| 摘要 |
A two-chamber step bearing with hydraulic damping, especially for mounting engines in motor vehicles, has at least one fluid-filled working chamber and at least one compensating chamber connected thereto by an overflow channel. An additional, blockable spring element (10) is arranged in series after the first hydraulic damping spring element comprising the working chamber (1), the compensating chamber (2) and the overflow channel (11), wherein the spring element (10) is arranged in a separate pretensioning chamber (8), which is connected to the working chamber (1) and the compensating chamber (2) by at least two switching elements (16, 17) which can be controlled independently from one another, and wherein the pretensioning chamber (8) can be filled up with hydraulic fluid for blocking the additional spring element (10) by the vibrations introduced into the two-chamber step bearing from the engine.
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