Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1997-08-04
1999-02-02
LaBalle, Clayton E.
Electrical generator or motor structure
Dynamoelectric
Rotary
310261, 310211, 310187, 310 52, H02K 524
Patent
active
058669590
ABSTRACT:
A rotating electrical machine has openings (105) in its stator teeth (101) occupying a substantial part of the surface area of each tooth so that the stator windings (103) have only a short thermal path to axial cooling ducts created by the openings. In another embodiment, each rotor tooth (109) is provided with a recess (110) at one corner of the tooth to form a recess axial cooling duct; the recess may be of such a depth as to expose part of an adjacent slot (118) to the recess duct. Cooling is by air, either in a single-ended or a double-ended axial ventilation system.
REFERENCES:
patent: 1996460 (1935-04-01), Coates
patent: 4208597 (1980-06-01), Mulach et al.
patent: 4217511 (1980-08-01), King et al.
patent: 4311932 (1982-01-01), Olson
patent: 4323802 (1982-04-01), Leistner
patent: 4994700 (1991-02-01), Bansal et al.
patent: 5084641 (1992-01-01), Saima et al.
patent: 5155404 (1992-10-01), Sadarangani
patent: 5182483 (1993-01-01), Hibino et al.
AEF, MITT vol. 54, No. 1/2 1964, "The state of development of squirrel-cage induction motors for high power ratings" by Egon C. Andresen.
The State of Development of Squirrel-Cage Induction Motors for High Power Ratings, Egon Christian Andresen, AEG. MITT vol. 54 Nos. 1/2, 1964, pp. 2-16.
The Bulb-Type Generators of Rock Island Power Station and Their Novel Cooling System, G. L. Ruelle, 8047 IEEE Transactions of Power Apparatus and Systems, 101 (1982) Jan.-May, Nos. 1-5, New York, USA, pp. 639-643.
GEC Alsthom Limited
LaBalle Clayton E.
Williams Timothy A
LandOfFree
Cooling arrangements for rotating electrical machines does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cooling arrangements for rotating electrical machines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cooling arrangements for rotating electrical machines will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1120184