air engine

noun

1. an engine that uses the expansion of heated air to drive a piston
2. a small engine that uses compressed air to drive a piston

Example Sentences

He said he believed his liquid air engine would prevail against other storage technologies because it did not rely on potentially scarce materials for batteries.

From BBC

Herring made for this a compressed air engine and claimed that with this he accomplished a flight of seventy-three feet.

From Project Gutenberg

Samuel Brown, in patents dated 1823 and 1826, proposed to fill a closed chamber with a gas flame, and so expel the air; then he condensed the flame by injecting water, and operated an air engine by exhausting into the partial vacuum so obtained.

From Project Gutenberg

The sister invention of the gas engine is the air engine.

From Project Gutenberg

It is recorded that Amontons of France, in 1699, had an atmospheric fire wheel or air engine in which a heated column of air was made to drive a wheel.

From Project Gutenberg