Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 3055. Отображено 100.
06-01-2022 дата публикации

METHOD AND APPARATUS FOR CONTROLLING ANTI-YAW DAMPER

Номер: US20220001904A1
Автор: CAO Hongyong, CAO Xiaoning, KONG Haipeng, WANG Xu, ZHOU Pingyu
Принадлежит:

Provided is a method for controlling an anti-yaw damper, including: obtaining lateral acceleration signals of a frame and performing a first preprocessing on the lateral acceleration signals; obtaining a pressure difference between two chambers of an anti-yaw damper piston and performing a second preprocessing of the pressure difference; obtaining an MPPT algorithm objective function value at the current moment and an MPPT algorithm objective function value at the previous moment according to first preprocessing results and second preprocessing results, and comparing the MPPT algorithm objective function value at the current moment with the MPPT algorithm objective function value at the previous moment; and controlling the adjustment direction of an electromagnetic proportional valve of the anti-yaw damper according to the comparison result. According to the method, the damping force of the anti-yaw damper can be adjusted in real time, therefore the adaptability of the damper in different wheel wear conditions and the kinetic stability of a motor train unit are improved. Also provided is an apparatus for controlling an anti-yaw damper. 1. A method for controlling an anti-yaw damper , comprising:obtaining lateral acceleration signals of a frame and performing a first preprocessing on the lateral acceleration signals;obtaining a pressure difference between two chambers of a piston of an anti-yaw damper and performing a second preprocessing on the pressure difference;obtaining an MPPT algorithm objective function value at the current moment and an MPPT algorithm objective function value at the previous moment according to first preprocessing results and second preprocessing results, and comparing the MPPT algorithm objective function value at the current moment with the MPPT algorithm objective function value at the previous moment; andcontrolling the adjustment direction of an electromagnetic proportional valve of the anti-yaw damper according to the comparison result ...

Подробнее
Номер записи: 1
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 ...

Подробнее
Номер записи: 2
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.

Подробнее
Номер записи: 3
03-01-2019 дата публикации

ROTATIONAL INERTER AND METHOD

Номер: US20190003548A1
Автор: Fox Michael T., Roach Jeffrey M.
Принадлежит:

An apparatus for damping an actuator includes an inerter. The inerter includes a first terminal and a second terminal movable relative to one another and configured to be mutually exclusively coupled to a support structure and a movable device actuated by an actuator. The inerter further includes a threaded shaft coupled to and movable along the inerter axis with one of the first terminal and the second terminal. The inerter additionally includes a flywheel rotatable in proportion to movement of the threaded shaft in response to axial acceleration of the first terminal relative to the second terminal during actuation of the movable device by the actuator. The inerter reduces actuator-load-oscillatory amplitude at resonance of the actuator and movable device relative to the actuator-load-oscillatory amplitude that would otherwise occur using the same actuator without an inerter. 1. An apparatus for damping an actuator , comprising: a first terminal and a second terminal movable relative to one another along an inerter axis and mutually exclusively couplable to a support structure and a movable device actuated by the actuator;', 'a threaded shaft coupled to and movable along the inerter axis with one of the first terminal and the second terminal;', 'a flywheel rotatable in proportion to movement of the threaded shaft in response to axial acceleration of the first terminal relative to the second terminal during actuation of the movable device by the actuator; and', 'the inerter reducing actuator-load-oscillatory amplitude at resonance of the actuator and of the movable device relative to the actuator-load-oscillatory amplitude that would otherwise occur using the actuator without the inerter, such that the actuator size and weight of the actuator is reduced., 'an inerter, including2. The apparatus of claim 1 , further including:a rod coupled to and movable with the first terminal;the threaded shaft is coupled to and movable with the second terminal;the flywheel having ...

Подробнее
Номер записи: 4
13-01-2022 дата публикации

Flexible flywheel

Номер: US20220010859A1
Автор: Akira Sato, Tsuyoshi Ota
Принадлежит: Aisin Takaoka Co Ltd

A flexible flywheel includes: a shaft fastening portion fixed to an end portion of an engine crankshaft; an annular inertia ring provided around the shaft fastening portion; a plurality of elastic spoke portions which extend in the radial direction between the shaft fastening portion and the inertia ring and connect the shaft fastening part and the inertia ring to each other, and that absorb vibration acting on the crankshaft by undergoing deflection; and weight portions provided between adjacent ones of the elastic spoke portions. The fastening portion, inertial ring, elastic spoke portions, and weight portions are formed integrally by casting or forging.

Подробнее
Номер записи: 5
14-01-2016 дата публикации

Rotary damper for a vehicle

Номер: US20160009158A1
Автор: Daniel Wolf, Detlef Baasch
Принадлежит: ZF FRIEDRICHSHAFEN AG

A rotary damper, for a vehicle, for damping relative movements between vehicle wheels and the vehicle body. The at least one gear assembly has several gearwheels in functional connection by virtue of rotational movement of which hydraulic medium can be displaced for the purpose of hydraulic damping for the vehicle.

Подробнее
Номер записи: 6
27-01-2022 дата публикации

Hybrid Rotational Passive Energy Absorber

Номер: US20220025949A1
Автор: Farid Maor
Принадлежит:

A hybrid rotational passive energy absorber () is configured to mitigate effects of a load on an attached system. An axle () is anchored to a housing () at a first axle end and a second axle end. A free swinging weighted arm () includes a beam () having a length L, a pivot portion () disposed at a first end of the beam, and an internal mass () at a second end of the beam. A bearing () rotatably connects the pivot portion to the axle. The bearing is configured to provide smooth motion of the weighted arm around an axis () of the axle in a rotation and/or oscillation plane orthogonal to the axis. 1100. A hybrid rotational passive energy absorber () configured to mitigate effects of a load on an attached system , comprising:{'b': '110', 'a housing ();'}{'b': '170', 'an axle () anchored to the housing at a first axle end and a second axle end;'}{'b': 180', '130', '185', '120, 'a free swinging weighted arm () comprising a beam () having a length L, a pivot portion () disposed at a first end of the beam, and an internal mass () at a second end of the beam; and'}{'b': '160', 'a bearing () configured to rotatably connect the pivot portion to the axle,'}{'b': '150', 'wherein the bearing is configured to provide smooth motion of the weighted arm around an axis () of the axle in a plane of rotation and/or oscillation orthogonal to the axis, and the weighted arm is configured to passively adapt to respond to a first energy excitation with a full rotation around the axle and to respond to a second energy excitation smaller than the first energy excitation with an oscillation of less than a full rotation around the axle.'}2. The hybrid rotational passive energy absorber of claim 1 , wherein the axle comprises a bolt.3. The hybrid rotational passive energy absorber of claim 2 , wherein the axle is affixed to the housing with a nut.4. The hybrid rotational passive energy absorber of claim 1 , wherein the housing comprises a steel chassis.5. The hybrid rotational passive energy ...

Подробнее
Номер записи: 7
10-01-2019 дата публикации

WHEEL FOR A HUMAN-POWERED VEHICLE

Номер: US20190009848A1
Автор: Bodill Robert G., Hanson Alexander C.H., Long James A.
Принадлежит:

In an aspect, there is provided a wheel for a human-powered vehicle, comprising a wheel hub () rotatably mountable on a central axle () defining a wheel rotation axis, a first cover () secured to the wheel hub, a circumferential rim () structured to fully support a tyre () thereon, and a second cover () secured to one of the wheel hub and the first cover adjacent the wheel hub, and mating with the first cover distal from the wheel hub. 1. A wheel for a human-powered vehicle , comprising:a wheel hub rotatably mountable on a central axle defining a wheel rotation axis;a first cover secured to the wheel hub, and comprising a circumferential rim structured to fully support a tyre thereon;a second cover releasably secured to one of the wheel hub and the first cover adjacent the wheel hub, and mating with the first cover distal from the wheel hub, the first cover and the second cover defining an enclosure therebetween; anda flywheel structure positioned in the enclosure, comprising a flywheel extending from a collar rotatably coupled to the wheel hub enabling rotation of the flywheel generally about the wheel rotation axis, the flywheel being removable from the wheel hub.2. A wheel according to claim 1 , wherein the first cover comprises the circumferential rim coupled to a separate disc portion.3. (canceled)4. A wheel according to claim 1 , wherein the second cover comprises a first circumferential rib that snugly abuts the circumferential rim when the second cover is secured to the one of the wheel hub and the first cover.5. A wheel according to claim 4 , wherein the second cover comprises a second circumferential rib concentric with and adjacent to the first circumferential rib defining a circumferential groove that snugly receives the circumferential rim.6. (canceled)7. (canceled)8. A wheel according to claim 1 , wherein the flywheel is releasably secured to the collar.9. A wheel according to claim 1 , wherein the flywheel structure is releasably coupled to the wheel ...

Подробнее
Номер записи: 8
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.

Подробнее
Номер записи: 9
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 ...

Подробнее
Номер записи: 10
10-01-2019 дата публикации

ACTIVE VIBRATION DAMPER FOR A VEHICLE DRIVELINE COMPONENT

Номер: US20190011013A1
Автор: Heaton Jeffrey N., Mao Xiaofeng, Mrdeza Scott C., Xu Hai
Принадлежит:

A system includes a vibration damper coupled for rotation with a rotating body. The vibration damper includes one or more fluid pockets. A reactive fluid is arranged in the one or more fluid pockets. The reactive fluid is configured to undergo a property change upon being exposed to a selected force. A force producing mechanism is fixedly mounted relative to the vibration damper, the force producing mechanism being operable to selectively produce the selected force. 1. A system comprising:a vibration damper coupled for rotation with a rotating body, the vibration damper including one or more fluid pockets;a reactive fluid arranged in the one or more fluid pockets, the reactive fluid being configured to undergo a property change upon being exposed to a selected force; anda force producing mechanism fixedly mounted relative to the vibration damper, the force producing mechanism being operable to selectively produce the selected force.2. The system according to claim 1 , wherein the one or more fluid pockets comprises a plurality of discrete fluid pockets.3. The system according to claim 2 , wherein the plurality of discrete fluid pockets are arranged in an annular array about the vibration damper.4. The system according to claim 2 , wherein the vibration damper includes a first portion formed out of a first material claim 2 , a second portion formed out of a second material claim 2 , and a third portion formed from a third material claim 2 , the second material being distinct from at least one of the first material and the third material.5. The system according to claim 4 , wherein the second portion is disposed between the first portion and the third portion.6. The system according to claim 4 , wherein the second material is distinct from each of the first material and the third material.7. The system according to claim 4 , wherein the first material is the same as the third material.8. The system according to claim 4 , wherein the second material comprises an ...

Подробнее
Номер записи: 11
09-01-2020 дата публикации

ELASTOMERIC COMPRESSION SPRING WITH LOAD TUNING FEATURE AND ASSOCIATED METHOD OF TUNING

Номер: US20200011393A1
Автор: Albert Jeremie J., Ludin Douglas R., Muha Nicholas B.
Принадлежит:

An elastomeric compression spring for isolating vibrations between a first part and a second part. The first part is movable in a direction relative to the second part. The elastomeric compression spring comprises a tube elongated along a central axis of the tube. The central axis of the tube is perpendicular to the direction. The tube is configured to compress in the direction. The tube comprises an outer surface comprising an initial contact line configured to initially receive contact from the first part. The tube further comprises at least one load tuning feature in the outer surface, parallel to the central axis, and circumferentially spaced apart from the initial contact line. The at least one load tuning feature creates a localized change in a thickness of the tube and a stiffness of the elastomeric compression spring at the at least one load tuning feature. 1. An elastomeric compression spring for isolating vibrations between a first part and a second part , wherein the first part is movable in a direction relative to the second part , the elastomeric compression spring comprising: the central axis of the tube is perpendicular to the direction;', 'the tube is configured to compress in the direction;', 'the tube comprises an outer surface comprising an initial contact line configured to initially receive contact from the first part;', 'the tube further comprises at least one groove formed in the outer surface, parallel to the central axis, and circumferentially spaced apart from the initial contact line; and', 'the at least one groove creates a localized reduction in a thickness of the tube and a stiffness of the elastomeric compression spring at the at least one groove., 'a tube elongated along a central axis of the tube, wherein2. The elastomeric compression spring according to claim 1 , wherein the tube further comprises two grooves formed in the outer surface of the tube on opposite sides of the initial contact line.3. The elastomeric compression spring ...

Подробнее
Номер записи: 12
03-02-2022 дата публикации

Hybrid Impact Passive Energy Absorber

Номер: US20220034382A1
Автор: Farid Maor
Принадлежит:

A hybrid impact passive energy absorber has a rigid housing with a mounting base. A housing body includes an interior chamber formed around a chamber axis spanning between two ends of the body. A chamber central portion is partially bounded by first and second central chamber walls. A first chamber end portion extends from the body first end and the first central chamber wall, and a second chamber end portion extends from the body second end and the second central chamber wall. A shaft is disposed within the housing chamber along the chamber axis between the housing first and second ends. An internal mass within the chamber central portion slides on the shaft passing through an internal mass central bore. First and second helical springs surround the shaft on either side of the internal mass, abutting both the chamber end and the internal mass. 1100. A hybrid impact passive energy absorber () , comprising:{'b': '110', 'claim-text': a mounting base; and', {'b': 111', '111, 'i': a', 'b, 'claim-text': [{'b': 140', '145', '145, 'i': a', 'b, 'a chamber central portion () partially bounded by a first central chamber wall () and a second chamber wall ();'}, 'a first chamber end portion bounded by the body first end and the first central chamber wall; and', 'a second chamber end portion bounded by the body second end and the second central chamber wall;, 'a body affixed to the mounting base further comprising a first end (), a second end () opposite the first end, a contiguous chamber within the body formed around a chamber axis spanning the first end and the second end, wherein the chamber further comprises], 'a rigid housing () comprising{'b': '170', 'a shaft () comprising a first end and a second end, the shaft disposed at least partially within the housing chamber along the chamber axis between the housing first end and housing second end;'}{'b': '120', 'an internal mass () comprising a central bore configured to receive the shaft therethrough, the internal mass ...

