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:
Dec. 29, 2015
Filed:
Feb. 28, 2013
Tenneco Automotive Operating Company Inc., Lake Forest, IL (US);
Dana Kregling, Battle Creek, MI (US);
Michael Golin, Dexter, MI (US);
Guanyu Zheng, Grass Lake, MI (US);
Alan Brockman, Ann Arbor, MI (US);
Adam J. Kotrba, Laingsburg, MI (US);
Timothy P. Gardner, Canton, MI (US);
Andrey Factor, Farmington Hills, MI (US);
Tenneco Automotive Operating Company Inc., Lake Forect, IL (US);
Abstract
An exhaust system including a selective catalytic reduction (SCR) component and an oxidation catalyst component. The exhaust system also includes an exhaust treatment fluid injection system for dispersing an exhaust treatment fluid into an exhaust stream at a location adjacent either the SCR component or the oxidation catalyst component, wherein the exhaust treatment fluid injection device includes a common rail that provides the exhaust treatment fluid under pressure to a plurality of injectors that dose the exhaust treatment fluid into the exhaust stream. The exhaust treatment fluid injection device also includes a return rail for returning unused exhaust treatment fluid to the fluid source. Each of the common rail and return rail can be configured to allow drainage of the exhaust treatment fluid as a freeze-protection feature.