Oil gallery piston with improved thermal conductivity
AssigneeGM Global Technology Operations LLC
InventorJoseph C. Kopchick
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Abstract
A method of making a piston with enhanced thermal conductivity. In one embodiment, the method includes providing a piston with an oil gallery, the piston made of a material; and depositing a layer of a material in the oil gallery, the material having a higher thermal conductivity than a thermal conductivity of the piston material. Another aspect of the invention is a piston having enhanced thermal conductivity.
Claims21
A method of making a piston with enhanced thermal conductivity comprising:
- providing a piston having an oil gallery, the piston made of a first material;
- and
- depositing a layer of a second material in the oil gallery to form a continuous layer over the entire oil gallery, the second material having a higher thermal conductivity than a thermal conductivity of the first material.
A method of making a piston with enhanced thermal conductivity comprising:
- providing an aluminum or steel piston having an oil gallery;
- and
- depositing a layer of copper in the oil gallery by electroless plating to form a continuous layer over the entire oil gallery.
A piston having enhanced thermal conductivity, the piston made of a first material, the piston including an oil gallery coated with a continuous layer of a second material over the entire oil gallery, the second material having a higher thermal conductivity than a thermal conductivity of the first material.
Dependencies are inferred from the claim text.