Подробнее
Номер записи: 13
18-01-2018 дата публикации

STOPPER FOR VEHICLE

Номер: US20180015799A1
Автор: SATOU Shunji
Принадлежит: BRIDGESTONE CORPORATION

The present invention relates to a stopper () for vehicle which is disposed between a vehicle body side member () and a wheel side member () to restrict a relative amount of movement of both members (). The stopper includes a cylindrical holding member () attached to one of both members (), and an elastic body () which faces the other of both members (). A folded-back portion () bent outward in the radial direction of the holding member () and folded back is formed in the holding member (). 1. A stopper for vehicle which is disposed between a vehicle body side member and a wheel side member to restrict a relative amount of movement of both members , the stopper for vehicle comprising:a cylindrical holding member of which one end portion along an axial direction is attached to one of both members; andan elastic body which is held by the holding member, protrudes toward the other side along the axial direction from the holding member, and faces the other of both members,wherein a folded-back portion bent outward in a radial direction of the holding member and folded back toward the one side is formed at an end portion on the other side of the holding member.2. The stopper for vehicle according to claim 1 , wherein a drainage hole penetrating the folded-back portion is formed in the folded-back portion.3. The stopper for vehicle according to claim 2 , wherein the drainage hole penetrates the folded-back portion in the axial direction claim 2 , andan inner portion of an inner circumferential surface of the drainage hole located inside in the radial direction and facing outward in the radial direction gradually extends outward in the radial direction from the one side toward the other side.4. The stopper for vehicle according to claim 3 , wherein the drainage hole is formed in an inverted portion folded back toward the one side of the folded-back portion.5. The stopper for vehicle according to claim 2 , wherein at least a part of the drainage hole is located in a portion ...

Подробнее
Номер записи: 14
17-04-2014 дата публикации

Control assembly for controlling the rotation of a turnstile

Номер: US20140102003A1
Автор: Joseph Talpe
Принадлежит: Joseph Talpe

The control assembly comprises a torque-restoring mechanism ( 13 ) with springs ( 20 ), a motion converting transmission with a multiplying gearing ( 56, 57 ) converting a rotation of the turnstile over 120° into a rotation of the rotary shaft entering the hydraulic damper ( 26 ) over 180°. The hydraulic damper ( 26 ) comprises two pistons mounted onto a single piston rod. A cam or crank mechanism converts a rotation of the rotary shaft entering the hydraulic damper over 180° into a reciprocating motion of the two pistons over two half stroke lengths. The first piston damps the rotary movement of the turnstile when moving in one direction whilst the other piston damps this movement when the pistons move in the other direction. The movement of the turnstile is thus damped in both of its rotation directions. The use of such a motion converting transmission in combination with a double-piston mechanism enables to arrange the motion converting mechanism within the hydraulic damper, thus avoiding any loss of hydraulic fluid, and also enables to achieve a gradually increasing damping force to effectively stop the rotation of the turnstile.

Подробнее
Номер записи: 15
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.

Подробнее
Номер записи: 16
21-01-2021 дата публикации

Torsional vibration damper

Номер: US20210018046A1
Автор: Alain Rusch, Laurent Theriot, Martin HÄSSLER, Philippe Kremper, Yannick Strub
Принадлежит: Schaeffler Technologies AG and Co KG

A torsional vibration damper includes an input part for introducing a torque, two intermediate elements, an energy storage element designed as a compression spring that acts on the intermediate elements, an output part for discharging a vibration-damped torque, and an elastic or resilient compensation part provided between the output part and the intermediate elements. The intermediate elements are designed as pendulum rockers and are movement-coupled to the input part. Each of the intermediate elements can move towards and away from the other in a linear motion. The output part is movement-coupled to the intermediate elements and rotatable relative to the intermediate elements. The compensation part is for eliminating play of the intermediate elements relative to the output part in an axial direction.

Подробнее
Номер записи: 17
16-01-2020 дата публикации

Vibration damping device of inverted structure

Номер: US20200018375A1
Автор: Gakuyo Fujimoto, Kentaro Komori, Naoki SOGAWA
Принадлежит: Honda Motor Co Ltd

A vibration damping device of an inverted structure includes a cylinder, a rod capable of protruding and retracting in the cylinder, an outer cylinder coupled to the rod and inserted over the outer periphery of the cylinder, and a bush slidably inserted between the outer cylinder and the cylinder. A gap between the outer cylinder and the cylinder is filled with lubricating oil. The bush contains polytetrafluoroethylene and perfluoro alkoxy alkane. The lubricating oil contains an organic molybdenum additive.

Подробнее
Номер записи: 18
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.

Подробнее
Номер записи: 19
10-02-2022 дата публикации

DEVICE FOR ATTENUATING ENERGY

Номер: US20220042566A1
Автор: Burr Scott
Принадлежит:

These teachings relate to a device that includes a base having an axis that is centered and perpendicular relative to the base and two or more arms each connected to the base at a base hinge The base hinge rotates the two or more arms away from the axis, and one or more expandable bands are connected with distal ends of the two or more arms. The one or more expandable bands absorb energy from rotating of the two or more arms. The device absorbs energy when an external force is applied along the axis of the base. 1. A device , comprising:a. a base having an axis that is centered and perpendicular relative to the base;b. two or more arms each connected to the base at a base hinge;c. one or more arm hinges embedded in each of the two or more arms; and configured to allow the two or more arms to rotate in an outward direction relative to the axis;d. a ring having a position that is parallel and fixed relative to the base and the axis, wherein the ring is connected with distal ends of the two or more arms and configured to allow rotational motion of the two or more arms without moving the position of the ring; ande. one or more expandable bands connected with the one or more arm hinges and configured to absorb energy from folding of the two or more arms,wherein the device is configured to absorb energy when the base and the ring are pushed together along the axis by an external force.2. The device according to claim 1 , wherein the one or more arm hinges are spaced a distance from the base hinge and spaced a distance from the distal ends of the two or more arms.3. The device according to claim 1 , wherein the one or more arm hinges are spaced a first distance from the base hinge and spaced a second distance from the distal ends of the two or more arms claim 1 , and wherein the first distance is larger than the second distance.4. The device according to claim 1 , wherein the one or more arm hinges are spaced a first distance from the base hinge and spaced a second ...

Подробнее
Номер записи: 20
10-02-2022 дата публикации

Vibration mitigation device

Номер: US20220042570A1
Автор: Carl J. Macchietto, Darren E. INGRAM, Richard E. CHRISTENSON
Принадлежит: Valmont Industries Inc

The present invention provides a vibration mitigation device which includes a vertically extending housing and a reciprocating assembly coupled with and fully enclosed inside of the vertically extending housing. In accordance with an exemplary embodiment of the present invention, the vibration mitigation device may utilize a tension spring as the biasing member while operating in a pneumatic process, an eddy current dampening process or a hybrid combination of the two dampening processes. For low amplitude, the eddy current dampening process may provide improved vibration mitigation results and for higher amplitudes, the pneumatic process may provide improved vibration mitigation results. Other exemplary embodiments include a vibration damping element that utilizes a compression spring as a biasing member for mitigating vibrations. Further exemplary embodiments provide a vibration damping element that utilizes a compression spring and a tension spring as biasing members for mitigating vibrations.

Подробнее
Номер записи: 21
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.

Подробнее
Номер записи: 22
24-01-2019 дата публикации

A ROTARY DAMPER WITH SELF-REPAIRING AGAINST ATTENUATION

Номер: US20190024747A1
Автор: Chen Wencheng, Wang Xiangji
Принадлежит:

A rotary damper with self-repairing against attenuation, comprising a housing, a rotating shaft, and blades. The blades connect with the rotating shaft and comprise a driving structure. When the rotating shaft rotates towards a direction of forming damping, the driving force is applied on the drive structure by the damping oil. The blade is driven by the drive structure and elastically deforms the blades and extends outwardly to tightly attach to an inner wall of the housing. When the damping is formed, a downward pulling force is applied on the blades by the damping oil, and the blade drives the rotating shaft downward to tightly attach the bottom of the housing to generate a self-locking force. Furthermore, the damping oil flowing through the rotating shaft and the bottom of the housing can be reduced, to achieve a more stable damping effect. 1. A rotary damper , comprising a housing , a rotating shaft , and a plurality of blades; wherein the blades are connected with the rotating shaft; the blades each comprises a driving structure; when the rotating shaft rotates towards a direction of damping formation , the driving structure of the blades increases a running resistance so as to increase a force applied to the blades and to cause the blades to elastically deform and extend outwardly to tightly attach to the inner wall of the housing.2. The rotary damper according to claim 1 , wherein the driving structure is a baffle protruding from the surface of the blade capable of pushing damping oil to form a force which causes the blade to elastic deform.3. The rotary damper according to claim 2 , wherein the baffle is located on at least one edge of an outer edge claim 2 , a lower edge claim 2 , and an upper edge of the blades.4. The rotary damper according to claim 1 , wherein the blades surround the rotating shaft to form an inclined helical structure in the axial direction.5. The rotary damper according to claim 4 , wherein when the rotating shaft rotates towards the ...

Подробнее
Номер записи: 23
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', ' ...

Подробнее
Номер записи: 24
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 ...

Подробнее
Номер записи: 25
28-01-2021 дата публикации

Torsional vibration, clutch disk and clutch

Номер: US20210025459A1
Автор: Ahnert Gerd
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A torsional vibration damper for a clutch disk within a drive train of a motor vehicle includes an input part arranged around an axis of rotation (d), a spring device with at least three spring elements, an output part, and torque-transmitting intermediate elements. The output part can be rotated relative to the input part about the axis of rotation (d) to a limited extent against the spring device. The torque-transmitting intermediate elements are arranged between the input part and the output part for forcible radial displacement by means of cam mechanisms when the input part rotates relative to the output part. The spring device is arranged between the torque-transmitting intermediate elements, and a number of intermediate elements corresponds to a number of spring elements. 19.-.(canceled)10. A torsional vibration damper for a clutch disk within a drive train of a motor vehicle , comprising:an input part arranged around an axis of rotation (d);a spring device comprising at least three spring elements;an output part which can be rotated relative to the input part about the axis of rotation (d) to a limited extent against the spring device;torque-transmitting intermediate elements arranged between the input part and the output part for forcible radial displacement by means of cam mechanisms when the input part rotates relative to the output part, wherein:the spring device is arranged between the torque-transmitting intermediate elements; anda number of intermediate elements corresponds to a number of spring elements.11. The torsional vibration damper of claim 10 , wherein:each of the at least three spring elements has an effective direction; andthe effective direction of each of the at least three spring elements spans a non-zero first angle with the effective direction of any other of the at least three spring elements.12. The torsional vibration damper of claim 10 , wherein:each intermediate element comprises a relative movement direction in which it can be ...

Подробнее
Номер записи: 26
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.

Подробнее
Номер записи: 27
28-01-2021 дата публикации

LIQUID-MECHANICAL ISOLATOR

Номер: US20210025473A1
Автор: Warden Harry Kendall, Weathers Jeffrey Wayne
Принадлежит: The Boeing Company

Shock and vibration isolators and their use to isolate loads from vibration and shock, where the isolators include a fluid spring assembly and a mechanical spring assembly, where the fluid spring assembly and the mechanical spring assembly are arranged in series. The mechanical spring assembly includes a first spring and a second spring arranged so that compression of the mechanical spring assembly simultaneously directly compresses the first spring and indirectly compresses the second spring via an intermediate actuator, such that the first and second spring are compressed in parallel. 1. A shock and vibration isolator , comprising:a fluid spring assembly; anda mechanical spring assembly;wherein the fluid spring assembly and mechanical spring assembly are arranged in series; andthe mechanical spring assembly includes a first spring and a second spring arranged so that a compressive force applied to the mechanical spring assembly simultaneously directly compresses the first spring and indirectly compresses the second spring via an intermediate actuator, such that the first and second spring are compressed in parallel.2. The isolator of claim 1 , wherein a spring constant of the first spring and a spring constant of the second spring are substantially equal.3. The isolator of claim 1 , wherein each of the first spring and the second spring of the mechanical spring assembly are compression coil springs having a longitudinal axis claim 1 , and the first spring and second spring are arranged so that the longitudinal axes of the first spring and the second spring are coincident.4. The isolator of claim 1 , wherein the fluid spring assembly includes a fluid-filled bore and a piston slidably mounted within the bore claim 1 , such that the piston divides the bore into a first compartment and a second compartment such that a compression of the fluid spring assembly moves the piston within the bore and compresses the fluid in the second compartment of the bore.5. The isolator ...

Подробнее
Номер записи: 28
04-02-2021 дата публикации

VIBRATION DAMPER COMPRISING A LEAKAGE INDICATOR, LEAKAGE INDICATOR, METHOD FOR INDICATING A LEAK IN A VIBRATION DAMPER AND COLOUR CHANGE INDICATOR FOR USE AS LEAKAGE INDICATOR

Номер: US20210033162A1
Автор: BAJRAMOVIC Haris, NORUSCHAT Tim
Принадлежит:

A vibration damper for vehicles includes a damper tube which is at least partially filled with damper medium and which has a longitudinal axis along which a piston rod is movable back and forth. A working piston is movable jointly with the piston rod, by means of which working piston the interior space of the damper tube is divided into a piston-rod-side working space and a piston-rod-remote working space. The vibration damper has a leakage indicator for the damper medium. 111.-. (canceled)12. A vibration damper for vehicles , comprising:a damper tube comprising an interior space which is at least partially filled with damper medium and which has a longitudinal axis and an outer wall,a piston rod movably disposed in the damper tube,a working piston movable jointly with the piston rod, the working piston configured to divide the interior space of the damper tube into a piston-rod-side working space and a piston-rod-remote working space, anda leakage indicator configured to detect leakage of damper medium from the damper, wherein the leakage indicator comprises at least one indicator reaction composition for reaction with the damper medium upon contact therewith, and wherein the leakage indicator is at least partially covered by at least one protective element.13. The vibration damper of wherein the leakage indicator is arranged in an at least partially radially encircling manner on the damper tube.14. The vibration damper of wherein the leakage indicator has at least one distributing element configured to at least partially distribute the damper medium at least partially in a circumferential direction of the damper tube upon contact of the damper medium with the leakage indicator.15. The vibration damper of wherein the leakage indicator comprises at least one color change composition.16. A method for indicating a leakage of a vibration damper claim 12 , the damper comprising a damper tube comprising an interior space which is at least partially filled with damper ...

Подробнее
Номер записи: 29
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 ...

Подробнее
Номер записи: 30
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 ...

Подробнее
Номер записи: 31
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 ...

Подробнее
Номер записи: 32
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.

Подробнее
Номер записи: 33
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 ...

Подробнее
Номер записи: 34
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 ...

