Global Patent Index - EP 1205020 A4

EP 1205020 A4 20030827 - WATER COOLED STATOR WINDING OF AN ELECTRIC MOTOR

Title (en)

WATER COOLED STATOR WINDING OF AN ELECTRIC MOTOR

Title (de)

WASSERGEKÜHLTE STATORWICKLUNG EINES ELEKTROMOTORS

Title (fr)

ENROULEMENT STATORIQUE REFROIDI PAR EAU POUR MOTEUR ELECTRIQUE

Publication

EP 1205020 A4 20030827 (EN)

Application

EP 00955543 A 20000815

Priority

  • US 0022327 W 20000815
  • US 14912999 P 19990816

Abstract (en)

[origin: WO0113496A1] A cooling device for cooling a stator (200) of the type having windings (1), electrically insulated from each other including a cooling member (14, 17, 101, 102), thermally coupled to an external surface of the windings. The cooling member has at least one passage extending through the member to receive a coolant from an external source. Because the passage for receiving the coolant is insulated from the high voltage stator conductors, water having ions (e.g., fresh water) can be used as the coolant for cooling the stator. Allowing the use of fresh water offers tremendous advantages in settings where deionized water is not readily available and eliminates the cost of a water deionization system.

IPC 1-7

H02K 9/19

IPC 8 full level

H02K 1/20 (2006.01); H02K 3/04 (2006.01); H02K 3/24 (2006.01); H02K 3/47 (2006.01); H02K 9/19 (2006.01)

CPC (source: EP US)

H02K 1/20 (2013.01 - EP US); H02K 3/24 (2013.01 - EP); H02K 3/47 (2013.01 - EP); H02K 9/197 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 0113496 A1 20010222; AU 6773300 A 20010313; EP 1205020 A1 20020515; EP 1205020 A4 20030827; JP 2003507994 A 20030225; JP 4188597 B2 20081126

DOCDB simple family (application)

US 0022327 W 20000815; AU 6773300 A 20000815; EP 00955543 A 20000815; JP 2001517484 A 20000815