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

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

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Применить Всего найдено 8403. Отображено 100.
04-05-2017 дата публикации

Амортизатор для гашения резонансных колебаний в вибрационных машинах

Номер: RU0000170737U1
Автор: Петр Сергеевич Гордеев, Роман Андреевич Литвин, Сергей Васильевич Репин
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный архитектурно-строительный университет"

Полезная модель относится к области машиностроения и может быть использована для гашения резонансных колебаний в вибрационных машинах. Задачей заявляемой полезной модели является снижение величины резонансных колебаний вибрационной машины при незначительном снижении ее рабочих колебаний. Амортизатор для гашения резонансных колебаний в вибрационных машинах содержит цилиндр, в котором расположены направляющая штока с гидравлическим поршнем, гидравлическая полость, заполненная рабочей жидкостью и разделенная гидравлическим поршнем на нижнюю и верхнюю гидравлические части, соединенные между собой каналами, газовая полость, отделенная от нижней гидравлической части пневматическим поршнем, гидравлическая втулка, неподвижно установленная внутри цилиндра. Амортизатор снабжен дополнительной гидравлической и центрирующей втулками, неподвижно установленными внутри цилиндра, причем дополнительная гидравлическая втулка выполнена с внутренним диаметром, большим диаметра гидравлического поршня на два-пять миллиметров, а центрирующая втулка выполнена с четырьмя одинаковыми симметрично расположенными отверстиями и с центральным отверстием диаметром, большим диаметра штока гидравлического поршня на один миллиметр, при этом гидравлические втулки разнесены на расстояние, большее их высоты на величину, равную двойной рабочей амплитуде вибрационной машины, гидравлический поршень выполнен с восемью одинаковыми пазами, симметрично расположенными с каждого торца поршня, при этом нижний торец штока гидравлического поршня расположен внутри центрального отверстия центрирующей втулки и выступает за нее. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 170 737 U1 (51) МПК F16F 9/49 (2006.01) F16F 9/36 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21)(22) Заявка: 2016126922, 04.07.2016 (24) Дата начала отсчета срока действия патента: 04.07.2016 04.05.2017 Приоритет(ы): (22) Дата подачи заявки: 04.07.2016 Адрес для переписки: ...

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Номер записи: 1
01-08-2017 дата публикации

Амортизатор с плавающим поршнем

Номер: RU0000172928U1
Автор: Александр Олегович Харченко, Алексей Геннадьевич Остренко, Андрей Александрович Харченко
Принадлежит: Федеральное государственное автономное образовательное учреждение высшего образования "Севастопольский государственный университет"

Полезная модель относится к транспортному машиностроению, в частности к амортизирующим устройствам подвески, и может быть использована в передних и задних гидравлических и гидропневматических амортизаторах легковых автомобилей.Целью предлагаемого устройства является повышение стабильности зоны «мягкого хода» амортизатора, комфортности и устойчивости движения автомобиля независимо от загрузки и сложности дорожных условий.Технический результат достигается за счет того, что амортизатор содержит рабочий цилиндр и внешний резервуар для рабочей жидкости, рабочий поршень со штоком, перепускным клапаном и клапаном отдачи. В штоковой полости с возможностью осевого перемещения относительно штока размещен плавающий поршень. Указанный поршень размещен в нижней части штока между закрепленными на штоке буфером сжатия и буфером отбоя. Длина хода плавающего поршня относительно штока между указанными буферами сжатия и отбоя не превышает 1/4 от длины штока. Между поверхностями штока и осевого отверстия плавающего поршня установлены манжетные уплотнения и в указанном поршне выполнено не менее двух равномерно и диаметрально расположенных сквозных калиброванных отверстий, диаметр центровой окружности которых превышает внешние диаметры буферов сжатия и отбоя.Предлагаемая конструкция позволяет повысить стабильность «мягкого хода» амортизатора, комфортность и устойчивость автомобиля в сложных дорожных условиях и на виражах. Ц 1 172928 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) зо да 3) (51) МПК НЕ 9/48 (2006.01) НЕ 9/508 (2006.0Т) НЕ 9/516 (2006.0Т) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2016120792, 26.05.2016 (24) Дата начала отсчета срока действия патента: 26.05.2016 Дата регистрации: 01.08.2017 Приоритет(ы): (22) Дата подачи заявки: 26.05.2016 (45) Опубликовано: 01.08.2017 Бюл. № 22 Адрес для переписки: 299053, г. Севастополь, ул. Университетская, 33, ФГАОУ ВО "Севастопольский государственный университет" (72) Автор(ы): ...

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Номер записи: 2
09-02-2012 дата публикации

Remote adjustable shock absorber

Номер: US20120031720A1
Автор: Brian Goscinski
Принадлежит: Individual

A modified mono-tube shock is a lighter shock with less rod pressure, less seal drag, a greater range of valving, and faster heat dissipation. The shock includes an outer body, a shaft piston, a plurality of deflective discs, and a divider piston, wherein the divider piston is installed at a particular location inside the shock to create a gas chamber.

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Номер записи: 3
05-04-2012 дата публикации

Methods and apparatus for sag adjustment

Номер: US20120080279A1
Автор: Bryan Wesley Anderson, Dennis K. Wootten, Mario Galasso
Принадлежит: Fox Factory Inc

A method and apparatus for adjusting the sag setting of a vehicle suspension are disclosed. An integrated damper/gas spring shock absorber includes a bleed port located at a position on a gas spring cylinder corresponding to a desired sag setting. The gas spring may be over pressurized to a pressure above the expected operating pressure of the gas spring. The vehicle may then be loaded with the normal operating load, partially compressing the shock absorber. Opening the bleed port allows gas to vent from the gas spring, further compressing the shock absorber until a piston in the gas spring closes the bleed port from the inner surface of the gas spring cylinder. A sleeve may be inserted over the gas spring cylinder, the sleeve including one or more sealing elements that seal the bleed port from the outer surface of the gas spring cylinder during normal operation.

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Номер записи: 4
03-05-2012 дата публикации

Electrically controlable transmission for controlling the stiffness of a vehicle shock absorber

Номер: US20120103119A1
Автор: Cheng-Da Lin
Принадлежит: Individual

A transmission mechanism for electrically controlling the stiffness of a vehicle shock absorber comprises an actuator assembly, a transmission assembly, and an electronic controller. The transmission assembly comprises a step motor, a steel wire assembly, and a transmission control component. The transmission control component comprises a fixing nut, an outer casing body, a secondary bevel gear, and a main bevel gear. The outer casing body holds the main bevel gear and the secondary bevel gear, which are installed inside the outer casing body in the manner that they are engaged with each other and can freely rotate relative to the outer casing body. Inside the fixing nut are disposed spiral threads to be screw locked to the top of the shock absorber. The flexible steel wire is connected on one end with the step motor and on the other end with the secondary bevel gear to transmit the rotation of the motor. The design of this transmission mechanism allows the step motor to adjust the stiffness of the shock absorber without having to be installed on top of it. It reduces the volume and height of the shock absorber, decreases the required installation space, and enhances the applicability and efficiency of the shock absorber.

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Номер записи: 5
28-06-2012 дата публикации

Damping force control type shock absorber

Номер: US20120160620A1
Автор: Fumiyuki Yamaoka, Mikio Yamashita
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

Oil grooves of a shutter and oil holes of a stepped rod constitute first orifices as variable orifices whose opening areas are variable according to the rotational position of the shutter. The oil grooves of the shutter and oil holes of the stepped rod constitute third orifices as variable orifices. Cut portions of inner disk valves constitute second orifices. The opening areas of the variable orifices are changed by rotating the shutter, thereby controlling damping force characteristics in a low piston speed region and the relief pressures of pressure control valves independently of each other, and thus increasing the degree of freedom for adjusting the damping force characteristics.

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Номер записи: 6
16-08-2012 дата публикации

Springless combination shock absorber and suspension apparatus, and method of use

Номер: US20120205843A1
Автор: Mark M. Allen, Nicholas C. Giannopoulos
Принадлежит: ELITE SUSPENSION SYSTEMS LLC

A springless combination shock absorber and suspension apparatus comprising three tubes: An outer tube, a piston tube (inner tube) and a stationary (damping) tube, with a floating piston disposed in the inner piston tube, wherein the floating piston forms two chambers therein, a lower liquid chamber and an upper gas chamber. Fluid dampens shocks by passing through a two-way valve in the outer tube and may be controlled internally by a shim plate positioned over apertures or valve passageways, or, in a separate embodiment, by external adjustment of flow by rotating adjusting plates to open and close the valve passageways. The amount by which the gas chamber is reduced in compression is large enough to generate the high pressures required to produce spring-like forces. This design allows the gas pressure chamber to operate effectively as a spring.

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Номер записи: 7
04-10-2012 дата публикации

Shock absorber

Номер: US20120248670A1
Автор: Atsushi Maeda, Fumiyuki Yamaoka, Masaru Kouyama, Mikio Yamashita
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

A shock absorber includes first passages configured to communicate two chambers to flow a working fluid therebetween by movement of a piston, and a second passage configured to communicate with one chamber of the two chambers. The first passages have damping valves configured to suppress a flow of the working fluid generated by movement of the piston to generate a damping force. The second passage has a variable orifice having an area adjusted by an elastic member when a piston rod moves in an extension direction, a pressure chamber installed in series with the variable orifice, and a free piston configured to vary a volume of the pressure chamber by movement of the piston.

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Номер записи: 8
20-12-2012 дата публикации

Device for damping compressive forces

Номер: US20120318623A1
Автор: Klaus Mombour
Принадлежит: VOITH PATENT GMBH

The invention relates to a device for damping compressive forces designed to be reversible also upon dynamic impact load. With the objective of achieving the lowest possible construction volume while simultaneously retaining favorable damping properties both upon static as well as dynamic compression, the device comprises a cylinder having a hydraulic chamber, a hollow piston, a valve arrangement and a separating piston, wherein the valve arrangement divides the hydraulic chamber into a front hydraulic chamber region and a rear hydraulic chamber region and the separating piston separates a head space from the front hydraulic chamber region. The valve arrangement comprises an eccentric hydraulic compartment connected to a transfer-flow area which is sealed by an eccentrically arranged multiplier valve.

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Номер записи: 9
20-12-2012 дата публикации

Piston-Type Actuator and Static Fluid Damper and Vehicles Including Same

Номер: US20120319376A1
Автор: Hiroyuki Tokunaga, Jinghong Yu
Принадлежит: Individual

A vehicular fluid damper system comprises a piston-type actuator, a static fluid damper, first and second flow passages, a first flow control valve, and a controller. The piston-type actuator comprises a cylinder and a piston that cooperate with one another to define first and second chambers. The static fluid damper defines first, second, and third dampening chambers. The first and second dampening chambers are in fluid communication with one another. The second and third dampening chambers are in fluid communication with each other. The first flow passage is in fluid communication with the first dampening chamber and the first chamber. The second flow passage is in fluid communication with the second dampening chamber and the second chamber. The controller is configured to facilitate operation of the first flow control valve to change a flow rate of fluid through the first flow passage.

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Номер записи: 10
27-12-2012 дата публикации

Damping valve

Номер: US20120325603A1
Автор: Kouji Ootake, Ryosuke Kamakura, Toshihiro Mori, Yuusuke Matsushita
Принадлежит: Kayaba Industry Co Ltd

A damping valve comprises a through-hole forming a passage for a working fluid. A poppet having a center axis is seated on a valve seat around the through-hole. The poppet is housed in a housing so as to be free to slide along the center axis. The poppet is pressed against one wall surface of the housing by a biasing mechanism, that biases the poppet in a direction perpendicular to the center axis, vibration of the poppet is thereby suppressed.

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Номер записи: 11
14-03-2013 дата публикации

Fluid-filled cylindrical vibration-damping device

Номер: US20130062822A1
Автор: Toru Matsushita
Принадлежит: Sumitomo Riko Co Ltd

A fluid-filled cylindrical vibration-damping device including at least one orifice member attached to an inside of an outer cylindrical member so as to straddle openings of pocket portions and extend in a circumferential direction. An orifice passage is defined by covering an orifice forming groove of the orifice member with the outer cylindrical member. A stopper mechanism is constituted by contact between an inner shaft member and the outer cylindrical member via the orifice member. A reinforcing rib is formed in the orifice member so as to project from a bottom face of the orifice forming groove and extend in the circumferential direction while a projecting distal end face thereof is in contact with the outer cylindrical member. The reinforcing rib partitions at least a portion of a circumference of the orifice passage into a plurality of passages that have same fluid flow characteristics.

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Номер записи: 12
02-05-2013 дата публикации

Suspension Damper Device For A Bicycle

Номер: US20130105260A1
Автор: Chen Meng Tsung, Felsi Andreas
Принадлежит:

A suspension damper device comprising a housing adapted to be affixed, on which a suspension means may be supported which may be tensed in a direction of suspension via a damper body of a damping means adapted to be connected to a component to be dampened, wherein in the damper body a damper piston fixedly connected to the housing is guided which physically separates two damper spaces in the damper body, characterized in that three valves are provided whereby a volume flow of a fluid between the damping spaces may be controlled in particular during tensing of the suspension means in the direction of suspension. 1. A suspension damper device comprising a housing adapted to be affixed , a suspension means supported by the housing and which may be tensed in a direction of suspension via a damper body of a damping means adapted to be connected to a component to be dampened , wherein in the damper body a damper piston fixedly connected to the housing is guided which physically separates two damper spaces in the damper body , characterized in that three valves are provided whereby a volume flow of a fluid between the damping spaces controlled during tensing of the suspension means in the direction of suspension.2. The suspension damper device according to claim 1 , wherein the damper piston is fixedly connected to a guide rod affixed to the housing and separates a cylinder space from an annular space through which the guide rod extends claim 1 , wherein the three valves each control a volume flow of the fluid through the damper piston.3. The suspension damper device according to claim 1 , wherein the three valves each open a fluid connection between the cylinder space and the annular space when a respective predetermined pressure difference between the cylinder space and the annular space is exceeded claim 1 , and close the fluid connection when the pressure difference drops below the respective predetermined pressure difference.4. The suspension damper device according ...

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Номер записи: 13
02-05-2013 дата публикации

Damping valve for shock absorber

Номер: US20130105261A1
Автор: Takao Murata
Принадлежит: Kayaba Industry Co Ltd

The damping valve for a shock absorber includes a valve disc that delimits a cylinder interior filled with a working fluid, a port connects fluid chambers delimited by the valve disc, an leaf valve that is laminated onto the valve disc and is capable of moving in an axial direction of the valve disc so as to open and close the port in accordance with a differential pressure between the fluid chambers, and a biasing mechanism that biases the leaf valve in a direction for closing the port, wherein the biasing mechanism includes a shaft member constituted by a non-magnetic body, the leaf valve being disposed to be free to slide on an outer periphery of the shaft member; and a moving magnet that uses a magnetic force thereof to bias the leaf valve toward the valve disc.

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Номер записи: 14
30-05-2013 дата публикации

Landing gear shock absorber metering using pivoting joint

Номер: US20130134000A1
Автор: James Ning
Принадлежит: Messier Dowty Inc

A metering pin assembly, for use in an aircraft landing gear shock absorber, that is operable to move within the shock absorber, independently of the shock absorber, to respond to movement of the landing gear under subjected load.

