| Entries |
| Document | Title | Date |
|---|
| 20080236968 | HYDRAULIC BUFFERING APPARATUS - A hydraulic buffering apparatus in which an impact from the road surface is alleviated even when the impact due to high-frequency vibrations are generated, so that the ride quality of a vehicle is improved. A piston is provided in a cylinder for partitioning the interior of the cylinder into a rod-side oil chamber on the side of a piston rod and a counter-rod-side oil chamber. The two oil chambers are in communication with each other via a pair of ports provided on the piston. Damping valves are respectively provided at exit ends of the pair of ports respectively so as to be openable and closable. A supporting member holds the piston and the damping valves. The supporting member is slidably arranged on a shaft of the piston rod and is held between stoppers provided on the shaft of the piston rod via resilient members. | 10-02-2008 |
| 20080245631 | Piston/cylinder unit with solenoid valve in piston - A piston/cylinder unit includes a closed cylinder filled with a fluid under pressure, a piston dividing the cylinder into a first working chamber and a second working chamber, and a piston rod extending through the second working chamber. A passage through the piston connects the first working chamber to the second working chamber, and a valve closing member is movable between an open position and a closed position wherein the member closes the passage. A solenoid includes a coil, a coil core, and an armature in the piston, the armature driving the valve closing member between the closed position and the open position in response to a magnetic field produced by a current applied to the coil, the cylinder forming a magnetic field guide tube. The coil is supplied with current by a power line in the piston rod, and may be grounded to the piston rod or the cylinder. | 10-09-2008 |
| 20080277217 | Vehicle damper of variable damping force - A vehicle damper of variable damping force including a cylinder, a piston and valves is disclosed. The valves have opening/closing parts and supporting parts. The opening/closing parts and the supporting parts are positioned separately so that a sufficient distance is obtained. Lengthening the distance from the supporting parts to the opening/closing parts makes it possible to reduce the opening and closing force of the opening/closing parts and to obtain highly responsive valves. | 11-13-2008 |
| 20090057079 | Disc spring intake - A disc valve assembly for a shock absorber opens due to axial movement of a valve disc. The valve disc is biased against a valve body by a valve spring. The valve spring is designed to provide a circumferentially asymmetrical load biasing the valve disc against the valve body. The disc valve assembly can be used as a piston rebound valve assembly, a piston compression valve assembly, a base valve compression valve assembly or a base valve rebound valve assembly. | 03-05-2009 |
| 20090057080 | Shock absorber having a full displacement valve assembly - A shock absorber includes a piston assembly disposed within a pressure tube. The piston assembly has a first and a second housing and a valve assembly located adjacent the first housing. The valve assembly has a valve disc which engages the first housing to close at least one of a first plurality of passages extending through the first and second housings and a biasing member for applying a load to the valve disc. | 03-05-2009 |
| 20090065315 | Damping force generating mechanism for shock absorber - A shock absorber comprises a first passage ( | 03-12-2009 |
| 20090107783 | Single Cylinder Type Hydraulic Shock Absorber for Vehicle - A single cylinder type hydraulic shock absorber for a vehicle ( | 04-30-2009 |
| 20090107784 | Hydropneumatic Spring and Damper System - The hydro-pneumatic spring damping device in particular for wheeled vehicles or tracked vehicles includes at least one hydro-pneumatic element ( | 04-30-2009 |
| 20090255768 | BICYCLE SUSPENSION HAVING STROKE AND DAMPER ADJUSTMENT - A bicycle suspension including a stroke adjustment unit, a suspension damper, and a damper adjustment unit. The stroke adjustment unit is configured to adjust a stroke of the bicycle suspension, which is configured to expand and contract within the stroke. The suspension damper is configured to apply damping force to the bicycle suspension, and the damper adjustment unit is configured to adjust the damping force applied by the suspension damper in accordance with the stroke adjusted by the stroke adjustment unit. | 10-15-2009 |
| 20100012451 | AMPLITUDE SELECTIVE SHOCK ABSORBER - An amplitude selective shock absorber includes a cylinder, a piston rod axially movable within the cylinder, a stationary piston valve fixedly mounted on the piston rod to divide a space of the cylinder into a rebound chamber and a compression chamber, a floating piston valve mounted on the piston rod to be movable in an axial direction in the rebound chamber, a stopper secured to the piston rod above the floating piston valve, and frustoconical leaf springs disposed between the floating piston valve and the stationary piston valve and between the floating piston valve and the stopper, respectively. | 01-21-2010 |
| 20100044173 | SELF-ADJUSTABLE SHOCK ABSORBER, WITH SELF-CORRECTING DAMPING CHARACTERISTIC, HAVING CURVED, CYLINDRICAL AND PLANAR FILLING VALVES - Automotive self-adjustable shock absorber with self-correcting damping characteristic, having curved, cylindrical and planar filling valves has single or double guide, seal by removable joint ( | 02-25-2010 |
