Method and apparatus for cooling and lubricating a hybrid...

Details Method and apparatus for cooling and lubricating a hybrid... Method and apparatus for cooling and lubricating a hybrid...

2007-07-24

2007-07-24

Rodriguez, Saul (Department: 3681)

Planetary gear transmission systems or components

Input from independent power sources

Including electric motor input

C475S159000

Reexamination Certificate

active

11060075

ABSTRACT:
A method and apparatus for efficiently cooling and lubricating rotating components in a hybrid transmission is provided. By efficiently managing cooling flow to and between the rotating elements, flow requirements and associated pumping requirements within the drive unit are minimized. In addition, by providing a method for placing the fluid directly on the required components, spin losses associated with component contact with stray oil are reduced. Combined, the reduction in pumping and spin losses create a more efficient drive unit and an overall more efficient hybrid drive system which directly leads to higher fuel economy.

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patent: 6474444 (2002-11-01), Mochizuki
patent: 7022039 (2006-04-01), Hasegawa et al.
patent: 2002/0077209 (2002-06-01), El-Antably et al.

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