Rotary piston type internal combustion engines

Details Rotary piston type internal combustion engines Rotary piston type internal combustion engines

1976-10-15

1977-11-01

Croyle, Carlton R.

Rotary expansible chamber devices

With wear surface treatment or integrally plated wear layer

F01C 2100

Patent

active

040563391

ABSTRACT:
Rotary piston engine having a rotor housing applied with a pin-point type porous chromium plating having porosity of 10 to 60 percent and a hardness of 930 to 1200 in Vicker's scale. The engine also has a rotor having apex seals each constituted by cast iron based material. Each apex seal has a sliding surface including 50 to 70 volume percent of carbides and a hardness of 700 to 900 in Vicker's scale.

REFERENCES:
patent: 2314604 (1943-03-01), Van der Horst
patent: 2412698 (1946-12-01), Van der Horst
patent: 2800443 (1957-07-01), Stareck et al.
patent: 2809873 (1957-10-01), Cavileer
patent: 2830015 (1958-04-01), Raymond
patent: 2947674 (1960-08-01), Andrisek
patent: 3749072 (1973-07-01), Schweiker
patent: 3888746 (1975-06-01), Uy et al.

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