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1. 发明公开

EP2806140A1 Dual fuel engine and method of operating the same 有权
标题翻译： Zweistoffmotor und Betriebsverfahrendafür
公开(公告)号：EP2806140A1
公开(公告)日：2014-11-26
申请号：EP13169226.1
申请日：2013-05-24
申请人： Caterpillar Motoren GmbH & Co. KG
发明人： Sixel, Eike Joachim , Haas, Stefan , Ruschmeyer, Kai , Schmidt, Andre
IPC分类号： F02D19/06 , F02D41/40 , F02D19/10 , F02D41/00
CPC分类号： F02D19/0613 , F02D19/061 , F02D19/0615 , F02D19/0642 , F02D19/105 , F02D35/023 , F02D41/0025 , F02D41/0027 , F02D41/403 , F02D2200/0406 , F02D2200/0414 , Y02T10/36 , Y02T10/44
摘要： In a dual fuel engine operating on a main liquid fuel and a gas fuel, a pilot injector (390) is used to inject a pilot liquid fuel in the gas mode. In order to avoid knocking in the gas mode, the compression ratio of intake air is relatively low. When, for example, heavy fuel oil is used as the main liquid fuel, the pilot injector (390) is used to also provide an injection of a pilot liquid fuel such as diesel in the liquid fuel mode prior to the injection of the main liquid fuel to facilitate combustion of the main liquid fuel with the relatively low compression ratio.
摘要翻译：在主液体燃料和气体燃料操作的双重燃料发动机中，先导喷射器（390）用于以气体模式喷射先导液体燃料。为了避免在气体模式下爆震，进气压缩比相对较低。当例如使用重质燃油作为主液体燃料时，先导喷射器（390）还用于在喷射主液体之前以液体燃料模式提供诸如柴油的先导液体燃料的喷射燃料以促进主要液体燃料以相对低的压缩比燃烧。

2. 发明授权

EP3037646B1 Method for operating internal combustion engines 有权
公开(公告)号：EP3037646B1
公开(公告)日：2018-08-01
申请号：EP14199711.4
申请日：2014-12-22
申请人： Caterpillar Motoren GmbH & Co. KG
发明人： Sixel, Eike Joachim , Holst, Hauke , Banck, Andreas , Ruschmeyer, Kai , Dreves, Jan
IPC分类号： F02D19/06 , F02B19/10 , F02D19/10 , F02D41/00
CPC分类号： F02D19/10 , F02B19/108 , F02B19/1095 , F02D19/0689 , F02D19/0692 , F02D41/0025 , F02D41/0027 , Y02T10/125 , Y02T10/36
摘要： The present disclosure relates to a method for operating an internal combustion engine operating at least partly on gaseous fuel. The internal combustion engine has a main combustion chamber (8) and a pre-combustion chamber assembly (20) with a pre-combustion chamber (36), a gaseous fuel supply channel (46) for supplying gaseous fuel into the pre-combustion chamber (36), and an ignition fuel injector (34) for supplying ignition fuel into the pre-combustion chamber (36). The method may comprise supplying a predefined amount of gaseous fuel into the pre-combustion chamber (36) via the gaseous fuel supply channel (46) for enriching the pre-combustion chamber (36) with gaseous fuel at times between about 210° crankangle before the top dead center and about 180° crankangle after the top dead center, and supplying a predefined amount of liquid ignition fuel into the gaseous fuel enriched pre-combustion chamber (36) via the at least one liquid ignition fuel injector (34).