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Номер записи: 15
30-05-2013 дата публикации

Damper

Номер: US20130134688A1
Автор: Takahisa Mochizuki, Yuuki Amano
Принадлежит: Kayaba Industry Co Ltd

Damper is provided with damper main body including cylinder, piston being slidably inserted into cylinder to partition interior of cylinder into extension and compression chambers, and piston rod being inserted into cylinder to be coupled to piston, and damping force adjustment mechanism including flow path permitting passage of fluid only during either extension or contraction, valve seat being provided at intermediate position of flow path, valve body being movable back and forth relative to valve seat, and motor driving and moving valve body back and forth relative to valve seat to adjust flow path area of flow path. Damper energizes motor to move valve body distance, which is two-fold or more of distance from separated position where valve body is separated from valve seat to seated position where valve body is seated on valve seat, when flow path is blocked by moving valve body from separated position to seated position.

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Номер записи: 16
01-08-2013 дата публикации

Front fork

Номер: US20130195689A1
Автор: Takahisa Mochizuki
Принадлежит: Kayaba Industry Co Ltd

A front fork includes a body side tube, an axle side tube, a damper, a reservoir, a damping force adjusting flow passage, and a solenoid valve including a spool housing portion provided at an intermediate position of the damping force adjusting flow passage, a spool valve inserted into the spool housing portion movably in an axial direction, and a solenoid that drives the spool valve in an axial direction, and configured to adjust a flow passage area of the damping force adjusting flow passage. Pressure receiving areas on opposite axial sides of the spool valve on which a pressure in an upstream side of the damping force adjusting flow passage acts are made equal. An upper arrangement passage which is arranged at least higher than the upper end of the spool housing portion is provided in a downstream side of the damping force adjusting flow passage.

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Номер записи: 17
05-09-2013 дата публикации

SUSPENSION DAMPER WITH BY-PASS VALVES

Номер: US20130228404A1
Автор: Marking John
Принадлежит: Fox Factory, Inc.

A vehicle damper is described. The vehicle damper includes: a cylinder; a piston within the cylinder; a working fluid within the cylinder; a reservoir in fluid communication with the cylinder via the working fluid, the reservoir operable to receive the working fluid from the cylinder in a compression stroke; a valve in a flow path between the cylinder and the reservoir; and a remotely-operable valve having a position allowing the working fluid to significantly by-pass the valve. 1. A vehicle damper comprising:a cylinder;a piston within said cylinder;a working fluid within said cylinder;a reservoir in fluid communication with said cylinder via said working fluid, said reservoir operable to receive said working fluid from said cylinder in a compression stroke;a valve in a flow path between said cylinder and said reservoir; anda remotely-operable valve having a position allowing said working fluid to significantly by-pass said valve.2. The vehicle damper of claim 1 , wherein said piston comprises:at least one flow path through which said working fluid meters from a first side of said piston to a second side of said piston.3. The vehicle damper of claim 2 , further comprising:at least one shim coupled with said at least one flow path, wherein said at least one shim at least partially obstructs said at least one flow path.4. The vehicle damper of claim 3 , wherein said at least one flow path comprises:a first flow path that is unrestricted, thereby allowing by-pass of said working fluid during said compression stroke.5. The vehicle damper of claim 3 , wherein said at least one flow path comprises:a second flow path that is restricted by said at least one shim, thereby allowing a damping of a flow of said working fluid during said compression stroke.6. The vehicle damper of claim 1 , further comprising: 'a space between said cylinder and an inner wall within said cylinder, wherein said inner wall has a smaller diameter than said cylinder, and wherein said working fluid ...

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Номер записи: 18
26-09-2013 дата публикации

Bicycle fork having lock-out, blow-off, and adjustable blow-off threshold

Номер: US20130249181A1
Автор: Brian Lampman, William H. Becker
Принадлежит: Fox Factory Inc

A bicycle fork includes a pair of fork leg assemblies, each of the leg assemblies having an upper leg telescopingly engaged with a lower leg. A damping assembly is provided in at least one of the legs. The damping assembly includes lock-out and blow-off compression circuits. These compression circuits are externally adjustable without tools. Furthermore, these two compression circuits may be adjusted independently of each other.

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Номер записи: 19
28-11-2013 дата публикации

METHOD AND APPARATUS FOR AN ADJUSTABLE DAMPER

Номер: US20130313056A1
Автор: COX Paul, HAUGEN DAVID M.
Принадлежит: Fox Factory, Inc.

A vehicle suspension damper including: a cylinder; a piston assembly; and an adjuster, wherein the piston assembly compresses fluid as it moves within the cylinder and the adjuster obstructs fluid flow from a first side of a damping piston of the piston assembly to a second side of the damping piston. 1. A vehicle suspension damper comprising:a cylinder;a piston assembly; andan adjuster coupled with said piston assembly, wherein said piston assembly compresses fluid as it moves within said cylinder and said adjuster obstructs fluid flow from a first side of a damping piston of said piston assembly to a second side of said damping piston.2. The vehicle suspension damper of claim 1 , wherein said adjuster comprises: 'at least one passageway there through, wherein when said rotatable valve is in at least one of said first position and said second position, said fluid flow is obstructed in its flow through said at least one passageway and from said first side of said damping piston to said second side of said damping piston.', 'a rotatable valve configured for rotating from a first position to a second position, said rotatable valve comprising3. The vehicle suspension damper of claim 2 , wherein the adjuster further comprises:a damping adjustment lever coupled with said rotatable valve, said damping adjustment lever being movable and configured for, upon movement of said damping adjustment lever, rotating said rotatable valve from said first position to said second position.4. The vehicle suspension damper of claim 3 , wherein said adjuster further comprises:a control rod rotationally fixed to said damping adjustment lever and said rotatable valve, wherein said control rod rotationally responds to said movement of said damping adjustment lever by rotating said rotatable valve in proportion to said movement.5. The vehicle suspension damper of claim 2 , further comprising:a motive source coupled with said rotatable valve, said motive source configured for providing input, ...

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Номер записи: 20
05-12-2013 дата публикации

METHOD AND APPARATUS FOR AN ADJUSTABLE DAMPER

Номер: US20130319805A1
Автор: BECKER William M.
Принадлежит:

An air bleed system for a suspension fork or shock absorber includes: a fluid passage between an interior of the suspension and an exterior of the suspension; and a manually operable valve having a first position substantially closing the fluid passage and a second position allowing fluid flow between the interior and the exterior. 1. An air bleed system for a suspension fork or shock absorber comprising:a fluid passage between an interior of the suspension and an exterior of the suspension; anda manually operable valve having a first position substantially closing said fluid passage and a second position allowing a fluid to flow between said interior and said exterior.2. The air bleed system of claim 1 , wherein said suspension fork or shock absorber comprises:a damper.3. The air bleed system of claim 1 , wherein said fluid comprises:a gas.4. The air bleed system of claim 1 , wherein said fluid comprises:a liquid.5. The air bleed system of claim 1 , wherein said fluid comprises:a combination of a gas and a liquid.6. The air bleed system of claim 1 , wherein said air bleed system is positioned at a distance from an oil bath lubrication within said suspension fork or shock absorber such that when said manually operable valve is in said second position claim 1 , a substantial portion of said oil bath lubrication remains within said suspension fork or shock absorber.7. The air bleed system of claim 6 , wherein said air bleed system is positioned right below a lower leg seal coupled to a lower leg of said suspension fork or shock absorber claim 6 , such that when excessive air pressure in said suspension fork or shock absorber is relieved at high elevation claim 6 , said substantial portion of said oil bath lubrication that is leveled in said lower leg remains within said lower leg.8. The air bleed system of claim 1 , further comprising: an activation position configured for, upon activation, positioning said manually operable valve into said first position; and', 'a ...

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Номер записи: 21
26-12-2013 дата публикации

Damper with variable damping force

Номер: US20130341140A1
Автор: Kiyoshi Nakajima
Принадлежит: Honda Motor Co Ltd

A damper includes: an inner cylinder defining an inner chamber, having a slidable contact piston; an outer cylinder outside the inner cylinder and defining a reservoir chamber between the inner outer cylinders; and a damping-force control device controlling damping force by controlling a flow rate of an operating oil between the inner reservoir chambers. The control device includes a valve seat externally, projecting from the outer cylinder, having an opening for a first communicating channel connected to the inner chamber and an opening for a second communicating channel connected to the reservoir chamber, a valve element opening and closing on the valve seat by electromagnetic force, and a cap defining a variable pressure chamber between the cap and the valve element, and integrally holds the valve element and the valve seat. The variable pressure chamber can be connected to the first and the second communicating channels.

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Номер записи: 22
26-12-2013 дата публикации

ADJUSTABLE DAMPING VALVE ARRANGEMENT

Номер: US20130341142A1
Автор: FÖRSTER Andreas
Принадлежит:

An adjustable damping valve arrangement for a vibration damper comprises an actuator which exerts an actuating force on a multiple-part auxiliary valve body of an auxiliary valve. The auxiliary valve influences a closing force on a main stage valve via an auxiliary valve closing body which is movable axially relative to a shaft portion on the actuator side. During a lift movement, a main stage valve body of the main stage valve compresses a rear space connected to the control space via the auxiliary valve. An auxiliary valve closing spring acts upon the auxiliary valve closing body in closing direction independently from the actuator control, and the rear space has a flow-off channel having a damping valve which generates a damping force during a lift movement of the main stage valve body when the rear space is closed. 1. An adjustable damping valve arrangement for a vibration damper comprising:{'b': 23', '21', '32', '3, 'an auxiliary valve () having a multiple-part auxiliary valve body (); and auxiliary valve seat body () and an auxiliary valve closing spring ();'}{'b': 37', '35', '57, 'a main stage valve () including a main stage valve body () and a control space ();'}{'b': 15', '21', '23', '23', '37', '32', '83', '57', '35', '37', '59', '57', '23', '30', '32', '59', '63', '81', '35', '59, 'an actuator () exerting an actuating force on said multiple-part auxiliary valve body () of said auxiliary valve (), said the auxiliary valve () influencing a closing force on said main stage valve () via said auxiliary valve seat body () which is movable axially relative to a shaft portion () on the actuator side by determining the pressure level in said control space (), wherein said main stage valve body () of said main stage valve () during a lift movement causes compression in a rear space () connected to said control space () via said auxiliary valve (); said auxiliary valve closing spring () acting upon said auxiliary valve seat body () in closing direction independently ...

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Номер записи: 23
26-12-2013 дата публикации

Adjustable Damping Valve Arrangement

Номер: US20130341540A1
Автор: Achim Sauerbrey, Thomas Manger
Принадлежит: ZF FRIEDRICHSHAFEN AG

An adjustable damping valve arrangement comprises an actuator for controlling a main stage valve, wherein the main stage valve has a rigid main stage valve body which carries out an axial operating movement relative to a valve seat surface of the main stage valve, wherein a pre-opening valve having at least one spring element which in turn preloads a pre-opening valve body precedes the main stage valve body, wherein the main stage valve body is supported on the valve seat surface in the closed operating position by the pre-opening valve.

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Номер записи: 24
26-12-2013 дата публикации

Shock absorber for a bicycle

Номер: US20130341843A1
Автор: Juergen Poesel, Martin Walthert, Michael Kieber, Stefan Battlogg
Принадлежит: DT Swiss Inc

Shock absorber for an at least partially muscle-powered bicycle having a damper device having a first and a second damper chamber assigned thereto which are hydraulically coupled with one another through a damping valve. In the damping valve a flow duct with a field-sensitive, rheological medium is provided. The damping valve has a field generating device assigned to it which serves for generating and controlling a field intensity in the flow duct of the damping valve. The flow duct comprises in the damping valve a collection chamber which is hydraulically connected with the first damper chamber through a plurality of flow apertures, wherein at least one flow aperture is configured as a through hole and at least one flow aperture, as a closable valve opening provided with a one-way valve. The collection chamber is hydraulically connected hydraulically with the second damper chamber via a plurality of fan-type damping ducts each separated from one another by a fan wall.

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Номер записи: 25
02-01-2014 дата публикации

Dual range damping system for a shock absorber

Номер: US20140000998A1
Автор: Gunther BISMANS, Mark Nowaczyk
Принадлежит: Tenneco Automotive Operating Co Inc

A shock absorber includes a piston assembly which includes separate flow paths. Each flow path is controlled by a valve assembly and each flow path is in parallel with the other two flow paths. One flow path will generate firm damping characteristics. A second flow path opens depending on either the frequency of the shock absorber movement or the amount of movement or stroke of the shock absorber. The third flow path includes an on/off control valve and generates a soft damping characteristic when the control valve is activated. The soft damping characteristic can be generated by a tunable bleed restriction or by a passive valve assembly.

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Номер записи: 26
16-01-2014 дата публикации

ROTARY DAMPER

Номер: US20140014449A1
Автор: HORITA Naohiro, IGARASHI Yoshiteru, KOJIMA Masamitsu, OKIMURA Akihiko
Принадлежит: OILES CORPORATION

A rotary damper includes a synthetic resin-made accommodating case for accommodating in its interior a viscous fluid which is constituted by silicone oil or the like and whose viscosity declines with a temperature rise, and a synthetic resin-made rotor which is disposed in the interior of the accommodating case rotatably, i.e., so as to be rotatable in R1 and R2 directions about an axis O, and which partitions the interior of the accommodating case into at least two chambers, i.e., in this embodiment, two chambers consisting of chambers and and two chambers consisting of chambers and in cooperation with the accommodating case 1. A rotary damper comprising: an accommodating case for accommodating in its interior a viscous fluid whose viscosity declines with a temperature rise and a rotor which is disposed rotatably in the interior of said accommodating case and which partitions the interior of said accommodating case into at least two chambers in cooperation with said accommodating case ,wherein said rotor has a rotor body which is rotatably supported in said accommodating case and an elastic vane which is provided on an outer peripheral surface of said rotor body,wherein said elastic vane includes a curved projecting surface which is continuously connected at one end to the outer peripheral surface of said rotor body and opposes at another end an inner peripheral surface of said accommodating case, and which forms one of the two chambers in cooperation with the inner peripheral surface of said accommodating case, and a curved recessed surface which is continuously connected at one end to the outer peripheral surface of said rotor body in correspondence with the projecting surface and extends along the projecting surface, and which forms the other one of the two chambers in cooperation with the inner peripheral surface of said accommodating case, andwherein the projecting surface has on its other end side a circular arc-shaped projecting surface which forms between ...

