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11.发明授权公开(公告)号：US09551303B2
公开(公告)日：2017-01-24
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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Patent Agency Ranking
12.发明授权公开(公告)号：US12215639B1
公开(公告)日：2025-02-04
申请号：US18513760
申请日：2023-11-20
Applicant: Caterpillar Inc.
Inventor： Kenth I. Svensson , Jonathan W. Anders , Yongli Qi
Abstract: Operating an engine system includes calculating a crank angle timing term corresponding to an in-cylinder temperature sufficient for autoignition of a first fuel injected at a first injection location. Operating an engine system further includes calculating, based on the crank angle timing term, at least one of an injection amount or an injection duration, to increase the in-cylinder temperature sufficiently via burning of the first fuel to ignite a second fuel injected into a mixture of the first fuel and pressurized intake air. The first fuel may include a blend of dimethyl ether (DME), methanol (MeOH), and water. Based on expected progression of in-cylinder temperatures, and fuel injection amount and/or duration based thereon, desirable controllability of combustion phasing and/or other combustion properties may be realized.
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公开(公告)号：US10711752B2
公开(公告)日：2020-07-14
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
IPC: F02M61/16 , F02M61/14 , F02M61/18 , F02F1/40 , F02B23/00 , F02B23/06 , F02F1/24 , F02F3/00 , F02F7/00 , F02M53/04 , F01P3/16
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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公开(公告)号：US20170241368A1
公开(公告)日：2017-08-24
申请号：US15046667
申请日：2016-02-18
Applicant: Caterpillar Inc.
Inventor： Jonathan W. Anders , Christopher R. Gehrke , Yongli Qi
CPC classification number: F02D41/403 , F02B23/00 , F02B23/0651 , F02B23/0669 , F02D41/405 , F02D2041/389 , Y02T10/125 , Y02T10/44
Abstract: A ducted combustion system for an internal combustion. The ducted combustion system includes a combustion chamber, a fuel injector in fluid communication with the combustion chamber and configured to inject a sequence of at least two fuel charges into a combustion chamber during a combustion cycle and one or more ducts disposed within the combustion chamber and configured to receive at least a part of the fuel charges.
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公开(公告)号：US20170074149A1
公开(公告)日：2017-03-16
申请号：US14854095
申请日：2015-09-15
Applicant: Caterpillar Inc.
IPC: F01N13/14
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.
Abstract translation: 用于后处理系统的热管理系统包括空气泵和压缩空气导轨。 压缩空气导轨与空气泵流体连接。 热管理系统还包括位于压缩空气轨道和排气出口路径之间的第一阀。 第一阀构造成选择性地向发动机的后处理系统供给空气。 热管理系统还包括位于压缩空气导轨和第一阀之间的加热器。 加热器被配置为在向发动机的后处理系统供应空气之前加热空气。
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公开(公告)号：US20150258482A1
公开(公告)日：2015-09-17
申请号：US14726639
申请日：2015-06-01
Applicant: Caterpillar Inc.
CPC classification number: B01D46/0068 , F01N3/0233 , F01N3/2066 , F01N3/22 , F01N3/323 , F01N9/00 , F01N2610/1493 , F01N2900/1804 , Y02T10/24 , Y02T10/47
Abstract: A purging system for an engine system is disclosed. The engine system includes an engine and one or more to-be-purged sub-systems. The purging system includes a centralized purging unit with one or more compressed air sources to store and provide compressed air. The compressed air sources are fluidly communicable with each of the to-be-purged sub-systems. A control valve assembly includes one or more valves that are operably positioned between the compressed air sources and the to-be-purged sub-systems. A controller, which is in control communication with the control valve assembly, is configured to alternate the valves between an active state and an inactive state. This is to vary the fluid communication between the compressed air sources and at least one of the to-be-purged sub-systems. This alteration is based on a set of predefined threshold conditions.
Abstract translation: 公开了一种用于发动机系统的清洗系统。 发动机系统包括发动机和一个或多个要被清除的子系统。 清洗系统包括具有一个或多个压缩空气源的集中清洗单元，用于存储和提供压缩空气。 压缩空气源与每个被清除的子系统流体连通。 控制阀组件包括可操作地定位在压缩空气源和被清除的子系统之间的一个或多个阀。 与控制阀组件控制通信的控制器构造成在活动状态和非活动状态之间交替阀。 这是为了改变压缩空气源和至少一个待清除的子系统之间的流体通信。 此更改基于一组预定义的阈值条件。
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