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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4927. Отображено 100.
29-11-2012 дата публикации

Vibration-damping device

Номер: US20120298832A1
Автор: Tatsuya Kobori
Принадлежит: Bridgestone Corp

This vibration-damping device ( 1 ) includes: a bracket member ( 3 ) connected to one of a vibration-generator and a vibration-receiver; and a vibration-damping member ( 2 A, 2 B) including: a cylindrical first mounting member ( 20 A, 20 B) fitted inside a fitting part ( 30 ) provided in the bracket member ( 3 ), a second mounting member ( 21 A, 21 B) connected to the other of the vibration generator and the vibration receiver, and an elastic body ( 22 A, 22 B) that elastically connects the first mounting member ( 20 A, 20 B) and the second mounting member ( 21 A, 21 B). The first mounting member ( 20 A, 20 B) and the fitting part ( 30 ) are each formed in a shape having a plurality of radii of different lengths in a plan view.

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Номер записи: 1
03-01-2013 дата публикации

Variable Stiffness Support

Номер: US20130001841A1
Автор: David E. Heverly, David F. Haynes, David L. Williams, Michael R. Smith, Robert J. Pascal, Taeoh Lee
Принадлежит: BELL HELICOPTER TEXTRON INC

A system and method to control vibrations exerted on a non-vibrating structure. The system includes an adjustable variable stiffness support securely attached to both the non-vibrating structure and a vibrating structure. A driver operably associated with the variable stiffness support is configured to selectively adjust the variable stiffness support. A control system in data communication with both a sensor system and the driver includes an algorithm to determine whether adjustment of the variable stiffness support is required.

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Номер записи: 2
29-08-2013 дата публикации

Mass-balancing transmission and method for mounting same

Номер: US20130220070A1
Автор: Siegfried Tisch
Принадлежит: Schaeffler Technologies AG and Co KG

A mass-balancing transmission of an internal combustion engine ( 1 ) is provided, having a transmission housing ( 8 ) and a balancing shaft ( 6 ) with a bearing point ( 10, 11 ) at which the balancing shaft is mounted radially in a bearing seat ( 12, 13 ) of the balancing housing, and having an unbalanced section ( 9 ) which is formed in one part with the bearing point of the originally shaped balancing shaft. The bearing point is set back radially compared to the unbalanced section with the result that the diameter relationship: d2 >d1 applies for the external envelope circle d1 of the bearing point and the external envelope circle d2 of the unbalanced section. Considered in the axial direction of the balancing shaft, the external envelope circle d2 of the unbalance section and the external envelope circle d1 of the bearing point extend offset to one another with an eccentricity of e.

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Номер записи: 3
02-01-2020 дата публикации

SPRING-SUPPORT MECHANISM FOR PARALLEL ROBOTS

Номер: US20200001474A1
Автор: CU XUAN HUNG, DANG XUAN THAO
Принадлежит: VIETTEL GROUP

The purpose of the presented invention propose a spring-support mechanism for the parallel robot, and this mechanism is applied to parallel robot models to reduce the load on the actuators. The spring-support mechanism for the parallel robot are composed of: sets of rotated joints to adjust the direction of the support mechanism to match the direction of the moving frame of robot, rhombus mechanism with hinges in four vertices transform displacement of moving frame to elasticity of springs, guiding plates used to adjust the springs length so that the thrust force generated by springs is constant, set of springs is assembled parallel and fixtures for the springs. 1. The spring-support mechanism for a parallel robot comprising:Sets of rotated joints to adjust the direction of the support mechanism to match a direction of a moving frame of the robot;Rhombus mechanism with hinges in four vertices for transforming a displacement of the moving frame to an elasticity of springs, said springs having a length;Guiding plates used to adjust the length of the springs so that a thrust force generated by the springs is constant; whereinThe set of springs is assembled parallel, andComprising fixtures for the springs.2. The spring-support mechanism for parallel robot with constant force according to :When the moving frame moves down, the spring are compressed and a length of the structure decreases; Then the rhombus structure will be flattened, The movement of the rhombus is passed to the guiding plates through pivots, When the rhombus is compressed, the pivots touch the guiding plates and move them apart, wherein the guiding plates are provided with guiding grooves, these grooves adjust the displacement of the locating pivots on the rhombus to the displacement of the spring such that the rhombus's thrust force is constant.3. The spring-support mechanism for parallel robot with constant force according to claim 1 , wherein:{'sub': z', 'thoi', 'lx', 'load', 'tx', 'load', 'elastic', ...

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Номер записи: 4
02-01-2020 дата публикации

METHODS AND APPARATUS FOR SELECTIVE SPRING PRE-LOAD ADJUSTMENT

Номер: US20200001676A1
Автор: Cox Christopher Paul, ERICKSEN Everet, MARQUEZ Michael David
Принадлежит: Fox Factory, Inc.

A method and apparatus for a suspension comprising a spring having a threaded member at a first end for providing axial movement to the spring as the spring is rotated and the threaded member moves relative to a second component. In one embodiment, the system includes a damper for metering fluid through a piston and a rotatable spring member coaxially disposed around the damper and rotatable relative to the damper. 1a cylindrical body having a threaded portion;a spring coaxially disposed around said cylindrical body;an adjuster assembly disposed coaxially around said cylindrical body and coupled to said spring;a follower nut disposed coaxially around said cylindrical body and coupled to said adjuster assembly, said follower nut disposed in threaded engagement with said threaded portion of said cylindrical body and abutting an end of said spring, said follower nut constructed and arranged to affect compression of said spring while said follower nut translates axially along said threaded portion of said cylindrical body, wherein an axial position of said follower nut is indicated relative to a piggyback reservoir operable with a damper; and a longitudinal wire coil;', 'a permanent magnet; and', 'wherein said position of said permanent magnet relative to said longitudinal wire coil is indicated by a state of current through said longitudinal wire coil., 'a visual indicator and a scale coupled with said piggyback reservoir, said visual indicator and said scale operable to indicate an amount of compression of said spring, said visual indicator and said scale together comprising. A suspension system comprising: This application claims priority to and is a continuation of the co-pending patent application, U.S. patent application Ser. No. 15/623,914, filed on Jun. 15, 2017, entitled “METHODS AND APPARATUS FOR SELECTIVE SPRING PRE-LOAD ADJUSTMENT”, by Christopher Paul Cox et al., Attorney Docket Number FOX-0035US.CON2, and assigned to the assignee of the present invention, ...

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Номер записи: 5
02-01-2020 дата публикации

DAMPENER FOR ISOLATED VIBRATION ISSUES

Номер: US20200001701A1
Автор: SCHONEBOOM Sean Paul Wade
Принадлежит:

A system for dampening vibrations in a vehicle is provided. The system includes a first heat exchanger core having a first plurality of fins, and a second heat exchanger core having a second plurality of fins. A vibration dampener is connected to the first and second heat exchanger cores. The vibration dampener extends through the first plurality of fins and through the second plurality of fins, while spanning the gap between the first and second heat exchanger cores. To accommodate the vibration dampener passing thorough the fins, the fins may be formed to define an enlarged aperture at a location where the vibration dampener passes through. 1. A system for dampening vibrations in a vehicle , the system comprising:a first heat exchanger core;a second heat exchanger core spaced from the first heat exchanger core to define a gap therebetween; and (i) mounted to the first heat exchanger core,', '(ii) mounted to the second heat exchanger core, and', '(iii) extending through the first and second heat exchanger cores and spanning the gap therebetween., 'a vibration dampener configured to dampen vibration in at least one of the heat exchanger cores, the vibration dampener'}2. The system of claim 1 , wherein the vibration dampener is held in tension between the first and second heat exchanger cores.3. The system of claim 2 , wherein the vibration dampener includes a rubber body.4. The system of claim 1 , wherein the first heat exchanger core includes a first plurality of fins claim 1 , the second heat exchanger core includes a second plurality of fins claim 1 , and the vibration dampener extends between at least two of the first plurality of fins and at least two of the second plurality of fins.5. The system of claim 4 , wherein the at least two of the first plurality of fins are formed to define a first rounded aperture claim 4 , at the least two of the second plurality of fins are formed to define a second rounded aperture claim 4 , and the vibration dampener extends ...

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Номер записи: 6
03-01-2019 дата публикации

MICROMECHANICAL SPRING FOR AN INERTIAL SENSOR

Номер: US20190002274A1
Автор: Cardanobile Stefano
Принадлежит:

A micromechanical spring for an inertial sensor includes first and second spring elements situated parallel to each other and anchored on an anchoring element of the inertial sensor; and a third spring element situated between the two spring elements, anchored on the anchoring element, and having on both external sides a defined number of nub elements that are formed so as to have an increasing distance from the spring elements in a defined fashion as the distance from the anchoring element increases. 19-. (canceled)10. A micromechanical spring for an inertial sensor , having:an anchor;a first spring element anchored to the anchor;a second spring element anchored to the anchor and extending in parallel to the first spring element; and along a length of a first of two external two external sides of the third spring element extending from the anchor a first plurality of nub elements that each extends from the third spring element towards the first spring element, wherein respective distances of the nub elements of the first plurality from the first spring element vary such that the further the nub element from the anchor the greater the distance of the nub element from the first spring element; and', 'along a length of a second of two external two external sides of the third spring element extending from the anchor a second plurality of nub elements that each extends from the third spring element towards the second spring element, wherein respective distances of the nub elements of the second plurality from the second spring element vary such that the further the nub element from the anchor the greater the distance of the nub element from the second spring element., 'a third spring element anchored to the anchor, extending from the anchor between the first and second spring elements, and including111. The micromechanical spring of claim , wherein the first and second spring elements are connected to each other at their end regions by a connecting element.121. The ...

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Номер записи: 7
07-01-2016 дата публикации

AXIALLY DAMPED HYDRAULIC MOUNT ASSEMBLY

Номер: US20160003322A1
Автор: Bradshaw Jeffery Michael, Dowson Chris, Rice Bernie, Valliappan Raj
Принадлежит:

An example mount assembly includes an upper mount and a lower mount. The assembly also includes an inertia track having a central opening defining an axis. The inertia track defines a passage in fluid communication with the first chamber and the second chamber. The inertia track is moveable along the axis. 1. A hydromount assembly comprising:an upper mount disposed about an axis, the upper mount comprising an insert, a ring radially inward of the insert, a tube radially inward of the ring, and a first elastomeric element at least partially radially disposed between the insert and the ring and between the ring and the tube;a lower mount including an upper portion, a central portion, and a lower portion, the lower mount including a shaft, wherein the central portion includes an engagement member; andan inertia track having a passage fluidly connected with a first chamber and a second chamber, wherein the inertia track separates the first chamber and the second chamber, the inertia track having a first central opening about the axis, wherein the shaft extends through the first central opening, wherein the engagement member is disposed in the inertia track.2. The hydromount assembly of claim 1 , wherein the first elastomeric element includes at least one opening extending circumferentially about the axis and disposed between the ring and the insert.3. The hydromount assembly of claim 1 , wherein the first elastomeric element defines a second central opening about the axis claim 1 , wherein the tube extends through the second central opening.4. The hydromount assembly of claim 3 , wherein the tube has a first diameter greater than a second diameter of the second central opening.5. The hydromount assembly of claim 1 , wherein the upper mount provides a first damping rate in a first radial direction different than a second damping rate in a second radial direction.6. The hydromount of claim 5 , wherein the first radial direction corresponds to a fore-aft direction and the ...

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Номер записи: 8
04-01-2018 дата публикации

SPRING COMPRESSION DEVICE

Номер: US20180003162A1
Автор: Banach Pawel, Kielczykowski Przemyslaw
Принадлежит:

A spring compression device comprises a spring sleeve configured to receive a spring; a spring adjustment member provided on and engaged with the spring sleeve and configured to abut a spring mounted on the spring sleeve, wherein the spring sleeve and spring adjustment member define an operating length (L) of the spring compression device, and the spring adjustment member is configured to be moved relative to the spring sleeve to adjust the operating length of the spring compression device; and at least one blocking component for blocking movement between the spring sleeve and the spring adjustment member. 1. A spring compression device , comprising:a spring sleeve configured to receive a spring;a spring adjustment member provided on and engaged with the spring sleeve and configured to abut a spring mounted on the spring sleeve, wherein:the spring sleeve and spring adjustment member define an operating length (L) of the spring compression device, andthe spring adjustment member is configured to be moved relative to the spring sleeve to adjust the operating length of the spring compression device; andat least one blocking component for blocking movement between the spring sleeve and the spring adjustment member.2. The spring compression device according to claim 1 , wherein the spring sleeve and spring adjustment member are engaged with a threaded connection.3. The spring compression device according to claim 1 , wherein an exterior surface of the spring sleeve and an interior surface of the spring adjustment member each have at least one recess which align to form a hole for receiving the blocking component.4. The spring compression device according to claim 3 , wherein the hole extends in a direction parallel to a longitudinal axis (R) of the spring sleeve.5. The spring compression device according to claim 3 , wherein the blocking component is press-fitted into the hole.6. The spring compression device according to claim 1 , wherein the blocking component ...

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Номер записи: 9
04-01-2018 дата публикации

Adjustable Damping Valve Device

Номер: US20180003259A1
Автор: MANGER Thomas, RUHMANN Lukas, Schmitt Stefan
Принадлежит:

An adjustable damping valve device for a vibration damper, includes a main stage valve which is controlled by a pre-stage valve with a pre-stage valve body, which pre-stage valve can be actuated by an electromagnetic actuator, wherein an emergency operation valve controls the main stage valve during emergency operation, wherein an emergency operation armature is preloaded on the pre-stage valve body of the pre-stage valve by an emergency operation spring so that the pre-stage valve forms the emergency operation valve. 18-. (canceled)9. An adjustable damping valve device for a vibration damper comprising:a main stage valve;a pre-stage valve including a pre-stage valve body constructed to control said main stage valve;an electromagnetic actuator constructed to actuate said pre-stage valve;an emergency operation constructed to control said main stage valve during emergency operation; andan emergency operation armature preloaded by an emergency operation spring on said pre-stage valve body of said pre-stage valve so that said pre-stage valve forms said emergency operation valve.10. The adjustable damping valve device according to claim 9 , wherein said emergency operation armature is supported peripherally on a cover surface of said pre-stage valve body.1163. The adjustable damping valve device according to claim 10 , wherein said cover surface has a stepped profile with a stepped contact surface () for said emergency operation armature.12. The adjustable damping valve device according to claim 10 , wherein said emergency operation armature has a stepped support surface in direction of said cover surface of said pre-stage valve body.13. The adjustable damping valve device according to claim 12 , wherein said support surface has a knife edge geometry.14. The adjustable damping valve device according to claim 12 , wherein said emergency operation armature has at least one flow connection which connects two spaces of said damping valve device which are separated from one ...

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Номер записи: 10
04-01-2018 дата публикации

SHAPE MEMORY ALLOW THERMALLY COMPENSATING DAMPING SYSTEM

Номер: US20180003260A1
Автор: Klein Gary, Marble Robert P., McGuire Michael E., Weddle Charles C.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A damper assembly includes a housing that defines an interior chamber. A rod is supported by the housing, and is at least partially disposed within the interior chamber. A piston assembly is attached to the rod within the interior chamber. The piston assembly separates the interior chamber into at least a first fluid chamber and a second fluid chamber. The piston assembly includes an annular plate defining at least one orifice, which interconnects the first fluid chamber and the second fluid chamber in fluid communication. The piston assembly includes at least one valve disc that is disposed adjacent a first face of the annular plate. An SMA device is disposed in contact with the valve disc. The SMA device is changeable between a first state and a second state, at a transition temperature, to control a bending stiffness of the valve disc to adjust a damping rate. 1. A damper assembly comprising:a housing defining an interior chamber, and extending along a longitudinal axis;a rod supported by the housing and at least partially disposed within the interior chamber of the housing;a piston assembly attached to the rod within the interior chamber of the housing, and positioned to separate the interior chamber into at least a first fluid chamber and a second fluid chamber, and operable to resist relative movement between the rod and the housing at a damping rate;wherein the piston assembly includes an annular plate defining at least one orifice interconnecting the first fluid chamber and the second fluid chamber in fluid communication;wherein the piston assembly includes at least one valve disc disposed adjacent a first face of the annular plate for controlling fluid flow through the at least one orifice;a shape memory alloy (SMA) device in contact with the at least one valve disc and changeable between a first state and a second state, at a transition temperature, to control a bending stiffness of the at least one valve disc to adjust the damping rate;wherein the SMA ...

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Номер записи: 11
07-01-2021 дата публикации

FENDER

Номер: US20210002840A1
Автор: VAN DER BURG Gerrit
Принадлежит:

A fender for fending a ship from a mooring wall comprises a hydraulic cylinder and piston assembly arranged so that compression of the fender is translated into a force to move the piston in the cylinder. Valves couple the hydraulic cylinder to reservoir that is at least partially filled with gas. An overpressure valve allows hydraulic liquid to flow from the cylinder to the reservoir when the fender compression force exceeds a threshold, allowing the fender to be compressed. When the force drops away, a return valve allows hydraulic liquid to return to the cylinder, causing the piston to move to expand fender, following movement of the ship away from the fender. In this way oscillating motion is reduced. A plurality of such fenders may be combined with mooring cable holding devices with a similar mechanism that pays out cable when the movement of the ship from the mooring wall cause the force on the mooring cable to grow. Energy generated from such forces may be used to reduce movement of the ship. 1. A fender for fending a ship from a mooring wall , the fender comprisinga fender base structure;a movable fender surface mounted moveable in a fender compression direction relative to the fender base structure;a hydraulic cylinder and piston assembly operationally connected between the fender base structure and the movable fender surface,a reservoir filled at least partially with gas;an overpressure valve configured to pass hydraulic liquid from the hydraulic cylinder to the reservoir when a difference between a pressure of the hydraulic liquid in the hydraulic cylinder and a pressure in the reservoir reaches a first threshold;a return valve configured to pass hydraulic liquid from the reservoir to the hydraulic cylinder when a difference between a pressure of the hydraulic liquid in the hydraulic cylinder drops below a second threshold lower than the first threshold.2. The fender according to claim 1 , comprising an electromagnet with poles configured to generate a ...

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Номер записи: 12
02-01-2020 дата публикации

ADJUSTABLE STIFFNESS ASSEMBLY

Номер: US20200003269A1
Автор: Raun Allan Leo, Swallow John Craven
Принадлежит:

The invention provides an adjustable stiffness assembly for use in conjunction with a fixed stiffness element to elastically connect a structure to a mass. The assembly includes a structure mount, a mass mount, and a rotatable stiffness element. The rotatable stiffness element rotatably engages with the structure mount and the mass mount, and has a minimum stiffness value with respect to forces in a direction a maximum stiffness value with respect to forces in another direction The fixed stiffness element and the adjustable stiffness assembly together provide a complete stiffness assembly having a total stiffness value with respect to force in the global direction for elastically connecting the mass and the structure. The first rotatable stiffness element is rotatable relative to the structure mount and the first mass mount to vary the total stiffness value of the complete stiffness assembly with respect to force in the global direction. 1. An adjustable stiffness assembly for use in conjunction with a fixed stiffness element to elastically connect a structure to a mass , the fixed stiffness element providing stiffness with respect to force in a global direction , the adjustable stiffness assembly comprising:a structure mount attachable to the structure;a first mass mount attachable to the mass, the structure mount being spaced apart from the first mass mount; anda first rotatable stiffness element extending between the structure mount and the first mass mount and being rotatably engaged with the structure mount and the first mass mount, the first rotatable stiffness element having a minimum stiffness value with respect to forces in a first local direction relative to the first rotatable stiffness element, the first local direction referred to as X, and a maximum stiffness value with respect to forces in a second orthogonal local direction relative to the first rotatable stiffness element, the second local direction referred to as Y, wherein the maximum stiffness ...

