ELECTROMAGNET-OPERATED AIR DISTRIBUTOR Russian patent published in 1998 - IPC

FIELD: air-operated actuating mechanisms. SUBSTANCE: air distributor has two nozzles, electromagnet with spring-loaded armature built integral with flap and placed between nozzles, air ducts running to nozzles. Each nozzle is made in the form of gap between two concentric tubes made of nonmagnetic material. Electromagnet armature is made in the form of disk whose diameter is not smaller than that of nozzle tube; it has central bore to pass shaft secured in one of stators of valve-type electromagnet and spring-loaded on both ends by cylindrical springs which are installed in stator holes; stators and coils are placed in internal tubes of each nozzle with clearance h between them determined by using dependence , where X_m is maximum armature travel; d is diameter of nozzle internal tube; b is internal tube wall thickness; stator poles are shifted from effective ends of their nozzles through amount of clearance to prevent seizure. EFFECT: improved design. 2 dwg