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Patent Searching and Data


Title:
HYBRID FAN DRIVE WITH CVT AND ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2011/047243
Kind Code:
A3
Abstract:
A hybrid accessory drive system having two operational modes, a mechanical mode and an electric mode. The accessory is typically a cooling fan. A continuously variable mechanical belt drive mechanism drives the accessory as one mode of operation. An electric motor along with a planetary roller screw mechanism which converts rotary motion to axial motion is used to change the sheave position and thus the drive ratio. Upon disengagement of the mechanical drive mode, the electric motor can be used to drive the accessory in a second mode.

Inventors:
ROBY JOSHUA L (US)
Application Number:
PCT/US2010/052814
Publication Date:
August 18, 2011
Filing Date:
October 15, 2010
Export Citation:
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Assignee:
BORGWARNER INC (US)
ROBY JOSHUA L (US)
International Classes:
B60L50/16; F01P5/00; F16H9/00
Foreign References:
KR20070062326A2007-06-15
KR20020090647A2002-12-05
KR20060047985A2006-05-18
JP3043924U1997-12-12
JPH01138313A1989-05-31
Attorney, Agent or Firm:
ARTZ, John A. et al. (2756 Turtle Lake DriveBloomfield Hills, Michigan, US)
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