Hydraulic arrangement for actuating a plurality of shift rails
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United States of America Patent
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May 26, 2015
Grant Date -
Nov 1, 2012
app pub date -
Apr 21, 2012
filing date -
Oct 23, 2009
priority date (Note) -
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status (Latency Note)
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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.
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