Подробнее
Номер записи: 35
24-02-2022 дата публикации

SILICONE FREE ROTATIONAL SPRING HINGE DAMPENER

Номер: US20220056979A1
Автор: Bivens Steve, Lindsey Daniel, Oomen Craig Martin, Smith Samuel
Принадлежит:

The present disclosure provides a rotational spring dampener that has a compression limiter, a first disk, and a second disk. The first disk is disposed at a first end of the compression limiter and the second disk is disposed at a second end of the compression limiter, where the second end is opposite the first end. The rotational spring dampener also has a tensile member. The tensile member is connected to the first disk and the second disk. The tensile member is composed of a block copolymer 2. The rotational spring dampener of claim 1 , wherein the block copolymer is a modified block copolymer that is a radiation crosslinked block copolymer.3. The rotational spring dampener of claim 1 , wherein the block copolymer is a modified block copolymer that is a radiation crosslinked ether/ester block copolymer having hard blocks comprising polyester and soft blocks comprising polyether.4. The rotational spring dampener of claim 1 , wherein the block copolymer is a modified block copolymer resin that is a radiation crosslinked ether/ester block copolymer resin claim 1 ,wherein the ether/ester block copolymer resin includes ether/ester block copolymer and additional neat hard-block polymer.5. The rotational spring dampener of claim 1 , wherein the compression limiter comprises a hard polymeric material that is selected from the group consisting of polyvinylchloride (PVC) claim 1 , high-density polyethylene (HDPE) claim 1 , fluoroplastics claim 1 , polyamides claim 1 , polyetheleneterthalate (PET) claim 1 , polybutelene terethalate (PBT) claim 1 , and polyoxymethylene (POM).6. The rotational spring dampener of claim 1 , wherein the first disk and the second disk each comprise a hard polymeric material that is selected from the group consisting of polyvinylchloride (PVC) claim 1 , high-density polyethylene (HDPE) claim 1 , fluoroplastics claim 1 , polyamides claim 1 , polyetheleneterthalate (PET) claim 1 , polybutelene terethalate (PBT) claim 1 , and polyoxymethylene (POM). ...

Подробнее
Номер записи: 36
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 ...

Подробнее
Номер записи: 37
18-02-2016 дата публикации

VEHICLE DAMPER DEVICE

Номер: US20160047434A1
Автор: KIMURA Hiroaki, Sugiyama Masataka
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A vehicle damper device including: a first plate coupled to a crankshaft of the engine; a second plate coupled via an elastic body to the first plate; an inertia body coupled to the second plate; a support member coupled to the crankshaft along with the first plate; a bearing inserted between the support member and the inertia body; a third plate coupled to the inertia body; a fourth plate coupled to an input shaft of the power transmission device; and a torque limiter mechanism disposed between the third plate and the fourth plate, the torque limiter mechanism being disposed at a position on a radially inner side than the elastic body and not axially overlapping with the elastic body, the elastic body being a coil spring disposed in an outer circumferential portion of the first or second plate, and the elastic body being an arc-shaped arc spring. 1. A vehicle damper device disposed on a power transmission path between an engine and a power transmission device , comprising:a first plate coupled to a crankshaft of the engine;a second plate coupled via an elastic body to the first plate;an inertia body coupled to the second plate;a support member coupled to the crankshaft along with the first plate;a bearing inserted between the support member and the inertia body;a third plate coupled to the inertia body;a fourth plate coupled to an input shaft of the power transmission device; anda torque limiter mechanism disposed between the third plate and the fourth plate,the torque limiter mechanism being disposed at a position on a radially inner side than the elastic body and not axially overlapping with the elastic body,the elastic body being a coil spring disposed in an outer circumferential portion of the first or second plate, andthe elastic body being an arc-shaped arc spring.2. (canceled)3. The vehicle damper device of claim 1 , whereinan electric motor is coupled in a power transmittable manner to the input shaft, and whereinthe torque limiter mechanism is disposed at ...

Подробнее
Номер записи: 38
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.

Подробнее
Номер записи: 39
15-02-2018 дата публикации

RADIAL VIBRATION DAMPERS HAVING A TUNING RATIO AND A TUNING ANGLE

Номер: US20180045271A1
Автор: Manzoor Suhale
Принадлежит:

Radial vibration dampers have an inertia member defining an annular channel having (i) a radially facing, open face; (ii) a bottom surface; and (iii) interior, opposing surfaces. The interior, opposing surfaces are each angled outward away from a central transverse plane through the inertia member at an angle in a range from zero degrees to at most 45 degrees. A spring damper member is seated in the annular channel to a selected depth that defines a damper gap between a radial inner surface of the spring damper member and the bottom surface of the annular channel and defines a clearance gap between the shaft and the inertia member. A tuning ratio of the clearance gap to the selected depth is in a range of about 1:1.5 to about 1:0.5. 1. A radial vibration damper comprising:an inertia member defining an annular channel having a radially facing, open face, a bottom surface, and interior, opposing surfaces, wherein the interior, opposing surfaces are each angled generally outward away from a central transverse plane through the inertia member at an angle in a range from zero degrees to at most 45 degrees; anda spring damper member having a channel portion seated in the annular channel to a selected depth that defines a damper gap between a radial inner surface of the spring damper member and the bottom surface of the annular channel and a shaft-engaging portion protruding from the radially facing, open face a sufficient distance that, once the shaft-engaging portion is compressed against a shaft, the spring damper member defines a clearance gap between the shaft and the inertia member;wherein the channel portion of the spring damper member has opposing angled axial surfaces that mate with the interior, opposing surfaces of the annular channel;wherein a tuning ratio of the clearance gap to the selected depth is in a range of about 1:1.5 to about 1:0.5, and finite element analysis modeling demonstrates that the radial vibration damper has a first mode of vibration that is ...

Подробнее
Номер записи: 40
15-02-2018 дата публикации

METHOD FOR DYNAMICALLY BALANCING AN ARTICLE AND DYNAMICALLY BALANCED ARTICLE

Номер: US20180045272A1
Автор: Giangrande Holly A., Gilmore Curt D.
Принадлежит:

A method for dynamically balancing an unbalanced article about a rotary axis. The method includes determining a mass and a position of a corrective weight, the mass and position of the corrective weight being configured to at least partly correct an imbalance in the unbalanced article that is generated when the unbalanced article is rotated about the rotary axis; and spraying an atomized liquid or molten material toward a surface of the unbalanced article to form the corrective weight. 1. A method for dynamically balancing an unbalanced article about a rotary axis , the method comprising:determining a mass and a position of a corrective weight, the mass and position of the corrective weight being configured to at least partly correct an imbalance in the unbalanced article that is generated when the unbalanced article is rotated about the rotary axis; andspraying an atomized liquid or molten material toward a surface of the unbalanced article to form the corrective weight that is fixedly coupled to the unbalanced article.2. The method of claim 1 , wherein the unbalanced article is rotating about the rotary axis as the atomized liquid or molten material is sprayed toward the surface of the unbalanced article.3. The method of claim 1 , wherein the atomized liquid or molten material comprises a plasma.4. The method of claim 1 , wherein the atomized liquid or molten material at least partly solidifies before impacting the unbalanced article.5. The method of claim 4 , wherein the sprayed atomized liquid or molten material forms discrete particles that bond to one another via mechanical hooking.6. A rotationally balanced article comprising:an unbalanced article having a rotational imbalance when the unbalanced article is rotated about a predefined rotary axis; anda balance weight that is mechanically adhered to the unbalanced article, the balance weight having a mass and being positioned on the unbalanced article at a location that at least partly attenuates the rotational ...

Подробнее
Номер записи: 41
03-03-2022 дата публикации

LIGHT-WEIGHT BODY MOUNT ASSEMBLY

Номер: US20220063732A1
Автор: GASPAR Zoren E.
Принадлежит: The Pullman Company

A vehicle body mount assembly includes an inner metal sleeve, a polymer mounting bracket with a damper opening oriented coaxially with the inner metal sleeve, an elastomeric damper disposed within the damper opening between the inner metal sleeve and the polymer mounting bracket, at least one fastening element embedded in and extending from the polymer mounting bracket, and a ferrule disposed at least partially within the inner metal sleeve. A polymer outer sleeve can be included and disposed between elastomeric damper and the polymer mounting bracket. Also, the at least one fastening element can be a stud bolt with a head embedded in the polymer mounting bracket, a nut embedded in the polymer mounting bracket, or a metal sleeve configured for a bolt to extend therethrough embedded in the polymer mounting bracket.

Подробнее
Номер записи: 42
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 ...

Подробнее
Номер записи: 43
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.

Подробнее
Номер записи: 44
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 ...

Подробнее
Номер записи: 45
14-02-2019 дата публикации

DUAL RACK AND PINION ROTATIONAL INERTER SYSTEM AND METHOD FOR DAMPING MOVEMENT OF A FLIGHT CONTROL SURFACE OF AN AIRCRAFT

Номер: US20190048961A1
Автор: Fox Michael T., Howell Eric A., Roach Jeffrey M.
Принадлежит:

There is provided a dual rack and pinion rotational inerter system for damping movement of a flight control surface of an aircraft having a support structure. The system has a flexible holding structure disposed between the flight control surface and the support structure. The system has a dual rack and pinion assembly held by the flexible holding structure. The system has a first terminal and a second terminal, coupled to the dual rack and pinion assembly. The first terminal is coupled to the flight control surface. The system has a pair of inertia wheels coupled to the flexible holding structure. The system has an axle element inserted through the inertia wheels, the flexible holding structure, and the dual rack and pinion assembly, such that when the flight control surface rotates, the dual rack and pinion rotational inerter system translates and rotates, and movement of the flight control surface is dampened. 1. A dual rack and pinion rotational inerter system for damping movement of a flight control surface of an aircraft having a support structure , the dual rack and pinion rotational inerter system comprising:a flexible holding structure disposed between the flight control surface and the support structure;a dual rack and pinion assembly held by the flexible holding structure;a first terminal and a second terminal, each coupled to the dual rack and pinion assembly, the first terminal further coupled to the flight control surface;a pair of inertia wheels coupled to the flexible holding structure; andan axle element inserted through the pair of inertia wheels, the flexible holding structure, and the dual rack and pinion assembly, such that when the flight control surface rotates, the dual rack and pinion rotational inerter system translates and rotates, such that movement of the flight control surface is dampened.2. The system of claim 1 , further comprising a plurality of rod bearings inserted into interior corners of the flexible holding structure.3. The ...

Подробнее
Номер записи: 46
14-02-2019 дата публикации

PENDULUM VIBRATION DAMPER

Номер: US20190048971A1
Автор: Amano Hiroyuki, HORITA Shuhei, NISHIDA Hideyuki, Suzuki Yuji
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A pendulum vibration damper in which a retainer is prevented from being moved or tilted in an axial direction. In the pendulum vibration damper, a restriction member formed on any one of the retainer and an inner face of the casing to be brought into contact to the other one of the retainer and the inner face of the casing when the retainer is moved or tilted in an axial direction of the rotary disc. A clearance between the casing and the rolling mass in the axial direction is shorter than a thickness of the retainer in the axial direction. 1. A pendulum vibration damper comprising:a rotary disc that is rotated by a torque;a plurality of bores formed in the rotary disc in a circular manner;a plurality of rolling masses held respectively in the bores while being allowed to be oscillated by pulsation of the torque applied to the rotary disc to suppress vibrations;a retainer that retains the rolling masses in the bores while maintaining intervals between the masses, and that is allowed to be rotated relatively to the rotary disc by an oscillating motion of the mass;a casing that covers the retainer, the rolling masses, and the rotary disc; anda restriction member formed on any one of the retainer and an inner face of the casing to be brought into contact to the other one of the retainer and the inner face of the casing when the retainer is moved or tilted in an axial direction of the rotary disc,wherein a clearance between the casing and the rolling mass in the axial direction is shorter than a thickness of the retainer in the axial direction.2. The pendulum vibration damper as claimed in claim 1 , wherein the restriction member is formed on the retainer while protruding toward the inner face of the casing.3. The pendulum vibration damper as claimed in claim 1 ,wherein the retainer comprises a ring portion formed radially inner side of the bores, and a plurality of holder portions individually formed of a pair of stopper portions protruding radially outwardly from the ...

Подробнее
Номер записи: 47
14-02-2019 дата публикации

CENTRIFUGAL PENDULUM DAMPER

Номер: US20190048972A1
Автор: Amano Hiroyuki, Ishibashi Masayuki, IWAGAKI Tomo, YONGJOO Ryoo
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A centrifugal pendulum damper for effectively suppressing torsional vibrations resulting from torque pulse. The centrifugal pendulum damper comprises: a rotary member rotated by a torque; an inertial member that rotates relatively to the rotary member; a chamber formed on the inertial member; and a rolling member held partially in the chamber while being allowed to oscillate therein, and held partially by the rotary member while being allowed to move radially. A raceway surface on which the rolling member rolls is formed in the chamber in such a manner that a curvature radius of an orbit of a gravity center of the rolling member oscillating along the raceway surface is increased with an increase in an oscillation angle of the rolling member. 1. A centrifugal pendulum damper comprising:a rotary member to which a torque of a predetermined prime mover is applied;an inertial member that is allowed to rotate relatively to the rotary member;a chamber that is formed on the inertial member; anda rolling member that is held partially in the chamber while being allowed to roll along a raceway surface formed on an inner circumferential face of the chamber, and that is held partially by the rotary member while being allowed to move in a radial direction of the rotary member,wherein the torque applied to the rotary member is transmitted to the inertial member through the rolling member to suppress torsional vibrations of the rotary member,the raceway surface is formed such that a center of curvature of the raceway surface is situated radially outside of a rotational center of the inertial member, andthe raceway surface is contoured such that a curvature radius of an orbit of a gravity center of the rolling member oscillating along the raceway surface becomes shortest when the gravity center is situated on a first line passing through the rotational center in a direction perpendicular to a tangent line to the orbit, and such that the curvature radius becomes longer with an ...

