公开(公告)号：US20160230645A1

公开(公告)日：2016-08-11

申请号：US15132317

申请日：2016-04-19

申请人： BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY

发明人： Harold Schock ,  Guoming Zhu ,  Elisa Toulson ,  Thomas Richard Stuecken

IPC分类号： F02B19/12 ,  F02P23/00 ,  F02F1/42 ,  F02B35/00 ,  F02B19/10

CPC分类号： F02B19/06 ,  F02B19/1023 ,  F02B19/1028 ,  F02B19/1042 ,  F02B19/1052 ,  F02B19/12 ,  F02B35/00 ,  F02F1/4285 ,  F02P23/00 ,  Y02T10/125 ,  Y02T10/146

摘要： An internal combustion engine includes a pre-chamber. In another aspect, pressure within a pre-chamber is equal to or greater than pressure within a main combustion chamber at least prior to ignition in the main combustion chamber. A further aspect provides a supplemental piston creating pressure and supplying a fuel-air mixture into a pre-chamber, and a spark or glow plug has an end located within the pre-chamber for ignition of the mixture therein. In yet another aspect, internal combustion engine control software automatically controls pressure within a turbulent jet ignition pre-chamber, controls a valve-actuator to admit a fuel-air charge into the pre-chamber, and causes an ignitor to initiate combustion in the pressurized pre-chamber. This also permits the rate of combustion to be controlled in the primary chamber regardless of the air-fuel ratio or the diluent fraction in the main chamber. Another aspect employs a pre-chamber purge pump with separate air and fuel injection. Moreover, an additional aspect separately supplies unmixed air and fuel into a turbulent jet ignition pre-chamber through a dual-mode, single injector unit.

摘要翻译： 内燃机包括预燃室。 在另一方面，至少在主燃烧室内点燃之前，预燃室内的压力等于或大于主燃烧室内的压力。 另一方面提供了一种补充活塞，其产生压力并将燃料 - 空气混合物供应到预燃室中，并且火花塞或电热塞具有位于预燃室内的端部，用于在其中点燃混合物。 在另一方面，内燃机控制软件自动控制湍流喷射点火预燃室内的压力，控制阀致动器以允许燃料 - 空气装料进入预燃室，并使点火器在加压 预制室。 这也允许在主室中控制燃烧速率，而不管主室中的空燃比或稀释剂馏分如何。 另一方面采用具有单独的空气和燃料喷射的预室清洗泵。 此外，附加方面通过双模式单个喷射器单元将未混合的空气和燃料独立供应到湍流喷射点火预燃室中。

公开(公告)号：US09341143B2

公开(公告)日：2016-05-17

申请号：US14373087

申请日：2012-04-20

申请人： Konstantin Ivanovich Fedin

发明人： Konstantin Ivanovich Fedin

IPC分类号： F02M21/02 ,  F02B19/12

CPC分类号： F02M21/0209 ,  F02B19/12 ,  Y02T10/125

摘要： A piston engine intakes, at the compression stage, lean gas-air mixture from a cylinder to the ignition chamber. The residual gases are at 500° C. to 700° C., and are composed of: carbon dioxide 6.7% to 5.6%, oxygen 6.6% to 8.8%, water vapor 12.8% to 19.8% with the air excess factor 1.5 to 1.8, are preserved in the ignition chamber and are used for initiating, at the contact, and mixing with the gas-air mixture, the reactions of combined conversion of the lowermost alkanes (methane, ethane, propane, butane, etc.), into hydrogen and carbon monoxide; intensifying reactions of combined conversion in the compression cycle, by increasing pressure and, therefore, temperature of the gas-air mixture in the cylinder and in the ignition chamber, up to 5-5.5 MPa and 500-600° C., at the moment of the spark. The ignition chamber can be made of catalytic material, e.g., nickel heat-resistant steel.

