公开(公告)号：US20240018915A1

公开(公告)日：2024-01-18

申请号：US18120651

申请日：2023-03-13

申请人： DONGFENG HONDA ENGINE CO.,LTD. ,  Tianjin University

发明人： Zhibin Zeng ,  Min Zhuang ,  Guanghui Jiang ,  Jiaxiong Wei ,  Lei Zhou ,  Zongkuan Liu ,  Haiqiao Wei

IPC分类号： F02D19/06 ,  F02B19/12 ,  F02B19/10 ,  F02B25/02 ,  F02D21/02 ,  F02B19/16 ,  F02P5/15

CPC分类号： F02D19/0639 ,  F02D19/0671 ,  F02D19/0689 ,  F02D19/0692 ,  F02B19/12 ,  F02B19/1023 ,  F02D19/0665 ,  F02B25/02 ,  F02D21/02 ,  F02B19/16 ,  F02P5/1502 ,  F02B19/1085

摘要： The present invention discloses an ammonia-hydrogen fusion fuel diffusion combustion control system based on reactivity regulation, comprising an on-board ammonia-hydrogen fuel supply system, an ammonia-hydrogen fusion fuel diffusion combustion engine and an ECU; the ECU is used to control the intensity of a precombustion chamber jet flame, control the reactivity of a hydrogen-air mixture in a main combustion chamber and control the injection time of an ammonia ejector, thus to form diffusion combustion in the main combustion chamber; the on-board ammonia-hydrogen fuel supply system comprises a low-pressure ammonia fuel supply unit and an on-board hydrogen production unit, and is used to provide prepared low-pressure ammonia fuel and hydrogen for the ammonia-hydrogen fusion fuel diffusion combustion engine; before the formation of the precombustion chamber jet flame, hydrogen regulated by the ECU is firstly injected into the main combustion chamber by a first hydrogen ejector, and then the injection time of the ammonia ejector is controlled by the ECU to be slightly earlier than or synchronous with the formation of the precombustion chamber jet flame, so that ammonia fuel injected into the main combustion chamber is in a state of burning while injecting, thus to form diffusion combustion in the main combustion chamber.

公开(公告)号：US09964023B1

公开(公告)日：2018-05-08

申请号：US15144774

申请日：2016-05-02

申请人： Darius Teslovich

发明人： Darius Teslovich

IPC分类号： F02B19/12 ,  F02M43/04 ,  F02M57/06 ,  F02B19/10 ,  F02M21/02

CPC分类号： F02B19/12 ,  F02B19/1004 ,  F02B19/1085 ,  F02M21/0275 ,  F02M43/04 ,  F02M57/06

摘要： A prechamber is provided for attachment to an inlet of a combustion chamber of an internal combustion engine. The prechamber decreases the compression ratio of the combustion chamber. Some examples of the prechamber include a means of adding a spark plug to an engine that was originally designed to ignite fuel/air through compression of the fuel/air. Other examples of the prechamber include internal structures to introduce “swirl” in fuel/air as it is injected. Still other examples of the prechamber include a plurality of fuel injectors, with each fuel injector being structured to introduce a different type of fuel into the prechamber. A means of selecting a specific type of fuel based on engine operating conditions is also provided.

公开(公告)号：US09903264B1

公开(公告)日：2018-02-27

申请号：US15296181

申请日：2016-10-18

申请人： Caterpillar Inc.

发明人： Mary Louise Yeager ,  Lucas Allen Burger ,  Andrew Loetz ,  Brett Zook

IPC分类号： F02B19/10 ,  F02D41/30 ,  F02B19/12 ,  F02B43/10 ,  F02D41/00 ,  F02D41/14

CPC分类号： F02B19/1085 ,  F02B19/12 ,  F02B43/10 ,  F02B2043/103 ,  F02D35/023 ,  F02D35/024 ,  F02D41/0027 ,  F02D41/1439 ,  F02D41/28 ,  F02D41/3094

摘要： A control system for an engine cylinder having a pre-chamber and a main chamber includes a pressure sensor being provided in the pre-chamber, and a processor coupled to the pressure sensor. The processor is configured to measure pre-chamber pressure using the pressure sensor, determine a peak pre-chamber pressure from the measured pre-chamber pressure, calculate an estimated main chamber pressure corresponding to the peak pre-chamber pressure from at least one cylinder condition at ignition, calculate a pressure ratio of the peak pre-chamber pressure to the estimated main chamber pressure, calculate a fuel parameter for at least one of the pre-chamber and main chamber from the pressure ratio to achieve a desired pressure ratio, and generate a control signal to provide fuel to at least one of the pre-chamber and main chamber in accordance with the fuel parameter.

