Liquid cooled rotor assembly

Details Liquid cooled rotor assembly Liquid cooled rotor assembly

2008-12-20

2009-08-25

Nasri, Javaid (Department: 2839)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

07579725

ABSTRACT:
A rotor assembly cooling system (100) and method of using same are provided. A portion of the rotor shaft (103) is hollow, the rotor shaft including an open end (107) and a closed end (105). A coolant feed tube (109) is rigidly attached to the rotor shaft (103) using one or more support members (111), thus causing the shaft and the feed tube to rotate at the same rate. Coolant is pumped through the feed tube until it exits the end of the feed tube and flows against the inside surface of the closed end of the rotor shaft causing the coolant to change direction and flow back through the coolant flow region, this region being defined as the space between the outer surface of the feed tube and the inner surface of the hollow rotor shaft.

REFERENCES:
patent: 5589720 (1996-12-01), Berger
patent: 6191511 (2001-02-01), Zysset
patent: 6329731 (2001-12-01), Arbanas et al.
patent: 6626649 (2003-09-01), Cowans
patent: 6734585 (2004-05-01), Tornquist et al.
patent: 7009317 (2006-03-01), Cronin et al.
patent: 7042121 (2006-05-01), De Filippis et al.
patent: 7112901 (2006-09-01), Soitu
patent: 7156195 (2007-01-01), Yamagishi et al.

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