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Номер записи: 27
30-01-2014 дата публикации

REMOTELY OPERATED BYPASS FOR A SUSPENSION DAMPER

Номер: US20140027219A1
Автор: Marking John
Принадлежит:

A damper assembly with a bypass for a vehicle comprises a pressure cylinder with a piston and piston rod for limiting the flow rate of damping fluid as passes from a first to a second side of said piston. A bypass provides fluid pathway between the first and second sides of the piston separately from the flow rare limitation. In one aspect, the bypass is remotely controllable from a passenger compartment of the vehicle. In another aspect, the bypass is remotely controllable based upon one or more variable parameters associated with the vehicle. 1a cylinder and a piston assembly comprising a piston and piston rod;working fluid within said cylinder;a passageway through said piston allowing and limiting a flow rate of the working fluid through the piston in at least one direction;a bypass having fluid pathway between the first and second sides of the piston; anda remotely controllable valve for limiting the flow of fluid through the bypass.. A vehicle suspension damper comprising: This application claims benefit of U.S. provisional patent application Ser. No. 61/296,826, filed Jan. 20, 2010, which is herein incorporated by reference in its entirety, and is also a continuation-in-part of U.S. patent application Ser. No. 12/684,072 filed Jan. 7, 2010, which claims benefit of U.S. provisional patent application No. 61/143,152, filed Jan. 7, 2009, both of which are also incorporated herein in their entirety.1. Field of the InventionEmbodiments of the present invention generally relate to a damper assembly for a vehicle. More specifically, certain embodiments relate to a remotely operated bypass device used in conjunction with a vehicle damper.Vehicle suspension systems typically include a spring component or components and a dampening component or components. Typically, mechanical springs, like helical springs are used with some type of viscous fluid-based dampening mechanism and the two are mounted functionally in parallel. In some instances features of the damper or ...

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Номер записи: 28
13-03-2014 дата публикации

Adjustable rebound buffer

Номер: US20140069754A1
Автор: Andrew M. Wizorek, David J. Holden, Jeffrey L. Peterson
Принадлежит: MSI Defense Solutions LLC

An adjustable rebound buffer includes: an outer perimeter, a central shaft hole and at least one adjustable hole. The outer perimeter is sized to fit inside a buffer cavity of the hydraulic damper. The central shaft hole is sized to fit around a damper shaft and position the adjustable rebound buffer on the damper shaft. The at least one adjustable hole provides an adjustable bleed path through the adjustable rebound buffer. A hydraulic damper with the adjustable rebound buffer includes the buffer cavity, wherein, the outer perimeter of the adjustable rebound buffer is adapted to fit inside the buffer cavity as the hydraulic damper approaches full extension.

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Номер записи: 29
13-03-2014 дата публикации

Suspension system

Номер: US20140069755A1
Автор: Andrew Laird, William Becker
Принадлежит: Fox Factory Inc

A suspension system includes a first suspension member movable relative to a second suspension member, a fluid reservoir having a volume, the volume variable in response to a relative movement between the first and second suspension members, and a fluid flow circuit having a first end in fluidic communication with the fluid reservoir and a second end in fluidic communication with an isolated suspension location, the fluid flow circuit comprising a first valve, a second valve and a third valve, wherein said first and third valves are in parallel with each other and the second valve is in series with each of the first and third valves.

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Номер записи: 30
07-01-2016 дата публикации

SUSPENSION SYSTEM

Номер: US20160001846A1
Автор: Pye Nicholas William
Принадлежит:

A system/assembly for a suspension fork for a bicycle is disclosed. A suspension system for use in a vehicle is also disclosed. A front suspension fork for a bicycle such as a mountain bike configured to contain a hydraulic fluid for fluid flow and in a flow path providing for compression damping and for rebound damping is also disclosed. A damper assembly configured to contain a hydraulic fluid for fluid flow in a flow path is also disclosed. The assembly/system generally comprises a set of inventive concepts/inventions (combination of inventive features) including (but not specifically limited to): (1) an externally-accessible adjustment mechanism; and (2) internal floating piston. The compression assembly/system of the suspension fork comprises a combination of improved functional assemblies including (but not limited to) an adjustment mechanism (e.g with a “travel-adjust” setting) operating through flow control elements; the compression assembly can be adjusted to a “travel adjust” setting (with a reduced stroke length) and either of a “neutral” setting or “descend” setting with progressively less resistance in the fluid flow circuit. The rebound assembly/system of the suspension fork comprises a combination of improved functional assemblies including (but not limited to) an adjustment mechanism; the rebound assembly can be adjusted in a range between a “quick” setting and a “slow” setting (corresponding to relative system response speed in rebound to restore stroke length) operating through flow control elements. 1. A suspension system for use in a vehicle comprising:(a) a damper assembly comprising an internal floating piston assembly configured to operate within a length of travel; and(b) an adjustment mechanism configured to provide a first setting and a second setting for the damper assembly;wherein at the first setting the length of travel is reduced.2. The suspension system of wherein at the second setting wherein the length of travel is not reduced.3. ...

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Номер записи: 31
07-01-2016 дата публикации

METHODS AND APPARATUS FOR COMBINED VARIABLE DAMPING AND VARIABLE SPRING RATE SUSPENSION

Номер: US20160003321A1
Автор: FOX Robert C., HAUGEN DAVID M., WOOTTEN Dennis K., YABLON Joshua Benjamin
Принадлежит: Fox Factory, Inc.

Pressure-sensitive vales are incorporated within a dampening system to permit user-adjustable tuning of a shock absorber. In one embodiment, a pressure-sensitive valve includes an isolated gas chamber having a pressure therein that is settable by a user. 1a cylinder and a piston assembly comprising a piston and piston rod;working fluid within said damper, the damper comprising a compression chamber and a receiving chamber;a pressure-sensitive valve disposed in the damper between the compression chamber and the receiving chamber, the valve including:a first valve surface in communication with a pressurized gas;an opposing valve surface in communication with the working fluid.. A vehicle suspension damper comprising: This application claims priority to and is a continuation of the co-pending patent application, U.S. patent application Ser. No. 14/271,091, filed on May 6, 2014, entitled “METHODS AND APPARATUS FOR COMBINED VARIABLE DAMPING AND VARIABLE SPRING RATE SUSPENSION”, by Dennis K. Wootten et al., Attorney Docket Number FOX-0034US.CON, and assigned to the assignee of the present invention, the disclosure of which is hereby incorporated herein by reference in its entirety.The U.S. patent application Ser. No. 14/271,091 is a continuation of and claims the benefit of U.S. patent application Ser. No. 12/717,867, filed on Mar. 4, 2010, and is now abandoned, entitled “METHODS AND APPARATUS FOR COMBINED VARIABLE DAMPING AND VARIABLE SPRING RATE SUSPENSION” by Dennis K. Wootten et al., with Attorney Docket No. FOXF/0034USP1, and assigned to the assignee of the present application, which is incorporated herein, in its entirety, by reference.The U.S. patent application Ser. No. 12/717,867 claims priority to and benefit of U.S. Provisional Patent Application No. 61/157,541, filed on Mar. 4, 2009, entitled “METHODS AND APPARATUS FOR COMBINED VARIABLE DAMPING AND VARIABLE SPRING RATE SUSPENSION” by Dennis K. Wootten et al., with Attorney Docket No. FOXF/0034L, which is ...

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Номер записи: 32
04-01-2018 дата публикации

COMPENSATOR DEVICE

Номер: US20180003257A1
Автор: Knol Albertus
Принадлежит: IHC Holland IE B.V.

A compensator device includes a hydraulic cylinder with a first end, a second end and an inner cylinder rod extending axially from the second end; and a piston rod with a piston movable axially within the cylinder. The inner cylinder rod has an end with a blocking diameter. The piston rod is generally hollow and includes a cavity to receive the blocking diameter of the inner cylinder rod. 1. A compensator device comprising:a hydraulic cylinder with a first end, a second end and an inner cylinder rod extending axially from the second end, the inner cylinder rod with an end with a blocking diameter; anda piston rod with a piston movable axially within the cylinder, the piston rod being generally hollow and with a cavity to receive the blocking diameter of the inner cylinder rod.2. The compensator device of claim 1 ,wherein a first pressure chamber is formed in the hollow cavity of the piston rod between the piston, the inner cylinder rod and an inner side of the piston rod;wherein a second pressure chamber is formed between an inner side of the cylinder at the second end and the piston; andwherein a third pressure chamber is formed between the inner side of the cylinder at the first end, the outer side of the piston rod and the piston.3. The compensator device of claim 2 , and further comprising:an inlet valve in fluid communication with the first pressure chamber and positioned to be selectively covered by the piston when the piston moves toward the first end of the cylinder;an outlet valve in fluid communication with the first pressure chamber for allowing fluid to exit the first pressure chamber;a fluid passage connecting to the third pressure chamber; anda pressure system to selectively provide pressurized fluid to the first pressure chamber and/or to the third pressure chamber for influencing movement of the piston rod and piston axially with respect to the cylinder.4. The compensator device of claim 3 , wherein the pressure system comprises:a pressure vessel ...

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Номер записи: 33
04-01-2018 дата публикации

Adjustable Damping Valve Device

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

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

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Номер записи: 34
02-01-2020 дата публикации

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

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

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

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Номер записи: 35
02-01-2020 дата публикации

DAMPER

Номер: US20200003272A1
Автор: YAMASHITA MIKIO
Принадлежит:

A damper includes a first passage and a second passage in parallel, a first damping force generation mechanism of the first passage, a case member in which a portion of the second passage is formed, an annular disc disposed to face a bottom part in the case member to be able to be bent by a working fluid in the case member, a first chamber communicating with a first cylinder chamber and a second chamber communicating with a second cylinder chamber which are provided by the disc partitioning the inside of the case member, a first through hole provided in the bottom part of the case member to communicate with the second chamber, a bypass passage provided in parallel to the first through hole and configured to allow communication between the first chamber and the second cylinder chamber, and a second damping force generation mechanism provided in the bypass passage. 1. A damper , comprising:a cylinder in which a working fluid is sealed;a piston slidably fitted into the cylinder and configured to partition an inside of the cylinder into a first cylinder chamber and a second cylinder chamber;a piston rod in which one end side is connected to the piston and an other end side extends to an outside of the cylinder;a first passage in which the working fluid flows out from one of the cylinder chambers due to movement of the piston;a second passage provided in parallel to the first passage;a first damping force generation mechanism provided in the first passage to generate a damping force;an annular case member having a bottomed cylindrical shape which penetrates a shaft-shaped member and has at least a portion of the second passage formed inside;an annular disc which penetrates the shaft-shaped member and is disposed to face a bottom part of the case member in the case member to be able to be bent by the working fluid in the case member;a first chamber communicating with the first cylinder chamber and a second chamber communicating with the second cylinder chamber which are ...

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Номер записи: 36
07-01-2021 дата публикации

Damper With Side Collector And External Control Valves

Номер: US20210003190A1
Автор: Deferme Stefan
Принадлежит:

A damper with inner and outer tubes and a piston slidably disposed within the inner tube to define first and second working chambers. A fluid transport chamber is positioned between the inner and outer tubes. A collector chamber is positioned outside the outer tube. An intake valve assembly, abutting one end of the inner tube, includes first and second intake valve bodies and a divider body, which define first and second intermediate chambers in the intake valve assembly. An accumulation chamber is positioned between the intake valve assembly and a closed end of the outer tube. The first intermediate chamber and accumulation chamber are arranged in fluid communication with the collector chamber. A first intake valve controls fluid flow between the second working chamber and the collector chamber. A second intake valve controls fluid flow between the second intermediate chamber and the collector chamber. 1. A damper comprising:an inner tube extending longitudinally between a first inner tube end and a second inner tube end;a piston slidably disposed within the inner tube defining a first working chamber and a second working chamber;an outer tube disposed around the inner tube, the first working chamber arranged in fluid communication with a fluid transport chamber disposed between the inner tube and the outer tube;a collector chamber positioned outside of the outer tube;an intake valve assembly positioned within the outer tube to define an accumulation chamber arranged in fluid communication with the collector chamber, the intake valve assembly including a first intermediate chamber disposed in fluid communication with the collector chamber and the accumulation chamber, a second intermediate chamber disposed in fluid communication with the second working chamber, and a first intake valve that controls fluid flow through the intake valve assembly between the first intermediate chamber and the fluid transport chamber;a first control valve externally mounted to the ...

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Номер записи: 37
07-01-2021 дата публикации

SHOCK ABSORBER DEVICE HAVING STRUCTURE FOR CONSTANT-SPEED OPERATION

Номер: US20210003191A1
Автор: YOON Doo Young
Принадлежит:

Disclosed herein is a shock absorber device having a structure for constant-speed operation. The shock absorber device having a structure for constant-speed operation includes: a body configured such that an inner cylinder having a plurality of orifices is concentrically accommodated inside an outer cylinder and a piston rod and a spring are connected to a piston that slides in the inner cylinder; an accumulator disposed in a flow passage communicating with the orifices and configured to damp a working fluid; and an adjusting means configured to adjust absorbing force and repelling force to a set range via the piston rod. A connection rod is angle-adjustably provided at at least one end of the body, and the connection rod is connected via a worm gear and an adjusting bolt. 1. A shock absorber device having a structure for constant-speed operation , the shock absorber device comprising:a body configured such that an inner cylinder having a plurality of orifices is concentrically accommodated inside an outer cylinder and a piston rod and a spring are connected to a piston that slides in the inner cylinder;an accumulator disposed in a flow passage communicating with the orifices and configured to damp a working fluid; andan adjusting means configured to adjust absorbing force and repelling force to a set range via the piston rod;wherein a connection rod is angle-adjustably provided at at least one end of the body, and the connection rod is connected via a worm gear and an adjusting bolt.2. The shock absorber device of claim 1 ,wherein the body is configured such that diameters of the orifices are different from each other.3. The shock absorber device of claim 1 ,wherein the working fluid accommodated in the body includes gas and oil that are used simultaneously.4. The shock absorber device of claim 1 ,wherein the accumulator comprises a micro-actuator in order to adjust pressure in response to an external electrical signal.5. The shock absorber device of claim 1 , ...

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Номер записи: 38
13-01-2022 дата публикации

Shock absorber for a vehicle

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

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

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Номер записи: 39
12-01-2017 дата публикации

VEHICLE SHOCK ABSORBER SYSTEM AND ACCESSORY THEREOF

Номер: US20170008364A1
Автор: KAMIL Ami, MINI Izik
Принадлежит: REGO VEHICLES LTD.

A vehicle shock absorber system configured with more than one pressure cylinder that provides advantageous damping characteristics for different loads. There is provided a vehicle shock absorber system having a primary pressure cylinder including upper and lower primary chambers separated by a primary piston head, an auxiliary pressure cylinder including upper and lower auxiliary chambers separated by an auxiliary piston head, a first connection conduit connecting the upper primary chamber and the upper auxiliary chamber, a second connection conduit connecting the lower primary chamber and the lower auxiliary chamber, and a cylinder valve arrangement configured to regulate fluid flow to the auxiliary pressure cylinder. 1. A vehicle shock absorber system mounted between a wheel axle support of the vehicle and a different portion of the vehicle , comprising:a primary pressure cylinder comprising upper and lower primary chambers separated by a primary piston head, wherein said primary piston head is connected to said wheel axle support of the vehicle, and said primary pressure cylinder is connected to said different portion of the vehicle;an auxiliary pressure cylinder comprising upper and lower auxiliary chambers separated by an auxiliary piston head;a first connection conduit connecting said upper primary chamber and said upper auxiliary chamber;a second connection conduit connecting said lower primary chamber and said lower auxiliary chamber; anda cylinder valve arrangement configured to regulate fluid flow to said auxiliary pressure cylinder.2. The vehicle shock absorber system according to claim 1 , wherein said cylinder valve arrangement comprises a first valve located in said first connection conduit and/or a second valve located in said second connection conduit.3. The vehicle shock absorber system according to claim 1 , further comprising a bypass conduit connecting said upper and lower primary chambers.4. The vehicle shock absorber system according to claim 3 ...

