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:
“The will is never free—it is always attached to an object, a purpose. It is simply the engine in the car—it can’t steer.”
—Joyce Cary (1888–1957)