Подробнее
Номер записи: 48
25-02-2021 дата публикации

HYDRAULIC DAMPER

Номер: US20210054902A1
Автор: NAKANO Gota
Принадлежит: Showa Corporation

A hydraulic damper includes: a cylinder containing liquid; a piston part configured to be connected to a rod moving in an axial direction and configured to move inside the cylinder; a channel forming part including a first channel in which the liquid flows along with movement of the piston part in one direction, and a second channel in which the liquid flows parallel to the first channel along with the movement of the piston part in the one direction; a valve part configured to control flow of the liquid in the first channel and the second channel; and a single advancing/retracting part configured to advance and retract the valve part to and from the first channel and the second channel. 1. A hydraulic damper comprising:a cylinder containing liquid;a piston part configured to be connected to a rod moving in an axial direction and configured to move inside the cylinder;a channel forming part including a first channel in which the liquid flows along with movement of the piston part in one direction, and a second channel in which the liquid flows parallel to the first channel along with the movement of the piston part in the one direction;a valve part configured to control flow of the liquid in the first channel and the second channel; anda single advancing/retracting part configured to advance and retract the valve part to and from the first channel and the second channel.2. The hydraulic damper according to claim 1 , whereinthe valve part includes a first channel facing portion and a second channel facing portion, the first channel facing portion being of a planar shape and facing the first channel, the second channel facing portion being of a planar shape and facing the second channel.3. The hydraulic damper according to claim 2 , whereinthe valve part includes a planar member integrally formed with the first channel facing portion and the second channel facing portion.4. The hydraulic damper according to claim 3 , whereinthe planar member at least includes an ...

Подробнее
Номер записи: 49
25-02-2021 дата публикации

High speed flywheel

Номер: US20210054903A1
Автор: Brian E. Spencer, Zachary B. Spencer
Принадлежит: Spencer Composites Corp

This invention relates to a flywheel and method of manufacture thereof wherein the flywheel is capable of operation at very high rotational speed without precise balancing.

Подробнее
Номер записи: 50
13-02-2020 дата публикации

Drive assembly including raw hub extension

Номер: US20200049226A1
Автор: Angel Josue Lopez, Ing. Juan Pablo Cazares
Принадлежит: Schaeffler Technologies AG and Co KG

A drive assembly for a vehicle drive train includes a base assembly including a base hub configured for non-rotatably connecting to an outer circumferential surface of a transmission input shaft. The base assembly includes a torsional damper fixed to the base hub. The torsional damper includes an input section and an output section drivingly connected by springs. The springs allow relative rotation between the input section and the output section. The output section of the torsional damper is non-rotatably fixed to the base hub. The drive assembly also includes a raw hub extension configured for non-rotatably connecting to an engine crankshaft. The raw hub extension is non-rotatably fixed to the input part of the torsional damper at an engine side of the torsional damper. The torsional damper allows relative rotation between the raw hub extension and the base hub.

Подробнее
Номер записи: 51
13-02-2020 дата публикации

DRIVE ASSEMBLY INCLUDING HUB ASSEMBLY EXTENSION

Номер: US20200049227A1
Автор: Cazares Ing. Juan Pablo, Lopez Angel Josue
Принадлежит:

A drive assembly for a vehicle drive train includes a base assembly including a base hub configured for non-rotatably connecting to an outer circumferential surface of a transmission input shaft. The base assembly includes a torsional damper fixed to the base hub. The torsional damper includes an input section and an output section drivingly connected by springs. The springs allow relative rotation between the input section and the output section. The output section of the torsional damper is non-rotatably fixed to the base hub. A hub assembly extension is configured for non-rotatably connecting to an engine crankshaft. The hub assembly extension is non-rotatably fixed to the input part of the torsional damper at an engine side of the torsional damper. The torsional damper allows relative rotation between the hub assembly extension and the base hub. 1. A drive assembly for a vehicle drive train comprising:a base assembly including a base hub configured for non-rotatably connecting to an outer circumferential surface of a transmission input shaft, the base assembly including a torsional damper fixed to the base hub, the torsional damper including an input section and an output section drivingly connected by springs, the springs allowing relative rotation between the input section and the output section, the output section of the torsional damper being non-rotatably fixed to the base hub; anda hub assembly extension configured for non-rotatably connecting to an engine crankshaft, the hub assembly extension being non-rotatably fixed to the input part of the torsional damper at an engine side of the torsional damper, the torsional damper allowing relative rotation between the hub assembly extension and the base hub.2. The drive assembly as recited in wherein the hub assembly extension includes an extension hub configured for non-rotatably connecting to an outer circumferential surface of the engine crankshaft.3. The drive assembly as recited in wherein the hub assembly ...

Подробнее
Номер записи: 52
10-03-2022 дата публикации

Centrifugal pendulum device

Номер: US20220074465A1
Автор: Pascal Strasser
Принадлежит: Schaeffler Technologies AG and Co KG

A centrifugal pendulum device having at least one flange and at least one centrifugal weight disposed displaceably on the flange. The centrifugal weight is guided displaceably on the flange by roller elements; the flange has openings with guide tracks situated radially outwardly, and the centrifugal weight has two side elements with a guide rail arranged therebetween and has guide tracks; the guide rail is inserted into an opening in the flange; the weight guide tracks are arranged radially inside the flange guide track such that they oppose each other in the radial direction at the same axial height, and roller elements are arranged radially therebetween; the flange having first and second openings with respective first and second guide tracks; the at least one centrifugal weight being inserted into one of the first or second openings depending on the choice of rotary vibration to be damped.

Подробнее
Номер записи: 53
03-03-2016 дата публикации

Adaptable damper

Номер: US20160061281A1
Автор: Ying-Che Lee
Принадлежит: Chi Hua Fitness Co Ltd

An adjustable damper includes a tube body, a driving rod to be displaced in the tube body and to engage a screw sleeve to drive a screw rod and further a fixed seat for rotation. The fixed seat has a plurality of permanent magnets surrounding for circular rotation and an operation element is driven by a rotating element for repeated linear displacement; a magnetic surface is further arranged on an inner periphery of an annular element of the operation element and an annular gap is arranged between the magnetic surface and the permanent magnets; therefore the displacing annular element is able to adjust a damping force of the driving rod by adjusting an overlapped area of the permanent magnets and a magnetic surface, and further adjust an eddy load formed thereby. The damper overcomes the problem of oil leakage and ensures the durability and quality with its adjustability.

Подробнее
Номер записи: 54
20-02-2020 дата публикации

DAMPING DEVICE FOR A WASHING MACHINE, AND WASHING MACHINE

Номер: US20200056316A1
Автор: GAO Shengcheng, Lv Peishi, TIAN Yun, Yang Lin, ZHANG Gangjin, ZHOU Chunxia
Принадлежит: QINGDAO HAIER WASHING MACHINE CO., LTD.

A damping device for a washing machine and a washing machine are provided. The damping device for a washing machine comprises an upper boom, a damping spring mechanism and a lower boom, wherein an upper end of the upper boom is installed on a cabinet of the washing machine, a lower end of the lower boom is installed on an outer tub of the washing machine, the damping spring mechanism is installed between the upper boom and the lower boom, and the upper boom and/or the lower boom are/is elastically stretched under the drive of the damping spring mechanism. 1. A damping device for a washing machine , comprising an upper boom , a damping spring element and a lower boom , wherein an upper end of the upper boom is installed on a cabinet of the washing machine , a lower end of the lower boom is installed on an outer tub of the washing machine , the damping spring element is installed between the upper boom and the lower boom , and at least one of the upper boom and the lower boom is elastically stretched under an action of the damping spring element.2. The damping device of a washing machine of claim 1 , wherein the upper boom is shorter than or equal to the lower boom claim 1 , the damping spring element is connected with the lower boom; and the lower boom is driven to be elastically stretched by the damping spring element.3. The damping device for a washing machine of claim 1 , wherein a lower end of the upper boom is connected with a support seat claim 1 , the damping spring element is installed on the support seat claim 1 , an upper end of the lower boom is connected with the damping spring element claim 1 , and the lower boom is elastically stretched under the drive of the damping spring element.4. The damping device for a washing machine of claim 3 , wherein the upper boom comprises multiple upper branch booms claim 3 , upper ends of the upper branch booms are respectively installed on the cabinet of the washing machine or are converged together and installed on the ...

Подробнее
Номер записи: 55
04-03-2021 дата публикации

Damper

Номер: US20210062564A1
Автор: Kouichi Kato
Принадлежит: PIOLAX INC

A damper includes a cylinder, a rod including a first engaging portion at a tip end thereof, and a piston formed of an elastic resin material. The piston includes a convex portion provided so as to protrude at a base end portion located on a rod base end side and always in pressure contact with an inner circumference of the cylinder. During damper braking, the first engaging portion of the rod abuts against the other end portion of the piston, and an axial compression force acts on the piston between the first engaging portion and the convex portion in pressure contact with the inner circumference of the cylinder.

Подробнее
Номер записи: 56
17-03-2022 дата публикации

GAS SPRING SYSTEM FOR A HEIGHT ADJUSTABLE TABLE, HEIGHT ADJUSTABLE TABLE AND METHOD FOR OPERATING THE GAS SPRING SYSTEM

Номер: US20220079332A1
Автор: KÖDER Michael, SCHENKE Arne, STIEFELMAIER Philipp
Принадлежит: Kesseböhmer Holding KG

A gas spring system () for a height adjustable table () comprises a gas spring () having a gas spring cylinder () with a gas compartment () provided therein, a gas spring piston () arranged therein and a gas spring piston rod () joined thereto. The gas spring system () further comprises a gas interface (), connected to the gas compartment (), which at least inserts gas from outside into the gas spring system (), a transfer cylinder () having a transfer piston (), a first transfer chamber () and a second transfer chamber () separated by the transfer piston (), and a hydraulic pump (). The gas comportment () is connected to the first transfer chamber () and the hydraulic pump () is connected to the second transfer chamber (). The hydraulic pump () conveys hydraulic oil and the transfer piston () is moved in direction towards the first transfer chamber () by the hydraulic oil conveyed by the hydraulic pump () in order to increase a pressure in the first transfer chamber () and in the gas comportment (). 131. Gas spring system () for a height adjustable table () comprising{'b': '4', 'claim-text': [{'b': 6', '9, 'a gas spring cylinder () with a gas compartment () provided therein,'}, {'b': 7', '9, 'a gas spring piston () arranged in the gas compartment (), and'}, {'b': 8', '7, 'a gas spring piston rod () joined with the gas spring piston (),'}], 'a gas spring () having'}characterized in that{'b': '3', 'the gas spring system () further comprises{'b': 10', '9', '10', '3', '3, 'a gas interface () connected to the gas compartment (), wherein the gas interface () is at least configured to insert gas from outside of the gas spring system () into the gas spring system (),'}{'b': 12', '13', '14', '15', '14', '15', '13, 'a transfer cylinder () having an transfer piston (), a first transfer chamber, () and a second transfer chamber (), wherein the first transfer chamber () and the second transfer chamber () are separated by the transfer piston (), and'}{'b': '16', 'a hydraulic ...

Подробнее
Номер записи: 57
28-02-2019 дата публикации

Arrangements and methods for damping oscillations in structures

Номер: US20190063063A1
Автор: Jonathan Mechineau
Принадлежит: GE Renewable Technologies Wind BV

Damping arrangements for counteracting oscillations of a structure are disclosed. The damping arrangement comprises a first tuned mass damper having a first mass configured to perform a first reciprocating movement along a first displacement axis in response to oscillations of the structure, and a second tuned mass damper having a second mass configured to perform a second reciprocating movement along a second displacement axis in response to oscillations of the structure. The second mass is arranged vertically separated from the first mass, and the first and second displacement axes are arranged at an angle with respect to each other. Methods for damping oscillations in a structure are also disclosed.

Подробнее
Номер записи: 58
28-02-2019 дата публикации

Vibration damper for vehicles, a piston rod and a method for fixing a working piston on a piston rod of a vibration damper

Номер: US20190063539A1
Автор: Daniel Pitsch, Martin Flick
Принадлежит: Thyssenkrupp AG, THYSSENKRUPP BILSTEIN GMBH

A vibration damper may include a damper tube filled at least partially with damping liquid. A piston rod is movable to and fro in the damper tube. A working piston is movable with the piston rod by way of which working piston an interior space of the damper tube is divided into two spaces. The vibration damper may have a wedge element and a bracing element, and the piston rod may have a wedge element recess for partially receiving the wedge element. The wedge element may be arranged in the at least one wedge element recess in a braced state, and the at least one bracing element may be connected to the working piston such that the bracing element braces the working piston with respect to the piston rod via the wedge element arranged in the element recess.

Подробнее
Номер записи: 59
28-02-2019 дата публикации

VIBRATION DAMPER FOR VEHICLES, A PISTON ROD, A PISTON ROD ATTACHMENT AND A METHOD FOR FIXING AN ATTACHMENT ELEMENT ON A PISTON ROD OF A VIBRATION DAMPER, IN PARTICULAR FOR VEHICLES

Номер: US20190063540A1
Автор: Flick Martin, Pitsch Daniel
Принадлежит:

A vibration damper may comprise a damper tube filled at least partially with damping liquid. A piston rod is movable to and fro in the damper tube, and a working piston is movable with the piston rod. The working piston may divide an interior space of the damper tube into a piston rod-side working space and a working space distal the piston rod. A piston rod attachment may include an attachment element, a bracing element, and a wedge element. On a side that faces away from the working piston, the piston rod may have a wedge element cut-out for partially receiving the wedge element in a braced state. The attachment element may be connected to the bracing element such that the attachment element braces the bracing element with respect to the piston rod via the wedge element arranged in the wedge element cut-out. 1. A vibration damper comprising:a damper tube filled at least partially with damping liquid, wherein a piston rod is movable to and fro in the damper tube, wherein a working piston is movable with the piston rod, by way of which working piston an interior space of the damper tube is divided into a piston rod-side working space and a working space distal the piston rod; anda piston rod attachment comprising an attachment element, a bracing element, and a wedge element, wherein a side of the piston rod that faces away from the working piston includes a wedge element cut-out for partially receiving the wedge element, wherein the attachment element is connected to the bracing element such that the attachment element braces the bracing element with respect to the piston rod via the wedge element that is disposed in the wedge element cut-out in a braced state.2. The vibration damper of wherein the piston rod attachment fixes the attachment element on the piston rod at least axially in a longitudinal direction of the piston rod.3. The vibration damper of wherein the wedge element cut-out configures a fit in the braced state with the wedge element.4. The vibration ...

Подробнее
Номер записи: 60
28-02-2019 дата публикации

DAMPER APPARATUS

Номер: US20190063548A1
Автор: Ito Kazuyoshi, ITOU Kazuhiro, WAJIMA Masaki
Принадлежит: AISIN AW CO., LTD.