3. 发明公开

EP2574753A1 Cooling system for two-stage charged engines 审中-公开
标题翻译： Kühlsystemfürzweistufig geladene Motoren
公开(公告)号：EP2574753A1
公开(公告)日：2013-04-03
申请号：EP11182936.2
申请日：2011-09-27
申请人： Caterpillar Motoren GmbH & Co. KG
发明人： Schlemmer-Kelling, Udo , Rickert, Carsten , Ruschmeyer, Kai
IPC分类号： F02B29/04
CPC分类号： F01P7/165 , F01P2060/02 , F02B29/0412 , F02B29/0418 , F02B29/0443 , F02B29/0493 , Y02T10/146
摘要： For flexible cooling of intake air under a range of environmental conditions, a cooling system of a two-stage turbocharged internal combustion engine may comprise a high temperature (HT) cooling circuit (30) and a low temperature (LT) cooling circuit (50). HT cooling circuit (30) may comprise a first pump (32) for pumping a first coolant through the HT cooling circuit (30) and a pre-compressed intake air high temperature cooler (34) for cooling pre-compressed intake air generated by a first compressor (12) of a low pressure stage turbocharger. The LT cooling circuit (50) may comprise a second pump (52) for pumping a second coolant through the LT cooling circuit (50) and a compressed intake air low temperature cooler (54) for cooling compressed intake air generated by a second compressor (14) of a high pressure stage turbocharger by compressing the pre-compressed intake air. The HT cooling circuit (30) may further comprise a compressed intake air high temperature cooler (36) positioned upstream of the compressed intake air low temperature cooler (54). The cooling system may provide for a flexible cooling of the intake air for different environmental situations.
摘要翻译：为了在一定范围的环境条件下进气的柔性冷却，两级涡轮增压内燃机的冷却系统可以包括高温（HT）冷却回路（30）和低温（LT）冷却回路（50）。 HT冷却回路（30）可以包括用于泵送通过HT冷却回路（30）的第一冷却剂的第一泵（32）和用于冷却预压缩进气的预压缩进气空气高温冷却器（34）低压级涡轮增压器的第一压缩机（12）。 LT冷却回路（50）可以包括用于泵送通过LT冷却回路（50）的第二冷却剂的第二泵（52）和用于冷却由第二压缩机产生的压缩进气的压缩进气低温冷却器（54）通过压缩预压缩的进气来实现高压级涡轮增压器。 HT冷却回路（30）还可以包括位于压缩进气低温冷却器（54）上游的压缩进气空气高温冷却器（36）。冷却系统可以为不同的环境情况提供对进气的柔性冷却。

4. 发明公开

EP2752571A1 Method and device for controlling the operation of a dual fuel engine 有权
标题翻译： Verfahren und Vorrichtung zur Steuerung des Betriebs eines Doppelbrennstoffmotors
公开(公告)号：EP2752571A1
公开(公告)日：2014-07-09
申请号：EP13150421.9
申请日：2013-01-07
申请人： Caterpillar Motoren GmbH & Co. KG
发明人： Sixel, Eike Joachim , Haas, Stefan , Banck, Andreas , Rebelein, Werner , Ruschmeyer, Kai
IPC分类号： F02D19/06 , F02D19/08 , F02D13/02 , F01L13/00 , F02D41/30 , F02D41/40
CPC分类号： F02D19/0642 , F01L1/146 , F01L1/34 , F01L13/0015 , F01L13/0026 , F01L13/0063 , F01L2013/105 , F01L2013/106 , F01L2105/00 , F02D13/0219 , F02D13/0261 , F02D13/0269 , F02D19/08 , F02D19/105 , F02D41/0025 , F02D41/0027 , F02D41/401 , F02D41/403 , F02D2041/001 , F02M43/00 , F02M45/04 , F02M45/06 , F02M59/102 , F02M59/265 , F02M59/28 , Y02T10/142 , Y02T10/36 , Y02T10/44
摘要： In a dual fuel engine using the FCT technology, a new FCT configuration of an FCT shaft (42) is used to allow transitioning between a liquid fuel mode and a gaseous fuel mode at higher engine loads. According to the new configuration, a liquid fuel main injection is performed relatively late when switching from the liquid fuel mode to the gaseous fuel mode, and in a liquid fuel part load mode. The pilot injection system (60) of the engine is used to provide an early liquid fuel pilot injection during the transition and also in a liquid fuel part load mode to facilitate operating the engine in said mode with the late main injection timing.
摘要翻译：在使用FCT技术的双燃料发动机中，使用FCT轴（42）的新FCT配置来允许在较高发动机负荷下在液体燃料模式和气体燃料模式之间转换。根据新的结构，从液体燃料模式切换到气体燃料模式，并且在液体燃料部分负载模式中，液体燃料主喷射相对较晚地执行。发动机的先导喷射系统（60）用于在过渡期间以及在液体燃料部分负载模式中提供早期液体燃料先导喷射，以便于在主喷射时间晚的情况下以所述模式操作发动机。

