Improvements to hydraulic antivibratory supports

Details Improvements to hydraulic antivibratory supports Improvements to hydraulic antivibratory supports

1988-01-25

1989-09-26

Halvosa, George E. A.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

180312, 188299, 248562, 248636, 251304, F16F 934

Patent

active

048694789

ABSTRACT:
In a hydraulic antivibratory support for insertion between two rigid elements (1 and 3), and comprising a work chamber (A) and a compensation chamber (B) separated by a dividing wall (6) and joined together by a restricted passage, this restricted passage, defined at both ends by two fixed orifices (31, 32) opening respectively into the two chambers (A and B) is defined over at least a portion of its lateral periphery by a flat or cylindrical face (25) of a rigid rotary valve (26) housed jointingly between the two orifices and connected angularly to the rotor of a small electric motor (19).

REFERENCES:
patent: 192622 (1877-07-01), Guild et al.
patent: 2421585 (1947-06-01), Thiry
patent: 4313529 (1982-02-01), Kato et al.
patent: 4554948 (1985-11-01), Bergmann
patent: 4583503 (1986-04-01), Kumagai et al.
patent: 4641808 (1987-02-01), Flower
patent: 4645042 (1987-02-01), Inoue et al.
patent: 4681306 (1987-07-01), Hofmann et al.
patent: 4700933 (1987-10-01), Chikamori et al.
patent: 4709779 (1987-12-01), Takehara
patent: 4724936 (1988-02-01), Koga et al.

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