Patent ID: 6305171
Filing Date: 2001-10-23
Classification: F01B,F02G

Abstract:
In a thermal heating method for an engine or vehicle equipped with an engine that is free of pollution or that reduces pollution, operating with injection of additional air into a combustion or expansion chamber and which has a high-pressure compressed-air storage reservoir, the improvement which comprises:expanding compressed air contained in the high-pressure storage reservoir, prior to its final use at a lower pressure and prior to being introduced into a thermal heater to allow at least one of its pressure and its volume to increase before it is injected into the combustion or expansion chamber, to a pressure in a variable-volume system, producing work, the consequence of which is that of cooling the compressed air thus expanded to a low temperature,thereafter sending the thus-cooled air into a heat exchanger to heat it and thus increase at least one of its pressure and its volume by recovering additional heat energy from ambient surroundings.