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US 8,474,304 B2Granted
Device for the determination of the concentration of solid particles
AssigneeAVL List GmbH
InventorsFranz Knopf, Helmut Pongratz, Alexander Bergmann
Life of this patent
Estimating the term…
Abstract
A device for determination of solid particle concentration includes a primary diluter (6), a downstream heated evaporator (7), a secondary diluter (8) downstream of the evaporator (7) and a particle counter (5). The secondary diluter (8) is a porous tube diluter and is mounted between the outlet of the evaporator (7) and a stabilization chamber (14), from which the sample flow is diverted to the particle counter (5).
Claims7
A device for the determination of the concentration of solid particles in a particle-loaded gas stream, comprising:
- a primary diluter for mixing a sample flow diverted from the gas stream with a substantially particle-free diluting gas,
- a heated evaporator downstream of the primary diluter,
- a secondary diluter downstream of the heated evaporator for mixing the sample flow with additional substantially particle-free diluting gas, said secondary diluter being connected to the heated evaporator by a thermally insulated sample line and comprising a porous tube mounted between the evaporator and a stabilization chamber, and
- a particle counter downstream of the secondary diluter.
1 more element
Dependencies are inferred from the claim text.