| 摘要 |
PURPOSE:To reduce a rate of watt consumptionin a two-way solenoid valve for refrigerant, by energizing a solenoid with current only at a time when a plunger is shifting, while making it hold a position of the plunger by a coil spring at the valve closed state but by magnetic force of a permanent magnet at the valve opened state. CONSTITUTION:A coil spring 17 pushing a plunger 15 toward a refrigerant passage 13 is installed in position between the back of the plunger 15 of this two- way solenoid valve and a spring bearing 14, while a bracket 19 consisting of a ferromagnetic material is installed in the periphery of a valve body 11 at the backside of the plunger as coupled together with the valve body. Inside this bracket, there are provided with a solenoid coil 20 and a pair of permanent magnets 21. And, these permanent magnets are constituted so as to hold the plunger at a position hit to a stopper 18 in a state of opening the refrigerant passage 13. |