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Номер записи: 13
02-01-2020 дата публикации

SLEEVE FOR A DAMPER, DAMPER, SYSTEM, MANUFACTURING METHOD FOR A SLEEVE, MANUFACTURING METHOD FOR A DAMPER

Номер: US20200003270A1
Автор: ALSCHER Christian, JUNGHANS Christian, KÜCHMANN Jörg, LANGE-HASENBECK Finn, MCNEIL Scott, WOHLSCHLEGEL Dieter
Принадлежит:

A substantially tubular sleeve is arranged in a damping space of the damper containing a damping fluid and has at least one recess at least in an inner face of the sleeve. The recess defines a flow channel for the damping fluid for adaptation of the flow impedance (F) for the damping fluid at least in a direction along a longitudinal axis (LA) of the sleeve. The sleeve is rigidly and releasably connected to the outer body by a number of contact surfaces on an outer surface of the sleeve and/or has at least one guide surface arranged on an inner surface of the sleeve for guiding the piston over the travel path (H). 111-. (canceled)12: A substantially tubular sleeve for a damper , in particular a industrial shock absorber , wherein the sleeve is configured to be arranged in a damping space of the damper containing a damping fluid and comprises at least one recess at least in an inner face of the sleeve , wherein the recess defines a flow channel for the damping fluid for adaptation of the flow impedance (F) for the damping fluid at least in a direction along a longitudinal axis (LA) of the sleeve , wherein a width of the recess along the longitudinal axis increases parabolically from one end of the recess to the other end of the recess.13: The sleeve according to claim 12 , wherein the recess i. modulated with respect to a shape and/or surface of a cross-section orthogonally to the longitudinal axis (LA), particularly preferably with respect to a width (B) in a circumferential direction of the sleeve and/or a depth (T) in a radial direction of the sleeve;', 'ii. modulated with respect to a position of the recess in a circumferential direction of the sleeve and/or', 'iii. actively modulated with respect to a surface composition and/or surface morphology with a flow-dynamic effect;, 'a. is modulated along the longitudinal axis (LA) in order to set the flow impedance (F), wherein the recess is preferably'}b. has a depth (T) in a radial direction of the sleeve which is ...

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Номер записи: 14
13-01-2022 дата публикации

Shock absorber for a vehicle

Номер: US20220009304A1
Автор: Daniel Leclerc
Принадлежит: BOMBARDIER RECREATIONAL PRODUCTS INC

A shock absorber for a vehicle includes an inner tube at least partially defining an inner fluid compartment and an outer tube enclosing at least in part the inner tube therein. Together, the inner tube and the outer tube at least partially define an outer fluid compartment therebetween. The inner tube defines a bypass zone having a plurality of bypass apertures that fluidly communicate the inner fluid compartment with the outer fluid compartment. A piston is movably mounted within the inner tube and moves in compression and in rebound. The piston defines a piston passage extending through the piston for permitting fluid flow between a first side and second side of the piston. An electronically controlled valve is connected to the piston and controls fluid flow through the piston passage. A method for controlling the shock absorber is also disclosed.

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Номер записи: 15
14-01-2021 дата публикации

PEDAL FREE EMULATOR AND BRAKE-BY-WIRE SYSTEM

Номер: US20210009098A1
Автор: Luo Dongqiang, Reuter David Fredrick
Принадлежит:

A pedal feel emulator includes: a body; a displacement piston provided inside the body, the displacement piston being movable along an axial direction of the body, the displacement piston has a hollow part at lower part, and the hollow part is surrounded by a surrounding wall; a retainer provided fixed inside the body, the retainer being under the displacement piston; a first elastic object provided between the displacement piston and the retainer, the first elastic object being retained by the retainer; and a second elastic object provided inside the hollow part of the displacement piston, an air gap is provided between bottom surface of the second elastic object and top surface of the retainer. A brake-by-wire system including the pedal feel emulator is also disclosed herein. 1. A pedal feel emulator , comprising:a body;a displacement piston disposed in the body and movable along an axial direction, wherein, the displacement piston defines a hollow part located at a lower part and the hollow part is surrounded by a surrounding wall;a retainer disposed in the body and located under the displacement piston;a first elastic object disposed between the displacement piston and the retainer and retained by the retainer; anda second elastic object disposed inside the hollow part of the displacement piston and space from the retainer and defining an air gap extending between a bottom surface of the second elastic object and a top surface of the retainer.2. The pedal feel emulator according to wherein the surrounding wall overlaps with an upper part of a side wall of the retainer along a radial direction.3. The pedal feel emulator according to further including:a first step portion is provided on a side wall of the retainer,an outside diameter of the first step portion being larger than an inside diameter of the surrounding wall, anda distance between a bottom end of the surrounding wall and the first step portion being larger than the dimension of the air gap along the ...

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Номер записи: 16
27-01-2022 дата публикации

TORSION SPRING ADJUSTER

Номер: US20220025699A1
Автор: BARIOLI Raffaele, FEELEY Bill, MILLER Chris, Peterson Brian
Принадлежит: EASTERN METAL SUPPLY INC.

A torsion spring adjuster for a rolling shutter is provided. A support plate has a first flange with a hole. A wheel is rotatably mountable on the support plate. The wheel has: a drive recess shaped to engage an end of a torsion spring; a first set of recesses around a circumference of the wheel, the first set of recesses being a first lateral distance from a first end of the wheel; a second set of recesses around a circumference of the wheel, the second set of recesses being a second lateral distance from the first end of the wheel. When the wheel is mounted on the support plate the first lateral distance aligns the first set of recesses with the hole of the first flange of the support plate, and the second lateral distance aligns the second set of recess past the first flange of the support plate. 1. A torsion spring adjuster for a rolling shutter , comprising:a support plate having a first flange with a hole; a drive recess shaped to engage an end of a torsion spring;', 'a first set of recesses around a circumference of the wheel, the first set of recesses being a first lateral distance from a first end of the wheel,', 'a second set of recesses around a circumference of the wheel, the second set of recesses being a second lateral distance from the first end of the wheel;, 'a wheel rotatably mountable on the support plate, the wheel having the first lateral distance aligns the first set of recesses with the hole of the first flange of the support plate; and', 'the second lateral distance aligns the second set of recess past the first flange of the support plate., 'wherein when the wheel is mounted on the support plate2. The torsion spring adjuster of claim 1 , further comprising:a pin; the torsion spring adjuster has a locked state in which the pin in inserted through the hole of the first flange and into a recess of the first set of recesses of the wheel such that the wheel cannot rotate relative to the support plate;', 'the torsion spring adjuster has an ...

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Номер записи: 17
09-01-2020 дата публикации

DAMPER WITH VEHICLE INTERFACE ADAPTER

Номер: US20200009933A1
Автор: FLINT Jason Edward, HAIGHT Trevor Daniel
Принадлежит:

Some examples include a damper having an outer tube with a piston reciprocally mounted on an interior of the outer tube. A dampening force generating mechanism may be mounted on the outer tube within a threshold distance from a first end of the outer tube to control a dampening property of the piston. In addition, a vehicle interface adapter may seal the first end of the outer tube. The vehicle interface adapter may include an insertion portion extending outward from the first end of the outer tube. The insertion portion is able to be inserted into a cup-shaped portion of a vehicle attachment receptacle. 1. A damper comprising:an outer tube;an inner tube mounted within the outer tube to form an annular outer chamber between the outer tube and the inner tube;an intermediate tube sealed to the inner tube to form an intermediate annular chamber between the intermediate tube and the inner tube;a piston reciprocally mounted in an interior of the inner tube, wherein the interior of the inner tube includes an inner chamber in fluid communication with the intermediate annular chamber;a base valve that regulates fluid flow between the annular outer chamber and the inner chamber;a solenoid valve operable by a solenoid, the solenoid valve in fluid communication with the annular outer chamber and the annular intermediate chamber to control a pressure level in the inner chamber; anda vehicle interface adapter sealing a first end of the outer tube, the cylindrical vehicle interface adapter including a cylindrical insertion portion extending outward from the first end of the outer tube for insertion into a cup-shaped portion of a vehicle attachment receptacle.2. The damper as recited in claim 1 , wherein the cylindrical insertion portion has a length greater than a height of a wall of the cup-shaped portion of vehicle attachment receptacle to provide clearance for the solenoid.3. The damper as recited in claim 1 , wherein:a diameter of the cylindrical insertion portion is sized to ...

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Номер записи: 18
14-01-2021 дата публикации

ALUMINUM ALLOY, ALUMINUM ALLOY SPRING, AND FASTENING MEMBER MADE OF ALUMINUM ALLOY

Номер: US20210010111A1
Автор: Nakano Junichi, Suzuki Takeshi
Принадлежит:

An aluminum alloy according to the present invention includes 1.2% by mass to 4.0% by mass of copper, 4.0% by mass to 14.0% by mass of zinc, 0.5% by mass to 4.0% by mass of magnesium, 0.01% or less of silicon, and 0.01% or less of iron, with the balance containing aluminum and inevitable impurities, and has an average equivalent circle crystal grain size of 500 nm or less. 15-. (canceled)6. An aluminum alloy comprising:1.2% by mass to 4.0% by mass of copper, 4.0% by mass to 14.0% by mass of zinc, 0.5% by mass to 4.0% by mass of magnesium, 0.01% by mass or less of silicon, and 0.01% by mass or less of iron, with the balance containing aluminum and inevitable impurities, whereinthe aluminum alloy has an average equivalent circle crystal grain size of 500 nm or less.7. The aluminum alloy according to claim 6 , wherein the aluminum alloy has tensile strength of 780 MPa or more and breaking elongation of 12% or more.8. An aluminum alloy spring claim 6 , comprising{'claim-ref': {'@idref': 'CLM-00006', 'claim 6'}, 'the aluminum alloy according to .'}9. The aluminum alloy spring according to claim 8 , wherein the aluminum alloy has tensile strength of 780 MPa or more and breaking elongation of 12% or more.10. An aluminum alloy fastening member comprising:{'claim-ref': {'@idref': 'CLM-00006', 'claim 6'}, 'the aluminum alloy according to , wherein'}the aluminum alloy fastening member is configured to fasten a plurality of members.11. The aluminum alloy fastening member according to claim 10 , wherein the aluminum alloy has tensile strength of 780 MPa or more and breaking elongation of 12% or more.12. A method of manufacturing an aluminum alloy claim 10 , the method comprising{'claim-ref': {'@idref': 'CLM-00006', 'claim 6'}, 'performing shearing work to the aluminum alloy according to .'}13. The method according to claim 12 , wherein the aluminum alloy has tensile strength of 780 MPa or more and breaking elongation of 12% or more.14. A method of manufacturing an aluminum alloy ...

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Номер записи: 19
14-01-2021 дата публикации

Valve device and shock absorber

Номер: US20210010558A1
Автор: Hidemasa Kato, Ryosuke Kamakura
Принадлежит: KYB Corp

Provided is a valve device and a shock absorber that can prevent them from being in a failure state at the normal time and can freely set a passive valve even when both pressure control and passage opening/closing are performed by a solenoid valve. For this reason, the valve device includes a first passage and a second passage connected downstream of the pressure introducing passage, a solenoid valve that opens the first passage to control the upstream pressure and closes the second passage when energized, and that closes the first passage and opens the second passage when not energized, and a passive valve provided downstream of the solenoid valve in the second passage.

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Номер записи: 20
10-01-2019 дата публикации

CENTRIFUGAL PENDULUM

Номер: US20190011012A1
Автор: Maienschein Stephan
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A centrifugal pendulum includes a pendulum carrier arranged rotatably about an axis of rotation and a plurality of pendulums distributed over a circumference of the pendulum carrier. The plurality of pendulums are received on the pendulum carrier so as to be able to move along pendulum paths with a predefined pendulum mass. A spring element acting in a circumferential direction, and with a predefined spring rate, is provided between two adjacent pendulums in the circumferential direction. The pendulums and the spring elements are adjusted to a predefined excitation order taking into account the gravity acting on the pendulums. 1. A centrifugal pendulum comprising:a pendulum carrier arranged rotatably about an axis of rotation, anda plurality of pendulums distributed over a circumference of the pendulum carrier and received on the pendulum carrier so as to be able to move along pendulum paths, with a predefined pendulum mass, wherein a spring element acting in a circumferential direction, and with a predefined spring rate is provided between two adjacent pendulums in the circumferential direction, wherein the pendulums and the spring elements are adjusted to a predefined excitation order taking into account a gravity acting on the pendulums.2. The centrifugal pendulum as claimed in claim 1 , wherein the excitation order is between 0.70 and 1.30.3. The centrifugal pendulum as claimed in claim 1 , wherein a ratio between spring rate c and pendulum mass m with distance constant kw claim 1 , taking into account acceleration of gravity g claim 1 , has the following relationship:{'br': None, 'i': c*kw', 'm*g, '()/()<10.'}4. The centrifugal pendulum as claimed in claim 1 , wherein a ratio between pendulum mass m and a spacing YS of a center of gravity (S) of the pendulum masses claim 1 , taking into account acceleration of gravity g and spring constant kc claim 1 , has the following relationship:{'br': None, 'i': m*g', 'YS*kc, '0.02<()/)<0.06.'}5. The centrifugal pendulum ...

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Номер записи: 21
03-02-2022 дата публикации

PRELOADED STRUT

Номер: US20220032481A1
Автор: II Richard Allan, Roth, Shelley Stuart J., Sigmund Kevin Joseph
Принадлежит:

A strut suitable for use in parallel manipulator and other applications utilizes an actuation member that is subjected to a quasi-static axial tensioning force to effectively preload the strut to provide axial stiffness and bending flexibility at one or more ends of the strut. 1. A strut , comprising:a rigid tensioning member;a compression spring disposed proximate a first end of the rigid tensioning member; andan actuation member extending through the rigid tensioning member and the compression spring, the actuation member being substantially axially rigid under tension and at least a portion of the actuation member extending through the compression spring being substantially flexible in bending or compression, wherein the actuation member is preloaded through the compression spring and the rigid tensioning member with a quasi-static axial tensioning force such that the actuation member remains substantially axially rigid in response to application of an axial compressive force to the strut that is less than the quasi-static tensioning force.2. The strut of claim 1 , further comprising a tensioner coupled to a first end of the actuation member proximate the compression spring to apply the quasi-static tensioning force to the actuation member.3. The strut of claim 2 , wherein the first end of the actuation member is threaded claim 2 , and wherein the tensioner comprises a nut that is threadably engaged with the first end of the actuation member.4. The strut of claim 1 , wherein the rigid tensioning member comprises a rigid tensioning tube.5. The strut of claim 4 , wherein the rigid tensioning tube comprises a carbon fiber tube.6. The strut of claim 1 , wherein the compression spring comprises an elastomeric spring.7. The strut of claim 1 , wherein the compression spring comprises a coiled spring.8. The strut of claim 1 , wherein the compression spring comprises a conical spring washer.9. The strut of claim 1 , wherein the actuation member comprises a braided metal ...

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Номер записи: 22
17-01-2019 дата публикации

ENGINE MOUNT

Номер: US20190016205A1
Автор: YOON Hyoung Jin
Принадлежит:

An engine mount includes: an insulator disposed in a case which has a liquid chamber; an orifice plate dividing the liquid chamber into an upper liquid chamber and a lower liquid chamber, the orifice plate dividing the upper liquid chamber together with the insulator and having an orifice therein for inducing flow of fluid between the upper liquid chamber and the lower liquid chamber; and a diaphragm disposed under the orifice plate inside the case, the diaphragm dividing the lower liquid chamber together with the orifice plate. The orifice plate has a direct passage for enabling the upper liquid chamber and the lower liquid chamber to directly communicate with each other so that liquid flows between the upper liquid chamber and the lower liquid chamber, and includes an opening/closing piston for opening or closing the direct passage. 1. An engine mount comprising:an insulator disposed in a case which has a liquid chamber;an orifice plate dividing the liquid chamber into an upper liquid chamber and a lower liquid chamber, the orifice plate forming the upper liquid chamber together with the insulator and having an orifice therein for inducing flow of fluid between the upper liquid chamber and the lower liquid chamber; anda diaphragm disposed under the orifice plate inside the case, the diaphragm forming the lower liquid chamber together with the orifice plate,wherein the orifice plate has a direct passage for enabling the upper liquid chamber and the lower liquid chamber to directly communicate with each other so that liquid flows between the upper liquid chamber and the lower liquid chamber, and includes an opening/closing piston for opening or closing the direct passage,and wherein the opening/closing piston includes:a coil mounted inside the orifice plate and generating magnetic force when current is applied thereto; andan opening/closing cylinder selectively opening or closing the direct passage by moving depending on whether current is applied to the coil and ...

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Номер записи: 23
21-01-2021 дата публикации

SWITCHING VALVE FOR AN AIR SPRING ARRANGEMENT AND AN AIR SPRING ARRANGEMENT

Номер: US20210016622A1
Автор: Sprengel Thomas
Принадлежит: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT

A switching valve for an air spring arrangement of a motor vehicle, which switching valve has a valve housing arrangement which, in the installed state, is arranged between a first air volume and a second air volume. A valve closing member arrangement is actuatable by an actuator is provided such that the valve closing member arrangement, in a first position, fluidically connects the first air volume to the second air volume and, in a second position, fluidically separates the first air volume from the second air volume. The valve closing member arrangement is designed as a rotary slide arrangement. A rotary slide member with first openings is provided between two valve closing bodies, wherein, in the first position, the first openings correspond with second openings of the valve closing body such that a fluidic connection can be produced between the first and the second air volume. 1. A switching valve for an air spring arrangement of a motor vehicle , the switching valve comprising:a valve housing arrangement which, in an installed state, is arranged between a first air volume and a second air volume,a valve closing member arrangement which is actuatable by way of an actuator, between a first position that fluidically connects the first air volume to the second air volume and, a second position that fluidically separates the first air volume from the second air volume,wherein the valve closing member arrangement is a rotary slide arrangement comprising two valve closing bodies and a rotary slide member with first openings and disposed between the two valve closing bodies,wherein, in the first position, the first openings register with second openings of the valve closing bodies such that a fluidic connection is produced between the first and the second air volume,wherein the rotary slide member and the two valve closing bodies have interacting sealing surfaces which are directed toward one another and which each have at least one helical run-on surface, which run- ...

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Номер записи: 24
17-04-2014 дата публикации

Damper with digital valve

Номер: US20140102842A1
Автор: Daniel T. Keil, Darrell G. Breese, Jeffrey T. Gardner, Jeroen K. Paenhuysen, Karl C. Kazmirski, Matthew L. Roessle, Thomas P. Mallin
Принадлежит: Tenneco Automotive Operating Co Inc

A shock absorber has a compression valve assembly that provides a high damping load during a compression stroke and an extension valve assembly that provides a high damping load during an extension stroke. One or more digital valve assemblies is positioned to work in parallel with the compression valve assembly and the extension valve assembly to provide a lower damping load. The lowering of the damping load is based upon the cross sectional area of flow passages provided by the one or more digital valve assemblies.

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Номер записи: 25
16-01-2020 дата публикации

ALUMINUM ALLOY MATERIAL, AND CONDUCTIVE MEMBER, CONDUCTIVE COMPONENT, SPRING MEMBER, SPRING COMPONENT, SEMICONDUCTOR MODULE MEMBER, SEMICONDUCTOR MODULE COMPONENT, STRUCTURAL MEMBER AND STRUCTURAL COMPONENT INCLUDING THE ALUMINUM ALLOY MATERIAL

Номер: US20200017938A1
Автор: Kaneko Hiroshi
Принадлежит: FURUKAWA ELECTRIC CO., LTD.

