Plasma spray nozzle with internal injection

US9309587B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Mario Felkel · Berlin, DE
• Heiko Gruner · Stuttgart, DE
• Francis-Jurjen Ladru · Berlin, DE

Key dates

• Filing date: Aug 7, 2013
• Grant date: Apr 12, 2016
• Expiry date: Oct 12, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05H1/3484
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A plasma spray nozzle is provided. Owing to their high degree of wear, previous plasma spray nozzles were not suitable for the coating of components for which long coating times were necessary. The coating times may be reduced considerably by the triple injection of powder into the inner channel through the plasma spray nozzle.