The term rotary piston engine can have several meanings:
- Rotary engine, the piston engine that rotates in operation, as used on World War I fighter aircraft
- Pistonless rotary engine, the engines which use rotors or rotary pistons instead of conventional reciprocating pistons
- See also
- Rotary engine (disambiguation)
Famous quotes containing the word engine:
“There is a small steam engine in his brain which not only sets the cerebral mass in motion, but keeps the owner in hot water.”
—Unknown. New York Weekly Mirror (July 5, 1845)