Patent ID: 7770551
Filing Date: 2010-08-10
Classification: F02P

Abstract:
1. A process for ignition of combustion of fuel in a combustion space of an engine, comprising the steps of: conveying fuel into the combustion space; producing microwave energy in a microwave source located outside the combustion space; injecting the microwave radiation into and uniformly throughout the combustion space with fuel therein in at least one microwave pulse of short duration and of high energy; preventing formation of plasma by selection of a time interval for injecting of the microwave radiation, of power of the microwave radiation, of pulse duration and of pulse spacing; absorbing the microwave pulse by the fuel distributed into the combustion space; and igniting the fuel uniformly over a large space in the combustion space by energy delivered into the fuel due to absorption of the microwave pulse essentially at the same time.