3657results about "Springs/dampers design characteristics" patented technology

A method and apparatus are disclosed for cooling damping fluid in a vehicle suspension damper unit. A damping unit includes a piston mounted in a fluid cylinder. A bypass fluid circuit having an integrated cooling assembly disposed therein is fluidly coupled to the fluid cylinder at axial locations that, at least at one point in the piston stroke, are located on opposite sides of the piston. The cooling assembly may include a cylinder having cooling fins thermally coupled to an exterior surface of the cylinder and made of a thermally conductive material. The bypass channel may include a check valve that permits fluid flow in only one direction through the bypass channel. The check valve may be remotely operated, either manually or automatically by an electronic controller. A vehicle suspension system may implement one or more damper units throughout the vehicle, controlled separately or collectively, automatically or manually.

A vibration damper includes a cylinder within which a piston is slidably received thereby defining compression and rebound chambers. The piston has a bore with a valve seat through which fluid flows between those chambers. A poppet selectively engages the valve seat and forms a pilot chamber an opposite side of the poppet from the valve seat. The greater pressure within the compression or rebound chambers is applied by a first logic arrangement to the pilot chamber and a pilot spool control a fluid flow between the pilot chamber and a pressure cavity in the piston body. A second logic arrangement connects the pressure cavity to either the compression and rebound chamber which has the lesser pressure. A solenoid that moves the pilot valve element to control pressure in the pilot chamber and thus the amount that the poppet moves to allow fluid flow through the piston.

A shock absorber apparatus includes a response adjustment mechanism connected in fluid transmission relation between a first cylinder and a second cylinder that is configured to provide three or more adjustments for tuning the response of the shock absorber system. The shock absorber may also include a damping valve assembly which may include a step washer positioned concentrically around a piston rod, and in stacking relation, and may be further positioned proximate to a piston. The damping valve assembly may also include a pressure plate positioned concentrically around the step washer in sliding relation, and a plate spring positioned concentrically around the rod so that the plate spring is borne by the step washer and a portion of the plate spring is held in tension by the pressure plate.

A pressure operated valve is provided including an adjusting device, a spring and a vent connection. The adjusting device is axially movably arranged in a pressure chamber defined in the valve and comprises a valve body and a pressure intensifier. A space between the valve body and valve face defines a valve passage cross section. The spring is operatively arranged for holding the pressure intensifier in a floating arrangement in the pressure chamber. The pressure intensifier has a first side exposed to a pressure in the pressure connection opening and a second side facing away from the pressure connection opening. The second side of the pressure intensifier and the adjusting device define a low pressure chamber within the pressure chamber. The vent connection is an inflow restrictor arranged between the lower pressure chamber and a space having a lower pressure than the low pressure chamber.

By providing an elongated profile which incorporates a plurality of indentations formed therein, a load bearing/cushioning/supporting element is realized. By employing this construction, the element accommodates large strain under force, and shows good resiliency and repeated recovery. The element can be produced from a continuous extrusion process with immediate manipulation to re-shape the extrusion profile, or secondary thermal forming process which follows the extrusion process, or blow molding process, or injection molding process.

A dampening bearing support member having a plurality of bearings disposed between an object and a base with rheological fluid disposed around the bearings and structure to retain the rheological fluid in such position, with the rheological fluid being under the control of the user at times when it is desired to stiffen the rheological fluid and limit or prevent movement of the bearings and the object in relation to the base.

A damping brace having an axial force member for providing bearing forces against tensile or compressive forces, a constraining member for constraining the axial force member, and a stiffening part for supplementing the stiffness of the axial force member. An adhesion preventive coating is provided for preventing adhesion between the constraining member and the stiffening part. A length of the stiffening part extending along the axial direction and the gap between the stiffening part and the constraining member are defined in such a way as to prevent an end of the axial force member from rotating in the axial direction beyond a specific angle when the compressive force is applied to the force member.

Apparatus and method are provided for decreasing frictional effects in stacks of Belleville springs and limiting deflection of the springs. In one embodiment, carriers for springs overlap and minimize the effects of lateral forces that are developed as springs in a stack are loaded. Carriers may be used on mandrel guides, in cylindrical guides or without a guide. In other embodiments, maximum load and defection of springs may be provided by the spring carriers.