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Номер записи: 40
12-01-2017 дата публикации

Vibration Damper Having An End Stop

Номер: US20170009840A1
Автор: HERTZ Wolfgang
Принадлежит:

Vibration damper with an end stop operated through a damping medium, includes a cylinder in which a piston rod is guided so as to be axially movable, wherein the piston rod controls a choke ring which limits a compression space starting from a defined stroke position of the piston rod at a cylinder-side wall having reduced diameter, wherein the cylinder has at least one working chamber which is filled with the damping medium and which is connected to the compression space via at least one choke orifice, wherein the choke ring has at least one pressure compensation channel via which a surface of the choke ring facing in direction of the wall on the cylinder side is connected to compression space with respect to the cross section of the choke ring, and the outflow from the pressure compensation channel to the working chamber can be closed in a stroke-dependent manner. 17-. (canceled)8115. A vibration damper () with an end stop () operated through a damping medium , comprising:{'b': 3', '19, 'a cylinder () including a side wall () having a reduced diameter;'}{'b': 5', '3, 'a piston rod () guided so as to be axially movable within said cylinder ();'}{'b': 17', '37', '5', '21', '5', '19, 'a choke ring () having at least one choke orifice () and being controlled by said piston rod () for limiting a compression space () starting from a defined stroke position of said piston rod () at said reduced diameter cylinder-side wall ();'}{'b': 3', '9', '11', '21', '37', '17', '43', '19', '41', '57', '43', '21', '17', '41, 'said cylinder () having at least one working chamber (; ) filled with the damping medium and connected to the compression space () via the at least one choke orifice (); said choke ring () having an outer surface () facing said side wall () and at least one pressure compensation channel (, ) connecting said outer surface () to the compression space () with respect to a cross-section of said choke ring (); and wherein an outflow from said pressure compensation ...

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Номер записи: 41
27-01-2022 дата публикации

Active valve customizable tune application

Номер: US20220025954A1
Автор: Andrew DIAO, Evan Peterson, Everet Owen Ericksen, James T. PICKETT, Mike FRAGUGLIA
Принадлежит: Fox Factory Inc

A system and method for utilizing an active valve customizable tune application is disclosed. The system initiates an active valve tune application. Receive a suspension tune for a vehicle, the suspension tune comprising a number of performance range adjustable settings. Presents the suspension tune within the active valve tune application on the display. Receive input to modify, at the active valve tune application, one or more of the number of performance range adjustable settings. Generates a modified suspension tune based on the modification input.

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Номер записи: 42
14-01-2016 дата публикации

Shock absorber

Номер: US20160010715A1
Автор: Umi TANABE
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

A space between an inner surface of a cover and a housing is set to be wider on a spaced-apart side from a cylinder than on a cylinder side. Therefore, the cover is generally integrated with the housing at the moment that the cylinder side abuts against the housing, which can improve a stiffness. This can prevent the cover from contacting a solenoid located on the spaced-apart side of the housing that is spaced apart from the cylinder.

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Номер записи: 43
14-01-2016 дата публикации

SHOCK ABSORBER

Номер: US20160010716A1
Автор: IYODA Ikuhide, KEIDA Tatsuya, Kondo Kazunori, KUROKOUCHI Takashi, Tabata Masaaki, TANABE Umi
Принадлежит:

A foreign object discharge hole is provided at a position that is located on a lowermost side of the cover when a shock absorber is in a mounted state, and a size of the foreign object discharge hole is set to be similar to or larger than a size of a space between an outlet port and a harness. This can ensure that a foreign object introduced into the cover is discharged out of the cover via the foreign object discharge hole. 1. A damping force adjustable shock absorber configured to be mounted between relatively movable two members , the damping force adjustable shock absorber comprising:a cylinder sealingly containing hydraulic fluid;a piston disposed in the cylinder;a piston rod coupled to the piston and extending out of the cylinder;a damping force adjustment mechanism disposed in a housing that protrudes from a side of the cylinder; anda cover that at least partially covers an outer peripheral portion of the housing,wherein the damping force adjustment mechanism includes a solenoid, and a harness for supplying power to the solenoid from outside, andwherein the cover includes an outlet port for taking out the harness, and a foreign object discharge hole provided at a position that is located on a lower side when the shock absorber is in a mounted state, and a size of the foreign object discharge hole is substantially the same as or larger than a size of a space between the outlet port and the harness.2. The shock absorber according to claim 1 , wherein the provision of the foreign object discharge hole to the cover heightens a lowermost position of the cover with the shock absorber mounted on a vehicle body.3. The shock absorber according to claim 1 , wherein the cover has a bottomed cylindrical shape having an opening portion and a bottom portion claim 1 , and a folded-back portion is formed at the outlet port by folding back the opening portion outwardly.4. The shock absorber according to claim 2 , wherein the cover has a bottomed cylindrical shape having an ...

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Номер записи: 44
11-01-2018 дата публикации

LATERAL SUPPORT ELEMENTS, GAS SPRING ASSEMBLIES, SUSPENSION SYSTEMS AND METHODS

Номер: US20180010664A1
Автор: Byron Matthew F., Leonard Joshua R.
Принадлежит: Firesstone Industrial Products Company, LLC

Lateral support elements include an element wall with an exterior surface dimensioned to abuttingly engage an associated flexible wall and an interior surface that at least partially defines an element chamber within the lateral supporting element. Gas spring assemblies include a flexible spring member that at least partially defines a spring chamber. The lateral support element is disposed along and operatively connected to the flexible spring member. The element chamber can, optionally and in some cases, be disposed in fluid communication with the spring chamber. The gas spring assembly can include one or more end members operatively connected to the flexible spring member. Suspension systems and methods of assembly are also included. 1. A gas spring assembly comprising:a flexible wall having a longitudinal axis and extending peripherally about said longitudinal axis between a first end and a second end spaced longitudinally from said first end, said flexible wall including an inner surface and an outer surface with said inner surface at least partially defining a spring chamber; and,a lateral support element including an element wall with an exterior surface disposed in abutting engagement with said flexible wall and an interior surface at least partially defining an element chamber within said lateral support element.2. A gas spring assembly according to claim 1 , wherein said gas spring assembly is laterally displaceable between a neutral position and a laterally-offset position such that in said neutral position said second end of said flexible wall and said lateral support element are disposed approximately coaxial alignment with one another and in said laterally-offset position said second end of said flexible wall and said lateral support element are disposed in laterally-spaced apart relation to one another.3. A gas spring assembly according to claim 2 , wherein a portion of an annular area of said outer surface of said flexible wall is disposed in ...

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Номер записи: 45
11-01-2018 дата публикации

REMOTELY OPERATED BYPASS FOR A SUSPENSION DAMPER

Номер: US20180010666A1
Автор: Marking John
Принадлежит: Fox Factory, Inc.

A damper assembly with a bypass for a vehicle comprises a pressure cylinder with a piston and piston rod for limiting the flow rate of damping fluid as it passes from a first to a second side of said piston. A bypass provides a fluid pathway between the first and second sides of the piston separately from the flow rare limitation. In one aspect, the bypass is remotely controllable from a passenger compartment of the vehicle. In another aspect, the bypass is remotely controllable based upon one or more variable parameters associated with the vehicle. 1. A vehicle suspension damper comprising:a damper cylinder;a damping fluid disposed within said damper cylinder; a piston having a flow path formed through said piston;', 'a shim disposed to meter a flow of said damping fluid through said flow path; and', 'a piston rod coupled to said piston; and, 'a piston assembly disposed within said damper cylinder, said piston assembly comprising a remotely controllable valve for controlling the flow of said damping fluid through said bypass assembly, said remotely controllable valve controlled by an operator-actuated switch located in a passenger compartment of a vehicle to which said vehicle suspension damper is coupled, and', 'a pneumatic input providing activating pressure to adjust the remotely controllable valve between an open position, a lock-out position, and an intermediate position between the open position and the lock-out position., 'a bypass assembly providing a fluid pathway between a first side of said piston and a second side of said piston, said bypass assembly comprising2. The vehicle suspension damper of wherein the remotely controllable valve further comprising: 'the closing member comprising a moveable piston;', 'a closing member,'} 'the seating member selectively positionable with respect to the moveable piston; and', 'a seating member,'}a biasing element interposed between the moveable piston and the seating member to bias the seating member in a direction ...

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Номер записи: 46
14-01-2021 дата публикации

SUSPENSION SYSTEM

Номер: US20210010556A1
Автор: BECKER William M., Laird Andrew
Принадлежит: Fox Factory, Inc.

A suspension system includes a first suspension member movable relative to a second suspension member, a fluid reservoir having a volume, the volume variable in response to a relative movement between the first and second suspension members, and a fluid flow circuit having a first end in fluidic communication with the fluid reservoir and a second end in fluidic communication with an isolated suspension location, the fluid flow circuit comprising a first valve, a second valve and a third valve, wherein said first and third valves are in parallel with each other and the second valve is in series with each of the first and third valves. 1a first suspension member movable relative to a second suspension member, said first suspension member and said second suspension member comprising a first fork leg;a third suspension member movable relative to a fourth suspension member, said third suspension member and said fourth suspension member comprising a second fork leg;a first spring disposed in said first fork leg;a second spring disposed in said second fork leg;a fluid reservoir having a volume, said volume variable in response to a relative movement between said first suspension member and said second suspension member;a fluid flow circuit disposed in said first fork leg, said fluid flow circuit having a first end in fluidic communication with said fluid reservoir and a second end in fluidic communication with an isolated suspension location;a damper cap assembly coupled to said first fork leg;a preload adjuster assembly coupled to said second fork leg;a first spacer disposed in said first fork leg; anda second spacer disposed in said second fork leg.. A suspension system comprising: This application is a continuation application of and claims the benefit of co-pending U.S. patent application Ser. No. 16/243,911 filed on Jan. 9, 2019, entitled “SUSPENSION SYSTEM” by Andrew Laird, having Attorney Docket No. FOX-P10-12-09-US.CON3, which is incorporated herein, in its ...

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Номер записи: 47
14-01-2021 дата публикации

Valve device and shock absorber

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

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

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Номер записи: 48
14-01-2021 дата публикации

DAMPER WITH HYDRAULIC END STOP

Номер: US20210010559A1
Автор: Kar Nirupam, Oliveira Diego Alves de, Roessle Matthew, Schelosky Matthew Ryan
Принадлежит:

A damper includes a pressure tube and a piston. The piston defines a rebound chamber and a compression chamber. The damper further includes a piston rod that reciprocates with the piston. The damper includes a sealing ring slidably disposed around the piston rod. The sealing ring includes a locking mechanism adapted to lock the sealing ring around the piston rod. The sealing ring also includes an inner surface having a plurality of concave surfaces and a plurality of convex surfaces. Each of the plurality of concave surfaces is located adjacent to a corresponding convex surface of the plurality of convex surfaces. The sealing ring further includes an upper surface extending between the outer and inner surfaces. The upper surface defines a plurality of channels. The sealing ring further includes grooves and bleeds for tuning energy dissipated by the damper during rebound stroke to help reduction of noise. 1. A damper comprising:a pressure tube defining a first end and a second end opposite to the first end;a piston slidably disposed within the pressure tube, the piston defining a rebound chamber and a compression chamber within the pressure tube;a piston rod adapted to reciprocate with the piston, wherein the piston rod is partially received within the pressure tube; and an inner surface facing the piston rod, the inner surface including a plurality of concave surfaces and a plurality of convex surfaces, each of the plurality of concave surfaces being located adjacent to a corresponding convex surface of the plurality of convex surfaces;', 'and outer surface disposed opposite the inner surface, and', 'an upper surface extending between the outer and inner surfaces, the upper surface defining a plurality of channels., 'a sealing ring slidably disposed around the piston rod, the sealing ring including2. The damper of claim 1 , wherein the sealing ring includes an outer surface opposite to the inner surface claim 1 , the outer surface defining at least one groove.3. The ...

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Номер записи: 49
10-01-2019 дата публикации

DUAL-STAGE, SEPARATED GAS/FLUID SHOCK STRUT SERVICING

Номер: US20190011009A1
Автор: Cepic Adnan, Fazeli Amir, Reber Susanne M.
Принадлежит: GOODRICH CORPORATION

A method for servicing a dual-stage, separated gas/fluid shock strut may comprise measuring a servicing temperature, charging a secondary gas chamber with compressed gas, wherein a secondary chamber pressure corresponds to the servicing temperature, pumping oil into the shock strut, and charging a primary gas chamber with compressed gas. 1. A method for servicing a dual-stage , separated gas/fluid shock strut , comprising:measuring a servicing temperature;charging a secondary gas chamber with a first quantity of compressed gas, wherein a secondary chamber pressure corresponds to the servicing temperature;pumping an oil into the dual-stage, separated gas/fluid shock strut; andcharging a primary gas chamber with a second quantity of compressed gas.2. The method of claim 1 , wherein the secondary gas chamber is charged with the second quantity of compressed gas until the secondary chamber pressure corresponds to the servicing temperature as indicated by a secondary chamber servicing chart.3. The method of claim 1 , further comprising extending the dual-stage claim 1 , separated gas/fluid shock strut in response to the pumping claim 1 , wherein the dual-stage claim 1 , separated gas/fluid shock strut extends such that a shock strut extension and the secondary chamber pressure match an oil servicing reference curve.4. The method of claim 1 , further comprising:extending the dual-stage, separated gas/fluid shock strut to a shock strut extension corresponding to the secondary chamber pressure, in accordance with an oil servicing reference curve, wherein the oil is pumped into the dual-stage, separated gas/fluid shock strut to a pre-determined pressure.5. The method of claim 3 , wherein the oil servicing reference curve is provided in the form of at least one of a series of curves or a series of tables for various servicing temperatures.6. The method of claim 1 , wherein the primary gas chamber is charged with the second quantity of compressed gas until a primary chamber ...

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Номер записи: 50
09-01-2020 дата публикации

DAMPER WITH DUAL SPRINGS

Номер: US20200011395A1
Автор: Sankaran Shivanand, Weglorz Wojciech
Принадлежит:

A damper includes a pressure tube and a piston defining a rebound chamber and a compression chamber within the pressure tube. The damper further includes an adapter attached to the pressure tube. The damper includes a retainer slidably disposed within the pressure tube. The retainer and the adapter define an end chamber therebetween within the pressure tube. The damper also includes a cup movably disposed within the pressure tube between the retainer and the adapter. The damper further includes a tubular member disposed adjacent to the cup and attached to the adapter. The tubular member includes at least one through aperture. The damper includes a base valve attached to the adapter. The damper also includes a first spring disposed between the retainer and the cup and a second spring disposed between cup and the adapter. 1. A damper comprising:a pressure tube defining a first end and a second end opposite to the first end;a piston slidably disposed within the pressure tube, the piston defining a rebound chamber and a compression chamber within the pressure tube;an adapter attached to the pressure tube at the second end;a retainer slidably disposed within the pressure tube proximal to the second end, the retainer comprising a retainer opening therethrough, wherein the retainer and the adapter define an end chamber therebetween within the pressure tube, and wherein the retainer opening fluidly communicates the end chamber with the compression chamber;a cup movably disposed within the pressure tube between the retainer and the adapter, the cup comprising a cup opening therethrough, wherein the cup opening fluidly communicates the cup with the end chamber;a tubular member disposed adjacent to the cup and attached to the adapter, the tubular member comprising a first open end disposed in fluid communication with the cup, a second open end opposite to the first open end, and at least one through aperture disposed between the first open end and the second open end, wherein ...

