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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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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
19-01-2012 дата публикации

Apparatus for Transport of Equipment and Method for Manufacture Thereof

Номер: US20120012729A1
Автор: Curt A. Jackson, David S. Cummins, James N. Cook, JR.
Принадлежит: Toppan Photomasks Inc

An apparatus for transporting equipment and a method for the manufacture of the apparatus are disclosed. A damping assembly configured to dampen movement of a first item relative to a second item may include an arm and a shock absorber. The arm may be configured to be located between the first item and the second item and may be configured to pivotally couple to the first item and configured to slidably couple to the second item. The shock absorber may be configured to couple between the first item and the arm, such that the shock absorber dampens rotation of the arm to dampen movement of the first item relative to the second item.

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Номер записи: 3
09-02-2012 дата публикации

Self-powered and self-sensing magnetorheological dampers

Номер: US20120031719A1
Автор: CHAO Chen, Wei Hsin Liao
Принадлежит: Chinese University of Hong Kong CUHK

Disclosed is a self-powered and self-sensing MR damping device, comprising: an MR damper part having a damper piston assembly and a damper cylinder, the damper piston assembly being movable relative to the damper cylinder under an external excitation; a power generator configured to generate electrical power according to the relative movement between the damper piston and the cylinder assembly; and an electrical circuit configured to estimate said relative movement to output a damper driving current based on the estimated velocity, wherein the MR damper part is further configured to generate a damper force according to the damper driving current. An electrical circuit for the device is also provided.

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Номер записи: 4
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: 5
08-03-2012 дата публикации

Damper device

Номер: US20120055748A1
Автор: Kei SHIMOZAKI, Yoshitsugu Homma, Yusuke Imai
Принадлежит: NIFCO INC

A damper device includes a cylinder body, and a piston body. At least one end of either the cylinder body or the piston body is linked to an object to be braked to brake a relative movement or a movement of the object to be braked. The cylinder body includes a blocking member made of a synthetic resin at a deep inner section opposing to the piston body. The blocking member is formed separately from the cylinder body, and installed in one end of a tubular-shaped body forming the cylinder body. The blocking member has a fluid passage section and a braking force variable member moved therein. The braking force variable member holds passage of a fluid passing through the fluid passage section at a time of a movement of the piston body in a direction leaving from the deep inner section.

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Номер записи: 6
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: 7
28-06-2012 дата публикации

Suspension system for a bicycle and damper device

Номер: US20120160621A1
Автор: Gernot Elsensohn, Jürgen PÖSEL, Martin Walthert, Stefan Battlogg
Принадлежит: DT Swiss Inc

A suspension system for a muscle-powered two-wheeled vehicle having a damper device with a first damper chamber and a second damper chamber coupled with one another via a controllable damping valve. A sensor captures data about at least one current state. An electronic control device and a storage device are provided for controlling the damper device. At least one damping characteristic of the damper device can be influenced by a signal from the control device. The damping valve has a field generating device assigned to it which serves to generate and control a field strength in a damping channel of the damping valve. A field-sensitive rheological medium is provided in the damping channel for controlling the damping characteristic of the damper device in dependence on the sensor data.

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Номер записи: 8
12-07-2012 дата публикации

Buffer

Номер: US20120175830A1
Автор: Ching-Chuan Yang
Принадлежит: HUA FENG MACHINERY CO Ltd

A buffer includes a hollow tube, a first cap located at one end of the tube, a shaft, a flexible valve and a flexible inflation member. The shaft includes a main stem, an action stem and a sub-stem. The main stem and/or sub-stem are extended outside the tube. The main stem and action stem are bridged by a connection bar which has a first detent element connected to the main stem. The action stem has a coupling portion coupled with the connection bar, a stem surface with air intake grooves and a second detent element with notches. The inflation member has two ends surrounding the outer surface of the connection bar and the stem surface of the action stem to form a compression zone with the action stem. The buffer thus formed can prevent buffer delay and enhance buffer damping capability to generate steady and secure buffering effect.

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Номер записи: 9
09-08-2012 дата публикации

Support washer for shock absorber valve with blow-off tunability

Номер: US20120199430A1
Автор: John Patrick MCGAHEY
Принадлежит: Tenneco Automotive Operating Co Inc

A valve assembly for a shock absorber includes a valve body defining a fluid passage. A valve disc engages the valve body to close the fluid passage. A fulcrum disc engages the valve disc at a first position and a second position radially outward from the first position. The fulcrum disc is designed such that the second position is closer to the valve body. In one embodiment, the fulcrum disc is concave with respect to the valve body.

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Номер записи: 10
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: 11
08-11-2012 дата публикации

Translatably and rotatably semi-active device

Номер: US20120279345A1
Автор: Arvid Bergander, Jose Lozada, Samuel Roselier, Tobias Poessinger
Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA

A semi-active device capable of generating a resistive force against movements of a mobile element ( 2 ) of longitudinal axis (X) capable of moving in translation along its axis (X) and in rotation about said axis (X) in a housing( 4 ), said housing ( 4 ) delimiting with the mobile element ( 2 ) a sealed annular space ( 8 ), said annular space being filled with magneto-rheological fluid, the device also comprising means for generating a magnetic field in said annular space ( 8 ) comprising four electromagnets each comprising a coil ( 30 ) and a core ( 32 ), the cores ( 30 ) directly forming the housing ( 4 ).

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Номер записи: 12
22-11-2012 дата публикации

Motorcycle fork restraint device

Номер: US20120292148A1
Автор: Eric Phipps
Принадлежит: Works Connection Inc

A restraint device for being secured on a telescopic suspension comprising a first portion, which may be a fork band comprising a first restraining hook, a second portion comprising a body, a trigger, at least one magnetic member, and a second restraining hook, wherein the first restraining hook and the second restraining hook are configured to selectively engage one another to secure the suspension in a compressed position, and wherein the at least one magnetic member is configured to retract the second restraining hook when the device is disengaged to permit normal operation of the suspension.

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Номер записи: 13
22-11-2012 дата публикации

Manufacturing method for upper support and upper support

Номер: US20120292149A1
Автор: Hiroyuki Matsumura
Принадлежит: Sumitomo Riko Co Ltd

When manufacturing an upper support which includes a cup piece as an inner piece, an outer piece, and a rubber elastic body integrally vulcanize adhered thereto, the shape of a tubular portion of a cup piece before integral vulcanized adhesion with the rubber elastic body is a shape having a large diameter portion at a top portion continuous with a flanged portion, a small diameter portion at a bottom portion, and a stepped portion therebetween. Following integral vulcanized adhesion with the rubber elastic body, only the small diameter portion is diameter widened by press-fitting a diameter widening jig to impart pre-compression to the rubber elastic body. No roll-back deformation of a flanged portion occurs when integrally vulcanize adhering the cup piece to the rubber elastic body, and also when imparting pre-compression to the rubber elastic body by diameter widening a tubular portion of the cup piece.

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Номер записи: 14
22-11-2012 дата публикации

Thrust bearing and suspension for vehicle

Номер: US20120292841A1
Автор: Richard Corbett, Samuel Viault
Принадлежит: SKF AB

Suspension thrust bearing device comprising a rolling bearing ( 2 ) and a bottom cover ( 4 ) having a bearing surface capable of accommodating a suspension spring ( 5 ), the bottom cover ( 4 ) comprising a reinforcing framework ( 8 ), which framework has a bearing collar ( 17 ) placed axially between the rolling bearing ( 2 ) and the bearing surface of the spring ( 5 ), the framework ( 8 ) also comprising an inner radial extension ( 19 ). The framework comprises an axial portion ( 20 ) extending in a direction away from the rolling bearing ( 2 ), protruding axially relative to the inner radial extension ( 19 ) and being situated radially outside the radial extension so as to be able to accommodate a shock-absorbing pad.

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Номер записи: 15
24-01-2013 дата публикации

Apparatus and methods for connecting a shock absorber to a vehicle

Номер: US20130020778A1
Автор: William O. Brown, IV
Принадлежит: Fox Factory Inc

A shock absorber includes a shock body with an upper portion and a lower portion and an eyelet attached to each upper and lower portion for connecting to a vehicle. At least one eyelet includes a bushing assembly including a center shaft positioned within a bore and a first and second bushing positioned between an outer cylindrical wall of the center shaft and the bore of the eyelet. A first flexible ring is positioned between the first bushing and the center shaft, the first flexible ring compressed therebetween, and a second flexible ring is positioned between the second bushing and the center shaft, the second flexible ring compressed therebetween. A first and second end ring surrounding the center shaft outer cylindrical wall, with the first end ring adjacent the second end of the first bushing, and the second end ring adjacent the second end of the second bushing.

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Номер записи: 16
28-02-2013 дата публикации

Front fork

Номер: US20130048452A1
Автор: Kazuhiko MIWA, Osamu Nagai
Принадлежит: Showa Corp

In a front fork, a throttle flow path is provided between a hole which is provided in an inner tube and is communicated with an annular gap chamber, and a lower oil chamber in an outer periphery of a hollow pipe.

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Номер записи: 17
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: 18
04-04-2013 дата публикации

Bicycle shock absorber

Номер: US20130081273A1
Автор: Anthony Trujillo, Michael Mcandrews
Принадлежит: Specialized Bicycle Components Inc

A bicycle shock absorber having a primary unit and a remote unit that can be substantially entirely outside of the primary unit. The primary unit includes a damper tube, a spring chamber, and a piston rod that supports a main piston for movement within the damper chamber of the primary unit. The main piston and the damper tube at least partially define a compression chamber. The remote unit comprises a remote fluid chamber and, in some arrangements, an inertial valve within the remote unit that preferably is responsive to terrain-induced forces and not responsive to rider-induced forces when the shock absorber is assembled to the bicycle. The inertia valve can include at least one protective coating or layer configured to contact the reservoir shaft. A fluid flow control arrangement can utilize compression fluid flow to delay closing of the inertia valve after acceleration forces acting on the inertia valve diminish.

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Номер записи: 19
04-04-2013 дата публикации

Damper, washing machine and washing/drying machine

Номер: US20130081433A1
Автор: Tsuyoshi Shiga
Принадлежит: Toshiba Consumer Electronics Holdings Corp, Toshiba Corp, Toshiba Home Appliances Corp

A damper which uses a magnetic viscous fluid, includes a cylinder, a bobbin which is housed in the cylinder and on which a coil generating a magnetic field is wound, a yoke which is housed in the cylinder and provided on an end of the bobbin, and a shaft which is inserted into the cylinder so as to extend through the bobbin and the yoke and so as to be axially reciprocable relative to the bobbin and the yoke. The magnetic viscous fluid fills a space defined between the bobbin and the yoke in the cylinder. The coil, the bobbin and the yoke are fixed together by a resin.

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Номер записи: 20
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: 21
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: 22
09-05-2013 дата публикации

FREQUENCY SENSITIVE SHOCK ABSORBER

Номер: US20130112517A1
Автор: Henige Troy Joseph, Raker Ryan Kenneth
Принадлежит: PROGRESSIVE SUSPENSION, INC.

A shock absorber is disclosed herein with a frequency sensitive damping force that includes a cylinder containing a damping medium, a piston rod which is axially movable in the cylinder, and a piston assembly arranged for axial movement in the damping medium. The piston assembly is connected to the piston rod and divides the cylinder in a working space on each side of the piston. The piston assembly includes a flow path fluidly coupled to a frequency sensitive element movable relative to the piston assembly. 1. A frequency sensitive shock absorber , comprising:a cylinder containing a damping medium;a piston rod positioned for axial movement within the cylinder along a central axis;a piston assembly coupled to the piston rod and arranged for axial movement in the damping medium along the central axis to separate the cylinder into a first working space on a first side of the piston assembly and a second working space on a second side of the piston assembly, the piston assembly including:a first flow path allowing flow of the damping medium therein and extending from the first side to the second side;a second flow path distinct from the first flow path, allowing flow of the damping medium therein extending from the first side to the second side;a movable element positioned in the second flow path and movable along the second flow path with respect to the piston assembly.2. The shock absorber of claim 1 , wherein the piston assembly includes:a first piston body; anda second piston body cooperating with the first piston body.3. The shock absorber of claim 2 , wherein the first piston body defines an outer annular surface and the second piston body defines an inner annular surface facing the outer annular surface to define a cavity for movement of the movable element claim 2 , the cavity defining at least a portion of the second flow path.4. The shock absorber of claim 2 , wherein the second piston body defines the second flow path separate from the first piston body ...

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Номер записи: 23
09-05-2013 дата публикации

MOUNT STRUCTURE FOR VEHICLE DAMPER

Номер: US20130113145A1
Автор: Abe Kazunori, Uemori Kosuke
Принадлежит: HONDA MOTOR CO., LTD.

