Method and device for producing a directed gas jet

US6390115B1 · kind B1 · utility

Assignee

• GSF-Forshungszentrum für Umwelt und Gesundheit, GmbH · DE

Inventors

• Egmont Rohwer
• Ralf Zimmermann · Bensberg, DE
• Hans Heger · Munich, DE
• Ralph Dorfner · Oberding, DE
• Ulrich Boesl · Landshut, DE
• Antonius Kettrup · Bad Staffelstein, DE

Key dates

• Filing date: Nov 17, 2000
• Grant date: May 21, 2002
• Expiry date: Nov 17, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/87692
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In a method for producing a directed gas jet wherein a guided sample gas beam is generated and an auxiliary gas beam is generated and directed and guided in the same direction as, but separated from, the sample gas beam, a pulsed carrier gas stream is generated and combined with the sample gas beam such that the sample gas beam is separated into spaced pulses which are embedded between the axially spaced pulses of the carrier gas beam and the carrier gas beam with the sample gas beam embedded therein is combined with the auxiliary gas beam such that the carrier and sample gas beam is radially enveloped by the auxiliary gas beam to from the directed gas jet of a carrier and sample gas pulses enveloped in the auxiliary gas beam.