# vacuum engine

> heat engine which uses air pressure on one side of a piston and a partial vacuum on the other

**Wikidata**: [Q1361438](https://www.wikidata.org/wiki/Q1361438)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Vacuum_engine)  
**Source**: https://4ort.xyz/entity/vacuum-engine


## References

1. Freebase Data Dumps. 2013