Трохоидная роторная машина

Изобретение относится к машинам объемного вытеснения, в частности к трохоид- ным роторным машинам. С целью увеличения производительности машина содержит корпус 1 с окнами подвода и отвода , во внутренней полости которого установлен ротор 3, длина которого более чем вдвое превышает его ширину. Механизм привода, расположенный вне рабочей зоны 23 камеры и включающий приводной вал 6, кинематически связанный с валом 7 ротора посредством водила 8, снабжен упором, установленным на водиле 8 между последним и торцом вала 17 ротора 3, причем торец водила 8 со стороны рабочей камеры совпадает с торцом камеры. Ротор 3 выполнен полым. 2 з.п. ф-лы, 2 ил.

Спиральный компрессор

Использование: в холодильной технике. Сущность изобретения: в корпусе с впускными и выпускными отверстиями расположены неподвижные и подвижные спирали. Подвижные спирали Закреплены на валу. Вал выполнен коленчатым. Подвижные спирали установлены на шейках вала и повернуты относительно друг друга на 180°. с образованием двух рабочих органов. 1 ил.

Вертикальная спиральная машина

Изобретение относится к области машиностроения, в частности к спиральным машинам. С целью повышения КПД, надежности и долговечности машина содержит корпус 1, установленные в нем подвижную 2 и неподвижную 3 спирали, вал 4 с эксцентриком 5 и размещенные на нем противовес 6 и фиксирующее устройство 7. Противовес 6 выполнен в виде пустотелого тела вращения с осью 8 симметрии, совпадающей с осью вращения вала 4, и внутренней полостью 9, смещенной относительно оси 8 симметрии в радиальном направлении. Машина может быть снабжена дополнительным противовесом, выполненным в виде кольца, образованного связанными между собой двумя полукольцами с различной массой. 5 з.п. ф-лы, 8 ил.

IMPROVEMENTS IN OR RELATING TO FLUID DISPLACEMENT APPARATUS

SPIRALFÖRMIGE FLUIDUMVERDRÄNGERMASCHINE MIT SYNCHRONISIERUNGS- UND ENTLASTUNGSEINRICHTUNG.

Scroll pump crank sleeve

A crank sleeve 4 configured to provide a radial offset from the axis of rotation of the crank shaft 5, with an integral counterbalance 6 for imparting an orbital path to the orbital scroll and reducing pump vibration. The sleeve may have a first eccentric portion 7, and a second portion 11 comprising the counterbalance offset longitudinally from the first portion. It may comprise a conduit 13 for receiving the crank shaft, which may be longer than the first portion in a longitudinally and may have a first portion to conduit length ratio of 1:1.3 to about 1.3, or 1:1.5 to about 1:2.5. the sleeve may have an external surface coupled to a bearing 10, preferably the inner race of a rolling or ball bearing. The sleeve may be machined from a single piece of material. Claimed is a scroll pump comprising the above sleeve. The pump may have a crank sleeve as above couple to an orbital scroll bearing and biasing the bearing in a fixed scroll direction. The crank sleeve may be removably fixed to the ...

Thermal/noise management in a scroll pump

Scroll Pump

SCROLL MEMBER FOR A SCROLL-TYPE ROTARY POSITIVE-DISPLACEMENT FLUID APPARATUS

... 1507586 Rotary positive-displacement fluid-machines ARTHUR D LITTLE Inc 20 April 1976 [21 April 1975] 16004/76 Heading F1F In a scroll-type machine, which may be a compressor or an expander, involute ribs, or "wraps", 192, 203 on fixed and orbiting plates 191, 201 engage with grooves 199, 204 containing springs 200, 205, which not only hold the wraps against the opposite plates but also prevent leakage of working fluid radially by way of the grooves. The springs have a generally U-shaped cross-section, Figs. 9 and 10 (not shown), and may be replaced with helical springs, Figs. 6 and 7 (not shown), elastomeric springs, Fig. 8 (not shown), or wavy springs combined with sealing strips, Fig. 11 (not shown). The springs may be dispensed with. Figs. 4 and 5 (not shown), the wraps then being held against the opposite plates and the sides of the grooves by the pressure of working fluid in the grooves. Alternatively, the wraps are fixed in the grooves and sealing elements, which may be spring- loaded ...

ORBITING SCROLL-TYPE LIQUID PUMP AND SCROLL MEMBERS THEREFOR

REVERSIBLE ROTARY PUMP WITH FLOW IN SAME DIRECTION.

