HERMETICALLY SEALED ELECTRIC PUMPING UNIT Russian patent published in 1998 - IPC

FIELD: aviation and rocket facilities; machine building hydraulics; temperature control systems. SUBSTANCE: hermetically sealed electric pumping unit has housing, hermetic hood and holder on which electric motor with cable and impellers is installed. Bore in holder is designed for electric motor flange. Beam made on hood flange is fitted in holder bore to thrust against electric motor flange. Through threaded holes are made on holder flange to receive fasteners clamping hood flange and housing flange with opposite end faces of holder flange. Electric motor space is sealed between cylindrical surfaces of bore and bead, and electric motor cable connector is located in holder flange. EFFECT: enhanced manufacturability and reliability of pumping unit. 1 dwg