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. 11, 2012
Filed:
Feb. 13, 2007
Paul Richard Phillips, Royston, GB;
Martyn Vincent Twigg, Cambridge, GB;
Paul Richard Phillips, Royston, GB;
Martyn Vincent Twigg, Cambridge, GB;
Johnson Matthey Public Limited Company, London, GB;
Abstract
An exhaust system which has a catalysed soot filter (CSF), a control unit, and a catalyzed sensor. The exhaust system, controllable by the control unit, can increase hydrocarbon (HC) and/or carbon monoxide (CO) content in an exhaust gas flowing into the CSF resulting in combustion of the HC and/or CO in the CSF, a temperature increase of the CSF, and combustion of particulate matter collected on the CSF. The catalyzed sensor is disposed between an engine manifold and the CSF, and combusts CO and/or HC in the exhaust gas and inputs the control unit with a datum correlating with an enthalpy of combustion of HC and/or CO in the exhaust gas, thereby controlling the content of the combustible HC and/or CO in the exhaust gas flowing into the CSF. The catalysed sensor is the only catalysed component in the exhaust system disposed between the engine and the CSF.