Pump for recirculating a cooling liquid for combustion engines with hybrid control system comprising electromagnetic friction coupling and electric motor which are axially offset

A recirculating pump for recirculating a cooling liquid of a vehicle combustion engine, comprising:

• a pump body (11) and an impeller (1) supported by a driven shaft (2), coaxial with each other;
• a first movement transmission device (100) for transmitting to the driven shaft (2) a movement generated by a shaft of the combustion engine of the vehicle and comprising movement receiving means (121), in particular at least one pulley (121a), for connection (103) with said shaft of the combustion engine;
• an electromagnetic friction coupling (120) connected to said movement receiving means (121);
• a second device (200) for generating a movement for the driven shaft (2) independently of the first movement transmission device (100) and comprising an electric motor (250) with stator (251) and rotor (253);
• connection means (3,4,4a) for connection to the driven shaft (2), rotationally integral with the driven shaft (2);
• wherein:
• the rotor (253) of the electric motor (250) is rotationally integral with the connection means for connection to the driven shaft (2);
• the electromagnetic friction coupling (120) is arranged so as to connect/disconnect the first movement transmission device (100) to the connection means (3,4,4a) for connection to the driven shaft;
• and
• said electric motor (250) is arranged in a position axially on the outside of the electromagnetic friction coupling (120) and on the opposite side of the latter with respect to the impeller (1).