Patent ID: 7219632

Claim:
A narrow angle V-engine comprising: a plurality of pistons ( 3 ); a plurality of cylinders ( 2 ) arranged alternately in two adjacent banks, the pistons ( 3 ) being installed in the cylinders ( 2 ), the cylinders ( 2 ) having combustion chambers; a plurality of intake manifolds ( 50 ); a plurality of exhaust manifolds ( 70 ); intake ports ( 20 ) connecting the combustion chambers to the intake manifolds ( 50 ); exhaust ports ( 30 ) connecting the combustion chambers to the exhaust manifolds ( 70 ); a crankshaft ( 6 ); and con-rods ( 4 ) which connect the pistons ( 2 ) and the crankshaft ( 6 ), wherein the intake ports ( 20 ) of the two banks are all configured so as to pass through one of the banks, the exhaust ports ( 30 ) of the two banks are all configured so as to pass through the other bank, and an angle formed by the two banks is set to eight degrees or less, and wherein the pistons ( 3 ) and the con-rods ( 4 ) are connected by piston pins ( 5 ), each piston pin ( 5 ) being offset further toward the center of the engine than a centerline of the respective piston ( 3 ) and the cylinder ( 2 ).