PUMP WITH DOUBLECYLINDRICAL ROTORS

ROTARY PUMP

TWIN INTERACTING TOROIDAL CHAMBER ENGINE OR PUMP

Compressor

POSITIVE DISPLACEMENT ROTARY PUMP

SCROLL TYPE PUMP WITH BALANCE WEIGHTS

SCROLL TYPE PUMP WITH BALANCE WEIGHTS

REVERSIBLE UNIDIRECTIONAL FLOW ROTARY PUMP

SCROLL-TYPE FLUID DISPLACEMENT APPARATUS

VARIABLE DISPLACEMENT GEROTOR PUMP

... 7.006 VARIABLE DISPLACEMENT GEROTOR PUMP A gerotor pump or rotary fluid power transmission having a displacement control device for changing the volume of fluid delivered. The displacement control device operates by changing the eccentric position between the inner and outer rotors. The inlet and outlet ports of the pump are kept separate to maintain a unidirectional flow from the inlet to the outlet port across open mesh crossover zone. The closed mesh crossover zone is moved relative to the open mesh crossover zone and maintains separation between the inlet and outlet ports. As the eccentric position of the outer rotor relative to the inner rotor is changed, the volume of fluid transferred from the inlet port to the outlet port over the open mesh crossover zone is varied between a minimum and maximum amount. In one embodiment, the displacement control device is manually shifted. In another embodiment the deplacement control device is hydraulically shifted to control the displacement of ...

REVERSIBLE UNIDIRECTIONAL FLOW ROTARY PUMP

A gerotor pump is arranged for unidirectional flow irrespective of direction of rotation of the pump by arranging for displacement of the axis of eccentricity of the annulus and rotor upon drive reversal, the annulus being mounted in a carrier 14, Figure 1, with freedom for movement in a first direction within the carrier, whilst the carrier itself is pivoted (24) in an outer . housing 15, the carrier being free for movement in a second direction within the housing. The effect of normal drive of the rotor is to hold the parts in the Figure 1 position whilst pumping continues, but in the event of drive reversal a pressure fluctuation causes the annulus to be displaced within the carrier and then the carrier to be displaced within the housing so as to bring the parts to substantially the mirror image of the Figure 1 position allowing continued pumping in the same direction from inlet to outlet under reversed drive.

SCROLL-TYPE COMPRESSOR UNITS

A scroll-type compressor unit includes a fixed and orbiting scroll members contained within a cylindrical housing. Each scroll member has an end plate and a spiral element. In order to reduce the radius of the cylindrical housing, the end plate of the orbiting scroll member is a circular plate having a radius of (a - R/2), and the center of the end plate of the orbiting scroll member is offset from the center of the spiral element affixed thereto, assuming that the radius of the orbital motion of the orbiting scroll member is R, and that the distance between the center and the terminal end of each spiral element is a. Furthermore, the fixed scroll member is so disposed in the cylindrical housing that the center of the spiral element thereof is offset from the center of the cylindrical housing towards the terminal end of the spiral element thereof by R/2. In this arrangement, the radius of the cylindrical compressor housing is further reduced.

Positiv displacement pump.

НАСОС ШЕСТЕРЕННИЙ ЗОВНІШНЬОГО ЗАЧЕПЛЕННЯ З ВМОНТОВАНИМИ КЛАПАНАМИ ОБМЕЖЕННЯ ВИТРАТИ І ТИСКУ

Насос шестеренний зовнішнього зачеплення з вмонтованими клапанами обмеження витрати і тиску містить корпус з розташованими в ньому шестернями, ущільнюючі елементи, дві кришки, канали всмоктування і витіснення. Для зменшення розмірів пристрою в каналі витіснення корпусу встановлений клапан обмеження витрати. Клапан складається із гільзи у вигляді циліндра, на зовнішній поверхні якої виконана концентрична канавка з розміщеним на ній рядом серпоподібних наскрізних вікон. На одному із торців клапана розміщена одна торцева наскрізна канавка. При цьому перший торець гільзи спирається на бурт каналу витіснення, а другий, з торцевою канавкою, контактує з вихідним патрубком. Крім того, внутрішня поверхня гільзи охоплює і взаємодіє з підпружиненим циліндричним плунжером, який переміщується, в тілі якого співвісно з його геометричною віссю виконаний ступінчастий отвір. Однин із ступенів отвору з меншим діаметром являє собою дросель, а другий використовується для розміщення пружини. В корпусі виконано ...

