Patent application number | Description | Published |
20100313858 | COLD START GAS COMPONENT RETENTION SYSTEM IN EGR CIRCUIT WITH RECIRCULATED GAS CONTROL - Methods and systems are provided for managing exhaust gases from an internal combustion engine. One example exhaust system may include an EGR line configured to route a selected amount of exhaust gases from an exhaust passage of the engine toward an intake passage of the engine. A gas component reduction element may be located on the EGR line, and may be configured to reduce a quantity of one or more selected components from the selected amount of exhaust gases. A treated exhaust line may be coupled with the EGR line, and may be configured to route a first portion of the selected amount of the exhaust gases from the gas component reduction element to pass into the intake passage of the engine, and to allow a second portion of the selected amount of the exhaust gases to the atmosphere. | 12-16-2010 |
20110072783 | SYSTEM AND METHOD FOR REGENERATING A PARTICULATE FILTER ACCOMPANIED BY A CATALYST - A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst. | 03-31-2011 |
20110072784 | SYSTEM AND METHOD FOR REGENERATING A PARTICULATE FILTER - A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst. | 03-31-2011 |
20110072787 | FUEL CONTROL FOR SPARK IGNITED ENGINE HAVING A PARTICULATE FILTER SYSTEM - A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst. | 03-31-2011 |
20110072794 | SYSTEM AND METHOD FOR REGENERATING A PARTICULATE FILTER FOR A DIRECT INJECTION ENGINE - A method for regenerating a particulate filter is disclosed. In one example, oxygen is pumped from the intake system of a direct injection turobocharged gasoline engine to the exhaust system by a compressor. The oxygen is introduced to a particulate filter at a location upstream from the particulate filter. In this way, regeneration of a particulate filter may be accomplished without disturbing the chemistry of a three-way catalyst located in the exhaust system upstream of the particulate filter. | 03-31-2011 |
20110072795 | METHOD FOR REGENERATING A PARTICULATE FILTER FOR A BOOSTED DIRECT INJECTION ENGINE - A method for regenerating a particulate filter is disclosed. In one example, oxygen is pumped from the intake system of a direct injection turobocharged gasoline engine through a cylinder and into the exhaust system by a compressor. In this way, regeneration of a particulate filter may be accomplished without an auxiliary air supply. | 03-31-2011 |
20110072803 | METHOD FOR ADJUSTING BOOST PRESSURE WHILE REGENERATING A PARTICULATE FILTER FOR A DIRECT INJECTION ENGINE - A method for regenerating a particulate filter is disclosed. In one example, oxygen is pumped from the intake system of a direct injection turbocharged gasoline engine to the exhaust system by a compressor. The oxygen is introduced to a particulate filter at a location upstream from the particulate filter and downstream of a three-way catalyst. The oxygen may be regulated in part by adjusting compressor boost pressure in response to a state of particulate filter regeneration. Further, in one embodiment, engine NOx can be controlled by EGR. | 03-31-2011 |
20110072804 | SYSTEM FOR REGENERATING A PARTICULATE FILTER AND CONTROLLING EGR - A system for regenerating a particulate filter is disclosed. In one example, oxygen is pumped from the intake system of a direct injection turbocharged gasoline engine to the exhaust system by a compressor. Simultaneously, exhaust gases may be pumped from the exhaust system to the intake system for the purpose of reducing NOx while regenerating a particulate filter. | 03-31-2011 |
20110073070 | METHOD FOR CONTROLLING SPARK FOR PARTICULATE FILTER REGENERATING - A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine spark is controlled such that soot held by a particulate filter may be oxidized even during low engine loads. | 03-31-2011 |
20110073088 | METHOD FOR CONTROLLING FUEL OF A SPARK IGNITED ENGINE WHILE REGENERATING A PARTICULATE FILTER - A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst. | 03-31-2011 |
20110253092 | OIL DRAIN SYSTEM BYPASS - A system and method are provided for increasing heating of engine oil during a cold start. In one example, engine oil is returned directly to the oil pump inlet, thus bypassing the sump. In this way, a smaller volume of oil receives more heat and is used for lubricating engine components during a cold start, thus providing reduced friction earlier than otherwise possible. | 10-20-2011 |
20110265762 | Method and System for Pre-Ignition Control - Methods and systems are provided to address engine pre-ignition. One or more cylinders are alternately rich and lean operated for a duration to reduce engine thermal loading while maintaining an exhaust air-to-fuel ratio around stoichiometry. | 11-03-2011 |
20120124995 | EXHAUST SYSTEM FOR INTERNAL COMBUSTION ENGINES WITH PARTICLE FILTER - An exhaust system for an internal combustion engine is provided. The system comprises an exhaust tract which is connectable to an outlet side of the internal combustion engine, at least one catalytic converter arranged in the exhaust tract downstream of the engine, a particle filter downstream of the at least one catalytic converter, and a secondary-air inlet port provided in the exhaust tract upstream of the particle filter for introducing compressed secondary air into the exhaust tract via at least one flutter valve. In this way, additional oxygen may be supplied to the particulate filter to perform filter regeneration. | 05-24-2012 |
