Pneumatically operated fluid filled engine mount for vehicles

Details Pneumatically operated fluid filled engine mount for vehicles Pneumatically operated fluid filled engine mount for vehicles

2006-04-11

2006-04-11

Burch, Melody M. (Department: 3683)

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

C267S140150

Reexamination Certificate

active

07025341

ABSTRACT:
A fluid filled engine mount including: a pressure-receiving chamber and an equilibrium chamber connected via a first orifice passage tuned to excite resonance of fluid flowing therethrough to engine shakes; a partition rubber plate partially defining a pressure receiving chamber and tuned to perform absorption of a fluid pressure fluctuation in the pressure-receiving chamber to booming noises; an oscillating chamber connected to the pressure receiving chamber via a second orifice passage tuned to excite resonance of the fluid flowing therethrough to idling vibrations; an oscillating rubber elastic plate having an expansion spring smaller than that of the partition rubber plate and defining the oscillating chamber; a working air chamber applied with air pressure fluctuation with a frequency corresponding to the idling vibration during idling, and to make the working air chamber atmospheric pressure during running.

REFERENCES:
patent: 5314173 (1994-05-01), Ide et al.
patent: 5839720 (1998-11-01), Kojima
patent: 5911412 (1999-06-01), Durand et al.
patent: 5992833 (1999-11-01), Tanahashi
patent: 6082717 (2000-07-01), Nanno
patent: 6371462 (2002-04-01), Gennesseaux
patent: 587178 (1993-04-01), None
patent: 10-184769 (1998-07-01), None
patent: 2000-213586 (2000-08-01), None

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