Patent ID: 11920598
Assignee: BARUFFALDI S.P.A.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A pump for recirculating a cooling fluid for a vehicle, comprising:
a pump body (11), which is fixed during use;
an impeller (1) mounted on a driven shaft (2);
at least one friction coupling (20) of the electromagnetic type, comprising a fixed electromagnet (22), a rotor (21;121) and an armature (23);

movement take-up means (21c;121c) for taking up a rotational movement, configured to be connected to a movement source;, said movement take-up means (21c) being mounted on an outer bearing (40) keyed onto the pump body (11);
an electric motor (50) for driving the driven shaft (2) independently of the movement take-up means (21c; 121c);
a bell member (14;153) fastened to an end of the driven shaft opposite to that which carries the impeller,, wherein the friction coupling is designed to rotationally couple/decouple the movement take-up means (21c;121c) and the bell member (14;153);, wherein said electric motor (50) is arranged inside the bell member (14) on a side opposite to the impeller (1) relative to the friction coupling (20);, and wherein, said movement take-up means (21c;121c) is formed on an outer circumferential edge of a shaped circular ring (21a;121a) which forms part of said rotor (21) and is arranged in a position radially more outer lying than the electromagnet (22) and/or the armature (23) of the friction coupling.