Vortex pump

The invention belongs to the technical field of the fluid mechanics, and particularly relates to a vortex pump. The pump comprises a pump shell, a pump shaft, a fixed vortex disk and a movable vortex disk, wherein the front end of the pump shaft is provided with an eccentric shaft, the eccentric shaft is rotatably provided with a connecting disk, and the front end of the connecting disk is fixedly connected with the movable vortex disk; the rear side of the pump shell is provided with a driving motor for driving the pump shaft, the pump shell and the driving motor are respectively arranged on a base, and the pump shell, a motor shell of the driving motor and the base are of an integrally molded structure; the pump shell is internally is provided with a sealing mechanism used for preventing the liquid in the pump shell from entering into the motor shell along the pump shaft, and the pump shell is internally provided with an anti-revolving mechanism used for limiting the movable vortex disk ...

Scroll compressor

Dispositif d'étanchéité capable de céder axialement pour machines à volute, et machines à volute comprenant ledit dispositif.

DISPOSITIF D'ETANCHEITE DE LA FACE EXTREME DES CLOISONS ENROULEES EN DEVELOPPANTE DES DEUX ELEMENTS COMPLEMENTAIRES EN VOLUTE, DONT L'UN EST FIXE ET L'AUTRE EFFECTUE UN MOUVEMENT ORBITAL, D'UNE MACHINE VOLUMETRIQUE. CHAQUE CLOISON 23 ENROULEE EN DEVELOPPANTE COMPORTE SUR SA SURFACE EXTREME UN CANAL 41 A DEUX COTES QUI EST TAILLE SUR TOUTE SA LONGUEUR ET DANS LEQUEL EST PLACE UN JOINT D'ETANCHEITE 35 QU'UN RESSORT 45 FORME D'UNE BANDE CONTINUE ET COMPORTANT DES PARTIES ELASTIQUES REPLIEES 47 APPLIQUE CONTRE LA SURFACE D'ETANCHEITE 33 DE LA PLAQUE D'EXTREMITE 15 DE L'ELEMENT EN VOLUTE COMPLEMENTAIRE. APPLICATION AUX COMPRESSEURS ET POMPES VOLUMETRIQUES A MOUVEMENT ORBITAL.

POMPE A PISTONS ROTATIFS

La pompe revendiquée est d'une construction très simple, son rendement est très élevé et l'usure entre pistons et cylindres est réduite au minimum. Cette pompe comprend deux cylindres parallèles 1, 2 dans lesquels tournent les pistons rotatifs excentrés 7, 8. Les chambres de travail sont subdivisées en zones d'aspiration et de refoulement par les segments d'étanchéité 11 et 12 qui sont décalés de 180 degrés d'un cylindre à l'autre. L'aspiration se fait par une fente incurvée 24 et le conduit central 25 et le refoulement par une fente incurvée 22 et l'autre conduit central 23. Les deux cylindres sont entraînés synchroniquement par la chaîne 6. Cette pompe peut servir au transfert de tous fluides.

Improvements with the pumps with two concentric cylinders and annular piston

ELEMENT D'ACCOUPLEMENT, NOTAMMENT POUR MACHINE A MOUVEMENT ORBITAL

L'invention concerne un élément d'accouplement, notamment pour machine à mouvement orbital. Ledit élément, qui permet d'accoupler deux composants en relation angulaire predéterminée, dont l'un décrit une orbite par rapport à l'autre, comporte une couronne présentant des paires de clavettes diamétralement opposées sur ses faces annulaires opposées, une paire de clavettes étant décalée de 90 degrés par rapport à l'autre. Les clavettes sont maintenues sur des goujons de pivotement fixés à la couronne, ces goujons présentant des brides qui sont logées dans des contre-alésages de la couronne. Plusieurs disques stabilisateurs sont également incrustés dans les surfaces de la couronne annulaire. Application à des machines telles que des compresseurs à volutes de réfrigérateur.

