Patent ID: 7328773
Filing Date: 2008-02-12
Classification: F01L,F16K

Abstract:
1. An oil passage switching valve comprising: a cylindrical sleeve having openings through which oil flows; a valve body slidably disposed in the cylindrical sleeve, the valve body being moved in the sleeve so that the openings of the sleeve are selectively opened or closed to thereby switch oil passages; and an oil filter closely surrounding the outer periphery of the cylindrical sleeve to cover the opening so that foreign particles contained in the oil are prevented from entering into the sleeve, wherein: the oil filter is formed in a cylindrical shape by rounding a strip having a first end and a second end, the second end being overlapped on the first end across an entire width of the strip, the first end forming an inner overlapping portion and the second end forming an outer overlapping portion; and at least either one of the inner and outer overlapping portions includes a contacting portion projected toward the other overlapping portion, the contacting porting being formed by bending the respective end of the strip.