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US 2021/0332773 A1Published application
Piston for an internal combustion engine having liquid metal cooling
AssigneeMahle International GmbH
InventorsUlrich Bischofberger, Luca Rederer, Ulrich Stumkat
Life of this patent
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Abstract
A piston for an internal combustion engine may include a piston crown having a closed circumferential cooling channel, a piston skirt, a first metallic coolant arranged in the cooling channel and having a metal or metal alloy with a melting point below 250° C., and a second nonmetallic coolant arranged in the cooling channel and having a melting point below 40° C. and a density which is lower than a density of the first coolant.
Claims20
A piston for an internal combustion engine having, comprising:
- a piston crown having a closed circumferential cooling channel;
- a piston skirt;
- a first metallic coolant arranged in the cooling channel and having a metal or metal alloy with a melting point below 250° C.;
- and
- a second nonmetallic coolant arranged in the cooling channel and having a melting point below 40° C. and a density which is lower than a density of the first coolant.
2 more elements
Dependencies are inferred from the claim text.