A mount structure for a vehicle damper, configured in such a manner that an end of the piston rod () of the damper () is supported by a vehicle-side member (). A nut () engaged with the male thread section () formed on a reduced diameter section () of the piston rod () collectively fastens upper and lower gripping members (), a collar member (), and upper and lower elastic sections () to the reduced diameter section (). An input from the damper body () side is transmitted to the vehicle body-side member () through a transmission member (). 1. A vehicle damper mount structure in which a damper comprises a damper body and a piston rod and the piston rod is supported at an end portion by a vehicle-body-side member ,characterized in that said vehicle damper mount structure comprises:the piston rod having a reduced-diameter section having a smaller outer diameter than a remaining section of the piston rod, and a male thread section formed on a distal end portion of the reduced-diameter section;upper and lower elastic sections threaded over the reduced-diameter section and sandwiching therebetween the vehicle-body-side member;a collar member threaded over the reduced-diameter section and extending through the upper and lower elastic sections to thereby define a tightening margin of the upper and lower elastic sections;upper and lower sandwiching members threaded over the reduced- diameter section and sandwiching therebetween the upper and lower elastic sections from outside;a fastening member screwed on the male screw section to collectively fasten the upper and lower sandwiching members, the collar member and the upper and lower elastic sections to the reduced-diameter section; anda transmission member, provided concentrically with the piston rod in such a manner as to astride over the lower elastic section axially of the piston rod, for transmitting an input from the damper body to the vehicle-body-side member without compressing the lower elastic section to above a ...

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Номер записи: 24
16-05-2013 дата публикации

MULTI-MODE SHOCK ASSEMBLY

Номер: US20130118847A1
Автор: Clavette Timothy, Guzik David, Krahenbuhl Eli, Quenzer Jonathan
Принадлежит:

An apparatus including a first gas chamber, a second gas chamber, and a coupler. The first gas chamber can include a sleeve including a first mounting point and a cylinder including a second mounting point. In a first mode, the coupler can isolate the first gas chamber and the second gas chamber during a first translation range of the cylinder into the sleeve, and fluidly couple the first gas chamber to the second gas chamber during a second translation range of the cylinder into the sleeve. In a second mode, the coupler can fluidly couple the first gas chamber to the second gas chamber during at least the first translation range and the second translation range of the cylinder into the sleeve. 1. An apparatus comprising: a sleeve including a first mounting point; and', 'a cylinder including a second mounting point;, 'a first gas chamber comprisinga second gas chamber; and [ isolate the first gas chamber and the second gas chamber during a first translation range of the cylinder into the sleeve; and', 'fluidly couple the first gas chamber to the second gas chamber during a second translation range of the cylinder into the sleeve; and, 'in a first mode, 'fluidly couple the first gas chamber to the second gas chamber during at least the first translation range and the second translation range of the cylinder into the sleeve.', 'in a second mode], 'a coupler configured to2. The apparatus of claim 1 , wherein the coupler comprises a valve.3. The apparatus of claim 2 , wherein the valve is configured to be activated by a remote cable.4. The apparatus of claim 1 , wherein the coupler comprises a first valve and a second valve.5. The apparatus of claim 1 , wherein the coupler is closed during the first translation range and the coupler is open during the second translation range.6. The apparatus of claim 1 , wherein the coupler comprises a solenoid valve.7. The apparatus of claim 1 , further comprising a damping mechanism associated with the cylinder.8. The apparatus of ...

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Номер записи: 25
16-05-2013 дата публикации

Lockable fluid strut with frangible lock

Номер: US20130119590A1
Автор: Kevin Thomas Braat, Ryan T. Anderson, Troy A. Waterman
Принадлежит: Suspa Inc

A fluid strut includes a frangible locking member including a generally cylindrical locking pin mounted to an outer cylindrical housing of the strut and extending radially inwardly toward a gas spring cylinder. The locking pin is movable between operative and inoperative positions. In the operative position, the spring-loaded frangible locking pin extends into engagement with the gas cylinder and can advance radially to a locking position once the outer housing extends beyond the location of the gas cylinder. In an inoperative position, the locking pin is held in a retracted position. The end of the locking pin has a reduced diameter, such that, if a purposeful force is placed upon the strut when in a locked position, the pin can shear, allowing the rod to be retracted within the cylinder and the closure member to be closed without damage.

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Номер записи: 26
16-05-2013 дата публикации

REBOUND STOPPER

Номер: US20130119593A1
Автор: Konno Yoshiro, Takesue Masami
Принадлежит: NOK CORPORATION

The present invention provides a rebound stopper which achieves reduction of hitting noise. 1. An approximately cylindrical urethane-made rebound stopper which is attached to an outer circumference of a rod arranged reciprocably in a cylinder while being arranged as having one end side faced to a rebound sheet which is arranged at the rod and having the other end side faced to a member to be hit which is arranged at an inner circumference of the cylinder and which absorbs impact as being compressed by the rebound sheet and the member to be hit as the other end side hitting the member to be hit when the rod is moved in a direction in which the rebound sheet approaches to the member to be hit ,wherein a plurality of protruding portions is arranged at each end side while the protruding portions at one end side and the protruding portions at the other end side are arranged at positions as being shifted in the circumferential direction.2. The rebound stopper according to claim 1 ,wherein the protruding portions are arranged at three positions in total at one end side at intervals of 120° in the circumferential direction and the protruding portions are arranged at three positions in total at the other end side at intervals of 120° in the circumferential direction while the protruding portions at the other end side are arranged at positions as being shifted by 60° in the circumferential direction respectively against arrangement positions of the protruding portions at the one end side.3. The rebound stopper according to claim 1 , wherein a plurality of penetration holes penetrating from the inside of a cylinder to the outside is formed at a rebound stopper body.4. (canceled)5. The rebound stopper according to claim 3 ,wherein a plurality of circular grooves is formed at an outer circumferential side of the rebound stopper body respectively at intervals in a direction in which the rod is extended, andthe plurality of penetration holes is formed at groove bottoms of the ...

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Номер записи: 27
06-06-2013 дата публикации

Valve structure of shock absorber

Номер: US20130140117A1
Автор: Chun Sung YU
Принадлежит: Individual

Disclosed herein is a valve structure of a shock absorber which respectively controls damping force at a low amplitude and a high amplitude when a piston valve is compressed and expanded and thus simultaneously satisfies ride comfort and stability of a vehicle. The valve structure of the shock absorber which has a cylinder filled with a working fluid and a piston rod provided with one end located within the cylinder and the other end extending to the outside of the cylinder, includes a main piston valve assembly installed at the end of the piston rod and operated to generate damping force varied according to moving velocity under the condition that the inside of the cylinder is divided into an upper chamber and a lower chamber, and a sub piston valve assembly moving together with the main piston valve assembly to generate damping force varied according to frequency.

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Номер записи: 28
27-06-2013 дата публикации

Vessel having extensions for supporting swim platform and concealing outboard engines

Номер: US20130160695A1
Автор: Bruce F. Thompson, Christopher M. Gratz, Linwood Addison Fuller, IV
Принадлежит: S2 Yachts Inc

A vessel, including a transom for mounting outboard engines thereto, is spanned on opposite sides by aft-facing hull extensions which extend beyond the engines and allow a swim platform to be positioned between the hull extensions. The design allows the outboard engines to be covered with an engine cover, which provides an attractive vessel design in which the outboard engines can be concealed with a cover, which may serve other functions, such as a seat or the like. The cover houses an engine cowl mist shield which includes a support frame surrounding one or more outboard engines. The frame includes aperture(s) with edges spaced from the cowl and a flexible member extending from the edges to the cowl below the air intake of the cowl, such that spray and mist from the operation of the vessel does not reach the air intake of the cowl.

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Номер записи: 29
27-06-2013 дата публикации

VALVE FOR SHOCK ABSORBERS

Номер: US20130161138A1
Автор: Barefoot Darek C.
Принадлежит: Eko Sport, Inc.

A shock absorber having a valve controlling the flow rate of fluid between a compression chamber and a rebound chamber in a housing and separated by a piston. The valve has an orifice component and a blocker component, one of which has a permanent magnet, and the other of which has a magnetically permeable material. Upon the application of sufficient fluid pressure, the blocker component is forced away from the orifice component, despite the magnetic bias that tends to attract the two structures. Because the magnetic force decreases as the two components are spaced farther apart, the shock absorber has excellent performance characteristics. Alternatively, a mechanical spring urges the blocker closed, and magnetic attraction between the blocker and a spaced opener mitigates the increased force of the compressed spring tending to close the valve. 1. A shock absorber having a housing with a cylindrical sidewall , comprising:(a) a valve in a fluid communication path between a first chamber containing fluid and a second chamber containing fluid, the valve having an orifice component and a moveable orifice blocker component, wherein the blocker has at least an open position in which fluid can flow through the orifice and a closed position in which the blocker substantially obstructs fluid from flowing through the orifice;(b) at least one biasing element disposed in the valve that exerts a biasing force urging the blocker toward said closed position and contributes to a total biasing force that urges said blocker in the closed position to remain in said closed position;(c) wherein at least one of the blocker and the biasing element is configured to move at least partially through an inertial effect of forces; and(c) wherein every component of said total biasing force is applied to the blocker by structures contained entirely within the shock absorber and every component of said total biasing force that is controlled so as to vary said total biasing force is controlled only ...

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Номер записи: 30
27-06-2013 дата публикации

DAMPING CYLINDER

Номер: US20130161139A1
Автор: Hirschmann Franz, Immler Dieter, Sedlacek Wolfgang
Принадлежит:

A damping cylinder () is provided. The damping cylinder () comprises a housing () and a piston cylinder () located within the housing (). A piston rod () extends from the housing () and the piston cylinder (). The damping cylinder () can also include a piston () coupled to the piston rod (). The piston () is movable within the piston cylinder () and separates the piston cylinder () into a first fluid chamber () and a second fluid chamber (). The damping cylinder () can further include a damping module () in fluid communication with the first and second fluid chambers (). The damping module () includes a pressure relief valve () configured to provide a first damping level and a directional control valve () configured to provide at least a second damping level. 1100. A damping cylinder () , comprising:{'b': '101', 'a housing ();'}{'b': 201', '101, 'a piston cylinder () located at least partially within the housing ();'}{'b': 103', '201', '101, 'a piston rod () extending from the piston cylinder () and the housing ();'}{'b': 203', '103', '101', '201', '210', '211, 'a piston () coupled to the piston rod () and movable within the housing () and separating the piston cylinder () into a first fluid chamber () and a second fluid chamber ();'}{'b': 102', '210', '211, 'claim-text': [{'b': '221', 'a pressure relief valve () configured to provide a first damping level; and'}, {'b': '222', 'a directional control valve () configured to provide at least a second damping level.'}], 'a damping module () in fluid communication with the first and second fluid chambers (, ) and including2100240210211232233102234232233234101. The damping cylinder () of claim 1 , further comprising a damping fluid reservoir () in fluid communication with the first and second fluid chambers ( claim 1 , ) via fluid lines ( claim 1 , ) and in fluid communication with the damping module () via a fluid line () claim 1 , wherein the fluid lines ( claim 1 , claim 1 , ) are located within the housing (). ...

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Номер записи: 31
27-06-2013 дата публикации

SHOCK ABSORBER

Номер: US20130161140A1
Автор: PARK Wan Sang
Принадлежит: MANDO CORPORATION

A shock absorber is provided. The shock absorber includes: a piston rod; an inner passage having an inlet port at an outer periphery of the piston rod; and a stopper installed at the outer periphery of the piston rod. The stopper is disposed to surround the inlet port of the inner passage, and an outer passage extending from an upper portion of the stopper to the inlet port is formed between the stopper and the piston rod. 1. A shock absorber comprising:a piston rod;an inner passage having an inlet port at an outer periphery of the piston rod; anda stopper installed at the outer periphery of the piston rod,wherein the stopper is disposed to surround the inlet port of the inner passage, and an outer passage extending from an upper portion of the stopper to the inlet port is formed between the stopper and the piston rod.2. The shock absorber according to claim 1 , wherein the stopper comprises:an annular stopper rubber having an inner peripheral groove defining a gap between the piston rod and the stopper rubber; anda stopper body supporting a lower portion of the stopper rubber.3. The shock absorber according to claim 2 , wherein the stopper body comprises:a lower bottom portion having a shaft hole into which the piston rod is fit;a wall portion formed upright on the lower bottom portion, such that the wall portion is spaced apart from the outer periphery of the piston rod; anda support portion extending radially from an upper end of the wall portion and supporting the stopper rubber.4. The shock absorber according to claim 3 , wherein:the inner peripheral groove is plurally formed at an inner periphery of the stopper rubber;inner peripheral portions of the stopper rubber, except for the inner peripheral groove, are fit to the outer periphery of the piston rod;an inside of the support portion is recessed relative to an edge thereof;the stopper rubber is mounted in the recessed region inside the support portion; anda gap between the wall portion and the piston rod ...

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Номер записи: 32
04-07-2013 дата публикации

DAMPERS WITH THERMAL EXPANSION COMPENSATION

Номер: US20130168194A1
Автор: Madau Barna B., Turner Roy A.
Принадлежит: Fox Factory, Inc.

