A partition member includes an orifice passage through which the main liquid chamber and the auxiliary liquid chamber communicate with each other, a plurality of first communication holes through which the main liquid chamber and the accommodation chamber communicate with each other, and a second communication hole through which the auxiliary liquid chamber and the accommodation chamber communicate with each other, in the partition member, a tubular member which protrudes in an axial direction toward an elastic body is disposed on a first wall surface in which the first communication hole opens and which forms a part of an inner surface of the main liquid chamber, the plurality of first communication holes open in both an inner portion located on an inner side than the tubular member and an outer portion located on an outer side than the tubular member of the first wall surface.

A mounting system for a powertrain of a vehicle may secure a sufficient installation space inside of vehicle body frames and greatly reduce a height difference between the center of gravity of a motor-reducer assembly and insulators, thus greatly improving NVH performance of the vehicle. The mounding system includes: mounting units to mount the powertrain of the vehicle to the vehicle body frames. Each mounting unit includes: a vehicle body-side bracket coupled to the vehicle body frame, a powertrain-side bracket coupled to the powertrain, and an insulator installed between the vehicle body-side bracket and the powertrain-side bracket. The vehicle body-side bracket as coupled to an outer surface of the vehicle body frame extends downwards from the vehicle body frame, and thus, the vehicle body-side bracket and the insulator are located in an outer space of the vehicle body frame.

An outer attachment member (111) includes a first end member (117), a second end member (118), and an intermediate member (116), in which the first end member (117) and the second end member (118) are respectively fitted into both end portions of the intermediate member (116) in the axial direction, a coupled portion (135) provided in any one of the vibration generating part and the vibration receiving part is disposed on one end surface of both end surfaces of the first mounting projecting portion (124) in the axial direction provided in the intermediate member (116), and a second mounting projecting portion (125) is disposed on the other end surface thereof, the first mounting projecting portion (124) and the second mounting projecting portion (125) are separately provided with insertion holes (111a) through which fixing bolts (136) for integrally fixing the first mounting projecting portion (124) and the second mounting projecting portion (125) and for coupling the first mounting projecting portion (124) to the coupled portion (135) are inserted, a first crimping portion (128) and a second crimping portion (129) for separately crimping the first end member (117) and the second end member (118) is formed at both end portions of the intermediate member (116) in the axial direction, and the circumferential length of the first crimping portion (128) is larger than the circumferential length of the second crimping portion (129).

A hydraulic mount assembly includes a first track insert (or shell), a second track insert (or shell), and a separating diaphragm (e.g., rubber membrane) as part of a body (e.g., a rubber body) disposed between the first track insert and the second track insert. In embodiments the separating diaphragm forms a seal between a first chamber disposed between a portion of the first track insert and the separating diaphragm, and forms a seal between a second chamber disposed between a portion of the second track insert and the separating diaphragm.

A vehicle front portion structure includes a motor, a stabilizer having an extending portion disposed at a vehicle front side of the motor and that extends further in a vehicle width direction than a length of the motor, and having an arm portion that extends toward a vehicle rear side from each end of the extending portion, a plurality of motor fixing portions, a part of the motor fixing portions being disposed at respective outer sides in the vehicle width direction relative to the motor and at a position between the motor and the extending portion, and a plurality of stabilizer support portions that support respective end parts of the extending portion, the stabilizer support portions being disposed further toward a front side than the motor fixing portions, and at least a part of the stabilizer support portions being aligned with the motor fixing portions in the vehicle front-rear direction.

A drive assembly for a motor vehicle includes a drive, a transmission that can be driven by the drive, a drive housing, a transmission housing, and a fastening device. The drive is arranged in the drive housing, and the transmission is arranged in the transmission housing. The drive housing or the transmission housing can be fastened on a carrier by way of the fastening device. The fastening device includes a plurality of vibration dampers and sleeve elements. The sleeve elements surround the vibration dampers.

A vibration-damping device (10) of the present invention includes a first attachment member (11), a second attachment member (12), an elastic body (13), and a partition member (16). In the partition member, a restriction passage (24) through which the first liquid chamber (14) and the second liquid chamber (15) communicate with each other is formed. The restriction passage includes a first communicating portion (26) which opens to the first liquid chamber, a second communicating portion (27) which opens to the second liquid chamber, and a main body flow passage (25) through which the first communicating portion and the second communicating portion communicate with each other. At least one of the first communicating portion and the second communicating portion includes a plurality of fine holes (26a) which are disposed in a flow passage direction of the main body flow passage. In plurality of fine holes, a flow passage length of a fine hole located apart from the other of the first communicating portion and the second communicating portion in the flow passage direction becomes longer.

An engine system comprising: a housing having an accommodating cavity; a crankshaft part, a speed change mechanism and a transmission shaft are provided in the accommodating cavity; and a first motor and a second motor are located outside the accommodating cavity and provided on the housing. The crankshaft part is provided in the accommodating cavity and outputs first power. The first motor comprises a first motor shaft which is connected to an output end of the crankshaft part to convert the first power into electric energy. The second motor comprises a second motor shaft and is configured to output second power according to electric energy. The speed change mechanism is drivingly connected to the second motor shaft without connecting the output end of the crankshaft part. The transmission shaft is connected to an output end of the speed change mechanism. Also disclosed is an all-terrain vehicle.

Anti-vibration mount comprising a first frame, a second frame, an elastomeric main body connecting the first frame and the second frame, the elastomeric main body allowing relative displacements of the second frame relative to the first frame in a first direction of vibration and in a second direction of vibration perpendicular to the first direction of vibration, the elastomeric main body also being suitable for mounting a weight in the first direction of vibration. An inertia body is connected to the first frame by an elastic suspension interposed between the inertia body and the first frame along the second direction of vibration. An elastomeric lateral abutment body is interposed between the first frame and the inertia body to limit the relative displacements of the second frame with respect to the first frame in the second direction of vibration. The inertia body has a natural frequency lower than 800 Hz.

The present invention includes a first attachment member (11, 111), a second attachment member (12, 112), an elastic body (13, 113), a partition member (16, 116), and a movable member (41, 141). An orifice passage (24, 124), a plurality of first communication holes (42a, 142a), and a second communication hole (42b, 142b) are formed in the partition member (41, 141). A tubular member (21, 121) is disposed on a first wall surface (16b, 116b) in the partition member (16, 116). The plurality of first communication holes (42a, 142a) are open to both an inner portion (16f, 116f) and an outer portion (16g, 116g) on the first wall surface (16b, 116b), and one of the partition member (16) and the tubular member (121) forms an elasticity adjusting unit (Z).