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:
May. 26, 2015
Filed:
Apr. 21, 2012
Eric Müller, Kaiserslautern, DE;
Reinhard Stehr, Bühl, DE;
Roshan Willeke, Bühl, DE;
Ronald Glas, Obersasbach, DE;
Martin Staudinger, Ettlingen, DE;
Marco Grethel, Bühlertal, DE;
Eric Müller, Kaiserslautern, DE;
Reinhard Stehr, Bühl, DE;
Roshan Willeke, Bühl, DE;
Ronald Glas, Obersasbach, DE;
Martin Staudinger, Ettlingen, DE;
Marco Grethel, Bühlertal, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A hydraulic arrangement by which a plurality of shift rails of a transmission are actuated, including one double acting cylinder per shift rail by which the respective shift rail can be moved back and forth. A first hydraulic valve is connected upstream of the plurality of shift rails and has a first output and a second output, by which a first shift pressure and a second shift pressure for actuating the shift rails can be provided. A second hydraulic valve is connected between the first hydraulic valve and two of the shift rails, and by which it is selectively possible for the first output of the first hydraulic valve to be associated with one of the double acting cylinders of the two shift rails, and the second output of the first hydraulic valve to be associated with the other double acting cylinder of the two shift rails.