Patent ID: 7975982

Claim:
An electromagnetic valve comprising: a stator assembly including an electrically energizable coil; an armature cooperating with the stator assembly to define a magnetic circuit upon energization of the coil, wherein the stator assembly includes a cylindrical thin-walled core which receives and reciprocally supports the armature, and the thin-walled core has a closed end and an open end, and an integral annular flange extending around the open end; a plug member closing the closed end of the thin-walled core, wherein the plug member has an inner portion and an outer portion, the inner portion is received in the thin-walled core, and the inner portion includes an inner face defining the closed end, and a peripheral face, complementary to the thin-walled core, the peripheral face including first and second annular recesses; a sealing ring received in the first annular recess, wherein a protrusion from the thin-walled core extends into the second annular recess and fixes the plug member in the thin-walled core; a valve body defining a flow passage between ports in the valve body; a recess in the valve body in which the annular flange of the thin-walled core is received, with the open end in communication with the flow passage; a washer, through which the thin-walled core passes, abutting the annular flange of the thin-walled core, wherein the washer has inner and outer cylindrical faces that match with respective adjacent cylindrical faces of the thin-walled core and the recess in a snug fit which holds the thin-walled core in axial alignment with the recess; a swaged joint in the valve body sealingly fixing the annular flange of the thin-walled core and the washer in the recess; and a valve member mounted on the armature, wherein the valve member reciprocates with the armature to control flow in the flow passage.