Dual level inverted portal axle lubrication configuration

Planetary gear transmission systems or components – With lubricaton – For differential planetary gearing

Reexamination Certificate

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Details

C074S607000, C184S006120

Reexamination Certificate

active

06843746

ABSTRACT:
An axle system includes an axle lubrication level within an axle housing which is lower than a wheel end lubrication level within the wheel end assemblies. An opening through the wheel end assembly housing provides a fluid communication path between the wheel end assembly and the axle housing. A differential assembly rotates adjacent an opening such that lubrication at the wheel end lubrication level is rotated into the opening. The lubricant within the wheel end assemblies is maintained at the wheel end lubrication level. The shaft enters the wheel end assembly housing through a shaft opening which provides a communication path for the lubricant from the wheel end assembly back into the axle housing.

REFERENCES:
patent: 4217794 (1980-08-01), Yasui et al.
patent: 4242923 (1981-01-01), Nishikawa et al.
patent: 4244242 (1981-01-01), Uno et al.
patent: 4261219 (1981-04-01), Suzuki et al.
patent: 4319499 (1982-03-01), Sanui et al.
patent: 4352301 (1982-10-01), Fleury
patent: 4468981 (1984-09-01), Ries
patent: 5197929 (1993-03-01), Scheiber et al.
patent: 5535850 (1996-07-01), Tar et al.

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