Patent · US Active

Steel piston with optimized design

US11566581B2 · kind B2 · utility

0Cited by

6References

12Claims

0Family size

Assignee

KS Kolbenschmidt GmbH · DE

Inventors

Emmerich Ottliczky · Forchtenberg, DE
Gerhard Luz · Bietigheim-Bissingen, DE
Eberhard Weiss · Pfullingen, DE
Ingo Roth · Hamburg, DE

Key dates

Filing date	Nov 14, 2018
Grant date	Jan 31, 2023
Priority date	—
Expiry date	Nov 14, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02F2200/04
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A steel piston (1) for a combustion engine, having an upper part in which a ring section (7) with at least one ring groove (8) is arranged, wherein the upper part is adjoined by a lower part that has two opposing skirt wall sections (2), wherein the two skirt wall sections (2) are connected via two mutually opposite case walls (3), wherein a pin bore (4) surrounded by a piston boss (6) is provided in each case wall (3). In one example, there is at least one aperture (14) or at least one recess in the case wall (3) in the region between the piston boss (6) and the skirt wall section (2).

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