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Patent Searching and Data


Title:
MACHINE HAVING ELECTRICAL POWER SYSTEM AND CENTERED DRIVE COUPLING FOR SAME
Document Type and Number:
WIPO Patent Application WO/2012/122205
Kind Code:
A3
Abstract:
A machine (10), such as an electrically powered track type tractor, includes an engine (16) configured to rotate a generator (18). A drive coupling (20) has a first element fixed to rotate with the engine (16) and a second element fixed to rotate with the generator (18). The first and second elements are configured to rotationally couple together for transmitting torque from the engine (16) to the generator (18), but configured to allow relative slip between the first and second elements. The relative slip may occur during engine (16) start up as rotational rates pass through a range associated with the excitation of resonance torsional vibrations. A centering ring (80) has a radial outer surface (82) in contact with the first element and a radial inner surface (81) in contact with the second element. The centering ring (80) assists in avoiding an off center drive coupling arrangement while electrically isolating the first element from the second element.

Inventors:
BAUMANN, Jonathan (1202 North Garfield Avenue, Peoria, IL, 61606, US)
CRUCE, Perry (408 Kaskaskia Road, Marquette Hts, IL, 61554, US)
Application Number:
US2012/027954
Publication Date:
November 08, 2012
Filing Date:
March 07, 2012
Export Citation:
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Assignee:
CATERPILLAR INC. (100 N.E. Adams Street, Peoria, IL, 61629-9510, US)
BAUMANN, Jonathan (1202 North Garfield Avenue, Peoria, IL, 61606, US)
CRUCE, Perry (408 Kaskaskia Road, Marquette Hts, IL, 61554, US)
International Classes:
H02P9/04; B60K6/20; F02D35/00
Domestic Patent References:
WO2002009258A12002-01-31
Foreign References:
US7547981B22009-06-16
JP2008206467A2008-09-11
US6710482B22004-03-23
JP2001025198A2001-01-26
Attorney, Agent or Firm:
GREENE, Jeff, A. et al. (100 N.E. Adams Street, Peoria, IL, 61629-9510, US)
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