Pumps – With condition responsive pumped fluid control – Pressure responsive relief or bypass valve
Patent
1998-07-23
2000-07-11
Kim, Ted
Pumps
With condition responsive pumped fluid control
Pressure responsive relief or bypass valve
417302, 417304, F02C 1504, F02C 210
Patent
active
060863374
ABSTRACT:
An oil pump effects a pumping action to deliver oil from an inlet port to a first outlet port and also to a second outlet port. An oil supply passage is connected to the second outlet port. A regulator valve has a bore, a spool disposed in the bore, a pressure chamber, and a pressure admission port connected to the oil supply passage and communicating with the pressure chamber. A branch passage connected to the oil supply passage opens to the bore. The regulator valve also has relief port connected to the inlet port and opening to the bore, and a transfer port connected to the first outlet port. The spool disposed in the bore is moveable responsive to pressure within the pressure chamber between a first position in which the transfer port is connected to the branch passage and a second position in which the transfer port is connected to the relief port.
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Ohnishi Hideaki
Watanabe Yasushi
Kim Ted
Unisia Jecs Corporation
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