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:
Jan. 31, 2012
Filed:
Mar. 31, 2009
Mathias Remmler, Mauchenheim, DE;
Markus Rockenbach, Schweppenhausen, DE;
Axel Geiberger, Mainz, DE;
Mikael Mohlin, Kungälv, SE;
Mathias Remmler, Mauchenheim, DE;
Markus Rockenbach, Schweppenhausen, DE;
Axel Geiberger, Mainz, DE;
Mikael Mohlin, Kungälv, SE;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A double-clutch transmission is provided that includes, but is not limited to an inner input shaft inside an outer input shaft. Two clutch discs are connected to the inner input shaft and the outer input shaft, respectively. A first layshaft and a second layshaft are spaced apart from the inner input shaft and arranged in parallel to the inner input shaft. One or more of the two layshafts comprise a fixed output gearwheel for outputting a drive torque. Gearwheels are arranged on the shafts. The gearwheels comprise six gearwheel groups for providing six forward gears and one reverse gear. Each of the gearwheel groups comprises a first fixed gearwheel on one of the inner input shaft meshing with one of the idler gearwheels on one of the first layshaft, the second layshaft, or the third layshaft. Furthermore, a second fixed gearwheel meshes with a second gear idler gearwheel and a fourth gear idler gearwheel. The double-clutch transmission device further comprises a seventh gearwheel group for providing a seventh gear. The seventh gearwheel group comprises a seventh fixed gearwheel on the outer input shaft, meshing with a seventh gear idler gearwheel on one of the first layshaft, the second layshaft, or the third layshaft.