| 摘要 |
PROBLEM TO BE SOLVED: To make compact an electric three-way valve in an electric air pump unit 1 with the electric three-way valve integrated with an electric air pump, to reduce its cost, and to lengthen the service life for operation. SOLUTION: A valve element of the two-position three-way selector valve driven at two positions by a motor torque of the electric motor 3 is structured by one valve 6, and the valve 6 and a valve shaft 7 is made as an integral component. By this structure, as a sealing component for maintaining airtightness between the valve 6 and the shaft 7 is unnecessary, and the number of components of the components structuring the electric three-way valve and assembly man-hour can be reduced, the body size of the electric three-way valve can be made small. Further, because the valve 6 does not slide on the outer periphery of the valve shaft 7, occurrence of defective sealing due to wear can be prevented. COPYRIGHT: (C)2007,JPO&INPIT
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