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US 5,997,260 AGranted
Air compressor engine barring adaptor
AssigneeCummins Engine Company, Inc.
InventorsDavid P. Genter, J. Eric Parlow, Roger L. Sweet, Nathan Ritchie
Life of this patent
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AssigneeCummins Engine Company, Inc.
InventorsDavid P. Genter, J. Eric Parlow, Roger L. Sweet, Nathan Ritchie
Estimating the term…
In an internal combustion engine, a barring adapter member is mounted on an auxiliary engine component, such as an air compressor shaft which is geared to the engine crankshaft. The barring adapter member is configured to receive a barring tool, permitting manual rotation of the air compressor shaft for desirably positioning engine crankshaft-driven components during engine repair or adjustment. In an arrangement according to the invention, the air compressor gear is enclosed by a gear casing, but the adapter is accessible through an aperture closeable by a removable cap. The barring adapter member facilitates barring the engine from a convenient position and is particularly advantageous in an engine designed to eliminate most externally-exposed rotational shaft seals and associated external pulleys conventionally used as barring locations.
An engine barring adapter comprising a barring adapter member including a shaft mounting portion, a tool engaging portion, and a cap screw fixedly connecting the shaft mounting portion to an air compressor shaft drivably connected to an engine crankshaft, the cap screw extending through the barring adapter member and disposed in threaded engagement with the air compressor shaft.
An engine barring adapter comprising a barring adapter member fixedly mounted to an end of an air compressor shaft, the end of the air compressor shaft having an air compressor gear fixedly mounted thereon, and the air compressor gear being operably engaged with a crank gear fixedly mounted on an engine crankshaft, such that rotation of the barring adapter causes rotation of the air compressor gear, which in turn causes rotation of the crank gear and engine crankshaft.
A barrable engine comprising:
A method of making a barrable engine, the method comprising the steps of:
An engine barring adapter comprising a barring adapter member including a shaft mounting portion, a tool engaging portion, and means for fixedly connecting the shaft mounting portion to an air compressor shaft drivably connected to an engine crankshaft, wherein the barring adapter member is unitarily formed with an air compressor gear.
A barrable engine comprising:
Dependencies are inferred from the claim text.