20120174892 | METHOD FOR CONTROLLING SPARK FOR PARTICULATE FILTER REGENERATING - A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine spark is controlled such that soot held by a particulate filter may be oxidized even during low engine loads. | 07-12-2012 |
20120210699 | METHOD FOR OPERATING A SPARK-IGNITION INTERNAL COMBUSTION ENGINE WITH EXHAUST GAS AFTERTREATMENT - Embodiments for regenerating a particle filter are provided. In one example, a method for operating a spark-ignition internal combustion engine having a particle filter for collecting and burning soot particles in exhaust gas comprises in order to initiate regeneration of the particle filter, increasing a particle filter temperature T | 08-23-2012 |
20120271531 | Method and System for Pre-Ignition Control - Methods and systems are provided to address engine pre-ignition. One or more cylinders are alternately rich and lean operated for a duration to reduce engine thermal loading while maintaining an exhaust air-to-fuel ratio around stoichiometry. | 10-25-2012 |
20120304623 | EXHAUST GAS AFTERTREATMENT DEVICE AND METHOD FOR A GASOLINE ENGINE - Embodiments for an exhaust gas aftertreatment device are provided. In one example, an exhaust gas aftertreatment device for a gasoline engine comprises a filter body with porous filter walls through which exhaust gas flows to remove soot, the porous filter walls containing a first catalyst material and having a coating of a second catalyst material on partial areas of the filter walls. In this way, a particulate filter and catalyst may be provided in a common aftertreatment device. | 12-06-2012 |
20130092108 | Method for Warming an Internal Combustion Engine, and Internal Combustion Engine - The disclosure relates to a method for expediting warm up of an internal combustion engine cylinder block and engine oil utilizing an existing oil coolant circuit. A method for warming up an internal combustion engine with at least one cylinder, a cylinder block which is formed by an upper crankcase half mounted to a lower crankcase half, said lower crankcase half containing an oil sump which is fed, via a supply line, by a coolant jacket, an inlet side of said coolant jacket supplied in turn with oil via the oil sump by an oil pump, the method comprising: releasing oil from the coolant jacket via gravity to reduce a cooling capacity of the internal combustion engine. | 04-18-2013 |
20130092124 | METHOD FOR REDUCING THE PARTICLE EMISSIONS OF A SPARK-IGNITION INTERNAL COMBUSTION ENGINE WITH DIRECT INJECTION, AND INTERNAL COMBUSTION ENGINE FOR CARRYING OUT SUCH A METHOD - A method for reducing the particle emissions of a spark-ignition, direct-injection internal combustion engine is provided. The method comprises operating at least one cylinder superstoichiometrically, responsive to an injector coking level and sufficiently high cylinder temperature, for a duration to increase oxidation of coking residues. | 04-18-2013 |
20130255631 | OPERATION OF AN INTERNAL COMBUSTION ENGINE - A method for an engine may comprise during a first condition comprising decreased scavenging, adjusting fuel injection based on a more-upstream air-fuel ratio, and during a second condition comprising increased scavenging, adjusting fuel injection based on one or more more-downstream air-fuel ratios and not based on the more-upstream air-fuel ratio. During the first condition, adjusting fuel injection may be further based on the one or more more-downstream air-fuel ratios. | 10-03-2013 |
20130276747 | INTERNAL COMBUSTION ENGINE WITH PARTIAL DEACTIVATION AND METHOD FOR THE OPERATION OF AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - A system is provided for an internal combustion engine comprising, at least two cylinders wherein the at least two cylinders form at least two groups, wherein each group comprises at least one cylinder, the at least one cylinder of at least one group being formed as a cylinder which can be activated in a load-dependent manner and which is deactivated if a predefined load is undershot. The at least two groups are characterized by different cylinder volumes, the at least one cylinder of a first group having a lesser cylinder volume and the at least one cylinder of a second group having a greater cylinder volume; and the at least one cylinder of the second group comprises an activatable and deactivatable cylinder. Use of the first cylinder group, and deactivation of the second cylinder group during partial loads increases engine efficiency and fuel economy. | 10-24-2013 |
20130276749 | AUTO-IGNITION INTERNAL COMBUSTION ENGINE WITH PARTIAL DEACTIVATION AND METHOD FOR THE OPERATION OF AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - Methods and systems are provided for improving the operation of a multi-cylinder auto-ignition internal combustion engine. By configuring the cylinders in multiple groups based on compression ratios, and operating the cylinders in a load-dependent manner, fuel consumption may be improved. | 10-24-2013 |
