A damping stopper is interposed between two members axially displaced relative to each other and is provided with an elastic body which, when the interval between the two members decreases, is axially compressed by the two members and expands radially outward. In the elastic body, a second member suppressing the expansion is located in one axial region and attached to the outer periphery. When axially compressed by the two members, the elastic body expands while receiving resistance by the second member. The expanding elastic body contacts the side wall of one of the two members.

A dual rate jounce bumper and a vehicle containing the dual rate jounce bumper are useful.

A support ring for a resiliently deformable jounce bumper is made of a cast material. The support ring contains an inner circumferential surface that defines a through-opening extending along a longitudinal axis, an outer circumferential surface, a first axial end face, an opposing second axial end face, and a plurality of recesses configured to reduce the material mass which the support ring is made of. The through-opening is configured to fit around the jounce bumper. The plurality of recesses may be formed in at least one of the two end faces such that the recesses extend from the respective end face in the axial direction into the material of the support ring.

The present disclosure relates to an apparatus that has a conduit and an impact absorber assembly. The impact absorber assembly includes a core and a frame, where the core has an aperture configured to receive the conduit and the frame includes a cavity sized and shaped to receive the core. The frame also has a first side wall and a second side wall that are spaced apart to define, at least in part, a cavity. The first and second side walls also include an intermediate portion that includes a waveform shape. The waveform shape includes at least a pair of ridges and a trough between the ridges.

A buffer stopper capable of increasing an absorbable energy amount without causing changes in characteristics due to wear of a buffer body. In order to achieve the object, the buffer body containing a rubber elastic body disposed between an end surface formed in a housing and an end surface formed in a shaft which is relatively movable in the axial direction with respect to the housing and a wear resistant sheet which is provided so as to surround the outer peripheral surface of the buffer body and which can contact an inner peripheral surface of the housing by expansion and deformation in the radial direction of the buffer body are provided.

Externally-damped electromechanical valve assemblies well-suited for deployment within high vibratory operating environments, such as those associated with work vehicle engines, are provided. In embodiments, the valve assembly includes a housing through which a flow passage extends, a valve element positioned in the flow passage, a valve actuator, and control electronics electrically coupled to the valve actuator. The valve assembly may also contain a constrained layer damper including a first mass element and a first viscoelastic layer. The first mass element is mounted in suspension to the housing exterior for movement relative thereto when the first mass element is excited by vibrations transmitted through the housing. Constrained between the first mass element and the housing exterior, the first viscoelastic layer deflects in shear as the first mass element moves relative to the housing to attenuate the vibrations transmitted through the housing by conversion of vibrational energy to heat.

A shock-absorbing or vibration-absorbing assembly includes a metal base and an elastic shock-absorbing or vibration-absorbing material secured to the metal base. A top surface of the metal base has at least one orifice extending from the top surface to at least one hollow chamber beneath the top surface. The hollow chamber occupies a planar area of the metal base parallel to the top surface that is larger than a planar area of the metal base that is occupied by the orifice at the top surface. The elastic material is secured to the metal base by the elastic material filling the orifice and the hollow chamber of the metal base and the elastic material filling a region above the top surface of the metal base that has a cross-sectional area parallel to the top surface of the metal base that is larger than the planar area of the metal base that is occupied by the orifice at the top surface of the metal base. The elastic material is secured to the metal base by placing the metal base against a mold having a hollow space to be filled with the elastic material. The elastic material is injected into the hollow chamber and orifice of the metal base and into the hollow space of the mold. The mold is removed from the metal base, so that the elastic material is secured to the metal base by the elastic material filling the orifice and the hollow chamber of the metal base and the elastic material filling a region above the top surface of the metal base that corresponds to the hollow space of the mold.

The buffer stopper has a base and an elastic body. The base has a columnar shape having a through hole in a center thereof and having recesses at both ends (virtual surfaces including an end surface of a straight part) thereof, and is formed of a material such as a metal or resin, which is harder than a rubber-like elastic material used as a material for the elastic body. The elastic body is an integrally-molded product made of a rubber-like elastic material. The elastic body includes a pair of end elastic bodies fitted into the recesses of the base and protruding from both ends of the base and connects the pair of end elastic bodies by a central elastic body fitted into the through hole.

A shock-absorbing or vibration-absorbing assembly includes a metal base and an elastic shock-absorbing or vibration-absorbing material secured to the metal base. A top surface of the metal base has at least one orifice extending from the top surface to at least one hollow chamber beneath the top surface. The hollow chamber occupies a planar area of the metal base parallel to the top surface that is larger than a planar area of the metal base that is occupied by the orifice at the top surface. The elastic material is secured to the metal base by the elastic material filling the orifice and the hollow chamber of the metal base and the elastic material filling a region above the top surface of the metal base that has a cross-sectional area parallel to the top surface of the metal base that is larger than the planar area of the metal base that is occupied by the orifice at the top surface of the metal base. The elastic material is secured to the metal base by placing the metal base against a mold having a hollow space to be filled with the elastic material. The elastic material is injected into the hollow chamber and orifice of the metal base and into the hollow space of the mold. The mold is removed from the metal base, so that the elastic material is secured to the metal base by the elastic material filling the orifice and the hollow chamber of the metal base and the elastic material filling a region above the top surface of the metal base that corresponds to the hollow space of the mold.

A mount assembly includes a mount, a vibration mitigation element and a retention feature. The vibration mitigation element is within a portion of the mount. The retention feature is configured to cover an end of the vibration mitigation element, wherein the retention feature is tunable to provide a selected precompression of the vibration mitigation element and a selected rate for the vibration mitigation element.