# hot air engine

> external combustion engine using air as the working fluid

**Wikidata**: [Q166761](https://www.wikidata.org/wiki/Q166761)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Hot_air_engine)  
**Source**: https://4ort.xyz/entity/hot-air-engine


## References

1. Freebase Data Dumps. 2013