Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Non-working fluid directed to groove
Patent
1977-05-10
1979-03-13
Vrablik, John J.
Rotary expansible chamber devices
Grooved abutting cylinder-rotating member end surfaces
Non-working fluid directed to groove
418 81, 418 82, 418 93, 418 94, 418100, F01C 2104, F04C 2902
Patent
active
041440021
ABSTRACT:
A rotor is operatively provided in a bore of a cylinder which is formed with an inlet and an outlet. The cylinder is enclosed by a housing with an annular chamber being defined between the cylinder and the housing. The housing has an inlet which is connected to the inlet of the cylinder. The outlet of the cylinder is provided at an upper portion thereof. An oil sump is defined by a lower portion of the annular chamber of the housing. A partition divides the interior of the housing into the annular chamber within which the cylinder is disposed and an outlet chamber which communicates with an outlet of the housing. The lower portion of the partition is cut away to communicate the annular chamber with the outlet chamber. An oil passageway leads from the oil sump through the rotor to the inlet of the housing in such a manner that oil flows through the oil passageway to lubricate the internal parts of the rotor and is entrained in operating fluid at the inlet of the housing, passing through the cylinder to lubricate areas of sliding contact between the rotor and the inner periphery of the cylinder. The operating fluid and oil expand and change direction in the annular chamber so that the operating fluid passes to the outlet chamber but the entrained oil is precipitated and returns to the oil sump.
REFERENCES:
patent: 3385513 (1968-05-01), Kilgore
patent: 3385514 (1968-05-01), Kilgore et al.
Ishizuka Yutaka
Nakamura Teruo
Shibuya Tsunenori
Alexander David G.
Diesel Kiki Company, Ltd.
Vrablik John J.
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