Patent application number | Description | Published |
20090019843 | Approach for Delivering a Liquid Reductant into an Exhaust Flow of a Fuel Burning Engine - An exhaust system for an internal combustion engine for a vehicle is provided. The system comprises an exhaust passage for transporting exhaust gases from the engine; an injector coupled to a wall of the exhaust passage, said injector including an injection axis that is angled relative to a longitudinal axis of a mixing region of the exhaust passage; and a first mixing device arranged within the exhaust passage downstream of the injector within the mixing region, said first mixing device including a plurality of flaps, wherein said plurality of flaps are inclined relative to the longitudinal axis; a second mixing device arranged within the exhaust passage downstream of the first mixing device; wherein the injection axis of the injector intersects the first mixing device. | 01-22-2009 |
20090235650 | Liquid Injector Assembly with a Flanged Connector Connection - A system for injecting from an injector into a duct of an engine system is provided. The system may include a first flange on a duct connection side, a second flange on an injector connection side, a stand-off separating the first flange from the second flange to form an air gap therebetween, and a seal offset from at least one of the first and the second flanges and located within the airgap and between the first flange and the second flange. | 09-24-2009 |
20090313980 | METHOD TO DETECT FUEL VAPORIZER COKING - A method of supplying fuel vapor to an exhaust aftertreatment device of a motor vehicle is provided. The method includes evaporating fuel on a voltage-biased, resistive heating element, the element set in an enclosure configured to release fuel vapor to the exhaust-aftertreatment device, and indicating that the element is degraded if a current flowing through the element is less than a threshold current. In some embodiments, the threshold current is based on the ambient temperature and/or the amount of fuel in the enclosure. | 12-24-2009 |
20100024406 | Liquid Injector Assembly with a Flanged Connector Connection - A system for injecting from an injector into a duct of an engine system is provided. The system may include a first flange on a duct connection side, a second flange on an injector connection side, a stand-off separating the first flange from the second flange to form an air gap therebetween, and a seal offset from at least one of the first and the second flanges and located within the airgap and between the first flange and the second flange. | 02-04-2010 |
20120023912 | CONTAMINATION DETECTION IN FUEL SYSTEM - A system comprises a fuel system for delivering fuel to an engine for combustion and a reductant storage system for delivering reductant to the exhaust stream for an SCR catalyst for NOx reduction. The fuel system further comprises a water separator for separating water-based fluid from fuel in the fuel tank, and a separation reservoir to collect the separated water-based fluid. Based on readings of a water-in-fuel sensor positioned within the reservoir, a type of degradation (e.g., water build-up, high-water-content fuel, mis-filling of the reductant, etc.) may be determined and indicated. | 02-02-2012 |
20120192548 | SYSTEM AND METHOD FOR MONITORING REDUCTANT QUALITY - A method of operating an internal combustion engine having a reductant delivery and storage system in an emission control system, comprising of correlating a change in a monitored operating condition with a refill event to determine whether a reductant-diluting substance has been added to the reductant storage system; and limiting vehicle operation based on the correlation. | 08-02-2012 |
20120241540 | Liquid Injector Assembly with a Flanged Connector Connection - A system for injecting from an injector into a duct of an engine system is provided. The system may include a first flange on a duct connection side, a second flange on an injector connection side, a stand-off separating the first flange from the second flange to form an air gap therebetween, and a seal offset from at least one of the first and the second flanges and located within the airgap and between the first flange and the second flange. | 09-27-2012 |
20130004149 | METHOD TO DETECT FUEL VAPORIZER COKING - A method of supplying fuel vapor to an exhaust aftertreatment device of a motor vehicle is provided. The method includes evaporating fuel on a voltage-biased, resistive heating element, the element set in an enclosure configured to release fuel vapor to the exhaust-aftertreatment device, and indicating that the element is degraded if a current flowing through the element is less than a threshold current. In some embodiments, the threshold current is based on the ambient temperature and/or the amount of fuel in the enclosure. | 01-03-2013 |
20130125997 | METHODS FOR AN EXHAUST FLUID LEVEL SENSOR - Various methods are provided for notifying a vehicle operator of various parameters based on an exhaust fluid level sensor of an exhaust fluid storage tank. In one example, the parameter is a consumption rate of the exhaust fluid. In another example, the parameter is an amount of fluid to be added to the exhaust fluid storage tank. | 05-23-2013 |
20130220280 | DIESEL FUEL SYSTEM CONDITIONING - Methods and systems are provided for conditioning fuel for diesel engine. The system may include a fuel pump located within a fuel tank configured to pump fuel to the diesel engine. The system may also include a fuel filter located outside of the fuel tank operatively located upstream of a flow of fuel from the fuel pump. A method may include directing fuel from inside of the fuel tank through a fuel filter located outside of the fuel tank into a vacuum chamber positioned inside the fuel tank, before directing the fuel to the diesel engine. | 08-29-2013 |
20140026869 | FUEL DELIVERY SYSTEM INCLUDING A HEAT PIPE ASSEMBLY - A fuel delivery system is provided herein. The fuel delivery system may include a fuel tank storing a liquid fuel, a return fuel line including an outlet opening into the fuel tank, and a heat pipe assembly including a first end positioned in a surrounding atmosphere, and a second end positioned at and coupled to the return fuel line. | 01-30-2014 |
20140060699 | VENTING SYSTEM FOR A DIESEL EXHAUST FLUID FILLER PIPE - A venting system for a filler pipe coupled to a diesel exhaust fluid tank in a vehicle is provided. In one example approach the venting system comprises a plurality of cut-outs in an interior surface of the filler pipe along the interior diameter of the filler pipe in a top surface of the filler pipe. | 03-06-2014 |