Electromagnetic valve

An electromagnetic valve comprising:

• a solenoid;
• a plunger arranged on an axis of said solenoid for axial movement therealong;
• a body in which said plunger is slidably received;
• a housing in which said body is fixedly arranged;
• a valve seat which is arranged in opposition to one end of said plunger, and which the one end of said plunger is moved to contact with and separate from;
• and
• a spring for urging said plunger in a direction toward or away from said valve seat;
• wherein said body has an engagement groove, into which one end of said housing is flexed toward said body to form a caulking portion, by which said body and said housing are integrally coupled with each other,
• wherein said solenoid is not disposed entirely within said housing, and
• wherein the ratio (E/D) of a bent length E of said caulking portion to a depth D of said engagement groove is in a range of from 1.5 to 1.6.

An electromagnetic valve comprising:

• a solenoid;
• a plunger arranged on an axis of said solenoid for axial movement therealong;
• a body in which said plunger is slidably received;
• a housing in which said body is fixedly arranged;
• a valve seat which is arranged in opposition to one end of said plunger, and which the one end of said plunger is moved to contact with and separate from;
• and
• a spring for urging said plunger in a direction toward or away from said valve seat;
• wherein said body has an engagement groove, into which one end of said housing is flexed toward said body to form a caulking portion, by which said body and said housing are integrally coupled with each other,
• wherein said solenoid is not disposed entirely within said housing, and
• wherein said caulking portion comprises a plurality of caulking segments arranged at intervals in a circumferential direction of said housing.

An electromagnetic valve comprising:

• a solenoid;
• a plunger arranged on an axis of said solenoid for axial movement therealong;
• a body in which said plunger is slidably received;
• a housing in which said body is fixedly arranged;
• a valve seat which is arranged in opposition to one end of said plunger, and which the one end of said plunger is moved to contact with and separate from;
• and
• a spring for urging said plunger in a direction toward or away from said valve seat;
• wherein said body has an engagement groove, into which one end of said housing is flexed toward said body to form a caulking portion, by which said body and said housing are integrally coupled with each other,
• wherein said solenoid is not disposed entirely within said housing, and
• wherein said engagement groove comprises a plurality of engagement groove portions at intervals in a circumferential direction of said body.