MACHINE OF REPRESSION OF FLUIDS, OF THE TYPE HAS SPIRAL

Continuous flow engine in involute form - has balance chamber in casing fluid-fed from working chambers to raise sealing pressure

MULTISTAGE VOLUTE PUMP,ESPECIALLY AN ENVOLVENT PUMP

FLASQUE ANTI-FRICTION POUR POMPE OU MOTEUR HYDRAULIQUE A PALETTES

Flasque anti-friction pour pompe ou moteur hydraulique. Un ou deux flasques sont interposés entre les plateaux d'extrémité et les éléments tournants de la pompe ou du moteur. Chaque flasque comprend une face d'usure en matériau à faible coefficient de frottement butant contre le rotor, les palettes et la came annulaire. Un dispositif destiné à réduire l'usure entre le flasque et la came annulaire, lorsque celle-ci se dilate et se contracte radialement, au moment où elle subit des efforts de pression intermittents, comprend une zone de métal dur destinée à venir au contact de la came annulaire. Application aux pompes ou moteurs hydrauliques rotatifs à palettes coulissantes.

MECHANISM HAS THRUST BEARING AND Of COUPLING FOR MACHINE OF the TYPE HAS VOLUTES AND HAS ORBITAL MOVEMENT AND MACHINE EQUIPEE OF THE AFORESAID MECHANISM

STRUCTURE OF GEAR PUMP

PURPOSE: Structure of a gear pump is provided to pump different kinds of working fluids and to supply different pressure and flow thereof to each part by forming plural inlets and outlets with an intermediate gear having external/internal gear shapes. CONSTITUTION: An intermediate gear(10) has external/internal gear shapes corresponding to internal/external gears(1,2) respectively, and a guide groove(10a) accepting the irregular form of a cover. The intermediate gear rotates centering on an eccentric(e1) position from the center of the internal gear. The external gear and the intermediate gear rotate centering on an eccentric(e2) spot in the same direction as the internal gear. A gap between the internal gear and the external gear shape of the intermediate gear gets wider by eccentric(e1) rotation. Thereby, both internal inlet/outlet(C,D) are formed. Another gap between the external gear and the internal gear shape of the intermediate gear is widened to form external inlet/outlet(E,F).

Scroll fluid machine and scroll member used therein

HYDRAULIC PUMP WITH TOOTHED WHEELS AND SLEEVE-BEARINGS

The invention refers to a hydraulic pump with gear wheels mounted, by means of some shafts, in some radial-axial sleeve bearings for which the sealing between the suction chamber and the discharge chamber, in the area where the sleeves come in contact with each other, is improved. Also, the cavity effects are diminished simultaneously with a reduction of the forces that act on the bearings, which reduces their wear and tear, as well as that of the pump body. The hydraulic pump with gear wheels has, on the side faces (b) of the bearings (8), a number of cavities (c) positioned in front of the discharge channel (n) which communicates, through some orifices (e), with the pressure chambers (f). These communicate, by means of other orifices (g), with some cavities (h) that are positioned in the vicinity of the suction channel (i), on the face towards the gear. The bores of the bearings (8) are connected to some cavities (k) which communicate, through some orifices (l), with a draining chamber ...

INTEGRATED MOTOR-PUMP

An integrated motor-driven pump is proposed that reduces the part count of the assembly and addresses several tolerance and alignment issues by combining the outlet plate and retainer ring of the pump into a single component. The integrated motor-driven pump may also include an axial bushing for support of the motor shaft and inner gerotor, ensuring concentric rotation of these components. Combining one of the inlet or outlet plates with the retainer ring and including a central bushing eliminates the need for alignment pins and complex assembly procedures. The disclosure also combines one of the motor end plates with the disclosed integrated pump inlet or outlet plate, retainer ring and central bushing, eliminating the need for a separate motor end plate and bushing to support the motor shaft.

Capacity-Modulated Scroll Compressor

A compressor is provided and may include a first scroll member having an end plate and a spiral wrap extending from the end plate. The end plate may include a first modulation port and a second modulation port each in fluid communication with a compression pocket formed by the spiral wrap. A first modulation valve ring may be movable relative to the end plate between a first position blocking the first modulation port and a second position spaced apart from the first modulation port. A second modulation valve ring may movable relative to the end plate between a first position blocking the second modulation port and a second position spaced apart from the second modulation port. The second modulation ring may be located radially inward from the first modulation valve ring.

Scroll type hydraulic machine

A scroll type hydraulic machine is provided with a scroll unit received in a housing, and a thrust bearing arranged between a movable scroll of the scroll unit and a support surface of the housing and receiving a thrust load of the movable scroll, and the thrust bearing includes a plurality of circular retention holes formed in the support surface, and sliding discs rotatably fitted into these retention holes and sliding with respect to both inner surfaces of the retention holes and the movable scroll.

