Patent ID: 6205966
Filing Date: 2001-03-27
Classification: F01L

Abstract:
An internal combustion engine having a bank of at least two cylinders and further comprising:a cylinder head (1) includingtwo intake valves (12) for each cylinder, said intake valves (12) being disposed on one side of a longitudinal vertical plane (14) of said engine defined by the axes (13) of said cylinders andtwo exhaust valves (11) for each cylinder, said exhaust valves (11) being disposed on the other side of said longitudinal vertical plane (14),a rocker arm housing (2) mounted on top of said cylinder head (1) with the juncture of said rocker arm housing (2) and said cylinder head (1) defining a parting plane (24),a forked intake rocker arm (4) for each cylinder operatively engaging said intake valves (12) of the associated cylinder,separate bearing journals (6) supporting said intake rocker arms (4) on said rocker arm housing (1) for pivoting about an intake rocker arm pivot axis (4a),a forked exhaust rocker arm (5) for each cylinder operatively engaging said exhaust valves of the associated cylinder anda continuous exhaust rocker arm support shaft (8) supporting all of said exhaust rocker arms (5) on said rocker arm housing (2) for pivoting about an exhaust rocker arm pivot axis (82)said exhaust rocker arm support shaft (8) being offset in a vertical direction from said bearing journals (6) supporting said intake rocker arms (4).