1974-02-01

Rotary Combustion Engine Trochoid Coatings and Seals 741043

This paper presents a review of Curtiss-Wright's efforts to identify or develop successful apex seal/trochoid sealing systems for the rotary engine. Included are descriptions of the various wear test rigs utilized to evaluate apex seal/trochoid coating combinations. Laboratory seal-coating screening procedures are detailed along with engine test results. Seal-coating design considerations including factors affecting seal loading and wear are described. Data are presented on a newly developed plasma spray coating containing titanium carbide.

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