Vibration damper for power unit

Details Vibration damper for power unit Vibration damper for power unit

1990-12-03

1992-04-14

Butler, Douglas C.

Brakes

Internal-resistance motion retarder

Having a thrust member with a variable volume chamber

180300, 248562, 248567, 248636, 248638, 2671401, 1883225, F16F 914, F16F 912, B60G 1308, F16M 1300

Patent

active

051039435

ABSTRACT:
A vibration damper for damping roll vibration of a power unit mounted on a vehicle body. The vibration damper is composed of a disc plate fixedly connected to the power unit in a manner that the axis of the disc plate is generally parallel with a roll axis of the power unit. The disc plate is sealingly disposed in a chamber formed in a generally circular casing which is coaxial with the disc plate. A viscous fluid is filled in a space defined between the disc plate and inner surface of the casing. The casing is formed of a plastic which has a higher linear expansion coefficient than a metal forming the disc plate, thereby allowing the space filled with the viscous fluid to expand along with thermal expansion of the viscous fluid.

REFERENCES:
patent: 4503952 (1985-03-01), Hesse
patent: 4768630 (1988-09-01), Aubry et al.
patent: 4790521 (1988-12-01), Ide et al.
patent: 4991816 (1991-02-01), Ide et al.
patent: 5037058 (1991-08-01), Kojima et al.

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