Patent · US Active

Piston, especially cooling channel piston, comprising three friction-welded zones

US8011288B2 · kind B2 · utility

8Cited by

8References

6Claims

0Family size

Assignee

KS Kolbenschmidt GmbH · DE

Inventors

Volker Gniesmer · Alfeld, DE
Gerhard Luz · Bietigheim-Bissingen, DE
Emmerich Ottlickzky · Forchtenberg, DE

Key dates

Filing date	Sep 17, 2005
Grant date	Sep 6, 2011
Priority date	—
Expiry date	Apr 29, 2027

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02F3/22
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A piston, especially a cooling channel piston of an internal combustion engine, has an upper part and a lower part which can be produced separately from each other and subsequently be assembled. The upper part has at least three radially peripheral joining webs and the lower part likewise at least three radially peripheral joining webs. During assembly, the webs are put together and connect the upper part firmly to the lower part.

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