Reference Terms
from Wikipedia, the free encyclopedia

Air engine

The air engine is an emission-free piston engine using compressed air.

The engines are similar to steam engines as they use the expansion of externally supplied pressurised gas to perform work against a piston.

Small single cylinder engines are incorporated into small toy flying airplane models.

Note:   The above text is excerpted from the Wikipedia article "Air engine", which has been released under the GNU Free Documentation License.
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