Patent application number | Description | Published |
20110162347 | Synergistic SCR / DOC Configurations for Lowering Diesel Emissions - A motor-vehicle engine system comprises a first DOC configured to receive exhaust from an engine and an SCR device coupled downstream of the first DOC in a flow direction of the exhaust. The system further comprises a second DOC coupled downstream of the SCR device. The system takes advantage of hydrocarbon sorption in the SCR catalyst that is a function of temperature to enable reduced hydrocarbon emissions via oxidation at the second DOC. | 07-07-2011 |
20110162349 | EMISSION SCR NOX AFTERTREATMENT SYSTEM HAVING REDUCED SO3 GENERATION AND IMPROVED DURABILITY - The present invention relates to an emission treatment system for reducing gases from the exhaust of an engine. In at least one embodiment, the emission treatment system includes an exhaust passage for transporting the exhaust from the engine, a selective catalytic reduction (SCR) catalyst disposed within the passage, and an oxidation catalyst disposed in the passage upstream of the SCR catalyst, with the oxidation catalyst having metal, with at least 90 wt. % of the metal comprising palladium (Pd). | 07-07-2011 |
20110206584 | PALLADIUM-CONTANING OXIDATION CATALYST - According to one aspect of the present invention, a palladium-containing oxidation catalyst is provided. In one embodiment, the palladium-containing oxidation catalyst includes a first zone having a first PGM catalyst loading with a platinum (Pt) to palladium (Pd) weight ratio of no greater than 10.0; and a second zone disposed next to the first zone. In another embodiment, the second PGM catalyst loading has a palladium (Pd) to platinum (Pt) weight ratio of no greater than 4.0. | 08-25-2011 |
20120023909 | METHODS AND SYSTEMS FOR AN ENGINE EMISSION CONTROL SYSTEM - Systems and methods are provided for a layered emission control device coupled to an exhaust manifold. Various formulations may be incorporated in a plurality of layers of the device to enable various emission control functions to be grouped within spatial constraints. The layers may be organized to reduce functional interference and improve functional synergy between the various emission control functions. | 02-02-2012 |
20120304751 | METHODS AND SYSTEMS FOR DIAGNOSTICS OF AN EMISSION SYSTEM WITH MORE THAN ONE SCR REGION - Methods and systems for controlling and/or diagnosing an emission control system of a vehicle having a first SCR region upstream of a second SCR region are provided herein. One exemplary method includes, indicating degradation based on a first SCR region performance during a first condition; and indicating degradation based on a second SCR region performance during a second condition, the first condition different than the second condition. In this way, different levels of degradation among different SCR regions may be used to indicate emissions levels have increased above a threshold value, for example. | 12-06-2012 |
20130302232 | METHODS AND SYSTEMS FOR AN ENGINE EMISSION CONTROL SYSTEM - Systems and methods are provided for a layered emission control device coupled to an exhaust manifold. Various formulations may be incorporated in a plurality of layers of the device to enable various emission control functions to be grouped within spatial constraints. For example, a first layer may include a first, oxidizing catalyst, a second layer may include a HC trap, and a third layer may include a second, different oxidizing catalyst, the second layer positioned between the first and third layers. The layers may be organized to reduce functional interference and improve functional synergy between the various emission control functions. | 11-14-2013 |
20140106460 | METHODS AND SYSTEMS FOR DIAGNOSTICS OF AN EMISSION SYSTEM WITH MORE THAN ONE SCR REGION - Methods and systems for controlling and/or diagnosing an emission control system of a vehicle having a first SCR region upstream of a second SCR region are provided herein. One exemplary method includes, indicating degradation based on a first SCR region performance during a first condition; and indicating degradation based on a second SCR region performance during a second condition, the first condition different than the second condition. In this way, different levels of degradation among different SCR regions may be used to indicate emissions levels have increased above a threshold value, for example. | 04-17-2014 |
20140356240 | PARTICULATE FILTER CONTAINING A NICKEL-COPPER CATALYST - A particulate filter for use in a vehicle engine exhaust is provided which includes a catalyst containing a mixture of nickel and copper. The catalyst is impregnated into the filter substrate, which is non-reactive with nickel and copper. When used in a vehicle exhaust gas treatment system, the catalyst on the filter improves soot burn-off at low temperatures, provides improved efficiency in reducing CO and NO | 12-04-2014 |
20150013310 | EMISSION CONTROL SYSTEM INCLUDING AN OXIDATION CATALYST AND SELECTIVE CATALYTIC REDUCTION CATALYST - An emission control system is provided. The emission control system includes an oxidation catalyst having a precious metal loading of less than 100 grams (g)/cubic foot (ft | 01-15-2015 |
Patent application number | Description | Published |
