Patent ID: 6439182
Filing Date: 2002-08-27
Classification: F01L

Abstract:
A valve timing adjusting device which is installed in a driving force transmitting system for transmitting a driving force from a driving shaft of an internal combustion engine to a driven shaft for opening and closing at least one of an intake valve and an exhaust valve, and adjusts the opening-closing timing of at least either one of the intake valve or the exhaust valve, said valve timing adjusting device comprising:a housing member rotating together with said driving shaft, said housing member defining a housing chamber thereinside; and a vane member rotating together with said driven shaft, said vane member housed in said housing chamber to partition said housing chamber into a retard chamber and an advance chamber, said vane member driven to rotate by a fluid pressure with respect to said housing member within a range of predetermined angle, wherein one of said housing member and said vane member includes a straight hole, said straight hole has an axis perpendicular to a direction of relative rotation of said vane member with respect to said housing member, the other of said housing member and said vane member includes a restraining pin, said restraining pin has a first cylindrical portion and a second cylindrical portion, said first cylindrical portion is adapted to be retained by said straight hole to restrain the relative rotation of said vane member with respect to said housing member in a predetermined angular range, said second cylindrical portion is formed on a base end side of said first cylindrical portion and thicker than said first cylindrical portion, said second cylindrical portion is adapted to be retained by said straight hole to restrain the relative rotation of said vane member with respect to said housing member at a predetermined angular position, and a pin driving means is provided for driving said restraining pin into and out of said straight hole.