attaching member in which liquid is sealed into a main liquid chamber having the elastic body as a part of a wall surface, and an auxiliary liquid chamber; and a movable member ( 40 ) accommodated in an accommodation chamber provided in the partition member so as to be deformable or displaceable in an axial direction of the first attaching member. An inclined protrusion part ( 42 ) is formed on the outer circumferential edge portion of the movable member ( 40 ). A width (W) in the radial direction of a root part of the inclined protrusion part is smaller than a length (H) in the axial direction from the root part to a distal end portion of the inclined protrusion part.

Fluid-filled vibration-damping device

A fluid-filled vibration-damping device including: two elastically-connected attachment members; two liquid chambers divided by a partitioner having a storing space; an elastic mover disposed in the storing space and having a support supported by the partitioner; a positioner provided on at least one of radial inside and outside of the support, partially in a peripheral direction of the support, in abutment against a peripheral wall face of the storing space; a valve separate from the positioner in the peripheral direction, and the peripheral wall face in opposition; an axially-thin part connecting the positioner and the valve to the support in a displaceable manner; a communication passage connecting the liquid chambers formed between the peripheral wall face and the valve; and a switch configured to obstruct the communication passage by abutment of the valve against the peripheral wall face.

LIQUID SEALED VIBRATION ISOLATING DEVICE

A liquid sealed vibration isolating device is integrally provided with an elastic movable diaphragm and a relief valve. A pair of parallel straight line sections is on opposite sides of a circular elastic partition member. The elastic movable diaphragm includes a center of the elastic partition member and is surrounded by a pair of opposed circular arc sections and a pair of straight line sections formed by cutting an outer circumferential part of the elastic partition member. The relief valve is radially outward of the straight line section of the elastic partition member. A part of the elastic movable diaphragm reaches the circular arc section corresponding to the outer circumferential part of the elastic partition member so as to be increased in area as much as possible to absorb an internal pressure of a primary liquid chamber and to achieve low dynamic spring. 1. A liquid sealed vibration isolating device comprising:a partition member for partitioning a liquid chamber into a primary liquid chamber and a secondary liquid chamber,a damping orifice being arranged in the partition member to provide communication between the primary liquid chamber and the secondary liquid chamber,an elastic partition member being provided in the partition member, the elastic partition member being integrally provided with an elastic movable diaphragm which absorbs an internal pressure of the primary liquid chamber and a relief valve which is arranged in an outer circumferential part, anda leak passage to be opened and closed by the relief valve, being arranged in the partition member to provide communication between the primary liquid chamber and the secondary liquid chamber,wherein the elastic movable diaphragm is surrounded by an annular rigid frame section of noncircular shape formed by a curved line portion and a straight line section and is formed in a noncircular shape, and the relief valve is provided in a part located outwardly of the straight line section and formed in an ...

VIBRATION-DAMPING DEVICE

A vibration-damping device () includes a first attachment member () having a cylindrical shape connected to any one of a vibration generating unit and a vibration receiving unit, a second attachment member () connected to the other unit, an elastic body () configured to connect both of the attachment members, and a partition member () configured to divide a liquid chamber () in the first attachment member () into a main liquid chamber () having a wall surface formed partly from the elastic body (), and a subsidiary liquid chamber (). In the partition member (), an accommodating chamber () in communication with the main liquid chamber () and the subsidiary liquid chamber () through communication holes (A, B) opened in an axial direction, an elastically deformable membrane () accommodated in the accommodating chamber () and separately exposed to the main liquid chamber () and the subsidiary liquid chamber () through the communication holes (A, B), and restriction sections (A, B) disposed more outside in the axial direction than the communication holes (A, B) and overlapping the membrane () through the communication holes (A, B) in the axial direction are installed. According to the vibration-damping device (), performance of the membrane () can be maintained for a long period of time. 1. A vibration-damping device comprising:a first attachment member having a cylindrical shape connected to any one of a vibration generating unit and a vibration receiving unit, and a second attachment member connected to the other unit;an elastic body configured to connect both of the attachment members; anda partition member configured to divide a liquid chamber in the first attachment member, in which liquid is sealed, into a main liquid chamber having a wall surface formed partly from the elastic body, and a subsidiary liquid chamber,wherein, in the partition member,an accommodating chamber in communication with the main liquid chamber and the subsidiary liquid chamber through ...

