公开(公告)号：US20230349339A1

公开(公告)日：2023-11-02

申请号：US17734625

申请日：2022-05-02

申请人： Caterpillar Inc.

发明人： Kenth I. Svensson ,  David Todd Montgomery

IPC分类号： F02D41/14 ,  F02D41/00 ,  F02M25/035 ,  F02M25/022

CPC分类号： F02D41/1461 ,  F02D41/1406 ,  F02D41/0027 ,  F02M25/035 ,  F02M25/0227 ,  F02D2250/36

摘要： Operating an internal combustion engine system includes feeding a stream of pressurized intake air to a plurality of cylinders in an engine for combustion with a methanol fuel. An engine parameter indicative of at least one of an exhaust NOx level or a change to the exhaust NOx level of the engine is monitored, and water injected into an intake conduit for the engine based on the monitored engine parameter to limit the exhaust NOx level of the engine. Related apparatus and control logic is disclosed.

公开(公告)号：US20150128897A1

公开(公告)日：2015-05-14

申请号：US14598935

申请日：2015-01-16

申请人： NOSTRUM ENERGY PTE, LTD.

发明人： Nirmal Mulye

IPC分类号： F02M25/03 ,  F02M25/035

CPC分类号： F02B47/02 ,  F01P3/00 ,  F01P2003/001 ,  F02D35/025 ,  F02D41/0025 ,  F02D41/1441 ,  F02D41/1446 ,  F02D41/3094 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02M25/022 ,  F02M25/025 ,  F02M25/028 ,  F02M25/03 ,  F02M25/035 ,  Y02T10/121 ,  Y02T10/16

摘要： An internally cooled internal combustion piston engine and method of operating a piston engine is provided, with the combination of liquid water injection, higher compression ratios than conventional engines, and leaner air fuel mixtures than conventional engines. The effective compression ratio of the engines herein is greater than 13:1. The engines may employ gasoline or natural gas and use spark ignition, or the engines may employ a diesel-type fuel and use compression ignition. The liquid water injection provides internal cooling, reducing or eliminating the heat rejection to the radiator, reduces engine knock, and reduces NOx emissions. The method of engine operation using internal cooling with liquid water injection, high compression ratio and lean air fuel mixture allow for more complete and efficient combustion and therefore better thermal efficiency as compared to conventional engines.

摘要翻译： 提供内部冷却的内燃活塞发动机和操作活塞发动机的方法，其结合了液体注水，比常规发动机更高的压缩比和比常规发动机更稀的空气燃料混合物。 这里的发动机的有效压缩比大于13:1。 发动机可以使用汽油或天然气并使用火花点火，或者发动机可以使用柴油型燃料并使用压缩点火。 液体注水提供内部冷却，减少或消除散热器的排热，减少发动机爆震，并减少NOx排放。 使用内部冷却的液体注射，高压缩比和稀薄空气燃料混合物的发动机操作方法允许与常规发动机相比更完整和有效的燃烧，因此具有更好的热效率。

公开(公告)号：US07013846B2

公开(公告)日：2006-03-21

申请号：US10490684

申请日：2002-10-01

申请人： Thomas Hägglund ,  Harry Holmgren

发明人： Thomas Hägglund ,  Harry Holmgren

IPC分类号： F02B47/00

CPC分类号： F02M31/20 ,  F02B3/06 ,  F02M25/028 ,  F02M25/035 ,  Y02T10/121 ,  Y02T10/126 ,  Y02T10/16

摘要： Arrangement in connection with a diesel engine comprising an air supply system for the diesel engine for supplying suction air to the engine from the environment, the air supply system comprising at least a channel arrangement, a compressor and a heat exchanger for suction air and a cooling circuit for the diesel engine, to which circuit at least one heat exchanger is connected. The heat exchanger connected to the cooling circuit, which recovers waste heat from the diesel engine, is arranged to evaporate water by the heat received from the cooling circuit. The invention also relates to a corresponding method.

