| 摘要 |
FIELD: machine building. ^ SUBSTANCE: proposed valve comprises valve assembly. The latter includes common bypass valve 4, inlet channel 20, outlet channel 22, return channel 23 communicated with bypass valve, and axially moving gate device 8, 15. In first position, device 8, 15 allows fluid to flow between channel 22 and channel 23 with channel 20 closed. In second position, device 8, 15 is axially shifted with respect to first position to allow fluid to flow between channel 20 and channel 22 with channel 23 closed. Spring 14 aims at driving device 8, 15 to its first position. Electrical drive 19 is connected with gate device and comprises permanent magnet 24 and electrical coil 25 with magnetic core. One of said device, either magnet or core, makes stator. Another device makes moving part. The latter is connected with gate device 8, 15 to displace the latter from first position into second position. Electrical drive operated from the mains. ^ EFFECT: reduced electric power consumption. ^ 9 cl, 3 dwg |