Scroll-Type Apparatus

Scroll-type pumping apparatus comprises a stator ( 104 ) comprising a fixed scroll member ( 106 ) having an end plate with a first spiral wrap ( 118 ) extending therefrom, and an orbital scroll member ( 108 ) having an end plate with a second spiral wrap ( 120 ) extending therefrom to intermesh with the first spiral wrap ( 118 ). A motor drives a drive shaft for generating orbital movement of the orbital scroll member relative to the fixed scroll member ( 106 ). The apparatus comprises a plurality of flexible rods ( 122 ) arranged about the drive shaft and each having one end connected to the orbital scroll member ( 108 ) and another end connected to the stator ( 104 ) to support the orbital scroll member ( 108 ) relative to the stator and to inhibit rotation of the orbital scroll member.

Compressor with compliant seal

A compressor may include a shell, first and second scroll members, a floating seal, a muffler plate, and a wear ring. The shell defines a discharge chamber and a suction chamber. The floating seal may sealingly engage the second scroll member. The muffler plate defines the discharge chamber and the suction chamber. The wear ring may sealingly engage the muffler plate and the floating seal such that the wear ring, the muffler plate, and the floating seal fluidly isolate the discharge chamber from the suction chamber. The muffler plate may include an axially facing surface that contacts the wear ring. The axially facing surface may include an annular recess. The wear ring may at least partially cover the annular recess. The annular recess may provide clearance between the muffler plate and the wear ring to allow the wear ring to deflect relative to the muffler plate during compressor operation.

Scroll compressor

SCROLL TYPE LIQUID PUMP

PURPOSE: To provide a pump structure having little liquid leak when a pump is operated and provide a fluid pump having high performance and high reliability by providing a mechanism capable of adjusting the back gap of a rotary scroll. CONSTITUTION: Both a fixed scroll member 2 and a rotary scroll member 3 are meshed with each other while their laps are located on the inside, and the rotary scroll 3 is rotated when a crank shaft is rotated by a motor section. An Oldham's ring 4 is inserted into a groove formed on the back side of the rotary scroll 3 to prevent the revolution of the rotary scroll 3, and the back gap 13 of the rotary scroll 3 is set via the existence of a ring 1A. The back gap 13 is measured and the height of the ring 1A to be used is selected at the time of assembling so that the back gap 13 can be controlled within a fixed tolerance, or a gap gauge is inserted between the ring 1A and a frame 16 to change the height, and the back gap 13 is controlled. COPYRIGHT: (C)1996, ...

НАСОС ЦЕНТРОБЕЖНЫЙ

Полезная модель относится к центробежным лопастным насосам и предназначена для перекачки пресной воды из колодцев, резервуаров, скважин и открытых водоемов, для полива садов, огородов, приусадебных участков и установки в системах водоснабжения. Сущность полезной модели: насос центробежный содержит корпус с всасывающим и напорным отверстиями, рабочее колесо, электропривод в виде статора, ротора и крышки, при этом верхний и нижний диски закрытого рабочего колеса выполнены плоскими на расстоянии между ними равном 1/36-1/25 диаметра дисков, каждая из пяти лопаток выполнена расширяющейся от наружного края дисков к центру, а обе поверхности лопаток в горизонтальном сечении представляют собой часть дуги окружности. 2 ил.

Лопастной насос

Планетарно-роторный гидромотор

Изобретение относится к машиностроению . Цель изобретения - повышение наб . 19 М дежности и долговечности гидромотора путем удаления абразивных частиц из зоны трения Гидромотор содержит ротор 1, эксцентрично установленный внутри корпуса 2 и выполненный с двумя зубчатыми венцами - внешним 3, входящим в зацепление с неподвижным зубчатым венцом 4 корпуса 2 и внутренним 5, сопряженным с образованием рабочих камер 6 с шестерней 7, неподвижно закрепленной на валу 8, распределитель выполненный в виде распределительного диска 9 с распределительными окнами 10, и щеку 11, неподвижно установленные на валу 8 по торцам 12 и 13 ротора и сопряженные с ним, подвижного в осевом направлении подпружиненного пружиной 14 золотника 15 с окнами 16, разAI Н 7 « 2 I 10 Ј О 00 VJ 00 VI ел ...

INTERFITTING MECHANISM OF SPIRAL ELEMENTS FOR SCROLL TYPE FLUID DISPLACEMENT APPARATUS

VERDRAENGERMASCHINE FUER INKOMPRESSIBLE MEDIEN.

