Hydraulically controlled engine mounting device of an automotive

Details Hydraulically controlled engine mounting device of an automotive Hydraulically controlled engine mounting device of an automotive

1994-11-10

1996-08-27

Chotkowski, Karen J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267218, 248550, 248562, 248636, F16M 500, F16F 1500

Patent

active

055492843

ABSTRACT:
A hydraulically controlled engine mounting device for mounting an engine to a body of a vehicle, includes a plurality of hydraulic pressure chambers controlled by a single solenoid valve for effectively reducing vibrations at most frequency vibrations. More particularly, the invention includes first and second hydraulic pressure rooms divided by a partition and communicating with each other by a passageway to dampen vibration of an engine with a fluid friction. A third hydraulic pressure room is formed near the first hydraulic pressure room, the third hydraulic pressure room communicating with the first hydraulic pressure room by a passage-aperture having a solenoid valve. A hydraulic pump is formed in a predetermined position within the third hydraulic pressure room, the solenoid valve and hydraulic pump being operated by a controller judging a vibration frequency transmitted to a vehicle body to charge an internal hydraulic pressure of the first hydraulic pressure room and dampen the vibration transmitted to the body.

REFERENCES:
patent: 4648576 (1987-03-01), Matsui
patent: 4664360 (1987-05-01), Sciortino
patent: 4793599 (1988-12-01), Ishioka
patent: 4828234 (1989-05-01), Hoying et al.
patent: 4901986 (1990-02-01), Smith
patent: 4997169 (1991-03-01), Nakamura et al.
patent: 5215294 (1993-06-01), Muramatsu et al.

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