公开(公告)号：US09670828B2

公开(公告)日：2017-06-06

申请号：US14705352

申请日：2015-05-06

申请人： MTU Friedrichshafen GmbH

发明人： Anko Ernst ,  Udo Sander

IPC分类号： F02B33/44 ,  F01N5/04 ,  F01N3/00 ,  F02B19/14 ,  F02B19/00 ,  F02B19/10 ,  F02B37/00 ,  F02B19/12 ,  F01N13/10

CPC分类号： F02B19/108 ,  F01N13/10 ,  F02B19/1085 ,  F02B19/12 ,  F02B19/14 ,  F02B37/00 ,  F02B43/00 ,  F02D41/0027 ,  F02D41/008 ,  F02M21/0284 ,  Y02T10/125 ,  Y02T10/144 ,  Y02T10/32

摘要： A mixture-charged gas engine includes at least one cylinder. A combustion chamber delimited by a cylinder head, a cylinder wall, and a piston, which can be moved in the cylinder, is arranged in the at least one cylinder, and the combustion chamber is divided into a main combustion chamber and at least one pre-chamber fluidically connected to the main combustion chamber via at least one firing channel. An air-/combustion gas mixture can be supplied to the main combustion chamber via an inlet valve during an intake stroke of the piston. The mixture-charged gas engine is characterized in that a separate combustion gas supply is provided for the at least one pre-chamber.

公开(公告)号：US20170138251A1

公开(公告)日：2017-05-18

申请号：US14939572

申请日：2015-11-12

申请人： Cummins Inc.

发明人： Atsuhiko Watanabe ,  Patrick M. Pierz ,  Darren Ting

IPC分类号： F02B19/18 ,  F02B19/12

CPC分类号： F02B19/18 ,  F02B19/10 ,  F02B19/1004 ,  F02B19/1019 ,  F02B19/108 ,  F02B19/12 ,  F02P13/00 ,  F02P15/006 ,  Y02T10/125

摘要： An engine includes a cylinder having an internal combustion chamber and extending longitudinally, a cylinder head coupled to the cylinder, and a fuel-fed pre-chamber positioned within a portion of the cylinder head. The pre-chamber includes a pre-chamber volume and plurality of nozzle holes extending from the pre-chamber volume. The engine also includes an ignition source positioned longitudinally above the pre-chamber volume and a locating member positioned on at least one of the pre-chamber and the cylinder head. The locating member is configured to position the pre-chamber in a predetermined orientation within the cylinder head.

公开(公告)号：US09638129B2

公开(公告)日：2017-05-02

申请号：US14377532

申请日：2013-02-15

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Hideki Nishio ,  Junnosuke Andou

IPC分类号： F02D41/30 ,  F02D35/02 ,  F02B19/10 ,  F02M21/02 ,  F02D19/02 ,  F02B29/04 ,  F02D41/00 ,  F02B19/12

CPC分类号： F02D41/3011 ,  F02B19/1023 ,  F02B19/12 ,  F02B29/0443 ,  F02D19/023 ,  F02D19/025 ,  F02D35/02 ,  F02D35/023 ,  F02D41/0027 ,  F02D41/009 ,  F02D2200/1015 ,  F02M21/0284 ,  Y02T10/125 ,  Y02T10/32

摘要： A controller for a gas engine includes a cycle detection unit 67 configured to detect a crank angle period of a single combustion cycle of an engine including a plurality of cylinders based on a crank angle detection value inputted from a crank angle detector 75, a misfire detection unit 69 configured to detect a misfire in a combustion chamber 37 based on an in-cylinder pressure detection value inputted from the in-cylinder pressure detector 59, and a simultaneous misfire determination unit 73 configured to determine a simultaneous misfire of more than one cylinder when a total number of cylinders where the misfire is detected in the single combustion cycle by the misfire detection unit 69 is not less than a preset threshold value of a cylinder number. The fuel gas to all of the cylinders is shut off when the simultaneous misfire of more than one cylinder in the single combustion cycle is determined by the simultaneous misfire determination unit 73.

公开(公告)号：US09638093B2

公开(公告)日：2017-05-02

申请号：US14690004

申请日：2015-04-17

申请人： David A. Blank

发明人： David A. Blank

IPC分类号： F02B19/10 ,  F02D35/02 ,  F02B19/18 ,  F02D41/00 ,  F02B19/12 ,  F02B53/02 ,  F02B55/02 ,  F02D41/30 ,  F02M26/35 ,  F02B53/00 ,  F02B23/08 ,  F02P15/02

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.

公开(公告)号：US09599251B2

公开(公告)日：2017-03-21

申请号：US14374968

申请日：2012-12-20

申请人： HYUNDAI HEAVY INDUSTRIES CO., LTD.

