US PATENT SUBCLASS 475 / 47
.~ Impeller-turbine type fluid circuit and mechanical path in parallel

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}
47.~ Impeller-turbine type fluid circuit and mechanical path in parallel {9}
48  DF  .~.~> With control of or by the fluid circuit {2}
51  DF  .~.~> With speed responsive control
52  DF  .~.~> And nonplanetary gearing
53  DF  .~.~> Planetary gearing divides paths
54  DF  .~.~> Sun, orbit and carrier braked
55  DF  .~.~> Sun and orbit braked
56  DF  .~.~> Sun and carrier braked
57  DF  .~.~> Orbit and carrier braked
58  DF  .~.~> Orbits braked

DEFINITION

Classification: 475/47

Impeller-turbine type fluid circuit and mechanical path in parallel:

(under subclass 31) Subject matter wherein the fluid torque transmitting means includes at least two coaxial bladed element forming a fluid filled torus, one functioning as an input element and the other as an output element and a separate mechanical drive train* is provided, by-passing the fluid torque transmitting means.

(1) Note. A mere lock-up clutch* which connects the input and output elements of the fluid unit together is not here but in subclasses 59+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

35+, especially subclass 41, for a fluid drive and mechanical drive in parallel where, in addition, the fluid unit has either two inputs or two outputs.

329+, for other plural power path transmissions and see the notes thereunder. [figure] [caption]out