Patent ID: 6834667
Filing Date: 2004-12-28
Classification: F02M,Y10T

Abstract:
A press-fitting structure of an adjustment pipe for adjusting a compression amount of a spring member for biasing a valve member, the press-fitting structure comprising:a cylindrical housing having an inner peripheral surface defining a cylindrical space in which the adjustment pipe is press-fitted to adjust the compression amount of the spring member by an adjustment of a press-fitted amount of the adjustment pipe; and a lubricating material on at least one of an outer peripheral surface of the adjustment pipe and the inner peripheral surface of the cylindrical housing, wherein: the lubricating material is a solid lubricant; each of the adjustment pipe and the cylindrical housing is made of stainless steel; and the solid lubricant is an oxalate film formed on at least one of the outer peripheral surface of the adjustment pipe and the inner peripheral surface of the cylindrical housing.