Hydraulic control system for a CVT
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United States of America Patent
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-
Oct 9, 2001
Grant Date -
N/A
app pub date -
Mar 20, 2000
filing date -
Apr 1, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for control of a CVT driven by a drive unit has an electromagnetically controlled pressure-control valve which actuates both a main pressure valve and a secondary valve for the secondary pulley wherein geometry and spring tension of a main pressure valve and the secondary valve provide different characteristic lines.
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