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Номер записи: 51
15-01-2015 дата публикации

Damper Assemblies

Номер: US20150014107A1
Автор: David Pecar, Kozlovic Danijel, Svara Valter
Принадлежит:

A damper assembly comprises a piston and cylinder type damper with a piston () mounted for reciprocal movement in a cylinder () containing damping fluid. The piston () is acted on by a piston rod () which comprises a reaction surface for engaging the piston. The cross-sectional area of the reaction surface is designed to be significantly greater than the cross-sectional area of the piston rod () in order to spread the load exerted on the piston (). Also, the piston () is designed to engage the piston rod () at its inner end in a manner that provides lateral guidance for the inner end of the piston rod in its movement in the cylinder (). 1. A damper assembly comprising a piston and cylinder type damper with a piston mounted for reciprocal movement in a cylinder containing damping fluid , with the piston being acted upon by a piston rod , wherein the piston rod comprises a reaction surface for engaging the piston , with the cross-sectional area of the reaction surface being significantly greater than the cross-sectional area of the piston rod in order to spread the load exerted on the piston , and wherein the piston engages the piston rod at an inner end thereof in a manner to provide lateral guidance for the inner end of the piston rod in its movement in the cylinder.2. A damper assembly as claimed in wherein the piston is made of plastics material and the reaction surface is made of metal.3. A damper assembly as claimed in wherein the reaction surface is provided by a collar attached to or formed on the piston rod.4. A damper assembly as claimed in wherein the piston is engaged by the inner end of the piston rod and the collar is spaced axially therefrom.5. A damper assembly as claimed in wherein the piston has a hole therethrough for passage of damping fluid.6. A damper assembly as claimed in wherein the hole in the piston is partly occluded by the piston rod or a part connected thereto claim 5 , with the gap therebetween defining a pathway for the passage of ...

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Номер записи: 52
10-01-2019 дата публикации

DUAL-STAGE, SEPARATED GAS/FLUID SHOCK STRUT SERVICING MONITORING SYSTEM USING TWO PRESSURE/TEMPERATURE SENSORS

Номер: US20190012848A1
Автор: Cepic Adnan, Fazeli Amir, Reber Susanne M.
Принадлежит: GOODRICH CORPORATION

A monitoring system for a dual-stage, separated gas/fluid shock strut may comprise a controller and a tangible, non-transitory memory configured to communicate with the controller. The tangible, non-transitory memory may have instructions stored thereon that, in response to execution by the controller, cause the controller to perform various operations. Said operations may include determining, by the controller, a shock strut stroke at which a secondary chamber of the shock strut is activated, calculating, by the controller, a volume of oil in an oil chamber of the shock strut, calculating, by the controller, a volume of gas in a primary chamber of the shock strut, and calculating, by the controller, a volume of oil leaked into the primary chamber of the shock strut. 1. A monitoring system for a dual-stage , separated gas/fluid shock strut , comprising:a controller; anda tangible, non-transitory memory configured to communicate with the controller, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising:receiving, by the controller, a primary chamber temperature sensor reading from a first sensor installed on a primary chamber of the dual-stage, separated gas/fluid shock strut;receiving, by the controller, a primary chamber pressure sensor reading from at least one of the first sensor and a second sensor installed on the primary chamber of the dual-stage, separated gas/fluid shock strut;receiving, by the controller, a secondary chamber pressure sensor reading from a third sensor installed on a secondary chamber of the dual-stage, separated gas/fluid shock strut;receiving, by the controller, a shock strut stroke sensor reading from a stroke sensor;determining, by the controller, a shock strut stroke at which the secondary chamber of the shock strut is activated, wherein the shock strut stroke is determined in response to a strut piston moving with ...

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Номер записи: 53
10-01-2019 дата публикации

DUAL-STAGE, SEPARATED GAS/FLUID SHOCK STRUT SERVICING MONITORING SYSTEM USING ONE PRESSURE/TEMPERATURE SENSOR

Номер: US20190012849A1
Автор: Cepic Adnan, Fazeli Amir, Reber Susanne M.
Принадлежит: GOODRICH CORPORATION

A monitoring system for a dual-stage, separated gas/fluid shock strut may comprise a controller and a tangible, non-transitory memory configured to communicate with the controller. The tangible, non-transitory memory may have instructions stored thereon that, in response to execution by the controller, cause the controller to perform various operations. Said operations may include calculating, by the controller, a secondary chamber nominal pressure, determining, by the controller, a shock strut stroke associated with the secondary chamber nominal pressure, calculating, by the controller, a volume of oil in an oil chamber of the shock strut, calculating, by the controller, a volume of gas in a primary chamber of the shock strut, calculating, by the controller, a secondary chamber inflation pressure, and calculating, by the controller, a volume of oil leaked into the primary chamber of the shock strut. 1. A monitoring system for a dual-stage , separated gas/fluid shock strut , comprising: a tangible, non-transitory memory configured to communicate with the controller, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising:', 'receiving, by the controller, a primary chamber temperature sensor reading from a temperature sensor installed on a primary chamber of the dual-stage, separated gas/fluid shock strut;', 'receiving, by the controller, a primary chamber pressure sensor reading from a pressure sensor installed on the primary chamber of the dual-stage, separated gas/fluid shock strut;', 'receiving, by the controller, a shock strut stroke sensor reading from a stroke sensor;', 'calculating, by the controller, a secondary chamber nominal pressure based upon the primary chamber temperature sensor reading;', 'determining, by the controller, a shock strut stroke associated with the secondary chamber nominal pressure;', 'calculating, by the controller, a ...

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Номер записи: 54
03-02-2022 дата публикации

AIR SPRING

Номер: US20220034381A1
Автор: Lee Sang Tae
Принадлежит:

An air spring may include a first end member and a second end member spaced from each other; a flexible bellows having a first end portion airtightly coupled to the first end member, a second end portion airtightly coupled to the second end member, and a jacket mounted on the circumference of the flexible bellows and configured to support the flexible bellows. 1. An air spring apparatus comprising:a first end member and a second end member spaced from each other;a flexible bellows having a first end portion airtightly coupled to the first end member, a second end portion airtightly coupled to the second end member, a fluid chamber formed in the flexible bellows, and a motion portion, wherein the flexible bellows disposed between the first end member and the second end member is extendable further than the second end member so that a length of the flexible bellows is longer than a distance between the first end member and the second end member, and is bent to the second end member to be coupled to the second end member to form the motion portion; anda jacket mounted on a circumference of the flexible bellows and configured to support the flexible bellows, inner cords formed in the flexible bellows at a side of the fluid chamber; and', 'external cords formed outward than the internal cords in the flexible bellows,, 'wherein the flexible bellows includeswherein the internal cords and the external cord are aligned to extend in parallel to each other in the flexible bellows other than the motion portion, andwherein in the motion portion, the internal cords are aligned to obliquely extend in internal cords are aligned to obliquely extend in a first direction and the external cords are aligned to obliquely extend in a second direction which is a direction opposite to the first direction.2. The air spring apparatus of claim 1 , wherein the first end member is an end cap configured to be connected to a vehicle body.3. The air spring apparatus of claim 1 , wherein the second ...

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Номер записи: 55
03-02-2022 дата публикации

PROPORTIONAL VALVE

Номер: US20220034410A1
Автор: Bürßner Jörg, Vincon Peter
Принадлежит: ETO MAGNETIC GMBH

An electromagnetic and pilot-operated proportional valve with a valve slide unit () mounted in a valve housing () so as to be movable along an axial direction, which unit can be driven by an electromagnetic actuator assembly () provided at one axial end for the pilot-operated opening of a useful fluid inlet and/or outlet () of the valve housing as a response to energisation of a stationary coil () of the actuator assembly and interacts with mechanical force storage means (), more particularly is held in an unenergised stable axial position in the valve housing by said means, wherein the valve slide unit having a closure section () extending radially from one body section () of the valve slide unit () for sealing interaction with the useful fluid inlet or outlet () formed on a circumferential inner wall of the housing () interacts axially at one end, by means of the preferably cylindrical and/or coaxially extending body section (), with a stationary guide section () of the valve housing to form an axial sliding bearing () and, at the other end, is mounted with radial play (), wherein preferably ring-shaped sealing means () seal a circumferential section of the body section with radial play to the circumferential inner wall of the valve housing. 11210. An electromagnetically and pilot-operated proportional valve having a valve slide unit () mounted in a valve housing () so as to be movable along an axial direction ,{'b': 12', '16', '24, 'the valve slide unit () being drivable by an electromagnetic actuator assembly () provided at one axial end for the pilot-operated opening of a useful fluid inlet and/or outlet () of the valve housing in response to an energization of stationary coil means of the actuator assembly'}{'b': 48', '50, 'and interacting with mechanical force storage means (, )'}wherein{'b': 22', '30', '12', '24', '10', '40', '30, 'the valve slide unit which has a closure section () which extends in the radial direction from a body section () of the valve ...

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Номер записи: 56
19-01-2017 дата публикации

CYLINDER DEVICE

Номер: US20170016505A1
Автор: Funato Hiroshi
Принадлежит: KYB Corporation

A cylinder device includes a piston rod that is inserted into a cylinder so as to be movable back and forth. The piston rod has a rod portion that extends outside the cylinder, and a piston connected to an end portion of the rod portion, the piston moving in the cylinder in a slidable manner. The rod portion has a rod inner space formed in the rod portion, the rod inner space communicating with the piston-side chamber of the cylinder, a first communicating passage that connects the rod inner space and the rod-side chamber of the cylinder, and an orifice plug provided in the first communicating passage in a changeable manner. The piston is connected to the rod portion so as to cover a part of the orifice plug. 1. A cylinder device comprising a cylinder and a piston rod that is inserted into the cylinder so as to be movable back and forth , wherein a rod portion that extends outside the cylinder; and', 'a piston connected to an end portion of the rod portion, the piston moving in the cylinder in a slidable manner and partitioning an interior of the cylinder into a piston-side chamber and a rod-side chamber;, 'the piston rod has a rod inner space formed in the rod portion, the rod inner space communicating with the piston-side chamber of the cylinder;', 'a first communicating passage that connects the rod inner space and the rod-side chamber of the cylinder; and', 'an orifice plug provided in the first communicating passage in a changeable manner; and, 'the rod portion hasthe piston is connected to the rod portion so as to cover a part of the orifice plug.2. The cylinder device according to claim 1 , further comprisinga second communicating passage that connects the rod inner space and the rod-side chamber of the cylinder anda check valve provided in the second communicating passage, the check valve being configured to allow a flow of working fluid only from the rod inner space to the rod-side chamber, whereinthe piston is connected to the rod portion so as to cover a ...

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Номер записи: 57
21-01-2021 дата публикации

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

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

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

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Номер записи: 58
17-04-2014 дата публикации

Damper with digital valve

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

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

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Номер записи: 59
21-01-2021 дата публикации

DAMPER WITH DUAL PISTONS

Номер: US20210018059A1
Автор: Sankaran Shivanand
Принадлежит:

A damper includes a pressure tube defining a first end and a second end opposite to the first end. The pressure tube includes a primary section extending from the first end and a reduced-diameter section extending from the second end. The damper includes a primary piston slidably disposed within the pressure tube. The primary piston defines a rebound chamber and a compression chamber within the pressure tube. The damper further includes a secondary piston movable with the primary piston. The damper includes a sleeve connected to the pressure tube and surrounding the reduced-diameter section. The damper also includes a base valve. The pressure tube and the sleeve define an intermediate chamber therebetween. The pressure tube further defines at least one tube opening to fluidly communicate the compression chamber with the intermediate chamber. 1. A damper comprising:a pressure tube defining a first end and a second end opposite to the first end, the pressure tube comprising a primary section extending from the first end and a reduced-diameter section extending from the second end, wherein a diameter of the reduced-diameter section is less than a diameter of the primary section;a primary piston slidably disposed within the pressure tube, the primary piston defining a rebound chamber and a compression chamber within the pressure tube;a secondary piston movable with the primary piston, wherein a diameter of the secondary piston is less than a diameter of the primary piston, and wherein the secondary piston is slidable within the reduced-diameter section;a sleeve connected to the pressure tube and surrounding the reduced-diameter section, the sleeve defining a first sleeve end disposed proximal to the pressure tube and a second sleeve end opposite to the first sleeve end; anda base valve disposed at the second sleeve end,wherein the pressure tube and the sleeve define an intermediate chamber therebetween, and wherein the pressure tube further defines at least one tube ...

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Номер записи: 60
21-01-2021 дата публикации

VALVE MECHANISM AND SHOCK ABSORBER

Номер: US20210018060A1
Автор: FUJIKAWA Yosuke, Murakami Yosuke
Принадлежит: Showa Corporation

A valve mechanism includes: a cylindrical body; a plurality of valve bodies; and a drive valve. The drive valve includes a shaft portion having a flow path penetrating in the axial direction, and a first step portion extending from an outer peripheral surface of the shaft portion to a radial outside of the shaft portion. The shaft portion has a protrusion portion protruding further toward the cylindrical body side than the first step portion and a base portion extending to a side opposite to the protrusion portion with respect to the first step portion. A gap between the valve bodies is changed by elastically deforming an inner peripheral portion of the valve body, which comes into contact with the drive valve moved in a direction approaching the valve body, in a direction approaching the cylindrical body with respect to an outer peripheral portion of the valve body. 1. A valve mechanism , comprising:a cylindrical body having a hollow portion penetrating in an axial direction;a plurality of valve bodies including a first valve body having a through-hole penetrating in the axial direction and being arranged to be in contact with an axial end surface of the cylindrical body; anda drive valve arranged movably in the axial direction and disposed on a side opposite to the cylindrical body with respect to the plurality of valve bodies, whereinthe drive valve includes,a shaft portion having therein a flow path penetrating in the axial direction, anda first step portion extending from an outer peripheral surface of the shaft portion to a radial outside of the shaft portion and a second step portion,the shaft portion has a protrusion portion protruding further toward the cylindrical body side than the first step portion and a base portion extending to a side opposite to the protrusion portion with respect to the first step portion,a gap between the plurality of valve bodies is changed by elastically deforming an inner peripheral portion of the valve body, which comes into ...

