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公开(公告)号：US20160237882A1
公开(公告)日：2016-08-18
申请号：US15142920
申请日：2016-04-29
Applicant: Caterpillar Inc.
IPC: F02B37/18 , F02B37/013
CPC classification number: F02B37/18 , F02B21/00 , F02B33/44 , F02B37/004 , F02B37/013 , F02B73/00 , F02D25/00 , F02D41/0007 , F02D41/04 , F02D41/062 , Y02T10/144
Abstract: A system having an engine is provided. The system includes a high pressure (HP) turbocharger and a low pressure (LP) turbocharger connected in series with each other. The system also includes a first valve assembly configured to selectively bypass at least a portion of the exhaust from the engine to the LP turbocharger. The system also includes a storage tank configured to store a pressurized fluid and configured to be in fluid communication with the HP turbocharger and the LP turbocharger. The system further includes a second valve assembly in fluid communication with the storage tank, the HP turbocharger and the LP turbocharger. The system also includes a controller operatively coupled to the first valve assembly and the second valve assembly. The controller is configured to selectively operate the first valve assembly and the second valve assembly based on a change in a load requirement on the engine.
Abstract translation: 提供具有发动机的系统。 该系统包括彼此串联连接的高压（HP）涡轮增压器和低压（LP）涡轮增压器。 该系统还包括构造成选择性地将来自发动机的排气的至少一部分旁路至LP涡轮增压器的第一阀组件。 该系统还包括配置成存储加压流体并构造成与HP涡轮增压器和LP涡轮增压器流体连通的储存箱。 该系统还包括与储罐，HP涡轮增压器和LP涡轮增压器流体连通的第二阀组件。 该系统还包括可操作地联接到第一阀组件和第二阀组件的控制器。 控制器被配置为基于发动机上的负载要求的变化来选择性地操作第一阀组件和第二阀组件。
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公开(公告)号：US09784170B2
公开(公告)日：2017-10-10
申请号：US14854095
申请日：2015-09-15
Applicant: Caterpillar Inc.
CPC classification number: F01N13/143 , F01N3/306 , F01N3/323 , F01N3/326 , F01N9/00 , F01N2550/14 , F01N2900/1804 , Y02T10/20 , Y02T10/47
Abstract: A thermal management system for an aftertreatment system includes an air pump and a compressed air rail. The compressed air rail is fluidly connected with the air pump. The thermal management system further includes a first valve located between the compressed air rail and an exhaust outlet pathway. The first valve is configured to selective supply air to the aftertreatment system of the engine. The thermal management system further includes a heater located between the compressed air rail and the first valve. The heater is configured to heat the air before supplying air to the aftertreatment system of the engine.
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公开(公告)号：US20160319717A1
公开(公告)日：2016-11-03
申请号：US15208695
申请日：2016-07-13
Applicant: Caterpillar Inc.
CPC classification number: F01N3/101 , B01D53/9431 , B01D53/9454 , B01D53/9477 , B01D2255/904 , B01D2258/018 , F01N3/00 , F01N3/0842 , F01N3/103 , F01N3/108 , F01N2240/36 , F01N2410/00 , F01N2430/00 , F01N2590/02 , F01N2590/08 , F01N2590/10 , F02D19/02 , F02D29/00 , F02D41/0027 , F02M26/02 , Y02T10/22 , Y02T10/32
Abstract: An engine system is provided. The engine system includes a first engine adapted to generate a first exhaust flow. The engine system includes a first aftertreatment unit associated with the first engine. The first aftertreatment unit receives at least a portion of the first exhaust flow therein. The engine system includes a second engine adapted to generate a second exhaust flow. The engine system also includes a second aftertreatment unit associated with the second engine. The second aftertreatment unit receives the second exhaust flow therein. The engine system further includes a distribution unit coupled to the first aftertreatment unit and the second aftertreatment unit. The distribution unit is adapted to selectively bypass a remaining portion of the first exhaust flow to the second aftertreatment unit. The remaining portion of the first exhaust flow is adapted to introduce an amount of unburned hydrocarbon (CxH2x) in to the second aftertreatment unit.
