Fluid handling – Systems – Supply and exhaust
Patent
1977-02-28
1978-10-31
Michalsky, Gerald A.
Fluid handling
Systems
Supply and exhaust
60445, 91421, 91446, 1375961, F15B 1302
Patent
active
041228650
ABSTRACT:
A direction flow control valve for control of positive and negative loads equipped with a load responsive positive load control which automatically regulates valve inlet pressure to maintain a relatively constant pressure differential between inlet pressure and load pressure. The load responsive control of the direction flow control valve blocks the pump flow to the motor while controlling negative load, providing the motor inlet with fluid from the motor exhaust.
REFERENCES:
patent: 3807447 (1974-04-01), Masuda
patent: 3882896 (1975-05-01), Budzich
patent: 3984979 (1976-10-01), Budzich
patent: 4028889 (1977-06-01), Budzich
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