Bistable electromagnetic valve e.g. for refrigerator, comprises valve chamber located inside control coil and permanent magnets located in valve housing

摘要

In the valve chamber (15) is slidable a valve member between two end positions, forming a magnetic armature for several permanent magnets (9,10) and at least one control coil (3). The permanent magnets are located inside the valve casing (2). Preferably the valve chamber is located inside the control coil. The permanent magnets are fitted next to the valve seat (17) and their polarization extends in axial direction. They are typically formed as annular magnets. Independent claims are included for cold generating circuit and for household machine containing such a circuit.