| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid-filled vibration isolator that improves the reliability of liquid sealing in the valve axial part of a rotary valve. <P>SOLUTION: The rotary valve 42, which changes over the opening and closing of an orifice passage 40, has a valve axial part 62 of small diameter protruding from a valve body 60. A mounting hole 58 of the rotary valve 42 provided on the valve body 26 has a valve holding chamber 64, which holds the valve body 60 freely rotatably, and a seal chamber 72, in which an annular seal member 76 is provided. The seal member 76 is made up of: an outside circumferential wall part 78, which is fitted inside the seal chamber 72; a vertical wall part 80, which is extended inward K1 in the radial direction; a seal lip 82 provided on its inside circumferential end; and an annular elastomer 84, which urges the seal lip in the diameter contracting direction. By bringing the end surface 60A in the axial direction of the valve body contact the end part 78B in the axial direction of the outside circumferential wall part, the position in the axial direction S of the rotary valve 42 is determined. <P>COPYRIGHT: (C)2009,JPO&INPIT |
