Patent ID: 8763570
Filing Date: 2014-07-01
Classification: F02B,F02F,F02M,Y10T

Abstract:
1. An internal combustion engine assembly comprising: an engine block defining a first cylinder bore, a second cylinder bore directly adjacent to the first cylinder bore and a third cylinder bore directly adjacent to the second cylinder bore, wherein said first cylinder bore defines a working cylinder bore and at least one of said second and third cylinder bores defines a dedicated EGR cylinder bore; the engine block defining a first distance from a diametrical center of the first cylinder bore to a diametrical center of the second cylinder bore and defining a second distance from the diametrical center of the second cylinder bore to a diametrical center of the third cylinder bore; the first distance being different than the second distance; an air intake assembly including an intake air flow path in communication with a throttle valve and an intake manifold; and a cylinder head coupled to the intake manifold, the cylinder head being coupled to the engine block and defining an intake port in communication with the first cylinder bore and an exhaust port in communication with the second cylinder bore, the exhaust port being in communication with the intake manifold and providing exhaust gas from the second cylinder bore to the first cylinder bore.