摘要翻译： 活塞发动机在压缩阶段进入从气缸到点火室的贫气 - 空气混合物。 残留气体为500〜700℃，由二氧化碳6.7％〜5.6％，氧气6.6％〜8.8％，水蒸气12.8％〜19.8％，空气过剩因子1.5〜1.8 被保存在点火室中，用于与气体 - 空气混合物接触和混合时将最低级烷烃（甲烷，乙烷，丙烷，丁烷等）组合转化为氢气的反应 和一氧化碳; 在压缩循环中加剧组合转化的反应，通过将气缸和点火室中的气体 - 空气混合物的温度升高至高达5-5.5MPa和500-600℃，此时 的火花。 点火室可以由催化材料制成，例如镍耐热钢。

公开(公告)号：US09316144B2

公开(公告)日：2016-04-19

申请号：US14034996

申请日：2013-09-24

申请人： GE Jenbacher GmbH & Co OG

发明人： Friedrich Gruber

IPC分类号： F02B23/04 ,  F02B19/12 ,  F02B19/10 ,  F02B19/16

CPC分类号： F02B23/04 ,  F02B19/1095 ,  F02B19/12 ,  F02B19/16 ,  F02P13/00 ,  Y02T10/125

摘要： A pre-chamber system for an internal combustion engine, in particular for a gas engine, includes a pre-chamber volume in which an ignitable fuel-air mixture can be fired by an ignition device which can be arranged at the pre-chamber system. The pre-chamber system has a flow transfer passage by which the pre-chamber volume can be connected to a main combustion chamber of the internal combustion engine. The pre-chamber volume includes an ignition region and a flow transfer region which is at least portion-wise delimited from the ignition region by an intermediate wall. The fuel-air mixture can be fired in the ignition region, and the flow transfer passage opens into the flow transfer region and there is provided an air feed passage. Preferably compressed air can be fed to the flow transfer region by way of the air feed passage.

摘要翻译： 用于内燃机，特别是用于燃气发动机的预燃室系统包括预燃室容积，其中可点燃的燃料 - 空气混合物可以通过可以布置在预燃室系统的点火装置来燃烧。 预燃室系统具有流动传递通道，通过该流动传送通道可将预燃室容积连接到内燃机的主燃烧室。 预燃室容积包括点火区域和流动传递区域，其通过中间壁至少部分地与点燃区域界定。 燃料 - 空气混合物可以在点燃区域中燃烧，并且流动传递通道通向流动传送区域，并且设置有空气供给通道。 优选地，压缩空气可以通过空气供给通道供给到流动传送区域。

公开(公告)号：US20160061095A1

公开(公告)日：2016-03-03

申请号：US14934188

申请日：2015-11-06

申请人： Caterpillar Inc.

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

IPC分类号： F02B19/12 ,  F02D41/30

CPC分类号： F02B19/12 ,  F02B19/1057 ,  F02D41/3017 ,  Y02T10/125

摘要： A fuel injection system for an engine is described. The fuel injection system includes a prechamber assembly mounted on a cylinder head of the engine. The prechamber assembly includes a prechamber located upstream of a combustion chamber of the engine and configured to receive air-fuel mixture. Further, the prechamber assembly includes a fuel injector to controllably supply fuel into the prechamber, where the supplied fuel mixes with the air-fuel mixture to form a homogeneous mixture of air and fuel at a predefined stoichiometric ratio. The prechamber assembly also includes a spark plug disposed at a downstream region of the prechamber, the downstream region being proximal to the combustion chamber of the engine. The fuel injection system also includes a controller operably coupled to the fuel injector, where the controller is configured to control the predefined stoichiometric ratio of air to fuel in in the prechamber.

摘要翻译： 描述了用于发动机的燃料喷射系统。 燃料喷射系统包括安装在发动机的气缸盖上的预燃室组件。 前置机组件包括位于发动机的燃烧室的上游并被配置为接收空气 - 燃料混合物的预燃室。 此外，前室组件包括燃料喷射器以可控地将燃料供应到预燃室中，其中供应的燃料与空气 - 燃料混合物混合以以预定的化学计量比形成空气和燃料的均匀混合物。 预制室组件还包括设置在预室的下游区域处的火花塞，下游区域靠近发动机的燃烧室。 燃料喷射系统还包括可操作地耦合到燃料喷射器的控制器，其中控制器配置成控制预燃室中空气与燃料的预定化学计量比。

公开(公告)号：US20150354481A1

公开(公告)日：2015-12-10

申请号：US14296069

申请日：2014-06-04

申请人： Cummins Inc.