公开(公告)号：US09835066B2

公开(公告)日：2017-12-05

申请号：US14854034

申请日：2015-09-14

申请人： David Cook

发明人： David Cook

IPC分类号： F01N3/04 ,  F01P3/02 ,  F01P3/16 ,  F02B19/10 ,  F01N3/10 ,  F01N3/20 ,  F01N13/10 ,  F01N13/18 ,  F01N13/00 ,  F02M21/02 ,  F02B19/12 ,  F02B37/24 ,  F02B19/18 ,  F02B43/00 ,  F02B75/02

CPC分类号： F01N3/046 ,  F01N3/103 ,  F01N3/2066 ,  F01N13/0093 ,  F01N13/10 ,  F01N13/107 ,  F01N13/1816 ,  F01N2340/02 ,  F01N2340/06 ,  F01N2590/02 ,  F01N2590/08 ,  F01N2610/02 ,  F01P3/02 ,  F01P3/16 ,  F02B19/1004 ,  F02B19/108 ,  F02B19/1085 ,  F02B19/12 ,  F02B19/18 ,  F02B37/24 ,  F02B43/00 ,  F02B2075/025 ,  F02M21/0215 ,  F02M21/0251 ,  F02M21/0269 ,  F02M21/0275 ,  F02M21/0281 ,  Y02T10/125 ,  Y02T10/144 ,  Y02T10/24 ,  Y02T10/32

摘要： A prechamber assembly includes a cylinder head including a coolant cavity, a prechamber body located within the cylinder head, the prechamber body including a nozzle, and an annular sleeve radially surrounding a portion of the prechamber body. The sleeve includes a plurality of coolant inlet holes. A portion of the prechamber body is radially spaced from the sleeve to form a coolant sleeve annulus extending along a length of the prechamber body above the coolant inlet holes. The coolant cavity and the coolant sleeve annulus are in fluid communication through the plurality of coolant inlet holes.

公开(公告)号：US09441573B1

公开(公告)日：2016-09-13

申请号：US14964471

申请日：2015-12-09

申请人： Combustion Engine Technolgies, LLC

发明人： Alexander Sergin

IPC分类号： F02F1/22 ,  F02M31/14 ,  F02B25/02 ,  F02D23/00 ,  F02B1/14 ,  F02B75/02

CPC分类号： F02F1/22 ,  F02B1/14 ,  F02B19/00 ,  F02B19/108 ,  F02B19/1085 ,  F02B19/14 ,  F02B25/02 ,  F02B75/02 ,  F02B2075/025 ,  F02D23/00 ,  F02D41/0007 ,  F02D41/064 ,  F02D2400/04 ,  F02M31/145 ,  F02P19/02 ,  Y02T10/125 ,  Y02T10/126 ,  Y02T10/144

摘要： A two-stroke reciprocating piston engine is configured with a cylinder having a cylinder head. A piston is mounted in a bore of the cylinder for reciprocating motion. A symmetrically shaped combustion chamber is defined by a crown of the piston at top dead center and the cylinder head. At least two valved inlet ports having orifices positioned in the cylinder head symmetrically with respect to the axis are connected to receive pressurized oxidizer charge. At least two unvalved exhaust ports having apertures positioned in the cylinder wall symmetrically with respect to the axis are provided. The exhaust ports are exposed with the piston proximate bottom dead center and are operatively positioned with respect to the at least two valved inlet port orifices for forced gas exchange in the cylinder. At least one fuel injection device introduces fuel symmetrically into the combustion chamber.

摘要翻译： 二冲程往复活塞发动机构造为具有气缸盖的气缸。 活塞安装在气缸的孔中用于往复运动。 对称形状的燃烧室由上止点和气缸盖的活塞的顶盖限定。 至少两个具有相对于轴对称地定位在气缸盖中的孔的阀门入口连接以接收加压氧化剂装料。 提供了至少两个未评估的排气口，其具有相对于轴对称地定位在气缸壁中的孔。 排气口与活塞一起暴露在靠近下止点处，并相对于至少两个带阀的进口端口可操作地定位，用于气缸中的强制气体交换。 至少一个燃料喷射装置将燃料对称地引入燃烧室。

公开(公告)号：US20160053668A1

公开(公告)日：2016-02-25

申请号：US14929440

申请日：2015-11-02

申请人： Caterpillar Inc.

