| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid valve which can be inexpensively manufactured by simplifying the constitution of the solenoid valve, and at the same time, which facilitates piping installation, and which is low in cost and high in reliability. SOLUTION: One end of a joint 22 on the piping side, which is provided with a communication hole 21a made of a non-magnetic material, and one end of a joint 23 on the equipment side, which is provided with a communication hole 21b made of a magnetic material, are connected water-tightly apart with a prescribed interval by a tubular body 24 made of the non-magnetic material and they are linearly and integrally connected by laser welding or the like in the solenoid valve 20. A movable valve 25 made of a columnar magnetic material is internally mounted inside the tubular body 24 between the joint 22 on the piping side and the joint 23 on the equipment side so as to be capable of sliding. Communicating passages 26a, 26b composed of two recessed grooves are formed at symmetrical positions in the sliding direction of the outer peripheral face of the movable valve 25. Also, a notch groove 26c continuous to the communicating passages 26a, 26b is formed on the end face of the movable valve 25. COPYRIGHT: (C)2004,JPO&NCIPI
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