| 摘要 |
<p>PURPOSE: To provide a valve suitable for using in a refrigeration system which operates actually at low noise and low wear. CONSTITUTION: A rotary magnetic valve 10 comprises a cylindrical housing 12 having flow passages 14, 16 on both ends, and a magnetically responsive valve closure assembly rotatably mounted therein. The valve closure assembly includes an armature 34 mounted to rotate about the longitudinal axis of the housing and shoes 36, 38 slidably arranged on the respective ends of the armature. Each shoe is biased away from the armature and into contact with the inner end surfaces of the housing. A controller assembly is provided to rotate the valve closure assembly between a first position where flow through the valve is prevented and a second position where flow is permitted. The controller includes at least one permanent magnet for biasing the valve closure assembly into one of the positions and an electromagnet for rotating the valve closure assembly into the other position.</p> |