FLUID-FILLED VIBRATION DAMPING DEVICE

A fluid-filled vibration-damping device including: a first mounting member; a second mounting member; a main rubber elastic body elastically connecting the two mounting members; a fluid chamber whose wall is constituted by the main rubber elastic body at a portion and by a flexible film at another portion, the fluid chamber being filled with a non-compressible fluid; a fixation member being attached to an outer peripheral rim of the flexible film and being disposed inside or outside the tubular second mounting member such that the fixation member is superposed to the second mounting member in an axis-perpendicular direction; an insertion hole formed in the second mounting member and the fixation member; and a positioning member inserted through the insertion hole so as to relatively position the second mounting member and the fixation member at a scaling position by axial locking. 1. A fluid-filled vibration-damping device comprising:a first mounting member;a second mounting member;a main rubber elastic body elastically connecting the first and second mounting members;a fluid chamber for which a portion of its wall is constituted by the main rubber elastic body, while another portion of its wall is constituted by a flexible film, the fluid chamber being filled with a non-compressible fluid;a fixation member being attached to an outer peripheral rim of the flexible film and being disposed internally or externally in relation to the tubular second mounting member such that the fixation member is superposed to the second mounting member in an axis-perpendicular direction;an insertion hole formed in the second mounting member and the fixation member; anda positioning member inserted through the insertion hole so as to position the second mounting member and the fixation member at a sealing position relative to each other by axial locking.2. The fluid-filled vibration-damping device according to claim 1 , further comprising a partition member provided for dividing the ...

VIBRATION PREVENTION DEVICE

A vibration prevention device i ncludes a vehicle body-side bracket having an inner space and a vibration prevention member disposed in the inner space. A press-fitting surface and a press-fitting groove are formed on an inner surface of the vehicle body side bracket. The press-fitting surface and the press-fitting groove extend from an edge portion of the inner space opening through an outer surface of the bracket, The vibration prevention member has a first attachment member, a second attachment member, and an insulator disposed between the first attachment member and the second attachment member. The second attachment member has an abutting portion pressed against the press-fitting surface and an attachment portion press-fitted into the press-fitting groove.

ANTI-VIBRATION DEVICE

An anti-vibration sleeve comprising an inner strength member and an outer strength member connected by an elastomeric body. Two hydraulic chambers, defined between the elastomeric body and the outer strength member, are connected by a throttled channel and by a bypass channel which is normally closed by a flap belonging to the elastomeric body. An intermediate strength member, embedded in the elastomeric body, has two rings connected by a first spacing member disposed in register with the bypass channel. The first spacing member has two supporting portions separated by an opening which is in register with the flap. 1. An anti-vibration device comprising:an inner strength member;an outer strength member surrounding the inner strength member, wherein the outer strength member is tubular and centered on a central axis;an elastomeric body disposed between the inner strength member and outer strength member such that vibratory movements between the inner strength member and the outer strength member generate deformations of the elastomeric body;at least two hydraulic chambers defined between the elastomeric body and the outer strength member, said hydraulic chambers being substantially diametrically opposite with respect to said central axis;a throttled channel connecting said at least two hydraulic chambers;a bypass channel connecting said at least two hydraulic chambers independently of the throttled channel, said bypass channel being defined between the elastomeric body and the outer strength member; and two rings surrounding the central axis and being on opposite sides of said at least two hydraulic chambers;', 'at least a first spacing member connecting said two rings and disposed in register with said bypass channel, said first spacing member being close to an outer surface of said elastomeric body,, 'an intermediate strength member which is embedded in said elastomeric body, said intermediate strength member havingwherein said at least two hydraulic chambers, ...

