Brushless motor with torque and speed proportional coolant flow

Details Brushless motor with torque and speed proportional coolant flow Brushless motor with torque and speed proportional coolant flow

1995-11-02

1997-12-16

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 51, 310 53, 310 54, 475161, 180 65E, 180 655, H02K 900

Patent

active

056989121

ABSTRACT:
A brushless electric motor has a fluid-tight housing, an internal rotor which is connected to an output shaft, stator plates which are disposed at a radial spacing from the rotor, a coolant delivery line leading into the interior of the housing, and a coolant discharge line leading out of the housing. A control arrangement, which as a function of the rotational speed and torque adjusts the volume flow of the coolant flowing through the interior of the housing, is provided to keep the efficiency of the arrangement as a whole high and to provide an electric motor having high power density.

REFERENCES:
patent: 4341093 (1982-07-01), Oishi et al.
patent: 4418777 (1983-12-01), Stockton
patent: 5019733 (1991-05-01), Kano et al.
patent: 5156579 (1992-10-01), Wakuta et al.
patent: 5196746 (1993-03-01), McCabria
patent: 5431141 (1995-07-01), Kanazawa et al.

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