An object of the present disclosure is to provide a high strength aluminum alloy material having a ribbon shape, which can be an alternative to copper-based materials and iron-based materials having a ribbon shape, and a conductive member, a conductive component, a spring member, a spring component, a semiconductor module member, a semiconductor module component, a structural member and a structural component including the aluminum alloy material. The aluminum alloy material of the present disclosure has an alloy composition containing Mg: 0.2% to 1.8% by mass, Si: 0.2% to 2.0% by mass, and Fe: 0.01% to 1.50% by mass, with the balance being Al and inevitable impurities, wherein the aluminum alloy material has a Vickers hardness (HV) of 90 or more and 190 or less and has a ribbon shape. 1. An aluminum alloy material having an alloy composition comprising Mg: 0.2% to 1.8% by mass , Si: 0.2% to 2.0% by mass , and Fe: 0.01% to 1.50% by mass , with the balance being Al and inevitable impurities ,wherein the aluminum alloy material has a Vickers hardness (HV) of 90 or more and 190 or less and has a ribbon shape.2. An aluminum alloy material having an alloy composition comprising Mg: 0.2 to 1.8% by mass , Si: 0.2 to 2.0% by mass , Fe: 0.01 to 1.50% by mass , and at least one element selected from Ti , B , Cu , Ag , Zn , Ni , Co , Au , Mn , Cr , V , Zr and Sn: 0.00 to 2% by mass in total , with the balance being Al and inevitable impurities ,wherein the aluminum alloy material has a Vickers hardness (HV) of 90 or more and 190 or less and has a ribbon shape.3. An aluminum alloy material having an alloy composition comprising Mg: 0.2 to 1.8% by mass , Si: 0.2 to 2.0% by mass , Fe: 0.01 to 1.50% by mass , and at least one element selected from Ti , B , Cu , Ag , Zn , Ni , Co , Au , Mn , Cr , V , Zr and Sn: 0.02 to 2% by mass in total , with the balance being Al and inevitable impurities ,wherein the aluminum alloy material has a Vickers hardness (HV) of 90 or more and 190 or ...

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Номер записи: 26
16-01-2020 дата публикации

ENERGY ABSORPTION MEMBER

Номер: US20200018373A1
Автор: HARASHIMA Shunsuke, Hirayama Norio, SAKATA Kazuhiro, SANO Kazunori
Принадлежит:

An energy absorption member () includes a hollow cylindrical fiber-reinforced composite material including reinforcement fibers (), in which tensile strength S (GPa), tensile modulus of elasticity M (GPa), and elongation rate E (%) satisfy the following expression (1), and a curable resin composition with which the reinforcement fibers () are impregnated. The volume content of the reinforcement fibers () in the fiber-reinforced composite material is 30 to 80%. 1. An energy absorption member comprising a hollow cylindrical fiber-reinforced composite material comprising reinforcement fibers , in which tensile strength S (GPa) , tensile modulus of elasticity M (GPa) , and elongation rate E (%) satisfy the following expression (1) , and a curable resin composition with which the reinforcement fibers are impregnated; {'br': None, 'i': ≤S', '×M', '/E, 'sup': 2', '1/8', '1/2, '11.0≤22.0 \u2003\u2003(1)'}, 'wherein a volume content of the reinforcement fibers in the fiber-reinforced composite material is 30 to 80%.'}2. The energy absorption member according to claim 1 , wherein a plurality of the reinforcement fibers are disposed in the fiber-reinforced composite material in spiral forms and in directions crossing each other claim 1 , anda crossing angle of the reinforcement fibers crossing each other is 100° or more and 160° or less.3. The energy absorption member according to claim 1 , wherein a plurality of the reinforcement fibers are disposed in the fiber-reinforced composite material in spiral forms and in directions crossing each other claim 1 , anda crossing angle of the reinforcement fibers crossing each other is 70° or more and less than 100°.4. The energy absorption member according to claim 1 , wherein the volume content of the reinforcement fibers in the fiber-reinforced composite material is 50 to 70%.5. The energy absorption member according to claim 1 , wherein the reinforcement fiber is a glass fiber claim 1 , and{'sub': 2', '2', '3, 'the glass fiber ...

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Номер записи: 27
10-02-2022 дата публикации

Damper device

Номер: US20220042550A1
Автор: Hiroshi Uehara
Принадлежит: Exedy Corp

A damper device includes first and second rotors, and an elastic coupling part elastically coupling the two rotors. The elastic coupling part includes first and second elastic members initially disposed in a compressed state in a neutral condition without relative rotation between the two rotors. The first elastic member is transitioned from the compressed state to a free state and then further compressed when torsion of the first rotor with respect to the second rotor is caused from the neutral condition to a first side. The second elastic member is transitioned from the compressed state to the free state and then further compressed when the torsion of the first rotor with respect to the second rotor is caused from the neutral condition to a second side. Each of the first and second elastic members is transitioned from a one-side contact state to a both-side contact state when actuated in compressed.

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Номер записи: 28
23-01-2020 дата публикации

Vehicle suspension system

Номер: US20200023704A1
Автор: Tomoya Toyohira
Принадлежит: Honda Motor Co Ltd

A suspension system includes: an electromagnetic damper 2 that is provided between a vehicle body B which is a sprung member of a vehicle and a tire T which is an unsprung member of the vehicle, and applies a damping force and a drive force in a stroke direction to the vehicle body B and the tire T by a motor; an unsprung member acceleration sensor that detects unsprung member acceleration in the stroke direction of the tire; and an ECU that controls the motor. The ECU controls the motor to generate a load F m in such a direction that increases the relative velocity of the vehicle body B with respect to the tire T and of an amount corresponding to the unsprung member acceleration.

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Номер записи: 29
23-01-2020 дата публикации

Mount assembly with electro-magnetorheological switchable displacement elements

Номер: US20200023731A1
Автор: Sam M. Jomaa, Wojciech E. Suchta
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system and method using a mount assembly for attaching a powertrain to a structural member of a vehicle. The mount assembly includes a first compliant member, a second compliant member, a first fluid chamber, a second fluid chamber, a pressure compliant membrane, electro-magnetorheological switch and a magnetorheological fluid. A fluid conduit interconnects the first fluid chamber with the second fluid chamber to allow a fluid to pass from the first fluid chamber to the second fluid chamber. The pressure compliant membrane seals the aperture in the second fluid chamber. The electro-magnetorheological switch is activated to generate an electric field in the fluid conduit to change the viscosity of the magnetorheological fluid to achieve a first stiffness profile of the mount assembly. The electro-magnetorheological switch is deactivated to remove the electric field in the fluid conduit to change the viscosity of the magnetorheological fluid to achieve a second stiffness profile of the mount assembly.

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Номер записи: 30
23-01-2020 дата публикации

Mount assembly with electro-hydro-pneumatic switchable displacement elements

Номер: US20200023732A1
Автор: Craig W. Lewitzke, Daniel G. Gannon, Sam M. Jomaa, Wojciech E. Suchta
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system and method using a mount assembly for attaching a powertrain to a structural member of a vehicle. The mount assembly includes a first compliant member, a second compliant member, a first fluid chamber, a second fluid chamber, a third fluid chamber, a pressure compliant membrane, and a valve. A fluid conduit interconnects the first fluid chamber with the second fluid chamber to allow a fluid to pass from the first fluid chamber to the second fluid chamber. The third fluid chamber has an opening in communication with the second fluid chamber and a vent port. The pressure compliant membrane seals the opening between the second fluid chamber and the third fluid chamber. The valve selectively seals the vent port in the third fluid chamber. A first stiffness profile of the mount assembly is selected by actuating the valve to open the vent port. A second stiffness profile of the mount assembly is selected by actuating the valve to close the vent port.

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Номер записи: 31
24-01-2019 дата публикации

VIBRATION ABSORBER HAVING AN ELECTROMAGNETIC BRAKE FOR WIND TURBINES

Номер: US20190024535A1
Автор: MITSCH Franz
Принадлежит:

A vibration absorber which, in the broadest sense, is based on a pendulum device for dampening undesirable vibrations which occur in a very slender structure, such as a wind turbine. The undesirable vibrations are caused by an acting force, in particular wind force. The invention thereby relates to vibration absorbers in which the pendulum mass can be temporarily stopped or braked, either entirely or partially, by an electromagnetic brake. The power supply or the current regulation of the electromagnetic brake correspondingly controls the braking function of the electromagnetic brake. 122-. (canceled)23. A vibration absorber for damping vibrations in a wind turbine , which has at least one pendulum device , comprising:{'b': '1', 'claim-text': [{'b': 2', '1, '(i) is attached to a suspension construction () in such a way that the absorber mass () can swing freely, or'}, {'b': 507', '1', '510', '508, '(ii) is connected to a running device (), which is curved in a substantially concave or circular manner at least in its central region and on which the absorber mass () can move to and fro together with a driven rotating, rotationally symmetrical rotation mass component () by a roller- or a wheel-driven running gear (),'}], 'an absorber mass () which'}{'b': 100', '200', '101', '201', '301', '401', '501', '601', '105', '106', '205', '206', '209', '306', '307', '308', '309', '505', '506', '602', '1', '510', '1', '1', '510, 'wherein the vibration damper has an electromagnetic brake device (, ), which comprises an electromagnet (, , , , ), which is attached to a springy retention or guide device (, , , , , , , , , , , ) on the vibration absorber in such a way that, when current flows in the electromagnet, the electromagnet is pulled onto the absorber mass () or onto the rotation mass component (), which is connected to the absorber mass (), until contact occurs, so that the movement of the absorber mass or rotation mass component is thereby braked or stopped, and the ...

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Номер записи: 32
24-01-2019 дата публикации

VIBRATION DAMPING DEVICE AND METHOD OF DESIGNING THE SAME

Номер: US20190024752A1
Автор: Nagai Hiroki, OI Yoichi, SAKAMOTO Takao, WAJIMA Masaki
Принадлежит: AISIN AW CO., LTD.

A vibration damping device including: a support member rotating with a rotary element to which torque from an engine is transferred about the center of rotation of the rotary element; a restoring force generation member coupled to the support member and swingable with rotation of the support member; and an inertial mass body coupled to the support member via the restoring force generation member and swung about the center of rotation in conjunction with the restoring force generation member with rotation of the support member. The order of the vibration damping device is larger than the sum of the excitation order of the engine and an offset value determined in consideration of the effect of oil in the oil chamber. The reference order, which is a convergent value of the order of the vibration damping device, is higher than the excitation order. 1. A vibration damping device disposed in an oil chamber and comprising:a support member that rotates together with a rotary element, to which torque from an engine is transferred, about a center of rotation of the rotary element;a restoring force generation member that is coupled to the support member and that is swingable along with rotation of the support member; and an inertial mass body coupled to the support member via the restoring force generation member and swung about the center of rotation in conjunction with the restoring force generation member along with rotation of the support member, wherein:an order of the vibration damping device is larger than a sum of an excitation order of the engine and an offset value determined in consideration of an effect of oil in the oil chamber; anda reference order, which is a convergent value of the order of the vibration damping device which operates in the oil chamber when an amplitude of vibration of input torque transferred to the rotary element becomes smaller, is higher than the excitation order.2. The vibration damping device according to claim 1 , wherein{'sub': ref', ' ...

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Номер записи: 33
23-01-2020 дата публикации

VIBRATION DAMPING DEVICE AND BOBBIN HOLDER SYSTEM

Номер: US20200025276A1
Автор: ISHIDA Yukio, KAGATA Kakeru, KOJIMA Shogo
Принадлежит: TMT Machinery, Inc.

A vibration damping device which is able to damp vibration of a rotating body in a high-speed range and to certainly accelerate the rotating body to the high-speed range is provided. 1. A vibration damping device damping vibration of a rotating body , comprising:an automatic balancer which is configured to cancel out imbalance of the rotating body when the rotating body rotates;a liquid damper which is coaxially rotatable with the rotating body and includes a collision member provided in a casing in which liquid is sealed, the liquid colliding with the collision member when the liquid moves in a circumferential direction; anda relative rotation unit which is configured to cause the liquid damper to rotate relative to the rotating body.2. The vibration damping device according to claim 1 , wherein claim 1 , an air resistance imparting member which increases air resistance during rotation of the liquid damper is provided as the relative rotation unit.3. The vibration damping device according to claim 2 , wherein claim 2 , the air resistance imparting member is a plate member having a surface intersecting with the rotational direction of the liquid damper.4. The vibration damping device according to claim 3 , wherein claim 3 , the plate member is provided on the outer circumferential surface of the liquid damper.5. The vibration damping device according to claim 3 , wherein claim 3 , the plate member is provided on an end face in the axial direction of the liquid damper.6. The vibration damping device according to claim 1 , wherein claim 1 , a brake mechanism is provided as the relative rotation unit claim 1 , the brake mechanism including:an electromagnetic effect target which is provided on the liquid damper and to which an electromagnetic effect is exerted; andan electromagnetic effector configured to exert the electromagnetic effect to the electromagnetic effect target.7. The vibration damping device according to claim 1 , wherein claim 1 , a gear mechanism is ...

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Номер записи: 34
28-01-2021 дата публикации

TWO-MODE TUNED VIBRATION ABSORBER

Номер: US20210025469A1
Автор: Mendoza Gonzalo E.
Принадлежит:

A bimodal tuned vibration absorber includes a first beam arranged lengthwise in a longitudinal direction. The first beam has an attachment mechanism adapted for mechanically coupling the first beam to a structure. A second beam is arranged lengthwise in a transverse direction, perpendicular to the longitudinal direction. The second beam is mechanically coupled to a first end of the first beam via a first connector. A third beam is arranged lengthwise in the transverse direction and is mechanically coupled to a second end of the first beam, opposite the first end, via a second connector. A two-mode tuned vibration absorber includes a first beam aligned longitudinally with a second beam. A connector is aligned longitudinally and disposed between the first beam and the second beam for mechanically coupling the first beam with the second beam. The connector is adapted for enhancing the bending mode of the two-mode tuned vibration absorber. 1. A bimodal tuned vibration absorber , comprising:a first beam arranged lengthwise in a longitudinal direction, the first beam having an attachment mechanism adapted for mechanically coupling the first beam to a structure;a second beam arranged lengthwise in a transverse direction, perpendicular to the longitudinal direction, the second beam being mechanically coupled to a first end of the first beam via a first connector; anda third beam arranged lengthwise in the transverse direction, the third beam being mechanically coupled to a second end of the first beam, opposite the first end, via a second connector.2. The bimodal tuned vibration absorber of claim 1 , comprising:the second beam having a first mass at a first end of the second beam and a second mass at a second end of the second beam, opposite the first end; andthe third beam having a third mass at a first end of the third beam and a fourth mass at a second end of the third beam, opposite the first end.3. The bimodal tuned vibration absorber of claim 2 , wherein:the second ...

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Номер записи: 35
28-01-2021 дата публикации

Damping valve and shock absorber

Номер: US20210025471A1
Автор: Tomoyasu ABE, Yoshifumi Kobayashi, Yuusuke Furuta
Принадлежит: KYB Corp

A damping valve includes a valve seat member, a first valve element stacked on the valve seat member, a second valve element provided between an inner circumference valve seat of the valve seat member and the first valve element, the second valve element being configured to open and close a hole of the first valve element, and a biasing member configured to bias the first valve element towards the second valve element, wherein a surface of the second valve element on an opposite side from the valve seat member is higher than the outer circumference valve seat of the valve seat member.

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Номер записи: 36
23-01-2020 дата публикации

Active Vibration Absorption System for Absorbing Vibration of a Vibrating Element, Motor Vehicle Having the Active Vibration Absorption System, and Method for Operating the Active Vibration Absorption System

Номер: US20200027438A1
Автор: BOCK Florian, DREFFKE Gerald, HINRICHSEN Lars
Принадлежит: Audi AG

The disclosure relates to an active vibration absorption system for absorbing the vibrations of a vibrating element. The vibration absorption system comprises a structure-borne sound exciter having a coupling element for coupling to the vibrating element and having an electrical coil for moving the coupling element by means of a coil current. The structure-borne sound exciter is designed to provide a measurement signal correlated with a detected induced voltage. Furthermore, the vibration absorption system comprises a control device, which is designed to identify a target current intensity of the coil current in accordance with the measurement signal and to control an actual current intensity of the coil current to the target current intensity. The target current intensity is designed to adjust the motion of the coupling element in such a way that the vibrations of the element are at least partly absorbed. Moreover, the control device is designed to identify a detection component and a control component from the measurement signal and to identify the target current intensity in accordance with the detection component. 110-. (canceled)11. An active vibration absorption system , comprising:a control device;a vibrating element;an electrical coil; anda first structure-borne sound exciter, 'detect an induced voltage in the electrical coil, and provide a measurement signal correlated with the detected induced voltage,', 'wherein the first structure-borne sound exciter comprises a coupling element for coupling to the vibrating element, and the first structure-borne sound exciter is configured to vibrate when the vibrating element is vibrating,', 'induce an electromagnetic current in the electrical coil by a motion, and', 'move in response to a flow of an electrical current in the electrical coil, and, 'wherein the coupling element is configured to receive the measurement signal,', 'identify a first target strength of the electrical current corresponding to the measurement ...

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Номер записи: 37
01-02-2018 дата публикации

CONTROL SYSTEM, SPRAY BAR, CARRIER AND METHOD OF IMPLEMENTATION

Номер: US20180029060A1
Автор: MICK Mathieu, ROUYER Sébastien
Принадлежит: EXEL INDUSTRIES

The present invention relates to a control system () provided to a spray bar () mounted on a carrier () at an angle (α) adjustable relative to the carrier (), the control system () comprising an actuator for changing the angle (α) of the spray bar (); a control device for controlling the actuator; and a damping device connected to the actuator to damp vibrations and oscillations of the spray bar () and thus stabilize the angle (α). The invention is characterized in that the control system () further comprises a recharging device operating simultaneously with the control device to compensate for a pressure change in the damping device during a change in the angle (α) of the spray bar (). The invention also relates to a spray bar (), a carrier () and a method of implementation. 1. A control system , provided to equip a spray bar mounted on a carrier and having an adjustable angle relative to the carrier , the control system comprising:an actuator to change the angle of the spray bar;a control device to control the actuator;a damping device connected to the actuator to damp vibrations and oscillations of the spray bar and thus to stabilize the angle; anda recharging device operating simultaneously with the control device to compensate for a pressure change in the damping device during a change in the angle of the spray bar.2. The control system according to claim 1 , wherein the modification of the angle of the spray bar results from a by operator manual actuation for a tilt correction function.3. The control system according to claim 1 , wherein the modification of the angle of the spray bar results from an automatic actuation for a tilt correction function.4. The control system according to claim 1 , wherein the recharging device comprises a distributor including a non-return position and a circulation position.5. The control system according to claim 4 , wherein the recharging device also comprises a direct-action adjustable pressure limiter and a check valve claim ...

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Номер записи: 38
01-02-2018 дата публикации

HYDRAULIC ANTIVIBRATING DEVICE

Номер: US20180031073A1
Автор: Bellamy Alain, Lemaire Gabriel
Принадлежит: HUTCHINSON

Vibration damping device comprising two frames and an elastomer body that connects frames together and which delimits a first hydraulic chamber that communicates with a second hydraulic chamber that can be deformed by a constricted passage. An electromagnetic actuator, that controls the vibration damping behaviour of the device, comprises a suction cup with a permanent magnet. 1. A hydraulic vibration damping device intended to be inserted for the purposes of damping between first and second rigid elements , with this vibration damping device comprising:first and second frames intended to be fixed to the two rigid elements to be joined,an elastomer body that connects first and second frames together and which delimits at least partially a first hydraulic chamber,a second hydraulic chamber which is delimited by a deformable wall and which communicates with the first hydraulic chamber by the intermediary of a constricted passage, with the first and second hydraulic chambers and with the constricted passage forming a hydraulic circuit filled with liquid,an electromagnetic actuator suited to control the vibration damping behaviour of the vibration damping device,wherein said actuator comprises a suction cup with a permanent magnet comprising:a magnetic circuit including an actuating member mobile entre a first position and a second position,at least one spring soliciting the actuating member with a first force directed towards the first position,a permanent magnet creating a permanent magnetic field in the magnetic circuit and soliciting the actuating member with a second force directed towards the second position, with the first force being greater than the second force when the actuating member is in the first position and with the second force being greater than the first force when the actuating member is in the second position,at least one coil electrically supplied by a control device, with the control device being suited to selectively either increase said ...

