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公开(公告)号：US20180163677A1
公开(公告)日：2018-06-14
申请号：US15375551
申请日：2016-12-12
Applicant: Caterpillar Inc.
Inventor： Glenn B. Cox , Stephen R. Lewis , Adrienne M. Brasche , Venkata R. Tatikonda
Abstract: A valve assembly for a fuel pump is provided. The valve assembly may include an inlet valve limited to a first range of travel extending between a fully closed position and a fully opened position of the inlet valve, a valve pin coupled to the inlet valve, an armature pin selectively engaging the valve pin, and an armature coupled to the armature pin and limited to a second range of travel extending between an engaged position and a disengaged position that is less than the first range of travel.
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公开(公告)号：US10662910B2
公开(公告)日：2020-05-26
申请号：US15375551
申请日：2016-12-12
Applicant: Caterpillar Inc.
Inventor： Glenn B. Cox , Stephen R. Lewis , Adrienne M. Brasche , Venkata R. Tatikonda
IPC: F02M37/00
Abstract: A valve assembly for a fuel pump is provided. The valve assembly may include an inlet valve limited to a first range of travel extending between a fully closed position and a fully opened position of the inlet valve, a valve pin coupled to the inlet valve, an armature pin selectively engaging the valve pin, and an armature coupled to the armature pin and limited to a second range of travel extending between an engaged position and a disengaged position that is less than the first range of travel.
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公开(公告)号：US11268471B1
公开(公告)日：2022-03-08
申请号：US17102484
申请日：2020-11-24
Applicant: Caterpillar Inc.
Inventor： Adam C. Hill , Manjunath B. Nagaraja , Stephen R. Lewis
Abstract: A method for identifying a type of a fuel injector installed in an internal combustion engine includes generating a control signal to supply electrical energy from a power source for actuating the fuel injector, monitoring the electrical energy, identifying a pattern in the electrical energy, the pattern being indicative of the type of the fuel injector, and outputting a notification indicative of an incorrect injector type based on the pattern.
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Patent Agency Ranking
公开(公告)号：US20190383254A1
公开(公告)日：2019-12-19
申请号：US16007418
申请日：2018-06-13
Applicant: Caterpillar Inc.
Inventor： Dana R. Coldren , Sana Mahmood , Stephen R. Lewis
Abstract: A fuel system for an internal combustion engine includes a common rail and a plurality of fuel injectors connected to the common rail and each including an outlet check, an injection control valve, and an injection rate controller. The injection rate controller varies a flow area to a nozzle of the fuel injector such that a pressure drop through the fuel injector is varied to provide injection rate shaping.
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公开(公告)号：US20190170267A1
公开(公告)日：2019-06-06
申请号：US15833156
申请日：2017-12-06
Applicant: Caterpillar Inc.
Inventor： Bryan Edward Nelson , Sana Mahmood , Stephen R. Lewis
Abstract: A valve assembly for a pump includes an electrical actuator having a stator and an armature, where the armature includes a top armature surface facing the stator and having an inwardly stepped-up profile that forms a raised surface at a radially inward location, and a lower, gap-forming surface at a radially outward location that forms a gap between the armature and the stator when the electrical actuator is activated to facilitate displacing fluid and avoiding production of high velocity, potentially damaging fluid flows.
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公开(公告)号：US20130306750A1
公开(公告)日：2013-11-21
申请号：US13949870
申请日：2013-07-24
Applicant: Caterpillar Inc.
Inventor： Daniel R. Ibrahim , Stephen R. Lewis , Avinash R. Manubolu
IPC: F02M53/04
CPC classification number: F02M53/043 , F02M47/027
Abstract: A fuel injector includes an injector body forming an actuator portion. An actuator bore is formed in the actuator portion and is at least partially defined by an inner surface and by an end surface. An actuator disposed in the actuator bore and has an outer surface such that a flow channel can be defined between the inner surface of the actuator bore and the outer surface of the actuator. A cooling flow passage is formed in the injector body, in fluid communication with the actuator bore, and is adapted to supply cooling fluid to the actuator bore. A drain passage is formed in the injector body, in fluid communication with the actuator bore. An internal cooling fluid flow path extends from the cooling flow passage, through the flow channel, and from the flow channel through the drain passage.
Abstract translation: 燃料喷射器包括形成致动器部分的喷射器主体。 致动器孔形成在致动器部分中，并且至少部分地由内表面和端表面限定。 致动器设置在致动器孔中并且具有外表面，使得可以在致动器孔的内表面和致动器的外表面之间限定流动通道。 冷却流道形成在喷射器主体中，与致动器孔流体连通，并且适于向致动器孔提供冷却流体。 排出通道形成在喷射器主体中，与致动器孔流体连通。 内部冷却流体流动路径从冷却流道延伸通过流动通道，并且从流动通道通过排放通道延伸。
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公开(公告)号：US10519916B1
公开(公告)日：2019-12-31
申请号：US16007418
申请日：2018-06-13
Applicant: Caterpillar Inc.
Inventor： Dana R. Coldren , Sana Mahmood , Stephen R. Lewis
Abstract: A fuel system for an internal combustion engine includes a common rail and a plurality of fuel injectors connected to the common rail and each including an outlet check, an injection control valve, and an injection rate controller. The injection rate controller varies a flow area to a nozzle of the fuel injector such that a pressure drop through the fuel injector is varied to provide injection rate shaping.
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公开(公告)号：US09341153B2
公开(公告)日：2016-05-17
申请号：US13949870
申请日：2013-07-24
Applicant: Caterpillar Inc.
Inventor： Daniel R. Ibrahim , Stephen R. Lewis , Avinash R. Manubolu
CPC classification number: F02M53/043 , F02M47/027
Abstract: A fuel injector includes an injector body forming an actuator portion. An actuator bore is formed in the actuator portion and is at least partially defined by an inner surface and by an end surface. An actuator disposed in the actuator bore and has an outer surface such that a flow channel can be defined between the inner surface of the actuator bore and the outer surface of the actuator. A cooling flow passage is formed in the injector body, in fluid communication with the actuator bore, and is adapted to supply cooling fluid to the actuator bore. A drain passage is formed in the injector body, in fluid communication with the actuator bore. An internal cooling fluid flow path extends from the cooling flow passage, through the flow channel, and from the flow channel through the drain passage.
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