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1. 发明授权

US09995202B2 Sparkplug assembly with prechamber volume 有权
公开(公告)号：US09995202B2
公开(公告)日：2018-06-12
申请号：US15229821
申请日：2016-08-05
申请人： Caterpillar Inc.
发明人： Martin Willi , Charlie Kim
IPC分类号： F02B19/10 , F02B19/18 , F02P13/00 , F02D41/30
CPC分类号： F02B19/1004 , F02B19/1023 , F02B19/12 , F02B19/18 , F02D41/3005 , F02P13/00
摘要： A sparkplug assembly having a prechamber volume is operatively associated with the combustion chamber of an internal combustion engine such that the prechamber volume is in fluid communication with the combustion chamber. To purge exhaust gasses from the prechamber volume prior to ignition, the sparkplug assembly is operatively associated with a high-pressure air/fuel source that directs a pressurized air/fuel purge charge to the prechamber volume. The pressurized air/fuel purge charge may be at stoichiometric conditions. The high-pressure air/fuel source is configured to direct the pressurized air/fuel purge charge during at least a portion of the compression stroke to maintain a largely stoichiometric mixture of air and fuel in the prechamber volume.

2. 发明授权

US09828905B2 Combustion pre-chamber and method for operating same 有权
公开(公告)号：US09828905B2
公开(公告)日：2017-11-28
申请号：US14799735
申请日：2015-07-15
申请人： Caterpillar Inc.
发明人： Charlie Kim
IPC分类号： F02B43/10 , F02B19/12 , F02B19/00 , F02M26/05 , F02M26/23 , F02M26/35 , F02P13/00 , F02P19/00
CPC分类号： F02B43/10 , F02B19/12 , F02B2019/002 , F02M26/05 , F02M26/23 , F02M26/35 , F02P13/00 , F02P19/00 , Y02T10/125 , Y02T10/32
摘要： An engine includes a main combustion chamber; an intake duct configured to provide a lean fuel-oxidizer mixture to the main combustion chamber; a pre-chamber in fluid communication with the main combustion chamber, the pre-chamber including an ignition energy source operatively coupled to the pre-chamber, and a heating element in thermal communication with the pre-chamber; and a controller operatively coupled to the ignition energy source and the heating element. The controller is configured to initiate combustion of the lean fuel-oxidizer mixture in the main combustion chamber by activating the ignition energy source, and heat fuel and oxidizer in the pre-chamber via the heating element to a temperature sufficient to produce hydrogen peroxide (H2O2) in the pre-chamber.

3. 发明申请

US20170074184A1 Combustion Pre-Chamber and Method for Operating Same 有权
标题翻译：燃烧前室和操作方法相同
公开(公告)号：US20170074184A1
公开(公告)日：2017-03-16
申请号：US14855613
申请日：2015-09-16
申请人： Caterpillar Inc.
发明人： Charlie Kim
IPC分类号： F02D41/00 , F02D41/26 , F02D35/02 , F02B19/12 , F02M26/41 , F02M26/53 , F02D41/24 , F02B19/10
CPC分类号： F02D41/0077 , F02B19/1023 , F02B19/12 , F02D35/022 , F02D35/023 , F02D35/027 , F02D41/005 , F02D41/0065 , F02D41/1497 , F02D41/2406 , F02D41/26 , F02M26/41 , F02M26/53 , F02P9/00 , F02P23/04 , Y02T10/125 , Y02T10/47
摘要： An internal combustion engine includes a pre-chamber assembly including a wall having an internal surface opposite an external surface, the internal surface of the wall defining a combustion pre-chamber and at least one orifice extending to an aperture through the external surface of the wall; a block having an internal surface defining a bore therein; a piston disposed within the bore and configured for reciprocal translation within the bore, the piston, the bore, and the external surface of the wall at least partly defining a main combustion chamber, and the combustion pre-chamber being in fluid communication with the main combustion chamber via the at least one orifice; an energy source operatively coupled to the combustion pre-chamber; and an exhaust gas recirculation (EGR) valve fluidly coupled to the combustion pre-chamber and an exhaust conduit of the internal combustion engine.
摘要翻译：一种内燃机包括预组件组件，其包括具有与外表面相对的内表面的壁，壁的内表面限定了燃烧预制室，以及至少一个孔口，其延伸穿过壁的外表面的孔 ; 具有在其中限定孔的内表面的块; 活塞，其设置在所述孔内并且构造成用于在所述孔内的所述孔，所述活塞，所述孔和所述壁的外表面中的往复平移至少部分地限定主燃烧室，并且所述燃烧预处理室与所述主体流体连通燃烧室经由所述至少一个孔口; 可操作地联接到燃烧预处理室的能量源; 以及流体地联接到燃烧预燃室和内燃机的排气管道的废气再循环（EGR）阀。