A damper includes a housing bounding a primary chamber and a compensation chamber, the primary chamber including a first gas compartment and a control compartment that are separated by an expansion piston, the compensation chamber including a second gas compartment and an overflow compartment that are separated by a compensation piston. A piston rod has a first end slidably disposed within the control compartment. A first fluid path is in fluid communication with the overflow compartment so that when the expansion piston is in the first position, the expansion piston blocks fluid communication between the control compartment and the overflow compartment by way of the first fluid path and when the expansion piston is in the second position, the hydraulic fluid can freely flow from the control compartment to the overflow compartment by way of the first fluid path. 1. A damper comprising:a housing bounding a primary chamber and a compensation chamber, the primary chamber comprising a first gas compartment and a control compartment each having a volume, the compensation chamber comprising a second gas compartment and an overflow compartment;an expansion piston movably disposed within the primary chamber so as to separate the first gas compartment from the control compartment, the volume of the first gas compartment and the control compartment each being adjustable based on movement of the expansion piston, the expansion piston being movable between a first position and a second position;a compensation piston movably disposed within the compensation chamber so as to separate the second gas compartment from the overflow compartment, the volume of the second gas compartment and the overflow compartment each being adjustable based on movement of the compensation piston;a gas disposed within the first and second gas compartments;hydraulic fluid disposed within the control compartment and the overflow compartment;a piston rod having a first end slidably disposed within the ...

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Номер записи: 33
01-08-2013 дата публикации

GAS SPRING AND DAMPING FORCE GENERATING MECHANISM

Номер: US20130192940A1
Автор: FURUKAWA Kei, Inoue Kazuya
Принадлежит: Showa Corporation

A tubular piston mounted at one end of a rod accommodated inside a cylinder and partitioning the space inside the cylinder includes first groove and second groove recessed from an outer circumferential surface thereof and aligned side by side along a centerline direction of the cylinder, and a communication passage communicating an end face on the side of an opening in the centerline direction of the cylinder with one of the two grooves (second groove) formed on the side of the opening. A rubber-made annular sealing member having an outer circumferential surface contacting an inner circumferential surface of the cylinder is fitted in the second groove. A resin-made restrictor ring that is a C-shaped member fitted in the first groove has an outer circumferential surface positioned closer to the inner circumferential surface of the cylinder than the outer circumferential surface of the piston. 1. A gas spring , comprising:a tubular cylinder;a rod having one end accommodated inside said cylinder and the other end protruding from an opening of the cylinder;a tubular partition member mounted at said one end of said rod and partitioning a space inside said cylinder,said partition member including a plurality of grooves recessed from an outer circumferential surface thereof and aligned side by side along a centerline direction of the cylinder, and a communication passage communicating an end face of the partition member on a side of said opening of the cylinder in the centerline direction with one of the plurality of grooves that is formed on the side of the opening;a rubber-made annular member fitted in one of said plurality of grooves of said partition member communicated with the end face on said side of the opening by said communication passage, and having an outer circumferential surface contacting an inner circumferential surface of said cylinder; anda resin-made fitting member formed in a C-shape and fitted in one of said plurality of grooves of said partition ...

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Номер записи: 34
01-08-2013 дата публикации

Thrust bearing and suspension for vehicle

Номер: US20130195393A1
Автор: Bruno Montboeuf, Christophe Houdayer, Richard Corbett, Samuel Viault
Принадлежит: SKF AB

The suspension thrust bearing device for a motor vehicle comprises a rolling bearing 22 forming a thrust bearing and provided with an upper ring, with a lower ring and with at least one row of rolling elements arranged between the rings, a bearing cap 18 in contact with the upper ring, and a support cap 20 in contact with the lower ring and forming a bearing means for a suspension spring 12. At least one of the said caps comprises a body made of synthetic material and an insert 34 covered at least in part by the said body. The insert 34 comprises stiffening ribs 44 in order to reinforce the mechanical strength of the said cap with respect to the axial loads resulting from the forces exerted by the suspension spring.

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Номер записи: 35
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: 36
08-08-2013 дата публикации

PNEUMATIC VIBRATION DAMPING APPARATUS

Номер: US20130200248A1
Автор: POLZER Benjamin David, Walker Peter White, WEST Gordon Fox
Принадлежит: VALE S.A.

A pneumatic vibration isolating suspension is disclosed for supporting a payload on a moving carrier while suppressing the transmission of vibrations in the 1 to 50 Hz band between the carrier and the payload. The disclosed invention can be deployed in the air in a towed carrier or sonde, and operated from aircraft power, making it a suitable platform for airborne geophysical instrumentation. It also has particular application to airborne electromagnetic surveying operating in the same frequency band because the sensor vibrations that result in noise created by the modulation of the sensor coupling with the earth's magnetic field are suppressed. Furthermore, the invention can be constructed from resistive composite materials and non-magnetic metals, so it can be operated without producing significant modification to the ambient electromagnetic field being measured. 1. A vibration damping system , comprising:a cylinder having a first coupling joint, a second coupling joint, and a piston separating an upper chamber and a lower chamber;a first pressure regulator in communication with an air supply and the upper chamber to maintain a first pressure in the upper chamber;a second pressure regulator in communication with the air supply and the lower chamber to maintain a second pressure in the lower chamber;an upper accumulator capable of holding pressurized air in communication with the upper chamber;a lower accumulator capable of holding pressurized air in communication with the lower chamber;wherein the first coupling joint couples the cylinder to a frame, and the second coupling joint couples the cylinder to a basket connectable to a payload; andwherein an interaction of the piston with the first pressure in the upper chamber and the second pressure in the lower chamber isolates vibrations of the frame from the basket.2. The system of claim 1 , wherein the vibrations are in a frequency range of 1 to 50 Hz.3. The system of claim 1 , wherein the vibrations are in a ...

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Номер записи: 37
15-08-2013 дата публикации

VARIABLE DAMPING FORCE DAMPER

Номер: US20130206521A1
Автор: Nakajima Kiyoshi
Принадлежит: HONDA MOTOR CO., LTD

A first hydraulic fluid passage includes an annular fluid passage, an inlet hole and a notch of a magnetic passage forming ring, another notch and a communication hole of a non-magnetic passage forming ring, an outlet hole and a discharge hole of a valve plate, another discharge hole of a valve plate retainer, and a first fluid passage of a one-way valve retainer. On the other hand, a second hydraulic fluid passage includes a second fluid passage of the one-way valve retainer, and the annular fluid passage. 1. A variable damping-force damper comprising:a cylinder including a hydraulic fluid sealed therein;a piston reciprocatably disposed in the cylinder and configured to partition the cylinder into a first fluid chamber and a second fluid chamber, the piston including a sliding contact portion configured to come into sliding contact with an inner circumferential surface of the cylinder; anda piston rod secured to the piston at one end thereof, the piston comprising:an inner yoke including a magnetic material,a magnetic coil disposed along an outer circumference of the inner yoke,an outer yoke including a magnetic material and surrounding the magnetic coil,a valve seat being formed integrally with the inner yoke or the outer yoke,a valve plate including a magnetic material, pressed to and brought into contact with the valve seat and configured to form an opening between the valve seat and the valve plate at a time of valve opening operation,valve holder configured to support the valve plate and having the sliding contact portion on an outer circumferential surface thereof, andan annular fluid passage formed between an outer circumferential surface of the outer yoke and the inner circumferential surface of the cylinder to communicate with the first fluid chamber, and partitioned from the second fluid chamber by the sliding contact portion,wherein the variable damping-force damper controls a damping force by supplying a current to the magnetic coil, the damping force ...

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Номер записи: 38
15-08-2013 дата публикации

Gas Spring and Gas Spring Components

Номер: US20130207326A1
Автор: Cotter Jonathan P.
Принадлежит: DADCO, Inc.

A gas spring for forming equipment, a piston rod for the gas spring, and a shock collar for the gas spring carried by the piston rod. The shock collar may be resiliently flexible, and plastically deformable so as to at least partially collapse, and the piston rod may include features to disrupt a gas spring seal upon at least partial collapse of the shock collar. 1. A gas spring for forming equipment , comprising:a casing;a piston rod housing received at least in part in the casing;a piston rod received at least in part in the casing and extending through the piston rod housing for reciprocation between extended and retracted positions over a cycle of the gas spring including a retraction stroke and an extension stroke, and including a body extending out of the casing through the piston rod housing and having an outer axial end of the piston rod disposed outside of the casing, and a head at an inner axial end of the piston rod; anda shock collar carried by the piston rod at an axial location along the piston rod between the piston rod head and the piston rod housing, wherein the shock collar surrounds a portion of the piston rod, is axially spaced from the housing in the retracted position of the rod, and engages the housing in the extended position of the rod, and wherein the shock collar includes a collapsible portion that is flexible and axially displaceable, and a mounting portion extending axially from the collapsible portion and mounted to the piston rod.2. The gas spring of claim 1 , further comprising a piston guide bearing carried by the head of the piston rod.3. The gas spring of claim 1 , further comprising a piston guide bearing carried by the shock collar.4. The gas spring of claim 1 , further comprising: the piston rod housing having a piston rod through bore,', 'a guide bushing carried by the housing in the through bore, and', 'a rod seal carried by the housing; and, 'a guide and seal assembly received at least in part in the casing, sealingly coupled ...

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Номер записи: 39
15-08-2013 дата публикации

SUSPENSION THRUST BEARING DEVICE AND MCPHERSON STRUT EQUIPPED WITH SUCH A DEVICE

Номер: US20130207365A1
Автор: Houdayer Christophe, Jadeau Jean-Luc, Maury Herve, Montboeuf Bruno, Soudee Jean-Marc, Vidot Desire
Принадлежит: AKTIEBOLAGET SKF

The present invention concerns a suspension thrust bearing device adapted to receive a shock absorber piston rod along a main axis (X), the device including a single bearing forming an axial thrust bearing and including an inner race, an outer race and rolling members disposed between the inner race and the outer race, and at least one intermediate member adapted to transmit to the inner race essentially axial forces exerted on the device by a suspension spring. One of the inner race and the intermediate member extend(s) radially beyond the outer race in the direction of the main axis (X), forming a bearing surface for fixing and centring the shock absorber piston rod relative to the device. The invention also concerns a motor vehicle McPherson strut including a shock absorber and a suspension thrust bearing device as referred to above. 11. A suspension thrust bearing device adapted to receive a shock absorber piston rod along a main axis (X) , the device comprising:a single bearing forming an axial thrust bearing and including an inner race, an outer race and rolling members disposed between the inner race and the outer race, andat least one intermediate member adapted to transmit to the inner race essentially axial forces exerted on the device by a suspension spring, wherein{'b': '1', 'at least one of the inner race and the intermediate member extend(s) radially beyond the outer race in the direction of the main axis (X), forming a bearing surface for fixing and centring the shock absorber piston rod relative to the device.'}21. The device according to claim 1 , wherein at least one of the inner race and the intermediate member extends axially at least as far as the outer race along the main axis (X).31. The device according to claim 1 , wherein the inner race extends radially beyond the outer race and the intermediate member in the direction of the main axis (X) to form the bearing surface for fixing and centring the shock absorber piston rod relative to the ...

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Номер записи: 40
29-08-2013 дата публикации

SHOCK ABSORBER HAVING UNIDIRECTIONAL FLUID FLOW

Номер: US20130220750A1
Автор: Hall Everett A.
Принадлежит: Oneiric Systems, Inc.

A twin-tube shock absorber comprising an outer tube which houses an inner tube. The inner tube forms an annulus area between the outer tube and the inner tube, and includes a check valve for allowing a fluid to flow unidirectionally from the annulus area to the interior volume of the inner tube. The shock absorber includes a piston which is slidably disposed within the inner tube and divides the interior volume into a rod side chamber and a cap side chamber. The piston includes a check valve allowing the fluid to flow unidirectionally from the cap side chamber to the rod side chamber. A flow regulator is disposed about the inner tube for allowing the unidirectional flow of fluid from the rod side chamber to the annulus area, wherein the flow regulator provides a resistance against the flow of the fluid from the rod side chamber to the annulus area. 1. A shock absorber comprising:an outer tube having a first end and a second end;an inner tube housed within the outer tube, the inner tube having an interior surface, a first end, and a second end which define an interior volume, the inner tube forming an annulus area between the outer tube and the inner tube, the inner tube having a check valve which allows a fluid to flow unidirectionally from the annulus area to the interior volume of the inner tube;a piston slidably disposed within the inner tube, the piston having an outer surface dimensioned to form a barrier against the interior surface of the inner tube, the piston dividing the interior volume into a rod side chamber and a cap side chamber, the piston having a piston check valve which allows the fluid to flow unidirectionally from the cap side chamber to the rod side chamber;a piston rod secured to the piston and extending outwardly past the first end of the outer tube;a flow regulator secured to the inner tube which allows the unidirectional flow of the fluid from the rod side chamber to the annulus area and which provides a resistance against the flow of the ...

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Номер записи: 41
26-09-2013 дата публикации

TRACTION CONTROL VALVE FOR HYDRAULIC SHOCK ABSORBER

Номер: US20130248307A1
Автор: Abreu Guilherme Caravieri de, Vannucci Sergio Nelo
Принадлежит:

The present shock absorber has a pressure tube with a compression chamber and a traction chamber, separated by a piston provided with a traction passage. The valve includes: a counter pressure chamber loaded by piston, provided with an upper opening and a control base, open to the compression chamber, where a hollow sealing plug is displaceable between a closed position, hence communicating traction passage only with the counter pressure chamber, and open positions; a return spring driving sealing plug to its closed position; and an inertial seal, inside the counter pressure chamber and displaceable from inoperative position, away from the control base, to operative position, where it blocks said base, increasing hydraulic pressure in the counter pressure chamber to hydraulically drive sealing plug to its closed position when piston is subjected to a given upward acceleration. 110202220515556605122602265206070555560207570aa. Traction control valve for a telescopic hydraulic shock absorber comprising a pressure tube () internally divided into a compression chamber (CC) and a traction chamber (TC) , a piston () axially hollow with a traction passage () , said valve comprising: a counter pressure chamber (CPC) loaded by the piston () and provided with an upper opening () , a lower control base () and a relief orifice () open to the compression chamber (CC); a sealing plug () , axially hollow and displaceable , inside the counter pressure chamber (CPC) , between a closed position blocking communication by upper opening () between traction passage () and compression chamber (CC) and keeping the first in communication with the counter pressure chamber (CPC) by sealing plug () , and open positions communicating traction passage () with compression chamber (CC); a return spring () fastened to the piston () and driving sealing plug () to its closed position; an inertial seal () to be displaced downwards , inside the counter pressure chamber (CPC) , from an inoperative ...

