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US 8,408,167 B2Granted
Piston of engine
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorGabseok Ko
Life of this patent
Estimating the term…
Abstract
A piston cooling apparatus of an engine may include a combustion chamber formed between a piston disposed in a cylinder block and a cylinder head disposed on the cylinder block, wherein a surface area-enlarging portion is formed inside the piston on bottom surface of a crown of the piston.
Claims11
A piston cooling apparatus of an engine comprising a combustion chamber formed between a piston disposed in a cylinder block and a cylinder head disposed on the cylinder block,
- wherein a surface area-enlarging portion is formed inside the piston on bottom surface of a crown of the piston;
- wherein the surface area-enlarging portion includes at least two cooling grooves and a cooling fin on bottom surface of the surface area-enlarging portion;
- wherein the cooling fin is formed between the cooling grooves, the cooling fin and the cooling grooves being formed sequentially;
- and
- wherein a piston cooling jet is disposed on the cylinder block and supplies oil directly to the cooling grooves to increase cooling efficiency.
2 more elements
Dependencies are inferred from the claim text.