Patent · US Active

Piston for an internal combustion engine and method for producing the piston for an internal combustion engine

US10436146B2 · kind B2 · utility

1Cited by

1References

8Claims

0Family size

Assignee

Federal-Mogul Nurnberg GmbH · DE

Inventors

Michael Seiffert · Nuremberg, DE
Hanno Necker · Nuremberg, DE
Georg Hopp · Nuremberg, DE

Key dates

Filing date	Jan 26, 2016
Grant date	Oct 8, 2019
Priority date	—
Expiry date	Jan 26, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02F2200/00
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A steel piston (10) for an internal combustion engine comprises a ring zone (12), a shaft (14), openings (16) between the ring zone (12) and shaft (14) which extend from the piston outer side to the piston inner side, and, between two openings (16), a rib (18) which is substantially central with respect to a length of a piston pin to be received, wherein, when viewed in the circumferential direction, the rib (16) has a decreasing thickness from the middle thereof, as measured in the radial direction. In a method for producing a steel piston for an internal combustion engine comprising a ring zone and a shaft, openings are formed between the ring groove region and the shaft which extend from the piston outer side to the piston inner side, and at least one rib is formed between the openings which is substantially central with respect to a length of a piston pin to be received, wherein, when viewed in the circumferential direction, the rib (16) has a decreasing thickness from the middle thereof, as measured in the radial direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.