Authors:  Berndt, M.  Frehn, F. (Thyssen Edelstahlwerke AG)
Journal Title: Powder Metallurgy International  Volume: 8 Page: Aug. 197 
Published: Aug 01, 1976

Abstract: 
Increasing use of rotary engines is due to their vibration-free operation, simple construction since no valves are necessary, lower weight, less space
requirement than in reciprocal piston engines, and lower costs in mass production. The main components of the dual rotor Wankel engine are the
epitrochoidal motor housing and the triangular rotor. Materials used for sealing elements in rotary engines are reviewed; these structural elements
are intended to seal the individual lobes of a rotary engine against each other. Attention is focused on the apex seal element which serves as a mate to
the silicon carbide/nickel lined epitrochoidal shaped housing (stator). The element consists of the sintered material FERRO-TITANIT, a
hardenable refractory material composed of titanium carbide and a suitable steel base as binder. The capabilities of this apex sealing element in terms
of corrosion and wear resistance are discussed along with pertinent production and quality control. The knowledge acquired and the results obtained
promise further development of suitable sealing materials.

The AirCraft Rotary Engine NewsLetter.              Powered by Linux.
ACRE NL web site.
http://home.earthlink.net/~rotaryeng/            http://www.linux.org