| 摘要 |
1. A hydroelastic support, comprising two frames (1, 2; 101, 102) connected by a block of elastomeric material (3; 103), a rigid partition (8: 105, 108) carried by one of the frames (2; 102), a working chamber (A) partly defined by the block of elastomeric material and by the said partition, and two concentric expansion chambers (B, C), defined at least in part by the rigid partition and by a single diaphragm (18; 113), these expansion chambers communicating with the working chamber through two pipes (16, 17; 109, 110) contrived in the rigid partition and having different characteristics of length and/or cross section, characterised in that the support comprises a cover (7; 104) which is integral with the frame (2; 102) carrying the partition (8; 105, 108) and which defines an annular flange (23, 24; 114) applying an intermediate part of the diaphragm (18; 113) against the partition (8; 105, 108) so as to form a seal.
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