A rotary diaphragm positive displacement pump

A rotary pump comprising a housing 1 defining an annular chamber with inlet and outlet ports (12, 11, Fig. 1), a flexible annular diaphragm 3 forming one side of the chamber spaced opposite an annular wall on the housing 1, a partition extending between inlet and outlet ports, to the diaphragm 3 which is configured to be pressed against the opposite wall of the housing 1 by a rotating means to force fluid drawn in at the inlet port (12, Fig. 1) around the chamber and to expel it at the outlet port (11, Fig. 1); the rotary pump comprises a reinforcement ring 4 surrounding the rotating means and connected to a central region of the diaphragm 3, the reinforcement ring 4 comprises a crenulated portion (30, Fig. 4) with a plurality of radial projections embedded in the central region of the diaphragm 3 for securing the reinforcement ring 4 to the central region of the diaphragm 3.

VERDRANGERMASCHINE FUR COMPRESSIBLE MEDIA

Scroll machine having counterweights with changeable cavity

A balancing system for different compressors utilizes a counterweight having a common exterior configuration. The mass of the counterweight is optimized for each compressor by changing the size of a recess located in the counterweight. In one embodiment, the recess is an arcuately shaped recess; and in another embodiment, the recess is a plurality of holes.

Compressor

SCROLL-TYPE COMPRESSOR

ROTARY SLIDING VANE PUMP OR MOTOR

THRUST BEARING/COUPLING COMPONENT FOR SCROLL-TYPE ORBITING MACHINERY AND SCROLL- TYPE MACHINERY INCORPORATING THE SAME

A thrust bearing/coupling component for use in scrolltype apparatus which may be a compressor, expander, fluid pump or vacuum pump. The resulting apparatus is particularly suited for use as auxiliary equipment in automotive power systems. The component of this invention comprises rotating or oscillating load carrying members, preferably ball bearings, confined within facing indentations cut in the orbiting scroll member end plate surface and an associated surface in a member stationary with respect to the orbiting scroll member. The thrust bearing/ coupling component couples the stationary and orbiting scroll members in a predetermined angular relationship and it may be used to carry either expansive or compressive axial loads on the scroll members to achieve efficient radial sealing of the moving scroll fluid pockets while controlling surface wearing so that the scroll apparatus may be operated for an extended period of time without servicing.

SCROLL-TYPE COMPRESSOR UNITS

COMPACT SCROLL FLUID DEVICE

A compact scroll fluid device (2) includes a pair of wrap support elements (32, 61) with one of the wrap support elements (61) having an inner axial surface (65) formed with an involute spiral recess (79) and the other of the wrap support elements (32) having an involute spiral wrap member (44) projecting from an inner axial surface (36) thereof. The spiral wrap member (44) is received within the spiral recess (79) while being relatively movable about an orbital path therein. A synchronizer assembly (51) is provided axially between the wrap support elements (32, 61), radially inwardly of both inlet and outlet zones (81, 83) associated with the scroll fluid device (2) and radially outwardly of an orbit center (125) of the device (2). The entire scroll fluid device (2) is preferably made of plastic. With this arrangement, an extremely compact and inexpensive device (2) is provided.

PINION PUMP WITH EXTERNAL COUPLING WITH MOUNTED-IN VALVES FOR RESTRICTION OF FLOW RATE AND PRESSURE

Apparatus volumetric such as pump or similar to cycle of circular translation

ROTOR AND STATOR HAVE VOLUTES OF ROTARY VOLUMETRIC MACHINE

VOLUMETRIC MACHINE

VOLUMETRIC MACHINE

SCROLL COMPRESSOR

SCROLL COMPRESSOR TO IMPROVE COMPRESSING PERFORMANCE THROUGH SMOOTH OLDHAM RING OPERATION

PURPOSE: A scroll compressor is provided to prevent misassembling of an oldham ring by preventing the coupling of the Oldham ring and a rotation scroll in case the assembling direction of the oldham ring is abnormal. CONSTITUTION: A scroll compressor comprises a frame(3), a fixed scroll(4), a rotation scroll(5), and a rotation preventing unit. The frame is fixed in a sealed container(1). The fixed scroll is fixed in the frame. The rotation scroll is installed between the frame and the fixed scroll and coupled with the rotor of a driving motor(2) eccentrically. The rotation preventing unit is formed into ring shape to prevent the rotation of the rotation scroll by comprising a protrusion having determined height. COPYRIGHT KIPO 2012 ...

