Method and apparatus for preventing fluid leakage from a gear ca

Details Method and apparatus for preventing fluid leakage from a gear ca Method and apparatus for preventing fluid leakage from a gear ca

1988-05-20

1989-07-18

Croyle, Carlton R.

Lubrication

Systems

Gearing

74467, F01M 910, F01M 1302

Patent

active

048485187

ABSTRACT:
A method and apparatus is disclosed for preventing leakage of a fluid such as a lubricant from a gear case. In this method and apparatus, the ambient pressure inside the gear case is maintained slightly lower than the air pressure outside the gear case. By maintaining this pressure differential, air flows from outside the gear case into the gear case through any openings from which lubricant would otherwise leak. Leakage of the lubricant through such openings in the gear case is thereby prevented.

REFERENCES:
patent: 4046222 (1977-09-01), Shrivaner et al.
patent: 4263981 (1981-04-01), Weiss et al.
patent: 4632650 (1986-12-01), Frieden et al.

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