公开(公告)号：EP3551862B1

公开(公告)日：2024-06-26

申请号：EP17877515.1

申请日：2017-12-07

IPC分类号： F01P3/16 ,  F01P3/02 ,  F02B19/10 ,  F02B19/12 ,  F02P13/00 ,  H01T13/54 ,  F02B19/16 ,  F02B19/18 ,  F02M21/02

CPC分类号： F01P3/16 ,  F02B19/10 ,  F02B19/12 ,  F02P13/00 ,  H01T13/54 ,  F02B19/16 ,  F02B19/18 ,  F01P2003/02420130101 ,  F01P3/02 ,  F02M21/0203 ,  F02M21/0275 ,  Y02T10/12 ,  Y02T10/30

公开(公告)号：EP2659556B1

公开(公告)日：2018-05-23

申请号：EP11853843.8

申请日：2011-12-30

申请人： Prometheus Applied Technologies, LLC

发明人： SOTIROPOULOU, Maria-Emmanuella ,  TOZZI, Luigi, P.

IPC分类号： H01T13/20 ,  F02P13/00 ,  F02B19/18 ,  F02B19/10 ,  F02B19/08 ,  F02B19/12

CPC分类号： F02B19/18 ,  F02B19/08 ,  F02B19/1014 ,  F02B19/12 ,  F02P13/00 ,  Y02T10/125

摘要： Generally, embodiments of a pre-chamber unit having a pre-combustion chamber including one or more induction ports in a configuration which achieves flow fields and flow field forces inside the pre-combustion chamber which act to direct flame growth away quenching surface of the pre-combustion chamber.

公开(公告)号：EP3239487A1

公开(公告)日：2017-11-01

申请号：EP16000958.5

申请日：2016-04-28

申请人： Mahle Powertrain LLC

发明人： Bunce, Michael ,  Blaxill, Hugh

IPC分类号： F02B19/10 ,  F02B19/12 ,  F02M57/06 ,  F02B19/18 ,  F02P13/00 ,  F02P15/08 ,  F02P15/10

CPC分类号： F02B19/1085 ,  F02B19/1014 ,  F02B19/1028 ,  F02B19/12 ,  F02B19/18 ,  F02D41/3094 ,  F02M57/06 ,  F02P13/00 ,  F02P15/08 ,  F02P15/10 ,  Y02T10/125

摘要： Internal combustion engine 1 comprising at least one cylinder 2 and a piston 3 supported for repeated reciprocal movement in the cylinder 2 so as to define a combustion chamber 21 of an engine bore diameter A-A, the internal combustion engine 1 further comprising an ignition device 4 arranged in said cylinder 2 having an igniter portion 42 and an fuel injector 43 which are both arranged in a pre-chamber 41, wherein the pre-chamber 41 comprises a plurality of orifices 44 for providing fluid communication between said pre-chamber 41 and the combustion chamber 21, and wherein the plurality of orifices 44 are of an overall orifice area so that the ratio between the overall orifice area and the engine bore diameter A-A ranges from 0.01 mm to 0.2 mm.

摘要翻译： 内燃机1包括至少一个汽缸2和一个活塞3，活塞3被支承以在汽缸2中反复往复运动，以便限定发动机内径AA的燃烧室21，内燃机1还包括布置的点火装置4 在所述气缸2中具有均设置在预燃室41中的点火器部分42和燃料喷射器43，其中预燃室41包括多个孔44，用于提供所述预燃室41与燃烧之间的流体连通 并且其中所述多个孔44具有总孔面积，使得总孔面积与发动机孔直径AA之间的比例在0.01mm至0.2mm的范围内。

公开(公告)号：EP3181855A1

公开(公告)日：2017-06-21

申请号：EP15199889.5

申请日：2015-12-14

申请人： Caterpillar Energy Solutions GmbH

发明人： MAIER, Thomas

IPC分类号： F02B19/18

CPC分类号： F02B19/18 ,  F02B19/108 ,  F02B19/12 ,  F02D19/0642 ,  F02M21/0275 ,  Y02T10/125 ,  Y02T10/36

摘要： The present disclosure relates to a pre-chamber body (26) for a gaseous fuel internal combustion engine (1). The pre-chamber body (26) comprises a pre-chamber (34) and a a plurality of flow transfer channels (22). Each flow transfer channel (22) extends along a flow transfer channel axis (B) from an inner opening (48) via a throat section (54) to an outer opening (50). A cross-section of the flow transfer channels (22) converges the inner openings (48) to the throat sections (54) and diverges from the throat sections (54) to the outer openings (50) along the flow transfer channel axis (B). At least one of the inner opening (48) and the outer opening (50) has an oval shape.

