Pumps – With condition responsive pumped fluid control – Pressure responsive relief or bypass valve
Patent
1997-01-21
1998-06-02
Thorpe, Timothy
Pumps
With condition responsive pumped fluid control
Pressure responsive relief or bypass valve
418 15, F04B 4900, F04C 1502
Patent
active
057590133
ABSTRACT:
An oil pump apparatus incorporates, an oil pump housing, and a rotor located in the oil pump housing, wherein the rotor forms a first set of pockets having a capacity increasing toward the rotating direction of the rotor and a second set of pockets having a capacity decreasing toward the rotating direction of the rotor. The apparatus further includes a plurality of suction ports connected with the first set of pockets, each of the suction ports being isolated from other adjacent suction ports, a discharge port connected with the second set of the pockets, and a control valve.
REFERENCES:
patent: 2509321 (1950-05-01), Topanelian, Jr.
patent: 3628893 (1971-12-01), Carpigiani
patent: 4631009 (1986-12-01), Cygnor et al.
patent: 4658583 (1987-04-01), Shropshire
patent: 5660531 (1997-08-01), Merkle et al.
Aoki Kongo
Kimura Ichiro
Miura Yoshinori
Miyazaki Hisashi
Aisin Seiki Kabushiki Kaisha
Korytnyk Peter G.
Thorpe Timothy
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