Hydraulically damped bearing for a piston engine having a relief

Details Hydraulically damped bearing for a piston engine having a relief Hydraulically damped bearing for a piston engine having a relief

1992-01-07

1994-10-18

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

F16M 500

Patent

active

053561228

ABSTRACT:
A hydraulically damped bearing for a piston engine has a liquid-filled working chamber that communicates with the compensating chamber by means of a duct-type conduit. The effective length of the conduit can be shortened by arbitrarily actuating a relief valve, which is arranged between the outlets of the conduit that communicate with the working and compensating chambers. The respective distances between the valve and the outlets are dimensioned so that the liquid volume contained in the linear section defining the effective length L of the conduit vibrates essentially in phase with the bearing member when vibrations of a frequency corresponding to the idling speed are introduced.

REFERENCES:
patent: 4583503 (1986-04-01), Kumagai et al.
patent: 4699099 (1987-10-01), Arai et al.
patent: 4709779 (1987-12-01), Takehara
patent: 4867263 (1989-09-01), Sugino et al.
patent: 4872652 (1989-10-01), Rohner et al.
Theory Of The Hydro-Bearing, Spurk/Andra Automobile Industry, May 1985, p. 554.

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