Apparatus for encapsulating field windings of rotary electric ma

Details Apparatus for encapsulating field windings of rotary electric ma Apparatus for encapsulating field windings of rotary electric ma

1996-03-11

1998-06-02

Nguyen, Khanh P.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

425544, 425DIG228, 2642722, B29C 4502, B29C 4514

Patent

active

057595895

ABSTRACT:
It is generally known that the most common reason for replacing rotary electric machines is failure of field windings. Vibrations and primary overheating of field windings is the main reason for motor and generator repair. Consequently field windings have been fan cooled, externally ventilated, and totally enclosed. To solve this failure problem stators have been completely encapsulated, drip coated, and entirely coated. But all of these procedures are subject to certain disadvantages. The method and apparatus herein overcome such disadvantages. The apparatus includes structural members for embedding in a solid material field windings of stators of rotary electric machines in order to insulate and cool electric machines in which the stators are employed.

REFERENCES:
patent: 1925892 (1933-09-01), Apple
patent: 2019064 (1935-10-01), Apple
patent: 2058938 (1936-10-01), Apple
patent: 3058156 (1962-10-01), O'Connor
patent: 3256590 (1966-06-01), Myers
patent: 4714576 (1987-12-01), Cotton et al.
patent: 4845837 (1989-07-01), Lloyd
patent: 5149483 (1992-09-01), Okey et al.
patent: 5634258 (1997-06-01), Onodera et al.

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