| 20100263973 | Shock Absorber Having Unidirectional Fluid Flow - 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. | 10-21-2010 |
| 20100263974 | INTEGRATED AND SELF-CONTAINED SUSPENSION ASSEMBLY HAVING AN ON-THE-FLY ADJUSTABLE AIR SPRING - An integrated and self-contained suspension assembly having a gas spring integrated with a shock absorber (damper) is described. The rigid gas cylinder of the air spring is divided into a first gas chamber and a second gas chamber. A flow port connects the first and second gas chambers, and can be manually opened or closed by valve and a simple one-quarter turn rotation of an external knob to instantly switch the gas spring between two different spring rates. The different spring rates are functions of the separate or combined volumes of the two. gas chambers. The integrated suspension assembly is compactly packaged and self-contained, i.e., does not require any externalities, such as gas sources or electricity, to operate. | 10-21-2010 |
| 20100307876 | AIR CUSHION MECHANISM OF PNEUMATIC CYLINDER - A body-side cushion structural body attached to a body and a piston-side cushion structural body integrally moving with a piston are disposed outside the body, a cushion rod is disposed on either one of the cushion structural bodies, while a rod fitting hole is disposed in the other cushion structural body, a cushion packing is disposed at a spout portion of the rod fitting hole, and moreover, a throttle valve that discharges air in the rod fitting hole to the outside with flow-rate adjustment is disposed so as to configure an air cushion mechanism that stops the piston in a buffering manner. | 12-09-2010 |
| 20110056783 | SHOCK ABSORBING DEVICE - A shock absorbing device includes a cylinder. A partition wall member is inserted into the cylinder to be free to slide and partitions an interior of the cylinder into two operating chambers. A passage connects the two operating chambers. A free piston is inserted into a pressure chamber to be free to slide and partitions the pressure chamber into one chamber that communicates with one operating chamber via a one side flow passage and another chamber that communicates with the other operating chamber via another side flow passage. A spring element generates a biasing force for suppressing displacement of the free piston relative to the pressure chamber. One or both of a bypass flow passage that connects the other chamber and the one operating chamber and a bypass flow passage that connects the one chamber and the other operating chamber is provided. A relief valve is provided in the bypass flow passage. | 03-10-2011 |
| 20110214956 | REMOTELY OPERATED BYPASS FOR A SUSPENSION DAMPER - A damper assembly with a bypass for a vehicle comprises a pressure cylinder with a piston and piston rod for limiting the flow rate of damping fluid as it passes from a first to a second side of said piston. A bypass provides fluid pathway between the first and second sides of the piston separately from the flow rate limitation. In one aspect, the bypass is remotely controllable from a passenger compartment of the vehicle. In another aspect, the bypass is remotely controllable based upon one or more variable parameters associated with the vehicle. | 09-08-2011 |
| 20110253493 | DAMPER - A one-way hydraulic or pneumatic damper ( | 10-20-2011 |
| 20110284333 | DAMPER - Damper comprising a housing, which encloses a working chamber and a compensating chamber and has a centre longitudinal axis, a damping fluid located at least partially in the working chamber, a guide and sealing unit, which terminates the housing at a first housing end, a piston device comprising a piston rod, which, sealed by the guide and sealing unit, is guided out of the housing, and a piston fastened to the piston rod and guided in the housing along the centre longitudinal axis, wherein the piston divides the working chamber into a first part working chamber with a first working chamber end and a second part working chamber with a second working chamber end, arranged at the first working chamber end is a first closing element, with a first compensating channel, which forms a through-flow connection between the first part working chamber and the compensating chamber, arranged at the second working chamber end is a second closing element, with a second compensating channel, which forms a through-flow connection between the second part working chamber and the compensating chamber, and the piston device has at least one through-flow channel, which forms a through-flow connection between the part working chambers, and the at least one through-flow channel has an effective flow cross section which can be adjusted by means of an adjusting element. | 11-24-2011 |
| 20120199429 | HYDRAULIC SHOCK ABSORBER AND DAMPING FORCE GENERATOR - A hydraulic shock absorber includes: a dividing member dividing a closed space and having a communicating passage for communicating divided spaces; a valve covering an open end of the communicating passage; a bolt penetrating through the dividing member and the valve; and a nut fastening the dividing member and the valve together with the bolt. The bolt or the nut has a head fitted with an industrial tool, and a base end arranged on a valve side beyond the head to contact with the valve and including an extending part extending outside an outer shape of the head in a radial direction, a facing part of the base end facing the valve comes into contact with the valve at a position inside an outermost end of the extending part in the radial direction, and an outer region outside a contact part does not come into contact with the valve. | 08-09-2012 |
