Patent ID: 11965505
Assignee: VHIT S.P.A.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A pump comprising:
pumping means (2) for pumping a working fluid;
an electric motor (3) for actuating the pumping means (2); said motor (3) comprising a stator (31) and a rotor (32) that interact for actuation of the pumping means (2); said rotor (32) being rotatable about an axis of rotation (320);
an electronic unit (4) for controlling the electric motor (3);
a delivery conduit (5) for delivery of the working fluid downstream of the pumping means (2);
a cooling line (6) for cooling the electric motor (3) and the electronic unit (4), said cooling line (6) being permanently open and drawing off some of the working fluid processed by the pumping means (2);
an outer shell (8) which at least partially encloses the motor (3);
characterized in that the cooling line (6) comprises:
a first conduit (61) which is developed from a delivery area (22) of the pumping means (2); the delivery conduit (5) and the first conduit (61) being developed from a high pressure area of the pumping means (2);
ii) at least a first cavity (621) in which said working fluid circulates, the first cavity (621) being located downstream of the first conduit (61); a passage from the first conduit (61) to the first cavity (621) being marked by a change in direction of the working fluid; and
the first conduit (61) and the first cavity (621) conveying the working fluid away from the pumping means (2); the first cavity (621) being partially defined by the stator (31) and partially by the shell (8); said first conduit (61) having progressively decreasing transverse sections.