Rotor cooling means for rotary piston engines

Details Rotor cooling means for rotary piston engines Rotor cooling means for rotary piston engines

1978-06-27

1980-08-19

Smith, Leonard E.

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

With condition responsive control of non-working fluid

418 87, 418 94, F01C 2106

Patent

active

042182000

ABSTRACT:
Rotary piston engine includes a substantially triangular rotor formed with flank cooling oil passages located behind flanks of the rotor. The rotor further has coolant oil passages behind the oil seals at the opposite side surfaces thereof. The flank cooling oil passages are supplied with cooling oil only when the rotor temperature or engine speed is beyond a predetermined value, while the oil seal cooling passages are always supplied with cooling oil so that the rotor flanks can be maintained at a high temperature while preventing the oil seals from being excessively heated.

REFERENCES:
patent: 3782869 (1974-01-01), Steinwart et al.
patent: 3876345 (1975-04-01), Froede et al.
patent: 4011032 (1977-03-01), Steinwart et al.
patent: 4174197 (1979-11-01), Leitermann

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