The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 10, 2009
Filed:
Dec. 20, 2006
Daniel Fenioux, Saleux, FR;
Gino Villata, Buttigliera d'Asti, IT;
Jon Rost, Livonia, MI (US);
Michel Ginaldi, Ann Arbor, MI (US);
Pierre Quenioux, Farmington Hills, MI (US);
Daniel Fenioux, Saleux, FR;
Gino Villata, Buttigliera d'Asti, IT;
Jon Rost, Livonia, MI (US);
Michel Ginaldi, Ann Arbor, MI (US);
Pierre Quenioux, Farmington Hills, MI (US);
Valeo Embrayages, Amiens Cedex 2, FR;
Abstract
In a vibration filter for a transmission with automatic gear changing for a motor vehicle, including a torsion damper disposed between an input or driving element arranged to be driven in rotation by the crankshaft of the motor vehicle engine, and an output or driven shaft arranged to be coupled to an input shaft or driven shaft of the transmission, the torsion damper includes elastic means: the stiffness of the damper is variable and is obtained by virtue of the said elastic means, which are in the form of helical springs oriented substantially radially; the input element is a primary flywheel () which has at its radially inner periphery an axial flange () for supporting a bearing () which centers and guides in rotation a secondary inertial flywheel () constituting the output element.