April 24, 2012
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The engine operates through boiling liquid air with ambient heat to produce high pressure gas that can be used to do work. The only exhaust is cold air. Previous attempts to develop this technology involved large and heavy high pressure heat exchangers making it expensive and unsuitable for mobile applications.

The technology operates through the controlled boiling of cryogenic liquids (e.g. air or nitrogen). If this boiling takes place in a confined space then high pressure gas can be produced that can be used to do work.

Previous attempts to develop this technology involved large and heavy high pressure heat exchangers making it expensive and unsuitable for mobile applications.

The Dearman Engine Company is exploiting a novel approach (patent granted) where the heat exchange process takes place inside the engine. Heat is provided by direct contact with a liquid heat exchange fluid. This step eliminates the heavy and expensive heat exchangers required previously.

How does it work?  |  Current Programmes   |  Work done to date 
How does it compare?   |   Cryogenic liquids as an Energy Carrier