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:
Aug. 16, 2016
Filed:
Jun. 15, 2012
Hamid Sayer, Newport News, VA (US);
Michael J. Hornby, Wiliiamsburg, VA (US);
Perry Robert Czimmek, Williamsburg, VA (US);
Christopher Lee Szymanski, Winsor, VA (US);
Hamid Sayer, Newport News, VA (US);
Michael J. Hornby, Wiliiamsburg, VA (US);
Perry Robert Czimmek, Williamsburg, VA (US);
Christopher Lee Szymanski, Winsor, VA (US);
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Abstract
A dosing valve for administering a reducing agent into an exhaust stream within an exhaust manifold of an internal combustion engine. The dosing valve includes a valve needle internally coaxial to a valve body and held in a closed position by a force of compressed spring acting axially and held in relation to the valve needle and valve body. The negative impact of varnish and dehydrogenated compounds, or coking products, of hydrocarbon based reducing agents, is substantially reduced or eliminated. Additionally, this includes decreased sensitivity to the negative impact of the precipitates and crystals that come out of the solution due to temperature change with urea-based reducing agents.