20130276752 | METHOD FOR OPERATING A SPARK IGNITION INTERNAL COMBUSTION ENGINE HAVING AT LEAST TWO CYLINDERS - A method is disclosed for operating a spark ignition engine, comprising: discharging exhaust gases via an exhaust system comprising exhaust pipes from the at least two cylinders coming together to form an exhaust manifold; and initiating autoignition with exhaust gas from a first, exhaust-gas-supplying cylinder, which is discharged from the first cylinder into the exhaust system, the exhaust gas is introduced into an adjacent, exhaust-gas-receiving cylinder via the exhaust system. Exhaust gas from the first cylinder mixes with the air-fuel mixture of an adjacent cylinder raising the temperature therein. Under high loads the higher temperature and density of the aircharge is suitable to undergo autoignition. | 10-24-2013 |
20130276754 | SPARK-IGNITION INTERNAL COMBUSTION ENGINE HAVING WALL PORTION SEPARATING AT LEAST THE TWO CYLINDERS - The application relates to spark initiation under varied aircharge density and composition. An engine is disclosed comprising at least two cylinders with spark plugs therein; an integrated exhaust manifold, the integrated exhaust manifold having a wall portion and an adjustable shutoff element within the wall portion wherein the wall portion divides exhaust pipes of the at least two cylinders and the adjustable shutoff element allows exhaust gas from a first cylinder into an exhaust pipe of an adjacent cylinder. Hot exhaust gas may be taken into an adjacent cylinder serving as ignition gas and allowing the engine of the present disclosure to undergo spark ignition at low loads, or autoignition at high loads. | 10-24-2013 |
20130276755 | AUTO-IGNITION INTERNAL COMBUSTION ENGINE WITH PARTIAL DEACTIVATION AND METHOD FOR THE OPERATION OF AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - Methods and systems are provided for optimizing the operation of a multi-cylinder auto-ignition internal combustion engine. By configuring the cylinders in multiple groups based on compression ratios, and operating the cylinders in a load-dependent manner, fuel consumption may be optimized. | 10-24-2013 |
20130276759 | INTERNAL COMBUSTION ENGINE WITH PARTIAL DEACTIVATION AND METHOD FOR THE OPERATION OF AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - A system is provided for an internal combustion engine comprising, at least two cylinders wherein the at least two cylinders form at least two groups, wherein each group comprises at least one cylinder, the at least one cylinder of at least one group being formed as a cylinder which can be activated in a load-dependent manner and which is deactivated if a predefined load is undershot. The at least two groups are characterized by different compression ratios, the at least one cylinder of a first group having a higher compression ratio and the at least one cylinder of a second group having a lower compression ratio and the at least one cylinder of the second group comprises an activatable and deactivatable cylinder. Use of the first cylinder group, and deactivation of the second cylinder group during partial loads increases engine efficiency and fuel economy. | 10-24-2013 |
20130332052 | METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE - The disclosure relates to a method for operating an internal combustion engine having a plurality of cylinders, the method comprising, during one working cycle, distributing fuel for each cylinder of the plurality of cylinders among a plurality of injection processes according to settable split factors which respectively define a setpoint fuel mass and/or injection duration and time setting of each respective injection process for the plurality of individual injection processes, wherein random variation is carried out for at least one injection process. | 12-12-2013 |
20140034008 | INTERNAL COMBUSTION ENGINE WITH OIL-COOLED CYLINDER BLOCK AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - Embodiments for selectively filling a cylinder block cooling jacket with oil are provided. In one example, a control unit may be rotated among a plurality of working positions to open up and/or block flow of oil into and out of the cylinder block cooling jacket. | 02-06-2014 |
20140305122 | INTERNAL COMBUSTION ENGINE WITH A CYLINDER HEAD HAVING AN INTEGRATED DRAINAGE CHANNEL AND METHOD FOR PRODUCING THE INTERNAL COMBUSTION - An internal combustion engine is provided. The engine includes a cylinder head having a cylinder having an exhaust valve opening and an intake valve opening, an intake port in fluidic communication with the intake valve opening and configured to flow intake air to the cylinder through the intake valve opening, and a condensate drainage channel extending into a wall of the intake port and including an inlet positioned downstream of an outlet, the inlet positioned vertically above the outlet. | 10-16-2014 |
20150053190 | FUEL CONTROL FOR SPARK IGNITED ENGINE HAVING A PARTICULATE FILTER SYSTEM - A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst. | 02-26-2015 |