Rotary expansible chamber devices – With plural working fluid inlet or outlet passages
Patent
1983-05-05
1985-03-26
Vrablik, John J.
Rotary expansible chamber devices
With plural working fluid inlet or outlet passages
418 76, 418 77, 418 81, 418 82, 418 93, 418 99, 418268, F04C 1800, F04C 2902
Patent
active
045070652
ABSTRACT:
A sealing chamber is defined between the front head and the front side block, and an oil chamber between the rear side block and a partition member secured to the rear end face of the rear side block, respectively. The drive shaft, on which the rotor is rigidly fitted, is radially supported by a pair of roller bearings provided at the front and rear side blocks. The bearings have end portions remote from the rotor enclosedly disposed in the sealing chamber and the oil chamber. The lubricating oil feeding system includes lubricating oil feeding bores formed in the front and rear side blocks and communicating with a zone under discharge pressure, and clearances between the front and rear side blocks and opposed end faces of the rotor. The clearances have predetermined flow resistance, and communicate, on one hand, with the back pressure chamber formed within the rotor, and on the other hand, with the sealing chamber and the oil chamber by way of the above roller bearings.
REFERENCES:
patent: 2057381 (1936-10-01), Kenney et al.
patent: 3480204 (1969-11-01), Harlin
patent: 4144002 (1979-03-01), Shibuya et al.
Nakamura Teruo
Shibuya Tsunenori
Diesel Kiki Co. Ltd.
Vrablik John J.
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