Rotary expansible chamber devices – With mechanical sealing – Seal on working member periphery separates inlet and outlet...
Patent
1976-02-19
1977-05-24
Croyll, Carlton R.
Rotary expansible chamber devices
With mechanical sealing
Seal on working member periphery separates inlet and outlet...
F04C 2700
Patent
active
040252477
ABSTRACT:
A corner seal member for use in a rotary internal combustion engine is constructed with an apex seal groove and an elongated cavity. The elongated cavity forms a thin wall having a substantially semicircular cross-section in the opposite side of the apex seal groove. The gas pressure delivered into the elongated cavity is advantageously used for urging the corner seal towards the inner surface of the corner seal groove, thereby preventing the gas pressure from leaking into an adjacent working chamber.
REFERENCES:
patent: 3180560 (1965-04-01), Paschke
patent: 3674384 (1972-07-01), Larrinaga et al.
patent: 3830600 (1974-08-01), Shimosi et al.
patent: 3961871 (1976-06-01), Kurio
Ebihara Tadashi
Kurio Noriyuki
Croyll Carlton R.
Nippon Piston Ring Co. Ltd.
Smith Leonard
Toyo Kogyo Co. Ltd.
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