Patent ID: 7341320
Filing Date: 2008-03-11
Classification: B60T

Abstract:
1. An electromagnetically actuated valve, comprising: a housing including a fluid path and a valve retaining bore; a tubular valve casing mounted to the valve retaining bore; a valve body electromagnetically operative to axially move within the tubular valve casing and allow and prevent a flow of fluid passing through the fluid path of the housing; a filter supported between an axial end of the tubular valve casing and a step portion of the housing, the filter including a fluid passage communicated with the fluid path of the housing; and a seal disposed on one axial end of the filter, wherein the seal is configured to: (a) allow a part of a flow of fluid flowing in one direction to bypass the filter; and (b) prevent a part of a flow of fluid flowing in an opposite direction from bypassing the filter, wherein the filter comprises a plurality of axial projections and at least one recessed portion between adjacent axial projections, wherein the part of the flow of fluid flowing in one direction to bypass the filter flows into a clearance that is defined between the recessed portion of the filter and the step portion of the housing, wherein the valve casing comprises an axial end portion, wherein the filter further comprises a cylindrical base wall and a fitting wall axially extending from an outer circumferential periphery of an axial end surface of the base wall, the fitting wall being fitted onto the axial end portion, and wherein the fitting wall of the filter comprises an inward projection radially inwardly extending from an inner circumferential surface thereof, the inward projection being pressed onto an outer circumferential surface of the axial end portion of the valve casing and holding the filter on the axial end portion of the valve casing.