| 20120247893 | BICYCLE SHOCK ASSEMBLIES - A shock absorber, which is particularly applicable to bicycles, includes a mount body, a first cap portion, a second cap portion, and a fluid cylinder. The fluid cylinder cooperates with a valve assembly that is offset from the mount body. The first and second cap portions enclose a gas cavity or gas chamber. One of the first and second cap portions is interchangeable with other caps so as to alter the performance of the shock absorber by altering the size of the gas chamber. The replaceable cap cooperates with the mount body such that it can be replaced without removing the shock absorber from a bicycle. | 10-04-2012 |
| 20120312649 | Shock Absorbers - A motion damping device, such as a shock absorber, has a damper valve having a valve body ( | 12-13-2012 |
| 20130001030 | BI-STABLE SHOCK ABSORBER ASSEMBLY - A shock absorber assembly including a fluid for absorbing forces between the body and the wheel of a motor vehicle. The shock absorber includes a valve having a resilient disc engaging a piston for impeding the passage of fluid through the aperture of the piston. A bi-stable solenoid is disposed in the housing and is interconnected with the resilient disc of the valve. The bi-stable solenoid's armature is moveable between a first stable position for applying a first biasing force against the resilient disc of the valve and a second stable position for applying a second biasing force being less than the first biasing force against the resilient disc of the valve. The adjustment of the biasing force on the valve also adjusts the damping force of the shock absorber. | 01-03-2013 |
| 20130008750 | DUAL SPRING VARIABLE VALVING SYSTEM - A shock absorber having a cylindrically shaped housing including a piston dividing the housing into a compression chamber and a rebound chamber. The piston presents a plurality of apertures for allowing oil to flow between the compression and rebound chambers. A rebound resilient disc is disposed in the compression chamber for obstructing the flow of oil from the rebound chamber to the compression chamber. A two-spring adjustable valving system is disposed in the compression chamber for extorting a biasing force against the rebound resilient disc. A sleeve extends between the first and second springs to interconnect the first and second springs. An actuator is connected to the second spring through a spindle for selectively compressing or expanding the second spring to adjust the biasing force on the rebound resilient disc. | 01-10-2013 |
| 20130020159 | LOW NOISE VALVE ASSEMBLY - A shock absorber includes a valve assembly which includes a valve disc engaging an inner and outer valve land defined by a valve body. The inner valve land is a non-circular valve land such that a radial dimension between the inner and outer valve land varies based upon a circumferential position of the radial dimension. The varying radial dimension provides a progressive valve opening for the valve assembly. | 01-24-2013 |
| 20130105260 | Suspension Damper Device For A Bicycle | 05-02-2013 |
| 20130118847 | MULTI-MODE SHOCK ASSEMBLY - 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. | 05-16-2013 |
| 20130126282 | PISTON FOR A DAMPING-ADJUSTABLE SHOCK-ABSORBER, PARTICULARLY FOR A VEHICLE SUSPENSION, PROVIDED WITH FOUR PASSIVE FLOW-CONTROL VALVES AND WITH A FLOW-DIVIDING SOLENOID VALVE | 05-23-2013 |
| 20130180814 | COMBINING STRUCTURE OF SHOCK ABSORBER - Disclosed herein is a combining structure of a shock absorber including a stopper assembly adapted to surround opposite ends of a bypass passage formed in a piston rod of the shock absorber, with at least one gateway provided to promote smooth flow of a working fluid, and to keep a piston valve firmly pressed against the piston rod and fixed. The combining structure may ensure that the overall length of the shock absorber does not unnecessarily increase, while generating normal damping force without interference with flow of the working fluid. | 07-18-2013 |
| 20130220750 | SHOCK ABSORBER HAVING UNIDIRECTIONAL FLUID FLOW - 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. | 08-29-2013 |
| 20130264158 | SHOCK ABSORBER HAVING UNIDIRECTIONAL FLUID FLOW - 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. The piston includes a check valve allowing the fluid to flow unidirectionally from a cap side chamber to a rod side chamber. An adaptive 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 by varying the fluid pressure supplied to the flow regulator. | 10-10-2013 |
| 20130313057 | HYDRAULIC SHOCK ABSORBER - A hydraulic shock absorber includes: a cylinder which demarcates a piston oil chamber and a rod oil chamber; an outer cylinder body which demarcates between the cylinder and the outer cylinder body a reflux path that connects the piston oil chamber and the rod oil chamber with each other and which demarcates between a damper case and the outer cylinder body a reservoir chamber; and a valve structure mounted to the cylinder and the outer cylinder body. The valve structure has a valve for controlling an oil flow between the piston oil chamber and the reflux path and between the piston oil chamber and the reservoir chamber. The valve structure comprises a first valve structure mounted to an open end of the cylinder and a second valve structure mounted to an open end of the outer cylinder body. A cylinder assembly and an outer cylinder assembly are independently arranged. | 11-28-2013 |
