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US 2021/0215118 A1Published application
Cast piston for an internal combustion engine, consisting of an iron-based material
AssigneeFederal-Mogul Nurnberg GmbH
InventorsCHRISTOFFER SCHMOLL, RAINER WEISS, MICHAEL SEIFFERT, MARK DAY, GEORG HOPP, FLORIAN SIGEL
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Abstract
A cast piston for an internal combustion engine is made of an iron-based material and has windows in at least one side wall carrying a piston pin boss. The windows are asymmetric relative to one another on the side of the skirt walls.
Claims12
A cast piston for an internal combustion engine, comprising a piston body made of an iron-based material having windows in at least one side wall thereof carrying a piston pin boss, which are asymmetric relative to one another.
A cast iron or steel piston for an internal combustion engine, comprising:
- a piston body having a piston crown,
- a pair of pin bosses depending from the crown, a pair of skirt portions depending form the crown, and
- connecting side walls joining the pin bosses to the skirt portion,
- wherein at least one of the side walls includes a window disposed on laterally opposite sides of the pin bosses, and
- wherein the opposing windows are asymmetrical relative to one another.
2 more elements
Dependencies are inferred from the claim text.