发明人： Dae-Jin Lee ,  Dae-Yeoul Jung ,  Sung-Hyeok Kim ,  Kwang-Cheol Heo ,  Jong-Suk Kim

IPC分类号： F16K31/48 ,  F02M21/02 ,  F02B19/10 ,  F02B19/12 ,  F02M61/20 ,  F16K3/24 ,  F16K31/44 ,  F16K27/02 ,  F01L3/08

CPC分类号： F16K31/485 ,  F01L3/08 ,  F02B19/108 ,  F02B19/12 ,  F02M21/0242 ,  F02M21/0251 ,  F02M21/0269 ,  F02M21/0275 ,  F02M61/20 ,  F16K3/24 ,  F16K27/0209 ,  F16K31/44 ,  Y02T10/125 ,  Y02T10/32

摘要： A check valve driving device for injecting gas, which enables an accurate operation of a check valve for injecting gas and long-term usage by enhancing durability, comprises: an upper portion fixing block which moves vertically by coupling onto a yoke repeating vertical movements; a lower portion fixing block which is coupled to a prechamber at a lower portion of the yoke; a roller which is rotatably coupled onto the upper portion fixing block, and of which a center portion diameter is bigger than diameters of both end portions; a guide, which is rotatably coupled onto the lower portion fixing block, for rotating when a curved surface on one side thereof comes into contact with the roller moving vertically; an operation piece, which is rotatably coupled onto the lower portion fixing block, wherein a front end of the operation piece moves vertically in accordance with the rotation of the guide; and a pressing rod which is coupled to the front end of the operation piece, and which is lowered in accordance with the lowering of the front end of the operation piece.

公开(公告)号：US20170044970A1

公开(公告)日：2017-02-16

申请号：US15332718

申请日：2016-10-24

申请人： Woodward, Inc.

发明人： Domenico Chiera ,  David C. Petruska ,  Gregory James Hampson

IPC分类号： F02B19/12 ,  F02P13/00 ,  F02P23/04 ,  F02P15/00 ,  F02P21/02

CPC分类号： F02B19/12 ,  F02B19/16 ,  F02P9/007 ,  F02P13/00 ,  F02P15/001 ,  F02P21/02 ,  F02P23/04 ,  H01T13/32 ,  H01T13/54 ,  Y02T10/125

摘要： A pre-chamber spark plug that includes a shell. Additionally, the pre-chamber spark plug includes an insulator disposed within the shell. In a particular embodiment, a center electrode has a first portion surrounded by the insulator, and a second portion that extends from the insulator into a pre-chamber. The pre-chamber defined by the shell. In a further embodiment, a ground electrode is attached to the insulator. In particular embodiments, the ground electrode is tubular in shape and includes an inner spark surface ring spaced in surrounding relation to the center electrode to create a spark gap, an outer ring attached to the shell, and a plurality of rounded spokes connecting the inner and outer rings. In a particular embodiment, the ground and center electrodes accommodate attachment of precious metal alloys to increase electrode surface life. In another embodiment the ground electrode and insulator is coaxial to the center electrode.

摘要翻译： 包括壳体的预燃烧器火花塞。 此外，预燃烧器火花塞包括设置在壳体内的绝缘体。 在特定实施例中，中心电极具有由绝缘体包围的第一部分和从绝缘体延伸到预充电室的第二部分。 由壳体定义的预制室。 在另一实施例中，接地电极附接到绝缘体。 在特定实施例中，接地电极是管状形状并且包括内部火花表面环，该内部火花表面环围绕中心电极间隔开以产生火花间隙，附接到壳体的外环以及连接内部和 外圈。 在特定实施例中，接地和中心电极适应贵金属合金的附着以增加电极的表面寿命。 在另一个实施例中，接地电极和绝缘体与中心电极同轴。

公开(公告)号：US09562465B2

公开(公告)日：2017-02-07

申请号：US14338511

申请日：2014-07-23

申请人： Hyundai America Technical Center, Inc. ,  Hyundai Motor Company ,  Kia Motors Corporation

发明人： Nayan Engineer

IPC分类号： F02B19/00 ,  F02B19/16 ,  F02B19/10 ,  F02B19/12 ,  F02B23/10 ,  F02B3/06 ,  F02B19/14 ,  F02B1/04 ,  F02B19/02

CPC分类号： F02B19/16 ,  F02B1/04 ,  F02B3/06 ,  F02B19/02 ,  F02B19/1095 ,  F02B19/12 ,  F02B19/14 ,  F02B23/101 ,  F02B2023/102 ,  F02B2023/103 ,  Y02T10/125

摘要： In one embodiment, a combustion system for an engine is disclosed. The system includes a cylinder block that defines a cylinder bore and opposing pre-chambers located along a circumference of the cylinder bore. The system also includes a fuel injector located equidistant from the circumference of the cylinder bore that injects fuel in a direction perpendicular to a diameter of the cylinder bore. The system further includes a piston located within the cylinder bore that has a substantially conically shaped crown having fuel direction grooves that direct the fuel from the fuel injector towards the opposing pre-chambers.