| 20130319804 | SHOCK ABSORBER WITH FOUR CHAMBERS - A shock absorber has a first pressure tube and a second pressure tube. A first piston is disposed within the first pressure tube and a second piston is disposed within the second pressure tube. Movement of the first and second pistons within their respective pressure tubes control both damping characteristics for the shock absorber and stiffness for the shock absorber. Valving in the pistons and/or external valving associated with each pressure tube generates both the damping characteristics and the stiffness. | 12-05-2013 |
| 20140008160 | REMOTELY OPERATED BYPASS FOR A SUSPENSION DAMPER - A damper assembly with a bypass for a vehicle comprises a pressure cylinder with a piston and piston rod for limiting the flow rate of damping fluid as it passes from a first to a second side of said piston. A bypass provides fluid pathway between the first and second sides of the piston separately from the flow rate limitation. In one aspect, the bypass is remotely controllable from a passenger compartment of the vehicle. In another aspect, the bypass is remotely controllable based upon one or more variable parameters associated with the vehicle. | 01-09-2014 |
| 20140008161 | METHODS AND APPARATUS FOR POSITION SENSITIVE SUSPENSION DAMPING - Methods and apparatus for position sensitive dampening. In one aspect a fluid damper is provided comprising a damper chamber divided by a piston into a primary compression and a primary rebound chamber; a secondary compression chamber in fluid communication with the damper chamber; and an adjustable fluid meter controlling fluid flow out of the secondary compression chamber. | 01-09-2014 |
| 20140020996 | Vibration Damper With Frequency-Selective Damping Force - A vibration damper includes a piston rod which is axially movable in a cylinder and at which is arranged a housing in which an auxiliary piston is axially movably supported, wherein the auxiliary piston is connected to a piston rod portion at which a main piston is arranged, wherein the auxiliary piston and the main piston are outfitted with damping valves which generate a damping force for both movement directions of the piston rod and piston rod portion, wherein the main piston divides the cylinder into a working chamber on the piston rod side and a working chamber remote of the piston rod, both of which working chambers are filled with damping medium, and the auxiliary piston divides the housing into two auxiliary chambers, wherein the auxiliary piston generates a damping force over its entire stroke path, which damping force is always greater than the damping force of the main piston at an identical stroke speed. | 01-23-2014 |
| 20140027219 | REMOTELY OPERATED BYPASS FOR A SUSPENSION DAMPER - A damper assembly with a bypass for a vehicle comprises a pressure cylinder with a piston and piston rod for limiting the flow rate of damping fluid as passes from a first to a second side of said piston. A bypass provides fluid pathway between the first and second sides of the piston separately from the flow rare limitation. In one aspect, the bypass is remotely controllable from a passenger compartment of the vehicle. In another aspect, the bypass is remotely controllable based upon one or more variable parameters associated with the vehicle. | 01-30-2014 |
| 20140090940 | SHOCK ABSORBER - 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. | 04-03-2014 |
| 20140116828 | SHOCK ABSORBER - At least one of fluid paths of a shock absorber is a bypass path including: a one-side opening opened to a chamber in one side; the other-side opening opened to a chamber in the other side; a one-side shaft member fluid path that is connected to the one-side opening and passes through an inner side of the shaft member; the other-side shaft member fluid path that is connected to the other-side opening and passes through the inner side of the shaft member; and a support member fluid path formed inside the support member to connect the one-side shaft member fluid path and the other-side shaft member fluid path. The valves provided in the bypass path are housed in the support member. | 05-01-2014 |
| 20140124312 | BYPASS FOR A SUSPENSION DAMPER - A vehicle suspension damper comprises a cylinder and a piston assembly including a damping piston along with working fluid within the cylinder. A bypass permits fluid to avoid dampening resistance of the damping piston. A fluid path through the bypass is controlled by a valve that is shifted by a piston surface when the contents of at least one predetermined volume is injected against the piston surface which acts upon the valve. In one embodiment, the bypass is remotely operable. | 05-08-2014 |
| 20140138197 | DAMPER WITH VARIABLE DAMPING FORCE - A variable damping force member is used in a vehicle suspension device and the damping force of which can be changed. The variable damping force member is equipped with a piston which is slidably housed in a cylinder filled with a fluid and which divides the cylinder into a first fluid chamber and a second fluid chamber, and has fluid passages connecting the first and second fluid passages. A valve member is provided in the piston for blocking the fluid passages, and for opening the fluid passages when the piston slides. A piezoelectric body is connected to the valve member, and pushes the valve member towards the fluid passages when voltage is applied. A bellows is arranged on the valve member so as to seal the piezoelectric body from the fluid, and the bellows biases the piston in the direction in which the piezoelectric body is constricted. | 05-22-2014 |