5. 发明公开

EP3037646A1 Method for operating internal combustion engines 有权
标题翻译： Verfahren zum Betrieb von Verbrennungsmotoren
公开(公告)号：EP3037646A1
公开(公告)日：2016-06-29
申请号：EP14199711.4
申请日：2014-12-22
申请人： Caterpillar Motoren GmbH & Co. KG
发明人： Sixel, Eike Joachim , Holst, Hauke , Banck, Andreas , Ruschmeyer, Kai , Dreves, Jan
IPC分类号： F02D19/06 , F02B19/10 , F02D19/10 , F02D41/00
CPC分类号： F02D19/10 , F02B19/108 , F02B19/1095 , F02D19/0689 , F02D19/0692 , F02D41/0025 , F02D41/0027 , Y02T10/125 , Y02T10/36
摘要： The present disclosure relates to a method for operating an internal combustion engine operating at least partly on gaseous fuel. The internal combustion engine has a main combustion chamber (8) and a pre-combustion chamber assembly (20) with a pre-combustion chamber (36), a gaseous fuel supply channel (46) for supplying gaseous fuel into the pre-combustion chamber (36), and an ignition fuel injector (34) for supplying ignition fuel into the pre-combustion chamber (36). The method may comprise supplying a predefined amount of gaseous fuel into the pre-combustion chamber (36) via the gaseous fuel supply channel (46) for enriching the pre-combustion chamber (36) with gaseous fuel at times between about 210° crankangle before the top dead center and about 180° crankangle after the top dead center, and supplying a predefined amount of liquid ignition fuel into the gaseous fuel enriched pre-combustion chamber (36) via the at least one liquid ignition fuel injector (34).
摘要翻译：本公开涉及一种用于操作至少部分地基于气态燃料的内燃机的方法。内燃机具有主燃烧室（8）和具有预燃室（36）的预燃室组件（20），用于将气体燃料供应到预燃室中的气体燃料供应通道（46）（36）和点火燃料喷射器（34），用于将点火燃料供给到预燃烧室（36）中。该方法可以包括经由气体燃料供应通道（46）将预定量的气体燃料供应到预燃烧室（36）中，以在约210°的曲柄角之间的时间内用气体燃料富集预燃烧室（36）上死点和上死点之后约180°的曲柄角，并且经由至少一个液体点火燃料喷射器（34）将预定量的液体点燃燃料供应到富含气体燃料的预燃烧室（36）中。

6. 发明授权

EP2806140B1 Dual fuel engine and method of operating the same 有权
标题翻译：双燃料发动机及其操作方法
公开(公告)号：EP2806140B1
公开(公告)日：2016-03-23
申请号：EP13169226.1
申请日：2013-05-24
申请人： Caterpillar Motoren GmbH & Co. KG
发明人： Sixel, Eike Joachim , Haas, Stefan , Ruschmeyer, Kai , Schmidt, Andre
IPC分类号： F02D19/06 , F02D41/40 , F02D19/10 , F02D41/00
CPC分类号： F02D19/0613 , F02D19/061 , F02D19/0615 , F02D19/0642 , F02D19/105 , F02D35/023 , F02D41/0025 , F02D41/0027 , F02D41/403 , F02D2200/0406 , F02D2200/0414 , Y02T10/36 , Y02T10/44

7. 发明授权

EP2752571B1 Method and device for controlling the operation of a dual fuel engine 有权
标题翻译：控制双燃料发动机运行的方法和装置
公开(公告)号：EP2752571B1
公开(公告)日：2015-08-19
申请号：EP13150421.9
申请日：2013-01-07
申请人： Caterpillar Motoren GmbH & Co. KG
发明人： Sixel, Eike Joachim , Haas, Stefan , Banck, Andreas , Rebelein, Werner , Ruschmeyer, Kai
IPC分类号： F02D19/06 , F02D19/08 , F02D13/02 , F01L13/00 , F02D41/30 , F02D41/40
CPC分类号： F02D19/0642 , F01L1/146 , F01L1/34 , F01L13/0015 , F01L13/0026 , F01L13/0063 , F01L2013/105 , F01L2013/106 , F01L2105/00 , F02D13/0219 , F02D13/0261 , F02D13/0269 , F02D19/08 , F02D19/105 , F02D41/0025 , F02D41/0027 , F02D41/401 , F02D41/403 , F02D2041/001 , F02M43/00 , F02M45/04 , F02M45/06 , F02M59/102 , F02M59/265 , F02M59/28 , Y02T10/142 , Y02T10/36 , Y02T10/44

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