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Номер записи: 42
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: 43
10-10-2013 дата публикации

Adjustment-free cushioning air cylinder

Номер: US20130264157A1
Автор: Hsin-Fa SHEN
Принадлежит: Medi GmbH and Co KG, PRO LIMB INTERNATIONAL CORP

An adjustment-free cushioning air cylinder includes an air cylinder body, a piston, a first check valve, an upper air way, a second check valve and a lower air way. An air chamber is formed inside the air cylinder body. The piston slides in the air chamber. One end of the piston extends to the external of the air cylinder body. The piston does a reciprocating movement in the air chamber and divides the air chamber into an upper air chamber and a lower air chamber. The first check valve is disposed in the piston, one end of the first check valve is connected to the upper air chamber, and the other end is connected to the lower air chamber. The upper air way connects the upper air chamber with the outside. The adjustment-free cushioning air cylinder of the invention does not need to adjust the entering flow rate of the air, but the entering flow rate can be automatically adjusted to produce cushioning resistance as the user is walking according to the walking speed. The present invention has a simple structure, high cushioning performance, lower cost, and is not easy to damage, thus can greatly improve the product competitiveness.

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Номер записи: 44
07-11-2013 дата публикации

METHOD AND APPARATUS FOR AN ADJUSTABLE DAMPER

Номер: US20130292218A1
Автор: ERICKSEN Everet Owen, FOX Robert C., Marking John
Принадлежит:

A system for controlling vehicle motion is described. The system includes: a first set of sensors coupled with a vehicle, the first set of sensors configured for sensing the vehicle motion; and a vehicle suspension damper coupled with the first set of sensors, the vehicle suspension damper configured for adjusting a damping force therein, the vehicle suspension damper comprising: a primary valve; a pilot valve assembly coupled with the primary valve, the pilot valve assembly configured for metering a flow of fluid to the primary valve, in response to at least the sensing; and an orifice block coupled with the primary valve and comprising a control orifice there through, the control orifice configured for operating cooperatively with the pilot valve assembly in the metering the flow of fluid to the primary valve. 1. A system for controlling vehicle motion , said system comprising:a first set of sensors coupled with a vehicle, said first set of sensors configured for sensing said vehicle motion; and a primary valve;', 'a pilot valve assembly coupled with said primary valve, said pilot valve assembly configured for metering a flow of fluid to said primary valve, in response to at least said sensing; and', 'an orifice block coupled with said primary valve and comprising a control orifice there through, said control orifice configured for operating cooperatively with said pilot valve assembly in said metering said flow of fluid to said primary valve., 'a vehicle suspension damper coupled with said first set of sensors, said vehicle suspension damper configured for adjusting a damping force therein, said vehicle suspension damper comprising2. The system of claim 1 , wherein said pilot valve assembly is configured for said metering a flow of fluid to said primary valve in response to at least any of the following: an electro-mechanical device; a manually adjustable needle and jet arrangement; and a pressure signal from an outside pressure source.3. The system of claim 1 , ...

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Номер записи: 45
14-11-2013 дата публикации

VALVE ARRANGEMENT

Номер: US20130299291A1
Автор: Ewers Benny, Malmborg Håkan, Sönsteröd Lars
Принадлежит: Ohlins Racing AB

A valve arrangement controls a main flow of damping medium in a shock absorber between two chambers. The valve arrangement has an actuator positioned in an actuator chamber that is in fluid communication with the two chambers. A pilot valve has a pilot chamber that is in fluid communication with the actuator chamber. A restrictor arrangement restricts flow from the actuator chamber to the pilot chamber. A sub-valve cooperating with the restrictor arrangement to control flow between two flow paths. 131-. (canceled)32. A valve arrangement for controlling a main flow of damping medium in a shock absorber , the valve arrangement comprising:a first actuator having a first actuator chamber communicating with a first damping chamber and a second damping chamber, the first actuator configured to actuate on the main flow of damping medium during a first stroke in response to a first actuating pressure in the first actuator chamber;a pilot valve configured to control the first actuating pressure, the pilot valve having a pilot chamber in fluid communication with the first actuator chamber;a first restriction arrangement for restricting a flow of damping medium from the first actuator chamber to the pilot chamber, the first restriction arrangement configured to provide a first flow path restricted by a first flow restriction area during a first stroke and to provide a second flow path restricted by a second flow restriction area during a second stroke; anda first sub valve arrangement having a first valve member, the first valve member being in a first end position during the first stroke and being in a second end position during the second stroke, wherein the first valve member is configured to cooperate with the first restriction arrangement such that the flow of damping medium from the first actuator chamber to the pilot chamber flows via the first flow path when the first valve member is in the first end position and flows via the second flow path when the first valve ...

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Номер записи: 46
26-12-2013 дата публикации

Shock absorber and method for operating a shock absorber in particular for a bicycle

Номер: US20130341138A1
Автор: Gernot Elsensohn, Juergen Poesel, Martin Walthert, Stefan Battlogg
Принадлежит: DT Swiss Inc

Shock absorber and method for operating a shock absorber for a bicycle wherein a relative motion of a first and a second component interconnected via a damper device is dampened. The damper device comprises a controllable damping valve having at least one field generating device with which a field-sensitive medium can be influenced for influencing a damping force of the damper device by applying a field intensity of the field generating device. A parameter for the current speeds of the first and second components relative to one another is obtained in real time. For damping, a current field intensity to be set is derived in real time by means of the parameter from a characteristic damper curve and by means of the field generating device the field intensity to be currently set is generated in real time for setting in real time a damping force which results from the predetermined characteristic damper curve at the parameter obtained.

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Номер записи: 47
26-12-2013 дата публикации

SHOCK ABSORBER

Номер: US20130341139A1
Автор: NOGUCHI Nobuhiro
Принадлежит: KAYABA INDUSTRY CO., LTD.

A shock absorber that absorbs a vibration using a working fluid charged into a first chamber and a second chamber comprises a tube body, an inserted body, a tip end of which is inserted into the tube body from an end portion of the tube body, and a partition wall portion that is provided on the tip end of the inserted body to be capable of sliding within the tube body and partitions an interior of the tube body into the first chamber and the second chamber. The shock absorber comprises a connecting portion that is provided within a partition wall portion sliding region of the tube body and connects the first chamber and the second chamber when the partition wall portion passes thereby. 1. A shock absorber that absorbs a vibration using a working fluid charged into a first chamber and a second chamber and comprises a tube body , an inserted body , a tip end of which is inserted into the tube body from an end portion of the tube body , and a partition wall portion that is provided on the tip end of the inserted body to be capable of sliding within the tube body and partitions an interior of the tube body into the first chamber and the second chamber , the shock absorber comprising:an outside seal that is provided on an outer peripheral surface of the partition wall portion and contacts an inner peripheral surface of the tube body slidingly; anda connecting portion that is formed on the inner peripheral surface of the tube body and temporarily connects the first chamber and the second chamber when the outside seal passes the connecting portion,wherein a width of the connecting portion is set to be larger than a thickness of the outside seal, andair is charged into the first chamber and the second chamber as the working fluid.2. The shock absorber as defined in claim 1 , wherein the width of the connecting portion is set to be smaller than a thickness of the partition wall portion.3. The shock absorber as defined in claim 2 , wherein the connecting portion is formed as ...

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Номер записи: 48
26-12-2013 дата публикации

ADJUSTABLE DAMPING VALVE ARRANGEMENT

Номер: US20130341141A1
Автор: GÜTHER MARKUS, HEYN Steffen
Принадлежит:

An adjustable damping valve arrangement for a vibration damper comprises an actuator which exerts an actuating force on an auxiliary valve body of an auxiliary valve. The auxiliary valve influences a closing force on a main stage valve. A pressure depending on the pressure level in a working space of the vibration damper acts on at least one pressure-impinged closing surface of the main stage valve via a flow connection. The flow connection is carried out so as to be functionally parallel to an incident flow of the main stage valve, and a flow-in opening of the flow connection is oriented at an angle of at least 60° to the flow direction into the main stage valve so that only a static pressure acts on the closing surface of the main stage valve. 1. An adjustable damping valve arrangement for a vibration damper comprising:{'b': '15', 'an actuator ();'}{'b': 23', '21', '37', '15', '21', '23', '37, 'an auxiliary valve () comprising an auxiliary valve body () and a main stage valve () having a flow direction of a damping medium into said main stage valve and at least one pressure-impinged closing surface; said actuator () exerting an actuating force on said auxiliary valve body () of said auxiliary valve () and said auxiliary valve influencing a closing force on said main stage valve (); and'}{'b': 65', '9', '10', '37', '65', '37', '119', '37', '37, 'a flow connection () for permitting a pressure depending on the pressure level in a working space (, ) of said vibration damper to act on at least one of said pressure-impinged closing surfaces of said main stage valve (); said flow connection () constructed so as to be functionally parallel to an incident flow of said main stage valve () and comprising a flow-in opening () oriented at an angle of at least 60° to the flow direction into said main stage valve () so that only a static pressure acts on said at least one closing surface of said main stage valve ().'}2121119. The damping valve arrangement according to claim 1 , ...

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Номер записи: 49
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: 50
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: 51
02-01-2014 дата публикации

DAMPING VALVE

Номер: US20140000997A1
Автор: Tanaka Kazuhiro
Принадлежит: KAYABA INDUSTRY CO., LTD.

A damping valve includes a piston, a damping passage, a piston rod, a bypass, and a relief valve, and the bypass includes a valve hole extending in the axial direction of the piston rod and a horizontal hole opening from a side part of the piston rod and leading to the valve hole, and the relief valve includes an annular valve seat provided on the side of a pressure side chamber with respect to an opening of the horizontal hole, a valve body slidably inserted on the side of an extension side chamber with respect to the annular valve seat and partitioning a back pressure chamber in the valve hole, a bias spring biasing the valve body toward the annular valve seat, and a throttle communicating the back pressure chamber with the extension side chamber. 1. A damping valve , comprising:a piston movably inserted into a cylinder and partitioning an interior of the cylinder into an extension side chamber and a pressure side chamber;a damping passage provided in the piston and communicating between the extension side chamber and the pressure side chamber;a piston rod movably inserted into the cylinder, the piston rod having one end coupled to the piston;a bypass provided in the piston rod and communicating the pressure side chamber with the extension side chamber by bypassing the damping passage; anda relief valve releasing the bypass upon an action of a pressure of the pressure side chamber, whereinthe bypass includes a valve hole opening from the one end of the piston rod facing the pressure side chamber and extending in the axial direction of the piston rod, and a horizontal hole opening from a side part of the piston rod facing the extension side chamber and leading to the valve hole, andthe relief valve includes an annular valve seat provided in the middle of the valve hole on the side of the pressure side chamber with respect to an opening of the horizontal hole, a valve body slidably inserted into the valve hole on the side of the extension side chamber with respect ...

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Номер записи: 52
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: 53
09-01-2014 дата публикации

VALVE DEVICE

Номер: US20140008556A1
Автор: Ewers Benny, Sönsteröd Lars
Принадлежит: Ohlins Racing AB

A valve device for electrically regulating a pressure in a hydraulic fluid flow through the valve device in response to an actuating force during a normal operation and mechanically regulating said pressure during a fail-safe operation when no actuating force is present is disclosed. The valve device has a valve chamber. A first valve member is movable within the valve chamber in an axial direction to interact with a first valve seat in response to the actuating force in order to restrict the hydraulic fluid flow into the valve chamber during normal operation. The first valve member is spring-loaded away from the second seat in a direction opposite that of the actuating force such that the first valve member is movable in the axial direction. A second valve member forms a movable chamber wall portion defining a part of the valve chamber. The second valve member is spring-loaded in the direction of the actuating force. The second valve member has a through hole for allowing hydraulic fluid flow out of the valve chamber during normal operation. The spring-loaded first valve member is arranged to close the flow passage during fail-safe operation such that the pressure is mechanically regulated by the second valve member acting on the second valve seat. 120-. (canceled)21. A valve device for electrically regulating pressure of a hydraulic fluid flow through the valve device in response to an actuating force during normal operation and for mechanically regulating pressure during fail-safe operation when no actuating force is present , the valve device comprising:a valve chamber;a first valve member movable within the valve chamber in an axial direction and configured to interact with a first valve seat in response to an actuating force to allow hydraulic fluid flow into the valve chamber during normal operation, the first valve member being spring-loaded in a direction opposite of a direction of the actuating force; anda second valve member forming a movable wall portion ...

