| 摘要 |
PROBLEM TO BE SOLVED: To reduce a size and weight of a motor-operated valve by cutting down on the number of components thereof.SOLUTION: A valve element 80 is slidably disposed in a valve body 10 of a motor-operated valve 1, and biased toward a valve-closing direction by means of a screw feeding mechanism of a screw shaft 60. A coil spring 90 provided between the valve element 80 and an inner diameter part 11 of the valve body 10 biases the valve element 80 toward a valve-opening direction. The coil spring 90 is a tension spring which is a close-contact spring in its free state, and mounted to a threaded part 76 formed around a screw shaft receiving part 70 so as to be threaded and mounted to a threaded part 86 formed around the valve element 80. |