发明人： Andrew J. Loetz ,  Joel D. Hiltner

IPC分类号： F02B19/10 ,  F02B19/18 ,  F02B19/12

CPC分类号： F02B19/1085 ,  F02B19/1014 ,  F02B19/108 ,  F02B19/12 ,  F02B19/18 ,  F02B43/00 ,  Y02T10/125

摘要： A prechamber assembly for an engine is provided. The prechamber assembly includes a prechamber located upstream of a main combustion chamber and adapted to receive fuel from a fuel supply system of the engine. The prechamber includes a first portion, a taper portion, and a second portion. The prechamber assembly further includes a fuel injection member located downstream of the taper portion of the prechamber and fluidly connected to the second portion of the prechamber. The fuel injection member is inclined at an angle with respect to a central axis of the prechamber. The fuel injection member is in electric communication with a controller. The controller is configured to actuate the fuel injection member to supply the fuel into the second portion of the prechamber to provide rich mixing of the fuel with an air-fuel mixture received from the main combustion chamber during operation of the engine.

摘要翻译： 提供了一种用于发动机的预制器组件。 前房组件包括位于主燃烧室上游并适于从发动机的燃料供应系统接收燃料的预燃室。 前置室包括第一部分，锥形部分和第二部分。 预燃室组件还包括燃料喷射构件，该燃料喷射构件位于预燃室的锥形部分的下游并且流体地连接到预燃室的第二部分。 燃料喷射构件相对于预制室的中心轴线倾斜一定角度。 燃料喷射构件与控制器电连通。 控制器被配置为致动燃料喷射构件以将燃料供应到预燃室的第二部分中，以在发动机运行期间提供燃料与从主燃烧室接收的空气燃料混合物的丰富混合。

公开(公告)号：US08925518B1

公开(公告)日：2015-01-06

申请号：US14215450

申请日：2014-03-17

申请人： Woodward, Inc.

发明人： Michael B. Riley ,  Gregory James Hampson ,  Domenico Chiera

IPC分类号： F02B19/00 ,  F02B19/10 ,  F02B19/02

CPC分类号： F02B19/10 ,  F02B19/00 ,  F02B19/1023 ,  F02B19/1057 ,  F02B19/108 ,  F02B19/1085 ,  F02B19/12 ,  F02B19/18 ,  F02B2201/064 ,  F02D19/08 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/403 ,  F02M25/10 ,  F02M37/0064 ,  F02P13/00 ,  Y02T10/125 ,  Y02T10/36

摘要： A system has an engine. The engine has a combustion chamber, a pre-combustion chamber apart from the combustion chamber, and an opening spanning between the combustion chamber and the pre-combustion chamber. The engine also has a first fuel supply system adapted to supply liquid fuel to the pre-combustion chamber and a second fuel supply system adapted to supply a second, different fuel to the combustion chamber. In certain instances, an oxygen supply system supplies oxygen into the prechamber.

摘要翻译： 一个系统有一个引擎。 发动机具有燃烧室，与燃烧室隔开的预燃室和跨过燃烧室和预燃烧室之间的开口。 发动机还具有适于将液体燃料供应到预燃烧室的第一燃料供应系统和适于向燃烧室供应第二不同燃料的第二燃料供应系统。 在某些情况下，氧气供应系统将氧气供应到预燃室中。

公开(公告)号：US08050848B2

公开(公告)日：2011-11-01

申请号：US12289346

申请日：2008-10-24

申请人： Matthias Huschenbett ,  Greg Beshouri

发明人： Matthias Huschenbett ,  Greg Beshouri

IPC分类号： F02B19/10 ,  F02B19/12

CPC分类号： F02D35/021 ,  F02B19/1085 ,  F02B19/12 ,  F02D35/023 ,  F02D35/028 ,  F02D41/1402 ,  F02D41/345 ,  F02D41/401 ,  F02P5/045 ,  F02P9/002 ,  F02P13/00 ,  Y02T10/125 ,  Y02T10/44

摘要： A method and system for igniting a lean fuel mixture in a main chamber of an internal combustion engine by igniting a rich air-fuel mixture in a pre-combustion chamber which is fuelled using a controlled valve. For a stable and consistent ignition of the main chamber and simultaneous reduction of emission of the internal combustion engine, a closed loop control adjusts the fuel amount and the fuelling time for the pre-combustion chamber in order to achieve a light off in an optimal time window and by sufficient ignition energy.