发明人： Samuel C. Geckler ,  Anthony Kyle Perfetto

IPC分类号： F02D41/00 ,  F02B19/10 ,  F02B19/12

CPC分类号： F02D41/0057 ,  F02B19/108 ,  F02D41/005 ,  F02D41/3094 ,  Y02T10/125 ,  Y02T10/47

摘要： A system and method are disclosed for controlling an engine using pre-chamber ignition. According to at least one aspect of the present disclosure, the system includes a pre-chamber ignition system in communication with a combustion cylinder of the engine. The ignition system includes a pre-chamber having a pre-chamber injector, an igniter, and a pre-chamber port structured to introduce a purge gas into the pre-chamber. The system further includes an exhaust gas recirculation system to dilute a main charge introduced into the cylinder. The ignition system improves engine efficiency and lowers emissions.

摘要翻译： 公开了一种用于使用预室内点火来控制发动机的系统和方法。 根据本公开的至少一个方面，该系统包括与发动机的燃烧气缸连通的预燃机点火系统。 点火系统包括具有预喷射器，点火器和被构造成将吹扫气体引入预燃室中的预燃室端口的预燃室。 该系统还包括用于稀释引入气缸的主要装料的排气再循环系统。 点火系统提高发动机效率并降低排放。

公开(公告)号：US20150247445A1

公开(公告)日：2015-09-03

申请号：US14711433

申请日：2015-05-13

申请人： David A. Blank

发明人： David A. Blank

IPC分类号： F02B19/02 ,  F02B19/14 ,  F02B19/10 ,  F02B19/12

CPC分类号： F02B19/02 ,  F01C1/22 ,  F02B1/12 ,  F02B11/00 ,  F02B19/1019 ,  F02B19/1095 ,  F02B19/12 ,  F02B19/14 ,  F02B19/165 ,  F02B19/18 ,  F02B23/06 ,  F02B2023/085 ,  F02D19/0644 ,  F02D19/0689 ,  F02D19/0692 ,  F02D19/081 ,  F02D37/02 ,  F02D41/0025 ,  F02D41/3041 ,  F02D41/3094 ,  F02D2041/389 ,  F02M26/23 ,  F02M26/35 ,  Y02T10/12 ,  Y02T10/125 ,  Y02T10/17 ,  Y02T10/36

摘要： A process for enhancement of combustion control in rotary and reciprocating IC engines for improving fuel efficiency by enabling leaner combustion at higher compression ratios. Embodiments supporting this process employ a fluid of higher heat of vaporization and higher volatility but lower ignitability than the fuel to increase the compression ratio required for self ignition. These have secondary chambers in a cylinder periphery for radical ignition (“RI”) species generation in an earlier cycle for use in a later cycle. These chambers communicate with a main chamber via conduits. Measures regulate the RI species generated and provided to the main chamber. These species then alter the dominant chain-initiation reactions of the main combustion ignition mechanism by lowering the heat and the fuel ratios required for combustion. This improves combustion in radical ignition engines and radical augmented spark and compression ignition engines.

摘要翻译： 一种用于增强旋转和往复式I​​C发动机中的燃烧控制的方法，以通过在较高的压缩比下实现更冷的燃烧来提高燃料效率。 支持该方法的实施例采用具有较高的汽化热和较高挥发性但比燃料低的可燃性的流体，以增加自燃所需的压缩比。 它们具有圆筒周边中的二次室，用于在稍后循环中使用的较早循环中的自发点火（“RI”）物种。 这些室通过导管与主室连通。 措施调节生成并提供给主室的RI物种。 这些物质然后通过降低燃烧所需的热量和燃料比来改变主燃烧点火机构的主要链起始反应。 这可以改善激进点火发动机和激增火花和压缩点火发动机的燃烧。

公开(公告)号：US20150240710A1

公开(公告)日：2015-08-27

申请号：US14706457

申请日：2015-05-07

申请人： Pratt & Whitney Canada Corp.

