Rotary type hydraulic damper

Details Rotary type hydraulic damper Rotary type hydraulic damper

1987-12-03

1989-12-12

Halvosa, George E. A.

Brakes

Internal-resistance motion retarder

Having a thrust member with a variable volume chamber

16 58, 60369, 180219, 280284, F16F 914

Patent

active

048861499

ABSTRACT:
A rotary type hydraulic damper for motorcycle suspension application is disclosed in which a shaft and a housing each containing oppositely extending vanes are arranged for relative rotational movement. The vanes cooperate to define alternately spaced expansion and compression chambers between which hydraulic fluid is passed in response to relative movement between the shaft and the housing. According to one aspect of the invention, a manifold arrangement includes the interconnection of the expansion chambers at one end of the housing and that of the compression chambers at the other end thereof, and a throttling device restricts the flow of fluid between the respective chambers to provide a damping force generator. According to another aspect of the invention the damper shaft provides structural support for the motorcycle drive sprocket, whereby strength requirements for the sprocket bearing case are reduced.

REFERENCES:
patent: 2038596 (1936-04-01), Peo
patent: 2043488 (1936-06-01), Peo
patent: 2419651 (1947-04-01), Magrum
patent: 4716996 (1988-01-01), Hummel

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