CENTRIPETAL PUMPING STAGE AND VACUUM PUMP INCORPORATING SUCH PUMPING STAGE

A molecular spiral-type vacuum pumping stage comprises a rotor disk having smooth surfaces cooperating with a stator. The stator is provided with a plurality of spiral channels at least on the surface facing the rotor disk, wherein the gas to be pumped flows in centripetal direction. The cross-section area (σ) of the channels is reduced from the center towards the outer periphery of the stator. Due to this arrangement, it is possible to avoid the reduction of the internal gas flow velocity along the pumping stage and the related risk of internal compression or re-expansions, this limiting the power losses. The present invention also refers to a vacuum pump comprising at least one pumping stage as described above.

Scroll-type fluid machine with eccentric ring drive mechanism

A scroll-type fluid machine, preferably, a scroll-type compressor, having a small size and improved sealing between scroll members. An orbiting scroll is interleaved with a stationary scroll. A crank mechanism is provided for causing the orbiting scroll to undergo an orbiting motion. The crank mechanism includes a crankshaft and an eccentric ring rotated in an eccentric pattern by the crankshaft. Orbital movement of the orbiting scroll is transmitted from the eccentric ring to a shaft of the orbiting scroll. The distance between the center of rotation of the crankshaft and the center of the orbiting scroll shaft is made substantially equal to the radius of orbit when the center of rotation of the crankshaft, the center of the orbiting scroll shaft, and the center of rotation of the eccentric ring are arranged along a straight line in the stated order.

COMPRESSOR

... [Object of the Invention] The object of the present invention is to provide a compressor comprising a scroll compressing mechanism provided with a fixed scroll having an end plate and a scroll body projecting from the end plate and a movable scroll having an end plate and a scroll body projecting from the end plate and meshing with the fixed scroll to form a plurality of operation chambers between them, and a housing accommodating the scroll compressing mechanism, wherein the housing cooperates with the end plate of the fixed scroll to form a discharge passage communicating with the scroll compressing mechanism and a discharge port connected to the higher pressure side portion of an external coolant circuit, the discharge passage is provided with a first discharge chamber opposing the center portion of the end plate of the fixed scroll, an oil separation chamber communicating with the first discharge chamber and opposing the outer peripheral portion of the end plate of the fixed scroll, ...

MOTOR-DRIVEN COMPRESSOR

A motor-driven compressor includes a compression mechanism, an electric motor, a compressor housing, a conductive member, a terminal base, an insulating member, a connection terminal, a wire assembly, a terminal housing, first and second holes formed through the terminal housing and first and second seal members. The conductive member extends from the inside to the outside of the compressor housing and connected electrically to the connection terminal at a terminal connection. The wire assembly has a core wire connecting electrically between the connecting terminal and the electric motor, and an insulator covering the core wire. The terminal housing disposed in the compressor housing covers the terminal connection. The wire assembly has an insulating tube covering the insulator, wherein both ends of the insulating tube are opened for communicating with the inside and the outside of the terminal housing through a clearance formed between the insulating tube and the insulator.

SCROLL COMPRESSOR

A scroll compressor includes a fixed scroll and an orbiting scroll. A base plate of at least one of the fixed scroll and the orbiting scroll includes an auxiliary discharge port and a groove. The groove is partially covered with an orbiting volute wall facing the groove, so that a compression chamber that is in a compression process and is connected to the auxiliary discharge port is not connected to other compression chambers in a compression process or to a compression chamber connected to a main discharge port. The groove is always connected to one of the compression chambers.

PUMP ARRANGEMENT

A ROTARY DIAPHRAGM POSITIVE DISPLACEMENT PUMP

FUEL PUMP

PURPOSE: To reduce discharge pulsation while flowing in a fuel passage with great volume, by forming a fuel passage for discharged fuel in the housing of a drive motor to rotate a movable member of a scroll type pump. CONSTITUTION: A fuel pump consists of a motor part 1 and a pump part 2, and a rotor 12 is installed in an enclosing cylindrical motor housing 11 along its axis, where a gap 17 is formed between the periphery of this rotor 12 and the inside wall of said housing 11 so as to provide space for installation of a stator 13. An eccentric shaft 141 is installed at the tip of an output shaft 14 which serves as support for the rotor 12, and a movable member 22 is fitted on this eccentric shaft 141 at its foremost end. A spiral ridge 221 is formed at the center of the contact surface of movable member 22 with the housing 21 wall to constitute a scroll type pump between this ridge 221 and the mating recess 221 part of housing wall. The fuel is taken in from a joint pipe 23, passes through ...

