ARRANGEMENT WITH A VENTILATOR AND A PUMP
First Claim
Patent Images
1. An arrangement having a fan (42;
-
42′
, 42″
) and a fluid pump (27;
134), and having an electric drive motor (21;
106), which motor comprisesa stator (22) having a stator winding (23;
118) that is configured for generating a rotating field,which stator (22) has associated with it a permanent-magnet external rotor (48;
106) for driving the fan (42;
42′
, 42″
) and a permanent-magnet internal rotor (26;
140) for driving the fluid pump (27;
134), said rotors both magnetically interacting with said rotating field generated by said stator, so that, in operation, said rotors are driven by said rotating field.
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Accused Products
Abstract
A compact arrangement features a fan (42′), a fluid pump (134), and an electric drive motor (106). The latter has a stator (22) having a stator winding (118) that is configured to generate a rotating field. The stator (22) has associated with it a permanent-magnet external rotor (106) for driving the fan (42′), and a permanent-magnet internal rotor (140) for driving the fluid pump (134). The stator winding (118) thus drives not only the rotor (106) of the drive motor and hence the fan (42′), but also the internal rotor (140) and hence the fluid pump (134). The arrangement is very well suited for combination with a fluid cooler (90).
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Citations
20 Claims
-
1. An arrangement having a fan (42;
-
42′
, 42″
) and a fluid pump (27;
134), and having an electric drive motor (21;
106), which motor comprisesa stator (22) having a stator winding (23;
118) that is configured for generating a rotating field,which stator (22) has associated with it a permanent-magnet external rotor (48;
106) for driving the fan (42;
42′
, 42″
) and a permanent-magnet internal rotor (26;
140) for driving the fluid pump (27;
134), said rotors both magnetically interacting with said rotating field generated by said stator, so that, in operation, said rotors are driven by said rotating field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
42′
Specification