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Номер записи: 54
20-02-2014 дата публикации

VALVE ASSEMBLY OF SHOCK ABSORBER

Номер: US20140048365A1
Автор: KIM Tae Ju
Принадлежит: MANDO CORPORATION

A valve assembly of a shock absorber can achieve both an effect of varying an attenuation force according to a frequency region of vibration or shock transferred to the shock absorber during the driving of an automobile and an effect of varying an attenuation force according to an additional pressure and can increase the attenuation force in response to an instantaneous input of a large amplitude behavior. The valve assembly includes: a valve housing coupled to a piston rod having an orifice hole and a space formed therein, the space having an open lower end to communicate with the orifice hole; a frequency sensitive valve unit including a free piston configured to vertically partition the space; and a sub-valve unit coupled to the lower end of the space, wherein operation of the sub-valve unit is controlled by ascending and descending of the free piston. 1. A valve assembly of a shock absorber , comprising:a valve housing coupled to a lower end of a piston rod having an orifice hole formed through the piston rod, the valve housing having a space formed therein, the space having an open lower end to communicate with the orifice hole;a frequency sensitive valve unit including a free piston configured to vertically partition the space into an upper chamber and a lower chamber and a lower stopper extending downward from a center of the free piston; anda sub-valve unit coupled to the lower end of the space and having a compression orifice and an extension orifice,wherein operation of the sub-valve unit is controlled by ascending and descending of the free piston.2. The valve assembly of claim 1 , wherein the free piston comprises a support portion having upper and lower surfaces claim 1 , which support ends of elastic members claim 1 , respectively claim 1 , and a side wall extending downward from a circumference of the support portion.3. The valve assembly of claim 2 , wherein the sub-valve unit comprises a valve body coupled to the lower end of the space and a suction ...

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Номер записи: 55
20-02-2014 дата публикации

PISTON VALVE OF SHOCK ABSORBER

Номер: US20140048366A1
Автор: LEE Jin Kee, YOON Kyong Hag
Принадлежит: MANDO CORPORATION

Provided is a piston valve of a shock absorber which can achieve both an effect of varying an attenuation force according to a pressure and an effect of varying an attenuation force according to a frequency region. The piston valve includes: a main valve unit coupled to a lower end of a piston rod formed with an orifice hole, to divide an inside of a cylinder into an extension chamber and a compression chamber, the main valve unit generating an attenuation force according to a difference of pressure between the extension chamber and the compression chamber; and a frequency sensitive valve unit installed at one side of the main valve unit and configured to generate an attenuation force according to a frequency of hydraulic fluid delivered through the orifice hole of the piston rod, wherein the frequency sensitive valve unit is installed within the main valve unit. 1. A piston valve of a shock absorber , comprising:a main valve unit coupled to a lower end of a piston rod formed with an orifice hole, to divide an inside of a cylinder into an extension chamber and a compression chamber, the main valve unit generating an attenuation force according to a difference of pressure between the extension chamber and the compression chamber; anda frequency sensitive valve unit installed at one side of the main valve unit and configured to generate an attenuation force according to a frequency of hydraulic fluid delivered through the orifice hole of the piston rod,wherein the frequency sensitive valve unit is installed within the main valve unit.2. The piston valve of claim 1 , wherein a valve housing having a space which communicates with the orifice hole is coupled to the lower end of the piston rod claim 1 , the main valve unit is coupled to an outer circumferential surface of the valve housing claim 1 , and the frequency sensitive valve unit is installed in the space of the valve housing.3. The piston valve of claim 2 , wherein the valve housing and the main valve unit are ...

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Номер записи: 56
06-03-2014 дата публикации

HYDRAULIC SHOCK ABSORBER AND VALVE

Номер: US20140060985A1
Автор: Itsubo Noriyuki, OSHIE Yuki, TANABE Yasuyuki
Принадлежит: Showa Corporation

A hydraulic shock absorber includes a valve body having a second valve which is fixed to the valve body on a central axis CL side of the second valve and covers an open end of a second oil passage in the valve body. The second valve is deformable in a direction away from the valve body when the valve is applied with force from the valve body side. The second valve is configured: (a) to include a first through-hole formed in a circumferential direction thereof, (b) have lower stiffness, with respect to force from the valve body side, on a second through-hole side than on a third through-hole side and (c) such that a first corner portion C of the first through-hole has higher stiffness than a second corner portion C of the first through-hole positioned on the third through-hole side. 1. A hydraulic shock absorber comprising:a partitioning member which partitions a closed space and having a passage through which the closed space is continuous with an outside; anda valve which is a member fixed to the partitioning member on a central side of the valve and covering an open end of the passage in the partitioning member, the valve being deformable in a direction away from the partitioning member when the valve is applied with force from the partitioning member side, and the valve being configured to have a through-hole formed in a circumferential direction thereof and having lower stiffness with respect to the force exerted from the partitioning member side on one side of the through-hole than on another side of the through-hole relative to a virtual center line connecting a circumferential center of the through-hole with a central axis of the valve,wherein the valve is configured in such a manner that a first end portion of the through-hole positioned on the one side of the through-hole has higher stiffness than a second end portion of the through-hole positioned on the another side of the through-hole.2. The hydraulic shock absorber according to claim 1 , wherein the ...

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Номер записи: 57
06-03-2014 дата публикации

Suspension fork, in particular for a bicycle

Номер: US20140062056A1
Автор: Juergen Poesel, Martin Walthert, Michael Kieber, Stefan Battlogg
Принадлежит: DT Swiss Inc

A damper device for a bicycle suspension fork has a magneto-rheological damping medium. A piston partitions a damper chamber into first and second chambers that are connected via a return duct, an adjustable throttle valve, and a transfer duct. A field-generating device generates a magnetic field in a damping duct of the throttle valve. A one-way circuit is provided for the damping medium, with two one-way valves disposed to cause a same direction of circulation of the damping fluid both when the piston rod plunges into and retracts from the damper chamber. A first one-way valves in the piston allows a flow of the damping medium from the second into the first chamber. A second one-way valve in the transfer duct allows a damping medium flow from the transfer duct into the second chamber. The adjustable throttle valve control the plunge and the retraction of the piston rod.

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Номер записи: 58
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: 59
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: 60
20-03-2014 дата публикации

MAGNETO-RHEOLOGICAL DAMPING ASSEMBLY

Номер: US20140076676A1
Автор: BAILLY Frederic, Foister Robert T., NEHL THOMAS WOLFGANG, Tessier Guy
Принадлежит:

A magneto-rheological damping assembly including a piston () defining a core (). A pair of spaced electromagnets () are disposed about the core () and are connected to a controller () for selectively generating a magnetic flux. A pair of permanent magnets () are disposed about the electromagnets () and a pole segment () is disposed therebetween. A main gap () extends through the piston () through which magneto-rheological fluid () is conveyed. Flux generated by the magnets controls the viscosity of the fluid in the main gap () to control the damping force of the assembly. The controller () defines an off operating state for cancelling the flux from the permanent magnets () across the main gap (). The core () and the pole segment () define a closed auxiliary gap () extending axially between the electromagnets () and radially between the core () and the internal pole segment () for preventing leakage of flux across the main gap () when the assembly is in the off operating state. 1. A magneto-rheological damping assembly comprising;a piston extending along an axis and defining a compression end and a rebound end,said piston defining a core,a pair of electromagnets spaced axially from one another and disposed annularly about and engaging said core for selectively generating a magnetic flux,a permanent magnet disposed annularly about each of said electromagnets for generating a magnetic flux,an internal pole segment constructed of a material having a high magnetic permeability for concentrating the magnetic flux from said electromagnets and said permanent magnets disposed axially between said permanent magnets,said piston defining a main gap extending axially between said compression end and said rebound end of said piston and disposed adjacent said pole segment for conveying fluid through said piston wherein the flux from said magnets changes the viscosity of the fluid in said main gap,a controller for controlling the magnetic flux generated by said electromagnets,said ...

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Номер записи: 61
20-03-2014 дата публикации

Valve structure

Номер: US20140076677A1
Автор: Hideaki Takeuchi, Yoshihiro Shibata, Yukimasa Kobayashi
Принадлежит: Kayaba Industry Co Ltd

A valve structure includes a valve disc partitioning an interior of a damper into a one-side chamber and an other-side chamber, a plurality of one-side ports and a plurality of other-side ports communicating between the one-side chamber and the other-side chamber, a one-side leaf valve opening and closing only the one-side ports, and an other-side leaf valve opening and closing only the other-side ports, the one-side ports and the other-side ports are alternately arranged in the valve disc along the circumferential direction, and a plurality of through holes formed in the valve disk is opened from the inner circumferential side of openings of all the other-side ports and communicates with the one-side ports.

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Номер записи: 62
03-04-2014 дата публикации

MAGNETORHEOLOGICAL FLUID ELASTIC LAG DAMPER FOR HELICOPTER ROTORS

Номер: US20140090937A1
Автор: Chen Peter Che-Hung, Hu Wei, Kothera Curt Steven, Wereley Norman Mark
Принадлежит:

A MagnetoRheological Fluid Elastic (MRFE) lag damper system for adaptive lead-lag damping of helicopter main rotors. Embodiments include snubber dampers especially for hingeless helicopter rotors, and concentric bearing dampers. The snubber lag dampers include a flexible snubber body defining a cavity, a flexible or rigid interior (e.g., center) wall subdividing the cavity, and a flow valve in the interior wall or external to the cavity. The flexible snubber body may comprise elastomeric materials and metal rings stacked together to create a sealed MR fluid cavity. The shear deformation of the snubber body induces MR fluid flow through the valve, controlled by a magnetic field in the valve. An MRFE concentric bearing damper is also disclosed, comprising a pair of concentric tubes with elastomeric material injected and cured in an annular gap between the two tubes, and an MR fluid reservoir with piston-mounted MR valve housed inside the innermost tube. 1. A concentric bearing type magnetorheological fluid elastomeric (MRFE) damper system for use as a helicopter rotor lead-lag damper , comprising:a) two concentric cylindrical metal tubes including an outer tube and an inner tube defining an internal cavity;b) an elastomeric layer sandwiched between said outer tube and said inner tube;c) magnetorheological (MR) fluid filled in said internal cavity of said inner tube; andd) a flow valve to control flow resistance of said MR fluid within said internal cavity.2. The concentric bearing type MRFE damper system according to claim 1 , further comprising a piston and rod assembly inside said internal cavity.3. The concentric bearing type MRFE damper system according to claim 2 , wherein said piston and rod assembly further comprises a multi-stage spool-shaped piston head and a guide ring.4. The concentric bearing type MRFE damper system according to claim 2 , wherein relative motion of said outer tube and said inner tube creates shear deformation of the said elastomeric layer ...

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Номер записи: 63
03-04-2014 дата публикации

SHOCK ABSORBER

Номер: US20140090940A1
Автор: ASHIBA Masahiro
Принадлежит: Hitachi Automotive Systems, Ltd.

A shock absorber includes an annular outer seat protruding from a valve main body, an inner seat protruding inward of the outer seat of the valve main body, an intermediate seat disposed between the outer seat and the inner seat of the valve main body and protruding to surround an opening section of a passage, a first disk having a larger diameter than the outer seat and seated on the intermediate seat, a spring member configured to press the first disk toward the outer seat, a second disk stacked on the first disk, and a communication unit configured to bring the passage in communication with a space between the intermediate seat and the outer seat. The first disk starts to be pressed by the spring member to abut the outer seat while abutting the inner seat and the intermediate seat. 1. A shock absorber comprising:a cylinder in which a working fluid is sealed;a piston slidably inserted into the cylinder and configured to partition the inside of the cylinder into two chambers;a piston rod connected to the piston and extending toward the outside of the cylinder;a passage through which the working fluid flows by sliding movement of the piston; anda damping force-generating mechanism installed at a portion of the passage and configured to control a flow of the working fluid to generate a damping force,wherein the damping force-generating mechanism comprises:a valve main body through which the passage passes;an annular outer seat protruding from the valve main body;an inner seat protruding inward of the outer seat of the valve main body;an intermediate seat disposed between the outer seat and the inner seat of the valve main body and protruding to surround an opening section of the passage;a first disk having a larger diameter than the outer seat and that sits on the intermediate seat;a spring member configured to press the first disk toward the outer seat;a second disk stacked on the first disk; anda communication unit configured to bring the passage in communication ...

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Номер записи: 64
10-04-2014 дата публикации

Movement damping apparatus and valve

Номер: US20140097593A1
Автор: Gernot Elsensohn, Juergen Poesel, Stefan Battlogg
Принадлежит: INVENTUS ENGINEERING GMBH

In a movement damping apparatus, a magnetorheological fluid is pressed through a flow path. A device generating a variable magnetic field comprises a core around which a coil is wound as well as pole surfaces in the flow path, the magnetic field acting on the magnetorheological fluid by means of said pole surfaces. The coil is arranged within the flow path along with the core, the axis of the coil extending perpendicular to the direction of flow of the magnetorheological fluid. The flow path has a jacket made of a magnetically conducting material.

