Patent ID: 11752454

Abstract:
A filter device is formed by installing an orifice member to the fluid passage of a filter body and avoids being functionally impaired by residue such as shavings generated during the installing of the orifice member. A filter device is provided with a filter body that has a fluid passage; and an orifice member that is installed in the fluid passage. The orifice member is provided with a body that has an orifice, a first flange that is press-fitted into the large-diameter part of the fluid passage, and a second flange that forms a closed trap space between itself and the first flange. A knurling is provided to the outer peripheral surface of the first flange. A knurling is provided to the outer peripheral surface of the first flange. Shavings formed during the installing of the orifice member to the filter body are captured in the trap space.