摘要翻译： 本公开涉及用于气体燃料内燃机（1）的预燃室本体（26）。 预燃室主体（26）包括预燃室（34）和多个流动传送通道（22）。 每个流动传输通道（22）沿着流动传输通道轴线（B）从内部开口（48）经由喉部（54）延伸到外部开口（50）。 流动传递通道22的横截面使内开口48会聚到喉部54并且沿着流动传递通道轴线B从喉部54向外开口50分开。 ）。 内部开口（48）和外部开口（50）中的至少一个具有椭圆形状。

公开(公告)号：EP3181854A1

公开(公告)日：2017-06-21

申请号：EP15199883.8

申请日：2015-12-14

申请人： Caterpillar Energy Solutions GmbH

发明人： MAIER, Thomas ,  DREHOBL, Enrico

IPC分类号： F02B19/18

CPC分类号： F02B19/1019 ,  F02B19/1014 ,  F02B19/108 ,  F02B19/12 ,  F02B19/18 ,  F02D19/0642 ,  F02M21/0275 ,  Y02T10/125 ,  Y02T10/36

摘要： The present disclosure relates to a pre-chamber body (26) for an internal combustion engine (1). The pre-chamber body (26) comprises a pre-chamber (34), and a flow transfer passage (40) fluidly connecting the pre-chamber (34) and an exterior of the pre-chamber body (26). The pre-chamber body (26) further comprises at least one backflow channel (52; 60) fluidly connecting the pre-chamber (34) and the flow transfer passage (40). The at least one backflow channel (52; 60) helps to homogenize an air-fuel ratio distribution in the pre-chamber (34) and the flow transfer passage (40).

摘要翻译： 本公开涉及用于内燃机（1）的预燃室主体（26）。 预燃室本体（26）包括预燃室（34）以及流体连通预燃室（34）和预燃室本体（26）的外部的流动传输通道（40）。 预燃室本体（26）还包括流体连接预燃室（34）和流动传输通道（40）的至少一个回流通道（52; 60）。 所述至少一个回流通道（52; 60）有助于均化预燃室（34）和流动传输通道（40）中的空燃比分布。

公开(公告)号：EP3045713A1

公开(公告)日：2016-07-20

申请号：EP15151520.2

申请日：2015-01-16

申请人： Caterpillar Energy Solutions GmbH

发明人： Schäfer, Friedrich ,  Stellwagen, Karl

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

CPC分类号： F02P23/04 ,  F02B19/1023 ,  F02B19/12 ,  F02B19/18 ,  F02P13/00 ,  Y02T10/125

摘要： The present disclosure relates to a laser ignited pre-combustion chamber assembly (20) for gaseous fuel internal combustion engines. The pre-combustion chamber assembly (20) may comprise a plurality of flow transfer passages (28, 28A, 28B) fluidly connecting a pre-combustion chamber (26) to a main combustion chamber (8) and each defining an inflow direction for combustion mixture, and an optical window (34) of a laser ignition device (30). Each of the inflow directions may pass by the optical window (34) for preventing the optical window (34) from being directly blown at by the combustion mixture entering the pre-combustion chamber (28) via the plurality of flow transfer passages (28, 28A, 28B).

摘要翻译： 本公开涉及用于气体燃料内燃机的激光点燃的预燃室组件（20）。 预燃室组件（20）可以包括将预燃室（26）流体连接到主燃烧室（8）的多个流动传输通道（28,28A，28B），并且每个限定用于燃烧的流入方向 混合物和激光点火装置（30）的光学窗口（34）。 每个流入方向可以通过光学窗口（34），以防止光学窗口（34）被经由多个流动传送通道（28）进入预燃室（28）的燃烧混合物直接吹入， 28A，28B）。

公开(公告)号：EP2785996A4

公开(公告)日：2016-03-02

申请号：EP12854161

申请日：2012-11-30

申请人： TOUR ENGINE INC

发明人： TOUR HUGO BENJAMIN ,  TOUR ODED ,  TOUR GILAD

IPC分类号： F02B33/22 ,  F02B19/18 ,  F16K21/04

CPC分类号： F02B33/30 ,  F02B19/02 ,  F02B19/18 ,  F02B33/18 ,  F02B33/22 ,  F02B2710/036

摘要： An internal combustion engine, including a combustion chamber with a first aperture; a compression chamber with a second aperture; and a crossover valve comprising an internal chamber, first and second valve seats, a valve head, and first and second valve faces on the valve head, wherein the first aperture allows fluid communication between the combustion chamber and the internal chamber, the second aperture allows fluid communication between the compression chamber and the internal chamber, the first valve face couples to the first valve seat to occlude the first aperture, and the second valve face couples to the second valve seat to occlude the second aperture.

