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US 12,000,355 B2Granted
Piston for internal combustion engine
AssigneeFederal-Mogul Nurnberg GmbH
InventorsJulian Zilker, Michael Scherer, Olga Seller, Sven Ungermann, Ralf Meske
Life of this patent
Estimating the term…
Abstract
A piston (10) for an internal combustion engine, includes shaft wall sections (18) for supporting in a cylinder or a cylinder liner, and at least one base support (20) that is connected thereto in the circumferential direction, and which has at least one contour that forms a section of a helix.
Claims11
A piston for an internal combustion engine, comprising:
- a pair of shaft wall sections 18 for support in a cylinder or cylinder liner;
- at least one base support extending in a circumferential direction from at least one of the shaft wall sections, wherein a bottom side of the at least one base support includes a curved segment having a positive length and extending along a path of a helix in the circumferential direction, and wherein the helix has a slope (k) ranging from 1:10 to 1:1 according to the following equation:
- k
- =
- h
- 2
-
- π
-
- r
- where r is radius of a cylindrical outer surface of the base support and his thread pitch.
8 more elements
Dependencies are inferred from the claim text.