VIBRATION DAMPING DEVICE

A vibration damping device () includes a tubular metal bracket (), a first attachment member (), a second attachment member (), an elastic body (), a partition member (), and a diaphragm (). A fixed portion () fixed to a fixing portion () of the metal bracket is formed in the second attachment member. A gap (S S) is provided between a portion of an outer circumferential surface of the second attachment member except for the fixed portion, and a portion of an inner circumferential surface of the metal bracket except for the fixing portion, and a second seal portion () is provided between the fixed portion and the fixing portion. 1. A vibration damping device comprising:a tubular metal bracket which is connected to any one of a vibration generating portion and a vibration receiving portion;a first attachment member which is connected to the other of the vibration generating portion and the vibration receiving portion;a tubular second attachment member which is inserted into the metal bracket;an elastic body which connects the first attachment member and the second attachment member to each other;a partition member which partitions a liquid chamber in the second attachment member into a main liquid chamber having the elastic body as a portion of a partition wall and an auxiliary liquid chamber; anda diaphragm which constitutes a portion of a partition wall of the auxiliary liquid chamber,wherein one of both end opening portions of the second attachment member in an axial direction is closed by the elastic body and the other thereof is closed by the diaphragm,wherein a fixing portion which fixes the second attachment member is formed on the metal bracket,wherein a fixed portion which is fixed to the fixing portion of the metal bracket is formed on the second attachment member,wherein a gap is provided between a portion of an outer circumferential surface of the second attachment member except for the fixed portion, and a portion of an inner circumferential surface of ...

LIQUID SEALED MOUNT

In liquid, an elastic main body member, a partition member, and a diaphragm are inserted into an outer cylinder one by one, and the diaphragm is held down by a fixing ring and fixed by a claw. Then, the liquid adheres onto outer circumferential surfaces of the partition member and the diaphragm. Therefore, a first special seal for adhered liquid is provided in an elastic partition member of the partition member and also a second special seal for adhered liquid and a third special seal for adhered liquid are provided in the diaphragm, so as to provide a seal between each of the outer circumferential surfaces of the partition member and the diaphragm and the fixing ring, so that the adhered liquid is prevented from leaking outwardly as leaked liquid. 1. A liquid sealed mount comprising:an elastic main body member,a diaphragm,a liquid chamber formed between the elastic main body member and the diaphragm,a partition member for partitioning the liquid chamber into a primary liquid chamber and a secondary liquid chamber,an orifice passage providing communication between the primary liquid chamber and the secondary liquid chamber, anda special seal for adhered liquid providing a seal between each of the partition member and the diaphragm and a member which covers each exterior of the partition member and the diaphragm, so as to prevent the adhered liquid which is adhered on the partition member and the diaphragm at the time of assembly from leaking out, wherein the special seal for adhered liquid is provided at least in the diaphragm.2. The liquid sealed mount according to claim 1 , further comprising a first special seal for adhered liquid which forms one of the special seal for adhered liquid claim 1 , wherein the first special seal for adhered liquid is provided in the partition member.3. The liquid sealed mount according to claim 2 , wherein the partition member includes an elastic partition member of an elastic member claim 2 , and the first special seal for adhered ...

MULTI-STAGE DAMPING ASSEMBLY

An assembly for multi-stage damping comprising a damping unit including a decoupler defining an annular zone surrounding a circular zone . The annular zone extends inwardly from an outer ring to define a ring shape for flexing with the circular zone in a first mode to maximize the potential volume of displacement between a first chamber and a second chamber . Additionally, the assembly provides for flexing the annular zone independently of the circular zone in a second mode to decrease the potential volume of displacement of the decoupler between the first chamber and the second chamber . The decoupler includes a plurality of rings extending axially from a first surface and a second surface for defining an axial travel limit for the annular zone 1. An assembly for multi-stage damping comprising;{'b': 20', '22', '24', '26, 'a damping unit () including a wall () defining an inner surface and an outer surface extending about an axis (A) between a base portion () and a top portion ();'}{'b': 28', '24', '26', '22', '30', '28', '26', '32', '28', '24', '28', '34, 'a partition () spaced between said base portion () and said top portion () and extending from said inner surface of said wall () defining a first chamber () between said partition () and said top portion () and a second chamber () between said partition () and said base portion (), said partition () having an internal holding wall () defining a holding chamber;'}{'b': 36', '38', '38', '34', '36', '40', '42', '30', '32, 'a decoupler () is disposed within said holding chamber and has a radius extending between a center point (C) and an outer ring (), said outer ring () engaging said internal holding wall (), said decoupler () having a first surface () opposite a second surface () for preventing fluid transfer between said chambers (, );'}{'b': 36', '68', '30', '32, 'said decoupler () defining a circular zone () extending about said center point (C) for flexing between said chambers (, ); and'}{'b': 36', '70', '68', ...