摘要翻译： 一种内燃机，包括具有第一孔的燃烧室; 具有第二孔的压缩室; 以及交换阀，包括内室，第一阀座和第二阀座，阀头以及阀头上的第一和第二阀面，其中第一孔允许燃烧室和内室之间的流体连通，第二孔允许 压缩室和内部腔室之间的流体连通，第一阀面联接到第一阀座以封闭第一孔，并且第二阀面联接到第二阀座以封闭第二孔。

公开(公告)号：EP2004969A4

公开(公告)日：2015-12-23

申请号：EP07760009

申请日：2007-04-03

申请人： BLANK DAVID A

发明人： BLANK DAVID A

IPC分类号： F02D41/30 ,  F02B1/12

CPC分类号： F02D19/0655 ,  F01C1/22 ,  F02B11/00 ,  F02B19/02 ,  F02B19/1095 ,  F02B19/12 ,  F02B19/165 ,  F02B19/18 ,  F02B23/06 ,  F02D19/0644 ,  F02D19/0689 ,  F02D19/0692 ,  F02D19/081 ,  F02D37/02 ,  F02D41/0027 ,  F02D41/3041 ,  F02D41/3094 ,  F02D2041/389 ,  F02M25/0228 ,  Y02T10/12 ,  Y02T10/125 ,  Y02T10/128 ,  Y02T10/17 ,  Y02T10/36

摘要： A process is provided for enhancing homogeneous combustion and improving ignition in rotary and reciprocating piston IC engines. Physical embodiments supporting this process have secondary chambers embedded in the cylinder periphery to initiate radical ignition (“RI”) species generation in an earlier cycle for use in the main chamber combustion of a later cycle. These communicate with the main chamber via small conduits. Coordinated with the progressions facilitated by these secondary chambers are novel control measures for regulating the quantities of RI species ultimately generated for and conveyed to the later cycle. The pre-determinable presence of RI species so supplied then alters or adds controlled variety to the dominant chain-initiation reactions of the main combustion ignition mechanism of the later cycle. This presence does so by lowering both the heat and the fuel ratios required for starting and sustaining combustion. While this presence dominates in RI mode embodiments, this presence can also assist ignition and combustion in embodiments that are instead dominated by the spark ignition (“SI”) and compression ignition (“CI”) modes. The process results in improved combustion with increased efficiencies, decreased emissions and a wider range of fuel tolerances.

公开(公告)号：EP2659556A4

公开(公告)日：2015-10-21

申请号：EP11853843

申请日：2011-12-30

申请人： PROMETHEUS APPLIED TECHNOLOGIES LLC

发明人： SOTIROPOULOU MARIA-EMMANUELLA ,  TOZZI LUIGI P

IPC分类号： H01T13/20 ,  F02B19/08 ,  F02B19/10 ,  F02B19/12 ,  F02B19/18 ,  F02P13/00

CPC分类号： F02B19/18 ,  F02B19/08 ,  F02B19/1014 ,  F02B19/12 ,  F02P13/00 ,  Y02T10/125

摘要： Generally, embodiments of a pre-chamber unit having a pre-combustion chamber including one or more induction ports in a configuration which achieves flow fields and flow field forces inside the pre-combustion chamber which act to direct flame growth away quenching surface of the pre-combustion chamber.

摘要翻译： 通常，具有预燃室的预燃室单元的实施例包括具有一个或多个感应端口的预燃室，该配置实现了在预燃室内部的流场和流场力，其用于引导火焰生长， - 燃烧室。

公开(公告)号：EP2751408A1

公开(公告)日：2014-07-09

申请号：EP12829007.9

申请日：2012-09-01

申请人： Prometheus Applied Technologies, LLC

发明人： TOZZI, Luigi, P. ,  SOTIROPOULOU, Maria-Emmanuella

IPC分类号： F02B19/08

CPC分类号： F02B19/12 ,  F02B19/08 ,  F02B19/1061 ,  F02B19/18 ,  F02M25/10 ,  F02P9/00 ,  F02P13/00 ,  H01T13/54 ,  Y02T10/125

摘要： A prechamber spark plug may have a prechamber having a pre-determined aspect ratio and hole pattern to achieve particular combustion performance characteristics. The aspect ratio and hole pattern may induce a rotational flow of fuel-air in-filling streams inside the prechamber volume. The rotational flow of the fuel-air mixture may include both radial flow and axial flow characteristics based on the aspect ratio and hole pattern. Axial flow characteristics can include a first axial direction proximate the periphery of the rotational flow and a counter second axial direction approaching the center of the rotational flow. The rotational flow, the radial flow and the axial flow may be adjusted by alteration of the aspect ratio and hole pattern to achieve particular combustion performance characteristics in relation to a wide variety of spark gap geometries.