The present invention provides a linear compressor having an elastic body capable of reducing vibration transferred to a shell due to a motion of a moving part. The linear compressor includes a shell defining a hermetic space, a stationary part installed in the shell and having a mass of M_b, a moving part reciprocating linearly inside the stationary part at a frequency of ω to compress a fluid, and having a mass of M_a, a first elastic body having both ends supported on the moving part and the shell respectively, and having an spring constant of k_a, a second elastic body having both ends supported on the shell and the stationary part respectively, and having an spring constant of k_b, and a third elastic body having both ends supported on the stationary part and the moving part respectively, and having an spring constant of k. The frequency ω satisfies ω²>(k_a/M_a). In the above configuration, the spring constant k_c of the third elastic body is always a positive number, so that the third elastic body can be implemented with a mechanical elastic body more easily designed and controlled than a gas elastic body.

An air spring device includes an air spring (4) wherein gas is filled in an interior defined by an upper face plate (1), a lower face plate (2), as well as a cylindrical flexible diaphragm body (3) having opposite ends gas-tightly connected to the upper and lower face plates (1, 2), respectively. Between the lower face plate (2) and a lower supporting plate (8) spaced downward therefrom, a shear spring means (5) and a compression spring means (6) are series-connected, which are made mainly of rubber material. When a vertical load is applied to the air spring device, the shear spring means (5) and the compression spring means (6) are subjected mainly to shearing deformation and compressive deformation, respectively. The air spring device further includes an abutment member (10) allowing the compression spring means (6) to support the load in place of the shear spring means (5), after the deformation amount of the shear spring means (5) reaches a predetermined level.

In an attachment structure of an EA component, the EA component composed of a synthetic resin such as rigid urethane foam is attached to a trim serving as a member, with a first locking part therebetween. The first locking part includes a cylindrical part, an anchor, a flange, and a plurality of projections. The anchor has a flange shape extending from the rear end of the cylindrical part toward the outside. The flange extends from the leading end of the cylindrical part toward the outside. The projections protrude from the leading end of the cylindrical part in the direction parallel to the axis of the cylindrical part. The EA component is attached to the trim by setting the EA component on the trim while the projections are inserted in an opening.

A protective member includes outer and inner layers interconnected by multiple connectors under tension along their longitudinal axis. The connectors absorb energy from an impact force by resisting further tension along their longitudinal axis, can elongate along their longitudinal axis and allow the layers to move relative to each other. The protective member can be used in numerous applications and environments, including for participants in sports, in applications including bumpers, passenger cabins, car seats, beds, torso protection, ships, gloves, footwear and items.

A six-degree-of-freedom micro vibration suppression platform includes a basic platform, a load platform, six sets of single-degree-of-freedom active and passive composite vibration isolation devices that are exactly the same and a controller. Upper and lower ends of each set of single-degree-of-freedom active and passive composite vibration isolation devices are connected with the load platform and the basic platform, respectively. A control method includes: calculating a logical axis signal, calculating a logical axis control signal, calculating physical axis real-time control signals and a transfer step.

An impact and/or vibration absorbent material and protective articles making use of said material. An impact and/or vibration absorbent material of the present invention has at least two material layers. The individual layers of the impact and/or vibration absorbent material may be of the same material, or of different materials. Each material layer preferably contains a number of holes. The holes in one layer are located and arranged to be offset from the holes in an adjacent layer. The combination of inherent material properties and the inclusion and arrangement of holes renders such a material highly impact and/or vibration absorbent. Through use of a protective article of the present invention, the effects of impact and/or vibration forces on a user of the protective article can be minimized.

The invention discloses a hydraulic lining and a rail train. The hydraulic lining comprises a core shaft, a sleeve and an outer sleeve, wherein the sleeve sleeves outside the core shaft; a gap betweenthe core shaft and the sleeve is filled with a first rubber body; a groove is formed in the outer surface of the sleeve; the outer sleeve presses and sleeves outside the sleeve; two liquid cavities used for accommodating liquid are oppositely formed in the first rubber body in the radial direction; the groove and the outer sleeve are enclosed into a runner; and the two liquid cavities communicatewith each other through the runner. After the hydraulic lining is used on the rail train, the rail can be guaranteed to stably forward in a straight-moving process; and moreover, abrasion of wheels and a rail in a curve travelling state can be reduced.