Internal combustion engine
AssigneeLiebherr-Components Colmar SAS
InventorsBechir MOKDAD, Yves-Antoine ROGARD
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Abstract
The present invention provides an internal combustion engine comprising a crankshaft, the crankshaft comprising main bearing journals and cranks for connecting the crankshaft to piston rods of the engine, wherein the crankshaft is provided with counterweights, wherein at least a first counterweight is formed as a separate element and connected to the crankshaft. The present invention is characterized in that at least a second counterweight is formed integrally with the crankshaft.
Claims18
An internal combustion engine comprising:
- a crankshaft, the crankshaft comprising main bearing journals and cranks for connecting the crankshaft to piston rods of the engine,
- wherein the crankshaft is provided with counterweights, wherein at least a first counterweight is formed as a separate element and connected to the crankshaft,
- wherein
- at least a second counterweight is formed integrally with the crankshaft.
An internal combustion engine, comprising at least 20 cylinders, arranged in a V-configuration, the internal combustion engine further comprising a crankshaft, the crankshaft comprising main bearing journals and cranks for connecting the crankshaft to piston rods of the engine,
- wherein the crankshaft is provided with counterweights,
- wherein
- at least two counterweights are provided on the crankshaft at different, non-zero angles with respect to a position opposite the crank pin of the corresponding crank.
A method for producing a crankshaft of a combustion engine, wherein at least two counterweights of the same basic type are formed as separate elements and connected to the crankshaft,
- comprising:
- in a first step, mass of at least one of the counterweights is reduced by a predetermined amount with respect to another counterweight of the same basic type by material removal,
- and in a second step, the unbalance of the crankshaft is measured and removed.
Dependencies are inferred from the claim text.