Patent ID: 6761137
Filing Date: 2004-07-13
Classification: F01B,F02B

Abstract:
A reciprocating piston internal combustion engine (1) having first and second cylinder banks (2, 3) each including at least two cylinders (2a, 2b, 2c, 3a, 3b, 3c) and being arranged adjacent each other in such a way, that the axes of the cylinders (2a, 2b, 2c and 3a, 3b, 3c) in the first and second banks (2, 3) extend essentially parallel, a piston (19, 20) movably disposed in each of said cylinders (2c, 3c), a crankshaft (5) rotatably supported so as to extend along said banks (2, 3) of cylinders between the longitudinal axes (10, 11) of the cylinders in the first and second cylinder banks (2, 3) and including for each cylinder a crank pin (7, 8), a cross-lever (14, 15) rotatably supported on each crank pin (7, 8) and extending therefrom in a direction essentially normal to the cylinder axes (10, 11) and the axis (9) of the crank shaft (5), a piston rod (12, 13) pivotally connected at one end to a piston (19, 20) and rotatably supported at the opposite end on a respective cross-lever (14, 15), and, for each cross-lever (14, 15) a control arm (16, 17) connected with one end to a free end of one of said cross-levers (14, 15) for acting on said cross-levers (14, 15) to adjust the compression ratio in the cylinders of said engine (1).