Patent · US Active

Exhaust sampling system and method for water vapor management

US9297726B2 · kind B2 · utility

3Cited by
28References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 23, 2012
Grant dateMar 29, 2016
Priority date
Expiry dateSep 6, 2034

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2001/2264
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Disclosed is an exhaust sampling system including a plurality of exhaust sampling system zones. The zones are, at least, a sampling conduit, a fill circuit, and a read circuit. A controller is programmed to predict a minimum dilution ratio to avoid condensation in one of the exhaust sampling system zones. The controller is further programmed to run a test procedure in which a sample of exhaust is diluted with a make-up gas at a selected minimum dilution ratio that is greater than or equal to the predicted minimum dilution ratio. Further disclosed are methods of predicting whether condensation occurs during a test procedure.

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