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 machine unmakes the man. Now that the machine is perfect, the engineer is nobody. Every new step in improving the engine restricts one more act of the engineer,—unteaches him.”
—Ralph Waldo Emerson (1803–1882)