A new electrothermal fluid motor connected to an electrically controlled energy source for uniformly heating a unique reticulated heat exchanger, which together with an expansion fluid fills a chamber, having a mechanical energy output consisting of a jet flow or a change of force, pressure, or motion,...http://www.google.com/patents/US4583365?utm_source=gb-gplus-sharePatent US4583365 - Reticulated electrothermal fluid motor
