OIL COOLED GENERATOR

• US 3,596,120 A
• Filed: 11/10/1969
• Issued: 07/27/1971
• Est. Priority Date: 11/10/1969
• Status: Expired due to Term

• Current Assignee: Frederick M. Potter
• Original Assignee: Frederick M. Potter
• Inventors: Potter, Frederick M.
• Application Number:
  US04/875,236
• Time in Patent Office: 624 Days
• US Class Current: 310/41
• CPC Class Codes: H02K 9/00 Arrangements for cooling or ventilating channels or ducts in parts of the magnetic circuit H02K1/20, H02K1/32; channels or ducts in or between conductors H02K3/22, H02K3/24
• CPC Class Codes: H02K 9/19 for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Abstract

An oil cooled generator which utilizes oil flowing in channels between the pole body and the rotor field windings in intimate contact with the inner edge of the rotor field windings.

Claims

1. A rotor assembly for an oil cooled generator comprising a rotor shaft having a liquid coolant flowing therein, laminations mounted on said rotor shaft, field windings positioned on said laminations, means including winding supports forming a channel between said field windings and said laminations extending substantially parallel to the rotor axis to the ends of the laminations, a plurality of openings in said shaft, channels in said laminations in register with said openings, and means connecting said channels in said laminations to said channels between said field windings and said laminations to flow the coolant directly over said windings substantially axially to the ends of the laminations.

2. The combinations as set forth in claim 1 including means for said coolant to exit at the ends of said laminations after flowing over said windings.

3. The combination as set forth in claim 1 in which the means connecting the channels in said laminations to the channels between said laminations and said field windings include wedge winding supports.

4. The combination as set forth in claim 1 in which said first winding supports are insulation members.

5. The combination as set forth in claim 1 including means for retaining the end turns of said windings in position.

6. The combination as set forth in claim 5 in which said means include other winding supports and retaining bands.