PUMP UNIT Russian patent published in 1994 - IPC

FIELD: pump and compressor engineering. SUBSTANCE: clutch couples a shaft of a rotor with a driving shaft of an electromotor. Separating baffle interposed between a rocking unit and the electromotor and face wall positioned from the side of the electromotor form ring spaces around the driving shaft which face each other. Bearing supports are received in the spaces. Face cover of the rocking unit is secured to the separating baffle to form closed space which is in communication with a discharging passage. The driving shaft is provided with through axial passage and through radial openings facing the bearing support. The shaft of the rotor and the driving shaft are interconnected via a coupling to form spaces for flowing fluid from the closed space, which is formed by the face cover and the separating baffle, to axial passage of the driving shaft. The separating baffle and the face wall positioned from the side of the electric motor are provided with by- passing openings for flowing fluid and capability of communication with the outlet branch pipe . The face cover is provided with a radial passage which connects tank for lubricant with the discharging passage. EFFECT: enhanced efficiency. 2 cl, 3 dwg