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:
Sep. 23, 2014
Filed:
Jun. 30, 2011
Wilbert Greathouse, Canton, OH (US);
Richard Bednar, Cleveland, OH (US);
John Carrier, Westfield, OH (US);
Rashid Farahati, Copley, OH (US);
Jeremy Vanni, Sterling, OH (US);
Brian Zaugg, Millersburg, OH (US);
Jerry Munk, Zionsville, IN (US);
Bruce E. Fox, Indianapolis, IN (US);
Wilbert Greathouse, Canton, OH (US);
Richard Bednar, Cleveland, OH (US);
John Carrier, Westfield, OH (US);
Rashid Farahati, Copley, OH (US);
Jeremy Vanni, Sterling, OH (US);
Brian Zaugg, Millersburg, OH (US);
Jerry Munk, Zionsville, IN (US);
Bruce E. Fox, Indianapolis, IN (US);
Schaeffler Technologies GmbH & Co. KG, Herzogenaurach, DE;
Allison Transmissions, Inc., Indianapolis, IN (US);
Abstract
A torque converter assembly includes a cover for driving engagement with a prime mover, a piston plate including an annular surface for engaging a clutch, and a first seal disposed radially inward of the annular surface. In a lockup mode for the torque converter, the first seal blocks fluid flow through an orifice in the piston plate or between the cover and the piston plate and, in a release mode for the torque converter, the first seal is deflectable to enable a fluid flow through the orifice or between the cover and the piston plate and around the first seal. In an example embodiment, the torque converter assembly includes an apply chamber, the piston plate is displaceable in response to fluid pressure in the apply chamber, and the first seal is arranged to be deflected by the fluid pressure in the apply chamber.