Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Patent
1996-02-27
1998-08-04
Oberleitner, Robert J.
Brakes
Internal-resistance motion retarder
Having a thrust member with a variable volume chamber
188315, F16F 900
Patent
active
057880310
ABSTRACT:
A control cylinder unit for varying a spring constant of a vehicular stabilizer includes a cylindrical fluid chamber divided into upper and lower liquid chambers by a slidably inserted piston. The upper and lower liquid chambers are communicated with each other through a controlled rotary valve installed in a piston rod connected to the piston. A reservoir chamber is formed around the liquid chamber and is communicated with the upper and lower liquid chambers through first and second check valves installed at upper and lower ends of the liquid chamber. The first and second check valves function to allow fluid from the reservoir chamber into the upper and lower liquid chambers. Further, a hole for communicating the liquid chamber and the reservoir chamber is formed at a center portion of a cylindrical wall of the fluid chamber.
REFERENCES:
patent: 2946582 (1960-07-01), Martin
patent: 3874486 (1975-04-01), Katsumori et al.
patent: 4819772 (1989-04-01), Rubel
patent: 4924975 (1990-05-01), Woerner et al.
patent: 5150916 (1992-09-01), Petroffs et al.
patent: 5293968 (1994-03-01), Schuelke et al.
Ballato Josie
Oberleitner Robert J.
Unisia Jecs Corporation
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