Patent ID: 7237526
Filing Date: 2007-07-03
Classification: F02B,Y02T

Abstract:
1. An internal combustion engine with at least one engine member, the engine member including: a combustion chamber of a combustible mixture with fuel and oxidant components fitted with a compression system, an ignition system of the combustible mixture by an igniter, sequential let-through devices for the fuel and oxidant components and for the combustion products, wherein the ignition system includes a closed head substantially spherical with a wall enclosing the igniter in a precombustion chamber, the head including a set of orifices intended to communicate the combustion chamber and the precombustion chamber so that combustible mixture may flow into the precombustion chamber, and at least one of the let-through devices is a direct injector in the combustion chamber for the fuel and/or oxidant components, in all or in part, the fuel being injected directly and exclusively in the combustion chamber, wherein at least one orifice has dimensions of passageway not letting through a flame front from the precombustion chamber to the combustion chamber while letting through unstable species resulting from the combustion in the precombustion chamber in order to enable self-ignition of the combustible mixture of the combustion chamber.