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US Patent 7479084 Range gearbox

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Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
74790841
Patent Inventor Names
Sverker Alfredsson1
Date of Patent
January 20, 2009
1
Patent Application Number
100656911
Date Filed
November 11, 2002
1
Patent Primary Examiner
‌
Tisha D Lewis
1
Patent abstract

Range gearbox for motor vehicles adapted to be connected to the output side of a basic gearbox and including planetary gear (7), enclosed in a housing (3), with a sun wheel (9) arranged on an input shaft (5) and engaged with planet wheels (10). The ring gear (14) is selectively lockable in order to establish gearing between the input shaft and the output shaft. Interacting tooth faces of the planetary gear (7) are angled in such a manner in relation to the longitudinal axis of the input shaft (5) and the output shaft (8) so that an axial force arises on the ring gear (14) from gear speed changes during synchronizing, and this force, at least on shifting to the low range position, tends to move the ring gear in the same direction as an external shifting force.

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