摘要翻译： 在一个实施例中，公开了一种用于发动机的燃烧系统。 该系统包括限定气缸孔的气缸体和沿着气缸孔的圆周设置的相对的预制室。 该系统还包括一个等距离缸筒圆周的燃料喷射器，该燃料喷射器沿垂直于气缸孔直径的方向喷射燃料。 该系统还包括位于气缸孔内的活塞，其具有基本上圆锥形的冠部，其具有将燃料从燃料喷射器引向相对的前室的燃料方向槽。

公开(公告)号：US20170009730A1

公开(公告)日：2017-01-12

申请号：US14795908

申请日：2015-07-10

申请人： Caterpillar Inc.

发明人： Arnold Myoungjin KIM ,  James M. SCHULTZ

IPC分类号： F02P9/00 ,  F02P13/00 ,  F02P23/04 ,  F02B19/10 ,  F02B19/12

CPC分类号： F02P9/002 ,  F02B19/108 ,  F02B19/12 ,  F02P3/00 ,  F02P9/007 ,  F02P13/00 ,  F02P23/04 ,  F02P23/045 ,  Y02T10/125

摘要： An ignition system for use with an engine is disclosed. The ignition system may have a pre-combustion chamber in fluid communication with a combustion chamber associated with the engine, and a fuel injection device configured to inject a fuel mixture directly into the pre-combustion chamber. The ignition system may also have a spark plug configured to ignite the fuel mixture within the pre-combustion chamber, and a controller in communication with a primary energy supply and an enhanced energy supply. The controller may be configured to direct a first current from the enhanced energy supply to the spark plug after the fuel mixture is injected into the pre-combustion chamber. The controller may also be configured to direct a second current from the primary energy supply to the spark plug just after the first current is being directed to the spark plug. The second current may have a frequency that is lower than the first current.

摘要翻译： 公开了一种用于发动机的点火系统。 点火系统可以具有与与发动机相关联的燃烧室流体连通的预燃烧室，以及被配置为将燃料混合物直接喷射到预燃烧室中的燃料喷射装置。 点火系统还可以具有火花塞，该火花塞被配置为点燃燃烧室内的燃料混合物，以及与一次能量供应和增强的能量供应连通的控制器。 控制器可以被配置为在将燃料混合物注入到预燃烧室中之后，将来自增强的能量供应的第一电流引导到火花塞。 控制器还可以被配置为在第一电流被引导到火花塞之后将第一电流从初级能量供应引导到火花塞。 第二电流可以具有低于第一电流的频率。

公开(公告)号：US09441528B2

公开(公告)日：2016-09-13

申请号：US14966907

申请日：2015-12-11

申请人： CUMMINS INTELLECTUAL PROPERTY, INC.

发明人： Patrick M. Pierz

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

CPC分类号： F02B19/1009 ,  F02B19/12 ,  F02B19/16 ,  Y02T10/125

摘要： This disclosure relates to an improved prechamber device for an internal combustion engine. The prechamber device is positioned adjacent to a combustion chamber. The improved prechamber device is configured to improve removal of heat from the prechamber device, particularly in the area adjacent to the combustion chamber.

公开(公告)号：US09435255B2

公开(公告)日：2016-09-06

申请号：US14779061

申请日：2014-04-08

申请人： Kenneth W. Cowans

发明人： Kenneth W. Cowans

IPC分类号： F02D15/04 ,  F02B37/04 ,  F16L37/26 ,  F02B37/10 ,  F02B37/12 ,  F02B19/06 ,  F02B75/04 ,  F02B77/11 ,  F02B5/02 ,  F02B19/12 ,  F02B1/12 ,  F02B33/40 ,  F02B37/16 ,  F02B39/10 ,  F02B75/02 ,  F02M35/10 ,  F02B19/00

CPC分类号： F02B37/04 ,  F02B1/12 ,  F02B5/02 ,  F02B19/06 ,  F02B19/12 ,  F02B33/40 ,  F02B37/10 ,  F02B37/12 ,  F02B37/16 ,  F02B39/10 ,  F02B75/02 ,  F02B75/04 ,  F02B75/042 ,  F02B77/11 ,  F02B2019/006 ,  F02D15/04 ,  F02M35/10157 ,  F16L37/26 ,  Y02T10/146

摘要： One of the two combustion chambers of an internal combustion engine using variable compression ratio and fuel charge, VCRC engine, is improved. These improvements involve adding another, second combustion chamber for mixing products of the first combustion with engine air and refining the insulation of engine heat in the engine process.

摘要翻译： 使用可变压缩比和燃料充量VCRC发动机的内燃机的两个燃烧室中的一个被改进。 这些改进涉及添加另一个第二燃烧室，用于将第一燃烧产物与发动机空气混合并在发动机过程中精炼发动机热量的绝缘。