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Номер записи: 65
03-01-2019 дата публикации

GRIP MEMBER OF OVERTURN PREVENTING DEVICE AND THE OVERTURN PREVENTING DEVICE

Номер: US20190000232A1
Автор: ISHIHARA Yukiko, OTA Akihisa, UNE Masaya
Принадлежит: KYB Corporation

Providing a construction that can allow a ceiling side base to be relocated easily even after the overturn preventing device has been mounted between a top surface of an article and a ceiling. A grip member is attached to an overturn preventing device including a damper to be mounted between the top surface of the furniture and a pair of bases respectively connected to both ends of the damper. One of the bases abuts against the top surface of the furniture and the other base abuts against the ceiling. The grip member includes a through hole part locked to the ceiling side second base and a grip part connected to the through hole part and drooping below the second base in a mounted state where the second base is in abutment against the ceiling 1. A grip member for an overturn preventing device including a damper to be mounted between a top surface of an article installed on an installation surface and a ceiling , and a pair of bases respectively coupled to both ends of the damper , one of which bases abuts against the top surface of the article and the other of which abuts against the ceiling , the grip member comprising:a locking part locked to the base at the ceiling side; anda grip part connected to the locking part and drooping below the ceiling side base in a mounted state in which the ceiling side base is in abutment against the ceiling.2. The grip member according to claim 1 , wherein:the ceiling side base includes a body and a rotating shaft member which is assembled to the body and rotatably holds one of the ends of the damper;the rotating shaft member has two ends respectively protruding at both sides of a central axis of the damper along a direction intersecting with the central axis; anda pair of the locking parts is locked to the ends of the rotating shaft member respectively.3. The grip member according to claim 2 , further comprising connecting parts connected to the respective locking parts claim 2 , wherein:the connecting parts are caused to come ...

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Номер записи: 66
06-01-2022 дата публикации

METHOD AND APPARATUS FOR CONTROLLING ANTI-YAW DAMPER

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

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

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Номер записи: 67
02-01-2020 дата публикации

METHODS AND APPARATUS FOR SELECTIVE SPRING PRE-LOAD ADJUSTMENT

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

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

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Номер записи: 68
02-01-2020 дата публикации

METHODS AND APPARATUS FOR CONTROLLING A FLUID DAMPER

Номер: US20200001678A1
Автор: Marking John
Принадлежит: Fox Factory, Inc.

A spring for a suspension is described. The spring includes: a spring chamber divided into at least a primary portion and a secondary portion, and a fluid flow path coupled with and between the primary portion and the secondary portion. The fluid flow path includes a bypass mechanism, wherein the bypass mechanism is configured for automatically providing resistance within the fluid flow path in response to a compressed condition of the suspension. 1a damper body having a longitudinal axis and at least partially defining a fluid chamber containing damping fluid;a piston rod, a portion of said piston rod movable along the longitudinal axis of, and within, said damper body, wherein during a compression stroke, said portion of said piston rod moves further into said damper body; a) a partition separating said fluid chamber into a compression chamber and a reservoir chamber, said partition having at least one compression flow port, wherein during said compression stroke, said piston rod expels said damping fluid from said compression chamber to said reservoir chamber through said at least one compression flow port;', 'b) an intensifier piston, said intensifier piston having a first cross-sectional area and a second cross-sectional area, said second cross-sectional area being larger than said first cross-sectional area, at least one movable element associated with said reservoir-type fluid damper, said at least one movable element having:', 'a) a first portion having a compression force of at least one spring assembly transmitted thereto; and', 'b) a second portion contacting said damping fluid in said reservoir chamber, whereby an amount of force transmitted to said first portion of said movable element by said spring assembly is at least partially converted to a fluid pressure in said reservoir chamber by said second portion of said movable element;, 'a pressure-sensitive compression control valve assembly comprisingwhereby resistance to fluid flow through said pressure ...

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Номер записи: 69
05-01-2017 дата публикации

ASSEMBLY FOR ABSORBING ENERGY IN THE EVENT OF AN OVERLOAD

Номер: US20170002888A1
Автор: Battlogg Stefan, Poesel Juergen
Принадлежит:

An energy absorber reduces an excessive load between an object and an assembly in an overload event. The energy absorber includes an absorber cylinder and a piston device with an absorber piston and a piston rod. A first chamber of an absorber chamber is filled with a field-sensitive absorber fluid. The piston has an absorber valve with an absorber duct extending in an axial direction and being subject to a selective field of a field generating device. A ratio of the outer diameter of the piston rod to an outer diameter of the absorber piston is greater than 0.6 and the first chamber extends in a space around the piston rod. During the relative motion of the fastener and the holding device the field-sensitive absorber fluid is urged through the damping duct of the absorber piston. 121-. (canceled)22. An assembly for energy absorption in an overload event to reduce a resulting load on an object coupled with the assembly , the assembly comprising:an energy absorber configured, in a single overload event involving energy input that is so great that, absent such an energy absorber, damage to the object is highly probable, to absorb energy so as to avoid excessive load on the object in the overload event by way of energy absorption of the energy absorber;said energy absorber having a fastener and a holding device and being configured to absorb energy in a relative motion between said fastener and said holding device;said energy absorber having an absorber cylinder and a piston device with an absorber piston and a piston rod connected therewith, said absorber piston defining at least one first chamber of an absorber chamber in said absorber cylinder;a field-sensitive absorber fluid at least partially filling said first chamber;an absorber valve disposed on said piston device with at least one absorber duct extending in an axial direction and being disposed for exposure to a field of a field generating device;{'b': 3', '5, 'wherein a ratio of an outer diameter of said ...

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Номер записи: 70
05-01-2017 дата публикации

METHOD AND ASSEMBLY FOR ABSORBING ENERGY FROM LOADS BEING APPLIED DURING AN OVERLOAD EVENT IN ORDER TO PREVENT DAMAGE

Номер: US20170002889A1
Автор: Battlogg Stefan, Mayer Markus
Принадлежит:

A method and an assembly for absorbing energy during an overload event. An energy absorber reduces loads on an object being transported on a loading unit during a single overload event, which introduces such a high degree of energy that there is an overwhelming likelihood the object would be damaged without an energy absorber. Measurement values on the current state of the loading unit are sensed. A control device determines an overload event and a damping of the energy absorber is set to a high value after the detection of the overload event. The damping is maintained for a specified prolonged time period and controlled dependent on the measurement values during the overload event to increase the load for objects during the specified time period initially to a specified threshold load and after the specified time dependent on the measurement values detected during the overload event. 120-. (canceled)21. A method for absorbing energy during an overload event using an energy absorber in order to reduce loads on an object being transported on a loading unit , the method comprising:providing an energy absorber that is suitable for absorbing energy during a single overload event, which introduces such a high degree of energy that there is an overwhelming likelihood that the object would be damaged without an energy absorber, in order to reduce the resulting load on the object during the overload event by way of the energy absorption of the energy absorber;detecting measurement values with a sensor device about a current state of the loading unit;receiving the measurement values in a control device and determining an overload event from the recorded measurement values; andat least immediately after the overload event is detected, setting a damping of the energy absorber to a relatively high value that is closer to a maximum value than to a minimum value and maintaining the damping for a specified time period;setting the specified time period such that during the ...

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Номер записи: 71
05-01-2017 дата публикации

METHOD AND LOADING UNIT FOR DAMPING LOADS WHICH ACT IN THE CASE OF OVERLOAD

Номер: US20170002890A1
Автор: Battlogg Stefan, Mayer Markus
Принадлежит:

An energy absorber is controlled in an overload event to absorb potentially damaging energy. The energy absorber acts between a receiving unit for receiving objects for transporting and a carrier device that connects to a transporter. An absorber force can be influenced by an electrically controlled magnetic field unit. Measurement values of loads acting on the loading unit are captured sequentially and an overload event is determined if a measure derived from the measurement values exceeds a predetermined threshold value. After the onset of an overload event a prognosticated load curve of the loading unit is assessed from a multitude of measurement values captured from the onset of the overload event. A planned power flow curve for the magnetic field unit is determined and the load curve is damped time-dependent so that a planned load curve ensues which remains beneath a predetermined load limit. 119-. (canceled)20. A method of controlling an energy absorber at a loading unit to reduce loads acting on an object transported on the loading unit , the method comprising:providing an energy absorber configured to absorb energy in a single overload event involving energy input that is so great that, absent an energy absorber, damage to an object to be protected while being transported on the loading unit is highly probable, so as to reduce loads on the object resulting from the overload event by way of energy absorption by the energy absorber;disposing the energy absorber to act between a receiving unit for receiving the object to be transported and a carrier device for connection with a transport device; andproviding an electrically controllable magnetic field unit disposed to influence an absorber force of the energy absorber by performing the following steps:capturing measurement values of loads acting on the loading unit sequentially by a sensor device;when a measure derived from the measurement values exceeds a predetermined threshold value, determining that an ...

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Номер записи: 72
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: 73
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: 74
04-01-2018 дата публикации

SHAPE MEMORY ALLOW THERMALLY COMPENSATING DAMPING SYSTEM

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

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

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Номер записи: 75
04-01-2018 дата публикации

Shock absorber

Номер: US20180003261A1
Автор: Kazuma ANDO, Masahiro Miwa, Takafumi Kobayashi, Yuki Watanabe
Принадлежит: Honda Motor Co Ltd, KYB Corp

A shock absorber includes a cylindrically-shaped mounting member having an outer peripheral surface bonded at one end or both ends, the mounting member having an outer diameter at an end surface side smaller than an outer diameter at a center portion, and a reinforcement welding performed at the end surface side of the mounting member at a bonding portion of the mounting member.

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Номер записи: 76
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: 77
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: 78
03-01-2019 дата публикации

IMPROVEMENT TO FREQUENCY DEPENDENT VALVES

Номер: US20190003550A1
Автор: Yan Shi
Принадлежит:

A valve () comprises: a pressure chamber (); a valve assembly () controlling a passage of fluid (), the valve assembly () being configured in such a way that its preload force is controlled by the pressure chamber (); a spring element () that helps the valve assembly () oppose change in volume of the pressure chamber (), its preload force also controlled by the pressure chamber (); characterized in that: for a given change in volume of the pressure chamber (), reaction force from the spring element () changes faster than reaction force of the valve assembly (). 31. A valve () according to claim 4 , [{'b': 300', '301, 'said pressure chamber () comprises a moveable and/or deformable chamber wall (),'}, {'b': 370', '301', '100, 'said spring element () is configured to oppose movement or deformation of said chamber wall () which results in increased preload of said valve assembly ().'}], 'characterized in that41. A valve () according to claim 5 , characterized in that:{'b': 370', '100, 'said spring element () is higher in stiffness than said valve assembly ().'}51. A valve () according to claim 1 , [{'b': 300', '301, 'said pressure chamber () comprises a moveable and/or deformable chamber wall (),'}, {'b': 370', '301', '100, 'said spring element () is configured to oppose movement or deformation of said chamber wall () which results in increased preload of said valve assembly ().'}], 'characterized in that61. A valve () according to claim 2 , {'b': 370', '100, 'said spring element () is higher in stiffness than said valve assembly ().'}, 'characterized in that The present disclosure relates to hydraulic shock absorbers and dampers which can be adapted for use in a suspension system such as the systems used for transportation vehicles. More particularly, the present disclosure relates to a frequency dependent shock absorber, to provide different damping characteristics when subjected to input of differing frequencies.Frequency dependent valves such as those described in ...

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Номер записи: 79
08-01-2015 дата публикации

MAGNETORHEOLOGICAL FLUID SHOCK ABSORBER

Номер: US20150008081A1
Автор: NAKAMURA Kazuhisa, SAITO Keiji, Teraoka Takashi
Принадлежит: KAYABA INDUSTRY CO., LTD.

A magnetorheological fluid shock absorber includes a piston slidably arranged in a cylinder in which magnetorheological fluid whose viscosity changes by the action of a magnetic field is sealed. The piston includes a piston core which is attached to an end part of the piston rod and on the outer periphery of which a coil is provided, a flux ring which surrounds the outer periphery of the piston core and forms a flow passage for the magnetorheological fluid between the piston core and the flux ring, a plate which is annularly formed, arranged on the outer periphery of the piston rod and attached to one end of the flux ring, and a stopper whose axial position is specified with respect to the piston rod and which sandwiches the plate between the piston core and the stopper. 1. A magnetorheological fluid shock absorber , comprising:a cylinder in which magnetorheological fluid whose viscosity changes by the action of a magnetic field is sealed;a piston which is slidably arranged in the cylinder and defines a pair of fluid chambers in the cylinder; anda piston rod which is coupled to the piston and extends to the outside of the cylinder; a piston core which is attached to an end part of the piston rod and on the outer periphery of which a coil is provided;', 'a flux ring which surrounds the outer periphery of the piston core and forms a flow passage for the magnetorheological fluid between the piston core and the flux ring;', 'a plate which is annularly formed, arranged on the outer periphery of the piston rod and attached to one end of the flux ring; and', 'a stopper whose axial position is specified with respect to the piston rod and which sandwiches the plate between the piston core and the stopper., 'wherein the piston includes2. The magnetorheological fluid shock absorber according to claim 1 , further comprising:a snap ring which fixes the stopper in an axial direction by being fitted to the inner periphery of the stopper.3. The magnetorheological fluid shock ...

