| 摘要 |
<p>A compact and lightweight electromagnetic valve with a check valve is provided. In the electromagnetic valve, a plunger 16 is moved toward an end wall 22 of a housing of the electromagnetic valve by applying a voltage to a solenoid 14. Then, an annular valve seat engaging portion 64 of a valve member 48 attached to the plunger is urged against a valve seat around a fluid outlet 26 formed in the end wall 22 while being elastically deformed, thereby closing the fluid outlet 26. At the same time, a valve pressing member 46 attached to the plunger is separated from a valve member 52 disposed at a fluid opening 24 of an end wall 20 of the housing. Thus, the valve member 52 disposed at the fluid inlet 24 of the housing functions as a check valve to allow pressurized air to flow in from a pump. In a case where a voltage is not applied to the solenoid 14, the plunger 16 is biased toward the fluid inlet by means of a compression spring 60. Therefore, the valve pressing member 46 urges the first valve member 52 against a valve seat around the fluid inlet 24 to close the fluid inlet 24. The second valve member 48 is separated from the fluid outlet 26, whereby the fluid outlet 26 is opened and pressurized air is discharged to the atmosphere.</p> |
