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:
Apr. 25, 2017
Filed:
Nov. 19, 2014
Robert J Jerger, Dexter, MI (US);
James J Daley, Jackson, MI (US);
Joseph M Dekar, Jackson, MI (US);
Andrew Brocker, Brighton, MI (US);
Wei-jun Yang, Ann Arbor, MI (US);
Xuefei Chen, Novi, MI (US);
Brett Schubring, Macomb, MI (US);
Lydell S Powell, West Bloomfield, MI (US);
Robert J Jerger, Dexter, MI (US);
James J Daley, Jackson, MI (US);
Joseph M Dekar, Jackson, MI (US);
Andrew Brocker, Brighton, MI (US);
Wei-Jun Yang, Ann Arbor, MI (US);
Xuefei Chen, Novi, MI (US);
Brett Schubring, Macomb, MI (US);
Lydell S Powell, West Bloomfield, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
An exhaust gas flow concentration system for a catalyst includes an inlet that receives a flow of exhaust gas from an exhaust pipe of an exhaust system, a stationary tube in communication with the inlet and disposed upstream from the catalyst, and an extension tube in communication with the stationary tube and disposed upstream from the catalyst, where the extension tube includes a cross-sectional area less than a cross-sectional area of the catalyst. A displacement device is coupled to the extension tube and is configured to (i) displace the extension tube relative to the stationary tube downstream towards the catalyst as a temperature in the exhaust system decreases away from a light-off temperature of the catalyst and (ii) retract the extension tube relative to the stationary tube upstream away from the catalyst when the temperature in the exhaust system reaches the light-off temperature of the catalyst.