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Номер записи: 80
08-01-2015 дата публикации

Rotary damper

Номер: US20150008082A1
Автор: Atsushi Sakuta
Принадлежит: Kayaba Industry Co Ltd

A rotary damper includes: a shaft capable of rotating about a central axis; a pair of side panels that support the shaft rotatably; a case provided between the pair of side panels such that an operating chamber is defined in an interior thereof; a vane provided on the shaft such that a tip end thereof slides against an inner periphery of the case, thereby dividing the operating chamber into a first chamber and a second chamber; and a damping valve provided in the shaft to apply resistance to a flow of a fluid traveling between the first chamber and the second chamber.

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Номер записи: 81
08-01-2015 дата публикации

DAMPING VALVE FOR SHOCK ABSORBER

Номер: US20150008083A1
Автор: Yamada Hideki
Принадлежит: KAYABA INUSTRY CO., LTD

A damping valve includes a piston with a one-side disk and an other-side disk, a port configured to include through holes, a piston rod, and a nut. A plurality of the through holes of the other-side disk are formed along between the inner peripheral seat surface and the outer peripheral seat surface. Elastic deforming portions are formed between the through holes of the other-side disk. A clearance is formed between the inner peripheral seat surface of the one-side disk and that of the other-side disk in a state where the nut is not tightened and the outer peripheral seat surface of the one-side disk and that of the other-side disk are in contact. The elastic deforming portions of the other-side disk are strained and the respective inner peripheral seat surfaces come into contact in a state where the nut is tightened. 1. A damping valve for shock absorber , comprising:a valve disk including a one-side disk and an other-side disk provided to be placed on the one-side disk and partitioning one chamber and another chamber;a port configured to include through holes formed in the one-side and other-side disks and allowing communication between the one and the other chambers;a shaft member penetrating through the valve disk; anda nut for fixing the valve disk to the shaft member by being threadably mounted on the tip of the shaft member;wherein:an annular inner peripheral seat surface and an annular outer peripheral seat surface formed at an outer side of the inner peripheral seat surface are respectively formed at corresponding positions of each mating surface of the one-side and other-side disks;the through hole is each open between each inner peripheral seat surface and each outer peripheral seat surface;a plurality of the through holes of the other-side disk are formed along between the inner peripheral seat surface of the other-side disk and the outer peripheral seat surface of the other-side disk;elastic deforming portions are formed between the through holes of the ...

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Номер записи: 82
12-01-2017 дата публикации

STRUT-TYPE SUSPENSION DEVICE

Номер: US20170008362A1
Автор: ASAOKA Naoya, HOMMA Yuji, Murakami Takao
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A strut-type suspension device includes an upper support; a shock absorber that is supported by the upper support; a coil spring that is arranged surrounding the shock absorber, between an upper spring seat and a lower spring seat; and a bearing that is arranged between the upper spring seat and the upper support. The upper support includes a mounting portion that has a support surface for supporting the bearing. The support surface is inclined with respect to a plane perpendicular to a shock absorber axis. 1. A strut-type suspension device comprising:an upper support;a shock absorber that is supported by the upper support;a coil spring that is arranged surrounding the shock absorber, between an upper spring seat and a lower spring seat; anda bearing that is arranged between the upper spring seat and the upper support, whereinthe upper support includes a mounting portion that has a support surface for supporting the bearing; andthe support surface is inclined with respect to a plane perpendicular to a shock absorber axis,wherein the mounting portion includes the support surface, and a protruding face disposed around an inner peripheral edge of the support surface; and an angle between the support surface and the protruding face is greater than 90°.2. The strut-type suspension device according to claim 1 , whereinan angle between the support surface and a king pin axis is substantially a right angle; andthe king pin axis and a bearing rotational axis are substantially aligned.3. (canceled)4. The strut-type suspension device according to claim 1 , whereinthe angle between the support surface and the protruding face is equal to or greater than a sum of an angle between the a king pin axis and the shock absorber axis plus 90° 1. Field of the InventionThe invention relates to a strut-type suspension device for a vehicle.2. Description of Related ArtA strut-type suspension device in which a shock absorber also serves as a suspension support is known as one suspension ...

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Номер записи: 83
10-01-2019 дата публикации

OVERTURN PREVENTING DEVICE

Номер: US20190008277A1
Автор: IIDA Chika, ISHIHARA Yukiko, Kato Yukio, OTA Akihisa, SEKINE Shinichi, TOYOUCHI Atsushi, UNE Masaya
Принадлежит: KYB Corporation

Providing an overturn preventing device in which a plurality of dampers can be mounted between a top surface of an article and a ceiling and which can suppress increase in working man-hour and increase in an installation space. The overturn preventing device includes a plurality of dampers mounted between a top surface and a piece of furniture installed on an installation surface and a ceiling. The dampers each have first and second ends and all of the first ends are coupled to the article-side base. The second ends of the dampers are coupled to one or a plurality of ceiling-side bases. 1. An overturn preventing device comprising:a plurality of dampers to be mounted between a top surface of an article installed on an installation surface and a ceiling;an article-side base to be placed on the top surface of the article, the dampers each having first and second ends, all of the first ends of the dampers being configured to be coupled to the article-side base; andone or a plurality of ceiling-side bases to which the second ends of the dampers are coupled.2. The overturn preventing device according to claim 1 , wherein the second ends of the dampers are individually coupled to the respective ceiling-side bases.3. The overturn preventing device according to claim 1 , wherein the second ends of a plurality of or all of the dampers are coupled to different positions of a common ceiling-side base.4. The overturn preventing device according to claim 1 , wherein the ceiling-side bases are respectively disposed at both sides of an imaginary vertical line passing a central part of the article-side base in a state where the overturn preventing device is mounted between the top surface of the article and the ceiling.5. The overturn preventing device according to claim 4 , wherein the damper disposed at one of the sides of the imaginary line has a first inclination to a vertical direction and the damper disposed at the other side of the imaginary line has a second inclination to a ...

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Номер записи: 84
10-01-2019 дата публикации

OVERTURN PREVENTING DEVICE

Номер: US20190008278A1
Автор: UNE Masaya
Принадлежит: KYB Corporation

The overturn preventing device includes a damper, a length adjusting member and a pair of bases. The damper has a cylinder having an outer peripheral surface formed with a screw thread, and a rod. The cylinder is bottomed. The rod is inserted. into the cylinder and has a distal end protruding out of an open end of the cylinder. The length adjusting member has a first end and a second end. The first end has an opening. The length adjusting member has an inner peripheral surface formed with a screw thread so that the cylinder is screwed through the first end into the length adjusting member. The bases are rotatably coupled to the second end of the length adjusting member and the distal end of the rod respectively. The bases abut against a top surface of an article installed. on an installation surface and a ceiling respectively. 1. An overturn preventing device comprising:a damper including a bottomed cylinder having an outer peripheral surface formed with a screw thread, and a rod, the cylinder having two ends one of which is an open end and the other of which is a closed end, the rod being inserted into the cylinder and having a distal end protruding out of the open end of the cylinder;a length adjusting member having a first end and a second end, the first end having an opening, the length adjusting member having an inner peripheral surface formed with a screw thread so that the cylinder is screwed through the first end into the length adjusting member; anda pair of bases rotatably coupled to the second end of the length adjusting member and the distal end of the rod respectively, the bases being configured to abut against a top surface of an article installed on an installation surface and a ceiling respectively.2. The overturn preventing device according to claim 1 , wherein the cylinder includes a cylinder body into which the rod is inserted claim 1 , and a screw member into which the cylinder body is inserted to be fixed claim 1 , the screw member having an ...

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Номер записи: 85
14-01-2016 дата публикации

Dual-Rate Jounce Bumper

Номер: US20160009157A1
Автор: Al-Dahhan Sadiq, Dubenhorst Stefan, Haupt Stefan
Принадлежит:

A dual-rate jounce bumper limits jounce travel between a first component and a second component of a vehicle. The second component is spaced from and moveable toward the first component along a jounce axis. The dual-rate jounce bumper includes a bumper and an outer member. The bumper has a first end for coupling to the first component and a second end spaced from the first end for contacting the second component as the second component moves along the jounce axis toward the first component. The bumper is compressible between the first and second components for limiting jounce travel. The bumper is also radially expandable as the bumper is compressed. The outer member is disposed about the bumper and is capable of limiting the radial expansion of the bumper as the bumper is compressed for increasing a stiffness of the bumper. 1. A dual-rate jounce bumper for limiting jounce travel between a first component and a second component of a vehicle with the second component spaced from and moveable toward the first component along a jounce axis , said jounce bumper comprising:a bumper having a first end for coupling to the first component and having a second end spaced from said first end for contacting the second component with said bumper compressible between the first and second components for limiting jounce with said bumper radially expandable as said bumper is compressed; andan outer member disposed about said bumper and capable of limiting the radial expansion of said bumper as said bumper is compressed for increasing a stiffness of the bumper;wherein said outer member is radially expandable relative to said bumper.2. A dual-rate jounce bumper as set forth in wherein said body of said outer member has a ring shaped configuration having a hollow interior with said bumper disposed within said hollow interior.3. (canceled)4. A dual-rate jounce bumper as set forth in wherein said outer member has a stiffness that is greater than a stiffness of said bumper such that said ...

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Номер записи: 86
14-01-2016 дата публикации

Rotary damper for a vehicle

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

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

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Номер записи: 87
27-01-2022 дата публикации

Arrangement for Securing a Vibration Damper of a Vehicle

Номер: US20220024270A1
Автор: HARADINAJ Mehdi
Принадлежит:

An arrangement for securing a vehicle vibration damper on a wheel support and/or on a vehicle body includes a rubber bearing secured by a fastener, the rubber bearing including at least two rubber bushings. When in an installed position, at least one of the rubber bushings is secured in three longitudinal degrees of freedom relative to the wheel support or the vehicle body, and a rotational degree of freedom of the one of the bushings about the axis of the fastener is blocked by a form-fitting arrangement. The form-fitting arrangement formed by engagement of a nose on the one of the bushings into a recess arranged in a rubber bearing receiving area of the wheel support and/or vehicle body. The nose and the recess are shaped such that the form fitting connection is formed only by installing the fastener, without the need for manually rotating the bushing with a tool. 19.-. (canceled)10. A fastening arrangement for fastening a vibration damper of a vehicle to at least one of a wheel carrier and a body of the vehicle , comprising:a rubber bearing; anda fastener configured to secure the rubber bearing to the at least one of the wheel carrier and the vehicle body,whereinthe rubber bearing includes at least two rubber bushings,when the fastener is in an installed state one of the at least two bushings is fixed in three orthogonal degrees of freedom in relation to the at least one of the wheel carrier and the vehicle body,when the fastener is in an installed state a rotational degree of freedom of the one of the at least two bushings about a longitudinal axis of the fastener is blocked by a form-fitting blockage,the form-fitting blockage is formed by engagement of a cutout arranged in a receiving part of the at least one of the wheel carrier and the vehicle body configured to receive the rubber bearing with a nose arranged on and projecting from the one of the at least two bushings, andthe nose and the cutout are mutually shaped such that the form fit between the nose and ...

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Номер записи: 88
27-01-2022 дата публикации

SPRING GUIDE AND SUSPENSION DEVICE

Номер: US20220024272A1
Автор: KURIHARA Kenta
Принадлежит: KYB Corporation

A spring guide includes: a base portion configured to support a coil spring; and an opening portion provided so as to penetrate through the base portion, the opening portion being configured such that a shock absorber is inserted into the opening portion, the opening portion is provided with: protruded portions protruding out from an inner circumferential surface of the opening portion, the protruded portions being configured to support the shock absorber; and a recessed portion recessed in the inner circumferential surface of the opening portion, a plurality of the protruded portions are arranged along a circumferential direction of the opening portion, and a gate trace of an injection mold is formed in the recessed portion. 1. A spring guide attached to an outer circumferential surface of a shock absorber provided between a vehicle body and a wheel and configured to support a coil spring for elastically supporting the vehicle body , the spring guide comprising:a base portion configured to support the coil spring; andan opening portion provided so as to penetrate through the base portion, the opening portion being configured such that the shock absorber is inserted into the opening portion, whereinthe opening portion is provided with: protruded portions protruding out from an inner circumferential surface of the opening portion, the protruded portions being configured to support the shock absorber; and a recessed portion recessed in the inner circumferential surface of the opening portion,a plurality of the protruded portions are arranged along a circumferential direction of the opening portion, anda gate trace of an injection mold is formed in the recessed portion.2. The spring guide according to claim 1 , whereina tip end of the gate trace is positioned radially outside tip ends of the protruded portions.3. The spring guide according to claim 2 , whereina depth of the recessed portion is greater than a protruding height of the gate trace.4. The spring guide ...