| 20140182985 | SHOCK ABSORBER - A shock absorber includes a cylinder portion, a piston rod portion arranged as a single member, a pair of protruding members protruding from an outer circumferential surface of the piston rod portion, and a piston valve assembly having the piston rod portion passing therethrough. The piston valve assembly includes a piston portion, a valve element, and a threaded portion arranged to extend or contract in an axial direction as a result of rotation of a female thread portion relative to a male thread portion. The piston valve assembly is arranged such that the piston portion and the valve element are retained to the piston rod portion so as not to move with respect to the axial direction of the piston rod portion by a stretching force generated between the pair of protruding members due to extension of the threaded portion. | 07-03-2014 |
| 20140182986 | VARIABLE DAMPING FORCE DAMPER - Provided is a solenoid-type variable damping force damper that improves the strength of the piston and prevents wire break in the electromagnetic coil. A piston includes a piston main body, an expansion-side valve plate, a contraction-side valve plate, an electromagnetic coil, and a bolt. The piston main body is an integrally formed component made of a ferromagnetic material, and includes a hollow cylindrical outer yoke that is in slidable contact with an inner peripheral surface of a cylinder, a columnar inner yoke having an outer peripheral surface opposing an inner peripheral surface of the outer yoke via first and second gaps, and a connection member connecting the outer yoke and the inner yoke with each other at an axially middle position of the piston and separating the first and second gaps from each other. The electromagnetic coil is fitted in the second gap of the piston main body. | 07-03-2014 |
| 20140216871 | DAMPER FOR RAILWAY VEHICLES - [Problem] Provided is a damper for railway vehicles that uses disk valves as damping valves while ensuring reliability and durability. | 08-07-2014 |
| 20140231199 | SHOCK ABSORBER - A shock absorber is provided. A first piston, a pilot valve, a second piston, and a rebound retainer are sequentially connected to a piston rod reciprocating within a cylinder. An upper portion of the second piston is provided inside the first piston. Due to a first compression chamber formed in the first piston, a second compression chamber formed in the second piston, a third compression chamber formed between the first piston and the second piston, and a fourth compression chamber formed in the rebound retainer, it is possible to improve a ride comfort by reducing a damping force over periods from an ultra-low-speed period to a high-speed period and it is possible to achieve the compact configuration and the cost reduction by reducing the overall length of the processing portion. | 08-21-2014 |
| 20140251742 | LIMITING SYSTEM FOR A VEHICLE SUSPENSION COMPONENT - A damper assembly is disclosed that includes a tubular member, a rod, a primary piston, a secondary piston, and a seal. The tubular member includes a sidewall and a cap positioned at an end of the sidewall. The sidewall and the cap defining an inner volume. The rod extends within the inner volume of the tubular member. The primary piston defines a contact surface and is positioned within the inner volume and coupled to an end of the rod. The secondary piston defines a central aperture and a channel. Engagement of the primary piston and the secondary piston forms a flow conduit between the channel and the contact surface. The seal is disposed between an outer surface of the secondary piston and the sidewall such that a flow path is formed through the central aperture and the flow conduit. | 09-11-2014 |
| 20140262652 | ROD GUIDE ARRANGEMENT FOR ELECTRONICALLY CONTROLLED VALVE APPLICATIONS - A shock absorber has a housing with a piston rod assembly disposed therein. A first rod guide member is secured within a first portion of the housing so as to be concentrically disposed about at least a portion of the piston rod assembly. A second rod guide member is secured within the housing adjacent the first rod guide member so as to be concentrically disposed about at least another portion of the piston rod assembly. An electronically controlled valve assembly is disposed within the second rod guide member and is in communication with the first rod guide member. | 09-18-2014 |
| 20140262653 | METHODS AND APPARATUS FOR LUBRICATING SUSPENSION COMPONENTS - Methods and apparatus for lubricating suspension seals by pumping fluid to the seals using a compression or rebound action of a suspension component. | 09-18-2014 |
| 20140291088 | SHOCK ABSORBER - The present invention provides a shock absorber having improved performance and durability. A damping force generation mechanism | 10-02-2014 |
| 20140299426 | HYDRAULIC SUSPENSION DAMPER AND METHOD OF ASSEMBLING THEREOF - A hydraulic damper includes at least one valve assembly ( | 10-09-2014 |
| 20140305756 | CO-AXIAL ADJUSTABLE DAMPING ASSEMBLY - A co-axial adjustable damping assembly includes a cylinder unit having an outer case with a cap, and an inner case having a piston unit which movably contacts inside of the outer case. A valve unit extends through the piston unit and is inserted into the inner case. A piston is connected to the valve unit and defines a first oil chamber and a second oil chamber in the inner case. A path communicates between the first and second oil chambers. A piston rod extends through the inner case, the outer case, the piston unit and the piston. A switching device is connected to the cap and has a first tube which has a cam part contacting the piston rod. A damping device has a driving rod inserted into the first tube. The driving rod is rotated to move the piston rod linearly to adjust the path. | 10-16-2014 |