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Номер записи: 61
21-01-2021 дата публикации

Mini-magneto rheological damper

Номер: US20210018061A1
Автор: Saiman Lun
Принадлежит: BeijingWest Industries Co Ltd

A magneto rheological damper includes a housing extending between a first opened end and a second opened end and defining a fluid chamber extending therebetween. An end cap is located at the first opened end and coupled to the housing. A piston is disposed in the fluid chamber dividing the fluid chamber into a compression chamber and a rebound chamber. A piston rod extends along the center axis and attaches to the piston for movement with the piston between a compression and a rebound stroke. A magnetic field generator is located in the compression chamber and in an abutment relationship with the end cap. An extension portion protrudes radially outwardly from the housing and defining a compensation chamber and a channel. The channel is in fluid communication with the compression chamber and the compensation chamber for allowing the working fluid to flow from the compression chamber to the compensation chamber.

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Номер записи: 62
16-01-2020 дата публикации

ROTARY DAMPER

Номер: US20200018374A1
Автор: Kaneko Ryohei
Принадлежит:

Provided is a rotary damper on which the timing for generating a damping torque can be set freely. Groove-like bypass passages () that are longer in the circumferential direction than vanes () are formed in the upper surface () of a torque regulation plate () arranged on the bottom part () of a cylindrical circular chamber (). When the rotor () rotates in a first rotational direction R if both end faces () of the vanes () are positioned within a range of the respective bypass passages (), each area () and the corresponding area () are communicated via the corresponding bypass passage (), enabling movement of a viscous fluid () from the area () to the area (). Subsequently, if the rotor () rotates further in the first rotational direction R and one or both of the end faces () of each vane () is outside of the range of the corresponding bypass passage (), each area () and the corresponding area () are not communicated via the corresponding bypass passage (), and the viscous fluid () is unable to move from each area () to the corresponding area (). 19-. (canceled)10. A rotary damper for limiting a movement of a viscous fluid to generate a damping torque in reaction to a rotating force applied , the rotary damper comprising:a casing having a circular cylindrical chamber filled by the viscous fluid;a partition in a shape of substantial open fan, placed in the circular cylindrical chamber and partitioning an inside of the circular cylindrical chamber;a rotor configured to rotate due to the rotating force applied and comprising a rotor body and a vane, the rotor body contained in the circular cylindrical chamber rotatably relative to the circular cylindrical chamber and placing an outer peripheral surface close to an inner peripheral surface of the partition, the vane formed along a center line of the circular cylindrical chamber and radially outwardly from the outer peripheral surface of the rotor body to place a front end face close to an inner peripheral surface of the ...

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Номер записи: 63
16-01-2020 дата публикации

REMOTELY OPERATED BYPASS FOR A SUSPENSION DAMPER

Номер: US20200018376A1
Автор: Marking John
Принадлежит: Fox Factory, Inc.

A damper assembly with a bypass for a vehicle comprises a pressure cylinder with a piston and piston rod for limiting the flow rate of damping fluid as passes from a first to a second side of said piston. A bypass provides fluid pathway between the first and second sides of the piston separately from the flow rare limitation. In one aspect, the bypass is remotely controllable from a passenger compartment of the vehicle. In another aspect, the bypass is remotely controllable based upon one or more variable parameters associated with the vehicle. 1a damper cylinder;damping fluid disposed within said damper cylinder; a piston having a flow path formed through said piston;', 'a shim disposed to meter flow of said damping fluid through said flow path; and', 'a piston rod coupled to said piston;, 'a piston assembly disposed within said damper cylinder, said piston assembly comprising a valve body;', 'a movable piston housed within said valve body, an axial position of said movable piston controllable with respect to said valve body, said axial position of said movable piston controlling fluid flow through said remotely controllable needle valve, said movable piston having a shaft extending from a first end of said movable piston;', 'a spring mounted coaxially on said shaft;', 'a movable member telescopically mounted to said shaft, said spring biasing said movable member in an extended position with respect to said first end of said movable piston;', 'an inlet formed in said valve body;', 'an outlet formed in said valve body, said inlet and said outlet for enabling said fluid flow through said valve body; and', 'a control fluid inlet formed in said valve body, a pressure of control fluid at said control fluid inlet configured to adjust said axial position of said movable piston and determine a bypass pressure required to open said remotely controllable needle valve, wherein said axial position of said movable piston is changed when said movable member is in a locked out ...

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Номер записи: 64
28-01-2016 дата публикации

Damping valve

Номер: US20160025178A1
Автор: Ryosuke Kamakura, Tomoyasu ABE, Toshihiro Mori
Принадлежит: Kayaba Industry Co Ltd

A damping valve includes a valve seat member having a port and a first valve seat surrounding the port, a main valve body seated on or unseated from the first valve seat, the main valve body having a second valve seat oppositely to the valve seat member, a subsidiary valve body seated on or unseated from the second valve seat, a valve-body intermediate chamber provided between the main valve body and the subsidiary valve body in an inner circumferential side of the second valve seat, a restrictive passage that causes the port and the valve-body intermediate chamber to communicate with each other, the restrictive passage being configured to apply resistance to a flow of fluid passing therethrough, and a subsidiary valve body biasing means configured to bias the subsidiary valve body toward the main valve body.

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Номер записи: 65
28-01-2021 дата публикации

MONITORING SENSOR HAVING SAFETY FUNCTION FOR EVACUATING THE GAS PRESSURE SPRING WIRELESSLY

Номер: US20210025470A1
Автор: REINMUTH Norbert
Принадлежит:

The invention relates to a monitoring sensor () for measuring, receiving and transmitting a physical variable (P) of a gas pressure spring (), comprising a sensor element () and a pressure relief opening (), characterized in that the pressure relief opening () can be switched from an operating state into a safety state by remotely triggering the sensor element () in order to evacuate the gas pressure spring (), wherein the monitoring sensor () is designed with a connection device (), which can be detached in accordance with the intended use, for connection to a coupling () of the gas pressure spring (). 113.-. (canceled)14. A monitoring sensor for measuring , receiving and transmitting a physical variable of a gas pressure spring , comprising a sensor element and a pressure relief opening , wherein the pressure relief opening can be switched from an operating state into a safety state by remotely triggering the sensor element in order to evacuate the gas pressure spring , wherein the monitoring sensor is designed with a connection device , which can be detached in accordance with the intended use , for connecting to a coupling of the gas pressure spring.15. The monitoring sensor according to claim 14 , wherein the sensor element is designed for monitoring a pressure in the gas pressure spring.16. The monitoring sensor according to claim 14 , wherein in addition to data for the pressure claim 14 , the sensor element optionally determines one or all of the additional variables: the temperature claim 14 , the part number claim 14 , the part ID claim 14 , the sensor ID claim 14 , the position in the tool claim 14 , the different cycle times claim 14 , the battery status and the transmission power of the sensor claim 14 , and transmits them wirelessly to a gateway or a data holder.17. The monitoring sensor according to claim 14 , wherein with reception of a certain signal or pressure claim 14 , the monitoring sensor switches the pressure relief opening from the operating ...

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Номер записи: 66
28-01-2021 дата публикации

Damping valve and shock absorber

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

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

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Номер записи: 67
28-01-2021 дата публикации

REMOTELY OPERATED BYPASS FOR A SUSPENSION DAMPER

Номер: US20210025472A1
Автор: Marking John
Принадлежит: Fox Factory, Inc.

A damper assembly with a bypass for a vehicle comprises a pressure cylinder with a piston and piston rod for limiting the flow rate of damping fluid as it passes from a first to a second side of said piston. A bypass provides a fluid pathway between the first and second sides of the piston separately from the flow rare limitation. In one aspect, the bypass is remotely controllable from a passenger compartment of the vehicle. In another aspect, the bypass is remotely controllable based upon one or more variable parameters associated with the vehicle. 1a damper cylinder;a damping fluid disposed within said damper cylinder; a piston having a flow path formed through said piston;', 'a shim disposed to meter a flow of said damping fluid through said flow path; and', 'a piston rod coupled to said piston; and, 'a piston assembly disposed within said damper cylinder, said piston assembly comprising a moveable piston;', 'a seating member, the seating member selectively positionable with respect to the moveable piston; and', 'a biasing element comprised of a spring, said spring having a compression characteristic which permits said remotely controllable valve to open at a predetermined bypass pressure interposed between said moveable piston and said seating member, said spring biasing said seating member in a direction away from said moveable piston; and', 'a pneumatic input providing activating pressure to adjust the remotely controllable valve between an open position, a lock-out position, and an intermediate position between the open position and the lock-out position., 'a closing member, the closing member comprising, 'a remotely controllable valve for controlling the flow of said damping fluid through said bypass assembly, said remotely controllable valve controlled by an operator-actuated switch located in a passenger compartment of a vehicle to which said vehicle suspension damper is coupled, the remotely controllable valve further comprising, 'a bypass assembly ...

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Номер записи: 68
28-01-2021 дата публикации

Dual-stage, separated gas/fluid shock strut servicing monitoring system using two pressure/temperature sensors

Номер: US20210027551A1
Автор: Adnan Cepic, Amir Fazeli, Susanne M. Reber
Принадлежит: Goodrich Corp

A method for monitoring a dual-stage, separated gas/fluid shock strut includes receiving, by a controller, primary chamber temperature and pressure sensor readings, secondary chamber pressure and temperature sensor readings, and a shock strut stroke sensor reading, determining, by the controller, a shock strut stroke at which a secondary chamber is activated, calculating, by the controller, a volume of oil in an oil chamber of the shock strut, a primary chamber gas volume of, a number of moles of gas in, and a volume of oil leaked into, a primary gas chamber of the shock strut, a secondary chamber gas volume in, a volume of oil leaked into, and a number of moles of gas in, the secondary chamber, based upon at least one of the secondary chamber pressure sensor reading, and the secondary chamber temperature sensor reading.

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Номер записи: 69
28-01-2021 дата публикации

DUAL-STAGE, SEPARATED GAS/FLUID SHOCK STRUT SERVICING MONITORING SYSTEM USING ONE PRESSURE/TEMPERATURE SENSOR

Номер: US20210027552A1
Автор: Cepic Adnan, Fazeli Amir M., Reber Susanne M.
Принадлежит: GOODRICH CORPORATION

A method for monitoring a dual-stage, separated gas/fluid shock strut includes receiving, by a controller, a primary chamber temperature sensor reading, a primary chamber pressure sensor reading, and a shock strut stroke sensor reading, calculating, by the controller, a secondary chamber nominal pressure based upon the primary chamber temperature sensor reading, determining, by the controller, a shock strut stroke associated with the secondary chamber nominal pressure, calculating, by the controller, a volume of oil in an oil chamber, a volume of gas in a primary gas chamber, a number of moles of gas in the primary gas chamber, a volume of oil leaked into the primary gas chamber, a volume of gas in a secondary chamber, and a number of moles of gas in the secondary chamber. 1. A method for monitoring a dual-stage , separated gas/fluid shock strut , comprising:receiving, by a controller, a primary chamber temperature sensor reading;receiving, by the controller, a primary chamber pressure sensor reading;receiving, by the controller, a shock strut stroke sensor reading;calculating, by the controller, a secondary chamber nominal pressure based upon the primary chamber temperature sensor reading;determining, by the controller, a shock strut stroke associated with the secondary chamber nominal pressure;calculating, by the controller, a volume of oil in an oil chamber of the dual-stage, separated gas/fluid shock strut;calculating, by the controller, a volume of gas in a primary gas chamber of the dual-stage, separated gas/fluid shock strut based upon at least the volume of oil;calculating, by the controller, a number of moles of gas in the primary gas chamber of the dual-stage, separated gas/fluid shock strut;calculating, by the controller, a volume of oil leaked into the primary gas chamber of the dual-stage, separated gas/fluid shock strut;calculating, by the controller, a volume of gas in a secondary chamber of the dual-stage, separated gas/fluid shock strut; ...

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Номер записи: 70
02-02-2017 дата публикации

SHOCK ABSORBER DAMPER

Номер: US20170030427A1
Автор: Hunter Joe
Принадлежит:

A shock absorber damper () comprising a cylinder housing () and a piston (), the piston comprises a piston damping fluid sub-chamber () and a gas sub-chamber (), and said sub-chambers separated by a moveable divider (), and the damper comprises a tube () which allows displacement of damping fluid therethrough, and the tube comprises a first port () and a second port () which are spaced apart from each other along the length of the tube, and the damper further comprises a damper valve (), and the damper valve provided between a first sub-chamber () and a second sub-chamber (), and wherein, the tube arranged to allow flow of fluid between one of the sub-chambers and the piston damping fluid chamber. 1. A shock absorber damper comprising a cylinder housing and a piston , the piston comprising a piston damping fluid sub-chamber and a gas sub-chamber , said sub-chambers separated by a moveable divider , the damper further comprising a tube which allows displacement of damping fluid therethrough , the tube comprising a first port and a second port which are spaced apart from each other along the length of the tube , the damper further comprising a damper valve provided between a first sub-chamber and a second sub-chamber , wherein the tube is configured to allow flow of fluid between one of the sub-chambers and the piston damping fluid chamber.2. The damper of in which the tube is arranged to allow displacement of damping fluid between damping fluid chambers.3. The damper of in which the piston comprises an aperture through which the tube is arranged to be received.4. The damper of in which the damper comprises a seal which seals the tube within the aperture claim 1 , whilst allowing relative movement between the tube and the piston.5. The damper of in which the damper valve comprises two uni-directional valve assemblies claim 1 , each of which allows fluid flow in a respective direction opposite to the direction of flow of the other.6. A damper as claimed in in which the ...

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Номер записи: 71
01-02-2018 дата публикации

COMPRESSION ISOLATOR FOR A SUSPENSION DAMPER

Номер: US20180031071A1
Автор: Marking John
Принадлежит: Fox Factory, Inc.

A method and apparatus for a damper. The damper comprises a fluid chamber having a piston dividing the chamber into a compression and rebound sides, a reservoir in fluid communication with the compression side of the chamber, and an isolator disposed between the compression side and the reservoir, whereby the isolator obstructs fluid flow between the compression side and the reservoir. In one embodiment, a bypass provides a fluid path between the compression side and the isolator. 1. A vehicle suspension comprising: a compression side; and', 'a rebound side;, 'a fluid chamber housing, said fluid chamber housing defining a fluid chamber therein, said fluid chamber comprisinga piston disposed within said fluid chamber, said piston dividing said fluid chamber into said compression side and said rebound side;a compression isolator disposed within said fluid chamber housing; a fluid-fillable portion, said fluid-fillable portion configured to receive fluid from said fluid chamber as a fluid capacity of said compression side of said fluid chamber decreases during a compression stroke; and', 'a gas pocket; and', 'a floating piston disposed within said reservoir chamber, said floating piston movably sealing said fluid-fillable portion from said gas pocket, said floating piston configured to transfer pressure between fluid in said fluid-fillable portion of said fluid reservoir and said gas pocket; and, 'a reservoir chamber housing physically distinct from said fluid chamber housing, said reservoir chamber housing defining a reservoir chamber therein, said reservoir chamber fluidically coupled with said fluid chamber, said reservoir chamber housing comprisinga bypass chamber providing a fluid pathway between said compression side and said rebound side, said bypass chamber being in fluid communication with said fluid chamber via a set of ports disposed in a wall of said fluid chamber housing.2. The vehicle suspension of claim 1 , wherein said bypass chamber further comprises:an ...