4. 发明申请

US20160348569A1 Combustion Pre-Chamber and Method for Operating Same 审中-公开
标题翻译：燃烧前室和操作方法相同
公开(公告)号：US20160348569A1
公开(公告)日：2016-12-01
申请号：US14723616
申请日：2015-05-28
申请人： Caterpillar Inc.
发明人： Charlie Kim
IPC分类号： F02B19/06
CPC分类号： F02B19/108 , F02B19/1023 , F02B19/12 , F02B2019/002 , F02M27/04 , F02P3/02 , F02P5/045 , F02P5/1502 , F02P9/007 , F02P13/00 , F02P15/08 , F02P19/02 , F02P23/04 , Y02T10/125
摘要： An internal combustion engine includes a pre-chamber assembly including a wall having an internal surface opposite an external surface, the internal surface of the wall defining a combustion pre-chamber and at least one orifice extending to an aperture through the external surface of the wall; a block having an internal surface defining a bore therein; a piston disposed within the bore and configured for reciprocal translation within the bore, the piston, the bore, and the external surface of the wall at least partly defining a main combustion chamber, and the combustion pre-chamber being in fluid communication with the main combustion chamber via the at least one orifice; an energy source operatively coupled to the combustion pre-chamber; and a controller operatively coupled to the energy source.
摘要翻译：一种内燃机包括预组件组件，其包括具有与外表面相对的内表面的壁，壁的内表面限定了燃烧预制室，以及至少一个孔口，其延伸穿过壁的外表面的孔 ; 具有在其中限定孔的内表面的块; 活塞，其设置在所述孔内并且构造成用于在所述孔内的所述孔，所述活塞，所述孔和所述壁的外表面中的往复平移至少部分地限定主燃烧室，并且所述燃烧预处理室与所述主体流体连通燃烧室经由所述至少一个孔口; 可操作地联接到燃烧预处理室的能量源; 以及可操作地耦合到能量源的控制器。

5. 发明申请

US20180038269A1 Sparkplug Assembly with Prechamber Volume 有权
公开(公告)号：US20180038269A1
公开(公告)日：2018-02-08
申请号：US15229821
申请日：2016-08-05
申请人： Caterpillar Inc.
发明人： Martin Willi , Charlie Kim
IPC分类号： F02B19/10 , F02P13/00 , F02D41/30 , F02B19/18
CPC分类号： F02B19/1004 , F02B19/1023 , F02B19/12 , F02B19/18 , F02D41/3005 , F02P13/00
摘要： A sparkplug assembly having a prechamber volume is operatively associated with the combustion chamber of an internal combustion engine such that the prechamber volume is in fluid communication with the combustion chamber. To purge exhaust gasses from the prechamber volume prior to ignition, the sparkplug assembly is operatively associated with a high-pressure air/fuel source that directs a pressurized air/fuel purge charge to the prechamber volume. The pressurized air/fuel purge charge may be at stoichiometric conditions. The high-pressure air/fuel source is configured to direct the pressurized air/fuel purge charge during at least a portion of the compression stroke to maintain a largely stoichiometric mixture of air and fuel in the prechamber volume.

