US Patent 7163094 Hydraulically actuatable gearshift system comprising a synchronizing device

Patent 7163094 was granted and assigned to ZF Friedrichshafen on January, 2007 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

ZF Friedrichshafen

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7163094

Date of Patent

January 16, 2007

Patent Application Number

10519446

Date Filed

June 26, 2003

Patent Primary Examiner

‌

Richard M Lorence

Patent abstract

A transmission shift system comprising a synchronizing device for idler wheels, which comprises one sliding sleeve that can mesh with a selected idler wheel. The sliding sleeve is arranged non-rotatably and axially displaceable on a shaft with hydraulic actuation being provided. Each sliding sleeve (6) is connected with the shaft (1) via a hub element (7). The synchronizing operation can be implemented as a function of the hydraulic actuation pressure.

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