СПИРАЛЬНЫЙ КОМПРЕССОР

Спиральный компрессор, содержащий корпус с установленным в нем рабочим органом, выполненным в виде двух дисков со спиральными рабочими поверхностями, обращенными одна навстречу другой с возможностью взаимодействия между собой и образованием рабочих камер, при этом один из упомянутых дисков рабочего органа закреплен неподвижно, а второй - с возможностью планетарного перемещения относительно первого посредством эксцентрикового вала, отличающийся тем, что компрессор снабжен эвольвентной зубчатой передачей, один элемент которой установлен в упомянутом корпусе неподвижно, а второй жестко соединен с подвижным диском рабочего органа с возможностью одновременного вращения вокруг центральной и эксцентриковой осей с одинаковой частотой в противоположных направлениях, а расстояние между упомянутыми осями равно половине величины бокового зазора находящихся в зацеплении зубьев.

Роторный насос

Планетарная гидромашина

Роторный насос

Изобретение относится к насосостроению и касается роторных насосов. Цель изобретения - повышение надежности и долговечности. Роторный насос содержит рабочую камеру 4 в виде двух сопряженных полых торов 10 и 11 из немагнитного материала. Внутри торов установлены два кинематически связанных ротора 8 и 9. В рабочей камере 4 установлены нагнетательные элементы 7 в виде шаров из твердого ферромагнитного материала. Роторы 8 и 9 выполнены из магнитного материала и имеют радиальные выступы с наконечниками, охватывающими торы 10 и 11 с двух противоположных сторон. Увлекаемые магнитным полем, создаваемым при вращении роторов, шаровые нагнетательные элементы 7 перемещаются в полостях рабочей камеры 4 каждый внутри своего тора, что обеспечивает высокую герметичность без использования уплотнений. 2 ил.

SCHNECKENELEMENT FUER EINE VORRICHTUNG MIT KOMPLEMENTAEREN SCHNECKENELEMENTEN

Scroll pump having axial compliance system including a flexure

A scroll pump comprising a frame 210, a stationary plate scroll 220, an orbiting plate scroll, at least one tip seal 230, an eccentric drive mechanism 240 having a counterbalance 244 and assembled to and supported by the frame such that it drives the orbiting scroll around a longitudinal axis of the pump, and an axial compliance system including a flexure 500. The flexure is interposed between an inner race of a bearing 246 of the eccentric drive mechanism and a flexure-locating surface 244a of the eccentric drive mechanism. The flexure allows the orbiting plate scroll to move away from the stationary plate scroll in the case of an assembly process which would otherwise result in the tip seal(s) being too forcefully engaged with the plate of the opposing plate scroll.

ROTARY POISITVE-DISPLACEMENT FLUIDMACHINES

A rotary diaphragm positive displacement pump

Improvements in or relating to Rotary Positive-Displacement Pumps of the Gyratory-Piston Type

... 1,177,291. Rotory pumps. J. DELSUC. March 20, 1967 [March 23, 1966], No.12943/67. Heading F1F. A rotory pump of the gyratory-piston type comprises an annular recess 6 formed in a portion 4 of a casing 1 and containing a piston that is constituted by an annular flange 13 on a flat circular plate 12, an inlet port 10 being provided in the innermost wall of said recess on one side of a fixed radial partition 9, and outlet ports constituted by an aperture 18 and a notch 19 being situated in said plate on the other side of said partition and shaped such that they are suitably controlled by the portion 4 when the piston gyrates, Fig.4a to 4f (not shown). The outlet ports communicate with an outlet chamber 8, the plate 12 being pressed against the portion 4 by the fluid in said chamber and a compression spring 28 circumjacent on outlet channel 3b. An inlet channel 3a communicates with the port 10 through a bore 2 containing a flexible sleeve 30, which is made of e.g. rubber, and shrouds a rotatable ...

VERDRANGERMASCHINE FUR KOMPRESSIBLE MEDIEN

SCROLL TYPE COMPRESSOR

DRIVE MECHANISM FOR SCROLL PUMP

POSITIVE DISPLACEMENT MACHINE FOR COMPRESSIBLE MEDIA