Title:
IMPROVED ALL GEAR CROSSED-AXIS DIFFERENTIAL
Document Type and Number:
WIPO Patent Application WO/2010/144519
Kind Code:
A3
Abstract:
An all-gear differential designed primarily for motor vehicle use, employing a "cross-axis" arrangement defined by a pair of helical "side" or "S" gears rotatable about a common first axis and mountable on respective opposite vehicle axles, and one or more pairs of "balance" or "B" gears rotatable about second axes orthogonal to the first axis. The B gears have helical central portions for meshing with the helical S gears, and have spur gear end portions for meshing with each other. The B/S helical gear tooth ratio between each balance gear and its respective side gear greater than 0.60 and preferably is about 0.75, and the B/S helical angle ratio between each balance gear and its respective side gear is less than 43°/47°, more preferably is less than 40°/50° and about 35°/55°, and most preferably is about 27°/63°.
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Inventors:
GLEASMAN KEITH E (US)
GLEASMAN JAMES Y (US)
GLEASMAN JAMES Y (US)
Application Number:
PCT/US2010/037882
Publication Date:
April 07, 2011
Filing Date:
June 09, 2010
Export Citation:
Assignee:
TORVEC INC (US)
GLEASMAN KEITH E (US)
GLEASMAN JAMES Y (US)
GLEASMAN KEITH E (US)
GLEASMAN JAMES Y (US)
International Classes:
F16H48/12; F16H48/00
Domestic Patent References:
| WO2008055062A2 | 2008-05-08 |
Foreign References:
| US20080103008A1 | 2008-05-01 | |||
| JP2004346968A | 2004-12-09 | |||
| JPH0250546U | 1990-04-09 |
Attorney, Agent or Firm:
O'SHAUGHNESSY, Brian, P. (P.O. Box 1404Alexandria, VA, US)
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