| 摘要 |
PURPOSE:To obtain a changeover valve having simple valve structure by making a valve body from a cylinder formed integrally then providing a seat having a plurality of leading port on the inner face of the valve body and providing a valve body being driven through a solenoid slidably on the seat. CONSTITUTION:A valve body 21 is formed into an integral cylinder, and a seat 20 having a leading port 16 and switching ports 17, 18 is provided at the inside of the valve body 12. A valve body 34 for communicating between the lead-in port 16 an any one of the switching ports 17, 18 is arranged slidably on the seat 20. The valve body 34 is coupled with a plunger 30 and driven such that the lead-in port 16 is switched to any one of the switching ports 17, 18 by means of a solenoid 24 and a spring 29 arranged at the right end portion of the valve body 12. Conseqnently, the valve structure is simplified, manufacture of valve is facilitated and the number of parts of parts is reduced.
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