Cam shaft assembly for use in internal combustion engine of automobile to control opening and closing times of gas exchange valves, has shaft parts connected with each other at connection section in torque-proof manner

摘要

#CMT# #/CMT# The assembly has an electromagnetic actuating unit (3) actuating a hydraulic camshaft adjusting device (2) connected with a control valve (4). The electromagnetic actuating unit comprises a coil (5) and an armature (6) that is displaceable in longitudinal direction of a cam shaft (1). The cam shaft is formed from two shaft parts (1a, 1b) that are arranged in the longitudinal direction, where the shaft parts are connected with each other at a connection section in a torque-proof manner, and the electromagnetic actuating unit is arranged at the connection section. #CMT# : #/CMT# The shaft parts are in tubular shape and the armature is in sleeve-shape. #CMT#USE : #/CMT# Cam shaft assembly for use in an internal combustion engine of an automobile to control opening and closing times of gas exchange valves. #CMT#ADVANTAGE : #/CMT# The cam shaft is formed from two shaft parts that are arranged in the longitudinal direction and connected with each other at the connection section in the torque-proof manner, and the electromagnetic actuating unit is arranged at the connection section, so that the dimensions of the engine can be reduced to certain extent, and efficient usage of installation space is achieved, thus achieving a shorter and compact construction of the cam shaft assembly. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic longitudinal sectional view of a cam shaft assembly. 1 : Cam shaft 1a, 1b : Shaft parts 2 : Hydraulic camshaft adjusting device 3 : Electromagnetic actuating unit 4 : Control valve 5 : Coil 6 : Armature.