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Номер записи: 39
17-02-2022 дата публикации

DAMPER ASSEMBLY

Номер: US20220049753A1
Автор: Deferme Stefan
Принадлежит:

A damper assembly includes a damper, an accumulator, and a tube mount. The damper includes a tube having an outer surface. The tube defines a central axis and a first cavity in the outer surface. The accumulator has an end defining a second cavity. The accumulator defines a longitudinal axis. The tube mount is attached to the outer surface of the tube around the first cavity. The tube includes a damper fluid. The end of the accumulator is supported by the tube mount to allow the damper fluid to flow from the tube through the first cavity and into the accumulator through the second cavity. The longitudinal axis of the accumulator is transverse to the central axis of the tube. 1. A damper assembly , comprising:a damper including a tube having an outer surface, the tube defining a central axis and a first cavity in the outer surface;an accumulator having an end defining a second cavity, the accumulator defining a longitudinal axis; anda tube mount attached to the outer surface of the tube around the first cavity;wherein the tube includes a damper fluid;wherein the end of the accumulator is supported by the tube mount to allow the damper fluid to flow from the tube through the first cavity and into the accumulator through the second cavity;wherein the longitudinal axis of the accumulator is transverse to the central axis of the tube.2. The damper assembly of claim 1 , wherein the tube mount includes a ring claim 1 , and the accumulator is supported by the ring.3. The damper assembly of claim 2 , wherein the end of the accumulator is welded to the ring.4. The damper assembly of claim 1 , wherein the tube mount and the end of the accumulator form a fluid-tight seal.5. The damper assembly of claim 1 , wherein the tube mount and the end of the accumulator form a substantially circular seal.6. The damper assembly of claim 1 , wherein the accumulator includes a piston and the damper fluid is movable into the accumulator to move the piston.7. The damper assembly of claim 1 , ...

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Номер записи: 40
17-02-2022 дата публикации

Damper assembly

Номер: US20220049754A1
Автор: Jacobus Schel
Принадлежит: Driv Automotive Inc

A damper includes a pressure tube extending about a longitudinal axis and defining an inner volume. The damper includes a piston attached to a piston rod and slidably disposed within the pressure tube. The piston divides the inner volume of the pressure tube into a first working chamber and a second working chamber. The damper includes a fluid connector having a first wall and a second wall, each elongated along the longitudinal axis and sealed to the pressure tube. The fluid connector has a third wall elongated along the longitudinal axis and extending from the first wall to the second wall. The pressure tube defines an opening at the first working chamber, and the third wall of the fluid connector defines an opening spaced from the opening of the pressure tube. The first wall, the second wall, and the third wall define a passage extending from the opening of the pressure tube to the opening of the third wall.

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Номер записи: 41
30-01-2020 дата публикации

HYDRAULIC VIBRATION DAMPER, IN PARTICULAR FOR A VEHICLE CHASSIS

Номер: US20200031190A1
Автор: HAMERS Wolfgang
Принадлежит:

A hydraulic vibration damper, in particular for a vehicle chassis, includes a cylinder tube for receiving a hydraulic fluid. A piston is axially movable within the cylinder tube along a cylinder tube axis and subdivides the cylinder tube into two working chambers. A piston rod is oriented parallel to the cylinder tube axis and is connected to the piston. At least one valve assembly for damping the piston movement in a direction of actuation is arranged at a fluid leadthrough. A bypass duct includes a sub-duct provided in addition to the fluid leadthrough between the two working chambers. A valve arrangement with continuously adjustable damping force is provided which regulates the throughflow through the fluid leadthrough and the sub-duct. The sub-duct includes a throttling mechanism, having a throttle, and a non-return valve. The throttle and the non-return valve of the sub-duct are arranged in series. 114.-. (canceled)15. A hydraulic vibration damper , in particular for a vehicle chassis , comprising:a cylinder tube shaped and sized to receive a hydraulic fluid,a piston that is axially movable within the cylinder tube along a cylinder tube axis and subdivides the cylinder tube into two working chambers,a piston rod that is oriented parallel to the cylinder tube axis and is connected to the piston,a valve assembly is arranged at a fluid leadthrough and is configured to damp the piston movement in a direction of actuation,a bypass duct that includes a sub-duct is provided in addition to the fluid leadthrough between the two working chambers, anda valve arrangement configured to generate a continuously adjustable damping force is configured to regulate the throughflow through the fluid leadthrough and the sub-duct,wherein the sub-duct comprises a throttling mechanism, the throttling mechanism having a throttle and a non-return valve arranged in series with respect to one another.16. The hydraulic vibration damper of claim 15 , wherein the non-return valve has a ...

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Номер записи: 42
04-02-2021 дата публикации

POWERTRAIN PROACTIVE DAMPING SYSTEM USING MAGNETO RHEOLOGICAL MATERIALS

Номер: US20210031584A1
Автор: Del Real Ibanez Luis Javier, Rodriguez Mauricio Jorge de Jesus, Santana Castaneda Cesar Alejandro
Принадлежит: CONTINENTAL AUTOMOTIVE SYSTEMS, INC.

A vehicle powertrain proactive damping system includes a plurality of proactive damping structures mounted on a powertrain structure with each proactive damping structure includes a magneto rheological elastomer (MRE). An electromagnet is associated with each proactive damping structure. A control unit includes a processor circuit. A sensor obtains vibration data regarding the powertrain structure. A LIDAR sensor is mounted on the vehicle and is electrically connected with the control unit. The LIDAR sensor provides data to the control unit indicative of upcoming road surface conditions to be experienced by the vehicle. Based on data from at the sensor and the LIDAR sensor, the processor circuit is constructed and arranged to control voltage to the electromagnets to selectively adjust a rigidity of the associated proactive damping structure so as to control vibrational effects on the powertrain structure. 1. A vehicle powertrain proactive damping system , comprising:a plurality of proactive damping structures mounted on a powertrain structure of the vehicle, each proactive damping structure comprising a magneto rheological elastomer (MRE),an electromagnet associated with each proactive damping structure,a control unit including a processor circuit,at least one sensor constructed and arranged to obtain vibration data regarding the powertrain structure, the at least one sensor being electrically connected with the control unit, anda LIDAR sensor mounted on the vehicle and electrically connected with the control unit, the LIDAR sensor being constructed arid arranged to provide data to the control unit indicative of upcoming road surface conditions to be experienced by the vehicle,wherein, based on data from at the least one sensor and the LIDAR sensor, the processor circuit is constructed and arranged to proactively control voltage to the electromagnets to selectively adjust a rigidity of the associated proactive damping structure so as to control vibrational effects ...

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Номер записи: 43
31-01-2019 дата публикации

DAMPING FORCE VARIABLE VALVE

Номер: US20190032743A1
Автор: Sakai Kosuke
Принадлежит: AISIN SEIKI KABUSHIKI KAISHA

A damping force variable valve includes: a case that accommodates a working fluid therein; and a housing that divides an inside of the case into a first fluid chamber and a second fluid chamber. The housing includes first and second housings, which are adjacent to each other along a direction of an axis of the case. Inside the first housing, a control mechanism that controls an operation speed of the housing by adjusting a flow rate of the working fluid circulating through the first fluid chamber and the second fluid chamber is provided. The control mechanism includes: a first pilot chamber that communicates with the first fluid chamber through a first orifice; a second pilot chamber that communicates with the second fluid chamber through a second orifice; and a valve body that changes a posture while separating the first pilot chamber and the second pilot chamber from each other. 1. A damping force variable valve comprising:a case that accommodates a working fluid therein; anda housing that divides an inside of the case into a first fluid chamber and a second fluid chamber,wherein the housing includes a first housing and a second housing, which are adjacent to each other along a direction of an axis of the case,inside the first housing, a control mechanism that controls an operation speed of the housing by adjusting a flow rate of the working fluid circulating through the first fluid chamber and the second fluid chamber is provided, a first pilot chamber that communicates with the first fluid chamber through a first orifice;', 'a second pilot chamber that communicates with the second fluid chamber through a second orifice; and', 'a valve body that changes a posture while separating the first pilot chamber and the second pilot chamber from each other, and, 'the control mechanism includesinside the second housing, an adjustment mechanism which adjusts a degree of change in the posture of the valve body so as to set an amount of circulation of the working fluid ...

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Номер записи: 44
31-01-2019 дата публикации

Damping Adjusting System With Perpendicular Seal Ring

Номер: US20190032744A1
Автор: Bergfeld Bjorn
Принадлежит: Kendrion (Villingen) GmbH

The application provides a damping adjusting system having a guide tube which is arranged in an outer housing and which comprises a lateral outer wall. The interior of the guide tube being delimited at the end face by a base part. The guide tube can also have a magnet coil; an electromagnetically movable armature which is guided in the guide tube along a movement axis; an exterior which surrounds the outer housing; and a ventilation bore which connects the interior to the exterior and which is guided through the base part and the outer housing. The ventilation bore has two interconnected sections. A first section is guided through the base part and the first section has a first opening arranged on the base part on the interior side and a second opening arranged on the lateral outer wall, and a second section is guided through the outer housing. 2. The damping adjusting system of claim 1 , wherein the first opening is arranged facing in the direction of the movement axis and the second opening is arranged facing perpendicular to the movement axis.3. The damping adjusting system of claim 1 , wherein the second opening is located frontally opposite to an opening of the second section oriented toward the inner wall of the outer housing.4. The damping adjusting system of claim 1 , wherein the first venting borehole section has a first subsection claim 1 , which is led in a straight line and is open toward the inner chamber of the guide tube claim 1 , and a second subsection claim 1 , which is led in a straight line and is open toward the lateral outer wall of the guide tube and extends at an angle to the first subsection through the bottom part of the guide tube.5. The damping adjusting system of claim 4 , wherein an angle between the first subsection and the second subsection is a substantially right angle.6. The damping adjusting system of claim 4 , wherein the first subsection claim 4 , the second subsection claim 4 , or both the first subsection and the second ...

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Номер записи: 45
30-01-2020 дата публикации

DAMPING FORCE ADJUSTABLE SHOCK ABSORBER

Номер: US20200032871A1
Автор: YAMASHITA MIKIO
Принадлежит:

[Problem] The present invention provides a damping force adjustable shock absorber capable of reducing manufacturing cost. 12-. (canceled)3. A damping force adjustable shock absorber comprising:a cylinder sealingly containing hydraulic fluid therein;a piston slidably and fittedly mounted inside the cylinder and partitioning an inside of the cylinder into two chambers, a one-side chamber and an opposite-side chamber;a piston rod having one end coupled with the piston and an opposite end protruding out of the cylinder;a first passage and a second passage establishing communication between the two chambers in the cylinder;a first main valve configured to generate a damping force against a flow of the fluid in the first passage that is generated when the piston in the cylinder moves to one side;a second main valve configured to generate a damping force against a flow of the fluid in the second passage that is generated when the piston in the cylinder moves to an opposite side; anda control valve configured to be driven by a solenoid and control the damping force that is generated when the piston in the cylinder moves to the one side and the opposite side,wherein the first main valve includesa damping valve configured to generate the damping force by restricting the flow of the hydraulic fluid flowing via the first passage when the piston moves to the one side,a back-pressure chamber configured to apply an inner pressure to the damping valve in a valve-closing direction, anda back-pressure chamber introduction passage configured to introduce the hydraulic fluid from a chamber on an upstream side toward a back-pressure chamber side,wherein the control valve includesa tubular case member slidably containing a plunger configured to be driven by the solenoid therein, the tubular case member being opened on one end side thereof,a valve seat member including an annular valve seat provided on a side facing the opening, the valve seat having an inner peripheral side in ...

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Номер записи: 46
04-02-2021 дата публикации

DAMPING FORCE GENERATING MECHANISM, MANUFACTURING METHOD FOR DAMPING FORCE GENERATING MECHANISM, AND PRESSURE SHOCK ABSORBER

Номер: US20210033163A1
Автор: NAKANO Gota, YANAGISAWA Chikara
Принадлежит: Showa Corporation

A damping force generating mechanism includes: a flow passage formation part that forms a flow passage through which a liquid flows; a valve configured to control a flow of the liquid in the flow passage; a back pressure control valve configured to control a pressure in a back pressure chamber that provides a back pressure to the valve by inflow of the liquid; and an accommodation part that is in a tubular shape with one side opening end narrower than another side opening end, forms the back pressure chamber, and accommodates at least the valve and the back pressure control valve. 1. A damping force generating mechanism comprising:a flow passage formation part that forms a flow passage through which a liquid flows;a valve configured to control a flow of the liquid in the flow passage;a back pressure control valve configured to control a pressure in a back pressure chamber that provides a back pressure to the valve by inflow of the liquid;a pressing part configured to press the back pressure control valve in a direction in which the back pressure control valve closes;an operation part configured to push out a plunger toward the pressing part in accordance with an energized state in order to press the back pressure control valve by the pressing part in the direction in which the back pressure control valve closes; andan accommodation part that is in a tubular shape with one side opening end narrower than another side opening end, forms the back pressure chamber, accommodates at least the valve and the back pressure control valve, and includes an expansion accommodation part extending from the one side opening end and accommodating the operation part.2. A damping force generating mechanism comprising:a flow passage formation part that forms a flow passage through which a liquid flows;a valve configured to control a flow of the liquid in the flow passage;a back pressure control valve configured to control a pressure in a back pressure chamber that provides a back ...

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Номер записи: 47
04-02-2021 дата публикации

MAGNETORHEOLOGICAL HYDRAULIC DAMPER WITH PASSIVE DAMPING CHAMBER

Номер: US20210033165A1
Автор: II Marcin, KNAPCZYK
Принадлежит:

A damper assembly comprises a main tube extending along a center axis defining a fluid chamber. A main piston is located in the main tube dividing the fluid chamber into a compression chamber and a rebound chamber. A piston rod extends into the main tube and coupled to the main piston. The piston rod defines an annular chamber extending along the center axis. A slidable partition is located in the annular chamber dividing the annular chamber into a magnetorheological chamber and a compensation chamber. A secondary piston is slidably disposed in the magnetorheological chamber dividing the magnetorheological chamber into a magnetorheological compression chamber and a magnetorheological rebound chamber. A secondary piston rod sealingly and slidably guided through the main piston and couples to the main tube for moving the secondary piston axially in the magnetorheological chamber. 1. A damper assembly comprising:a main tube extending along a center axis defining a fluid chamber for containing a working fluid;a main piston located in said main tube dividing said fluid chamber into a compression chamber and a rebound chamber;a piston rod extending into said main tube through a piston rod guide and coupled to said main piston for moving said main piston between a compression stroke and a rebound stroke, said piston rod defining an annular chamber extending along said center axis;a slidable partition located in said annular chamber dividing said annular chamber into a magnetorheological chamber and a compensation chamber, said magnetorheological chamber being proximal relative to said main piston for containing a magnetorheologial fluid, said compensation chamber being distal relative to said main piston for containing a gas;a secondary piston slidably disposed in said magnetorheological chamber dividing said magnetorheological chamber into a magnetorheological compression chamber and a magnetorheological rebound chamber, said magnetorheological compression chamber ...

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Номер записи: 48
04-02-2021 дата публикации

METHOD AND SYSTEM FOR QUANTIFYING DYNAMIC RESPONSE CHARACTERISTICS OF A REAL-TIME DAMPER

Номер: US20210033494A1
Автор: OBLIZAJEK KENNETH L.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for quantifying dynamic response characteristics of a real-time damper includes positioning the damper between a stationary member and a moveable member of a shock press having a force transducer, and transmitting motion control signals to the shock press, via a test controller, to stroke the moveable member and cause the damper to move with a constant velocity between extremes of stroke. A test drive signal is transmitted to the damper for a calibrated test duration. The test drive signal has a calibrated discrete frequency, frequencies, or a frequency sweep range. The method includes measuring, via the force transducer, a force component of the damper while transmitting the test drive signal, and quantifying the response characteristics of the damper over the test duration, including recording the response characteristics in a memory device. A test system includes a shock press, force transducer, and test controller. 1. A method for quantifying dynamic response characteristics of a real-time damper , the method comprising:positioning the real-time damper between a stationary member and a moveable member of a shock press having a force transducer;transmitting motion control signals to the shock press, via a test controller, to thereby stroke the moveable member and the real-time damper with a constant velocity between consecutive extremes of stroke;transmitting a test drive signal to the real-time damper for a calibrated test duration, via the test controller, wherein the test drive signal has a calibrated test frequency, dwell points at multiple calibrated frequencies, or a swept range of test frequencies;measuring, via the force transducer, a force component along a longitudinal axis of the real-time damper while transmitting the test drive signal; andquantifying the dynamic response characteristics of the real-time damper over the calibrated test duration, as a quantified dynamic response, including recording the dynamic response characteristics in a ...

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Номер записи: 49
09-02-2017 дата публикации

HYDRAULIC SHOCK ABSORBER WITH COMPRESSION FILTERING

Номер: US20170037923A1
Автор: Sirven Francois, Sirven Jacques, Sirven Marc, Sirvin Aude
Принадлежит:

The invention relates to a shock absorber (), in particular for a motor vehicle, which comprises: a cylinder () containing a hydraulic fluid; a main piston () actuated by a rod (), defining in the cylinder a first main chamber () and a second main chamber (), the second main chamber containing the rod; a hydraulic fluid vessel (); and a valve () placed in the flow of the hydraulic fluid between the first main chamber and the second main chamber or between the first main chamber and the vessel. The valve comprises a mobile gate () engaging with a seat (), a spring () tending to urge the gate against the seat thereof, and a mobile valve piston (), defining a first valve chamber () and a second valve chamber () in the valve, said mobile valve piston being capable of compressing the spring and closing the gate. The shock absorber also includes a control restriction () mounted in the flow of the hydraulic fluid from the first main chamber () during a compression movement, the control restriction being capable of generating a pressure difference acting on the respective surfaces of the mobile valve piston in a direction that tends to compress the spring during a compression movement and a means () for slowing the movement of the mobile valve piston (). 112435624111413201778188219831551778. A shock absorber () , notably for a motor vehicle , comprising a cylinder () containing a hydraulic fluid , a main piston () actuated by a rod () , defining within the cylinder a first main chamber () and a second main chamber () , the second main chamber containing the rod , a reservoir of hydraulic fluid () and a valve () placed in the flow of hydraulic fluid between the first main chamber and the second main chamber or between the first main chamber and the reservoir , the valve comprising a mobile shutter () collaborating with a seat () , a spring () tending to press the valve shutter onto its seat , and a mobile valve piston ( , ) defining within the valve a first valve chamber ( , ...

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Номер записи: 50
09-02-2017 дата публикации

VIBRATION ISOLATING DEVICE FOR AN ELASTIC COUPLING OF TWO COMPONENTS

Номер: US20170037927A1
Автор: BUESING Moritz
Принадлежит:

A vibration isolating device that is adapted for an elastic coupling of a first component to a second component and for vibration isolation in predetermined frequency ranges between the first and second components, the vibration isolating device comprising at least a first and a second elastically deformable plate that are attached to each other in at least two separate connecting points, the first elastically deformable plate comprising a first curvature and the second elastically deformable plate comprising a second curvature, wherein the first and second curvatures are respectively located in a region between the at least two separate connecting points and arranged such that a gap is defined between the first and second elastically deformable plates. 1. A vibration isolating device that is adapted for an elastic coupling of a first component to a second component and for vibration isolation in predetermined frequency ranges between the first and second components , the vibration isolating device comprising at least a first and a second elastically deformable plate that are attached to each other in at least two separate connecting points , the first elastically deformable plate comprising a first curvature located in a region between the at least two separate connecting points and the second elastically deformable plate comprising a second curvature located in a region between the at least two separate connecting points , wherein the first and second curvatures are arranged such that a gap is defined between the first and second elastically deformable plates in the regions between the at least two separate connecting points , and wherein the first and second curvatures are adapted to be reduced in operation if a tension force that moves the at least two separate connecting points away from each other is applied to the vibration isolating device , and wherein the first and second curvatures are adapted to be increased in operation if a compression force that moves ...

