Title:
OVERRUNNING ISOLATING DECOUPLER PULLEYS
Document Type and Number:
WIPO Patent Application WO/2011/143580
Kind Code:
A3
Abstract:
Embodiments of the present invention provide improved overrunning pulleys that overcome one or more of the deficiencies in the prior art noted above. Embodiments of the present invention provide pulleys that are "springy" in the torque direction, yet have a lower effective spring constant (e.g., are less stiff) over a greater angular range. Further, in at least some embodiments, the inventive pulleys use a low cost and simple torque transfer geometry. Further, in at least some embodiments, the inventive pulleys afford significant overrun. Further, in at least some embodiments, the inventive pulleys are radially small in an overall envelope, in order to allow the alternator to reach its highest possible rotational speed, and thus output, during engine idle. Further, in at least some embodiments, the inventive pulleys are more durable, as they offer the aforementioned dynamics in both directions (torque and counter-torque).
Inventors:
CALI CONNARD (US)
FERREIRA CARLOS (BR)
FERREIRA CARLOS (BR)
Application Number:
PCT/US2011/036466
Publication Date:
April 05, 2012
Filing Date:
May 13, 2011
Export Citation:
Assignee:
CALI CONNARD (US)
FERREIRA CARLOS (BR)
FERREIRA CARLOS (BR)
International Classes:
F16D41/07; F16H55/36
Foreign References:
| US20080312014A1 | 2008-12-18 | |||
| US20040112700A1 | 2004-06-17 | |||
| JP2004324738A | 2004-11-18 | |||
| JP2008095927A | 2008-04-24 |
Other References:
See also references of EP 2569551A4
Attorney, Agent or Firm:
TABOADA, Alan (1030 Broad StreetSuite 20, Shrewsbury New Jersey, US)
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