| 20140311841 | VELOCITY PROGRESSIVE VALVING - A shock absorber has a valve assembly having a valve that is biased away from a valve body. A controlled restriction is defined between the valve and the valve body. During stroking of the piston of the shock absorber, the valve moves toward the valve body to close the restriction. The valve assembly can be used in the piston assembly, the base valve assembly or both. | 10-23-2014 |
| 20140318909 | SHOCK ABSORBER - A shock absorber for use in lowering heavy structures to the sea floor comprises a cylinder with a piston having a heavy piston rod. A plurality of channels extend from the bottom side of the piston to its top side, where the channels are closable by means of a valve body, which permits fluid movement up through the piston to a cylinder chamber above the piston, but not in the opposite direction. The cylinder chamber is provided with a plurality of exit nozzles having decreasing diameter in the direction towards the bottom of the chamber. When the piston rod impacts against its substructure on the sea floor, it will force the piston upwards in the chamber. The valve body will close the channels so that the water in the chamber has to escape mainly through the nozzles, thus giving the shock absorber the desired resisting force. | 10-30-2014 |
| 20140332332 | ORIFICE DISC FOR REGULATING FLOW IN DAMPER - A shock absorber for a vehicle includes a pressure tube that defines a fluid chamber. A piston disposed within the fluid chamber divides the fluid chamber into an upper working chamber and a lower working chamber. The piston defines a compression passage and a rebound passage which extend through the piston between the upper working chamber and the lower working chamber. A valve disc assembly engages the piston and controls the flow of fluid between the upper working chamber and the lower working chamber. The valve disc assembly includes a bleed disc that defines an orifice with a substantially non-linear contour. The orifice extends to an outer diameter of the bleed disc, and forms a bleed channel between the upper working chamber and the lower working chamber. | 11-13-2014 |
| 20140339033 | DAMPING FORCE VARIABLE SHOCK ABSORBER HAVING ADDITIONAL VALVE INSTALLED IN ROD GUIDE - Provided is a damping force variable shock absorber in which an additional valve is installed in a rod guide so as to implement performance that could not be implemented by a main valve. The damping force variable shock absorber includes: a base shell in which a damping force variable valve assembly is attached to an outside thereof; an inner tube which is installed inside the base shell and in which a piston rod is installed to be movable in a length direction; a piston valve which is connected to one end of the piston rod to partition an internal space of the inner tube into a rebound chamber and a compression chamber; a separator tube which is installed to partition a space between the base shell and the inner tube into a low-pressure chamber and a high-pressure chamber. | 11-20-2014 |
| 20140353097 | FREQUENCY SENSITIVE TYPE SHOCK ABSORBER - A frequency sensitive type shock absorber is provided. A housing has a bypass hole formed such that an upper portion of a chamber part is opened to connect to the opening, and a lower portion of the chamber part communicates with the compression chamber. A spool is formed within the chamber part and is elevated by a fluid flowing into the chamber part. A pair of partition members partitions the chamber part into upper and lower chambers and provides a restoring force to the spool. A guide member is formed between the pair of the partition members, has a elastic force, and guides the partition members to maintain positions thereof. A pair of elastic members is formed in the upper and lower chambers to prevent a fluid from penetrating between the pair of the partition members and the side of the chamber part, and assist a restoration of the partition members by elasticity. | 12-04-2014 |
| 20140353098 | SELECTIVELY FIXED DAMPER - An example method for operating a lockable damper includes moving a valve assembly together with a piston assembly between a retracted position and an extended position relative to a tube, the moving unassisted by the lockable damper. The method includes communicating a flow of hydraulic fluid through the valve assembly to damp the moving, and restricting the flow of hydraulic fluid through the valve assembly to limit the moving. | 12-04-2014 |
| 20150027829 | Shock Absorber With Frequency Dependent Passive Valve - A shock absorber has a pressure tube with a piston assembly slidably disposed within the pressure tube and attached to a piston rod. The piston assembly divides the pressure tube into an upper working chamber and a lower working chamber. The piston assembly includes a frequency dependent valve assembly attached to the piston rod which defines a housing attached to the piston rod and a piston disposed within the housing. The piston moves within the housing to control the fluid flow through a bypass fluid passage that bypasses the piston assembly. | 01-29-2015 |
| 20150041264 | HYDRAULIC SUSPENSION DAMPER WITH A FLOATING DISC VALVE - A hydraulic damper ( | 02-12-2015 |
| 20150047936 | AMPLITUDE SENSITIVE HYDRAULIC DAMPER - A hydraulic damper ( | 02-19-2015 |
