Method and device for additional thermal heating for motor vehicle equipped with pollution-free engine with additional compressed air injection
OwnerGuy Negre, Cyril Negreinventors
Life of this patent
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Abstract
The invention concerns a method for additional thermal heating for motor vehicle equipped with pollution-free engine operating with additional compressed air injection into the combustion chamber (2) and having high pressure compressed air storage reservoir (23). The high pressure compressed air contained in the reservoir is previously to its final use at a lower pressure, directed towards a thermal heater (56) to increase its pressure and/or volume before it is injected into the combustion or expension chamber (2). The invention is applicable to all engines equipped with compressed air injection.
Claims11
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.
A thermal heater device which comprises a thermal heater (56), a burner (57), a heat-exchange coil (58), a storage reservoir (23), an additional compressed air injector (22), a combustion or expansion chamber (2), and a buffer volume (43), wherein the thermal heater (56), which consists of the burner (57) fed with a fuel and of the heat-exchange coil (58), is positioned between the storage reservoir (23) and the additional compressed air injector (22), the burner (57) being means for heating up the air from the storage reservoir as it passes through the coil (58) so as to increase at least one of its pressure and its volume before it is injected into the combustion or expansion chamber (2), the buffer volume (43) being positioned between the thermal heater and the additional compressed air injector (22) making it possible to even out and avoid surge effects prior to said injection.
A thermal heating method for an engine or vehicle equipped with an engine that is free of pollution or that reduces pollution, operating with the injection of additional air into the combustion or expansion chamber, wherein compressed air is taken from the intake and compression chamber at the end of compression to be directed toward a thermal heater so that at least one of its pressure and its volume can be increased before it is injected into the combustion or expansion chamber.
Dependencies are inferred from the claim text.