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US 2013/0158835 A1Published application
Internal combustion engine including crankshaft that is rotated while engine is in a non-fueled mode and method of operating an engine
AssigneeMack Trucks, Inc.
InventorsJohn Jerwick, John Bartel
Life of this patent
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Abstract
A method of operating an engine includes starting and stopping operation of an internal combustion engine that includes a crankshaft having a bearing journal and a bearing in which the bearing journal is rotatable. The crankshaft is constantly turned when the internal combustion engine is in the non-fueled mode. An oil pump can be driven to lubricate the bearing journal and the bearing while the internal combustion engine is in the non-fueled mode to provide hydrodynamic lubrication. An engine is also disclosed.
Claims19
A method of operating an engine, comprising:
- switching an internal combustion engine between being fueled and in a non-fueled mode, the internal combustion engine comprising a crankshaft having a bearing journal and a bearing in which the bearing journal is rotatable;
- and
- constantly turning the crankshaft when the internal combustion engine is in the non-fueled mode.
An engine, comprising:
- an internal combustion engine comprising a crankshaft having a bearing journal and a bearing in which the bearing journal is rotatable;
- and
- means for constantly turning the crankshaft when the internal combustion engine is in a non-fueled mode.
Dependencies are inferred from the claim text.