PUMP ASSEMBLY FOR RECIRCULATING A COOLING FLUID OF A HEAT ENGINE

摘要

Pump assembly for recirculating a cooling fluid of a heat engine, comprising:
a pump body, an impeller driven by a driven shaft and inserted in a chamber of the circuit for recirculating the cooling fluid of the heat engine;at least a reversible friction clutch, adapted to transmit the motion from motion generating means, coupled to the motor shaft of the vehicle, to the driven shaft,an electric motor to drive said driven shaft independently of the heat engine; whereinsaid electric motor and said friction clutch are arranged in an axially external position with respect to the motion generating means of the clutch.;Preferably, said electric motor is axially opposed to the friction clutch with respect to the motion generating means, and is axially adjacent to the chamber of the impeller in the axial direction.

主权项

1. Pump assembly for recirculating a cooling fluid of a heat engine, comprising:
a pump body, an impeller driven by a driven shaft, adapted to be associated to a cooling circuit of the heat engine; a pulley adapted to be rotationally driven by the heat engine, at least a reversible friction clutch, adapted to connect/disconnect said pulley to/from said driven shaft, an electric motor associated to said driven shaft to rotationally drive the impeller when said reversible clutch is disconnected; characterized in that said pump body defines a longitudinal development having a radial narrowing portion where said pulley is defined and wherein said electric motor and said reversible friction clutch are arranged in an axially mutually opposite position with respect to said axial narrowing portion, namely mutually spaced by means of said axial narrowing portion.