摘要翻译： 一种用于通过点燃使用受控阀燃料的预燃烧室中的浓空气燃料混合物来点燃内燃机的主室中的贫燃混合物的方法和系统。 为了稳定和一致地点燃主室并同时减少内燃机的排放，闭环控制调节预燃室的燃料量和燃料加注时间，以便在最佳时间内实现熄火 窗口和足够的点火能量。

公开(公告)号：US20040107941A1

公开(公告)日：2004-06-10

申请号：US10474235

申请日：2003-10-03

发明人： Satoru Goto

IPC分类号： F02B019/10

CPC分类号： F02N99/006 ,  F02B19/1085 ,  F02D19/0605 ,  F02D19/061 ,  F02D19/10 ,  F02D41/062 ,  F02D41/403 ,  Y02T10/125 ,  Y02T10/36 ,  Y02T10/44

摘要： The object of the present invention is to enable the reliable compression ignition from starting of a pilot oil ignition gas engine in whose cylinder head there is provided a precombustion chamber unit with pilot injection valve that has liquid fuel injection valves and a precombustion chamber by using the injection of pilot oil from the liquid fuel injection valves, and to thereby allow the engine to be started smoothly. The position of a fuel rack (fuel control rod) that controls the discharge quantity of fuel injection pumps that feed pilot oil to the liquid fuel injection valves is controlled by a control apparatus via a rack control actuator (a position control actuator). In addition, the control apparatus counts the engine speed from pulses generated by a speed sensor and, in a region where the engine speed is low, sets the discharge quantity of the fuel injection pumps to a large quantity. As a result, pilot oil is reliably injected from the liquid fuel injection valves, and gaseous fuel is reliably ignited and burned.

摘要翻译： 本发明的目的是为了能够从其前端油点火燃气发动机起动可靠的压缩点火，其中气缸头的气缸头设有一个带有先导喷射阀的预燃室单元，其具有液体燃料喷射阀和一个预燃室， 从液体燃料喷射阀喷射先导油，从而使发动机顺利起动。 通过控制装置经由齿条控制致动器（位置控制致动器）来控制向液体燃料喷射阀供给先导油的燃料喷射泵的排出量的燃料架（燃料控制棒）的位置。 此外，控制装置根据由速度传感器产生的脉冲计算发动机转速，并且在发动机转速较低的区域中，大量设定燃料喷射泵的排出量。 结果，可以从液体燃料喷射阀可靠地喷射先导油，并且气体燃料被可靠地点燃和燃烧。

公开(公告)号：US4077368A

公开(公告)日：1978-03-07

申请号：US663047

申请日：1976-03-02

申请人： Jorg Abthoff ,  Gunther Bubeck ,  Roland Fink ,  Ludwig Fricker ,  Karlheinz Gube ,  Jurgen Lammer ,  Hans-Dieter Schuster ,  Hans-Joachim Sponagel

发明人： Jorg Abthoff ,  Gunther Bubeck ,  Roland Fink ,  Ludwig Fricker ,  Karlheinz Gube ,  Jurgen Lammer ,  Hans-Dieter Schuster ,  Hans-Joachim Sponagel

IPC分类号： F02B1/04 ,  F02B19/10 ,  F02B75/02 ,  F02D33/00 ,  F02B19/12 ,  F02B19/18

CPC分类号： F02B19/1014 ,  F02B19/1085 ,  F02B1/04 ,  F02B2075/027 ,  Y02T10/125

摘要： A four-cycle reciprocating-piston internal combustion engine having a main combustion chamber connected by a spill port with an unflushed ignition chamber. A fuel injection nozzle and a spark plug are arranged at the ignition chamber at angles with respect to one another. Fuel supply means are also provided at the main combustion chamber for supplying a substantial majority of the fuel consumed by the engine during operation. In order to maximize the effectiveness of the ignition chamber, while minimizing the high peak pressures, the ignition chamber and spill port are constructed so as to have an extensive homogenization of the fuel proportion injected into the ignition chamber. In preferred embodiments, the ratio of the volume of the ignition chamber to the total compression volume of the engine is in the range of 0.10 to 0.30 and the ratio of the volume of the spill port to the total compression volume is in the range of 0.01 to 0.25. Further, the injection nozzle provides between 2 and 10% of the total maximum full-load quantity of fuel for the engine and the injection of fuel into the ignition chamber is initiated during the intake stroke movement of the piston bounding the main combustion chamber.

摘要翻译： 一个四冲程往复活塞内燃机，其主燃烧室通过溢流口连接有未熔化的点火室。 燃料喷射喷嘴和火花塞以相对于彼此的角度布置在点火室处。 燃料供给装置也设置在主燃烧室，用于在运行期间提供发动机消耗的大部分燃料。 为了最大限度地提高点火室的效能，在最大限度地降低高峰值压力的同时，点火室和溢油口都被构造成使喷射到点火室中的燃料比例大大均匀化。 在优选实施例中，点火室的体积与发动机的总压缩体积的比率在0.10至0.30的范围内，并且溢出口的体积与总压缩体积的比率在0.01的范围内 至0.25。 此外，注射喷嘴提供用于发动机的总最大满载量燃料的2％至10％之间，并且在包围主燃烧室的活塞的进气冲程运动期间启动进入点火室的燃料喷射。