6. 发明申请

US20160195041A1 Stable Combustion In Spark-Ignited Lean-Burn Engine 有权
标题翻译：火花点燃式精益燃烧发动机稳定燃烧
公开(公告)号：US20160195041A1
公开(公告)日：2016-07-07
申请号：US14588559
申请日：2015-01-02
申请人： Caterpillar Inc.
发明人： Charlie Kim
IPC分类号： F02M25/14 , F02B43/10 , F02M35/104 , F02B19/12
CPC分类号： F02M25/14 , F02B19/1023 , F02B19/108 , F02B19/12 , F02B43/10 , F02B2019/002 , F02B2043/103 , F02M35/104 , Y02T10/121 , Y02T10/125 , Y02T10/32
摘要： A lean-burn engine may comprise a combustion chamber, an intake manifold configured to provide a lean fuel/air mixture to the combustion chamber, and a pre-chamber in fluid communication with the combustion chamber. The pre-chamber may include a spark igniter configured to initiate combustion of the lean fuel/air mixture in the combustion chamber, and a heating element contained in the pre-chamber. The heating element may be configured to heat the pre-chamber to a temperature sufficient to allow the production of hydrogen peroxide (H2O2) from fuel and air in the pre-chamber.
摘要翻译：稀燃发动机可以包括燃烧室，配置成向燃烧室提供贫燃料/空气混合物的进气歧管以及与燃烧室流体连通的预燃室。预燃室可以包括火花点火器，其构造成启动燃烧室中的贫燃料/空气混合物的燃烧，以及包含在预燃室中的加热元件。加热元件可以被配置为将预制室加热到足以允许从预燃室中的燃料和空气产生过氧化氢（H 2 O 2）的温度。

7. 发明申请

US20170306917A1 Combustion Pre-Chamber and Method for Operating Same 审中-公开
公开(公告)号：US20170306917A1
公开(公告)日：2017-10-26
申请号：US15139077
申请日：2016-04-26
申请人： Caterpillar Inc.
发明人： Charlie Kim
IPC分类号： F02P17/02 , F02M26/20 , F02B19/10 , F02B19/14 , F02D41/00
CPC分类号： F02P17/02 , F02B19/108 , F02B19/12 , F02B19/14 , F02D13/0269 , F02D19/0642 , F02D19/0644 , F02D41/0002 , F02D41/3035 , F02D41/3041 , F02D2041/001 , F02M26/20 , Y02T10/125 , Y02T10/142
摘要： A method for operating an internal combustion engine includes operating at least one cylinder pre-chamber in a homogeneous charge compression ignition (HCCI) combustion mode by providing an air/fuel mixture in the pre-chamber that is fluidly connected to the at least one engine cylinder, creating H and OH radicals in the pre-chamber to achieve an ignition in the at least one pre-chamber, determining whether an ignition timing is advanced or delayed relative to a desired timing, and delaying the ignition when the ignition is advanced relative to the desired timing by cooling the pre-chamber and the at least one engine cylinder.