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Номер записи: 72
01-05-2014 дата публикации

Continuously Variable Damper Device

Номер: US20140116825A1
Автор: Eric Alexander Lindeman
Принадлежит: TRACTIVE SUSPENSION BV

The present invention is related to a damper device ( 1 ). More in particular, the present invention is related to a damper device for which the damping force can be varied using a magnetically actuated closing member ( 33 ) with which a bypass channel ( 15 ) can be closed or opened. According to the present invention, the magnetic reluctance of the magnetic loop for guiding the magnetic field ( 8 ) is configured such that a too strong of an upward bending of the magnetic force versus closing member displacement curve is prevented. This prevents the system from obtaining multiple settling points for the closing member for a given current value. Consequently, the damper device is more stable and the damping force offered by it can be controlled more accurately.

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Номер записи: 73
30-01-2020 дата публикации

HYDRAULIC VIBRATION DAMPER, IN PARTICULAR FOR A VEHICLE CHASSIS

Номер: US20200031190A1
Автор: HAMERS Wolfgang
Принадлежит:

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

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Номер записи: 74
31-01-2019 дата публикации

DAMPING FORCE VARIABLE VALVE

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

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

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Номер записи: 75
31-01-2019 дата публикации

Damping Adjusting System With Perpendicular Seal Ring

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

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

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Номер записи: 76
31-01-2019 дата публикации

BYPASS FOR A SUSPENSION DAMPER

Номер: US20190032745A1
Автор: Marking John
Принадлежит: Fox Factory, Inc.

A vehicle suspension damper comprises a cylinder and a piston assembly including a damping piston along with working fluid within the cylinder. A bypass permits fluid to avoid dampening resistance of the damping piston. A fluid path through the bypass is controlled by a valve that is shifted by a piston surface when the contents of at least one predetermined volume is injected against the piston surface which acts upon the valve. In one embodiment, the bypass is remotely operable. 1a cylinder containing a fluid and a damping piston operable to travel within said fluid in said cylinder, said vehicle suspension damper further including a passageway through said damping piston and limiting a flow rate of said fluid through said damping piston in at least one direction;a bypass pathway in fluid communication with said cylinder, said bypass pathway providing a path for said fluid to travel between a first side and a second side of said damping piston; a valve body;', 'a valve piston housed within said valve body, said valve piston having a valve piston surface;', 'a shaft extending from said valve piston;', 'a valve member coupled to said shaft, said valve member telescopically mounted to said shaft and said valve member movable with respect to said shaft wherein a gap is formed between said valve member and an end of said shaft;', 'a spring member mounted on said shaft between said valve member and said valve piston, said spring member biasing said valve member away from said valve piston; and', 'a manual pre-load adjustment coupled to said valve piston, said manual pre-load adjustment configured to adjust a position of said valve piston; and, 'a valve for controlling a flow of said fluid through said bypass pathway, said valve comprisingat least one predetermined fluid volume in selective fluid communication with said valve piston surface for causing displacement of said valve piston; wherein the valve is remotely controllable.. A vehicle suspension damper comprising: ...

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Номер записи: 77
30-01-2020 дата публикации

DAMPING FORCE ADJUSTABLE SHOCK ABSORBER

Номер: US20200032871A1
Автор: YAMASHITA MIKIO
Принадлежит:

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

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Номер записи: 78
04-02-2021 дата публикации

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

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

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

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Номер записи: 79
04-02-2021 дата публикации

Combined Air Spring and Damper

Номер: US20210033164A1
Автор: Barefoot Darek C., Prinster Eric
Принадлежит:

A suspension system includes a first compression chamber and a second compression chamber with a damping chamber therebetween. The compression chambers may be independently filled with a compressible fluid, and the relative pressures may govern the rebound rate of the suspension. Seals that minimize friction, an adjustment system, and a stop are also included to enhance rider joy. 1. A shock absorber , comprising:a first tube at least partially defining a first compression chamber;a second tube; anda third tube within the second tube and at least partially defining a second compression chamber and a damping chamber, the damping chamber being axially between the first compression chamber and the second compression chamber.2. The shock absorber according to claim 1 , further comprising a first valve permitting the adjustment of fluid pressure within the first compression chamber.3. The shock absorber according to claim 2 , further comprising a second valve permitting the adjustment of fluid pressure within the second compression chamber.4. The shock absorber according to claim 3 , wherein the fluid pressure in the first compression chamber and the fluid pressure in the second compression chamber are independently adjustable.5. The shock absorber according to claim 1 , further comprising an adjustable valve positioned in a fluid path between the second compression chamber and the damping chamber.6. The shock absorber according to claim 5 , further comprising an adjuster positioned adjacent the first tube for adjusting the adjustable valve.7. The shock absorber according to claim 4 , wherein the difference between the fluid pressure in the first compression chamber and the fluid pressure in the second compression chamber governs a rate of rebound of the shock absorber.8. A shock absorber claim 4 , comprising:a first end at least partially defining a first compression chamber filled with a compressible fluid;a second end at least partially defining a second compression ...

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Номер записи: 80
04-02-2021 дата публикации

MAGNETORHEOLOGICAL HYDRAULIC DAMPER WITH PASSIVE DAMPING CHAMBER

Номер: US20210033165A1
Автор: II Marcin, KNAPCZYK
Принадлежит:

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

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Номер записи: 81
11-02-2016 дата публикации

Multi function heave compensator

Номер: US20160039643A1
Автор: Oddbjørn Bergem, Stian Sannes
Принадлежит: Ernst-B Johansen As

A heave compensator with adjustable dampening properties includes a length extension device having an inner space divided by a slide-able piston into a vacuum chamber and a liquid filled chamber, a gas accumulator divided by a slide-able piston into a gas filled chamber and a liquid filled chamber, and a gas tank having an expansion chamber. The liquid and gas chamber are fluidly connected to each other with valve controlled conduits. Further, the device includes pressure and temperature sensors that register pressure and temperature in the gas and liquid phases. The device further includes a control unit having a signal receiving unit, a writeable computer memory, a data processing unit, and a signal transmitting unit. The data processing unit contains computer software that calculates suited amounts of gas and gas pressure in the gas accumulator and/or gas tank based on the information of which lifting operation is going to be performed. The data processing unit further engages activation means such that the suited amount of gas and gas pressure are achieved and maintained during the different phases of the lifting operation.

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Номер записи: 82
11-02-2016 дата публикации

SHOCK ABSORBER AND VEHICLE USING THE SAME

Номер: US20160040742A1
Автор: TAKIGUCHI Kunio, YAMASHITA MIKIO
Принадлежит:

A minimum length-side property in which an extension-side damping coefficient signifies a hard state in a range (Aa) where the piston rod enters further inside the cylinder than a minimum length-side predetermined position (Sa), and a maximum length-side property in which the extension-side damping coefficient signifies a soft state in a range (Aa) where the piston rod extends further outside the cylinder than a maximum length-side predetermined position (Sa) are included. An extension-side damping force property between the minimum length-side predetermined position (Sa) and the maximum length-side predetermined position (Sa) includes a part (Sa to Sa, Sa to Sa) in which a damping coefficient change rate with respect to a stroke of the piston rod is large and a part (Sa to Sa) in which the damping coefficient change rate is small. At least when the piston rod strokes to the extension side from the minimum length-side predetermined position (Sa), the damping coefficient change rate is allowed to be large. 1. A shock absorber comprising:a cylinder in which a working fluid is sealed;a piston slidably fitted into the cylinder and configured to divide the inside of the cylinder into two chambers;a piston rod connected to the piston and extending toward the outside of the cylinder;a communication passage configured to cause the two chambers to communicate and configured to allow the working fluid to flow between the two chambers according to movement of the piston; anda damping force generating device installed at the communication passage and configured to limit a flow of the working fluid generated by movement of the piston to generate a damping force, wherein: a minimum length-side property in which an extension-side damping coefficient signifies a hard state in a range where the piston rod enters further inside the cylinder than a minimum length-side predetermined position,', 'a maximum length-side property in which the extension-side damping coefficient signifies a ...

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Номер записи: 83
12-02-2015 дата публикации

CONTROL ASSEMBLY FOR A BICYCLE SHOCK ABSORBER

Номер: US20150041267A1
Автор: Shawver Andrew, VAN ZYL MICHAEL
Принадлежит: SRAM, LLC

A control assembly for controlling a component, such as a bicycle shock absorber including a first actuator carried by the shock absorber. The first actuator has a fulcrum body supported in the shock absorber and a control arm displacing the fulcrum body. The first actuator pivots on the fulcrum body to operatively control a first characteristic of the shock absorber. 1. A control assembly for controlling a bicycle component , comprising:a first actuator carried by the component, the first actuator including a fulcrum body supported in the component and a control arm displacing the fulcrum body, the first actuator pivoting on the fulcrum body to operatively control a first characteristic of the component.2. The control assembly of claim 1 , wherein the first actuator has an exterior portion that extends from the fulcrum body to a point outside of a housing of the component.3. The control assembly of claim 2 , wherein the component is a suspension component and wherein the first actuator has an interior portion that extends from the fulcrum body to a driver claim 2 , the driver operative to control compression damping in the suspension component.4. The control assembly of claim 3 , wherein the interior portion has a lesser length than the exterior portion.5. The control assembly of claim 1 , wherein the fulcrum body is spheroidal or spherical.6. The control assembly of claim 5 , wherein the fulcrum body is a one-piece construction with the control arm.7. The control assembly of claim 1 , wherein the fulcrum body and control arm are separate.8. The control assembly of claim 7 , wherein the fulcrum body is in the form of an eyelet.9. The control assembly of claim 1 , wherein the component is a rear shock absorber.10. The control assembly of claim 9 , wherein the shock absorber includes a piston assembly and the driver is moved axially to effect changes in fluid flow through the piston assembly.11. The control assembly of claim 9 , wherein the shock absorber has a ...

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Номер записи: 84
09-02-2017 дата публикации

CYLINDER DEVICE

Номер: US20170037921A1
Автор: Ogawa Takayuki
Принадлежит: KYB Corporation

An object is to provide a cylinder device which can be used over a long period of time. The cylinder device includes a damper, a pump, a motor and an external tank. The damper has a cylinder, a first bracket, a piston, a piston rod and a second bracket. The piston is slidably inserted into an interior of the cylinder. The piston rod is inserted into the cylinder and connects the piston to an end located in the cylinder. The pump is disposed at one of right and left sides with respect to a central axis of the cylinder. The motor is disposed at the one side which is the same side as the pump with respect to the central axis of the cylinder. The external tank is disposed at the other side with respect to the central axis of the cylinder. 1. A cylinder device comprising:a damper having a cylinder, a first bracket coupled to one of two ends of the cylinder, a piston slidably inserted into the cylinder, a piston rod inserted into the cylinder and having one of two ends coupled to the piston, and a second bracket coupled to the other end of the piston rod;a pump disposed at one of right and left sides with respect to a central axis of the cylinder and supplying an operating fluid to the damper;a motor disposed at the one side of right and left which is the same side as the pump with respect to the central axis of the cylinder and driving the pump; anda tank disposed at the other side of right and left with respect to the central axis of the cylinder and storing the operating fluid.2. The cylinder device according to claim 1 , further comprising a valve provided in a passage communicating between the cylinder and the tank claim 1 , the valve being disposed at the other side of right and left with respect to the central axis of the cylinder claim 1 , which other side is the same side as the tank is disposed.3. The cylinder device according to claim 2 , wherein:the cylinder has an interior divided by the piston into a rod-side chamber and a piston-side chamber;the passage ...

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Номер записи: 85
09-02-2017 дата публикации

HYDRAULIC SHOCK ABSORBER WITH COMPRESSION FILTERING

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

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

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Номер записи: 86
08-02-2018 дата публикации

SUSPENSION STRUT FOR A VEHICLE

Номер: US20180038440A1
Автор: Coombs Joshua, Edmondson Jeremy
Принадлежит:

A hydraulic strut system that damps vehicle vibration and includes a compressible fluid, a strut, and a valve plate. The strut includes three concentric tubes defining an inner cavity, an intermediary cavity, and an outer reservoir cavity, the inner cavity and intermediary cavity being fluidly coupled, wherein the inner cavity receives a piston that divides the inner cavity into a first volume and a second volume, the piston having an aperture that allows one way flow from the first volume to the second volume. The valve plate is removably coupled to the strut, and includes a first fluid path that allows one-way fluid flow from the intermediary cavity to the reservoir cavity, the first fluid path including a damping valve that damps fluid flowing therethrough; and a second fluid path that allows one-way fluid flow from the reservoir cavity to the inner cavity, the second fluid path further including a replenishment valve. 2. The system of claim 1 , further comprising a replenishment valve within the replenishment flow path claim 1 , the replenishment valve configured to control fluid flow from the reservoir vessel to the first cavity.3. The system of claim 1 , wherein the damper valve axis is substantially collinear with the central axis.5. The system of claim 4 , further comprising a regeneration valve that controls fluid flow to the pump claim 4 , wherein the regeneration valve is operable between:a closed mode that prevents fluid flow to the pump; andan open mode that permits fluid flow to the pump.7. The system of claim 6 , wherein the primary tube defines a plurality of apertures extending through a wall of the primary tube.9. The system of claim 1 , wherein the reservoir vessel is external the strut.10. The system of claim 1 , wherein the damper valve comprises an active valve.11. The system of claim 10 , wherein the damper valve comprises a solenoid-controlled valve.12. The system of claim 1 , wherein the damper valve comprises an actuator configured to ...

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Номер записи: 87
08-02-2018 дата публикации

REGULABLE VIBRATION DAMPER

Номер: US20180038441A1
Автор: SMELJANSKIJ Dmitrij
Принадлежит:

A regulable vibration damper may comprise a cylinder barrel that contains hydraulic fluid in a sealed manner, a piston that can be moved axially within the cylinder barrel along a cylinder barrel axis and that subdivides the cylinder barrel into two working chambers, a piston rod that is oriented parallel to the cylinder barrel axis and is connected to the piston, a valve assembly arranged at a fluid feed through to damp piston movement in an actuating direction, and a bypass duct between the two working chambers. The bypass duct may comprise a first throughflow cross section for a first throughflow direction, wherein the first throughflow cross section differs from a second throughflow cross section for a second throughflow direction. Further, the bypass duct may be formed, at least in part, by an outflow passage that is arranged on an exit side of a pilot valve for adjusting pilot pressure. 15.-. (canceled)6. A regulable vibration damper comprising:a cylinder barrel that contains hydraulic fluid in a sealed manner;a piston that is movable axially within the cylinder barrel along a cylinder-barrel axis and that subdivides the cylinder barrel into two working chambers;a piston rod that is oriented parallel to the cylinder-barrel axis and that is connected to the piston;a valve assembly disposed at a fluid feed-through of the piston to damp piston movement in an actuating direction; anda bypass duct disposed between the two working chambers, the bypass duct comprising a first throughflow cross section for a first throughflow direction, wherein the first throughflow cross section differs from a second throughflow cross section for a second throughflow direction, wherein the bypass duct comprises an outflow passage that is disposed on an exit side of a pilot valve for adjusting a pilot pressure.7. The regulable vibration damper of further comprising a valve arrangement disposed in the outflow passage claim 6 , wherein the valve arrangement comprises an outflow-passage ...

