Internal combustion engine
AssigneeAudi AG
InventorPeter SCHLEGELMILCH
Life of this patent
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Abstract
An internal combustion engine, having a cylinder crankcase delimiting a crank chamber and a lubricant pan accommodating a lubricant sump, which has a lubricant pan upper part arranged between the crank chamber and the lubricant sump and a lubricant pan lower part fastened on the lubricant pan upper part. Multiple ridges originate from a base component of the lubricant pan upper part in the direction of the lubricant sump, which ridges partially intersect and thus form chambers which are peripherally closed in section between them, and lubricant passage openings formed in the lubricant pan upper part open into at least part of the chambers, via which openings the crank chamber and the lubricant sump are fluidically connected.
Claims21
1-10. (canceled)
An internal combustion engine, comprising:
- a cylinder crankcase delimiting a crank chamber and a lubricant pan accommodating a lubricant sump, which has a lubricant pan upper part arranged between the crank chamber and the lubricant sump and a lubricant pan lower part fastened on the lubricant pan upper part, wherein multiple ridges originate from a base component of the lubricant pan upper part in the direction of the lubricant sump, which ridges partially intersect and thus form chambers which are peripherally closed in section between them, and wherein lubricant passage openings formed in the lubricant pan upper part open into at least part of the chambers, via which openings the crank chamber and the lubricant sump are fluidically connected, wherein in at least one of the chambers, into which none of the lubricant passage openings opens, at least one ventilation opening opens, which additionally fluidically connects the crank chamber and the lubricant sump and has a smaller through-flow cross section in comparison to the lubricant passage openings.
Dependencies are inferred from the claim text.