Patent application number | Description | Published |
20080202101 | Exhaust treatment system - An exhaust gas treatment system of an internal combustion engine includes a selective catalytic reduction catalyst fluidly connected to the internal combustion engine, a particulate filter fluidly connected downstream of the selective catalytic reduction catalyst, and an induction line configured to direct a portion of a filtered exhaust flow of the internal combustion engine toward an inlet of the engine. | 08-28-2008 |
20080223023 | ENGINE SYSTEM AND METHOD OF PROVIDING POWER THEREIN - An engine system includes an internal combustion engine having an exhaust system, and an air supply passage connecting therewith. The engine system includes an auxiliary regeneration device coupled with the exhaust system, and an auxiliary power turbine coupled with the exhaust system and positioned downstream the auxiliary regeneration device. A method of providing power in an internal combustion engine system is further provided, including turning off the engine, moving gases through an exhaust system of the engine, including combusting a fuel in the exhaust system with an auxiliary regeneration device, and operating a power source separate from the engine by rotating an auxiliary power turbine via the gases moving through the exhaust system. | 09-18-2008 |
20080302093 | MULTI-ENGINE SYSTEM WITH ON-BOARD AMMONIA PRODUCTION - A power system is provided having a first power source including at least one engine configured to combust a first air/fuel mixture and produce a first exhaust stream. The fuel of the first air/fuel mixture may be liquefied petroleum gas. The system also has a first exhaust passageway fluidly connected to the first power source and configured to receive the first exhaust stream. In addition, the system has a second power source including at least one engine configured to combust a second fuel/air mixture and produce a second exhaust stream. Furthermore, the system has a second exhaust passageway fluidly connected to the second power source and configured to receive the second exhaust stream. The system further has a first catalyst disposed within the first exhaust passageway to convert at least a portion of the first exhaust stream to ammonia | 12-11-2008 |
20090031702 | Particulate filter - A filter includes a housing including an inlet and an outlet, and the housing includes a first section and a second section. The filter also includes a plurality of parallel channels defined by a plurality of porous walls within the first and second sections of the housing. The plurality of channels extend between the inlet and the outlet. The plurality of channels in the first section of the housing includes at least one first channel including an inlet stopper and at least one second channel including an outlet stopper. The plurality of channels in the second section of the housing including at least one open channel. | 02-05-2009 |
20090035194 | Exhaust treatment system with an oxidation device for NO2 control - An exhaust treatment system includes an oxidation device having a plurality of channels through which a flow of exhaust flows. A first portion of the channels of the oxidation device are coated with catalytic material for converting NO to NO | 02-05-2009 |
20090035195 | Exhaust treatment system with NO2 control - An exhaust treatment system includes a catalyzed particulate filter disposed in a first passageway and configured to receive a first portion of a flow of exhaust. The catalyzed particulate filter is at least partially coated with a catalytic material for converting NO to NO | 02-05-2009 |
20090188235 | Exhaust reduction system having oxygen and temperature control - An exhaust system for use with an engine is disclosed. The exhaust system may have a first treatment device situated to receive a flow of exhaust and convert a first constituent of the exhaust to a second constituent, and a second treatment device located downstream of the first treatment device to reduce the first and second constituents. The exhaust system may also have a sensor configured to generate a signal indicative of one of a temperature and an oxygen concentration of the exhaust, and a controller in communication with the sensor. The controller may be configured to vary the other of the temperature and the oxygen concentration based on the signal such that a desired amount of the first constituent is converted to the second constituent by the first treatment device prior to reduction by the second treatment device. | 07-30-2009 |
20090193794 | Exhaust system implementing SCR and EGR - An exhaust system for use with an engine is disclosed. The exhaust system may have an exhaust passageway, a reduction catalyst located within the exhaust passageway, and a particulate filter located within the exhaust passageway upstream of the reduction catalyst. The exhaust system may also have an oxidation catalyst located within the exhaust passageway upstream of the reduction catalyst to provide a desired ratio of NO:NO | 08-06-2009 |
20090205321 | Exhaust system implementing selective catalyst flow control - An exhaust system for use with an engine is disclosed. The exhaust system may have a first treatment device configured to receive a flow of exhaust from the engine and convert a first constituent of the exhaust to a second constituent. The exhaust system may also have a second treatment device located downstream of the first treatment device and configured to reduce the first constituent and the second constituent. The exhaust system may further have a flow regulator configured to selectively vary a rate of exhaust passing through the first treatment device, and a controller configured to operate the flow regulator such that a desired amount of the first constituent and the second constituent is received by the second treatment device. | 08-20-2009 |
20090241540 | System for recovering engine exhaust energy - A system for recovering engine exhaust energy is provided. The system includes an exhaust system including a first exhaust branch and a second exhaust branch. The system includes a first and a second group of exhaust valves associated with a plurality of engine cylinders. The system also includes an energy recovering assembly. The system further includes a control mechanism configured to control at least one of the first and second groups of exhaust valves according to a determined timing strategy based on at least one engine operating parameter. | 10-01-2009 |
20090277159 | Selective Catalytic Reduction Using Controlled Catalytic Deactivation - An exhaust treatment control system includes a controller configured to determine a value representative of a NO | 11-12-2009 |
20090293463 | Exhaust system having thermophoretic particulate agglomerator - An exhaust system for use with a combustion engine is disclosed. The exhaust system may have a passage connected to receive exhaust from the combustion engine, and a cooling device located external to the passage to create a thermal gradient across a flow area of the passage that causes particulates within the exhaust to agglomerate on a wall of the passage. The exhaust system may also have a filtration device located to separate agglomerated particulates from the exhaust. | 12-03-2009 |
20100154392 | Adjusting nitrogen oxide ratios in exhaust gas - A method of adjusting a ratio of NO to NO | 06-24-2010 |
20110154819 | SYSTEM FOR RECOVERING ENGINE EXHAUST ENERGY - A system for recovering engine exhaust energy is provided. The system includes an exhaust system including a first exhaust branch and a second exhaust branch. The system includes a first and a second group of exhaust valves associated with a plurality of engine cylinders. The system also includes an energy recovering assembly. The system further includes a control mechanism configured to control at least one of the first and second groups of exhaust valves according to a determined timing strategy based on at least one engine operating parameter. | 06-30-2011 |
20120042639 | MULTI-ENGINE SYSTEM WITH ON-BOARD AMMONIA PRODUCTION - A power system is provided having a first power source including at least one engine configured to combust a first air/fuel mixture and produce a first exhaust stream. The fuel of the first air/fuel mixture may be liquefied petroleum gas. The system also has a first exhaust passageway fluidly connected to the first power source and configured to receive the first exhaust stream. In addition, the system has a second power source including at least one engine configured to combust a second fuel/air mixture and produce a second exhaust stream. Furthermore, the system has a second exhaust passageway fluidly connected to the second power source and configured to receive the second exhaust stream. The system further has a first catalyst disposed within the first exhaust passageway to convert at least a portion of the first exhaust stream to ammonia | 02-23-2012 |
20120102947 | SYSTEM FOR RECOVERING ENGINE EXHAUST ENERGY - A system for recovering, engine exhaust energy is provided. The system includes an exhaust system including a first exhaust branch and a second exhaust branch. The system includes a first and a second group of exhaust valves associated with a plurality of engine cylinders. The system also includes an energy recovering assembly. The system further includes a control mechanism configured to control at least one of the first and second groups of exhaust valves according to a determined timing strategy based on at least one engine operating parameter. | 05-03-2012 |