Patent ID: 8915081

Claim:
An internal combustion engine comprising: a working cylinder; an EGR cylinder; an intake system for supplying a combustion air charge to the cylinders; a first exhaust system for removing exhaust gas from the working cylinder and to the atmosphere; a second exhaust system for removing exhaust from the EGR cylinder and supplying the exhaust gas through an EGR supply conduit to the intake system; a compressor disposed in the intake system and configured to compress the combustion air and deliver it to the working cylinder and the EGR cylinder; a compressor inlet assembly having a combustion air inlet opening, in fluid communication with, and configured to receive combustion air from the intake system; a combustion air passage extending through the compressor inlet assembly to a combustion air charge outlet located downstream of the combustion air inlet opening and configured for fluid communication with the compressor; an EGR mixing conduit disposed within the compressor inlet assembly and having an EGR inlet configured for fluid communication with, and receipt of EGR from, the EGR supply conduit and an EGR passage extending from the EGR inlet to an EGR supply annulus disposed about the combustion air inlet opening; and a plurality of EGR ports extending between the EGR supply annulus and the combustion air passage to thereby fluidly connect the EGR supply annulus therewith for delivery of EGR thereto, wherein the combustion air delivered to the cylinders is a combination of combustion air and EGR.