8. 发明申请

US20160230646A1 Combustion System, Nozzle for Prechamber Assembly, and Method of Making Same 有权
标题翻译：燃烧系统，预燃机组装喷嘴及其制作方法
公开(公告)号：US20160230646A1
公开(公告)日：2016-08-11
申请号：US14617408
申请日：2015-02-09
申请人： Caterpillar Inc.
发明人： Charlie Kim
IPC分类号： F02B19/18 , F02B19/12
CPC分类号： F02B19/18 , F02B19/12 , Y02T10/125
摘要： A nozzle for a prechamber assembly of an engine includes a hollow nozzle body having an outer surface, defining first and second outer openings, and an inner surface, defining an interior chamber and first and second inner openings. The nozzle body defines first and second orifices in communication with the interior chamber. The first orifice extends in a first orifice configuration between the first outer opening and inner opening and defines a first entry path projection extending from the first inner opening into the interior chamber. The second orifice extends in a second orifice configuration between the second outer opening and inner opening and defines a second entry path projection extending from the second inner opening into the interior chamber. The first and second entry path projections intersect at an impingement region in the interior chamber, which is radially offset from a central longitudinal axis of the nozzle.
摘要翻译：用于发动机的前室组件的喷嘴包括具有限定第一和第二外部开口的外表面以及限定内部腔室和第一和第二内部开口的内表面的中空喷嘴体。喷嘴主体限定与内部腔室连通的第一和第二孔。第一孔口以第一孔口构造在第一外部开口和内部开口之间延伸并且限定从第一内部开口延伸到内部腔室中的第一入口通道突出部。第二孔口以第二孔口构造在第二外部开口和内部开口之间延伸并且限定从第二内部开口延伸到内部腔室中的第二入口通道突出部。第一和第二进入路径突起在内腔中的冲击区域相交，该冲击区域从喷嘴的中心纵向轴线径向偏移。

9. 发明申请

US20160195007A1 Combustion Pre-Chamber and Method for Operating Same 有权
标题翻译：燃烧前室和操作方法相同
公开(公告)号：US20160195007A1
公开(公告)日：2016-07-07
申请号：US14799735
申请日：2015-07-15
申请人： Caterpillar Inc.
发明人： Charlie Kim
IPC分类号： F02B43/10 , F02B19/12
CPC分类号： F02B43/10 , F02B19/12 , F02B2019/002 , F02M26/05 , F02M26/23 , F02M26/35 , F02P13/00 , F02P19/00 , Y02T10/125 , Y02T10/32
摘要： An engine includes a main combustion chamber; an intake duct configured to provide a lean fuel-oxidizer mixture to the main combustion chamber; a pre-chamber in fluid communication with the main combustion chamber, the pre-chamber including an ignition energy source operatively coupled to the pre-chamber, and a heating element in thermal communication with the pre-chamber; and a controller operatively coupled to the ignition energy source and the heating element. The controller is configured to initiate combustion of the lean fuel-oxidizer mixture in the main combustion chamber by activating the ignition energy source, and heat fuel and oxidizer in the pre-chamber via the heating element to a temperature sufficient to produce hydrogen peroxide (H2O2) in the pre-chamber.
摘要翻译：发动机包括主燃烧室; 进气管道，其配置成向所述主燃烧室提供贫燃料 - 氧化剂混合物; 与主燃烧室流体连通的预燃室，所述预燃室包括可操作地连接到所述预燃室的点火能量源，以及与所述预燃室热连通的加热元件; 以及可操作地耦合到点火能源和加热元件的控制器。控制器被配置为通过激活点燃能源来启动主燃烧室中的贫燃料 - 氧化剂混合物的燃烧，并且经由加热元件将预燃室中的燃料和氧化剂加热到足以产生过氧化氢（H 2 O 2 ）在前房。

10. 发明授权

US10202959B2 Combustion pre-chamber and method for operating same 有权
公开(公告)号：US10202959B2
公开(公告)日：2019-02-12
申请号：US15139077
申请日：2016-04-26
申请人： Caterpillar Inc.
发明人： Charlie Kim
IPC分类号： F02P17/02 , F02B19/14 , F02B19/10 , F02D41/00 , F02M26/20
摘要： A method for operating an internal combustion engine includes operating at least one cylinder pre-chamber in a homogeneous charge compression ignition (HCCI) combustion mode by providing an air/fuel mixture in the pre-chamber that is fluidly connected to the at least one engine cylinder, creating H and OH radicals in the pre-chamber to achieve an ignition in the at least one pre-chamber, determining whether an ignition timing is advanced or delayed relative to a desired timing, and delaying the ignition when the ignition is advanced relative to the desired timing by cooling the pre-chamber and the at least one engine cylinder.

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