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Номер записи: 51
09-02-2017 дата публикации

CENTRIFUGAL PENDULUM-TYPE VIBRATION ABSORBING DEVICE AND ORDER SETTING METHOD FOR THE SAME

Номер: US20170037929A1
Автор: ITOU Kazuhiro, Nagai Hiroki, OI Yoichi, TAKIKAWA Yoshihiro
Принадлежит: AISIN AW CO., LTD.

A centrifugal pendulum-type vibration absorbing device includes a support member that is coupled to a driven member that is a rotary element that rotates by means of power from an engine and a mass body that is coupled to the support member so as to oscillate about a pendulum fulcrum PF and is designed so as to have an effective order qthat is greater by a correction amount Δq that is at least associated with the non-linearity of an order q of vibration of the centrifugal pendulum-type vibration absorbing device that is dependent on an oscillation angle φ of the mass body than an order qof vibration that is generated in the engine to be damped. 18-. (canceled)9. A centrifugal pendulum-type vibration absorbing device comprising:a support member that is coupled to a rotary element that rotates by means of power from a drive device; anda mass body that is coupled to the support member so as to oscillate about a pendulum fulcrum,{'sub': eff', 'tag, 'wherein the centrifugal pendulum-type vibration absorbing device is designed so as to have an effective order qthat is greater by a correction amount that is at least associated with the non-linearity of an order of the centrifugal pendulum-type vibration absorbing device that is dependent on an oscillation angle φ of the mass body than an order qof vibration that is generated in the drive device to be damped.'}10. The centrifugal pendulum-type vibration absorbing device according to claim 9 ,wherein the order of the centrifugal pendulum-type vibration absorbing device decreases non-linearly as the oscillation angle φ of the mass body increases, and{'sub': tag', 'tag, 'the correction amount is determined so that the order of the centrifugal pendulum-type vibration absorbing device becomes the order qof the vibration that is generated in the drive device to be damped when the oscillation angle φ of the mass body is a predetermined target oscillating angle φ.'}11. The centrifugal pendulum-type vibration absorbing device ...

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Номер записи: 52
07-02-2019 дата публикации

Laminated spring containing valve, control method of this valve and prosthetic joint that includes the valve

Номер: US20190038437A1
Автор: Akay OZTURK, Can Mehmet Ali CIFTCI
Принадлежит: BAMA TEKNOLOJI TIBBI CIHAZLAR DANISMANLIK SAGLIK BILISIM SANAYI VE TICARET Ltd SIRKETI, Ortotek Ortopedi Protez Ortez Rehabilitasyon Merkezi Ticaret Ltd Sirketi

Present invention concerns a laminated spring containing valve on a cylinder that contains two compartments which are separated by a piston, which ensures the adjustment of the fluid flow rate between the two compartments by being sensitive to the pressure difference between the two compartment. Present invention explains a valve and its control method which provides a dynamical control over the fluid flow between the two compartments and the flow rate. Besides, this invention explains a valve set and a prosthetic joint, which contains this set, that ensures the adaptive movement of the prosthetic limbs of the amputees with the natural movement phases.

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Номер записи: 53
07-02-2019 дата публикации

VEHICLE SEAT

Номер: US20190039490A1
Автор: KAJINO Yusuke
Принадлежит: TOYOTA BOSHOKU KABUSHIKI KAISHA

Provided is a vehicle seat that facilitates setting of a starting load of a movable member. The vehicle seat includes a movable mechanism including: first and second springs coupled to a frame; a movable member displaceable relative to the frame; a first passive member and a second passive member coupled with the respective first and second springs; and a restriction member configured to restrict displacement of the first and second passive members. The movable member displaces the first passive member in a first direction when the movable member is displaced in the first direction, and displaces the second passive member in a second direction when the movable member is displaced in the second direction. The restriction member restricts displacement of the first passive member from a first-passive-member initial position in the second direction and displacement of the second passive member from a second-passive-member initial position in the first direction. 1. A vehicle seat provided with a seat cushion , a seatback , and a frame supporting the seat cushion and the seatback , the vehicle seat comprising:a movable mechanism configured to support at least a part of the seat cushion or at least a part of the seatback so as to be displaceable relative to the frame, a first spring and a second spring, each having a first end coupled to the frame;', 'a movable member coupled to the at least a part of the seat cushion or the at least a part of the seatback and configured to be displaceable relative to the frame;', 'a first passive member and a second passive member, a second end of the first spring being coupled to the first passive member and a second end of the second spring being coupled to the second passive member; and', 'a restriction member configured to restrict displacement of the first passive member and the second passive member,, 'the movable mechanism comprisingthe movable member being configured to displace the first passive member in a first direction when ...

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Номер записи: 54
07-02-2019 дата публикации

Hydraulic Body Mount With Compressible Bumper

Номер: US20190039655A1
Автор: Jay Thornhill, Scott W. RAWLINGS, Zoren E. Gaspar
Принадлежит: Pullman Co

A hydraulic body mount includes a first support member adapted to engage a body of a vehicle and a second support member adapted to engage the frame of the vehicle. The second support member includes a cup portion disposed radially inward of the second support surface that extends axially away from both the first support surface and the second support surface. The body mount further includes a hydraulic damping system disposed between the first support surface and the second support surface, a washer and a travel-limiting cup joined to the cup portion of the second support member. The travel-limiting cup surrounds the washer and includes a compressible limiting member that limits axial movement of the inner tube when the washer contacts the compressible limiting member.

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Номер записи: 55
07-02-2019 дата публикации

DOCK BUMPER HAVING PROGRESSIVE SPRING RATE

Номер: US20190039841A1
Автор: Berean Kyle J., Duffy Gregory J., Garrow Kristian P., Metz Donald L.
Принадлежит: DL Manufacturing, Inc.

A dock bumper for a loading dock includes a rear mounting plate for use in securing the dock bumper to a loading dock wall, a front contact surface configured to engage a vehicle backing into the loading dock, and an elastomer spring block positioned between the rear mounting plate and the front contact surface. The elastomer spring block includes an elastomeric material defining a pattern of geometric cavities. The geometric cavities are configured to provide a progressive spring rate in a longitudinal direction relative to the loading dock. 1. A dock bumper for a loading dock , comprising:a rear mounting plate for use in securing the dock bumper to a loading dock wall;a front contact surface configured to engage a vehicle rear frame while backing into the loading dock; andan elastomer spring block positioned between the rear mounting plate and the front contact surface, the elastomer spring block comprising an elastomeric material defining a pattern of geometric cavities configured to provide a progressive spring rate in a longitudinal direction relative to the loading dock.2. The dock bumper of claim 1 , wherein the pattern of geometric cavities extend in a lateral direction relative to the loading dock.3. The dock bumper of claim 2 , wherein geometric cavities extend through the entire lateral dimension of the elastomeric material.4. The dock bumper of claim 1 , wherein the spring rate progressively increases as the elastomer spring block compresses.5. The dock bumper of claim 4 , wherein the pattern of geometric cavities comprise a successively decreasing cross-sectional area in the longitudinal direction of the progressively increasing spring rate.6. The dock bumper of claim 4 , wherein the pattern of geometric cavities are equal in cross-sectional area.7. The dock bumper of claim 1 , wherein the front contact surface comprises a hardened plate to protect the elastomer spring block from damage.8. The dock bumper of claim 7 , wherein the front contact surface ...

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Номер записи: 56
24-02-2022 дата публикации

INTERNAL BYPASS SHOCK ABSORBER

Номер: US20220056976A1
Автор: Anderson Jake R.
Принадлежит: Raptor Performance Shocks

A shock absorber is provided that includes a shock body and a shaft assembly. The shock body has an inner chamber. The inner chamber is defined by a cylindrical interior surface. At least one groove is formed in the interior surface within at least one select length of the shock body. A piston of the shaft assembly is received within the inner chamber of the shock body. The piston includes valving to allow dampening matter that is received within the inner chamber to pass through the piston to allow the piston to move within the inner chamber. The at least one groove that is formed within the interior surface is configured to allow at least some of the dampening matter to bypass the valving of the piston to allow the piston to move through the at least one select length with less resistance. 1. A shock absorber comprising:a shock body of a mono tube shock absorber having an inner chamber, the inner chamber defined by a cylindrical interior surface of the shock body, at least one groove formed in the interior surface of the shock body within at least one select length of the shock body; anda piston of a shaft assembly of the mono tube shock absorber received within the inner chamber of the shock body, the at least one groove configured to allow dampening material to pass along a side of the piston within the at least one groove as the piston moves along the at least one select length of the shock body.2. The shock absorber of claim 1 , further comprising:the piston including valving to allow dampening matter that is received within the inner chamber to pass through the piston to allow the piston to move within the inner chamber of the shock body, the at least one groove formed within the interior surface being configured to allow at least some of the dampening matter to bypass the valving of the piston to allow the piston to move along the at least one select length of the shock body including the at least one groove with less resistance than is encountered with the ...

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Номер записи: 57
24-02-2022 дата публикации

VIBRATION DAMPERS AND DAMPER TUBES FOR VIBRATION DAMPERS

Номер: US20220056978A1
Автор: Froese Moritz, Hartig Ulrich, Malburg Mike, Müller Andreas, Schneider Jürgen, Woenarta Freddy
Принадлежит:

A vibration damper for a vehicle may include an outer tube, a middle tube, and an inner tube arranged coaxially. A seal receiving element may be arranged between the inner tube and the middle tube on each side of a middle tube opening facing towards tube ends of the middle tube. A radially encircling sealing element may be arranged in the seal receiving element, and the sealing element may seal the middle tube compensation space relative to the outer tube compensation space at least with respect to damping medium. The seal receiving element may be configured at least partially as a coating element. The coating element may be disposed on the inner tube or the middle tube in a substance-to-substance bonded manner. 1. A vibration damper for a vehicle , comprising:an outer tube, a middle tube, and an inner tube arranged coaxially;a piston rod arranged in the inner tube so as to be movable back and forth;a working piston arranged on the piston rod and movable jointly with the piston rod;an outer tube compensation space for receiving damping medium formed between the outer tube and the middle tube; anda middle tube compensation space for receiving damping medium formed between the middle tube and the inner tube,wherein the middle tube has a middle tube opening for fluidic through-connection of the outer tube compensation space to the middle tube compensation space,wherein the inner tube has an inner tube opening for fluidic through-connection of the middle tube compensation space to an interior space of the inner tube, wherein the inner tube is filled at least partially with damping medium, wherein the interior space of the inner tube is divided into a piston-rod-side working space and a piston-rod-remote working space by the working piston,wherein a seal receiving element is disposed between the inner tube and the middle tube on each side of the middle tube opening facing towards tube ends of the middle tube,wherein a radially encircling sealing element is disposed in ...

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Номер записи: 58
07-02-2019 дата публикации

Vibration damper arrangement

Номер: US20190040927A1
Автор: Joachim Funke
Принадлежит: Hitachi Automotive Systems Europe GmbH

The invention relates to a vibration damper arrangement, in particular for damping compression and rebound forces on motor vehicles, which comprises a pressure medium cylinder (1), in which a piston (2) with a piston rod (3) is guided axially displaceably, which piston (2) divides the pressure medium cylinder (1) into a compression chamber (4) and a rebound chamber (5), a gas pressure accumulator (8) also being provided for volume compensation of the piston rod (3), which gas pressure accumulator (8) is connected to the compression chamber (4) by way of at least one first check valve (6) which can open toward the compression chamber (4), and a second check valve (7) which can open toward the rebound chamber (5) and, parallel thereto, at least one first controllable operating valve (12) being provided between the compression chamber (4) and the rebound chamber (5).

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Номер записи: 59
07-02-2019 дата публикации

ELASTOMER BEARING

Номер: US20190040928A1
Автор: BURWINKEL Josef, Loheide Stefan, Lordick Achim, MENDEL Marc, Schmitz Thomas, WITTBRACHT Frank
Принадлежит:

An elastomer bearing has an inner part, an outer sleeve that surrounds the inner part, and an elastomer body that is arranged between the inner part and the outer sleeve. The elastomer body extends from the inner part as far as the outer sleeve. The elastomer body comprises two liquid chambers, which are filled with a liquid and arranged one on top of the other in an axial direction, and a duct carrier arranged radially between the elastomer body and the outer sleeve. The duct carrier surrounds the elastomer body in a region of the liquid chambers and bounds the chambers. The elastomer body is vulcanized to the inner part. To reinforce the elastomer body, two, annular reinforcement inlays are embedded in the elastomer body, and form parts, separate from one another, of a cage that is embedded in the elastomer body. 1. An elastomer bearing comprising:an inner part and an outer part that surrounds the inner part; andan elastomer body, arranged between the inner part and the outer part, connected both to the inner part and the outer part, that includes at least two liquid chambers filled with a liquid, and connected by at least two ducts, wherein a bidirectionally-acting valve is provided in a first of the ducts.2. The elastomer bearing as claimed in claim 1 , wherein the bidirectionally-acting valve is a bidirectionally-acting ball valve.3. The elastomer bearing as claimed in claim 1 , further comprising a shut-off body movably arranged between two valve seats of the bidirectionally-acting valve claim 1 , arranged at a predefined distance from one another.4. The elastomer bearing as claimed in claim 3 , wherein the shut-off body is moved into a defined position by gravity or by a restoring mechanism.5. The elastomer bearing as claimed in claim 4 , wherein the defined position is located between the valve seats.6. The elastomer bearing as claimed in claim 4 , wherein the valve seats are provided at ends of a first duct claim 4 , at ends of the at least two ducts claim ...

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Номер записи: 60
07-02-2019 дата публикации

PASSIVE VARIABLE NEGATIVE STIFFNESS DEVICE AND METHODS OF USE THEREOF

Номер: US20190040931A1
Автор: Walsh Kenneth K.
Принадлежит:

A passive variable negative stiffness device (passive VNSD) configured to facilitate a transition to zero stiffness by using elastic devices (e.g., springs) combined with translating and rotating components. An exemplary embodiment of a passive VNSD may comprise at least one pretensioned and/or precompressed elastic device to produce the desired force-displacement profiles. For instance, an exemplary embodiment of a passive VNSD may be adapted to produce force-displacement profiles that transition from zero stiffness, to negative stiffness, and then to positive stiffness (ZNP) and from zero stiffness, to negative stiffness, and then back to zero stiffness (ZNZ). 1. A system comprising:a translation component;a first pair of discs in association with said translation component, said first pair of discs comprised of a first disc that is associated with a second disc, said first pair of discs further comprising a first elastic device that extends between said first disc and said second disc; anda second pair of discs in association with said translation component, said second pair of discs comprised of a third disc that is associated with a fourth disc, said second pair of discs further comprising a second elastic device that extends between said third disc and said fourth disc;wherein said first pair of discs is adapted to create forces in response to translation of said translation component such that said forces are transferred to said translation component to induce a negative stiffness; andwherein said second pair of discs is adapted to create forces in response to translation of said translation component such that said forces are transferred to said translation component to induce a combination of negative stiffness and positive stiffness.2. The system of wherein said system is adapted to produce force-displacement profiles that transition from zero stiffness claim 1 , to negative stiffness claim 1 , and then to positive stiffness (ZNP) and from zero stiffness ...

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Номер записи: 61
18-02-2021 дата публикации

DAMPING CARDANIC SUSPENSION FOR PENDULUM DAMPERS

Номер: US20210047998A1
Автор: MITSCH Franz
Принадлежит:

A new type of independently damping pendulum suspension for pendulum dampers for use in tall slender constructions and technical installations, more particularly used in wind turbines. A Cardan joint is equipped with damping elements and mounted at the other end opposite the pendulum mass. The Cardan joint is able, despite the small motions, to sufficiently damp the oscillations of the pendulum produced by disturbing frequencies. 115-. (canceled)161. A damping pendulum suspension () , for a pendulum damper in a vibration system , comprising:{'b': 1', '1', '3, 'a Cardan joint () having two cross-connected shafts (.), and'}{'b': 1', '7, 'a holding device (.) for receiving and holding a pendulum rod with a pendulum mass,'}{'b': 1', '3', '1', '1', '1', '2, 'wherein each of the two shafts (.) of the Cardan joint (.) has (i) at least one transmission gearing (.),'}{'b': 1', '4', '1', '4', '1', '2, '(ii) at least one rotating damping unit (.) which generates eddy current, and the damping element (.) being attached, in each case, to a rapidly rotating gearing output side (.),'}{'b': 19', '1', '3, '(iii) an elastomeric torsional bearing, in a shape of a bushing (), is connected to each of the shafts (.) via a slowly rotating gearing input side, and'}{'b': '23', '(iv) a torque arm () is provided, which transmits only circulating torque, and is mounted largely load-free in a remaining spatial axes, so that an entire angle of movement of the damper is shifted into the gearing rotation.'}17191. The pendulum suspension according to claim 16 , wherein the elastomeric bushing is provided in a conical form (.).182324. The pendulum suspension according to claim 16 , wherein the torque arm () is provided with an idle angle () in order to achieve a pulse effect.191414314414114414213. The pendulum suspension according to wherein the eddy-current damping element (.) comprises a conductor disk (.. claim 16 ,..) and a disk (.. claim 16 , ..) provided with permanent magnets or ...

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Номер записи: 62
16-02-2017 дата публикации

Single-degree-of-freedom magnetic vibration isolation device

Номер: US20170045107A1
Автор: Xuedong Chen, Zilong LI
Принадлежит: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

A single-degree-of-freedom magnetic vibration isolation device belongs to vibration isolation devices and solves the following problems: the existing active and passive combined vibration reduction system is complex in structure, needs energy supply, and has low reliability. The present invention includes a metal conductor sleeve, a base, an upper annular permanent magnet, a lower annular permanent magnet, a connecting rod and a center permanent magnet; poles of the upper annular permanent magnet and the lower annular permanent magnet facing to each other have reverse polarity, which are connected to an upper end and a lower end of an inner wall of the metal conductor sleeve respectively; the center permanent magnet is concentrically sleeved on the connecting rod and fixedly connected therewith, and the center permanent magnet is located between the upper annular permanent magnet and the lower annular permanent magnet, and is capable of moving axially together with the connecting rod between the upper annular permanent magnet and the lower annular permanent magnet; and the pole of the center permanent magnet facing to the poles of the upper annular permanent magnet and the lower annular permanent magnet have reverse polarity. The present invention is simple in structure, does not need energy supply, has high reliability, and can generate a static magnetic force and a dynamic magnetic force. Connecting the device according to the present invention with a passive vibration isolation system in parallel can effectively improve the passive vibration isolation performance of the original system.

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Номер записи: 63
03-03-2022 дата публикации

VIBRATION DAMPING DEVICE FOR VEHICL

Номер: US20220063392A1
Автор: CHO Hee Ho, KANG Jun Bok
Принадлежит: DAEHEUNG RUBBER & TECHNOLOGY CO., LTD.

Proposed is a rubber bush type vibration damping device for a vehicle, which solves the problem of vibration increase which may occur in the natural frequency of the vibration damping device by changing the shapes of an inner coupling part or an outer coupling part and by using difference in the lengths of rubber insulators due to the changing of the shapes thereof. The vibration damping device includes an inner coupling part, an outer coupling part, and a plurality of rubber insulators having have different natural frequency. 1. A vibration damping device for a vehicle for reducing a resonance energy caused by vibration of an engine or a motor of the vehicle , the vibration damping device comprising:an inner coupling part;an outer coupling part having a shape of surrounding the inner coupling part; anda plurality of rubber insulators having inner sides bonded to the inner coupling part and having outer sides bonded to the outer coupling part, so that each of the rubber insulators, with a portion of the inner coupling part to which the rubber insulator is bonded and a portion of the outer coupling part to which the rubber insulator is bonded, constitutes an unit vibration damping module,wherein a shortest length of the unit vibration damping module is defined as a shortest length from a portion of the rubber insulator bonded to the inner coupling part to a portion of the rubber insulator bonded to the outer coupling part;one or more unit vibration damping modules have different shapes and different shortest lengths of the unit vibration damping module;the plurality of the rubber insulators is made of the same materials;a primary natural frequency of each of the plurality of rubber insulators is within 400 Hz to 3000 Hz; andthe shortest length of the one unit vibration damping module is 70% to 98% of the shortest length of the another unit vibration damping module.2. The vibration damping device of claim 1 , wherein the difference between a primary natural frequency ...

