Power take-off system for an internal combustion engine
AssigneeCummins IP, Inc.
InventorsPaul A. Leggott, Jack R. Johnson
Life of this patent
Estimating the term…
Abstract
A power take-off system for an internal combustion engine that has a drive gear positioned within a crankcase includes a housing. The housing is coupleable to the internal combustion engine. The system also includes an input gear with a drive gear engagement portion, a toothed portion, and a shaft extending between the drive gear engagement portion and the toothed portion. The input gear is coupled to the housing such that the driver gear engagement portion is positioned within the crank case and the toothed portion is positioned within the housing. The input gear also includes a vent conduit that extends through the shaft. The vent conduit includes a first end open to the housing and a second end open to the crankcase.
Claims20
A power take-off system for an internal combustion engine having a drive gear positioned within a crankcase, comprising:
- a housing coupleable to the internal combustion engine;
- and
- an input gear comprising a drive gear engagement portion, a toothed portion, and a shaft extending between the drive gear engagement portion and the toothed portion, the input gear being coupled to the housing such that the driver gear engagement portion is positioned within the crank case and the toothed portion is positioned within the housing;
- wherein the input gear further comprises a vent conduit extending through the shaft, the vent conduit comprising a first end open to the housing and a second end open to the crankcase.
An input gear for a power take-off system coupled to a crankcase of an internal combustion engine, comprising:
- a drive gear engagement portion;
- a toothed portion;
- a shaft extending between the drive gear engagement portion and the toothed portion;
- and
- a vent conduit extending through the shaft between the drive gear engagement portion and the toothed portion, the vent conduit comprising a central portion extending along a length of the shaft, an input portion extending radially outwardly from the central portion, and an output portion extending radially outwardly from the central portion.
A method for venting air from a power take-off housing to a crankcase of an internal combustion engine, comprising:
- rotating an input gear relative to the housing, the input gear extending from a first location within the housing to a second location within the crankcase;
- and
- passing air from the power take-off housing to the crankcase through a conduit formed in the input gear while the input gear is rotating.
Dependencies are inferred from the claim text.