Internal-combustion engines – Rotary – With ignition means
Patent
1974-11-12
1978-07-11
Cohen, Irwin C.
Internal-combustion engines
Rotary
With ignition means
418178, F02B 5300
Patent
active
040994902
ABSTRACT:
A method for manufacturing a housing casing for a rotary piston internal combustion engine, especially of trochoidal construction, as well as the housing casing made according to this method, whereby the housing casing consists of light metal whose internal running surface for the piston consists of a coating of hard material; the method thereby involves leaving during the machining of the inner wall of the housing casing a material island of such light metal about the discharge opening of the already bored or still to be bored spark-plug-firing channel, whose height corresponds at least to the thickness of the coating to be subsequently provided along the inner contour of the housing casing in the finish-machined condition; as a result thereof the area of the discharge opening of the firing channel is constituted exclusively of such light metal.
REFERENCES:
patent: 2436043 (1948-02-01), Herreshoff et al.
patent: 3506383 (1970-04-01), Ewalt
patent: 3512907 (1970-05-01), Belzner
patent: 3680990 (1972-08-01), Pettibone et al.
patent: 3705818 (1972-12-01), Grosseau
patent: 3851627 (1974-12-01), Terazawa
patent: 3908610 (1975-09-01), Stahle
Cohen Irwin C.
Daimler-Benz Aktiengesellschaft
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