发明人： Jean THOMASSIN ,  Nigel DAVENPORT ,  Eugene GEKHT

IPC分类号： F02B55/08 ,  F02B53/02 ,  F02B53/10 ,  F02B19/12 ,  F02B53/12

CPC分类号： F02B55/08 ,  F01C1/22 ,  F01C11/006 ,  F01C20/06 ,  F01C20/10 ,  F01C20/24 ,  F01C21/06 ,  F01C21/08 ,  F01C21/106 ,  F01C21/18 ,  F01C21/183 ,  F02B19/12 ,  F02B53/02 ,  F02B53/10 ,  F02B53/12 ,  F04C29/0092 ,  F04C2240/80 ,  Y02T10/125 ,  Y02T10/17

摘要： A rotary engine having an insert in a peripheral wall of the stator body, the insert being made of a material having a greater heat resistance than that of the peripheral wall, having a subchamber defined therein and having an inner surface, the subchamber communicating with the cavity through at least one opening defined in the inner surface and having a shape forming a reduced cross-section adjacent the opening, a pilot fuel injector having a tip received in the subchamber, an ignition element having a tip received in the subchamber, and a main fuel injector extending through the stator body and having a tip communicating with the cavity at a location spaced apart from the insert. The subchamber has a volume corresponding to from 5% to 25% of a sum of the minimum volume and the volume of the subchamber. A method of injecting heavy fuel into a Wankel engine is also discussed.

摘要翻译： 一种旋转式发动机，其具有在定子体的周壁中的插入件，该插入件由具有比周壁更高的耐热性的材料制成，具有限定在其中并具有内表面的子室，该子室与 空腔通过限定在内表面中的至少一个开口，并且具有形成与开口相邻的减小的横截面的形状;引燃燃料喷射器，其具有容纳在子室中的尖端，点火元件，其具有接收在子室中的尖端，以及 主燃料喷射器延伸穿过定子体并且具有在与插入件间隔开的位置处与空腔连通的尖端。 子室具有对应于子室的最小体积和体积的总和的5％至25％的体积。 还讨论了将重质燃料注入汪克尔发动机的方法。

公开(公告)号：US09010293B2

公开(公告)日：2015-04-21

申请号：US13152944

申请日：2011-06-03

申请人： David A. Blank

发明人： David A. Blank

IPC分类号： F02B19/08 ,  F02B55/02 ,  F02B19/12 ,  F02B53/02 ,  F02D35/02 ,  F02D41/30 ,  F02B19/18 ,  F02M25/07 ,  F02B53/00

CPC分类号： F02B19/10 ,  F02B19/12 ,  F02B19/18 ,  F02B53/02 ,  F02B55/02 ,  F02B2023/085 ,  F02B2053/005 ,  F02D35/02 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/3035 ,  F02M26/35 ,  F02P15/02 ,  Y02T10/125 ,  Y02T10/128 ,  Y02T10/17

摘要： A process is provided for improving combustion control and fuel efficiency in rotary and reciprocating IC engines by enabling leaner combustion at higher compression ratios using less heat for ignition. Embodiments employ secondary chambers of minimal total volume within a cylinder periphery. These chambers communicate with a main chamber via conduits and enable a radical ignition (“RI”) species generation and supply process that starts in earlier cycles to be augmented and used in later cycles. Measures regulate the RI species generated and provided to the main chamber. These species alter dominant chain-initiation reactions of the combustion ignition mechanism. Also employed when preferable are fluids of higher heat of vaporization and volatility but lower ignitability than the fuel. This process improves combustion in radical ignition engines and radical augmented spark and compression ignition engines.

