US Patent 7334671 Actuating device for a clutch

Patent 7334671 was granted and assigned to ZF Friedrichshafen on February, 2008 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

ZF Friedrichshafen

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

73346710

Patent Inventor Names

Olaf Langwald0

Date of Patent

February 26, 2008

Patent Application Number

105299960

Date Filed

October 11, 2003

Patent Primary Examiner

‌

Richard M Lorence

Patent abstract

An actuating device (18) or a clutch (16) of a motor vehicle (2) comprising one electric motor (34), one gearing (36, 40, 42, 44) which converts rotational motion of the electric motor (34) into a translatory motion and one accumulator (52). The converter gearing comprises one recirculating ball spindle (44). The accumulator (52) is at least partly situated within the recirculating ball spindle (44), and at least parts (58, 60) of a displacement sensor (56) are situated within the recirculating ball spindle (44).