Patent ID: 8807524
Filing Date: 2014-08-19
Classification: F02M,F16K,Y10T

Abstract:
1. An electromagnetic valve comprising: a valve case that is formed in a generally cylindrical shape from resin and includes: a filter held by the fitting groove; a covering member that is formed from resin and includes: a valve member that is accommodated in the valve accommodating part and is configured to be engaged with or disengaged from the valve seat so as to close or open a flow passage of fluid between the first port and the second port; an urging means accommodated in the valve accommodating part for urging the valve member in a direction to close or open the flow passage; and an electromagnetic driving unit accommodated in the valve accommodating part and configured to generate electromagnetic attraction so as to drive the valve member in the direction to close or open the flow passage against the urging means, wherein: an imaginary plane is provided to include a valve axis, which is a central axis of the valve accommodating part, and the central axis of the opening is a longitudinal symmetry plane; and an imaginary plane is provided to include the valve axis and perpendicular to the longitudinal symmetry plane is a shorter symmetry plane, the auxiliary wall is positioned symmetrically to the side wall, which is located closer to the valve axis, with respect to the shorter symmetry plane, the auxiliary wall being integrally formed with the valve case, and the auxiliary wall being separate from the filter and the fitting groove; the top plate part of the covering member is welded or adhesively bonded on an opening-side end face of the auxiliary wall; and the side wall and the auxiliary wall are welded and fixed to the covering member.