PUMP ARRANGEMENT Russian patent published in 2019 - IPC F04D13/02 F04D29/58 F04D29/06 

FIELD: engines and pumps.

SUBSTANCE: invention relates to a pump arrangement, more particularly a magnetic clutch pump arrangement (1) with a magnetic coupling, comprising an inner chamber (11) formed by a pump housing (2) in the pump arrangement (1), a containment shell (10) which includes a shroud (28) and seals enclosed chamber (12) with respect to the inner chamber (11) formed by the pump housing (2), an impeller shaft (13) that can be driven in rotation about an axis of rotation (A), an impeller (16) mounted on one end of the shaft (13), an inner rotor (17) mounted on the other end of the shaft (13), an auxiliary impeller (20) mounted in the chamber (12), and an outer rotor (26) which co-operates with the inner rotor (17). Auxiliary impeller (20) is an open or half shrouded impeller and its open side is fixed to the end side of the inner rotor (17) facing the bottom (28) of the containment shell (10).

EFFECT: invention provides a magnetic coupling pump assembly with a simple to produce forced lubrication current drive with improved efficiency.

12 cl, 8 dwg