Patent · US Active

Cooling channel having dam and funnel

US11053885B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

KS Kolbenschmidt GmbH · DE

Inventors

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

Key dates

Filing date	Dec 19, 2017
Grant date	Jul 6, 2021
Priority date	—
Expiry date	Dec 19, 2037

Classification

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

Abstract

A piston for an internal combustion engine includes a piston upper part and a piston lower part having a cooling channel including at least one inlet opening. A dam-type elevation is formed in the region of the at least one inlet opening through forging of the dam elevation in the cooling channel portion in the piston lower part. In one example, a funnel-shaped inlet contour is formed in the inlet opening by pre-forging. In one example, a V-shaped element is formed in the piston upper part cooling chamber portion in alignment with the inlet opening and used as a coolant jet splitter.

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