Vibration damping assemblies

Details Vibration damping assemblies Vibration damping assemblies

1997-09-22

2000-04-18

Schwartz, Christopher P.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267293, 2671416, F16F 500

Patent

active

060505540

ABSTRACT:
An engine mount assembly comprises a rigid dome-shaped cover secured to the vehicle body or chassis. The cover supports internal rubber elements which in turn support rigid facing jaws. A damping module comprising two bellows chambers and an assembly of two valve elements is inserted in a unit, together with a valve arrangement. A bolt secured to the engine of the vehicle passes through the valve elements and holds the damping module in position and transmits engine vibrations to the damping module. Hydraulic fluid in the chambers is thus forced through a helical conduit which contains a restriction for damping the fluid movement and thus the vibrations. At higher vibration frequencies, valve flaps vibrate causing alternate small compression and expansion of the chambers and thus damping of the vibrations.

REFERENCES:
patent: 4753421 (1988-06-01), Makibayashi et al.
patent: 4836512 (1989-06-01), Lun
patent: 4852864 (1989-08-01), Bitchkus et al.
patent: 5000428 (1991-03-01), Thorn
patent: 5062497 (1991-11-01), Ogata
patent: 5127636 (1992-07-01), Spaltofski
patent: 5205546 (1993-04-01), Schisler et al.
Patent Abstracts of Japan, 010, 372, Dec. 11, 1986 (JP 61 165041 English abstract).

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