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Номер записи: 64
03-03-2022 дата публикации

SHOCK ABSORBER

Номер: US20220065321A1
Автор: ENDO Joji, YAMAOKA Fumiyuki
Принадлежит:

A shock absorber includes: a cylinder; a piston slidably inserted into the cylinder; a piston rod connected to the piston and extending outside the cylinder; a main valve that generates a damping force; a pilot chamber that applies pressure to the main valve; an introduction passage that introduces the fluid into the pilot chamber; a pilot passage that communicates the pilot chamber and a downstream side of the main valve with each other; and a control valve provided in the pilot passage. In an upstream side of the pilot passage from the control valve, the pilot passage is provided with a first orifice, a first passage provided in parallel with the first orifice, a first check valve that is opened at a predetermined differential pressure and allows a flow toward the control valve through the first passage, and a second orifice. 1. A shock absorber comprising:a cylinder filled with a fluid;a piston slidably inserted into the cylinder;a piston rod connected to the piston and extending outside the cylinder;a main valve configured to control a flow of the fluid generated by sliding of the piston in the cylinder, thereby generating a damping force;a pilot chamber configured to apply pressure to the main valve in a valve closing direction;an introduction passage configured to introduce the fluid into the pilot chamber;a pilot passage configured to communicate the pilot chamber and a downstream side of the main valve with each other; anda control valve provided in the pilot passage,wherein, in an upstream side of the pilot passage from the control valve, the pilot passage is provided with a first orifice that always communicates, a first passage provided in parallel with the first orifice, a first check valve that is opened at a predetermined differential pressure and allows a flow toward the control valve through the first passage, and a second orifice.2. The shock absorber according to claim 1 , wherein the second orifice has a flow path area larger than a flow path area ...

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Номер записи: 65
03-03-2022 дата публикации

Damper assembly including valve connectors having one-way valves

Номер: US20220065323A1
Автор: Alexander Alvarez Zendoia
Принадлежит: Driv Automotive Inc

A damper assembly includes an outer tube and an inner tube disposed in the outer tube defining a reserve chamber. The inner tube defines an inner volume. A piston is slidably disposed in the inner tube and divides the inner volume into a rebound working chamber and a compression working chamber. A rebound valve is fluidly connected to the rebound working chamber and the reserve chamber, and a compression valve is fluidly connected to the reserve chamber and the compression working chamber. A rebound valve connector fluidly connects the rebound valve and the rebound working chamber and a compression valve connector fluidly connects the compression valve and the compression working chamber. The rebound valve connector includes a one-way valve from the reserve chamber to the rebound working chamber and the compression valve connector includes a one-way valve from the reserve chamber to the compression working chamber.

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Номер записи: 66
14-02-2019 дата публикации

HANDLING STRUT

Номер: US20190047396A1
Автор: Furnival Paul, GALLAGHER Thomas, Kennings Paul, Layfield Jonathan, Peel Martin Robert
Принадлежит:

A handling strut connects the powertrain of an automobile to a structural member, such as a panel in the engine bay. The handling strut is comprised of two strut members, one connected to the powertrain, the other connected to the structural member. A shaft attached to one strut member, extends through a bushing provided in the other strut member and an air gap is provided between the bushing and the shaft, such that when the engine is idle, or not accelerating, and in the absence of hard cornering, the strut members are decoupled. The isolation of the strut members when not required to control engine roll, reduces/avoids transmission of noise, vibration and/or harshness. 1. A handling strut for a vehicle , the handling strut formed of at least two strut members; a first strut member for connection to a powertrain and a second strut member for connection to a structural member of the vehicle; wherein one of said strut members comprises a bushing and the other strut member comprises a shaft arranged to extend through an aperture in the bushing; characterised by the aperture through the bushing being wider than the shaft , and a predetermined air gap being provided between the shaft and the bushing.2. A handling strut according to wherein the shape of the aperture in the bushing is elongate3. A handling strut according to wherein the aperture is substantially rectangular or ovular.4. A handling strut according to wherein the bushing is arranged such that the elongate axis is substantially vertical.5. A handling strut according to wherein the air gap laterally of the shaft is between 3 and 15 mm and/or wherein the air gap in the vertical direction is between 10 and 50 mm in total above and below the shaft.6. (canceled)7. A handling strut according to wherein claim 1 , the lateral air gap is smaller than the vertical air gap.8. A handling strut according to wherein the bushing is resilient claim 1 , formed of an elastomeric material.9. (canceled)10. A handling strut ...

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Номер записи: 67
14-02-2019 дата публикации

VIBRATION DAMPING DEVICE AND DAMPING METHOD FOR A ROTOR OF AN AIRCRAFT CAPABLE OF HOVERING

Номер: US20190047690A1
Автор: Bottasso Luigi Maria
Принадлежит:

A damping device is described that is designed to counter the transmission of vibrations to a further element and comprises: a beam element, which extends mainly parallel to an axis, is constrained to the further element and is designed to flexurally oscillate, in use, in a plane parallel to the axis to counter the transmission of vibrations to the further element; an actuator, which comprises a transmission element operatively connected to the beam element and extending mainly along the axis; the actuator being controllable to apply a direct tensile or compressive load along the axis on the transmission element that is variable according to the frequency of the vibrations to be dampened. 24545453217. A damping device according to claim 1 , characterized in that it comprises a constraining unit ( claim 1 , ′ claim 1 , ″) claim 1 , which constrains said transmission element () and said mass () at least in a first direction parallel to said axis (A).3454522322232. A damping device according to claim 2 , characterized in that said constraining unit ( claim 2 , ′) is configured to leave said beam element () and transmission element () free to rotate with respect to each other claim 2 , or to allow said beam element () to flex with respect to said transmission element () in a plane parallel to said axis (A).4454532223222. A damping device according to claim 2 , characterized in that said constraining unit ( claim 2 , ′) constrains said transmission element () and said beam element () to one another only in said first direction claim 2 , parallel to said axis (A) claim 2 , and is configured so as to leave said transmission element () and said beam element () free to move with respect to each other in a second direction claim 2 , opposite to said first direction and parallel to said axis (A).72022. A damping device according to claim 1 , characterized in that it comprises a support device () claim 1 , which supports said beam element () and is axially fixed to the ...

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Номер записи: 68
13-02-2020 дата публикации

VARIABLE RATE FLAT SPRING ARRANGEMENT

Номер: US20200047577A1
Автор: Berlingieri Anthony, Brothers Brian R., Delgado Jose G., Diego Guedea Ramon Heberto, Frausto Rodriguez Jose Roberto, Friedrichs Robert W., Galea Chris, Hopkins Jeffrey S., Kota Ananth K., Meza Jesus Ernesto, Ruiz Juarez Jose G., Willemsen Ronald J., Zeimet James N.
Принадлежит:

A suspension system for a vehicle is provided. The suspension system includes a first chassis rail extending longitudinally in an axial direction of the vehicle. The suspension system also includes a second chassis rail extending longitudinally in the axial direction of the vehicle. The suspension system further includes a transverse beam coupled to the first chassis rail and the second chassis rail. The suspension system yet further includes at least one leaf spring extending in a transverse direction of the vehicle, the at least one leaf spring having a spring rate that is actively variable. The suspension system also includes a fulcrum locator operatively coupled to the at least one leaf spring and to the transverse beam, the fulcrum locator in a sliding relationship with the at least leaf one spring. 1. A suspension system for a vehicle , the suspension system comprising:a first chassis rail extending longitudinally in an axial direction of the vehicle;a second chassis rail extending longitudinally in the axial direction of the vehicle;a transverse beam coupled to the first chassis rail and the second chassis rail;at least one leaf spring extending in a transverse direction of the vehicle, the at least one leaf spring having a spring rate that is actively variable; anda fulcrum locator operatively coupled to the at least one leaf spring and to the transverse beam, the fulcrum locator in a sliding relationship with the at least leaf one spring.2. The suspension system of claim 1 , wherein the fulcrum locator comprises a clamping element.3. The suspension system of claim 1 , further comprising:a first leaf spring element extending longitudinally in the axial direction of the vehicle, the first leaf spring element operatively coupled proximate ends thereof to the first chassis rail and at an intermediate location to an axle assembly of the vehicle; anda second leaf spring element extending longitudinally in the axial direction of the vehicle, the second leaf spring ...

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Номер записи: 69
14-02-2019 дата публикации

ACCUMULATOR DEVICE AND HYDROPNEUMATIC SUSPENSION

Номер: US20190048897A1
Автор: Weber Norbert
Принадлежит:

The invention relates to an accumulator device (), consisting of at least two accumulator elements () which are combined to form a structural unit () and have independently from one another their own accumulator characteristic curves (), in particular as a result of different preload pressures, wherein the respective accumulator characteristic curves () provide a combined total accumulator characteristic curve (), according to which a fluid can be stored in the structural unit () and can be retrieved therefrom. The invention further relates to a hydropneumatic suspension system () having such an accumulator device (). 1141612182018202212. An accumulator device , consisting of at least two accumulator elements ( , ) combined into a unit () , having separate characteristic accumulator curves independent from each other ( , ) , in particular on the basis of pre-charge pressures , wherein the respective characteristic accumulator curves ( , ) combined result in an overall characteristic accumulator curve () , according to which a fluid can be stored in the unit () and retrieved therefrom.21214485030523052525414163212. The accumulator device according to claim 1 , characterized in that each of the accumulator elements ( claim 1 , ) forms an accumulator claim 1 , whose separator element ( claim 1 , ) in each case separates two media chambers ( claim 1 , ; claim 1 , ; claim 1 , ) from each other claim 1 , and that the accumulator elements ( claim 1 , ) are accommodated in a common accumulator housing () forming the unit ().3485056581416. The accumulator device according to claim 2 , characterized in that the respective separator element ( claim 2 , ) is a dividing piston ( claim 2 , ) of an accumulator element ( claim 2 , ) configured as a piston accumulator.4586032565758. The accumulator device according to claim 3 , characterized in that one of the dividing pistons () is guided in a longitudinally movable manner on the inside () of the accumulator housing () and the next ...

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Номер записи: 70
14-02-2019 дата публикации

SOFT OPENING 2-WAY VALVE ARRANGEMENT FOR A SHOCK ABSORBER

Номер: US20190048965A1
Автор: LARSSON FREDRIK, Malmborg Håkan
Принадлежит:

Valve arrangement for a shock absorber is described, comprising a valve housing () having a first () and a second port (), a pilot chamber () being in fluid communication with the first () and/or second port (), wherein a pilot pressure (Pp) is defined by a hydraulic pressure in the pilot chamber (). The arrangement further comprises a main valve member () being axially movably arranged in the valve housing () and being arranged to interact with a main valve seat member () in order to restrict a main fluid flow between the first () and second ports () in response to the pilot pressure (Pp) acting on the main valve member (). Moreover, the main valve seat member () is movable between a first compression stroke position and a second rebound stroke position so that, during the compression stroke, the main fluid flow is restricted at a first restriction (R) and a cooperating serially arranged second restriction (R), and during the rebound stroke, the main fluid flow is restricted at a third restriction (R). 212. The valve arrangement according to claim 1 , wherein the first restriction (R) is arranged upstream relative the second restriction (R) claim 1 , in view of the compression fluid flow direction.312. The valve arrangement according to claim 1 , wherein the first restriction (R) has a smaller orifice (O) claim 1 , than the second restriction's (R) orifice (O) when being at least partly opened.4129. The valve arrangement according to claim 1 , wherein at least one of the first restriction (R) and the second restriction (R) is closed when said main valve seat member () is in said rebound stroke position.539. The valve arrangement according to claim 1 , wherein the third restriction (R) is closed when said main valve seat member () is in said compression stroke position.612343. The valve arrangement according to claim 1 , wherein the orifices (O claim 1 , O) of said first restriction (R) claim 1 , second restriction (R) and/or third restriction (R) is controlled by ...

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Номер записи: 71
14-02-2019 дата публикации

2-WAY SOFT OPENING VALVE ARRANGEMENT FOR A SHOCK ABSORBER

Номер: US20190048967A1
Автор: Hovén Arnold
Принадлежит:

Valve arrangement for a shock absorber is described, comprising a valve housing () having a first () and a second port (), a pilot chamber () being in fluid communication with the first () and/or second port (), wherein a pilot pressure (Pp) is defined by a hydraulic pressure in the pilot chamber (). The arrangement further comprises a main valve member () being axially movably arranged in the valve housing () and being arranged to interact with a main valve seat member () in order to restrict a main fluid flow between the first () and second ports () in response to the pilot pressure (Pp) acting on the main valve member (). Moreover, the main valve seat member () is movable between a first compression stroke position and a second rebound stroke position so that, during the compression stroke, the main fluid flow is restricted at a first restriction (R) and a cooperating serially arranged second restriction (R), and during the rebound stroke, the main fluid flow is restricted at a third restriction (R) and a cooperating serially arranged fourth restriction (R). 21212. The valve arrangement according to claim 1 , wherein the first restriction (R) is arranged upstream relative the second restriction (R) claim 1 , in view of the compression fluid flow direction and the first restriction (R) has a smaller orifice (O) than the second restriction's (R) orifice (O) in at least an initial stroke and when being at least partly opened.33434. The valve arrangement according to claim 1 , wherein the third restriction (R) is arranged upstream relative the fourth restriction (R) claim 1 , in view of the rebound fluid flow direction claim 1 , and wherein the third restriction (R) has a smaller orifice (O) than the fourth restriction's (R) orifice (O) in at least an initial stroke and when being at least partly opened.412. The valve arrangement according to claim 1 , comprising a fifth restriction (R′) being arranged in series with the second restriction (R).5143. The valve ...

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Номер записи: 72
25-02-2021 дата публикации

Variable stiffness magnetic spring

Номер: US20210054897A1
Автор: Jonathan Bird
Принадлежит: Portland State University

This disclosure presents a new type of variable stiffness magnetic spring, which can have a highly linear translational force characteristic. The variable stiffness is achieved through the rotation of a central magnet. Both positive and negative spring constants can be created. Using an analytic-based field analysis modelling technique, the operating principle and linearity characteristics of the adjustable magnetic spring are studied. The use of a magnetic spring with an adjustable negative spring constant could enable an ocean generator to continuously operate in a resonant state, thereby greatly increasing its power generation capability. The described variable stiffness spring could also be useful in other energy harvesting applications, robotic actuator applications, and/or other applications.

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Номер записи: 73
25-02-2021 дата публикации

WIDEBAND VIBRATION SUPPRESSION DEVICE UTILIZING PROPERTIES OF SONIC BLACK HOLE

Номер: US20210054898A1
Автор: Cheng Li, Zhou Tong
Принадлежит: The Hong Kong Polytechnic University

A wideband vibration suppression device utilizing properties of a sonic black hole, comprising: a vibration absorber () comprising a uniform portion () of a fixed thickness and a conical portion () integrally connected to the uniform portion (), the conical portion () extending from the junction in such a manner that the thickness thereof gradually decreases from the thickness (d) of the uniform portion () to a predetermined thickness (d); and a damping layer () attached to the conical portion () of the vibration absorber (). 1. A broadband vibration suppression apparatus using an acoustic black hole feature , comprising:a vibration-reduced body comprising a uniform portion of a fixed thickness and a tapered portion integrally connected with the uniform portion, the tapered portion being extended from a junction in a manner that a thickness of the tapered portion gradually decreases from the fixed thickness of the uniform portion to a predetermined thickness, wherein the uniform portion and the tapered portion being integrally connected at the junction; anda damping layer attached to the tapered portion of the vibration-reduced body.2. The apparatus according to claim 1 , wherein the thickness decreasing of the tapered portion follows the following formula:{'br': None, 'i': h', 'x', 'x', ', m≥, 'sup': 'm', '()−ε·2'}wherein x is a coordinate along a direction in which the thickness of the tapered portion gradually decreases, ε is a coefficient, and m is an integer greater than or equal to 2.3. The apparatus according to claim 1 , further comprising a connector attached to a bottom of the uniform portion of the vibration-reduced body claim 1 , so as to connect the vibration-reduced body to a device to be vibration-reduced.4. The apparatus according to claim 3 , wherein the connector is configured to connect the vibration-reduced body to the device to be vibration-reduced by strong glue claim 3 , welding or bolts.5. The apparatus according to claim 1 , wherein the ...

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Номер записи: 74
25-02-2021 дата публикации

Vibration Damper for a Vehicle

Номер: US20210054901A1
Автор: Dietmar Gross, Johannes Maier
Принадлежит: Bayerische Motoren Werke AG

A vibration damper for a vehicle, includes at least one cylinder tube forming a fluid chamber, in which a piston assembly is axially and slidingly arranged and divides the cylinder tube into two working chambers, an upper and a lower working chamber, and wherein the piston assembly has an axially moveable main piston which is axially fixed to a piston rod that can move axially relative to the cylinder tube, and which has a piston valve influencing the fluid flow between the upper and lower working chambers, and wherein a further stroke-dependent piston is arranged on an axial extension of the piston rod in the direction of the cylinder base, which operates once a determined damper stroke is achieved. The stroke-dependent piston has a smaller diameter than the main piston and only operates when plunging into a smaller diameter of an inner casing surface. The stroke-dependent piston therefore has a stroke-dependent valve, and the stroke-dependent piston also has a frequency-dependent valve in addition to the stroke-dependent valve.

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Номер записи: 75
13-02-2020 дата публикации

INTERNAL BYPASS SHOCK ABSORBER

Номер: US20200049221A1
Автор: Anderson Jake R.
Принадлежит: Raptor Performance Shocks, LLC

A shock absorber is provided that includes a shock body and a shaft assembly. The shock body has an inner chamber. The inner chamber is defined by a cylindrical interior surface. At least one groove is formed in the interior surface within at least one select length of the shock body. A piston of the shaft assembly is received within the inner chamber of the shock body. The piston includes valving to allow dampening matter that is received within the inner chamber to pass through the piston to allow the piston to move within the inner chamber. The at least one groove that is formed within the interior surface is configured to allow at least some of the dampening matter to bypass the valving of the piston to allow the piston to move through the at least one select length with less resistance. 1. A shock absorber comprising:a shock body having an inner chamber, the inner chamber defined by a cylindrical interior surface of the shock body, at least one groove formed in the interior surface of the shock body within at least one select length of the shock body; anda piston of a shaft assembly received within the inner chamber of the shock body, the piston including valving to allow dampening matter that is received within the inner chamber to pass through the piston to allow the piston to move within the inner chamber of the shock body, the at least one groove formed within the interior surface being configured to allow at least some of the dampening matter to bypass the valving of the piston to allow the piston to move along the at least one select length of the main shock body including the at least one groove with less resistance than is encountered with the dampening matter only flowing through the valving.2. The shock absorber of claim 1 , wherein the at least one groove forms a helix shape within the interior surface of the inner chamber of the shock body.3. The shock absorber of claim 1 , wherein the at least one groove includes a plurality of spaced grooves that ...

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Номер записи: 76
13-02-2020 дата публикации

VIBRATION ISOLATOR AND SYSTEMS INCLUDING SAME

Номер: US20200049228A1
Автор: Leonard Joshua R., Moulik Pradipta N.
Принадлежит:

Vibration isolators can be dimensioned for securement between a rotational motion source and a rotational motion target. The vibration isolators can include a first end member and a second end member supported in substantially-fixed axial position but axially-rotatable relative to the first end member. An intermediate member can be disposed between and operatively engaging the first and second end members. A rotational motion-to-axial motion conversion system is operatively disposed between the intermediate member and the first end member such that rotation of the intermediate member and the second end member generates axial displacement of the intermediate member relative to the first and second end members. A biasing element can be operatively disposed between the intermediate member and one or more of the first and second end members to bias the intermediate member in an axial direction. Rotary power transmissions or system are also included. 1. A vibration isolator dimensioned for securement between an associated rotational motion source and an associated rotational motion target , said vibration isolator comprising:a first end member having a longitudinal axis and a second end member operatively connected to said first end member, said first and second end members support in a substantially-fixed axial position and axially-rotatable relative to one another;an intermediate member disposed between and operatively engaging said first and second end members, said intermediate member supported on one of said first end member and said second end member, said intermediate member axially displaceable relative to said first and second end members, said intermediate member operatively connected in a substantially-fixed rotational orientation relative to one of said first end member and said second end member such that said intermediate member and said one of said first and second end members can co-rotate relative to the other of said first and second end members;a cam ...