FLOW SUPPRESSION DEVICE

A flow suppression device adapted to be connected to a high pressure fluid system includes an outer flow containment member of a porous and flexible construction. The outer flow containment member has an upstream end and a downstream end opposite the upstream end. The upstream end includes an inlet opening adapted to receive a flow stream of pressurized fluid from the high pressure fluid system and the downstream end being substantially closed. The flow suppression device also includes a primary inner flow containment member of a porous and flexible construction contained within the outer flow containment member. The primary inner flow containment member has an upstream end with an inlet opening adjacent the inlet opening of the outer flow containment member and a downstream end opposite the upstream end of the primary inner flow containment member. 1. A flow suppression device adapted to be connected to a high pressure fluid system , comprising:an outer flow containment member of a porous and flexible construction, the outer flow containment member having an upstream end and a downstream end opposite the upstream end, the upstream end including an inlet opening adapted to receive a flow stream of pressurized fluid from the high pressure fluid system and the downstream end being substantially closed; anda primary inner flow containment member of a porous and flexible construction contained within the outer flow containment member, the primary inner flow containment member having an upstream end with an inlet opening adjacent the inlet opening of the outer flow containment member and a downstream end opposite the upstream end of the primary inner flow containment member.2. The flow suppression device according claim 1 , wherein the outer flow containment member is composed of a porous fabric bag.3. The flow suppression device according claim 1 , wherein the downstream end of the outer flow containment member includes at least one opening with a fastener.4. The flow ...

Vibration isolating device

The invention is a liquid filled type vibration isolating device (10) which includes a partition member (16) that partitions a liquid chamber (19) within a first attachment member (11) filled with a liquid into a first liquid chamber (14) and a second liquid chamber (15), and in which a restricted passage (24), which is configured to allow the first liquid chamber and the second liquid chamber to communicate with each other, is formed in the partition member. The restricted passage includes a first communication part (26) opening to the first liquid chamber, a second communication part opening to the second liquid chamber, and a main flow passage (25) that allows the first communication part and the second communication part to communicate with each other. At least one of the first communication part and the second communication part includes a plurality of pores (26a) that penetrate a first barrier (38) facing the first liquid chamber or the second liquid chamber. At least one pore of the plurality of pores has a flow passage length of the pore that is 3 times or more the minimum value of the internal diameter of the pore.

