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:
Nov. 28, 2006
Filed:
Mar. 28, 2003
Gerald Marek, Ann Arbor, MI (US);
Norbert Kreft, Ann Arbor, MI (US);
Gerald Marek, Ann Arbor, MI (US);
Norbert Kreft, Ann Arbor, MI (US);
AVL North America Inc., Plymouth, MI (US);
Abstract
An emission sampling system includes an exhaust gas probe for sampling exhaust gas. A dilution gas source provides a dilution gas, and a mixing device is in fluid communication with the exhaust gas probe and the dilution gas source to mix the sampled exhaust gas and the dilution gas to form a diluted exhaust gas. A particulate filter is in fluid communication with the mixing device downstream therefrom. A dilution temperature conditioning device is arranged between the dilution gas source and the mixing device for obtaining a desired dilution gas temperature. A temperature sensor is arranged in the sampling system for producing a temperature signal corresponding to a temperature of fluid flowing through the sampling system. A controller is connected to the temperature sensor for processing the temperature signal and determining a filter temperature from the temperature signal. The controller commands the conditioning device in response to the filter temperature.