Global Patent Index - EP 0972177 A1

EP 0972177 A1 2000-01-19 - SELF-CONTAINED LIQUID COOLED AND LUBRICATED ELECTRICAL ROTARY MACHINE

Title (en)

SELF-CONTAINED LIQUID COOLED AND LUBRICATED ELECTRICAL ROTARY MACHINE

Title (de)

UNABHÄNGIGE FLÜSSIGKEITSGEKÜHLTE UND -GESCHMIERTE ELEKTRISCHE ROTATIONSMASCHINE

Title (fr)

MACHINE ELECTRIQUE TOURNANTE AUTONOME REFROIDIE ET LUBRIFIEE PAR LIQUIDE

Publication

EP 0972177 A1 (EN)

Application

EP 98917994 A

Priority

  • US 9806616 W
  • US 4260597 P

Abstract (en)

[origin: WO9844325A1] An electric rotary machine has a self-contained fluid cooled and lubricated structure in a drum drive. In one embodiment, the present invention is embodied in a drum type dynamometer, and more particularly, a chassis dynamometer for testing vehicles. Lubricating coolant is contained in a closed rotatable drum of the dynamometer. Agitators in the form of baffles are provided on the shaft, which facilitate coverage of the coolant on the internal components of the dynamometer. The present invention can be embodied as a drum type electric motor as well. The output drive of the motor is a rotating drum about a fixed shaft. Like the structure of the dynamometer, lubricating coolant is contained in the closed drum. Agitators in the form of baffles are provided on the shaft, which facilitate coverage of the coolant on the internal components of the motor. In both embodiments, the coolant carries heat from the internal components to the drum, which in turn, dissipates the heat to the ambient air.

IPC 1-7 (main, further and additional classification)

G01L 3/22; G01M 17/007

IPC 8 full level (invention and additional information)

G01L 3/22 (2006.01); G01M 17/007 (2006.01)

CPC (invention and additional information)

G01M 17/0072 (2013.01); G01L 3/22 (2013.01); G01M 17/0074 (2013.01)

Citation (search report)

See references of WO 9844325A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9844325 A1 19981008; WO 9844325 A9 19990422; AU 7101098 A 19981022; EP 0972177 A1 20000119; JP 2001519905 A 20011023; KR 20010005922 A 20010115

INPADOC legal status


2003-05-14 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20021101

2000-01-19 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991025

2000-01-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE