Fluid-filled elastic mount having orifice passage control rotary

Details Fluid-filled elastic mount having orifice passage control rotary Fluid-filled elastic mount having orifice passage control rotary

1996-01-02

1997-04-15

Butler, Douglas C.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267219, F16M 700, F16F 1300

Patent

active

056201680

ABSTRACT:
A fluid-filled elastic mount wherein a fluid-tight space defined by two mounting members, an elastic body and a flexible diaphragm is divided by a partition member into pressure-receiving and equilibrium chambers communicating with each other through at least one orifice passage, and through a rotary valve which is accommodated in a valve hole in the partition member such that the rotary valve is rotatable in sliding contact with a sliding surface of the valve hole. The valve has a cutout communicating with the equilibrium chamber, and a valve portion adjacent to the valve portion, so that the orifice passage is selectively closed by the valve member and opened through the cutout in communication with the equilibrium chamber. The elastic mount includes a mechanism for converting a reciprocating movement into a rotary motion of the valve. The mechanism includes a drive rod which is connected to the valve such that the connecting point is offset from the rotation axis of the vale in the radial direction. The other end of the drive rod is located outside the elastic mount for receiving the reciprocating movement.

REFERENCES:
patent: 2856179 (1958-10-01), Hogan
patent: 4648576 (1987-03-01), Matsui
patent: 4660812 (1987-04-01), Dan et al.
patent: 4700933 (1987-10-01), Chikamori
patent: 4789143 (1988-12-01), Smith et al.
patent: 4793600 (1988-12-01), Kojima
patent: 4802648 (1989-02-01), Decker et al.
patent: 4925162 (1990-05-01), Kojima
patent: 5209462 (1993-05-01), LeFol et al.
patent: 5297769 (1994-03-01), LeFol et al.
patent: 5443574 (1995-08-01), Ohtake et al.

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