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:
Feb. 25, 2003
Filed:
Apr. 20, 2000
Ralf Vorndran, Eriskirch, DE;
ZF Batavia, L.L.C., Batavia, OH (US);
Abstract
An automatic transmission having at the input a starting element ( ), a reversing set ( ), a first electronic control unit ( ) and a cone pulley ( ) fixedly supported on one primary shaft ( ) and axially thereto a hydraulically adjustable cone pulley ( ), both pulleys forming a primary variator part ( ). In addition there is a cone pulley ( ) fixedly supported on a secondary shaft ( ) and axially thereto a hydraulically adjustable cone pulley ( ) together forming a secondary variator part ( ) wherein a belt-type organ ( ) between the cone pulleys ( ) drivingly connects the primary variator part ( ) with the secondary variator part ( ). The starting element ( ) is a dry running disc clutch whose disc is non-rotatably connected with the primary shaft ( ) and interacts in a clutch housing ( ) with a non-rotatably but axially movably disposed pressure plate ( ) actuated via axial bearings ( ) by a non-rotating actuator ( ), the clutch housing ( ) being non-rotatably connected with an input shaft ( ) of a prime mover ( ). The purpose is to reduce the rotating masses and to improve the adjustment of the variator ( ).