Abstract translation: 提供发动机系统。 发动机系统包括适于产生第一排气流的第一发动机。 发动机系统包括与第一发动机相关联的第一后处理单元。 第一后处理单元接收其中的第一排气流的至少一部分。 发动机系统包括适于产生第二排气流的第二发动机。 发动机系统还包括与第二发动机相关联的第二后处理单元。 第二后处理单元接收第二排气流。 发动机系统还包括联接到第一后处理单元和第二后处理单元的分配单元。 分配单元适于选择性地将第一排气流的剩余部分旁路到第二后处理单元。 第一排气流的剩余部分适于将一定量的未燃烧烃（C x H x x x）引入第二后处理单元。
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公开(公告)号：US20150369192A1
公开(公告)日：2015-12-24
申请号：US14311646
申请日：2014-06-23
Applicant: Caterpillar Inc.
IPC: F02M61/10
CPC classification number: F02M45/086 , F02B23/0663 , F02M61/1833 , F02M2200/44 , Y02T10/125
Abstract: A fuel injection apparatus for use in a compression ignition engine comprises a first injector tip defining a first set of outlet orifices therethrough and a second injector tip defining a second set of outlet orifices therethrough. The first set of outlet orifices has a first conicity and the second set of outlet orifices has a second conicity. The first conicity is different from the second conicity.
Abstract translation: 用于压缩点火发动机的燃料喷射装置包括限定通过其中的第一组出口孔的第一喷射器尖端和限定通过其的第二组出口孔的第二喷射器尖端。 第一组出口孔具有第一锥度，第二组出口孔具有第二锥度。 第一个锥度与第二个锥度不同。
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公开(公告)号：US12044186B1
公开(公告)日：2024-07-23
申请号：US18526619
申请日：2023-12-01
Applicant: Caterpillar Inc.
Inventor： Kenth I. Svensson , Jonathan W. Anders , Yongli Qi
CPC classification number: F02D19/061 , F02D41/0025
Abstract: Operating an engine system includes autoigniting a first fuel including a plurality of liquid fuels premixed with air, to trigger ignition of a direct-injected main fuel in a first engine cycle, and receiving data indicative of an undesired heat release of combustion of the first fuel. The undesired heat release may include an undesired heat release rate (HRR) modality such as a multistage combustion. Relative amounts of the plurality of the liquid fuels are varied and admitted to the cylinder in a second engine cycle, and the first fuel having the varied relative amounts autoignited to trigger ignition of the direct-injected main fuel in the second engine cycle. The undesired heat release can be limited in the second engine cycle based on the varied relative amounts of the liquid fuels. The first fuel may include a blend of dimethyl ether (DME), methanol (MeOH), and water. The direct-injected main fuel may include MeOH and water. Related apparatus and control logic is also disclosed.
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Patent Agency Ranking
公开(公告)号：US20190063391A1
公开(公告)日：2019-02-28
申请号：US15692408
申请日：2017-08-31
Applicant: Caterpillar Inc.
Inventor： Glen Clifford Martin , Chad Palmer Koci , Kenth I Svensson , Yongli Qi , Eric Donald Wiebrecht
Abstract: A fuel injector assembly for an engine. The engine includes a cylinder head defining a through-hole. The fuel injector assembly includes an insert, having a first end and a second end, configured to be received within the through-hole and coupled to the cylinder head. The insert defines a bore extending from the first end to the second end. The fuel injector assembly further includes a fuel injector including a plurality of orifices, received within the bore of the insert; and a duct structure including a plurality of ducts, coupled to the insert such that the plurality of ducts align with the plurality of orifices to at least partially receive one or more fuel jets from the plurality of orifices of the fuel injector.
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7.发明申请公开(公告)号：US20160084204A1
公开(公告)日：2016-03-24
申请号：US14489685
申请日：2014-09-18
Applicant: Caterpillar Inc.
CPC classification number: F02M26/28 , F02B1/12 , F02D19/10 , F02D41/0032 , F02D41/0065 , F02D41/1446 , F02D2041/0067 , F02M26/05 , F02M26/14 , F02M26/17 , F02M26/32 , F02M26/33 , F02M26/47 , Y02T10/36 , Y02T10/47
Abstract: An exhaust gas recirculation (EGR) system includes an EGR duct configured to effect fluid communication between an exhaust duct and an intake duct of an internal combustion engine; a heat exchanger having a first flow passage and a second flow passage, the first flow passage being in fluid communication with the EGR duct, the second flow passage being configured to receive a heat transfer medium from a heat transfer medium source; an upstream purge valve in fluid communication with the second flow passage of the heat exchanger, and configured to effect selective fluid communication between a purge fluid source and the second flow passage of the heat exchanger; and a controller operatively coupled to the upstream purge valve. The controller is configured to purge the second flow passage of the heat exchanger by opening the upstream purge valve.