摘要翻译： 与柴油发动机相关的装置包括用于从环境向发动机供应吸入空气的柴油发动机的供气系统，空气供应系统至少包括通道装置，压缩机和用于吸入空气和冷却的热交换器 用于柴油发动机的回路，至少一个热交换器连接到该回路。 连接到冷却回路的热交换器，其从柴油发动机回收废热，被布置成通过从冷却回路接收的热量来蒸发水。 本发明还涉及相应的方法。

公开(公告)号：US20050257754A1

公开(公告)日：2005-11-24

申请号：US10907116

申请日：2005-03-21

申请人： Graeme Jenkins ,  Wayne Rowberry ,  Eugene Overly ,  Thomas Wood ,  Glen Morgan

发明人： Graeme Jenkins ,  Wayne Rowberry ,  Eugene Overly ,  Thomas Wood ,  Glen Morgan

IPC分类号： F02B47/02 ,  F02G5/00 ,  F02M43/04

CPC分类号： F02B47/02 ,  F02M25/0225 ,  F02M25/0227 ,  F02M25/035 ,  Y02T10/121

摘要： Device, systems and methods for introducing water into the combustion chamber of an internal combustion engine, incorporating an injector and a heater, are shown and described. The injector is configured to inject water at a pulse rate and frequency controlled by various engine performance readings, and the heater configured to convert the water into steam on demand, and to route the steam into the air stream flowing toward the combustion cylinder. In certain embodiments, the heater is positioned to provide steam to the cylinder before the temperature of the steam changes significantly. In other embodiments, the heater is configured to convert to steam a flow of water equal to or less than the amount of fuel burned by the engine during the same time period.

摘要翻译： 显示和描述了用于将水引入内燃机的燃烧室中的装置，系统和方法，其包括喷射器和加热器。 喷射器被配置为以各种发动机性能读数以脉率和频率控制的水进行喷射，并且加热器被配置为根据需要将水转换成蒸汽，并将蒸汽引导到朝向燃烧气缸流动的空气流中。 在某些实施例中，加热器定位成在蒸汽的温度显着变化之前向气缸提供蒸汽。 在其他实施例中，加热器被配置成转换成在同一时间段内蒸汽等于或小于由发动机燃烧的燃料量。

公开(公告)号：US20050217268A1

公开(公告)日：2005-10-06

申请号：US10988960

申请日：2004-11-15

申请人： Lawrence Clawson

发明人： Lawrence Clawson

IPC分类号： F02B37/00 ,  C01B3/38 ,  F01K23/02 ,  F01K23/10 ,  F01N5/02 ,  F02B1/04 ,  F02B3/06 ,  F02B33/44 ,  F02B41/00 ,  F02B43/10 ,  F02B47/02 ,  F02B75/02 ,  F02G5/02 ,  F02M25/022 ,  F02M27/02 ,  F02M31/093 ,  F02M31/16 ,  F01K1/00

CPC分类号： F02M31/16 ,  C01B3/384 ,  C01B2203/0227 ,  C01B2203/0811 ,  C01B2203/84 ,  F01N5/02 ,  F02B1/04 ,  F02B3/06 ,  F02B33/443 ,  F02B37/00 ,  F02B41/00 ,  F02B43/10 ,  F02B47/02 ,  F02B2075/027 ,  F02G5/02 ,  F02M25/0224 ,  F02M25/035 ,  F02M27/02 ,  F02M31/093 ,  Y02E20/14 ,  Y02P20/129 ,  Y02T10/12 ,  Y02T10/121 ,  Y02T10/126 ,  Y02T10/14 ,  Y02T10/16 ,  Y02T10/166 ,  Y02T10/32

摘要： High-efficiency combustion engines, including Otto cycle engines, use a steam-diluted fuel charge at elevated pressure. Air is compressed, and water is evaporated into the compressed air via the partial pressure effect using waste heat from the engine. The resultant pressurized air-steam mixture then burned in the engine with fuel, preferably containing hydrogen to maintain flame front propagation. The high-pressure, steam-laden engine exhaust is used to drive an expander to provide additional mechanical power. The exhaust can also be used to reform fuel to provide hydrogen for the engine combustion. The engine advantageously uses the partial pressure effect to convert low-grade waste heat from engine into useful mechanical power. The engine is capable of high efficiencies (e.g. >50%), with minimal emissions.

