Patent ID: 9334844
Filing Date: 2016-05-10
CPC Classification: F02B,F02M

Claim Text:
1. An internal combustion engine comprising: an intake cylinder to accommodate intake and pre-compression of an oxidizing agent; a combustion cylinder to accommodate a further compression of the oxidizing agent, an injection and ignition of fuel, and a partial expansion of combustion gases produced by the ignition of fuel; and an exhaust cylinder to accommodate a further expansion of the combustion gases and subsequent exhausting of the further expanded combustion gases; a reciprocating piston inside each of the intake, combustion and exhaust cylinders; a crankshaft coupled to the reciprocating pistons; a first transfer passage to facilitate flow of the pre-compressed oxidizing agent from the intake cylinder to the combustion cylinder; and a second transfer passage to facilitate flow of the partially-expanded combustion gases from the combustion cylinder to the exhaust cylinder, wherein, during operation, a reciprocating piston inside the combustion cylinder is approximately at the center of its expansion stroke and is moving in a downward direction from top dead center to bottom dead center, when a second transfer valve between the combustion cylinder and the exhaust cylinder has just opened.