| 20150053518 | SHOCK ABSORBER WITH FREQUENCY DEPENDENT PASSIVE VALVE - A shock absorber has a pressure tube with a piston assembly slidably disposed within the pressure tube and attached to a piston rod. The piston assembly divides the pressure tube into an upper working chamber and a lower working chamber. The piston assembly includes a frequency dependent valve assembly attached to the piston rod which defines a housing attached to the piston rod and a spool valve assembly. The spool valve assembly includes a spool valve and a bypass valve assembly that controls fluid flow through bypass passage that bypasses the piston assembly. | 02-26-2015 |
| 20150090549 | SHOCK ABSORBER - A shock absorber is provided having a housing, an inner tube, a piston rod, a piston which divides the interior of the inner tube into a lower chamber and an upper chamber, a first valve arrangement on the piston, a second valve arrangement at the upper end of the inner tube, and a third valve arrangement at the lower end of the inner tube. The shock absorber includes a first connection element on the lower chamber of the inner tube and a second connection element on the upper chamber of the inner tube, to connect a means for controlling the flow resistance of the working medium in the first valve arrangement and an ascending pipe which projects into the working medium received in the housing and by which working medium can be transferred from the housing acting as a tank into the upper chamber of the inner tube. | 04-02-2015 |
| 20150096853 | SUSPENSION APPARATUS - A suspension apparatus includes: a cylindrical outer tube; an inner tube a piston rod of which one end portion retains a piston; and a partition wall member that is mounted to an upper end portion of the inner tube to define an upper end portion of an annular oil chamber, that has a bowl portion, and that divides a space inside the inner tube into an inner space and an outer space of the bowl portion, in which the partition wall member divides the outer space into a gap space and a space other than the gap space, a through-hole is formed in the partition wall member, and at least one of the partition wall member and the inner tube is provided with a communication path through which an upper portion of the annular oil chamber communicates with the gap space. | 04-09-2015 |
| 20150096854 | Dampers - A piston and cylinder type damper is provided having a cylinder ( | 04-09-2015 |
| 20150129381 | CAM-OPERATED BI-DIRECTIONAL SHOCK ABSORBER DAMPER - The present disclosure relates to cam operated shock absorber damper systems for use with landing gear. The cam operated shock absorber damper systems may comprise a cylinder and a piston mounted to slide telescopically in the cylinder and a snubber ring comprising rebounding orifices and compression orifices. | 05-14-2015 |
| 20150323037 | SHOCK ABSORBER - A shock absorber includes a cylinder; a piston movable therein and dividing the cylinder in first and second cylinder chambers; a cylinder attachment for attachment to a first part of a vehicle and connected to the cylinder; and a piston attachment for attachment to a second part of a vehicle and connected to the piston. The piston attachment and cylinder attachment move towards one another on an inward movement and away from one another on an outward movement. The piston includes a first inward channel; a first inward valve to open the first inward channel on inward movement; a first outward channel; a first outward valve to open the first outward channel on outward movement; a second inward channel; a second inward valve to open the second inward channel on inward movement; a second outward channel; and a second outward valve to open the second outward channel on outward movement. | 11-12-2015 |
| 20150345586 | SHOCK ABSORBER - A shock absorber includes a cylinder and a piston movable within the cylinder along a cylinder wall, the piston dividing the cylinder in a first cylinder chamber and a second cylinder chamber, which are filled with fluid. The shock absorber also includes cylinder and piston attachments for attachment to parts of a vehicle, the piston attachment and cylinder attachment moving towards one another in an inward movement and away from one another in an outward movement. Primary and auxiliary flow and valve arrangements allow fluid flow in between the first and second cylinder chambers to provide primary and auxiliary damping behavior of the shock absorber, respectively. The auxiliary flow and valve arrangement includes a first auxiliary flow and valve arrangement providing on outward movement a damping behavior showing a frequency dependency, and a second auxiliary flow and valve arrangement providing on inward movement a damping behavior showing a linear dependency | 12-03-2015 |
| 20150354658 | BYPASS FOR A SUSPENSION DAMPER - A vehicle suspension damper comprises a cylinder and a piston assembly including a damping piston along with working fluid within the cylinder. A bypass permits fluid to avoid dampening resistance of the damping piston. A fluid path through the bypass is controlled by a valve that is shifted by a piston surface when the contents of at least one predetermined volume is injected against the piston surface which acts upon the valve. In one embodiment, the bypass is remotely operable. | 12-10-2015 |
