Rotating motor and motor-driven vehicle

Details Rotating motor and motor-driven vehicle Rotating motor and motor-driven vehicle

1996-06-20

1998-04-28

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 64, H02K 900, H02K 132

Patent

active

057448809

ABSTRACT:
A rotating motor is provided which permits heat to be efficiently dissipated from all of the stator, rotor, and inner and outer races of bearings. This assures that the rotor exhibits a high intensity as it turns. Also, long bearing life is assured. A coolant enters a cooling passage formed in a first end bracket from entrance pipes and makes a half revolution, thus cooling a first one of the bearings. Also, the coolant cools the rotor via cooling disks and rotor disks. Then, the coolant flows into an outer surface-cooling passage in a motor housing and takes a zigzag course so as to make a substantially half revolution, thus cooling the stator. The coolant then flows into a cooling passage in a second end bracket and makes one revolution, thus cooling a second bearing. At the same time, the rotor is cooled via the cooling disks and rotor disks. Subsequently, the coolant enters another outer surface-cooling passage and makes a substantially half revolution, thus cooling the stator. The coolant then flows into another cooling passage in the aforementioned first end bracket and makes a substantially half revolution, thus cooling the first bearing again. Also, the rotor is cooled via the cooling disks and rotor disks.

REFERENCES:
patent: 3497737 (1970-02-01), Philofsky
patent: 4350908 (1982-09-01), Riffe
patent: 4514652 (1985-04-01), Olson
patent: 4818906 (1989-04-01), Kitamura et al.
patent: 4870307 (1989-09-01), Kitamura et al.
patent: 5223757 (1993-06-01), Staub et al.
patent: 5317224 (1994-05-01), Ragaly
patent: 5488118 (1996-01-01), Nakamura et al.

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