Hydraulic circuit for a toroidal transmission
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United States of America Patent
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Sep 22, 2009
Grant Date -
Jul 19, 2007
app pub date -
Nov 10, 2006
filing date -
May 11, 2004
priority date (Note) -
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Abstract
A hydraulic circuit for a toroidal transmission comprises: a) a single pump, b) a main pressure controller connected to the pump to generate a main line pressure in a main line, c) a roller controller connected to the main line to generate two roller control pressures from the main line pressure, d) at least one hydraulic roller actuator for adjusting a roller in a toroidal space set up by two disks, the roller actuator being connected to the roller controller, e) a disk controller connected to the main line, a disk control pressure being generated in the disk controller from the main line pressure, and f) at least one hydraulic disk actuator for axially adjusting at least one of the disks, the disk actuator being connected to the disk controller.
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