Fluid handling – Systems – Supply and exhaust
Patent
1985-07-02
1987-03-17
Michalsky, Gerald A.
Fluid handling
Systems
Supply and exhaust
91446, 137501, 13759613, F15B 1302
Patent
active
046499512
ABSTRACT:
A proportional hydraulic distributor with a hollow, cylindrical compensating slide, a seat at one end of the compensating slide, a reciprocable piston, an end of which is urged against the seat by a spring, a pressure assistance chamber surrounding the seat, and a choke connecting the entry pressure of the hydraulic distributor to the pressure assistance chamber. The balance of forces on the reciprocable piston and on the cylindrical compensating slide is equal to and oppositely directed with respect to the hydrodynamic drag force that develops during transitional phases of the operation of the hydraulic distributor.
REFERENCES:
patent: 3628424 (1971-12-01), Fruehauf et al.
patent: 3631890 (1972-01-01), McMillen
patent: 3777773 (1973-12-01), Tolbert
patent: 3878864 (1975-04-01), Schurger
patent: 3881512 (1975-05-01), Wilke
patent: 4343152 (1982-08-01), Habiger
patent: 4515181 (1985-05-01), Dezelan
patent: 4548239 (1985-10-01), Eskildsen
Michalsky Gerald A.
VanOphem Remy J.
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