METHOD FOR MOUNTING A VALVE RAIN OF AN INTERNAL COMBUSTION ENGINE

摘要

A method for mounting a valve train (1) of an internal combustion engine, having, parallel to a row of cam followers (2), a camshaft (13) which has a cam (15) per cam follower (2), which cam (15) acts on the roller (10) of said cam follower (2), which camshaft (13) is supported with respect to the cylinder head (3) via an axial bearing (14), wherein a) the cam followers (2) are provided presorted into two main groups (A, B); b) the two mounts (11) of each cam follower (2) of the first main group (A) run with offset in relation to the longitudinal extent of the cam follower (2) in the side surfaces (12) with respect to one another in such a way that an axial line of the pin (9) differs in the clockwise direction from perpendicular; c) the offset of the second main group (B) differs in the counterclockwise direction from perpendicular, and d) a partial quantity of the first and second main group (A, B) are selected and mounted for each row of cam followers (2) in order to minimize/compensate for an axial thrust of the camshaft (13).

主权项

1. A method for mounting a valve train of an internal combustion engine that is provided with at least one row of cam followers of which each is supported on a bottom side on one end by a pivot support relative to a cylinder head of the internal combustion engine and acts on at least one gas exchange valve on the other end and has, on the other side, at least in a middle section, a cut-out in which a roller that runs on a pin sits, wherein said pin is supported in mounts of side surfaces of the cut-out, wherein and parallel to the row of cam followers there is a camshaft that has, for each of the cam followers, a cam or a sliding cam package acting on a respective one of the rollers and the camshaft is supported by an axial bearing relative to the cylinder head of the internal combustion engine, the method comprising:
a) providing the cam followers pre-sorted into two main groups, b) the two mounts of each of the cam followers of the first main group run relative to each other with offset with respect to a longitudinal extent of the cam follower in the side surfaces such that an axial line of the pin deviated from perpendicular in a clockwise direction, c) the two mounts of each of the cam followers of the second main group run relative to each other with offset with respect to the longitudinal extent of the cam follower in the side surfaces such that an axial line of the pin deviates from perpendicular in a counterclockwise direction, and d) for each row of the cam followers, selecting a sub-group from the first and second main groups and mounting the sub-groups of the cam followers to at least one of minimize or compensate for an axial thrust of the camshaft on the axial bearing.