摘要翻译： 包括奥托循环发动机在内的高效内燃机在高压下使用蒸汽稀释的燃料。 空气被压缩，并且通过使用来自发动机的废热的分压效应将水蒸发到压缩空气中。 所得到的加压空气 - 蒸汽混合物随后用燃料在发动机中燃烧，优选地含有氢气以保持火焰正面传播。 高压，蒸汽的发动机排气用于驱动膨胀机以提供额外的机械动力。 废气还可用于改造燃料以提供用于发动机燃烧的氢气。 发动机有利地使用分压效应将来自发动机的低等级废热转化为有用的机械动力。 发动机能够实现高效率（例如> 50％），排放最少。

公开(公告)号：US20050188963A1

公开(公告)日：2005-09-01

申请号：US11060103

申请日：2005-02-16

申请人： Donald Stoddard

发明人： Donald Stoddard

IPC分类号： F02G5/00 ,  F02M31/125 ,  F02M31/18

CPC分类号： F02G5/00 ,  F01P2060/10 ,  F02M25/0228 ,  F02M25/028 ,  F02M25/035 ,  F02M31/125 ,  F02M31/183 ,  Y02T10/126

摘要： A method is disclosed for operation of an evaporator in a gasoline-fueled internal combustion engine. The methods disclosed apply to existing gasoline-fueled engines and to new gasoline-fueled engines designed for fuel evaporation. Also disclosed are means to introduce optimized quantities of water or steam into an engine.

摘要翻译： 公开了一种用于在汽油燃料内燃机中操作蒸发器的方法。 所公开的方法适用于现有的汽油发动机和用于燃料蒸发的新的汽油燃料发动机。 还公开了将优化量的水或蒸汽引入发动机的手段。

公开(公告)号：US5488932A

公开(公告)日：1996-02-06

申请号：US283941

申请日：1994-08-01

申请人： Joseph Serafini

发明人： Joseph Serafini

IPC分类号： F02B43/08 ,  F02M25/07 ,  F02B47/08

CPC分类号： F02B43/08 ,  F02M25/0228 ,  F02M25/035 ,  F02M26/14 ,  F02M26/36 ,  Y02T10/121 ,  Y02T10/32

摘要： A gaseous fuel-enriching subsystem for an internal combustion engine includes a supplemental intake conduit to a an intake manifold internal combustion engine. Such supplemental input is provided with numerus apertures therein. An exhaust gas conduit from the internal combustion engine annularly surrounds the intake conduit permitting fuel values from exhaust in the exhaust conduit to enter the supplemental intake conduit through such apertures. A water supply input to the supplemental intake conduit, at a end opposite to the location of the manifold, provides a further fuel input to the supplemental intake conduit in that water from the water supply is evaporated and then hydrolyzed, separating the water into its chemical constituents of hydrogen and oxygen, thusly producing an enriched gaseous fuel mixture with the recycled exhaust gas which is fed to the manifold.

摘要翻译： 用于内燃机的气体燃料富集子系统包括进气歧管内燃机的辅助进气管道。 这样的补充输入在其中具有数值孔径。 来自内燃机的废气导管环形地包围进气管道，允许来自排气管道中的排气的燃料值通过这些孔口进入补充进气管道。 在与歧管位置相对的端部处，补充进气管道的供水输入为补充进气管道提供另外的燃料输入，因为来自供水的水被蒸发然后水解，将水分离成其化学物质 氢和氧的成分，从而产生富集的气体燃料混合物，再循环的废气被供给至歧管。

公开(公告)号：US5213086A

公开(公告)日：1993-05-25

申请号：US731767

申请日：1991-07-17

申请人： Fred Sims

发明人： Fred Sims

IPC分类号： F02M7/18 ,  F02M9/127 ,  F02M15/02 ,  F02M31/04 ,  F02M31/16 ,  F02M31/20

CPC分类号： F02M31/20 ,  F02M15/02 ,  F02M25/035 ,  F02M31/042 ,  F02M31/16 ,  F02M7/18 ,  F02M9/127 ,  F02M25/0225 ,  Y02T10/121 ,  Y02T10/126

