Engine timing adjuster using oil-powered piston and camshaft

摘要

The oil sleeve (19) is secured to the screw element (22) by means of a ring piece (32) directed radially inwards. This piece is fixed as a separate part to one endface (31) of the sleeve and has an axial opening (33) or several spaced round the circumference in the form of geometrically free bores. The axial adjusting piston (7) has opposed bevel-toothed parts (6,8) of which part works with drive element (13) toothing (5) joined to the drive wheel (2). Part on the other hand works with the toothing (9) of an output element (10) connected to the camshaft. An annular space (34) is defined by sleeve endface and outside by screw (12) head (11) as well as radially by element bore (16) and the screw passes the hydraulic medium via element bore (35) in front of the piston endface (15). Space is fed with medium via opening from the second path (24) on the inner casing deriving from the radial bore (30) intersecting the camshaft.