Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
August 20, 2019
Patent Application Number
15622621
Date Filed
June 14, 2017
Patent Citations Received
Patent Primary Examiner
Patent abstract
A piston of an internal combustion engine includes a crown surface, a first cavity, and a second cavity. The crown surface forms an internal wall surface of a combustion chamber. The first cavity is a depression provided in the crown surface. The second cavity is a depression provided inside the first cavity. The first cavity includes an upstream portion located upstream of the second cavity in a flow direction of a tumble flow flowing along the crown surface and a downstream portion located downstream of the second cavity in the flow direction. The upstream portion extends further in the flow direction than the downstream portion.
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