摘要： A fuel inlet system (12) for an internal combustion engine (10) comprises a heat exchanger (22), heated by engine exhaust gases, to preheat air being supplied to a carburetor (14). The air is introduced into the carburetor (14) at a temperature of between about 375.degree. to 400.degree. F. The carburetor (14) has an annular heating chamber (122) in which the heated air is circulated. A fuel inlet conduit (63) is in thermal contact with the heated air in the heating chamber (122) to preheat the fuel. The air and fuel is mixed in two stages, the first being during travel along a conduit (144) and the second in a mixing chamber (170) in the carburetor (14). The carburetor (14) includes a valve (148) for restricting the amount of air flowing to the mixing chamber (170). The fuel inlet system (12) further comprises means (20) for adding water to the air/fuel mixture.

摘要翻译： 一种用于内燃机（10）的燃料入口系统（12）包括由发动机废气加热的热交换器（22），以将供应给化油器（14）的空气预热。 空气在约375°至400°F的温度下被引入化油器（14）中。化油器（14）具有环形加热室（122），加热的空气在其中循环。 燃料入口导管（63）与加热室（122）中的加热空气热接触以预热燃料。 空气和燃料分两个阶段进行混合，第一个是沿着导管（144）行进，第二个是在化油器（14）中的混合室（170）中。 化油器（14）包括用于限制流入混合室（170）的空气量的阀（148）。 燃料入口系统（12）还包括用于向空气/燃料混合物加水的装置（20）。

公开(公告)号：US4918916A

公开(公告)日：1990-04-24

申请号：US236368

申请日：1988-08-22

申请人： Lars Tiberg

发明人： Lars Tiberg

IPC分类号： F02B1/04 ,  F02B3/06 ,  F02M31/08 ,  F23J15/06 ,  F23L7/00 ,  F23L15/02

CPC分类号： F23L15/02 ,  F02M25/0222 ,  F02M25/035 ,  F02M31/08 ,  F23J15/06 ,  F23L7/005 ,  F02B1/04 ,  F02B3/06 ,  Y02E20/348 ,  Y02T10/121 ,  Y02T10/126 ,  Y10S101/36

摘要： This invention relates to a method of transferring water from gases generated by combustion to air of combustion when burning hydrogen-containing or moist fuels, in which the combustion gases are cooled to temperatures beneath or in the proximity of their dew point temperature. Subsequent to this initial cooling, the gases are further cooled by means of a regenerative exchange of heat with the incoming air of combustion, such that water vapor is condensed on the combustion gas side and revaporized on the air of combustion side, both heat and water vapor being transferred from the combustion gases to the air of combustion. In accordance with one preferred embodiment of the invention, the method is effected in a combustion engine, such as a diesel engine or Otto-cycle engine.

公开(公告)号：US4632067A

公开(公告)日：1986-12-30

申请号：US803562

申请日：1985-12-02

申请人： Drexel T. Carlson

发明人： Drexel T. Carlson

IPC分类号： F02B1/04 ,  F02M25/022 ,  F02M25/04

CPC分类号： F02M25/0227 ,  F02M25/035 ,  F02B1/04 ,  Y02T10/121

摘要： A vapor generating and injection device for internal combustion engines; a vapor generating and injection system and device for vehicle engine systems having a turbo air compressor on the air intake line running from the air cleaner to the engine intake manifold; a vapor injection and generation system and device for internal combustion engines where there is available a supplemental pressurized air source such as a vehicle air brake system, a pollution control air pump, an exhaust manifold pressure tap, an air horn supply system, an add-on compressor or the like; vapor generating and injection devices for humidifying (by vapor only) the air supply for combustion to the cylinders of internal combustion engines.

摘要翻译： 一种用于内燃机的蒸气发生和喷射装置; 用于车辆发动机系统的蒸汽发生和喷射系统和装置，其具有在空气净化器到发动机进气歧管的进气管线上的涡轮空气压缩机; 用于内燃机的蒸汽喷射和发电系统和装置，其中可以获得补充的加压空气源，例如车辆空气制动系统，污染控制空气泵，排气歧管压力开关，气喇叭供应系统， 压缩机等; 蒸汽发生和喷射装置，用于将（用于仅蒸汽）用于燃烧的空气供应到内燃机的气缸。