Patent DE4126673C2

流体入りエンジンマウント

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Hydraulic engine mount

본 발명은 하이드로 마운트를 구성하는 두개 이상의 내부부품을 연관되는 부품끼리 결합하여 부품 수를 줄이고, 또 부품 결합 시 발생하는 누유를 방지할 수 있는 하이드로 엔진마운트로, 브래킷 하우징(20)의 내부에서, 중앙에 엔진과 체결되는 센터볼트(11)가 인입되는 코어(10)와, 상기 코어의 외주면에 형성되는 러버(30); 및 상기 코어(10) 및 러버(30)와 맞닿아 내부에 액체가 봉입된 상부액실(40); 및 상부액실(40)의 하부에 위치하여 내부에 액체가 봉입된 하부액실(50); 및 상기 하부액실(50)의 하단에 위치하는 다이아프램(60)과 상기 상부액실 및 하부액실 사이를 구획하며 노즐 상판과 노즐 하판으로 구성되는 오리피스 어셈블리(OA)를 포함하되, 상기 러버(30) 하부에 유로(110)가 형성된 노즐 상판 겸용케이스(100)가 일체로 형성되고, 상기 유로(110) 하부는 노즐하판(200)이 아래쪽에서 기밀하게 밀봉 조립되는 구성을 가진다. The present invention is a hydro engine mount capable of reducing the number of parts by combining two or more internal parts constituting a hydro mount with each other and preventing oil leaks occurring when parts are combined. In the bracket housing 20, A core 10 into which a center bolt 11 fastened to an engine is inserted in the center, and a rubber 30 formed on an outer circumferential surface of the core; and an upper liquid chamber 40 in which liquid is sealed in contact with the core 10 and the rubber 30; and a lower liquid chamber 50 located below the upper liquid chamber 40 and filled with liquid therein; and A diaphragm 60 located at the lower end of the lower liquid chamber 50 and an orifice assembly OA partitioning between the upper liquid chamber and the lower liquid chamber and consisting of a nozzle upper plate and a nozzle lower plate, The nozzle upper plate combination case 100 having the flow path 110 formed under the rubber 30 is integrally formed, and the lower part of the flow path 110 has a configuration in which the nozzle lower plate 200 is airtightly sealed and assembled from the lower side.

Nozzle plate of engine-mount

본 발명은, 하이드로액이 봉입된 엔진마운트에 내장되어 내부를 상측액실과 하측액실로 구획하도록 장착되는 엔진마운트의 노즐판에 있어서, 상면에 유로홈이 형성되고 하측액실과 개통되는 하측개구홀이 형성된 노즐하판;과 상기 유로홈의 위를 덮어 유로를 형성하도록 노즐하판과 결합되며, 상측액실과 개통되는 상측개구홀이 형성된 노즐상판; 및 테두리부분이 노즐하판과 노즐상판 사이에 맞물리게 장착되되, 상면과 하면 각각이 상측개구홀과 하측개구홀 각각에서 노출되도록 장착되는 멤브레인;을 포함하고, 상기 노즐상판과 노즐하판 중 적어도 어느 하나 이상은 멤브레인이 맞물린 지점에서부터 멤브레인의 중앙으로 갈수록 멤브레인과의 갭이 점진적으로 증대하도록 두께가 점진적으로 작아지게 구성된 것을 특징으로 한다. 상기와 같은 구성을 갖는 본 발명은 유체유동을 흡수하여 동특성 개선에 유리하며, 멤브레인과 노즐판의 상대운동이 발생하지 않아 이음발생 억제에 유리하므로 동특성이 개선되어 NVH 성능을 증대시킬 수 있고 이음발생을 억제할 수 있다. The present invention relates to a nozzle plate of an engine mount which is built in an engine mount enclosed with a hydro-liquid and is partitioned into an upper liquid chamber and a lower liquid chamber, wherein a channel groove is formed on the upper surface and a lower opening hole A nozzle upper plate coupled to the lower nozzle plate so as to cover the flow channel and forming a flow path therebetween and having an upper opening hole and an upper opening hole to be opened; And at least one of a nozzle upper plate and a nozzle lower plate, wherein the upper plate and the lower plate are mounted so as to be opposed to each other between the upper plate and the lower plate, Is characterized in that the thickness is gradually reduced so that the gap with the membrane gradually increases from the point where the membrane is engaged to the center of the membrane. The present invention having the above-described structure is advantageous for improving the dynamic characteristics by absorbing the fluid flow. Since the relative movement between the membrane and the nozzle plate does not occur, it is advantageous in suppressing the occurrence of the coupling so that the dynamic characteristics can be improved and the NVH performance can be increased. Can be suppressed.

