US PATENT SUBCLASS 475 / 113
.~.~ Impeller-turbine type fluid unit used as brake

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}
91  DF  .~ Fluid resistance inhibits relative rotation {5}
113.~.~ Impeller-turbine type fluid unit used as brake

DEFINITION

Classification: 475/113

Impeller-turbine type fluid unit used as brake:

(under subclass 91) Subject matter wherein at least two coaxial bladed elements form a fluid filled torus, one of said elements being either stationary or its motion controlled to retard another of said elements which is connected to a rotary planetary element.

SEE OR SEARCH CLASS

188, Brakes,

296, for impeller-turbine type brakes, per se.

192, Clutches and Power-Stop Control,

215+, for related art.

477, Interrelated Power Delivery Controls, Including Engine Control,

59, for hydrodynamic braking in combination with a motor control. [figure]