LiquidPiston is an engine technology company headquartered in Bloomfield, Connecticut. Founded in 2004, the firm develops rotary engines based on proprietary thermodynamic cycles. Its flagship X Engine employs the patented High Efficiency Hybrid Cycle (HEHC), an architecture that the company says yields engines substantially smaller, lighter, quieter, and more powerful than conventional piston-driven designs. The company claims up to ten times the power density and 30% greater efficiency compared with traditional engines, with power output scalable from 1 HP to over 1,000 HP.
The company was incubated at MIT and has raised over $50 million in funding. Its technology targets a broad range of sectors, including aerospace, defence, marine, UAV, automotive, urban mobility, and general industrial applications. LiquidPiston's work in thermodynamic cycle engineering and rotary engine design has been featured on Discovery Channel's How It's Made.
Key technical domains for the team include rotary engine technology, internal combustion engines, and thermodynamic cycle engineering.