20090055987 | Airflow Headgear for a Welding Helmet - An airflow system is provided for a welding helmet. The airflow system includes an air intake with a filter, a blower, and a battery mounted to the rear of headgear for a welding helmet. A manifold wraps around the side and front of the headgear and directs air from the blower to the front of the headgear. The manifold includes a lower vent for directing air onto a user's face and an upper vent for directing air over a user's head toward the rear of the headgear. The vents are intended to create positive pressure to impede the entry of unfiltered air into the user's breathing zone. The manifold further includes a portion of flexible tubing for adjusting the size of the airflow system in conjunction with adjustment of the headgear diameter. The airflow system generally conforms to the structure and shape of the headgear to maintain a location close to the user's head. | 03-05-2009 |
20090210989 | WELDING HELMET POSITIVE AIR PRESSURING SYSTEM AND METHOD - A method and system for controlling ventilation in a welding helmet is provided. The invention may be adapted to a wide variety of system types, and may reduce or eliminate the need for a shroud or barrier around the head and neck of the welder, of the type used in PAPR systems. The airflow system includes forward and rearward air streams, directed onto the face of the welder, onto the top of the head of the welder, and toward the back of the head of the welder. The air streams help to cool the welder, provide a fresh source of air for breathing, and create a positive pressure system that reduces or excludes entrainment of contaminated external air into the forwardly directed air flow. Certain embodiments may include streams that are filtered, split or redirected via deflectors and conduits to achieve the aforementioned goals. | 08-27-2009 |
20090231423 | VIDEO RECORDING DEVICE FOR A WELDER'S HELMET - A weld recording system mounted in or on a welding helmet is provided. The weld recording system includes a camera assembly unit, a power supply unit, a processor, and removable memory. The weld recording system interfaces with lens control circuitry, an optical sensor, a welding power supply, and a helmet position sensor. Logic is provided for the triggering and recording of video and audio signals, which are eventually stored in a file for future reference. Transmission of signals from one or more welders to a monitoring station for eventual display is presented. An image processing algorithm is provided to combine multiple images with varied exposure times into a visual image of the weld and its surroundings. | 09-17-2009 |
20120085741 | Method and Apparatus for Monitoring Weld Cell - A method and apparatus for monitoring weld cell and related activity is disclosed. The activity is sensed using a variety of sensors, and reported to the controller, or to a remote location. | 04-12-2012 |
20150076120 | NARROW GROOVE WELDING METHOD AND SYSTEM - A system includes a welding torch assembly configured to establish a welding arc between an electrode and workpieces separated by a narrow groove utilizing power from a power supply while moving the electrode radially in a desired pattern by a motion control assembly within the welding torch assembly. The welding torch assembly includes a nozzle through which the electrode is fed and within which the electrode is radially moved. | 03-19-2015 |
Patent application number | Description | Published |
20100108426 | ELECTRO-MECHANICAL PUMP FOR AN AUTOMATIC TRANSMISSION - A drive system for a motor vehicle transmission includes a hydraulic pump including a shaft, an engine, a starter/alternator connected to the shaft, and a drive mechanism for transmitting torque from the engine to the shaft, and for amplifying torque produced by the starter/alternator and transmitting the amplified torque to the engine. | 05-06-2010 |
20100290924 | Nozzle Insert for Boosting Pump Inlet Pressure - A pump assembly includes a pump housing including an inner surface, a pump inlet and an excess flow passage, a filter assembly including a spout extending into the housing, and an insert located within and secured to the housing, and including a first surface spaced from the inner surface and producing therebetween an annular nozzle communicating with said excess flow passage, the nozzle directing a first fluid stream exiting the excess flow passage toward a second fluid stream exiting the spout, the fluid streams flowing toward the pump inlet. | 11-18-2010 |
20130014498 | Variable Displacement Hydraulic Pump ControlAANM Kinch; DerekAACI YpsilantiAAST MIAACO USAAGP Kinch; Derek Ypsilanti MI USAANM Dobson; Mark R.AACI HowellAAST MIAACO USAAGP Dobson; Mark R. Howell MI USAANM Pekarsky; LevAACI W. BloomfieldAAST MIAACO USAAGP Pekarsky; Lev W. Bloomfield MI USAANM Mahapatro; HrudayaAACI CantonAAST MIAACO USAAGP Mahapatro; Hrudaya Canton MI US - A system controlling pressure in a transmission including a variable displacement pump, a circuit carrying fluid from the pump to the transmission, a valve using fluid in said circuit to regulate pressure that controls displacement of the pump, a source of control pressure including an accumulator, a first spring acting with said source causing the valve to change the regulated pressure, and a second spring acting with feedback pressure from said circuit to oppose said change. | 01-17-2013 |
20140093401 | JET PUMP WITH CENTRALIZED NOZZLE - A jet pump that supplies fluid to a transmission pump includes a pump inlet, a sump, a fluid source, and a nozzle including an axial passage for carrying fluid from the sump toward the inlet, and a second passage having an arcuate periphery and including an entrance facing a lateral side of the nozzle and connected to the fluid source and an exit communicating with the pump inlet. | 04-03-2014 |