| 摘要 |
<p>An engine mount for use in a vehicle comprises a pin (20) for connection to the engine and a support plate (22) for connection to the chassis or body of the vehicle. The support plate (22) defines an aperture with a turned-down edge (24). A stiff but resilient cone-shaped hollow support (30), made of rubber preferably, supports the engine from the support plate (22) and flexes in response to engine vibrations. The rubber support (30) defines a chamber (32) which is closed off by a base plate (34) but is open to a resonator (38), the chamber (32) and the resonator (38) being filled with hydraulic fluid. The resonator (38) comprises a longitudinally extending passageway (39) having a plurality of flexibly walled volumes (40, 42, 44, 46, 48) in the form of bellows turns which are positioned at respectively different predetermined positions along the length of the passageway (39) for providing the passageway (39) with correspondingly different resonant frequencies for the hydraulic fluid which oscillates along the passageway in response to engine vibrations. In this way, the resonator (38) causes damping at corresponding frequencies.</p> |
