Fluid handling – Systems – Supply and exhaust
Patent
1982-03-11
1984-03-13
Michalsky, Gerald A.
Fluid handling
Systems
Supply and exhaust
91421, 91446, 13759613, F15B 1304
Patent
active
044361157
ABSTRACT:
A direction flow control valve responsive to a manual control signal for control of positive and negative loads operated by a single pilot valve stage, which automatically maintains a relatively constant pressure differential across valve spool, while controlling positive and negative loads and which permits independent adjustment in maximum flow level through the valve for positive and negative load control.
REFERENCES:
patent: Re29538 (1978-02-01), Budzich
patent: 4327627 (1982-05-01), Budzich
patent: 4333389 (1982-06-01), Budzich
patent: 4362087 (1982-12-01), Budzich
Caterpillar Tractor Company
Michalsky Gerald A.
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