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Номер записи: 77
23-02-2017 дата публикации

Smart Springs and their Combinations

Номер: US20170051808A1
Автор: Bogrash Philip, Bogrash Roger
Принадлежит:

Springs of different types are provided with the ability to dynamically change stiffness. For one embodiment turning the elastic beams with elongated cross-section inside a leaf spring's housing plate, leaf springs stiffness is varied. Friction forces between plates are also controlled by using a thin layer of electro-rheological fluid between plates whose viscosity is greatly varied by application of voltage. Second embodiment springs made of hollow tubing filled with oil wherein inside pressure is changed by an actuated membrane or piston whose movement drastically increases the hydrostatic pressure inside the tubing and thus increases tensile stress in the tubing's wall and expands the diameter of tubing which may be of cross-section purposely suited for expansion, thereby increasing its stiffness or decreasing it with any desired frequency or changing the stiffness possibly in milliseconds for a period of time. These springs that are also provided with limited actuation capability are especially suitable for counteracting vibration when changing stiffness with same frequency as vibration. When a number of such springs are used to support one load, they can be used for dynamically varying the load distribution or preventing a change to said load distribution in real time. Another embodiment features annular corrugated tubing which with the increase in inside pressure will substantially lengthen, producing large coil radius expansion and accordingly large decrease in spring stiffness, still another embodiment uses corrugated tubing inside a retaining cylinder; said tubing expands lengthwise when inside pressure is increasing but retaining cylinder forces the lengthening tubing to produce new coils inside of it resulting in spring length increase that is actuation and large stiffness variability resulting from coil number variability. 1. A spring made of hollow tubing filled with a liquid and provided with the means of varying the hydrostatic pressure in said ...

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Номер записи: 78
03-03-2016 дата публикации

SHOCK ABSORBER

Номер: US20160059663A1
Автор: MASAMURA Tatsuya, Teraoka Takashi
Принадлежит: KAYABA INDUSTRY CO., LTD.

A shock absorber includes a suction passage allowing flow only from a reservoir towards a pressure side chamber, a rectifying passage allowing flow only from the pressure side chamber towards an expansion side chamber, and a damping force variable valve allowing flow only from the expansion side chamber towards the reservoir. Large, and small and outer peripheral chambers in a bottom housing sandwich a free piston. The small chamber communicates the outer peripheral chamber with the expansion side chamber. The large chamber communicates with the pressure side chamber through first and second valves. During a contraction in which a piston moves downward, even in a uniflow-type shock absorber in which pressure in the expansion side chamber and the pressure side chamber become equal, the free piston can move downward due to a difference in pressure-receiving areas. Even if a stretching speed reaches a high range, the first and second valves are opened, and damping force is reduced. 1. A shock absorber , comprising:a cylinder;a piston slidably inserted into the cylinder, the piston defining an expansion side chamber and an pressure side chamber inside the cylinder;a reservoir;a suction passage that allows only a flow of liquid from the reservoir toward the pressure side chamber;a rectifying passage that allows only a flow of liquid from the pressure side chamber toward the expansion side chamber;a damping force adjusting unit that allows only a flow of liquid from the expansion side chamber toward the reservoir, the damping force adjusting unit being configured to change resistance provided to the flow of liquid;a housing that includes a pressure chamber including a small-cross-sectional-area portion and a large-cross-sectional-area portion;a free piston that includes: a small-piston portion slidably inserted into the small-cross-sectional-area portion of the pressure chamber; and a large-piston portion slidably inserted into the large-cross-sectional-area portion of ...

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Номер записи: 79
10-03-2022 дата публикации

ADDITIVELY MANUFACTURED ELLIPTICAL BIFURCATING TORSION SPRING

Номер: US20220074458A1
Автор: Campbell Benjamin K., Chadbourne Robert, DIPPEL Ryan, Shaw Michael J.
Принадлежит:

A 3D printed additively manufactured (AM) elliptical bifurcating torsion flexure assembly system includes a base section; elliptical bifurcating torsion springs, each including a bifurcated legs section supported by the base; a bifurcated elliptical torsion spring section contiguous with the bifurcated legs section; and a single upper section contiguous with the elliptical torsion spring section. The single upper section includes a connection component, and the device material includes Hot Isostatic Pressing (HIP) heat-treated Ti6Al4V. The elliptical bifurcating torsion flexure assembly is printed as one part by a 3D additive manufacturing process, and the bifurcation maintains consistent balance while being torqued. The stiffness-spring rate of the device is at least partly controlled by varying cross-sectional shape and diameters by the 3D additive manufacturing printing. 1. A flexure device , comprising:{'claim-text': ['a bifurcated legs section supported by said base;', 'a bifurcated elliptical torsion spring section contiguous with said bifurcated legs section;', 'a single upper section contiguous with said elliptical torsion spring section, said single upper section comprising a connection component; and'], '#text': 'at least one elliptical bifurcating torsion spring comprising:'}wherein said at least one elliptical bifurcating torsion spring is printed as an integral part by an additive manufacturing process.2. The device of claim 1 , wherein said bifurcated torsion spring is configured to maintain a balance while being torqued.3. The device of claim 1 , wherein a material of said device comprises Ti6Al4V.4. The device of claim 1 , wherein said device comprises:a 3D printed spring flexure comprising a plurality of said elliptical bifurcating torsion springs.5. The device of claim 1 , wherein said device comprises:an assembly comprising eight said elliptical bifurcating torsion springs.6. The device of claim 1 , wherein a stiffness-spring rate of said device ...

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Номер записи: 80
10-03-2022 дата публикации

RESINOUS SPRING

Номер: US20220074459A1
Автор: KAWAZOE Takayuki, Seki Masanobu, TANAKA Kotaro
Принадлежит:

A resinous spring includes ring-shaped members disposed with gaps interposed therebetween in the direction of the spring axis and link members connecting adjacent ones of the ring-shaped members. Each ring-shaped member has vertex portions to each of which a first link member or a second link member is connectable, thin portions at which the ring-shaped member is reduced in thickness in the direction of the spring axis, and tapered portions at which the ring-shaped member is reduced in thickness in the direction of the spring axis gradually from the vertex portions to the thin portions. 1. A resinous spring comprising:a plurality of ring-shaped members disposed with gaps interposed therebetween in an axial direction of the spring; andlink members each connecting adjacent ones of the ring-shaped members, whereinthe link members include at least one first link member and at least one second link member for each of the ring-shaped members, the first link member and the second link member connecting the ring-shaped member to adjacent ones of the ring-shaped members on one side and the other side of the ring-shaped member, respectively,the first link member and the second link member are disposed at positions not facing each other in the axial direction of the spring, and vertex portions to each of which the first link member or the second link member is connectable,', 'thin portions where the ring-shaped member is reduced in thickness in the axial direction of the spring, and', 'tapered portions where the ring-shaped member is reduced in thickness in the axial direction of the spring gradually from the vertex portions to the thin portions., 'each of the ring-shaped members includes'}2. The resinous spring according to claim 1 , whereineach of the thin portions is disposed at a halfway point between two of the vertex portions adjacent in a circumferential direction of the ring-shaped member.3. The resinous spring according to claim 1 , whereinof the link members linked ...

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Номер записи: 81
10-03-2022 дата публикации

DEVICE COMPRISING A SET OF VIBRATION ABSORBERS AND VEHICLE EQUIPPED WITH SUCH A DEVICE

Номер: US20220074460A1
Автор: ARNOULD Charles, CHEVALLIER Gaël, COLLARD Eric, JABOVISTE Kevin, PEYRET Nicolas, SADOULET-REBOUL Emeline
Принадлежит:

The invention relates to a device comprising a body and a set of vibration absorbers mounted on the body, each absorber being movable relative to the body between a first position and a second position, each absorber being capable of oscillating relative to the body between its first and second positions, a first natural frequency being defined for each absorber, at least one absorber having a first natural frequency different from the first natural frequency of another absorber. 1. A device comprising a body and a set of vibration absorbers mounted on the body , each vibration absorber being capable of oscillating relative to the body between a first and a second position , a first natural frequency being defined for each vibration absorber , at least one vibration absorber having a first natural frequency different from the first natural frequency of another vibration absorber ,each vibration absorber comprising at least one deformation part capable of deforming when the vibration absorber oscillates between its first position and its second position, the deformation part having at least two faces configured to exert a shear force on each other upon deformation of the deformation part, the faces configured to exert a shear force on each other during deformation of the deformation part being configured to rub against each other during deformation of the deformation part.2. The device according to claim 1 , wherein each deformation part comprises a stack of strips superimposed along a stacking direction claim 1 , the deformation part extending along a direction of elongation between a first end and a second end fixed to the body claim 1 , the direction of elongation being perpendicular to the stacking direction claim 1 , the deformation part being configured to deform by bending upon oscillation of the vibration absorber claim 1 , the bending causing a movement of the first end along the stacking direction relative to the second end.3. The device according to claim ...

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Номер записи: 82
10-03-2022 дата публикации

Gas strut, method for producing the gas strut, drive for a flap with the gas strut

Номер: US20220074462A1
Автор: Alexander Reiser, Felix Beib, Ulrich Probst
Принадлежит: Stabilus GmbH

Provided is a gas strut, including: an outer working space arranged radially to the stroke axis between the working cylinder and the equalizing cylinder, the outer working space being connected to the inner working space in a gas-conducting manner; an equalizing piston enclosing the working cylinder radially to the stroke axis, the equalizing piston) being mounted displaceably along the stroke axis, delimiting the outer working space on one side transversely to the stroke axis and being subjected to a pressure of the working medium and a pressure of the equalizing medium so as to increase the volume of the outer working space; and a restoring medium arranged in a restoring space radially to the stroke axis between the working cylinder and the equalizing cylinder, the equalizing piston being subjected to a pressure of the restoring medium so as to decrease the volume of the outer working space.

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Номер записи: 83
10-03-2022 дата публикации

METHOD FOR SEALING LIQUID COMPOSITE SPRING

Номер: US20220074463A1
Автор: BU Jiling, DING Xingwu, LIU Guijie, WANG Yongguan, XIA Zhangyang
Принадлежит:

A method for sealing a liquid composite spring, includes the steps of: placing a sleeve-shaped outer wall around an upper portion of a core shaft, and forming an upper liquid chamber and a lower liquid chamber inside the outer wall; and arranging a sealing member at a bottom of the outer wall to seal the lower liquid chamber, wherein the sealing member is made of flexible material. The liquid composite spring is provided with the rigid outer wall and the flexible sealing member. The volume and shape of the lower liquid chamber can be changed through the flexible sealing member, so that the chamber is formed as a flexible chamber. 111.-. (canceled)12. A method for sealing a liquid composite spring , comprising steps of:placing a sleeve-shaped outer wall around an upper portion of a core shaft, and forming an upper liquid chamber and a lower liquid chamber inside the outer wall; andarranging a sealing member at a bottom of the outer wall to seal the lower liquid chamber,wherein the sealing member is made of flexible material.13. The method for sealing the liquid composite spring according to claim 12 , wherein the sealing member has a main body of an annular structure claim 12 , and an outer edge which is provided with a connecting edge extending along an axial direction of the outer wall claim 12 , the connecting edge having an upper terminal connected to the bottom of the outer wall.14. The method for sealing the liquid composite spring according to claim 13 , wherein the sealing member is sealingly connected with the outer wall through mounting a metal ring at the upper terminal of the connecting edge of the sealing member and fixing the metal ring at the bottom of the outer wall.15. The method for sealing the liquid composite spring according to claim 14 , wherein an upper end of the metal ring is provided at its inner side with a flange claim 14 , the upper terminal of the connecting edge being abutted against a bottom surface of the flange claim 14 , andthe ...

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Номер записи: 84
10-03-2022 дата публикации

INSTRUMENT MOUNT MOVABLE PLATFORM COMPRISING SUCH INSTRUMENT MOUNT AND USE OF SUCH INSTRUMENT MOUNT

Номер: US20220074464A1
Автор: Strömberg Jan-Erik
Принадлежит:

The present disclosure provides a mount () for mounting an instrument to a movable platform. The mount comprises a base part (), attachable to the platform, an instrument part (), to which the instrument is attachable, and a spring and damper arrangement () operable between the base part () and the instrument part () to allow the instrument part () to move relative to the base part (). The mount further comprises first and second lever sets (), each lever set comprising at least two parallel and spaced apart levers (), which are rigidly connected to each other and which are pivotably connected to one of the base part () and the instrument part (). The lever sets () are pivotable about respective first and second geometric axes, which are non-parallel with each other. The lever sets are pivotable about a respective proximal portion () of the lever (). A distal portion () of each of the levers () is connected to the other one of the base part and the instrument part by a respective elongate flexible member () presenting internal hysteresis. The disclosure also provides a movable platform comprising such mount and use of such mount for mounting an instrument to a movable platform. 1. A mount for mounting an instrument to a movable platform ,the mount comprising:a base part, attachable to the platform,an instrument part, to which the instrument is attachable,a spring and damper arrangement operable between the base part and the instrument part to allow the instrument part to move relative to the base part, andfirst and second lever sets, each lever set comprising at least two parallel and spaced apart levers, which are rigidly connected to each other and which are pivotably connected to one of the base part and the instrument part,wherein the lever sets are pivotable about a respective proximal portion of the lever,whereinthe lever sets are pivotable about respective first and second geometric axes, which are non-parallel with each other, anda distal portion of each of ...

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Номер записи: 85
01-03-2018 дата публикации

HYDRAULIC ENGINE MOUNT WITH TWO CHANNELS

Номер: US20180056771A1
Автор: JO Woo Seon
Принадлежит:

A hydraulic engine mount with two channels is provided, which reduces vibration effectively in ignition mode and rough road mode, improves performance in noise, vibration, harshness (NVH) in a vehicle with stop/start function. The hydraulic engine mount with two channels, provided with a dividing means, comprises a first channel formed along a first path of the dividing means and providing a moving path of fluid between an upper fluid chamber and a lower fluid chamber, a second channel formed along a second path of the dividing means and providing a moving path of fluid between the upper fluid chamber and the lower fluid chamber, and a solenoid device having a first solenoid valve body installed in the housing and configured for opening and closing the second channel. 1. A hydraulic engine mount having a dividing means for dividing an inner space of a housing into an upper fluid chamber and a lower fluid chamber , the hydraulic engine mount comprising:a first channel formed along a first path of the dividing means and providing a moving channel of fluid between the upper fluid chamber and the lower fluid chamber;a second channel formed along a second path of the dividing means and providing a moving channel of fluid between the upper fluid chamber and the lower fluid chamber; anda solenoid device installed in the housing and having a first solenoid valve body for opening and closing the second channel,wherein the dividing means forms an air chamber below a membrane, which is connected to an external atmosphere through the membrane installed on a top surface,wherein the solenoid device comprises a second solenoid valve body for opening and closing an entrance of the air chamber, andwherein if the first solenoid valve body and the second solenoid valve body close the second channel and the air chamber the fluid operates through the first channel generating the peak damping at a first frequency range of relatively low frequencies and maintains the closed state of the ...

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Номер записи: 86
02-03-2017 дата публикации

BICYCLE DAMPER

Номер: US20170057592A1
Автор: McAndrews Michael
Принадлежит:

A damper for a bicycle, having a primary unit including a damper tube, a piston rod that supports a main piston, a reservoir tube that is outside of the compression chamber of the primary tube, and an inertial valve within the reservoir tube. The damper also includes a flow path connecting the reservoir fluid chamber and the compression chamber of the primary tube. The damper also may have a damping valve in the reservoir tube. When the inertia valve is open, the damping valve opens before flow through the inertia valve is maximized. The main piston and the damper tube at least partially define a compression chamber and a rebound chamber. The main piston is movable within the damper chamber of the primary unit. The reservoir tube includes a reservoir fluid chamber. The inertial valve is responsive to terrain-induced forces and not responsive to rider-induced forces when the shock absorber is assembled to the bicycle. 1. (canceled)2. A method of damping motion using a damper coupled to a bicycle frame , the damper comprising a primary unit and a reservoir tube , the reservoir tube positioned outside of a damper tube of the primary unit , the damper tube and reservoir tube fluidly coupled by a flow path , the method comprising:providing a damping fluid within a compression chamber of the damper tube, the compression chamber defined at least partially by a wall of the damper tube and a main piston movably positioned within the damper tube;resisting, by the damping fluid, movement of the main piston within the damper tube in a direction that reduces a size of the compression chamber; opening, responsive to a terrain-induced force, an inertia valve within the reservoir tube, the opening of the inertia valve allowing at least some fluid to flow from the compression chamber of the damper tube into a reservoir chamber of the reservoir tube through the inertia valve; and', 'allowing, responsive to a 50 pounds or greater force being applied to a damping valve within the ...

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Номер записи: 87
04-03-2021 дата публикации

VARIABLE STEERING WHEEL DAMPER USING ELECTROMAGNET

Номер: US20210061338A1
Автор: ROH Dong-Gwan, SON Byung-Chul
Принадлежит:

A steering wheel damper may include a plate fastened to a hub of a steering wheel; one or more posts each having one side fixed to a surface of the plate and the other side extending perpendicular to the surface of the plate; a mass body spaced from the plate, attached to the other side of the post, supported by the posts, and having upper and lower portions configured as magnet bodies having different polarities; and an electromagnet made by winding a coil around a core fixed to the surface of the plate. 1. A damper apparatus mounted in a steering wheel of a vehicle , the damper apparatus comprising:a plate fastened to a hub of the steering wheel;at least one post made of rubber, wherein each of the at least one post has a first side fixed to a surface of the plate and a second side extending perpendicular to the surface of the plate;a mass body spaced from the plate, attached to the second side of the at least one post, supported by the at least one post, and configured as a magnet body; andan electromagnet formed a coil wound around a core fixed to the surface of the plate.2. The damper apparatus of claim 1 , wherein the mass body is formed of upper and lower portions configured as magnet bodies disposed to be adjacent to each other and having different polarities claim 1 , respectively.3. The damper apparatus of claim 1 , wherein a repulsive force or attractive force is exerted on the mass body while a current is applied to the coil of the electromagnet.4. The damper apparatus of claim 3 , wherein a rigidity of the rubber in the at least one post is changed claim 3 , and thus a natural frequency of the damper apparatus is adjusted based on a changed amount in the rigidity of the rubber.5. The damper apparatus of claim 1 , including:a controller configured to store a rotation speed value of an engine under an operation condition of the engine and to apply, to the electromagnet, a predetermined amount of current, which corresponds to the stored rotation speed ...

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Номер записи: 88
01-03-2018 дата публикации

HYDRAULIC SHOCK-ABSORBER FOR A VEHICLE SUSPENSION

Номер: US20180058533A1
Автор: Bruno Walter, Conti Piero Antonio, Greco Giordano
Принадлежит:

The hydraulic shock-absorber comprises a hydraulic stop member having a cup-shaped body, which is adapted to be mounted in a compression chamber, and a plunger, mounted at an end of a rod of the shock-absorber so as to slide in the cup-shaped body when the shock-absorber moves towards the compression end-of-travel position. The cup-shaped body comprises a side wall and a bottom wall which define, along with the plunger, a working chamber in which a damping fluid of the shock-absorber is compressed by the plunger when the latter slides in the working chamber towards the bottom wall of the body. Axial channels are formed on the inner surface of the side wall of the body and allow the damping fluid to flow axially out of the working chamber when the plunger slides in the working chamber towards the bottom wall of the cup-shaped body. The axial channels extend parallel to a longitudinal axis (z) of the cup-shaped body and have a cross-section whose area decreases continuously along this axis (z) towards the bottom wall of the cup-shaped body. 1. A hydraulic shock-absorber for a vehicle suspension , comprising a first cylindrical tube , a rod which is arranged coaxially and projects partially from , the first cylindrical tube , and a piston attached to an end portion of the rod , the piston being slidably mounted in the first cylindrical tube and separating an inner volume of the first cylindrical tube into a rebound chamber and a compression chamber in which a damping fluid is contained , the shock-absorber further comprising a first valve assembly on the piston) , a second valve assembly on a bottom end of the compression chamber , and a hydraulic stop member which is mounted in the compression chamber and is adapted to operate during the compression stroke of the shock-absorber to hydraulically dissipate kinetic energy when the piston of the shock-absorber moves towards a compression end-of-travel position ,wherein the hydraulic stop member comprises a cup-shaped body ...

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Номер записи: 89
20-02-2020 дата публикации

RUBBER COMPOSITION FOR ANTI-VIBRATION RUBBER AND ANTI-VIBRATION RUBBER FOR VEHICLE

Номер: US20200056015A1
Автор: YATAGAI Mamoru
Принадлежит: BRIDGESTONE CORPORATION

Provided is a rubber composition for anti-vibration rubber having excellent high-loss properties while maintaining a favorably low dynamic-to-static modulus ratio. The rubber composition for anti-vibration rubber includes a rubber component containing a diene rubber, more than 0 parts by mass and 10 parts by mass or less of carbon black with respect to 100 parts by mass of the rubber component, and 50 parts by mass to 70 parts by mass of oil with respect to 100 parts by mass of the rubber component. 1. A rubber composition for anti-vibration rubber , comprisinga rubber component containing a diene rubber,more than 0 parts by mass and 10 parts by mass or less of carbon black with respect to 100 parts by mass of the rubber component, and50 parts by mass to 70 parts by mass of oil with respect to 100 parts by mass of the rubber component.2. The rubber composition for anti-vibration rubber according to claim 1 , wherein the rubber component contains at least a natural rubber and a butadiene rubber as the diene rubber claim 1 , and a mass ratio of the natural rubber to the butadiene rubber claim 1 , expressed as NR: BR claim 1 , is in a range of 60:40 to 10:90.3. The rubber composition for anti-vibration rubber according to claim 1 , wherein the carbon black is contained in an amount of 2 parts by mass or less with respect to 100 parts by mass of the rubber component.4. The rubber composition for anti-vibration rubber according to claim 1 , wherein the rubber composition for anti-vibration rubber further contains a crosslinking agent claim 1 , and the crosslinking agent is contained in an amount of more than 0 parts by mass and 3.5 parts by mass or less with respect to 100 parts by mass of the rubber component.5. An anti-vibration rubber for vehicle using a crosslinked rubber composition for anti-vibration rubber obtained by crosslinking the rubber composition for anti-vibration rubber according to claim 1 , wherein the crosslinked rubber composition for anti-vibration ...

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Номер записи: 90
04-03-2021 дата публикации

Lift system having a signal generation unit arranged on a lift car of the lift system

Номер: US20210062887A1
Автор: Schmidt Klaus
Принадлежит:

A vibration damper with an adjustable damping force may comprise an inner cylinder having at least one working chamber, an outer cylinder that surrounds the inner cylinder, and at least one damping valve element that in terms of flow is connected via a flow connection to the working chamber. An adapter sleeve may guide the flow connection, with the adapter sleeve being inserted in the inner cylinder on an internal circumference of the inner cylinder. The flow connection may be guided into the damping valve element by way of a flow opening that is configured in a wall of the inner cylinder. 19.-. (canceled)10. A vibration damper having an adjustable damping force , the vibration damper comprising:an inner cylinder having a working chamber;an outer cylinder that surrounds the inner cylinder;a damping valve element disposed on the outer cylinder, wherein with respect to flow the damping valve element is connected to the inner cylinder via a flow connection; andan adapter sleeve that guides the flow connection, the adapter sleeve being inserted in the inner cylinder on an internal circumference of the inner cylinder.11. The vibration damper of wherein the flow connection is guided into the damping valve element by way of a flow opening that is configured in a wall of the inner cylinder.12. The vibration damper of wherein the flow connection is guided by way of a connector port from the adapter sleeve to the damping valve element claim 11 , the connector port being inserted in the flow opening.13. The vibration damper of wherein the connector port in a sealing manner is inserted in a bore configured in a circumferential wall of the adapter sleeve.14. The vibration damper of wherein the connector port is sealed relative to the adapter sleeve by way of an annular sleeve.15. The vibration damper of wherein the bore is a first bore and the connector port is a first connector port claim 13 , the vibration damper comprising a second bore for inserting a second connector port ...

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Номер записи: 91
28-02-2019 дата публикации

Switchable Hydraulic Mount

Номер: US20190063543A1
Автор: Hermann Waldemar, Khlistunov Dimitri, Raida Hans-Joachim, RIES Holger
Принадлежит:

A switchable hydraulic mount includes a first fluid chamber delimited by a spring body, a second fluid chamber fluidically connected to the first fluid chamber, a decoupling element for decoupling the chambers, and arranged between the first fluid chamber and a decoupling chamber, the chambers being fluidically separated from one another, and a switchable valve to selectively open or close the decoupling chamber with respect to the environment, the switchable valve including a valve housing with a linear actuator including an actuator head displaceable in the valve housing between closed and open positions, the valve housing including at least one valve opening which, in the open position, connects the decoupling chamber to the environment and which, in the closed position, is closed by the actuator head, and the valve opening including at least a component of extension transverse with respect to the movement axis of the actuator head. 1. A switchable hydraulic mount , comprising:a first fluid chamber,a spring body which partially delimits the first fluid chamber,a second fluid chamber,at least one fluid channel which fluidically connects the second fluid chamber to the first fluid chamber, so that, during compression and rebound of the spring body, a damping fluid can flow between the first fluid chamber and the second fluid chamber,a decoupling chamber,a decoupling element for decoupling the first fluid chamber and the second fluid chamber, wherein the decoupling element is arranged between the first fluid chamber and the decoupling chamber, and said first fluid chamber, the second fluid chamber and the decoupling chamber are fluidically separated from one another, anda switchable valve which is adapted to selectively open or close the decoupling chamber with respect to the environment, in order to vary a decoupling action of the decoupling element,wherein the switchable valve comprises a valve housing with a linear actuator arranged therein,wherein the linear ...

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Номер записи: 92
08-03-2018 дата публикации

DYNAMIC DAMPER, VIBRATION ISOLATOR, AND METHOD FOR MANUFACTURING MAGNETIC VISCOUS ELASTOMER

Номер: US20180066723A1
Автор: INOUE Toshio, Komatsuzaki Toshihiko
Принадлежит:

This dynamic damper is provided with a movable part that can be moved by external input, and an excitation coil for generating a magnetic field of an intensity corresponding to a supplied electric current. The movable part is configured to include: first and second magnetic cores in which magnetic paths, which are pathways for the magnetic field generated by the excitation coil, are configured as annular closed magnetic paths; and a magnetic viscous elastomer of which the viscous properties change in accordance with the size of the magnetic field generated by the excitation coil. The magnetic viscous elastomer is arranged so as link at least one location in the first and second magnetic cores and constitutes a closed magnetic path. 1. A dynamic damper comprising:a housing made of non-magnetic material;a movable part movable in response to an external input force;an exciting coil that generates a magnetic field having an intensity corresponding to a current supplied thereto;a magnetic viscoelastic elastomer having a magnetic viscoelastic property controlled in accordance with a magnitude of magnetic field generated by the exciting coil;a plurality of magnetic members forming a magnetic path transmitting the magnetic field generated by the exciting coil as an annular closed magnetic circuit,wherein the movable parts includes at least one of a plurality of the magnetic members; andwherein the magnetic viscoelastic elastomer is disposed to form the closed magnetic circuit by connecting one of the magnetic members forming the movable part to another one of the magnetic members.2. The dynamic damper as claimed in claim 1 , wherein a plurality of the magnetic members comprise a first magnetic core and a second magnetic core that form the movable part;wherein the magnetic viscoelastic elastomer is connected between the first magnetic core and the second magnetic core in a direction perpendicular to a movable direction; andwherein the magnetic viscoelastic elastomer includes ...

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Номер записи: 93
27-02-2020 дата публикации

GEOMETRICALLY NONLINEAR VIBRATION ISOLATION SYSTEM

Номер: US20200063824A1
Автор: CHANG Chia-Ming, HUANG Shieh-Kung, YANG Cho-Yen
Принадлежит:

The geometrically nonlinear isolation system of the present invention includes a bearing platform, an isolator and a damper. The isolator is connected with the bearing platform and used for providing resilience against horizontal relative displacement between the bearing platform and the isolator. The damper is pin-jointed to the bearing platform and has an axis orthogonal or oblique to the horizontal direction. Accordingly, when the bearing platform and the isolator move with respect to each other along the horizontal direction, the angle between the axis of the damper and the horizontal direction would change with the horizontal displacement, and the damper provides damping force along a direction parallel to the axis of the damper so as to enhance horizontal vibration isolation effect. 1. A geometrically nonlinear vibration isolation system , comprising:a bearing platform for a vibration-isolated object disposed thereon;an isolator connected to the bearing platform and configured to cooperate with the bearing platform for providing resilience against relative displacement in a horizontal direction between the bearing platform and the isolator; anda damper pin-connected to the bearing platform, wherein (i) an axis of the damper is orthogonal to or oblique to the horizontal direction when no external force is applied thereto, (ii) the relative displacement in the horizontal direction between the bearing platform and the isolator induces a change in an angle between the axis of the damper and the horizontal direction, and (iii) the damper provides a damping force along a direction parallel to the axis against the relative displacement.2. The geometrically nonlinear vibration isolation system of claim 1 , wherein the isolator is disposed under the bearing platform claim 1 , and the damper has two opposite ends pin-connected to the bearing platform and the isolator claim 1 , respectively.3. The geometrically nonlinear vibration isolation system of claim 2 , wherein ...

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Номер записи: 94
11-03-2021 дата публикации

A DAMPER UNIT, A DAMPER ASSEMBLY, METHODS OF MAKING A DAMPER UNIT AND A DAMPER ASSEMBLY

Номер: US20210070355A1
Автор: MYKLEBUST Erik
Принадлежит: VIBRACOUSTIC FORSHEDA AB

A damper unit for use in a vibration-reducing assembly for a steering wheel is disclosed. An elastomeric damper element is molded on an inner sleeve and includes a plurality of elastomeric ribs forming a radially outer engagement surface, and a plurality of elastomeric support studs, which are mutually spaced in a circumferential direction are flexible in all directions transverse to said axis. Methods for making a damper unit and a damper assembly are also disclosed. 131.-. (canceled)32. A damper unit for use in a frequency-tuned vibration damper assembly for a steering wheel , said damper unit having an insertion end and an opposite rear end , and being configured to be inserted with the insertion end of the damper unit through a mounting opening provided in a horn plate of said damper assembly , a sleeve having a central bore extending along an axis, and', 'an elastomeric damper element which is molded on a radial outer side of the sleeve such that the sleeve and the damper element together form a unitary structure,, 'said damper unit comprisingwherein:the elastomeric damper element includes an elastomeric insertion part configured to be inserted into the mounting opening of the horn plate, and an elastomeric support part configured to define a final mounting position of the damper unit,the elastomeric insertion part includes a plurality of elastomeric ribs which extend at least partially along said axis and are mutually spaced in a circumferential direction in relation to said axis, said ribs together forming a radially outer engagement surface configured to be brought into direct engagement with an inner surface of said mounting opening,the radially outer engagement surface has a first radial dimension, and the elastomeric support part has a second radial dimension, larger than said first radial dimension,at least some of the elastomeric ribs present a radially outward extending snap-lock protrusion configured to be inserted through the mounting opening to snap ...

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Номер записи: 95
11-03-2021 дата публикации

SPIRAL INERTIA TRACK VIBRATION ABSORBER

Номер: US20210071733A1
Автор: OTT MARK
Принадлежит: ITT Manufacturing Enterprises LLC

Technologies are described for devices to absorb vibration. The devices may comprise an inertia track housing, an inertia track fluid reservoir, and an inertia track body. The inertia track fluid reservoir and the inertia track body may be within the inertia track housing. Walls of the inertia track body may define a first and a second spiral inertia track. The first and second spiral inertia tracks may be spiral channels within the outer surface of the inertia track body. The first spiral inertia track may connect a first fluid reservoir with the inertia track fluid reservoir. The second spiral inertia track may connect a second fluid reservoir with the inertia track fluid reservoir. The first and second spiral inertia tracks may be configured to channel the flow of a fluid along the first spiral inertia track and the second spiral inertia track and interact with the fluid to absorb vibration. 1. A device to absorb vibration , the device comprising:an inertia track housing;an inertia track fluid reservoir; wherein the inertia track fluid reservoir is within the inertia track housing; andan inertia track body; wherein the inertia track body is within the inertia track housing, the inertia track body includes walls, and the walls define a first spiral inertia track and a second spiral inertia track within an outer surface of the inertia track body, wherein the first spiral inertia track and the second spiral inertia track are spiral channels within the outer surface of the inertia track body, the first spiral inertia track connects a first fluid reservoir with the inertia track fluid reservoir, the second spiral inertia track connects a second fluid reservoir with the inertia track fluid reservoir, the first spiral inertia track is configured to channel the flow of a fluid along the first spiral inertia track, the second spiral inertia track is configured to channel the flow of the fluid along the second spiral inertia track, and a combination of the flow of the ...

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Номер записи: 96
15-03-2018 дата публикации

FRICTIONAL DAMPER

Номер: US20180073589A1
Автор: Bauer Michael, Weder Michael
Принадлежит:

A frictional damper comprises a housing which has a longitudinal axis, a plunger which can be moved along the longitudinal axis, a frictional unit for generating a frictional force on the plunger, the frictional unit comprising at least one friction lining for bearing rubbingly against the plunger, and a friction lining carrier, on which the at least one friction lining is held, the friction lining carrier being arranged such that it can be moved relative to the plunger in the housing between a pulled-out position and a pushed-in position, and a pulled-out friction acting in the pulled-out position, which pulled-out friction is different from the pushed-in friction which acts in the pushed-in position. 1. A frictional damper comprising{'b': 2', '2', '3, 'i': 'a', 'a. a housing (; ) which has a longitudinal axis (),'}{'b': 4', '4, 'i': 'a', 'b. a plunger (; ) which can be moved along the longitudinal axis (3),'}{'b': 24', '4', '4', '24, 'i': 'a', 'claim-text': {'b': 25', '4', '4, 'i': 'a', 'i. at least one friction lining () for bearing rubbingly against the plunger (; ),'}, 'c. a frictional unit () for generating a frictional force on the plunger (; ), the frictional unit () comprising'}{'b': 26', '25, 'ii. a friction lining carrier (), on which the at least one friction lining () is held,'}{'b': 26', '4', '4', '2', '2, 'i': a', 'a, 'the friction lining carrier () being arranged such that it can be moved relative to the plunger (; ) in the housing (; ) between a pulled-out position and a pushed-in position. a pulled-out friction acting in the pulled-out position, which pulled-out friction is different from the pushed-in friction which acts in the pushed-in position.'}224442644404441aaa. A frictional damper according to claim 1 , wherein the frictional unit () interacts with the plunger (; ) in such a way that the friction lining carrier () is moved into the pulled-out position during a movement of the plunger (; ) in the pulling-out direction () claim 1 , and is ...

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Номер записи: 97
07-03-2019 дата публикации

Damping force variable valve

Номер: US20190072148A1
Автор: Kosuke Sakai
Принадлежит: Aisin Seiki Co Ltd

A damping force variable valve includes a case accommodating working fluid, a housing, a first fluid chamber, a second fluid chamber, and a valve element provided at the housing. The valve element includes a first end portion configured to be in contact with a first contact portion formed at a part of the housing, the valve element configured to perform reciprocating motion within an inner space portion of the housing. The damping force variable valve includes an actuator provided at the housing and including a second contact portion configured to be in contact with a second end portion of the valve element. One of the first end portion, the first contact portion, the second end portion and the second contact portion is provided with a communication portion including an opening. An opening area of the opening changes in accordance with a pressing force from the actuator.

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Номер записи: 98
07-03-2019 дата публикации

SYSTEMS AND METHODS FOR DAMPING PHOTOVOLTAIC PANEL ARRAYS

Номер: US20190072150A1
Автор: Kull James T., Löhken Lars, Müller Markus, Schilz Arnold
Принадлежит: Stabilus GmbH

Damper includes a housing having proximal and distal ends, a first attachment point proximate the distal end of the housing, a rod having proximal and distal ends at least partially disposed within the housing and moveable relative to the housing between an extended position and a compressed position, a second attachment point proximate the proximal end of the rod, a piston joined to the rod within the housing proximate the distal end of the rod, the piston including a bypass groove having a flow area defined therein to allow fluid to flow from a first side of the piston to an opposing side of the piston, and a first washer disposed proximate a first end of the piston and at least partially covering the flow area of the bypass groove. 1. A damper for reducing vibrations in a rotatable photovoltaic panel array , wherein the damper is configured to provide a first damping force during slow movement of the photovoltaic array and a second damping force during fast movement of the array , the second damping force being greater than the first damping force , the damper comprising:a housing having proximal and distal ends;a first attachment point proximate the distal end of the housing;a rod having proximal and distal ends at least partially disposed within the housing and moveable relative to the housing between an extended position and a compressed position;a second attachment point proximate the proximal end of the rod;a piston joined to the rod within the housing proximate the distal end of the rod, the piston including a bypass groove having a flow area defined therein to allow fluid to flow from a first side of the piston to an opposing side of the piston; anda first washer disposed proximate a first end of the piston and at least partially covering the flow area of the bypass groove, the first washer configured to deflect to uncover the flow area of the bypass groove at a selected maximum damping force such that the damper assembly is configured to apply no more ...

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Номер записи: 99
07-03-2019 дата публикации

METHOD FOR STABILIZING TRANSVERSAL OSCILLATIONS OF A ROTOR

Номер: US20190072153A1
Автор: GUGLIELMO Alberto, PANARA Daniele
Принадлежит:

A method for stabilizing transversal oscillations of a rotor including the steps of acquiring a first signal representing a value of transversal oscillations of a rotor; estimating a value of a thermal gradient from the first signal; computing a value of an actuation parameter from the value of thermal gradient; emitting an actuation signal representing the value of the actuation parameter. 1. A method for stabilizing transversal oscillations of a rotor , the method comprising the steps of: acquiring a first signal representing a value of transversal oscillations of a rotor; estimating a value of a thermal gradient from the first signal; computing a value of an actuation parameter from the value of thermal gradient; emitting an actuation signal representing the value of the actuation parameter.2. The method according to claim 1 , wherein the phase of computing a value of an actuation parameter comprises the subphase of extracting a reference value from a stored numerical model of the rotor; comparing the value of the thermal gradient with the reference value.3. The method according to claim 1 , wherein the phase of computing a value of an actuation parameter comprises the subphase of checking if the thermal gradient falls within a zone of instability of the numerical model of the rotor.4. The method according to claim 1 , wherein the actuation signal is emitted after the instability check only if the thermal gradient is within a zone of instability.5. The method according to claim 2 , wherein the step of computing a value of an actuation parameter comprises the step of estimating a thermal unbalance parameter from the stored numerical model of the rotor and the thermal gradient claim 2 , the actuation signal being at least in part proportional to the thermal unbalance parameter.6. A device for stabilizing transversal oscillations of a rotor comprising a sensor configured to measure transversal oscillations of the rotor and to emit a first signal representing a value ...

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Номер записи: 100