A damper apparatus includes: an input element; an output element; a first torque transfer path including an intermediate element, a first elastic body, and a second elastic body configured to transfer the torque between the intermediate and the output element; and a second torque transfer path including a third elastic body configured to transfer the torque between the input element and the output element. The intermediate element includes a first plate member including a torque transfer portion arranged so as to extend in a radial direction of the damper apparatus between the first and second elastic bodies and configured to support at least ends of the first and second elastic bodies from a radially outer side, and a second plate member coupled to a mass and including a coupling portion arranged between the first and second elastic bodies and fitted to the torque transfer portion of the first plate member. 114-. (canceled)15. A damper apparatus , comprising:an input element to which power from an engine is transferred;an output element;a first torque transfer path including an intermediate element, a first elastic body configured to transfer a torque between the input element and the intermediate element, and a second elastic body configured to transfer the torque between the intermediate element and the output element; anda second torque transfer path including a third elastic body configured to transfer the torque between the input element and the output element and provided in parallel to the first torque transfer path, wherein a first plate member including a torque transfer portion arranged so as to extend in a radial direction of the damper apparatus between the first and second elastic bodies and configured to support ends of the first and second elastic bodies from a radially outer side; and', 'a second plate member coupled to a mass and including a coupling portion arranged between the first and second elastic bodies and fitted to the torque transfer ...

Подробнее
Номер записи: 61
27-02-2020 дата публикации

Damper

Номер: US20200063826A1
Автор: Makoto Muranaka
Принадлежит: NIFCO INC

This damper comprises: a housing accommodating a damping medium; and a rotor rotatable relative to the housing, inside the housing. A unidirectional clutch which stipulates rotation in one direction and a rotating shaft can be connected to each other coaxially. The unidirectional clutch, when supporting the rotating shaft, constitutes a first input object, whereas the rotating shaft constitutes a second input object when not being supported by the unidirectional clutch. A connection object comprises a first connection part capable of connecting to the first input object coaxially, and a second connection part capable of connecting to the second input object coaxially. Two separate connection states are provided, namely a state in which the first connection part and the first input object are connected to each other, and a state in which the second connection part and the second input object are connected to each other.

Подробнее
Номер записи: 62
09-03-2017 дата публикации

DAMPER

Номер: US20170067532A1
Автор: MURATA Toshiki
Принадлежит:

One embodiment provides a damper including: a first rotary member; a second rotary member; at least one elastic member that transmits torque between the first rotary member and the second rotary member; a first seat member disposed between the elastic member, and a first abutment portion of the first rotary member and a second abutment portion of the second rotary member on a counter-rotating direction side of the first rotary member; a second seat member disposed between the elastic member, and the first abutment portion and the second abutment portion on a rotating direction side of the first rotary member; and a sticking preventing mechanism, which converts part of a radially outward force generated by a centrifugal force into a restoring force of the elastic member in the circumferential direction. 1. A damper comprising:a first rotary member, which has a side plate having a disc-shape, a cylindrical portion that is extended in an axial direction from an outer circumferential edge portion of the side plate, and first abutment portions that are provided apart from each other in a circumferential direction;a second rotary member, which has second abutment portions that are provided apart from each other in the circumferential direction, and which is disposed rotatably relative to the first rotary member;at least one elastic member that transmits torque between the first rotary member and the second rotary member;a first seat member, which is disposed between the elastic member, and the first abutment portion and the second abutment portion on a counter-rotating direction side of the first rotary member, and which is configured to slide on an inner circumferential surface of the cylindrical portion as the first rotary member and the second rotary member rotate relatively;a second seat member, which is disposed between the elastic member, and the first abutment portion and the second abutment portion on a rotating direction side of the first rotary member, and which ...

Подробнее
Номер записи: 63
19-03-2015 дата публикации

BALANCER DEVICE FOR INTERNAL COMBUSTION ENGINE AND ITS ASSEMBLY METHOD

Номер: US20150075477A1
Автор: KITAMURA Masaharu
Принадлежит: Hitachi Automotive Systems, Ltd.

A balancer device for an internal combustion engine includes upper and lower housings made of aluminum alloy. The upper housing includes a leg part fixed to the engine. The lower housing is coupled to the upper housing by tightening bolts. A pair of balancer shafts are rotatably supported by the upper and lower housings. A positioning pin is disposed at a distal end portion of the leg part for positioning the upper housing with respect to the engine by positional correspondence to a positioning hole of the engine when the tightening bolts are tightened. The leg part is inclined outwardly with respect to a body of the upper housing such that a distal end of the positioning pin is located outside of a proximal end of the leg part with respect to the body of the upper housing when the tightening bolts are loosened. 1. A balancer device for an internal combustion engine , the balancer device comprising:an upper housing including a plurality of leg parts configured to be fixed to the internal combustion engine, wherein the upper housing is made of aluminum alloy;a lower housing configured to be coupled to the upper housing by a plurality of tightening bolts, wherein the lower housing is made of aluminum alloy;a pair of balancer shafts disposed in an internal space formed between the upper housing and the lower housing, and rotatably supported through bearings with respect to the upper housing and the lower housing; anda positioning pin disposed at a distal end portion of a corresponding one of the leg parts, and configured to extend longitudinally of the corresponding leg part, and position the upper housing with respect to the internal combustion engine by positional correspondence to a positioning hole of the internal combustion engine under a first condition that the tightening bolts are tightened to couple the lower housing to the upper housing;wherein the corresponding leg part is inclined outwardly with respect to a body of the upper housing such that a distal end ...

Подробнее
Номер записи: 64
24-03-2022 дата публикации

VIBRATION DAMPING DEVICE FOR MACHINE TOOL SPINDLE AND MACHINE TOOL COMPRISING SAME

Номер: US20220088733A1
Автор: SEO Eunsoo
Принадлежит:

A vibration damping device for a machine tool spindle is provided. An annular support plate is mounted at a lower portion of a distal end of the spindle, a plurality of support bars is fixed to the support plate in a vertical direction and installed in a longitudinal direction of the spindle adjacent to an outer periphery of the spindle, a pair of weight disks stacked by a plurality of arc-shaped disks made of a tuned mass member is fixed to be in close contact with the outer periphery of the spindle, facing each other, and a damping sheet made of an elastic member is inserted between the outer periphery of the spindle and the weight disks. The vibration damping device of the present invention may maximize a vibration damping effect by installing the vibration damping device at a position closest to the spindle where a vibration occurs. Furthermore, the vibration damping device of the present invention may effectively attenuate a variety of vibration phenomena having various resonant frequencies of a machine tool spindle by constituting the vibration damping device in a plurality of modular types which have different resonant frequency bands, respectively. 1. A vibration damping device for a machine tool spindle rotating a tool mounted at a distal end thereof , the vibration damping device comprising:a support plate mounted at a lower portion of a distal end of the machine tool spindle;a plurality of support bars fixed to the support plate in a vertical direction and installed in a longitudinal direction of the machine tool spindle adjacent to an outer periphery of the machine tool spindle;at least one pair of weight disks stacked by a plurality of arc-shaped disks made of a tuned mass member and fixed to a distal end of the support bar to be in close contact with the outer periphery of the machine tool spindle, facing each other; anda damping sheet made of an elastic member which becomes closely in contact with the outer periphery of the machine tool spindle and ...

Подробнее
Номер записи: 65
24-03-2022 дата публикации

DYNAMIC DAMPER, HEADREST, AND VEHICULAR SEAT

Номер: US20220089076A1
Автор: MISHIBA Kazuhiro, Murayama Taro, SO Tadashi
Принадлежит:

A dynamic damper is provided which includes a weight, an elastic member that supports the weight so as to allow vibration, and a damper case that houses the weight and the elastic member, wherein the dynamic damper also includes corner part checking means for checking at least some corner parts among corner parts where at least one end face of the weight and first and second side faces that are each continuous from the one end face and are adjacent to each other meet. This enables the ease of assembly to be enhanced by enabling a corner part of a weight to be checked when assembling the weight into a damper case, and also enables the state in which the elastic member is mounted on an end part of the weight to be easily checked. 1. A dynamic damper comprising a weight , an elastic member that supports the weight so that the weight can vibrate , and a damper case that houses the weight and the elastic member ,wherein the dynamic damper comprises corner part checking device for checking at least some corner parts among corner parts where at least one end face of the weight and first and second side faces that are each continuous from said one end face and are adjacent to each other meet.2. The dynamic damper according to claim 1 , wherein the elastic member comprises a first elastic member that covers an outside face between one end face and another end face of the weight over substantially an entire periphery claim 1 , and second and third elastic members that each provide a join between said one end face and said other end face of the weight and an inner face of the damper case.3. The dynamic damper according to claim 2 , wherein the corner part checking device is formed from a cutout part that is formed in the first elastic member so as to expose at least some of the corner parts among a plurality of the corner parts of the weight.4. The dynamic damper according to claim 2 , wherein the first elastic member is formed into an end part shape that exposes at least one ...

Подробнее
Номер записи: 66
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 ...

Подробнее
Номер записи: 67
15-03-2018 дата публикации

MODULAR ISOLATING SYSTEM

Номер: US20180073592A1
Автор: Morrison David
Принадлежит:

An isolating assembly, a modular isolating system including the assembly and a method of using the same. The system includes a plurality of individual isolating assemblies, each isolating assembly being engageable with an article; and wherein each isolating assembly includes a lower isolator that rests upon a flat surface; an upper isolator that is engageable with the article; and a connector having first and second ends. The first end of the connector engages the lower isolator and the second end of the connector engages the upper isolator. The upper isolator is positioned above the lower isolator and is movable relative to the lower isolator when vibration from the article is transferred to the upper isolator. The connector may be a polarizing connector that restricts the movement of the upper isolator in a first direction but permits movement thereof in a second direction that is orthogonal to the first direction. 1. (canceled)2. The isolating assembly as defined in claim 8 , wherein a bottom surface of the upper isolator is spaced a distance away from a top surface of the lower isolator; and wherein the upper isolator is movable relative to the lower isolator.3. The isolating assembly as defined in claim 8 , wherein the connector is a polarizing connector that permits the upper isolator to move back-and-forth in a first direction and in a direction opposite to the first direction but does not permit the upper isolator to move back and forth in a second direction and in a direction opposite to the second direction; where the first direction and second direction are at right angles to each other.4. The isolating assembly as defined in claim 8 , wherein the connector has a generally oval shape when viewed from either of the first and second ends.5. The isolating assembly as defined in claim 8 , wherein the connector is a non-polarizing connector that allows the upper isolator to move back-and-forth relative to the lower isolator in a first direction and in a ...

Подробнее
Номер записи: 68
24-03-2022 дата публикации

Apparatus for Stabilizing Movements of Two Elements That are Movable Relative to One Another

Номер: US20220090645A1
Автор: BICHLER Vinzenz, STUMPER Timo
Принадлежит: BETTERGUARDS TECHNOLOGY GmbH

An apparatus for stabilizing movements of two elements of a body joint and/or of a piece of sports equipment that are movable relative to one another, the apparatus comprising: a receptacle fixable to a first element, the receptacle being filled with a filling medium and the receptacle comprising a receiving opening, and an interaction element, which is fixable to a second element and is displaceable received at least in part in the receptacle and extends through the receiving opening, the part of the interaction element that is situated in the receptacle being able to interact with the filling medium. The receptacle comprises a first attachment element for transmitting force between the receptacle and the first body, and the interaction body comprising a second attachment element for transmitting force between the interaction body and the second body, the first attachment element comprising at least one protrusion, which extends from a longitudinal axis of the apparatus, in order provide an attachment surface for fixing the first body. 21. The device as claimed in , wherein the first connection element is arranged in the region of the receiving opening for the transfer of force between the receptacle and the first body.3. The device as claimed in claim 2 , wherein the first connection element isinserted in the receiving opening or placed on the receiving opening and at least partially closes off a receiving space with respect to the surroundings.4. The device as claimed in claim 2 , wherein the first connection element at least partially closes off a receiving space of the receptacle with respect to the surroundings.5. The device as claimed in claim 1 , wherein the first connection element extends substantially perpendicularly from a relative movement direction (R) of the device in order to provide a connection surface for fixing to the first body.6. The device as claimed claim 1 , wherein the first connection element is configured to transfer forces of at least ...

Подробнее
Номер записи: 69
24-03-2022 дата публикации

MECHANICAL SPRING ACTUATOR

Номер: US20220090662A1
Автор: JR. Gerald J., Spyche
Принадлежит: KYNTEC CORPORATION

A linear actuator comprising a housing with first and second ends, and defining a central cavity extending axially therethrough; a tube having first and second portions, the first portion arranged to slide within the central cavity of the housing, and the second portion extending outwardly from the second end of the housing; a first elongated rotatable screw positioned axially within the central cavity and coaxial with the rube; a first nut mounted about the first elongated rotatable screw and configured to move axially as the first elongated rotatable screw rotates; a second elongated rotatable screw positioned axially within the central cavity; a second nut mounted about the second elongated rotatable screw and configured to move axially within the central cavity as the second elongated rotatable screw rotates; and a spring positioned around the second elongated rotatable screw between the second nut and the second end of the housing. 1. A linear actuator , comprising:a housing comprising a first end and a second end, and defining a central cavity extending axially therethrough;a tube having a first portion and a second portion, the first portion arranged to slide within the central cavity of the housing, and the second portion extending outwardly from the second end of the housing;a first elongated rotatable screw positioned axially within the central cavity of the housing and connected to the tube, wherein the first elongated rotatable screw is coaxial with the tube;a first nut positioned within the central cavity of the housing and mounted about the first elongated rotatable screw, wherein the first nut is configured to move axially within the central cavity of the housing as the first elongated rotatable screw rotates;a second elongated rotatable screw positioned axially within the central cavity of the housing;a second nut positioned within the central cavity of the housing and mounted about the second elongated rotatable screw, wherein the second nut is ...