Liquid-sealed vibration control equipment

본 발명은 액체 봉입식 방진 장치에 관한 것으로서, 2개의 액체실(36A, 36B)을 칸막이하는 칸막이체(40)는, 오리피스 형성 부재(44)와, 그 내주면(44A)의 사이를 막는 탄성 벽(46)과, 탄성 벽을 그 축심 방향(X)으로 끼워 넣는 한 쌍의 칸막이판(48, 50)으로 이루어진다. 상기 한 쌍의 칸막이판은 연결부(56)의 직경 방향 외측(Ko)에 탄성 벽(46)을 끼워넣는 협지 부분(60)을 구비하며, 상기 협지 부분은 직경 방향 외측의 제 1 협지 부분(64)과 직경 방향 내측의 제 2 협지 부분(66)으로 이루어지며, 제 1 협지 부분(64)에 제 2 협지 부분(66) 보다도 압축률이 높은 고압축 협지부(68)를 설치하고, 이에 의해 저주파수역에서의 감쇠 성능과 고주파수역에서의 낮은 동 스프링화를 양립하면서 칸막이체의 조립성을 손상시키지 않고, 이음을 저감하는 것을 특징으로 한다. A partition member (40) for partitioning two liquid chambers (36A, 36B) is provided with an orifice forming member (44) and an elastic wall (46), and a pair of partition plates (48, 50) for fitting the elastic wall in the axial direction (X) thereof. The pair of partition plates are provided with a nip portion 60 for fitting the elastic wall 46 in the radially outer side Ko of the connection portion 56. The nip portion has a first nip portion 64 And a second clamping part 66 in the radially inward direction and the first clamping part 64 is provided with a high compression joint holding part 68 having a compression ratio higher than that of the second clamping part 66, And the low noise spring in the high-frequency water area, while reducing the noise of the partition without damaging the assembling property of the partition.

流体入りパワ−ユニツトマウント装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

流体填充式减振装置

本发明涉及一种流体填充式减振装置(10，100)，包括：联结第一和第二底座元件(12，14)、并限定输入振动期间承受压力波动的压力接收室(52)的弹性体(16)；由柔性层(36)限定、允许其容积改变的平衡室(54)；连通压力接收室和平衡室的节流孔通道(62)；可移动元件(92，120)；以及用于连通两个室且其长度短于节流孔通道的长度的短通道(94)。当压力接收室中压力增大时，所述可移动元件发生移位或变形并关闭所述短通道的平衡室一侧的开口(80)从而使短通道完全关闭，而当压力接收室中压力减小时，所述可移动元件发生移位或变形以使所述短通道工作。

緩衝支持装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Fluid mount

SEALED FOR LIQUID VIBRATION INSULATOR

1. Герметичный для жидкости виброизолятор, содержащий первое крепление, цилиндрическое второе крепление, виброизолирующий базовый элемент, выполненный из резинового упругого материала для соединения первого крепления и второго крепления, диафрагму, образованную из резиновой упругой мембраны, которая прикреплена ко второму креплению и образует герметичную для жидкости камеру между виброизолирующим базовым элементом и собой, разделительный элемент, выполненный с возможностью разделения герметичной для жидкости камеры на первую жидкостную камеру со стороны виброизолирующего базового элемента и вторую жидкостную камеру со стороны диафрагмы, и отверстие, выполненное с возможностью сообщения первой жидкостной камеры и второй жидкостной камеры, при этом разделительный элемент включает в себя: ! кольцевой образующий отверстие элемент, обеспеченный внутри периферийного участка стенки второго крепления и образующий отверстие; ! упругую стенку, выполненную из резинового упругого материала, которая закрывает внутреннюю периферийную поверхность образующего отверстие элемента; и пару разделительных пластин, соединенных друг с другом через соединительный участок, проходящий через радиально центральный участок упругой стенки, и удерживающий упругую стенку между ними в осевом направлении упругой стенки, при этом каждая из пары разделительных пластин включает в себя удерживающий участок, который удерживает упругую стенку радиально снаружи соединительного участка, причем удерживающий участок содержит первый удерживающий участок, обеспеченный радиально снаружи, и второй удерживающий участок, обеспечен� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2011 117 305 (13) A (51) МПК F16F 13/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2011117305/11, 05.03.2009 (71) Заявитель(и): ТОЙО ТАЙР ЭНД РАББЕР КО., ЛТД. (JP) Дата отзыва заявки: 06.03.2012 (72) Автор(ы): ОГАСАВАРА Дай (JP), ХАТАКЕЯМА Синго (JP) (43) Дата публикации заявки: 10.11.2012 ...