The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 2016
Filed:
May. 23, 2012
William Martin Silvis, Ann Arbor, MI (US);
James Williamson, Pinckney, MI (US);
Gerald Marek, Pinckney, MI (US);
Douglas Edward Miller, Jr., Britton, MI (US);
William Martin Silvis, Ann Arbor, MI (US);
James Williamson, Pinckney, MI (US);
Gerald Marek, Pinckney, MI (US);
Douglas Edward Miller, Jr., Britton, MI (US);
AVL TEST SYSTEMS, INC., Plymouth, MI (US);
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.