Seal means for rotary piston engine

Details Seal means for rotary piston engine Seal means for rotary piston engine

1974-12-31

1976-06-22

Vrablik, John J.

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

418149, 123 801, 277233, 277235R, F01C 1900, F01C 2106, F02B 5300, F02F 1100

Patent

active

039648435

ABSTRACT:
A seal means which is mounted in a groove means provided between the working chamber and coolant flow passages of a rotary piston engine and is constituted by a main member which is compressively flexed between the groove means and the opposite mating surface of a housing, a first backup element made of a flexible material and a second backup element made of a metal which are provided on the outer side of the main member, and a heat-resistant element which is provided on the inner side of the main member, the first and second backup element preventing movement of main member portions into any gap formed between housing mating surfaces at an interface, whereby the main member is protected from wear and the service life of the seal means is increased.

REFERENCES:
patent: 3330568 (1967-07-01), Wetzel
patent: 3575538 (1971-04-01), Berkowitz et al.
patent: 3627337 (1971-12-01), Pippert
patent: 3695790 (1972-10-01), Jones
patent: 3844694 (1974-10-01), Lamm

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