| 20150377314 | DAMPER ASSEMBLY - A damper assembly includes a tubular member, an outer cylinder positioned at least partially within the tubular member, an inner cylinder positioned at least partially within the outer cylinder, a cap coupled to the inner cylinder, a plunger received within the inner cylinder and coupled to an end of a rod extending at least partially within the inner cylinder, an annular piston fixed to the inner cylinder where the annular piston extends between the inner cylinder and the outer cylinder, and a barrier extending between the inner cylinder and the outer cylinder. The rod has an outer diameter that is smaller than an inner diameter of the inner cylinder. The plunger, the cap, and an interior of the inner cylinder at least partially define a first chamber. The barrier, the annular piston, an exterior surface of the inner cylinder, and the outer cylinder at least partially define a second chamber. | 12-31-2015 |
| 20160001795 | ACTUATOR UNIT - An actuator unit includes a rod side chamber and a piston side chamber defined by a piston; a tank; a first opening/closing valve communicating the rod side chamber with the piston side chamber; a second opening/closing valve communicating the piston side chamber with the tank; an suction passage allowing a working fluid to flow from the tank toward the piston side chamber; a rectifying passage allowing the working fluid to flow from the piston side chamber toward the rod side chamber; a pump suppling the working fluid to the rod side chamber; a first discharge passage and a second discharge passage respectively communicating the rod side chamber to the tank; a first passive valve provided on the first discharge passage; a second passive valve provided on the second discharge passage; and a third passive valve configured to communicate and block the first discharge passage. | 01-07-2016 |
| 20160003319 | Piston-Cylinder Unit - A lockable piston-cylinder unit having a cylinder that is closed at both ends and filled with pressurized fluid and in which a piston that is sealed relative to the inner wall of the cylinder is displaceably guided. The piston divides the interior of the cylinder into a first working chamber and a second working chamber. A piston rod is arranged at the piston and is guided out of the cylinder | 01-07-2016 |
| 20160003321 | METHODS AND APPARATUS FOR COMBINED VARIABLE DAMPING AND VARIABLE SPRING RATE SUSPENSION - 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. | 01-07-2016 |
| 20160061283 | SHOCK ABSORBER - An elastic seal member fixedly attached to a back surface side of a disk valve is fitted in a recessed portion of a pilot body, by which a pilot chamber is formed. Then, vale opening of the disk valve is controlled by an inner pressure in the pilot chamber. The elastic seal member includes a thick proximal portion and a thin lip portion. A seal portion protruding on an outer circumferential portion of the lip portion is in sliding contact with an inner circumferential portion of an outer cylindrical portion of the pilot body. Deflection of the thin lip portion can reduce a sliding resistance while ensuring a sealing performance of the seal portion. | 03-03-2016 |
| 20160061284 | SHOCK ABSORBER - A damping force is generated by controlling a flow of oil caused by a sliding displacement of a piston in a cylinder with the aid of a disk valve, against extension and compression of a piston rod. An elastic seal member, fixedly attached to a back surface side of the disk valve, is fitted in a recessed portion of a pilot body, by which a pilot chamber is formed and valve opening of the disk valve is controlled by inner pressure in the pilot chamber. The elastic seal member is in abutment with a bottom portion of the recessed portion, and the disk valve is urged toward inner and other seat portions by elasticity of the elastic seal member. This configuration ensures that the disk valve can be closed without a set load provided from deflection of the disk valve, thereby generating a stable low damping force. | 03-03-2016 |
| 20160091044 | SHOCK ABSORBER - A damping-force generating device included in a shock absorber includes: a main valve that opens and closes for controlling a flow of oil (working fluid) caused by sliding of a piston in a cylinder and thereby generates a damping force; a first pressure chamber and a second pressure chamber separated by the main valve; a compression-side inlet check valve and an extension-side inlet check valve that allow only inflow of the oil into the first pressure chamber; and a compression-side outlet check valve and an extension-side outlet check valve that allow only outflow of the oil from the second pressure chamber. The first pressure chamber and the second pressure chamber are formed in a substantially double-ring structure. | 03-31-2016 |
| 20160146286 | SHOCK ABSORBER HAVING ORIFICE CHECK DISC - A shock absorber for a vehicle includes a pressure tube that defines a fluid chamber and a piston disposed within the fluid chamber. The piston divides the fluid chamber into an upper working chamber and a lower working chamber, and defines a compression passage and a rebound passage. A valve disc assembly of the shock absorber engages the piston and controls the flow of fluid between the upper and lower working chambers. The valve disc assembly includes an orifice check disc and an orifice disc. The orifice disc defines a bleed passage between the upper and lower working chambers. The orifice check disc is disposed between the piston and the orifice disc. The orifice check disc closes the bleed passage as the fluid flows in a first direction and opens the bleed passage as the fluid flows in a second direction opposite of the first direction. | 05-26-2016 |
| 20160195152 | DAMPING FORCE CONTROL TYPE SHOCK ABSORBER | 07-07-2016 |
| 20160200163 | PRESSURE DAMPER AND DAMPING FORCE GENERATION MECHANISM | 07-14-2016 |
