A piston and cylinder type damper with a cylinder containing damping fluid. The damper is operable to perform a compression stroke and a return stroke. A piston rod that can engage with both a piston assembly and a return means. A sealing element is movable axially with respect to said piston rod such that said sealing means is operable to engage with both said piston assembly and said return means, such that, in said compression stroke the sealing means engages solely with said piston assembly, and in said return stroke engages solely with said return means.

An air spring strut for a motor vehicle comprising an air spring with a shock damper for the spring-cushioning and damping of oscillations of a motor vehicle chassis, wherein the air spring comprises an air spring cover and a rolling piston, wherein a rolling bellows of elastomer material is clamped in an airtight manner between the air spring cover and the rolling piston, wherein the air spring cover comprises a damper bearing receptacle in which a damper bearing of the shock damper is arranged, and wherein the air spring cover comprises a clamping base to which a first end of the rolling bellows is attached, wherein at least the damper bearing receptacle of the air spring cover is produced from a plastic material.

A spring device (100) for a wheel suspension (200) for a vehicle (300) is described. The spring device (100) comprises an elongated elastic torsion device (102) configured to rotate about a central longitudinal axis (R) at a load (L). The torsion device (102) comprises elongated elastic elements (130) that comprise an internal cavity (132).

Compliant mounting systems, devices, and methods for mounting a vehicle engine to a vehicle structure or base include a top mount, a lower mount, a center trunnion mount, and an aft mount which are configured to react forces transmitted by the engine to the vehicle structure. Metallic and elastomeric elements can provide vibrational and force isolation characteristics. Stops (e.g., snubbing elements) allow for a specific range of motion before internal mount structures contact each other to act as a conventional hard mount. Fluid elements and compressible gas-filled spaces/bladders may be incorporated to provide fluid damping behaviors to complement the metallic and elastomeric elements.

The disclosure relates to the field of vehicle energy recovery devices, and particularly discloses a vehicle shock absorber capable of generating electricity which includes a shock absorber body, a piston rod and a bearing spring. The shock absorber body includes an inner cylinder and an outer cylinder, and an oil storage chamber communicated with an inner cavity of the inner cylinder is formed between the inner cylinder and the outer cylinder. Both ends of the bearing spring are respectively connected to an upper end of the piston rod and the outer cylinder. A bottom end of the piston rod is connected to a piston in sliding fit with the inner cylinder, and a coil is sealedly disposed in the piston. Opposite sides inside the oil storage chamber are each provided with a permanent magnet with an opposite magnetic pole, and the coil is connected to an electrode lead.

A hydroelastic damper comprising at least a first resilient assembly that is provided with a first inner strength member engaged at least in part in a first outer strength member, a first resilient member providing resilient return for the first outer strength member and the first inner strength member towards a rest position (POSREP). The hydroelastic damper comprises at least one hydraulic assembly provided with a first hydraulic chamber and a second hydraulic chamber in communication with each other via a connection provided in a first wall of the hydraulic assembly. A first floating piston is movable at least in translation along the longitudinal axis relative to the first inner strength member and to the first outer strength member, the first hydraulic chamber being defined at least by the first floating piston and the first wall in order to protect the first resilient member.

A pneumatically adjustable lifting apparatus utilizes inflatable spring devices for lifting and precisely positioning a load at a desired location. Variations in the forces produced by the load cause the inflatable spring devices to expand or compress thereby allowing soft mating between components that need to be connected together, such as assembling or disassembling large threaded connections. Pneumatic pressure in the inflatable spring devices may be adjusted depending upon the particular load. The pneumatically adjustable lifting apparatus provides lightly damped vertical travel with a substantially linear force profile over a relatively wide displacement range. Recirculating linear ball bearings cooperate with the linear loading characteristics of the inflatable spring devices to minimize the vertical motion damping of the pneumatically adjustable lifting apparatus.

Compliant mounting systems, devices, and methods for mounting a vehicle engine to a vehicle structure or base include a top mount, a lower mount, a center trunnion mount, and an aft mount which are configured to react forces transmitted by the engine to the vehicle structure. Metallic and elastomeric elements can provide vibrational and force isolation characteristics. Stops (e.g., snubbing elements) allow for a specific range of motion before internal mount structures contact each other to act as a conventional hard mount. Fluid elements and compressible gas-filled spaces/bladders may be incorporated to provide fluid damping behaviors to complement the metallic and elastomeric elements.

Shock and vibration isolators and their use to isolate loads from vibration and shock, where the isolators include a fluid spring assembly and a mechanical spring assembly, where the fluid spring assembly and the mechanical spring assembly are arranged in series. The mechanical spring assembly includes a first spring and a second spring arranged so that compression of the mechanical spring assembly simultaneously directly compresses the first spring and indirectly compresses the second spring via an intermediate actuator, such that the first and second spring are compressed in parallel.

A vehicle seat comprising a seat part extending in the vehicle longitudinal direction (X) and in the vehicle transverse direction (Y) and including a backrest part is provided. The vehicle seat includes a seat substructure for suspending and/or damping at least the seat part with respect to the body of a vehicle. The seat substructure comprises at least one horizontal suspension device that includes a body-side lower part and a seat-part-side upper part displaceable with respect thereto. A coupling device is arranged interactively between the seat-part-side upper part and the body-side lower part, and includes a deformable suspension element as a first coupling element and a bearing and deformation device as a further coupling element.