# Category:Pistonless rotary engine

> Wikimedia category

**Wikidata**: [Q8763511](https://www.wikidata.org/wiki/Q8763511)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Category:Pistonless_rotary_engine)  
**Source**: https://4ort.xyz/entity/category-pistonless-rotary-engine