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公开(公告)号：US11834983B2
公开(公告)日：2023-12-05
申请号：US17626222
申请日：2020-07-14
CPC分类号： F02B47/04 , F02B7/04 , F02B2275/14
摘要： The disclosure relates to a method for controlling compression ignition combustion phasing in an internal combustion engine, the method comprising providing a high heat of vaporization fuel charge, the high heat of vaporization fuel charge having a latent heat of vaporization; and directly injecting a spray of the fuel charge into a cylinder of an internal combustion engine during the intake stroke, the internal combustion engine having a gas exchange stage and a combustion stage, the injecting from a single injector and occurring at least immediately after Top Dead Center during the gas exchange stage.
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公开(公告)号：US11649761B1
公开(公告)日：2023-05-16
申请号：US17559288
申请日：2021-12-22
申请人： Caterpillar Inc.
摘要： An exhaust heater system includes an exhaust heater and an air supply tube disposed within the exhaust heater. Relatively hot exhaust gas from an engine is directed into the exhaust heater, whereby heat from the exhaust heats the interior of the air supply tube. The heat partially vaporizes liquid methanol injected into the air supply tube. To control the amount of heating, the exhaust can be directed to the air supply tube as well as an exhaust bypass, whereby exhaust directed to the exhaust bypass does not heat the interior of the air supply tube.
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公开(公告)号：US11639683B2
公开(公告)日：2023-05-02
申请号：US17843271
申请日：2022-06-17
申请人： Dolphin N2 Limited
发明人： Robert Morgan , James Eatwell , Andrew Atkins , Adam Gurr
IPC分类号： F02D41/06 , F02B33/22 , F01N3/20 , F01N5/02 , F01N11/00 , F01P3/22 , F02B47/04 , F02D13/02 , F02D19/12 , F02D35/02 , F02D41/00 , F02F7/00 , F02M31/04 , F02M31/08
摘要： A split cycle internal combustion engine includes a combustion cylinder accommodating a combustion piston and a compression cylinder accommodating a compression piston. The engine also includes a controller arranged to receive an indication of a parameter associated with the combustion cylinder and/or a fluid associated therewith and to control an exhaust valve of the combustion cylinder in dependence on the indicated parameter to cause the exhaust valve to close during the return stroke of the combustion piston, before the combustion piston has reached its top dead centre position (TDC), when the indicated parameter is less than a target value for the parameter; and close on completion of the return stroke of the combustion piston, as the combustion piston reaches its top dead centre position (TDC), when the indicated parameter is equal to or greater than the target value for the parameter.
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4.发明授权公开(公告)号：US11359559B2
公开(公告)日：2022-06-14
申请号：US17500322
申请日：2021-10-13
发明人： Leslie Bromberg , Daniel R. Cohn , John B. Heywood
IPC分类号： F02D41/00 , F02D41/40 , F02D19/08 , F02B47/04 , F02B51/00 , F02D19/12 , F02D35/02 , F02M25/14 , F02M37/00 , F02D19/06 , F02B17/00 , F02D13/02 , F02D41/04 , F02D41/30
摘要： Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.
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公开(公告)号：US11261391B1
公开(公告)日：2022-03-01
申请号：US14686953
申请日：2015-04-15
发明人： John E. Dec , Yi Yang
摘要： A fuel or fuel blending agent for an internal combustion engine includes a ketone compound that is a C4 to C10 branched acyclic ketone, cyclopentanone, or a derivative of cyclopentanone. The ketone compound may be blended with a majority portion of a fuel selected from the group consisting of: gasoline, diesel, alcohol fuel, biofuel, renewable fuel, Fischer-Tropsch fuel, or combinations thereof. The ketone compound may be derived from biological sources. A method for powering an internal combustion engine with a fuel comprising the ketone compound is also provided.
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6.发明授权公开(公告)号：US11168625B2
公开(公告)日：2021-11-09
申请号：US17246578
申请日：2021-04-30
发明人： Leslie Bromberg , Daniel R. Cohn , John B. Heywood
IPC分类号： F02D41/00 , F02D19/08 , F02B47/04 , F02B51/00 , F02D19/12 , F02D35/02 , F02M25/14 , F02M37/00 , F02D19/06 , F02B17/00 , F02D13/02 , F02D41/04 , F02D41/30
摘要： Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.
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7.发明授权公开(公告)号：US11067012B2
公开(公告)日：2021-07-20
申请号：US17147905
申请日：2021-01-13
发明人： Leslie Bromberg , Daniel R. Cohn , John B. Heywood
IPC分类号： F02D41/00 , F02D19/08 , F02B51/00 , F02D19/12 , F02D35/02 , F02M25/14 , F02M37/00 , F02D19/06 , F02B17/00 , F02D13/02 , F02D41/04 , F02D41/30 , F02B47/04
摘要： Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.
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8.发明申请公开(公告)号：US20210131367A1
公开(公告)日：2021-05-06
申请号：US17147905
申请日：2021-01-13
发明人： Leslie Bromberg , Daniel R. Cohn , John B. Heywood
IPC分类号： F02D41/00 , F02B47/04 , F02B51/00 , F02D19/08 , F02D19/12 , F02D35/02 , F02M25/14 , F02M37/00 , F02D19/06 , F02B17/00 , F02D13/02 , F02D41/04 , F02D41/30
摘要： Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.
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9.发明申请公开(公告)号：US20200248089A1
公开(公告)日：2020-08-06
申请号：US16263053
申请日：2019-01-31
发明人： Charles Shanahan , Michel Nuckols
摘要： The present disclosure relates to methods and fuel compositions for reducing or eliminating fuel injector deposits in high pressure gasoline engines. The fuel compositions include gasoline and a synergistic combination of a fuel injector clean-up mixture including a heterocyclic amine, diamine, or open chain derivative thereof and a hydrocarbyl substituted dicarboxylic anhydride derivative selected from a diamide, acid/amide, acid/ester, diacid, amide/ester, diester, and imide.
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10.发明申请公开(公告)号：US20200072102A1
公开(公告)日：2020-03-05
申请号：US16121236
申请日：2018-09-04
发明人： Huifang Shao , Joseph W. Roos , Joseph E. Remias
IPC分类号： F01N3/021 , F01N11/00 , B01D46/42 , C09D1/00 , C10L10/06 , F02B47/04 , F02D41/02 , C10M163/00
摘要： Gasoline Direct Injection (GDI) engines require gasoline particulate filters (GPFs) as a key component of the emissions control system to reduce particulate emissions. GPFs are known to have poor initial performance, with performance increasing after the filter develops a cake. This poor initial performance make it impossible to accurately assess vehicle emissions performance at the mileage requirements for vehicle certification. Compositions and methods are disclosed to improve filtration efficiency in a fresh or low mileage GPF.
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