Patent · US Expired

Diesel engine piston

US6877473B2 · kind B2 · utility

11Cited by

11References

3Claims

0Family size

Assignee

Mahle GmbH · DE

Inventors

Ulrich Bischofberger · Eßlingen, DE
Wilfried Sander · Neckarsulm, DE
Michael Ullrich · Heubach, DE

Key dates

Filing date	May 22, 2001
Grant date	Apr 12, 2005
Priority date	—
Expiry date	May 22, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49263
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a piston for a diesel engine comprising a combustion cavity. The piston crown and the cavity are plasma-sprayed with a coating. The aim of the invention is to produce the coating in a cost-effective manner. To achieve this, the layer thickness of the coating is uneven, being thicker in the border region of the cavity.

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