Fluid-cooled rotary piston for Wankel-type mechanism

Details Fluid-cooled rotary piston for Wankel-type mechanism Fluid-cooled rotary piston for Wankel-type mechanism

1977-02-17

1978-05-23

Vrablik, John J.

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

Non-working fluid passage in inner working or reacting member

F01C 102, F01C 2106, F01C 2108

Patent

active

040908232

ABSTRACT:
The fluid-cooled rotary piston for a Wankel-type mechanism has a plurality of intersecting flank surfaces to form a multi-sided profile and a hub portion by which it is supported for rotation on a mainshaft. The rotary piston also has a closed-loop passageway for each flank surface extending in close spaced relation to the side faces of the rotor and the intersection of the flank surfaces. An inlet passage is provided for each closed-loop passageway to conduct to the latter, as the rotary piston rotates, pressurized cooling fluid from a source thereof. An outlet passage is provided for each closed-loop passageway to conduct heated cooling fluid from the latter to an area adjacent the hub portion. The outlet passage may be provided with a restricted flow area to insure that the associated closed-loop passageway is maintained full of cooling fluid.

REFERENCES:
patent: 3042009 (1962-07-01), Froede
patent: 3102682 (1963-09-01), Paschke
patent: 3204614 (1965-09-01), Huber
patent: 3266468 (1966-08-01), Peras
patent: 3302624 (1967-02-01), Tatsutomi
patent: 3877849 (1975-04-01), Wieland
patent: 4025245 (1977-05-01), Goloff

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