Подробнее
Номер записи: 70
05-03-2020 дата публикации

VERTICAL VIBRATION ISOLATION SYSTEM

Номер: US20200072313A1
Автор: CHANG Chia-Ming, HSU Chen-Hao, HUANG Shieh-Kung, YANG Cho-Yen
Принадлежит:

The vertical vibration isolation system of the present invention includes a bearing base, a guide rail assembly and a plurality of buckling elements. The bearing base has an upper platform that can move along a vertical direction. The guide rail assembly surrounds the bearing base and has a plurality of arc-shaped sliding channels. The top portion of each buckling element can move with the upper platform, while the bottom portion of each buckling element is slidably connected to the corresponding arc-shaped sliding channel. The vertical displacement of the upper platform would cause different degrees of buckling of the buckling elements and also induces sliding motion of the bottom portion of the buckling elements along the arc-shaped sliding channels. Accordingly, the vertical vibration isolation system can provide nonlinear restoring force by buckling and sliding mechanisms so as to exhibit vertical vibration isolation effect. 1. A vertical vibration isolation system , comprising:a bearing base, having an upper platform, a motion guide mechanism and a lower fundament, wherein the upper platform is configured for disposing a vibration-isolated object thereon, and the motion guide mechanism is disposed between the upper platform and the lower fundament to permit displacement of the upper platform along a vertical direction with respect to the lower fundament;a guide rail assembly, surrounding the bearing base and having a plurality of arc-shaped sliding channels, wherein each of the arc-shaped sliding channels extends from an inner position upwardly and laterally away from the bearing base to an outer position; anda plurality of buckling elements, each having a top portion, a bottom portion and a body portion, wherein (i) the top portions of all the buckling elements are movable with the upper platform, (ii) the bottom portions of all the buckling elements are slidably disposed at the corresponding arc-shaped sliding channels, (iii) when the upper platform moves ...

Подробнее
Номер записи: 71
18-03-2021 дата публикации

Optimized placement of vibration damper tools through mode-shape tuning

Номер: US20210079738A1
Автор: Andreas Hohl, Armin Kueck, Christian Herbig, Dennis Heinisch, Hanno Reckmann, Mathias Tergeist, Sui-Long Lam, Vincent Kulke, Volker Peters
Принадлежит: Baker Hughes Oilfield Operations LLC

Systems and methods for damping torsional oscillations of downhole systems are described. The systems include a downhole drilling system disposed at an end of the downhole system in operative connection with a drill bit. A damping system is installed on the downhole drilling system, the damping system having at least one damper element configured to dampen at least one HFTO mode. At least one mode-shape tuning element is arranged on the drilling system. The at least one mode-shape tuning element is configured and positioned on the drilling system to modify at least one of a shape of the HFTO mode, a frequency of the HFTO mode, an excitability of the HFTO mode, and a damping efficiency of the at least one damper element.

Подробнее
Номер записи: 72
18-03-2021 дата публикации

Centrifugal pendulum

Номер: US20210079974A1
Автор: Andreas Bruns, Herbert Meyer, Jürgen Pfeiffer, Lutz Pahlich, Michael Buck, Peter Klumpp, Thomas Fischer, Thomas Förster
Принадлежит: Audi AG

A centrifugal pendulum for damping rotational irregularities of a driveshaft of an internal combustion engine, having a carrier flange element connectable indirectly or directly to the driveshaft, and having multiple pendulum elements displaceable in relation to the carrier flange element, and guided via rollers in pendulum paths. Each pendulum element is displaceable in relation to the carrier flange element in the circumferential direction between a first and a second stop position. At least one friction element having defined thermal expansion properties, which are different in particular from the carrier flange element and/or the pendulum elements, is associated with the carrier flange element, and is designed and arranged in such a way that in a defined temperature range of the centrifugal pendulum, upon a movement of at least one pendulum element corresponding to the friction element in the direction of a stop position.

Подробнее
Номер записи: 73
18-03-2021 дата публикации

Torsional vibration absorber with improved retention feature

Номер: US20210079975A1
Автор: Rolando V. Rodriguez
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A torsional damper assembly includes a hub having an outer periphery, an annular elastomeric element disposed about the outer periphery, and an annular inertia ring disposed about the elastomeric element. The inertia ring has an inner periphery adjacent the elastomeric element. The outer periphery of the hub is provided with a first plurality of surface features and the inner periphery of the inertia ring is provided with a second plurality of surface features. The first plurality of surface features is complementary to and engaged with the second plurality of surface features.

Подробнее
Номер записи: 74
18-03-2021 дата публикации

Vibration Isolation System and Lithographic Apparatus

Номер: US20210080835A1
Автор: DE HOON Cornelius Adrianus Lambertus, JACOBS Roy Hendrikus Emilie Maria, STARREVELD Jeroen Pieter, VERMEULEN Johannes Petrus Martinus Ber
Принадлежит: ASML Netherlands B.V.

The invention provides a vibration isolation system (IS), comprising a piston () to carry a payload, a connecting member (), a spring () and a flexible member (). The spring is arranged to support the piston along a direction with a positive stiffness. The flexible member is arranged to apply a force to the piston along the direction via the connecting member with a negative stiffness. 115- (canceled)16. A vibration isolation system , comprisinga piston arranged to carry a payload;a connecting member;a gas spring arranged to support the piston along a direction with a positive stiffness,a flexible member arranged to apply a force to the piston along the direction via the connecting member with a negative stiffness,wherein the flexible member comprises a leaf spring buckled in a third buckling mode.17. The vibration isolation system of claim 16 , wherein the connecting member is connected to the leaf spring in a center part of the leaf spring.18. The vibration isolation system of claim 17 , further comprising:a force frame arranged to support the leaf spring,wherein the force frame comprises a plurality of clamping members,wherein a clamping member closer to the center part of the leaf spring is more flexible than a clamping member further from the center part of the leaf spring.19. The vibration isolation system of claim 16 , wherein the leaf spring has a main surface perpendicular to the direction.20. The vibration isolation system of claim 16 , wherein the force is directed along the direction away from a nominal position in which the force is zero.21. The vibration isolation system of claim 20 , wherein the leaf spring is compressed in the nominal position.22. The vibration isolation system of claim 20 , wherein:the piston, the nominal position and the center part are arranged along the direction, and the nominal position is maintained in between the piston and the center part during operational use of the vibration isolation system.23. The vibration isolation ...

Подробнее
Номер записи: 75
18-03-2021 дата публикации

ASSEMBLY AND METHOD FOR DAMPING SWITCHING MOVEMENTS IN HIGH-VOLTAGE CIRCUIT BREAKERS

Номер: US20210082637A1
Автор: BIETZ MARIAN
Принадлежит:

An assembly for damping switching movements has a housing, which physically surrounds at least one piston, and which at least partly physically surrounds at least one rod. The rod is movable relative to the housing. The piston delimits a first fluid volume, which is fluidically connected to a second fluid volume by way of a throughflow opening. The rod is formed at one end as a hollow tube and physically surrounds the first fluid volume. The piston is guided in the hollow-tubular end of the at least one rod. A method for damping switching movements in a high-voltage circuit breaker includes decreasing a damping rate of the assembly for damping in a period in the time profile of the switching movement, in particular after a previous increase in the damping rate during the switching movement. 115-. (canceled)16. An assembly for damping switching movements , the assembly comprising:at least one piston;at least one rod being formed with a hollow tubular end;a housing spatially encasing said at least one piston and at least partially encasing said at least one rod, wherein said rod is mounted to be movable relative to said housing;said at least one piston delimiting a first fluid volume that is (directly or indirectly) fluidically connected via at least one throughflow opening to at least one second fluid volume;said at least one rod spatially surrounding the first fluid volume and said at least one piston being guided in said hollow tubular end of said at least one rod.17. The assembly according to claim 16 , wherein said at least one piston is spatially fixed relative to said housing.18. The assembly according to claim 16 , which comprises a web connecting said piston to said housing claim 16 , and said web having a smaller cross section perpendicular to a longitudinal axis of said web than said piston.19. The assembly according to claim 16 , wherein the first fluid volume is connected to the second fluid volume via a third fluid volume.20. The assembly according to ...

Подробнее
Номер записи: 76
31-03-2022 дата публикации

SHOCK ABSORBER AND SADDLE-TYPE VEHICLE

Номер: US20220097796A1
Автор: Ikeda Daisuke
Принадлежит: Hitachi Astemo, Ltd.

A shock absorber includes a first damping force generating portion which is fixed to a first end portion of a cylinder in an axial direction thereof, a second damping force generating portion which is disposed to be movable in the axial direction in the cylinder. The second damping force generating portion includes a first flow path which passes through a piston in the axial direction, the piston partitioning a space inside the cylinder, a first valve which opens and closes the first flow path, a first adjustment unit which adjusts a force required to open the first valve, a second flow path which is located at a different position from the first flow path and passes through the piston in the axial direction, a second valve which opens and closes the second flow path, and a second adjustment unit which adjusts a force required to open the second valve. 1. A shock absorber which is provided between a vehicle body and a rear wheel of a saddle-type vehicle , the shock absorber comprising:a first damping force generating portion which is fixed to a first end portion of a cylinder in an axial direction thereof; anda second damping force generating portion which is disposed to be movable in the axial direction in the cylinder,wherein the cylinder includes an inner cylinder and an outer cylinder,wherein an upper end portion of the inner cylinder and an upper end portion of the outer cylinder are inserted into and held in a damper case,wherein one end of a first communication passage formed to be opened in the damper case at a position facing an opening of the upper end portion of the inner cylinder, and the first communication passage allows an oil chamber at a first end portion side which is an inner space of the inner cylinder and an oil chamber of the first damping force generating portion to communicate with each other,wherein an opening portion is formed in the damper case, a second communication passage is formed in continuous with the opening portion, and the second ...

Подробнее
Номер записи: 77
12-03-2020 дата публикации

Linkage Extension System with Damped Motion

Номер: US20200079262A1
Автор: Iossifidis John, Oleson Michael L.
Принадлежит:

A linkage extension system and method for holding an extendable portion of a seat in a desired position while the extendable portion translates from a retracted to an extended position and any intermediate position. A coupled damper produces a holding force to counter gravity or other forces which cause the translation of the seat extension away from a desired position. The linkage extension system is self-powered and operates within the enclosed portion of the seat. 1. A linkage extension system , comprising:a movable cross member of a seat, the movable cross member movably coupled to a stationary member of the seat, the stationary member rigidly coupled to the seat, the movable cross member configured to translate along a movement plane to at least one of an extended position, a retracted position, and at least one intermediate position, the retracted position proximal to the seat and the extended position and at least one intermediate position distant from the seat;a pair of lower links rotationally coupled at a lower pivot joint with the stationary member, the pair of lower links configured to rotate within the movement plane;a pair of upper links rotationally coupled at an upper pivot joint with the movable cross member, the pair of upper links configured to rotate within the movement plane, the upper links and the lower links coupled to each other via a link pivot joint; andat least one damper operably coupled to at least one of: 1) the movable cross member, 2) at least one lower link, 3) at least one upper link, 4) at least one link pivot joint and 5) the stationary member;the at least one damper configured to provide a holding force, the holding force restricting translation of the movable cross member as the movable cross member is in one of: the extended position, the retracted position and the at least one intermediate position.2. The linkage extension system of claim 1 , wherein the at least one damper further comprises a helix shaft claim 1 , the helix ...

Подробнее
Номер записи: 78
31-03-2022 дата публикации

VIBRATIONAL DAMPENING ELEMENTS

Номер: US20220098985A1
Автор: Chakrabarti Suryarghya, Ertas Bugra Han
Принадлежит:

A vibrational dampening element is attached to a component and configured to adjust the amplitude of oscillations of the component. The vibrational dampening element includes a mass. The mass includes a main body and a member extending from the main body. A casing that encapsulates the mass. A fluidic chamber defined between the mass and the casing. A first fluidic portion is disposed between a first side of the mass and the casing. The first fluidic portion includes a first accumulator portion directly neighboring the member. A second fluidic portion is disposed between a second side of the mass and the casing. The second fluidic portion includes a second accumulator portion directly neighboring the member. The first accumulator portion is in fluid communication with the second accumulator portion. The vibrational dampening element further includes a primary passage that extends between the first fluidic portion and the second fluidic portion. 1. A vibrational dampening element attached to a turbine component and configured to adjust the amplitude of oscillations of the turbine component , the vibrational dampening element comprising:a mass having a main body and a member extending from the main body;a casing encapsulating the mass;a fluidic chamber defined between the mass and the casing and filled with a fluid;a first fluidic portion of the fluidic chamber disposed between a first side of the mass and the casing, wherein the first fluidic portion includes a first accumulator portion that extends along the member;a second fluidic portion disposed between a second side of the mass and the casing, wherein the second fluidic portion includes a second accumulator portion that extends along the member, and wherein the first accumulator portion is in fluid communication with the second accumulator portion; anda primary passage that extends between the first fluidic portion and the second fluidic portion.2. The vibrational dampening element as in claim 1 , wherein the ...

Подробнее
Номер записи: 79
31-03-2022 дата публикации

SHOCK ABSORBER STAND

Номер: US20220099152A1
Автор: Shalouf Fathalla
Принадлежит: Saudi Arabian Oil Company

A shock stand absorber includes a resilient layer disposed on a planar frame structure and a plurality of vertical supports positioned to support the planar frame structure from below. Each of the vertical supports includes a resilient member between a first vertical support member and a second vertical support member in a telescoping arrangement. The resilient member is deformable in response to a telescoping movement between the first vertical support member and the second vertical support member. A plurality of connecting webs are formed between the vertical supports. The plurality of vertical supports are longitudinally aligned with a plurality of points on one or more paths defined on the bottom side of the planar frame structure. 1. An apparatus comprising;a planar frame structure having a top side and a bottom side;a resilient layer disposed on the top side;a plurality of vertical supports positioned to support the planar frame structure from below, each of the vertical supports having a first vertical support member and a second vertical support member in a telescoping arrangement and a resilient member positioned between the first vertical support member and the second vertical support member, the first vertical support member coupled to the bottom side of the planar frame structure, the resilient member deformable in response to a telescoping movement between the first vertical support member and the second vertical support member; anda plurality of connecting webs formed between the vertical supports.2. The apparatus according to claim 1 , wherein the planar frame structure comprises a plurality of bar structures including pipes and beams claim 1 , each beam having an upper flange and a lower flange integrally connected with a web for resistance to loading in a vertical axis of the beam and to bending about an axis perpendicular to both a longitudinal axis and the vertical axis of the beam.3. The apparatus according to claim 2 , wherein each of the beams ...

