US PATENT SUBCLASS 475 / 62
.~.~.~.~ Control responsive to relative impeller and turbine speeds

Current as of: June, 1999
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475 /   HD   PLANETARY GEAR TRANSMISSION SYSTEMS OR COMPONENTS

31  DF  FLUID DRIVE OR CONTROL OF PLANETARY GEARING {11}
59  DF  .~ Impeller-turbine type fluid circuit in series with planetary gearing {6}
60  DF  .~.~ And condition responsive control {1}
61  DF  .~.~.~ Control of or by fluid circuit {2}
62.~.~.~.~ Control responsive to relative impeller and turbine speeds {1}
63  DF  .~.~.~.~.~> System or servo fluid pressure controlled

DEFINITION

Classification: 475/62

Controls responsive to relative impeller and turbine speeds:

(under subclass 61) Subject matter wherein the difference in velocities of the input and output of the fluid torque transmitting means regulate the operation of the drive train*.

SEE OR SEARCH CLASS

477, Interrelated Power Delivery Controls, Including Engine Control,

61, for this combination and a motor control. [figure] [caption]speed ratio governor; engine; power shift gear transmission; hydraulic torque converter