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AssigneeGSF-Forschungszentrum fur Umwelt und Gesundheit GmbH
InventorsEgmont Rohwer, Ralf Zimmermann, Hans Jörg Heger, Ralph Dorfner, Ulrich Boesl, Antonius Kettrup
Estimating the term…
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.
A method for producing a directed gas jet, comprising the following steps:
A device for producing a directed gas jet from a sample gas beam embedded in an auxiliary gas beam, said device including a central sample gas guide tube, an auxiliary gas guide tube disposed concentrically around said central sample gas tube, said sample gas guide tube having an end with an opening disposed within said auxiliary gas guide tube, means for admitting a sample gas to said sample gas guide tube and means for admitting an auxiliary gas to said auxiliary gas guide tube and including a pulsed valve for controlling the admission of said auxiliary gas to the auxiliary gas guide tube.
Dependencies are inferred from the claim text.