Abstract translation: 排气再循环（EGR）系统包括被配置为实现排气管和内燃机的进气管之间的流体连通的EGR管道; 具有第一流路和第二流路的热交换器，所述第一流路与所述EGR管道流体连通，所述第二流路构造成从传热介质源接收传热介质; 上游清洗阀，其与所述热交换器的第二流动通道流体连通，并且构造成实现所述清洗流体源与所述热交换器的所述第二流动通道之间的选择性流体连通; 以及可操作地连接到上游净化阀的控制器。 控制器构造成通过打开上游净化阀来净化热交换器的第二流动通道。
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8.发明申请公开(公告)号：US20220325658A1
公开(公告)日：2022-10-13
申请号：US17229446
申请日：2021-04-13
Applicant: Caterpillar Inc.
Inventor： Chad Palmer Koci , Yongli Qi , Jason Jon Rasmussen , Daniel J. Sordelet
IPC: F02B23/06
Abstract: Operating an engine includes moving a piston in a combustion chamber between a bottom dead center position and a top dead center position in an engine cycle. A fuel is injected into the combustion chamber through a plurality of sets of nozzle outlets varied set-to-set with respect to outlet size and spray angle. Spray jets of the injected fuel are propagated in an impingement-limiting fuel spray pattern that is based on the set-to-set variation in outlet size and spray angle so as to limit dissipation of heat from combustion of the injected fuel to material of the engine by way of a thermal barrier coating (TBC) upon a surface of the combustion chamber.
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公开(公告)号：US10054039B2
公开(公告)日：2018-08-21
申请号：US15142920
申请日：2016-04-29
Applicant: Caterpillar Inc.
IPC: F02B33/44 , F02D23/00 , F02B33/00 , F02B37/18 , F02B37/013 , F02D41/04 , F02D41/06 , F02B21/00 , F02B37/00 , F02B73/00 , F02D25/00 , F02D41/00
CPC classification number: F02B37/18 , F02B21/00 , F02B33/44 , F02B37/004 , F02B37/013 , F02B73/00 , F02D25/00 , F02D41/0007 , F02D41/04 , F02D41/062 , Y02T10/144
Abstract: A system having an engine is provided. The system includes a high pressure (HP) turbocharger and a low pressure (LP) turbocharger connected in series with each other. The system also includes a first valve assembly configured to selectively bypass at least a portion of the exhaust from the engine to the LP turbocharger. The system also includes a storage tank configured to store a pressurized fluid and configured to be in fluid communication with the HP turbocharger and the LP turbocharger. The system further includes a second valve assembly in fluid communication with the storage tank, the HP turbocharger and the LP turbocharger. The system also includes a controller operatively coupled to the first valve assembly and the second valve assembly. The controller is configured to selectively operate the first valve assembly and the second valve assembly based on a change in a load requirement on the engine.
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公开(公告)号：US10012196B1
公开(公告)日：2018-07-03
申请号：US15690407
申请日：2017-08-30
Applicant: Caterpillar Inc.
Inventor： Yongli Qi , Kenth I Svensson , Glen Clifford Martin , Chad Palmer Koci
CPC classification number: F02M61/14 , F02B23/00 , F02B23/0648 , F02B23/0651 , Y02T10/125
Abstract: A duct structure for a fuel injector assembly of an engine includes a first ring structure, a plurality of ducts, a plurality of posts, and an engagement structure. The fuel injector assembly includes a fuel injector having a plurality of orifices to discharge fuel. The first ring structure is configured to be coupled to a cylinder head of the engine, and defines a central axis. The ducts are circularly arrayed around the central axis, and are configured to provide passages to the fuel discharged from the fuel injector. The posts connect the ducts to the first ring structure. Further, the engagement structure is configured to engage with the fuel injector to align the ducts with the orifices such that each of the plurality of ducts is configured to receive fuel discharged from a corresponding one of the plurality of orifices.
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