Подробнее
Номер записи: 80
31-03-2022 дата публикации

TEMPERATURE COMPENSATING VALVE FOR GAS SPRINGS

Номер: US20220099155A1
Автор: Anderson Ryan T., Atwater D. Stuart, Baker Dennis R., Braat Kevin T., Hernden Tyler S.
Принадлежит:

A temperature compensating valve assembly is provided that includes a bimetallic spring that deforms from a closed position to an open position in response to temperature, and a single-piece valve body having an aperture therethrough and having an open end for receiving the bimetallic spring. The single-piece valve body includes integral retainers for retaining the bimetallic spring in the open end in a location such that the aperture is blocked by the bimetallic spring when in the closed position and is not blocked by the bimetallic spring when in the open position. 1. A temperature compensating valve assembly comprising:a bimetallic spring that deforms from a closed position to an open position in response to temperature; anda single-piece valve body having an aperture therethrough and having an open end for receiving the bimetallic spring, the single-piece valve body comprising integral retainers for retaining the bimetallic spring in the open end in a location such that the aperture is blocked by the bimetallic spring when in the closed position and is not blocked by the bimetallic spring when in the open position.2. The valve assembly of claim 1 , wherein the single-piece valve body further comprises:a cylindrical rim extending axially around the open end; anda support surface within the open end, the support surface extending radially inward from the cylindrical rim and recessed from the cylindrical rim,wherein the bimetallic spring includes a first side and a second side opposite the first side, the first side of the bimetallic spring is supported in the open end on the support surface.3. The valve assembly of claim 2 , wherein the integral retainers include resilient retaining snaps extending inward from the cylindrical rim claim 2 , the resilient retaining snaps configured to move radially outward as the bimetallic spring is pressed into the open end and to snap radially inward to engage and retain the second side of the bimetallic spring when the first ...

Подробнее
Номер записи: 81
12-03-2020 дата публикации

HYDRAULIC DAMPING DEVICE

Номер: US20200080613A1
Автор: ENDO Hiroshi, KONAKAI Seiryo, MAEDA Kazunari, NAKANO Gota
Принадлежит: Showa Corporation

The hydraulic damping device includes: a cylinder storing fluid; a piston configured to form a channel through which the fluid flows along with relative movement of a rod relative to the cylinder in a specific direction; a valve having elasticity, the valve being configured to open and close the channel in the piston; a movement permitting part configured to permit the valve to move between a contact position and a spaced position, the contact position being a position where the valve contacts the piston, the spaced position being a position where the valve is spaced from the piston; a restricting part configured to restrict bending of the valve at the spaced position; and a pressing part having elasticity, the pressing part being configured to press the valve against the piston. 1. A hydraulic damping device comprising:a cylinder storing fluid;a piston configured to form a channel through which the fluid flows along with relative movement of a rod relative to the cylinder in an axial direction;a valve having elasticity, the valve being configured to open and close the channel in the piston;a movement permitting part configured to permit the valve to move between a contact position and a spaced position, the contact position being a position where the valve contacts the piston, the spaced position being a position where the valve is spaced from the piston;a pressing part having elasticity, the pressing part being configured to press the valve against the piston; anda restricting part separate from the pressing part, the restricting part being configured to annularly contact the valve at the spaced position to thereby restrict the valve from moving farther from the spaced position relative to the piston radially inside of the valve.2. The hydraulic damping device according to claim 1 , whereinthe pressing part includes a plurality of protrusions extending radially outward, andthe plurality of protrusions include a first protrusion and a second protrusion, the first ...

Подробнее
Номер записи: 82
25-03-2021 дата публикации

VALVE MECHANISM AND SHOCK ABSORBER

Номер: US20210088099A1
Автор: FUJIKAWA Yosuke
Принадлежит: Showa Corporation

A valve mechanism includes an orifice collar having a hollow portion penetrating in an axial direction, a valve body having a central hole and an opening portion which penetrate in the axial direction and arranged so as to come into contact with an axial end surface of the orifice collar, and a drive valve which is movable in the axial direction and is arranged on an opposite side of the orifice collar with the valve body as a boundary, where the valve body includes spoke valves, each of which includes an outer frame portion, an inner frame portion, and a plurality of spoke portions connecting the outer frame portion and the inner frame portion, and a protective valve which protects the spoke portion when the spoke portion of the spoke valve is deformed. 1. A valve mechanism , comprising:a tubular body having a hollow portion penetrating in an axial direction;a valve body having a through hole penetrating in the axial direction and arranged so as to come into contact with an axial end surface of the tubular body; and 'the valve body includes,', 'a drive valve which is movable in the axial direction and is arranged on an opposite side of the tubular body with the valve body as a boundary, wherein'}a spoke valve which includes an outer frame portion formed in an annular shape, an inner frame portion formed in an annular shape on an inner side in a radial direction with respect to the outer frame portion, and a plurality of spoke portions connecting the outer frame portion and the inner frame portion, anda protective valve which protects the spoke portion when the spoke portion of the spoke valve is deformed,whereinthe protective valve is a claw valve having an annular outer frame portion and a claw portion protruding inward from the outer frame portion and formed at a position corresponding to the spoke portion of the spoke valve.2. The valve mechanism according to claim 1 , whereinthe valve body is formed by stacking a plurality of the spoke valves, andthe protective ...

Подробнее
Номер записи: 83
29-03-2018 дата публикации

Damping system for an endless track system

Номер: US20180086397A1
Автор: Jonathan PELLERIN, Yves SAUVAGEAU
Принадлежит: Soucy International Inc

Damping system for an endless track system, comprising: Damper operatively connectable between frame members for damping relative movement therebetween, including: cylinder and piston movable therewithin forming variable volume chamber containing liquid. Reservoir containing liquid and gas connected to chamber. Conduits connecting chamber to reservoir for allowing liquid to flow therebetween to move the piston. Gas in reservoir applying hydrostatic pressure to liquid, biasing piston toward an extended position and causing piston to move theretowards when load on endless track system is decreased, and causing piston to move toward a retracted position when load on endless track system is increased. Conduits connected spaced-apart to longitudinal sidewall of cylinder such that when piston moves toward retracted position, piston prevents liquid from flowing within a conduit, and liquid is permitted to flow within a conduit, causing liquid to flow at different rates between chamber and reservoir as piston moves toward retracted position.

Подробнее
Номер записи: 84
29-03-2018 дата публикации

DAMPER UNIT FOR AN ELEVATOR

Номер: US20180086599A1
Автор: Hess Stephan, Steiner Hubert
Принадлежит:

A damper unit for an elevator for reducing vertical vibrations of an elevator car of the elevator during a standstill includes a stamp-like acting element that acts on an end-face guide surface of a guide rail. The acting element is spaced from the guide rail in an idle position and can be connected slip-free to the guide rail by an eccentric drive in an active position. Force transmitting elements containing a shock damper for damping the motions of the elevator car during a standstill of the car adjoin the acting element. 115-. (canceled)16. A damper unit for an elevator , the damper unit being arranged on an elevator car of the elevator for reducing vibrations of the elevator car during a standstill , comprising:an acting element, in an idle position, being spaced apart from a guide rail of the elevator, the acting element, in an active position, being connected slip-free to the guide rail; andforce transmitting elements attached to the acting element for damping movements of the elevator car in the active position of the acting element to reduce vibrations of the elevator car.17. The damper unit according to wherein the acting element has a contact side provided with a traction element to prevent slippage when connected to the guide rail.18. The damper unit according to wherein the contact side is formed from a material having a static friction coefficient greater than 1.19. The damper unit according to wherein the acting element claim 17 , at least in an area of the contact side claim 17 , includes an elastic material that is deformed by pressing on the guide rail in the active position of the acting element.20. The damper unit according to wherein the contact side of the acting element is made of a rubber-based rubber coating.21. The damper unit according to wherein the rubber-based rubber coating is one of ethylene propylene diene rubber (EPDM) and nitrile butadiene rubber (NBR).22. The damper unit according to wherein the acting element has at least one ...

Подробнее
Номер записи: 85
21-03-2019 дата публикации

COMPARTMENT DAMPER ASSEMBLY

Номер: US20190085610A1
Автор: Hamilton Philip M., Turrentine Lorne K.
Принадлежит: ILLINOIS TOOL WORKS INC.

A compartment damper assembly that is configured to vary force on a moveable member of a compartment. The compartment damper assembly includes a housing with an interior chamber. The compartment damper assembly also includes an air regulator system within the interior chamber of the housing. The air regulator system includes a piston movably disposed within the interior chamber of the housing, wherein a first chamber section and second chamber section are formed within the interior chamber, a piston support extending through the piston and including a variable depth slot to allow air to pass between the first chamber section and second chamber section to vary a vacuum force on the piston, and a spring element engaging the piston and the piston support to place a spring force between the piston and piston support. 1. A compartment damper assembly that is configured to vary force on a moveable member of a compartment , the compartment damper assembly comprising:a housing including an interior chamber; and a piston movably disposed within the interior chamber of the housing, wherein a first chamber section and second chamber section are formed within the interior chamber;', 'a piston support extending through the piston and including a variable depth slot to allow air to pass between the first chamber section and second chamber section to vary a vacuum force on the piston; and', 'a spring element engaging the piston and the piston support to place a spring force between the piston and piston support., 'an air regulator system in fluid communication with the interior chamber of the housing, the air regulator system comprising2. The compartment damper assembly of claim 1 , wherein the spring element is configured so that the spring force of the spring element resists the vacuum force.3. The compartment damper assembly of claim 2 , wherein the piston support is configured to move relative to the piston to vary a size of an orifice formed in the first chamber by the ...

Подробнее
Номер записи: 86
21-03-2019 дата публикации

BUFFER STOPPER

Номер: US20190085928A1
Автор: MIZUMACHI Shoji
Принадлежит: NOK CORPORATION

A buffer stopper capable of increasing an absorbable energy amount without causing changes in characteristics due to wear of a buffer body. In order to achieve the object, the buffer body containing a rubber elastic body disposed between an end surface formed in a housing and an end surface formed in a shaft which is relatively movable in the axial direction with respect to the housing and a wear resistant sheet which is provided so as to surround the outer peripheral surface of the buffer body and which can contact an inner peripheral surface of the housing by expansion and deformation in the radial direction of the buffer body are provided. 1. A buffer stopper comprising:a buffer body containing a rubber elastic body disposed between an end surface formed in a housing and an end surface formed in a shaft which is relatively movable in an axial direction with respect to the housing; anda wear resistant sheet which is provided so as to surround an outer peripheral surface of the buffer body and which can contact an inner peripheral surface of the housing by expansion and deformation in a radial direction of the buffer body.2. The buffer stopper according to claim 1 , whereinthe wear resistant sheet contains cloth having elasticity. The present invention relates to a buffer stopper attached as a buffer unit to an end portion of a steering rack in a steering gear of vehicles, for example.An apparatus in which a shaft and a housing may collide with each other in the axial direction as in a steering rack and a rack housing of a steering gear of vehicles, for example, is provided with a buffer stopper for the purpose of preventing noise and breakage caused by a shock.illustrates a buffer stopper according to a conventional technique in an attachment state. In , the reference numeral denotes a housing and the reference numeral denotes a shaft passed through the housing so as to be reciprocatable in the axial direction. The buffer stopper is disposed between an end surface ...

Подробнее
Номер записи: 87
21-03-2019 дата публикации

TORSIONAL VIBRATION DAMPER WITH LOW ELASTOMER CONTENT

Номер: US20190085934A1
Автор: Manzoor Suhale
Принадлежит: Optimized Solutions, LLC

The disclosed invention is a Torsional Vibration Damper (TVD) that employs the use of two novel features namely the receiving ledge and the guiding ledge that allows it to have the following four advantages over conventional TVDs: (1) a reduced volume of elastomer; (2) a narrower axial thickness; (3) enhanced performance due to increased real-estate for the ring; and (4) an ability to be assembled without elaborate fixturing or bonding; while not compromising its structural and modal stability. 1. A Torsional Vibration Damper (TVD) that uses a reduced volume of elastomer and eliminates the need for an assembly fixture or bonding by virtue its construction , comprising: a second cylindrical surface that shares the same central axis with the first cylindrical surface but is displaced radially outward;', 'a first outer annular surface that bounds the second cylindrical surface axially;', 'a second inner annular surface opposing the first outer annular surface that bounds the second cylindrical surface axially;, 'a hub that is bounded on its radially distal extremity by a first cylindrical surface defined by its outer diameter comprising a receiving-ledge including'} a second cylindrical surface that shares the same central axis with the first cylindrical surface but is displaced radially inward;', 'a first outer annular surface that bounds the second cylindrical surface axially;', 'a second inner annular surface opposing the first annular surface that bounds the second cylindrical surface axially;, 'a ring that is bounded on its radially proximal extremity by a first cylindrical surface defined by its inner diameter comprising a guiding-ledge including'} is first stretched and mounted on the hub received radially by the first cylindrical surface of the hub, and axially by the second inner annular surface of the receiving ledge;', 'is next compressed by the first cylindrical surface of the ring, and axially by the second inner annular surface of the guiding ledge;', 'in ...

Подробнее
Номер записи: 88
05-05-2022 дата публикации

WHOLE BODY VIBRATION TRANSMISSION REDUCTION DEVICE

Номер: US20220134920A1
Автор: BARRIE Alexander, Hassan Marwan, OLIVER Michele
Принадлежит:

A vibration damping device for reducing transmissibility of an excitation frequency comprising: a top plate; a bottom plate secured to a base; a linkage arm arrangement coupled to the top plate and the bottom plate; at least one resilient member coupled to the top plate and the bottom plate; a load sensor for determining a mass of a load on the top plate; at least one accelerometer; a damper coupled to the linkage arm arrangement and the top plate, wherein the damper is controllable to modify stiffness of the device.

Подробнее
Номер записи: 89
05-05-2022 дата публикации

INTEGRATED HYDRAULIC DAMPER FOR TORSIONAL OSCILLATION REDUCTION

Номер: US20220136582A1
Автор: Himmelmann Richard A.
Принадлежит:

A rotor assembly of an electric machine includes a rotor body and a shaft assembly located at a central axis of the rotor assembly, and operably connected to the rotor body. The shaft assembly includes a main rotor shaft operably connected to the rotor body, a center drive shaft located inside of the main rotor shaft, and a hydraulic damper sleeve located radially between the main rotor shaft, defining a plurality of cavities between the hydraulic damper sleeve and the center drive shaft. The hydraulic damper sleeve is configured to urge a fluid into and out of the plurality of cavities thereby damping relative circumferential motion between the main rotor shaft and the center drive shaft.

