Rotary expansible chamber devices – With mechanical sealing – Seal element between working member and cylinder
Patent
1974-04-17
1976-03-23
Vrablik, John J.
Rotary expansible chamber devices
With mechanical sealing
Seal element between working member and cylinder
418178, 277 96, F01C 1908, F04C 2700, F01C 2100
Patent
active
039457761
ABSTRACT:
A structure for preventing oil leakage which occurs between a side wall of a rotor and the inner surface of a side housing in a rotary engine, comprising at least one oil groove formed in the side wall of the rotor in a region located inside of a conventional annular oil seal means. The oil groove formed in the side wall of the rotor extends helically around the center of the rotor.
REFERENCES:
patent: 3456624 (1969-07-01), Okamoto
patent: 3693608 (1972-09-01), Neishi
patent: 3697202 (1972-10-01), Reinhart
patent: 3718412 (1973-02-01), McCormick
patent: 3767212 (1973-10-01), Ludwig
patent: 3804424 (1974-04-01), Gardner
Toyota Jidosha Kogyo Kabushiki Kaisha
Vrablik John J.
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