Global Patent Index - EP 1047874 A1

EP 1047874 A1 2000-11-02 - ELECTRIC MOTOR WITH DRIVE

Title (en)

ELECTRIC MOTOR WITH DRIVE

Title (de)

ELEKTRISCHE MASCHINE MIT GETRIEBE

Title (fr)

MOTEUR ELECTRIQUE AVEC ENGRENAGE

Publication

EP 1047874 A1 (DE)

Application

EP 99963199 A

Priority

  • DE 9903522 W
  • DE 19852607 A
  • DE 19927521 A

Abstract (en)

[origin: US6409622B1] The synchronous or asynchronous electrical machine for an internal combustion engine can operate alternately in a starter mode during engine starting and a generator mode during engine operation in order to eliminate the need for a separate starter and generator. The electrical machine includes a two-stage planetary gear device coupled to a shaft of the internal combustion engine. The two-stage planetary gear device includes two stages with ring gears and respective braking devices assigned to the two stages that prevent the ring gears of those stages from rotating when engaged therewith. The two-stage planetary gear device operates with different gear ratios in the starter mode and the generator mode. The gear ratio in the starter mode is between 4 and 60 and between 1.6 and 4 in the generator mode. The ratio of the gear ratios in the starter mode and the generator mode must be at least two.

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

F02N 11/04; F16H 3/44

IPC 8 full level (invention and additional information)

F02N 15/02 (2006.01); F02N 11/00 (2006.01); F02N 11/04 (2006.01); F02N 15/04 (2006.01)

CPC (invention and additional information)

F02N 11/04 (2013.01); F02N 15/046 (2013.01)

Citation (search report)

See references of WO 0029744A1

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

US 6409622 B1 20020625; BR 9906923 A 20001010; EP 1047874 A1 20001102; EP 1047874 B1 20040728; JP 2002530570 A 20020917; JP 4582607 B2 20101117; WO 0029744 A1 20000525

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