Подробнее
Номер записи: 90
19-03-2020 дата публикации

Bump Stop

Номер: US20200086708A1
Автор: Cervantes William
Принадлежит:

Provided herein is a bump stop including a cylindrical body, a cylindrical shaft positioned within the cylindrical body and axially aligned with the cylindrical body, a top retainer and a bottom retainer each connected to an end of the cylindrical body. The cylindrical shaft protrudes through the bottom retainer. A spring is connected to one end of the cylindrical shaft and is connected to the top retainer. A shear thickening fluid disposed in the cylindrical body, between the cylindrical body and the cylindrical shaft. The cylindrical shaft includes an obstruction perpendicular to an axis of the cylindrical shaft, and the obstruction and the shear thickening fluid affect control of movement of the cylindrical shaft under impact. 1. A bump stop comprising:a cylindrical body;a cylindrical shaft positioned within the cylindrical body and axially aligned with the cylindrical body;a top retainer and a bottom retainer each connected to an end of the cylindrical body, the cylindrical shaft protruding through the bottom retainer;a spring connected to one end of the cylindrical shaft and connected to the top retainer; anda shear thickening fluid disposed in the cylindrical body, between the cylindrical body and the cylindrical shaft,wherein the cylindrical shaft includes an obstruction perpendicular to an axis of the cylindrical shaft, the obstruction and the shear thickening fluid affecting movement of the cylindrical shaft under impact.2. The bump stop according to claim 1 , wherein the obstruction and the shear thickening fluid control the cylindrical shaft to have little or zero movement under high impulse.3. The bump stop according to claim 1 , wherein the obstruction and the shear thickening fluid control the cylindrical shaft to move toward the top retainer under low impulse.4. The bump stop according to claim 1 , wherein the shear thickening fluid is self-contained within the bump stop.5. The bump stop according to claim 1 , wherein a length of the cylindrical body ...

Подробнее
Номер записи: 91
19-03-2020 дата публикации

DEVICE HAVING A CONTROLLABLE ROTARY DAMPER, AND METHOD

Номер: US20200087965A1
Автор: Battlogg Stefan
Принадлежит:

A door component has a controllable rotary damper and two connector units which can be moved relative to one another. One of the two connector units can be connected to a load-bearing construction and the other one can be connected to a movable door device of a vehicle, in order to damp a movement of the door device between a closed position and an open position in a controlled manner. Two mutually engaged spindle units are arranged between the two connector units, one spindle unit being a threaded spindle and the other being a spindle nut. A first spindle unit is fastened rotatably on a coupling rod connected to one of the connector units. A magnetorheological transmission device is arranged between the coupling rod and the first spindle unit, in order to brake a rotational movement of the first spindle unit as required. 126-. (canceled)27. An apparatus , comprising:a damper device with two attachment units that are movable relative to one another, and a controllable rotary damper configured to dampen a relative movement of said two attachment units with respect to one another in controlled fashion;two spindle units disposed between said two attachment units, said two spindle units being in engagement with one another, and one of said spindle units being a threaded spindle and another of said spindle units being a spindle nut;said two spindle units including a first spindle unit rotatably fastened on a coupling rod connected to one of said two attachment units; anda magnetorheological transmission apparatus arranged between said coupling rod and said first spindle unit in order to influence a rotational movement of said first spindle unit.28. A door component , comprising:a controllable rotary damper and two attachment units that are movable relative to one another, wherein one of said two attachment units is connectable to a supporting structure and another of said two attachment units is connectable to a movable door in order to dampen a movement of the door ...

Подробнее
Номер записи: 92
01-04-2021 дата публикации

Vehicle Operator Awareness System

Номер: US20210094820A1
Автор: Chad Johnathan Staller, Christopher Matthew D&#39;Eramo, Clifford Shaun Webb, Douglas Dallesandro, Philipp Haban, Richard Brian Donnelly
Принадлежит: Uatc LLC

Systems and methods for maintaining autonomous vehicle operator awareness are provided. A method can include determining, by a computing system, an awareness challenge for an operator of a vehicle. The awareness challenge can be based on object data. The awareness challenge can have one or more criteria. The criteria can include a challenge response interval, a response time, and an action for satisfying the awareness challenge. The method can include initiating, by the computing system, a timer measuring elapsed time from a start time of the challenge response interval. The method can include communicating to the operator, by the computing system, a soft notification indicative of the awareness challenge during the challenge response interval. The method can include determining, by the computing system, whether the operator provides a user input after the response time interval and whether the user input corresponds to the action for satisfying the awareness challenge.

Подробнее
Номер записи: 93
12-05-2022 дата публикации

Scalable damper

Номер: US20220144036A1
Автор: Gert Mangelschots
Принадлежит: Tenneco Automotive Operating Co Inc

A damper including a pressure tube, a piston, and a reserve tube is provided. The piston is arranged inside the pressure tube and divides the pressure tube into first and second working chambers. The reserve tube extends about the pressure tube to define a reserve tube chamber between the pressure tube and the reserve tube. A first damper port is arranged in communication with the second working chamber and a second damper port is arranged in communication with the reserve tube chamber. A remote valve assembly is spaced from the damper. The remote valve assembly includes a first electromagnetic valve that is arranged in communication with the first damper port by a first hydraulic line and a second electromagnetic valve that is arranged in communication with the second damper port by a second hydraulic line. An accumulator is arranged in communication with the first and second electromagnetic valves.

Подробнее
Номер записи: 94
12-05-2022 дата публикации

LIQUID INERTIA VIBRATION ELIMINATION SYSTEM WITH COMPOUND PERIOD STRUT

Номер: US20220144416A1
Автор: Romano Peter Quinn
Принадлежит: Bell Textron Inc.

A liquid inertia vibration elimination (“LIVE”) system for a rotor system having n number of blades. The LIVE system includes a first tuned vibration reduction component configured to provide a maximum vibratory isolation at a frequency below 2*n/rev and a second tuned vibration reduction component configured to provide a maximum vibratory isolation at a frequency above 3*n/rev. 1. A liquid inertia vibration elimination (“LIVE”) system for a rotor system having n number of blades , comprising:a first tuned vibration reduction component configured to provide a maximum vibratory isolation at a frequency below 2*n/rev; anda second tuned vibration reduction component configured to provide a maximum vibratory isolation at a frequency above 3*n/rev.2. The LIVE system of claim 1 , wherein the second tuned vibration reduction component comprises a compound periodic strut.3. The LIVE system of claim 2 , wherein the second tuned vibration reduction component is configured to be tunable during operation4. The LIVE system of claim 1 , wherein the first tuned vibration reduction component is configured to be tunable during operation.5. The LIVE system of claim 1 , wherein a resonance of the second tuned vibration reduction component is selected to not coincide with rotor harmonics.6. The LIVE system of claim 1 , wherein the first tuned vibration reduction component is coupled to a plurality of the second tuned vibration reduction components.7. A rotorcraft claim 1 , comprising:a rotor system comprising n number of blades;a fuselage; and a first tuned vibration reduction component configured to provide a maximum vibratory isolation at a frequency below 2*n/rev; and', 'a second tuned vibration reduction component configured to provide a maximum vibratory isolation at a frequency above 3*n/rev., 'a liquid inertia vibration elimination (“LIVE”) system, comprising8. The rotorcraft of claim 7 , wherein the second tuned vibration reduction component comprises a compound periodic strut. ...

Подробнее
Номер записи: 95
01-04-2021 дата публикации

Centrifugal pendulum device having a pre-stressing element for guiding the cylindrical rollers

Номер: US20210095739A1
Автор: Simon Eckerle
Принадлежит: Schaeffler Technologies AG and Co KG

A centrifugal pendulum device for use in a drive train of a vehicle powered by an internal combustion engine includes at least one support flange rotatable about an axis of rotation to which pendulum masses are mounted thereon in a circumferential direction via a bifilar pendulum suspension. The pendulum masses are configured to perform a relative movement with respect to the support flange when a rotational irregularity occurs in the drivetrain under effects of centrifugal force in conjunction with cylindrical rollers which are guided in roller tracks of the support flange. The pendulum masses run in opposite directions to one another and thereby absorb vibrations. The support flange includes roller tracks which are open in a direction of the axis of rotation and all the cylindrical rollers are acted upon by force by a prestressing element radially in the direction of the roller tracks.

Подробнее
Номер записи: 96
12-05-2022 дата публикации

Vibration Isolator with Zero Poisson's Ratio Outer Tube

Номер: US20220145957A1
Автор: Brian J. Pinkelman, Paul A. Gilmore, Ryohei Tsuruta, Umesh Gandhi
Принадлежит: Toyota Motor Engineering and Manufacturing North America Inc

Systems and methods for limiting transmission of vibrations and forces causing vibrations from one element to another are provided. A vibration isolator may include a compressible inner member and an outer member compressible with the inner member. The outer member may be positioned at least partially around the inner member to provide lateral support to the inner member. The outer member may maintain a consistent diameter and compression force when in a compressed state. The outer member may include a tube with a zero or near-zero Poisson's ratio.

Подробнее
Номер записи: 97
12-05-2022 дата публикации

VOLUME CHANGE COMPENSATION DEVICE AND DAMPER DEVICE

Номер: US20220145959A1
Автор: NAKAYA Kazumasa
Принадлежит:

Provided are a volume change compensation device capable of reducing a manufacturing burden with a simple configuration and a damper device including the volume change compensation device. A damper device includes a rotary damper, and includes a volume change compensation device in a shaft of a rotor . The volume change compensation device includes an inner cylinder piston pressed by an inner cylinder piston pressing elastic body in a body tube communicating with a hydraulic fluid housing portion of the damper device through a connection path . The inner cylinder piston is formed in a bottomed cylindrical shape opening on a connection path side. In the inner cylinder piston , an inner cylinder inner small piston is pressed against a bottom portion by a small piston pressing elastic body . An air hole is formed at the bottom portion of the inner cylinder piston . The inner cylinder inner small piston slides in the inner cylinder piston according to the amount of hydraulic fluid in the inner cylinder piston 1. A volume change compensation device connected to a hydraulic fluid housing portion liquid-tightly housing hydraulic fluid including liquid to compensate for a change in a volume of the hydraulic fluid , comprising:a body tube formed in a tubular shape, communicating with the hydraulic fluid housing portion at one opening, and housing part of the hydraulic fluid;an inner cylinder piston formed in a bottomed cylindrical shape and slidably provided along an axis direction in a state in which the part of the hydraulic fluid is housed in the body tube;an inner cylinder inner small piston slidably provided along the axis direction in the inner cylinder piston; andan inner cylinder piston pressing elastic body provided on an opposite side of the inner cylinder piston from a side of the one opening in the body tube and elastically pressing the inner cylinder piston toward the one opening side,wherein the inner cylinder piston is, in the body tube, arranged in such an ...

Подробнее
Номер записи: 98
06-04-2017 дата публикации

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

Номер: US20170097064A1
Автор: INAGAKI Tomoki, Maruyama Kazuto, MIYAKOSHI Hideaki, NAGAE Akihiro, OI Yoichi, TSUJI Hiroki
Принадлежит: AISIN AW CO., LTD.

A centrifugal pendulum-type vibration absorbing device that includes a support that rotates together with any one of the rotary elements of the damper; and a mass that is supported by the support so as to oscillate freely, wherein the centrifugal pendulum-type vibration absorbing device is designed to have an effective order that is greater by at least a correction amount associated with the hysteresis of the damper than an order of vibration that is generated in the driving device to be damped. 1. A centrifugal pendulum-type vibration absorbing device that configures a starting system together with a damper including a plurality of rotary elements including an input coupled to a driving device and an output coupled to a transmission and a torque transfer elastic member that transfers torque between the input and the output , the centrifugal pendulum-type vibration absorbing device comprising:a support that rotates together with any one of the rotary elements of the damper; anda mass that is supported by the support so as to oscillate freely,wherein the centrifugal pendulum-type vibration absorbing device is designed to have an effective order that is greater by at least a correction amount associated with the hysteresis of the damper than an order of vibration that is generated in the driving device to be damped.2. The centrifugal pendulum-type vibration absorbing device according to claim 1 ,wherein the correction amount is determined so as to become greater as the hysteresis of the damper becomes greater.3. The centrifugal pendulum-type vibration absorbing device according to claim 1 ,wherein the hysteresis of the damper is quantified based on a torque difference between torque that is outputted from the output when a torsion angle of the damper reaches a predetermined angle with the input torque into the input increasing and torque that is outputted from the output when the torsion angle of the damper reaches the predetermined angle with the input torque into ...

Подробнее
Номер записи: 99
26-03-2020 дата публикации

PRESSURIZED TELESCOPIC FRONT FORK LEG, FRONT FORK AND VEHICLE

Номер: US20200094913A1
Автор: Danielsson Edvin, Richloow Elias, Sundevall Joakim, Wallen Magnus
Принадлежит:

The invention relates to a telescopic fork leg for a front fork of a vehicle, comprising an outer tube and an inner tube being telescopically arranged relative each other, and a main piston arrangement arranged in the inner tube configured to regulate a damping fluid for damping movements between two parts of the vehicle when in use. Further, the telescopic fork leg comprises a pressurizing piston arranged in the inner tube and configured to pressurize the damping fluid, the pressurizing piston comprising an axial first end portion facing the main piston arrangement, and further comprising an axial opposite second end portion facing a pressurized volume. Further, the telescopic fork leg comprises a fluid reservoir for holding a pressurized fluid, the fluid reservoir being fluidly coupled to the pressurized volume. Further, the pressurizing piston is coaxially arranged with the main piston arrangement, inside the inner tube and the fluid reservoir is at least partly arranged on an outside of the inner tube. Also a front fork and a vehicle having fork legs according to above are claimed. 2. The front fork according to claim 1 , wherein said fluid reservoir is arranged in a fork leg bottom body.3. The front fork according to claim 1 , wherein said pressurizing piston comprises a first sealing means configured to seal against the damping fluid claim 1 , and a second sealing means configured to seal against the pressurized fluid claim 1 , wherein said first and second sealing means are axially displaced along the axial extension of the pressurizing piston.4. The front fork according to claim 1 , wherein said damping fluid is a liquid claim 1 , and said pressurized fluid is a gas claim 1 , such as air claim 1 , nitrogen claim 1 , CO.5. The front fork according to claim 1 , further comprising a cylinder case arranged inside said inner tube claim 1 , wherein said pressurizing piston is arranged inside said cylinder case.6. The front fork according to claim 1 , further ...

Подробнее
Номер записи: 100