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Номер записи: 89
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: 90
12-01-2017 дата публикации

Valve For A Vibration Damper, Vibration Damper, And Motor Vehicle

Номер: US20170009841A1
Автор: FÖRSTER Andreas
Принадлежит:

A valve for a vibration damper having a valve housing and a valve slide movable in the valve housing for at least partially closing at least one flow path of a fluid flowing through the valve. The valve has an input side and an output side. The pressure impingement surfaces of the valve slide for an opening pressure and for a closing pressure are substantially equal, and the valve slide has a constriction via which a pressure difference between opening pressure and closing pressure can be generated. At least one channel connects the interior space of the valve slide to the exterior space of the valve slide. 116.-. (canceled)17. A valve having for a vibration damper comprising:a valve housing;an input side of the valve;an output side of the valve;a valve slide movable in the valve housing configured to at least partially close at least one flow path of a fluid flowing through the valve;a first pressure impingement surface of the valve slide for an opening pressure;a second pressure impingement surface of the valve slide for a closing pressure, the first pressure impingement surface and the second pressure impingement surface being substantially equal;a constriction of the valve slide via which a pressure difference between an opening pressure and a closing pressure can be generated; andat least one channel that connects an interior space of the valve slide to an exterior space of the valve slide.18. The valve according to claim 17 , further comprising a force accumulator configured to preload the valve slide.19. The valve according to claim 17 , wherein the at least one channel connects the interior space of the valve slide to an annular space around the valve slide configured to accommodate a spring.20. The valve according to claim 17 , wherein the at least one channel is arranged in a region of the constriction.21. The valve according to claim 17 , wherein the constriction is formed as circular cross-sectional narrowing.22. The valve according to claim 17 , further ...

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Номер записи: 91
12-01-2017 дата публикации

Vibration Damper And Motor Vehicle

Номер: US20170009842A1
Автор: FÖRSTER Andreas
Принадлежит:

A vibration damper with at least with at least two tube elements that are arranged one inside the other and a piston rod that is movable in a piston rod guide. A valve having a valve slide for at least partially closing at least one flow path of a fluid flowing through the valve is arranged in a region of one end of the piston rod guide. The valve has an input side and an output side. Pressure impingement areas of the valve slide are substantially the same size for an opening pressure and for a closing pressure, and the valve has a constriction via which a pressure difference between opening pressure and closing pressure can be generated. 121.-. (canceled)22. A vibration damper comprising:at least two tube elements which are arranged one inside the other;a piston rod guide;a piston rod which is movable in the piston rod guide; and a valve slide configured to at least partially close at least one flow path of a fluid flowing through the valve;', 'an input side;', 'an output side;', 'pressure impingement areas of the valve slide between the input side and the output side are substantially a same size for an opening pressure and for a closing pressure; and', 'a constriction between the input side and the output side via which a pressure difference between opening pressure and closing pressure can be generated., 'a valve arranged in a region of one end of the piston rod guide and comprising23. The vibration damper according to claim 22 , wherein at least one channel connects an exterior space of the valve slide to an interior space so that a pressure of the fluid is taken off at a level of the at least one channel.24. The vibration damper according to claim 23 , wherein the at least one channel connects the interior of the valve to an annular space inside the valve slide configured as an annular spring accommodating space.25. The vibration damper according to claim 23 , wherein the at least one channel is arranged in a region of the constriction.26. The vibration damper ...

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Номер записи: 92
12-01-2017 дата публикации

ORIGINAL TYPE DAMPING-ADJUSTABLE SHOCK ABSORBER

Номер: US20170009843A1
Автор: WENG SHU-PING
Принадлежит:

An original type damping-adjustable shock absorber is revealed. An adjustment rod is mounted into a through hole of a piston body while a knob is disposed on a top end of a main body of the adjustment rod and a tapered-end rod is connected to a bottom end of the main body. A tapered-head of the tapered-end rod is inserted into a channel under the through hole. An insertion hole is located at a wall of the piston body and communicated with the channel. The depth of the tapered-head of the tapered-end rod inserted into the channel can be adjusted so as to change resistance of hydraulic oil flowing through the channel and damping level of the shock absorber. Thus an original car runs smoothly over roads with various surfaces. Therefore features of the original car including a comfort rid and a sense of value are highlighted. 1. A damping-adjustable shock absorber comprising:a piston rod having a piston body with a through hole and an adjustment rod mounted into the through hole of the piston body; a knob connected to a top end of a main body of the adjustment rod and a tapered-end rod set on a bottom end of the main body of the adjustment rod while a tapered-head of the tapered-end rod is inserted into a channel formed on a bottom of the through hole; an insertion hole located at a wall of the piston body and communicated with the channel;a piston that is connected to a bottom end of the piston rod; anda cylinder filled with hydraulic oil and mounted with the piston and a part of the piston rod therein;wherein the adjustment rod further includes a shaft sleeve arranged between the knob and the main body of the adjustment rod; a bottom end of the shaft sleeve is connected to and against the main body of the adjustment rod; the shaft sleeve is disposed with a polygonal hole concavely on a top end thereof and an outer threaded portion therearound; the knob includes a grip portion exposed and projecting from the piston body, a connecting rod connected to and extended from ...

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Номер записи: 93
27-01-2022 дата публикации

THROTTLE POINT WITH A VALVE BODY WITH A CHANGING DIAMETER

Номер: US20220025955A1
Автор: HEYN Steffen, KNEZEVIC Aleksandar, RÖSSELER Jörg
Принадлежит: ZF FRIEDRICHSHAFEN AG

A throttle point for a vibration damper, comprising a damper valve carrier with a circumferential annular groove, in which an annular valve body with a variable diameter is arranged. The annular valve body forms, with a guiding face for flowing damping medium, a throttle point, a throttle cross section of which decreases in the case of an increasing flow velocity of the damping medium within the throttle point. The circumferential annular groove forming a pressure chamber which is filled with damping medium. A radially outwardly directed actuating force acts on the valve body, wherein the pressure chamber is a constituent part of a hydraulic system which has a connector to at least one working space of the vibration damper and the hydraulic connection of which to the pressure chamber can be set. 1. A throttle point for a vibration damper , comprising a damper valve carrier with a circumferential annular groove , in which an annular valve body with a variable diameter is arranged , the annular valve body forms , with a flow guiding face for flowing damping medium , the throttle point , a throttle cross section of which decreases with an increase flow velocity of the damping medium within the throttle point , the circumferential annular groove forming a pressure chamber which is filled with damping medium , wherein a radially outwardly directed actuating force acts on the valve body , the pressure chamber being a constituent part of a hydraulic system of the damper valve device , wherein at least one component of the hydraulic system can be adjusted.2. The throttle point as claimed in claim 1 , wherein the hydraulic system has a connector to at least one working space of the vibration damper claim 1 , wherein the hydraulic connection of the connector to the pressure chamber can be set.3. The throttle point as claimed in claim 2 , wherein the hydraulic system has a connecting channel between two working spaces; of the vibration damper claim 2 , wherein the connecting ...

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Номер записи: 94
10-01-2019 дата публикации

VEHICLE BODY FRONT STRUCTURE

Номер: US20190009830A1
Автор: Kondo Takehiro
Принадлежит:

A vehicle body front structure including a torque rod attachment mechanism to attach a torque rod supporting a driving source of a vehicle to a damper housing includes: a front attachment section that attaches the torque rod attachment mechanism to the vehicle front side of the damper housing; a rear attachment section that is located rearward of the front attachment section and attaches the torque rod attachment mechanism to the damper housing. The damper housing includes a pair of lateral beads between the front attachment section and the rear attachment section. The pair of lateral beads extends in the vehicle longitudinal direction. 1. A vehicle body front structure including a bracket mechanism to attach a mounting member supporting a driving source of a vehicle to a damper housing , the structure comprising:a front attachment section that attaches the bracket mechanism to the vehicle front side of the damper housing;a rear attachment section that is located rearward of the front attachment section and attaches the bracket mechanism to the damper housing, whereinthe damper housing includes a bead between the front attachment section and the rear attachment section, the bead extending in a vehicle longitudinal direction.2. The vehicle body front structure according to claim 1 , whereinthe damper housing includes: a first vertical wall section that extends in a vertical direction to cover a damper; and a second vertical wall section that extends in the vertical direction to cover a wheel, andthe bead is located between the first vertical wall section and the second vertical wall section.3. The vehicle body front structure according to claim 1 , whereinthe damper housing includes: a damper base that closes an opening in upper part of the damper housing; and a damper housing reinforcement member that reinforces the damper housing, andthe damper housing reinforcement member includes: a first connecting section that is connected to the damper housing and the bracket ...

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Номер записи: 95
09-01-2020 дата публикации

DAMPER WITH VEHICLE INTERFACE ADAPTER

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

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

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Номер записи: 96
14-01-2016 дата публикации

ADAPTIVE THREE PARAMETER ISOLATOR ASSEMBLIES INCLUDING EXTERNAL MAGNETO-RHEOLOGICAL VALVES

Номер: US20160010717A1
Автор: Janulik Vlastimil, Ruebsamen Dale Thomas, Tosovsky Jiri
Принадлежит: HONEYWELL INTERNATIONAL INC.

Embodiments of an adaptive three parameter isolator assembly are provided, as are embodiments of a spacecraft isolation system including a plurality of isolator assemblies. In one embodiment, the isolator assembly includes a three parameter isolator having opposing hydraulic chambers configured to be filled with a Magneto-Rheological (MR) damping fluid. An MR valve external to the three parameter isolator is fluidly coupled between the opposing hydraulic chambers. The MR valve is configured to generate a magnetic field through which the MR damping fluid passes as the fluid flows between the opposing hydraulic chambers. A control device is operably coupled to the MR valve and is configured to control the strength of the magnetic field to adjust the viscosity of the MR damping fluid during operation of the three parameter isolator. 1. An adaptive three parameter isolator assembly , comprising:a three parameter isolator having opposing hydraulic chambers configured to be filled with a Magneto-Rheological (MR) damping fluid;an MR valve external to the three parameter isolator and fluidly coupled between the opposing hydraulic chambers, the MR valve configured to generate a magnetic field through which the MR damping fluid passes when flowing between the opposing hydraulic chambers; anda control device operably coupled to the MR valve and configured to control the strength of the magnetic field to adjust the viscosity of the MR damping fluid during operation of the three parameter isolator;wherein the control device is further configured to selectively operate in a spacecraft launch mode and in an in-orbit mode, and wherein the control device adjusts the magnetic field to decrease the dynamic stiffness of the three parameter isolator when transitioning from the spacecraft launch mode to the in-orbit mode.2. The adaptive three parameter isolator assembly of further comprising a sensor operably coupled to the control device and configured to monitor an operational ...

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Номер записи: 97
14-01-2016 дата публикации

SELF-LOCKING CYLINDER FOR A DOOR OF A MOTOR VEHICLE

Номер: US20160010718A1
Автор: Herault Richard
Принадлежит: COMPAGNIE PLASTIC OMNIUM

A cylinder for a movable bodywork element of a motor vehicle, capable of containing a fluid, comprising a chamber and a piston. The piston consists of a rod and a head. The head of the piston has a surface opposite the rod that faces a surface at the bottom of the chamber. The bottom of the cylinder chamber comprises at least one stop. The stop has a contact surface impermeable to fluid that faces at least a portion of at least one of the surfaces. The contact surface of the stop is arranged in such a way as to expel the fluid located between the contact surface and the portion of at least one of the surfaces. 1. A cylinder for a movable bodywork element of a motor vehicle capable of containing a fluid , comprising a chamber and a piston comprising a rod and a piston head , said piston head having a surface opposite said rod and a surface in contact with said rod , said surfaces each being opposite a surface of a bottom of said chamber ,wherein said cylinder comprises at least one stop opposite at least one of said surfaces, said at least one stop having at least one contact surface impermeable to said fluid, said at least one contact surface being opposite a portion of at least one of said surfaces and being arranged to press against said portion of said at least one of said surfaces so as to expel said fluid located between said at least one contact surface and said portion.2. The cylinder according to claim 1 , wherein said surface of bottom of said chamber comprises said at least one stop having said at least one contact surface impermeable to said fluid arranged to press against said portion of said surface of said piston head claim 1 , so as to expel said fluid located between said surface of said piston head and said at least one contact surface of said at least one stop.3. The cylinder according to claim 1 , wherein said surface of said head comprises said at least one stop having said at least one contact surface impermeable to said fluid arranged to press ...

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Номер записи: 98
11-01-2018 дата публикации

FLUIDIC DAMPER

Номер: US20180010665A1
Автор: ASHIBA Masahiro
Принадлежит:

The first piston body includes a first passage which has a first opening that opens to the first chamber on the coupling surface with the second piston body and extends in the axial direction, and a second passage which has a second opening on the coupling surface, extends in the axial direction and has a third opening that opens to the second chamber, the second piston body is coupled to the first piston body to prevent direct communication with the first chamber of the second opening, the second opening has an inner opening portion that opens further inward in the radial direction than the first opening, and the inner opening portion communicates with a third passage formed in the second piston body. 17-. (canceled)8. A fluidic damper comprising:a cylinder in which a working fluid is sealed;a piston slidably provided in the cylinder to partition the interior of the cylinder into a first chamber and a second chamber; anda piston rod connected to the piston and having one end extending to the outside of the cylinder,wherein the piston includes a first piston body and a second piston body coupled to each other at a coupling surface,damping force generating mechanisms are disposed on the second chamber side of the first piston body and the first chamber side of the second piston body,the first piston body includes a first passage which has a first opening that opens to the first chamber in the coupling surface with the second piston body and extends in the axial direction, and a second passage which has a second opening on the coupling surface with the second piston body, extends in the axial direction and has a third opening that opens to the second chamber,the second piston body is coupled to the first piston body to prevent direct communication with the first chamber of the second opening,the second opening has an inner opening portion that opens further inward in the radial direction than the first opening, the inner opening portion communicating with a third ...

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Номер записи: 99
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: 100