摘要翻译： 提供了一种用于通过使用较少热量进行点火更高压缩比的燃烧而改善旋转和往复式I​​C发动机的燃烧控制和燃料效率的方法。 实施例采用在气缸周边内具有最小总体积的二次室。 这些室通过导管与主室连通，并且能够在早期循环中开始的自发点火（“RI”）物种生成和供应过程被增加并在稍后的循环中使用。 措施调节生成并提供给主室的RI物种。 这些物种改变了燃烧点火机构的主要起始反应。 当优选的是具有比燃料更高的汽化和挥发性但低燃点的流体的情况。 这个过程改善了激进点火发动机和激增火花和压缩点火发动机的燃烧。

公开(公告)号：US08844491B2

公开(公告)日：2014-09-30

申请号：US13510152

申请日：2010-09-27

申请人： Martin Weinrotter ,  Igor Orlandini ,  Werner Herden ,  Pascal Woerner ,  Juergen Raimann

发明人： Martin Weinrotter ,  Igor Orlandini ,  Werner Herden ,  Pascal Woerner ,  Juergen Raimann

IPC分类号： F02P23/04 ,  F02B19/04 ,  F02C7/264 ,  F02P13/00 ,  F02B19/12

CPC分类号： F02P23/04 ,  F02B19/04 ,  F02B19/12 ,  F02C7/264 ,  F02P13/00 ,  Y02T10/125

摘要： A laser spark plug, e.g., for an internal combustion engine of a motor vehicle or a heavy-duty gas engine, has an antechamber for receiving an ignitable medium and a combustion chamber window which separates the antechamber from a part of the laser spark plug facing away from the combustion chamber. At least one flow-guiding element is provided in the antechamber and is situated in such a way that it deflects a fluid flow, which occurs in the antechamber and moves toward the combustion chamber window, into a radially inner direction.

摘要翻译： 例如，用于机动车辆或重型燃气发动机的内燃机的激光火花塞具有用于接收可燃介质和燃烧室窗的前厅，该燃烧室窗将前厅与激光火花塞的一部分面对 远离燃烧室。 至少一个导流元件设置在前厅中，并且以这样的方式设置，使得其在前厅中发生并且朝向燃烧室窗口移动的流体流向径向内部的方向。

公开(公告)号：US08783226B2

公开(公告)日：2014-07-22

申请号：US13122138

申请日：2009-09-17

申请人： Tsukasa Imamura ,  Tomohiko Sugimoto ,  Tetsuo Tokuoka ,  Hiroyoshi Ishii

发明人： Tsukasa Imamura ,  Tomohiko Sugimoto ,  Tetsuo Tokuoka ,  Hiroyoshi Ishii

IPC分类号： F02P5/00 ,  F02D19/02 ,  F02M21/02 ,  F02B19/12 ,  F02B19/10 ,  G01L23/22 ,  F02P5/152

CPC分类号： F02B19/108 ,  F02B19/12 ,  F02D19/024 ,  F02M21/0275 ,  F02M21/0278 ,  F02M21/0284 ,  F02P5/152 ,  F02P13/00 ,  G01L23/225 ,  Y02T10/125 ,  Y02T10/32 ,  Y02T10/46

摘要： A knocking control system for a gas engine of the present invention, being configured to calculate a knocking occurrence ratio (SEV) which is a ratio of a cycle number of cycles in which a predetermined knocking occurs for a period of the cycles of the predetermined cycle number, to the predetermined cycle number, decide a target value of an ignition timing of the ignition device based on a deviation (ΔSEV) between an occurrence ratio delay calculation value (SEVAVE) obtained by performing delay calculation of the knocking occurrence ratio and a predetermined occurrence ratio target value (SEVSET), and drive the ignition device so that the ignition timing reaches a command value (IGN) decided according to the target value.

摘要翻译： 本发明的燃气发动机的爆震控制系统被配置为计算作为预定爆震发生周期的循环次数与预定循环周期之间的比率的爆震发生率（SEV） 根据通过进行爆震发生率的延迟计算获得的发生比延迟计算值（SEVAVE）和通过进行爆震发生率的延迟计算而得到的发生比延迟计算值（SEVAVE）之间的偏差（＆Dgr; SEV），确定点火装置的点火正时的目标值， 预定发生率目标值（SEVSET），并且驱动点火装置，使得点火正时达到根据目标值确定的指令值（IGN）。