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Номер записи: 88
08-02-2018 дата публикации

VIBRATION DAMPER WITH A TRACTION STOP

Номер: US20180038442A1
Автор: ADICK Hendrik, EHINGER Alexander
Принадлежит:

A vibration damper for a vehicle chassis may comprise a damper tube, a piston rod that is movable in an oscillating manner in an axial direction in the damper tube, a working piston disposed on the piston rod, and a closure package that closes the damper tube and through which the piston rod is guided. A spring element that is disposed in a region between the working piston and the closure package may comprise an annular basic body that surrounds the piston rod to form an annular chamber, an upper side facing the closure package, and a lower side facing the working piston. To reduce vibrations and noise from reaching a vehicle body, the spring element may include a lip element on the upper and/or lower side, and a spring rigidity of the lip element may be lower than a rigidity of the annular basic body. 112.-. (canceled)13. A vibration damper for a chassis of a motor vehicle , the vibration damper comprising:a damper tube;a piston rod that is movable in an oscillating manner in an axial direction in the damper tube;a working piston that is disposed on the piston rod;a closure package that closes the damper tube, wherein the piston rod is guided through the closure package; and an annular basic body that surrounds the piston rod and forms an annular chamber between the annular basic body and the piston rod,', 'an upper side that faces the closure package,', 'a lower side that faces the working piston, and', 'a lip element disposed on the upper side or the lower side, wherein a spring rigidity of the lip element is lower than a spring rigidity of the annular basic body., 'a spring element that is disposed in a region between the working piston and the closure package, wherein the spring element comprises'}14. The vibration damper of wherein the lip element is a first lip element claim 13 , the spring element further comprising a second lip element disposed on the lower side.15. The vibration damper of wherein the first and second lip elements are integral with the ...

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Номер записи: 89
07-02-2019 дата публикации

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

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

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

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Номер записи: 90
24-02-2022 дата публикации

INTERNAL BYPASS SHOCK ABSORBER

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

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

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Номер записи: 91
24-02-2022 дата публикации

VIBRATION DAMPERS AND DAMPER TUBES FOR VIBRATION DAMPERS

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

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

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Номер записи: 92
06-02-2020 дата публикации

ADJUSTABLE DAMPING CURVE SHOCK ABSORBER

Номер: US20200039311A1
Автор: KING Christopher J., NEUMAN Jacob A.
Принадлежит:

An adjustment control for adjusting a damping curve of a shock absorber includes an aperture seat coupled to a base of the shock absorber. The aperture seat defines a flow tube. A plug, in mechanical communication with a spring, slidably engages the flow tube. A plug nut is threadably coupled to an adjustment nut shaft stud and is in mechanical communication with the spring. An adjustment nut is coupled to the base. The adjustment nut has a non-circular cavity to receive at least a portion of the adjustment nut shaft stud and at least a portion of the non-circular region of the plug nut such that the plug nut cannot rotate relative to the non-circular cavity of the adjustment nut. An adjustment knob causes rotation of the adjustment nut shaft stud. The rotation of the adjustment nut shaft stud causes axial movement of the plug nut. 1. An adjustment control for adjusting a damping curve of a shock absorber , said adjustment control comprising:an aperture seat coupled to a base of said shock absorber, said aperture seat defining a flow tube and said base having a bore;a plug body including a plug, said plug slidably engaging said flow tube;a spring in mechanical communication with said plug body, said spring urging said plug into said flow tube;a plug nut including a non-circular region and a first threaded portion, said plug nut being in mechanical communication with said spring;an adjustment nut shaft stud including a second threaded portion to engage said first threaded portion;an adjustment nut coupled to said base, said adjustment nut defining a non-circular cavity to receive at least a portion of said adjustment nut shaft stud and at least a portion of said non-circular region of said plug nut such that said plug nut cannot rotate relative to said non-circular cavity of said adjustment nut; andan adjustment knob, wherein rotation of said adjustment knob causes rotation of said adjustment nut shaft stud relative to said adjustment nut, and wherein rotation of ...

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Номер записи: 93
07-02-2019 дата публикации

Piston-Cylinder Unit

Номер: US20190040925A1
Автор: ALZER Andreas, SCHULTE Redolf
Принадлежит:

A piston-cylinder unit has a piston rod at which is arranged at least one piston which has at an outer lateral surface a radially elastic piston ring that moves into a cylinder depending on a stroke position of the piston rod and has a smaller diameter than in a stroke position in which the piston is located outside of the cylinder. The piston ring has a stop that defines a maximum diameter of the piston ring. 111-. (canceled)12. A piston-cylinder unit comprising:a cylinder having a first portion having a first diameter and a second portion having a second diameter that is smaller than the first diameter;at least one piston having a piston ring that is radially elastic and has at an outer lateral surface;a piston rod at which the at least one piston is arranged;a radially elastic piston ring arranged at the outer lateral surface of the piston ring and configured to move into the first portion of the cylinder and the second portion of the cylinder depending on a stroke position of the piston rod and having a smaller diameter in the second portion of the cylinder than in the first portion of the cylinder; anda stop that defines a maximum diameter of the piston ring.13. The piston-cylinder unit according to claim 12 , wherein the stop is formed by an outer sleeve.14. The piston-cylinder unit according to claim 13 , wherein the piston ring has an outer annular groove configured to receive the outer sleeve.15. The piston-cylinder unit according to claim 12 , wherein the piston ring has a minimum outer diameter and a radial clearance with respect to a groove base of a piston ring groove.16. The piston-cylinder unit according to claim 13 , wherein the outer sleeve has a radial clearance relative to the cylinder.17. The piston-cylinder unit according to claim 13 , wherein the outer sleeve is formed by an O-ring.18. The piston-cylinder unit according to claim 13 , wherein the outer sleeve is formed by a metal clamping ring.19. The piston-cylinder unit according to claim 14 , ...

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Номер записи: 94
07-02-2019 дата публикации

Vibration damper arrangement

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

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

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Номер записи: 95
18-02-2016 дата публикации

HYDRAULIC SHOCK ABSORBER AND METHOD FOR INJECTING OPERATING LIQUID INTO HYDRAULIC SHOCK ABSORBER

Номер: US20160046349A1
Автор: TOMIUGA Takeshi
Принадлежит: KAYABA INDUSTRY CO., LTD.

A hydraulic shock absorber includes a cylinder connected to a wheel side, a liquid chamber formed in the cylinder and filled with an operating liquid, an annular rod guide fixed to the cylinder and closing a vehicle body side of the liquid chamber, a piston rod connected to the vehicle body side, penetrating a shaft core part of the rod guide, and going into/out of the cylinder, a piston held by the piston rod and dividing the liquid chamber into an extension-side chamber and a compression-side chamber, and an annular bush fitted in an inner periphery of the rod guide and pivotally supporting the piston rod, movably in an axial direction, in which the piston rod includes a columnar sliding shaft portion in sliding contact with the bush and a first injection portion for injecting the operating liquid provided on a side opposite to the piston of the sliding shaft portion and outside a range of a damper stroke. 1. A hydraulic shock absorber interposed between a vehicle body and a wheel , comprising:a cylinder connected to the wheel side;a liquid chamber formed in the cylinder, the liquid chamber being filled with an operating liquid;an annular rod guide fixed to the cylinder, the rod guide closing the vehicle body side of the liquid chamber;a piston rod connected to the vehicle body side, the piston rod penetrating a shaft core part of the rod guide, the piston rod going into/out of the cylinder;a piston held by the piston rod, the piston dividing the liquid chamber into an extension-side chamber and a compression-side chamber; andan annular bush fitted in an inner periphery of the rod guide, the bush pivotally supporting the piston rod movably in an axial direction, whereinthe piston rod includes:a columnar sliding shaft portion contacting slidably with the bush; anda first injection portion configured to inject the operating liquid, the first injection portion being provided on a side opposite to the piston of the sliding shaft portion and outside a range of a damper ...

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Номер записи: 96
06-02-2020 дата публикации

VIBRATION DAMPERS, SHUT-OFF VALVES, AND METHODS FOR FILLING VIBRATION DAMPERS

Номер: US20200040960A1
Автор: Woenarta Freddy
Принадлежит:

A vibration damper may be used in connection with a motor vehicle. The vibration damper may include a hydraulic device for damping vibrations. The vibration damper may also include at least one shut-off valve connected fluidically to the hydraulic device at the vibration damper. The shut-off valve may be capable of being connected fluidically to at least one of a pump or a filling apparatus for filling the vibration damper with hydraulic fluid. The shut-off valve may comprise a valve housing with a first connector for the pump, a second connector for the filling apparatus, and a third connector for the hydraulic device. 1. A vibration damper for a motor vehicle comprising:a hydraulic device for damping vibrations; and 'wherein the shut-off valve is connectable fluidically to at least one of a pump or a filling apparatus for filling the vibration damper with hydraulic fluid.', 'a shut-off valve connected fluidically to the hydraulic device,'}2. The vibration damper of wherein the shut-off valve comprises a valve housing with a first connector for the pump claim 1 , a second connector for the filling apparatus claim 1 , and a third connector for the hydraulic device.3. The vibration damper of wherein the shut-off valve comprises an adjustable shut-off element claim 1 , wherein in a closed position the adjustable shut-off element shuts off firstly a fluidic connection to the hydraulic device and secondly a fluidic connection to the at least one of the pump or the filling apparatus.4. The vibration damper of wherein the adjustable shut-off element comprises a shut-off plunger mounted in a valve housing of the shut-off valve such that the shut-off plunger is axially movable.5. The vibration damper of wherein a section of the shut-off plunger projects beyond the valve housing claim 4 , wherein a ring is connected coaxially to the section by way of a seal disposed on an inner circumference of the ring.6. The vibration damper of wherein the shut-off valve comprises a valve ...

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Номер записи: 97
18-02-2021 дата публикации

HYDRAULIC SHOCK ABSORBER

Номер: US20210048084A1
Автор: Murakami Yosuke
Принадлежит: Showa Corporation

A hydraulic shock absorber includes a piston, a damper tube, a suspension spring, a plunger, a jack chamber, a pump case, a pump piston, a screw shaft, and a drive unit. Both end surfaces of the pump piston in a reciprocating direction are a first end surface demarcating the pump chamber, and a second end surface demarcating the gas chamber, the second end surface having a screw hole into which the screw shaft is screwed. The pump piston includes a space portion between a bottom plate defining the first end surface and the screw hole. The screw shaft has a through-hole connecting the gas chamber with the space portion. 1. A hydraulic shock absorber , comprising:a piston supported by a piston rod;a damper tube housing the piston therein such that the piston is capable of being reciprocated;a suspension spring biasing the damper tube and the piston rod in opposite directions;a plunger capable of adjusting the suspension spring in expansion and contraction directions by being advanced and retracted in the expansion and contraction directions of the suspension spring;a jack chamber holding the plunger such that the plunger is capable of being advanced and retracted, the jack chamber being filled with oil capable of pushing the plunger in an advancing direction;a pump case disposed to allow the oil to flow between the pump case and the jack chamber;a pump piston partitioning an inside of the pump case into a pump chamber communicating with the jack chamber and a gas chamber filled with a pressurized gas, the pump piston being reciprocably housed in the pump case;a screw shaft disposed in the gas chamber and screwed into the pump piston; anda drive unit rotating the screw shaft,wherein both end surfaces of the pump piston in a reciprocating direction are a first end surface demarcating the pump chamber, and a second end surface demarcating the gas chamber, the second end surface having a screw hole into which the screw shaft is screwed,the pump piston includes a space ...

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Номер записи: 98
07-02-2019 дата публикации

Pull-Resistant Supply Line

Номер: US20190043647A1
Автор: ASSHOFF Thorsten, SAUERBREY Achim
Принадлежит: ZF FRIEDRICHSHAFEN AG

A feed line is connected to a coil base body, wherein a pull protection is formed between the feed line and the coil base body. The coil base body has a sleeve for receiving one end of the feed line. The sleeve is part of a retaining connection between the feed line and the coil base body. 114-. (canceled)15. A feed line assembly comprising:a coil base body;a feed line connected to the coil base body and forming a pull protection between the feed line and the coil base body, the coil base body having a sleeve for receiving an end of the feed line, and wherein the sleeve is part of a retaining connection between the feed line and the coil base body.16. The feed line assembly according to claim 15 , wherein the retaining connection is constructed as a positive engagement connection.17. The feed line assembly according to claim 15 , wherein the retaining connection is constructed as a frictional engagement connection.18. The feed line assembly according to claim 15 , wherein the sleeve is formed integral with the coil base body.19. The feed line assembly according to claim 15 , wherein the sleeve is formed by a separate structural component part.20. The feed line assembly according to claim 19 , wherein the sleeve is connected to the coil base body by means of a snap-on connection.21. The feed line assembly according to claim 17 , wherein the sleeve is constructed as a clamping cylinder.22. The feed line assembly according to claim 21 , wherein the clamping cylinder is axially slit and comprises a quantity of clamping hooks.23. The feed line assembly according claim 15 , wherein the sleeve comprises a conductor channel cover.24. The feed line assembly according to claim 19 , wherein the sleeve is constructed of a plurality of component parts claim 19 , and wherein the individual component parts form a clamping ring.25. The feed line assembly according to claim 17 , additionally comprising a retaining ring inserted between the sleeve and the feed line assembly.26. The ...

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Номер записи: 99
08-05-2014 дата публикации

DAMPER WITH A VEHICLE HEIGHT ADJUSTING FUNCTION

Номер: US20140124311A1
Автор: Hanawa Nobumichi, Yoshimoto Tsutomu
Принадлежит: KAYABA INDUSTRY CO., LTD.

A damper with a vehicle height adjusting function includes a damper body and a vehicle height adjusting mechanism adapted to adjust an axial length of the damper body. The damper body includes a cylinder, a head member having an annular shape and closing one end of the cylinder, a piston rod axially supported on an inner periphery of the head member and inserted in the cylinder so as to be movable in an axial direction, and a piston retained by the piston rod and partitioning an inside of the cylinder into two pressure chambers. The vehicle height adjusting mechanism includes a partition wall member defining a jack chamber in one of the pressure chambers and being capable of extending and contracting in the axial direction, and a pump supplying/discharging a working fluid into/from the jack chamber. 1. A damper with a vehicle height adjusting function being capable of adjusting a vehicle height , the damper comprising:a damper body including a cylinder, a head member having an annular shape and closing one end of the cylinder, a piston rod axially supported on an inner periphery of the head member and inserted in the cylinder so as to be movable in an axial direction, and a piston retained by the piston rod and partitioning an inside of the cylinder into two pressure chambers; anda vehicle height adjusting mechanism adapted to adjust an axial length of the damper body, whereinthe vehicle height adjusting mechanism includes a partition wall member defining a jack chamber in one of the pressure chambers and being capable of extending and contracting in the axial direction, and a pump supplying/discharging a working fluid into/from the jack chamber.2. The damper with a vehicle height adjusting function according to claim 1 , whereinthe partition wall member includes a stationary partition wall fixed to the piston rod and arranged on the piston side, and a movable partition wall slidably mounted to the stationary partition wall and arranged on the head member side, ...

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Номер записи: 100