H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 1/20 (2006.01) H02K 5/20 (2006.01) H02K 9/04 (2006.01)
Patent
CA 2686229
An electric machine comprising a stator having a stator winding, a housing accommodating the stator, a rotor, and an air gap having a generally cylindrical configuration. A plurality of circumferentially distributed, radial, first cooling gas ducts are provided in a stator core. Jets of cooling gas are directed to regions of an end winding which are relatively distant from the stator core, in order to achieve impingement cooling thereof. Flows of cooling gas are directed to portions of the end winding which are between the impingement cooled regions of the end winding and the respective front face of the stator core.
La machine électrique selon l'invention comprend un stator comportant un enroulement statorique, un logement accueillant le stator, un rotor, et un entrefer ayant une configuration globalement cylindrique. Une pluralité de premiers conduits de gaz de refroidissement radiaux répartis circonférentiellement sont disposés dans un noyau statorique. Les jets de gaz de refroidissement sont dirigés vers des régions d'un enroulement d'extrémité qui sont relativement distantes du noyau statorique, afin d'obtenir le refroidissement par contact de celui-ci. Les flux de gaz de refroidissement sont dirigés vers des parties de l'enroulement d'extrémité situées entre les régions refroidies par contact de l'enroulement d'extrémité et la face frontale respective du noyau statorique.
Lantto Erkki
Powell Charles B.
Reunanen Arttu
Saari Juha
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Sundyne Corporation
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