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公开(公告)号：US09279391B2
公开(公告)日：2016-03-08
申请号：US13868339
申请日：2013-04-23
Applicant: Caterpillar Inc.
Inventor： Dianqi Fang , Daniel Puckett
IPC: F02M43/04 , F02M21/02 , F02D19/06 , F02D19/10 , F02M47/02 , F02M55/00 , F02M55/02 , F02M63/02 , F02M63/00
CPC classification number: F02M21/0284 , F02D19/0621 , F02D19/0647 , F02D19/0694 , F02D19/105 , F02M21/0281 , F02M43/04 , F02M47/027 , F02M55/002 , F02M55/02 , F02M63/0019 , F02M63/0064 , F02M63/0295 , F02M2200/44 , Y02T10/32 , Y02T10/36
Abstract: A dual fuel system for an internal combustion engine includes a gaseous fuel subsystem and a liquid fuel subsystem. A plurality of fuel injectors each define a gaseous fuel passage fluidly connected to a gaseous fuel manifold of the gaseous fuel subsystem, a liquid fuel passage fluidly connected to a liquid fuel manifold of the liquid fuel subsystem, and a liquid fuel leak path from the liquid fuel passage to the gaseous fuel passage. A liquid fuel purging mechanism includes a drain conduit and at least one valve positioned fluidly between the drain conduit and the gaseous fuel manifold, and being adjustable to fluidly connect the drain conduit to the gaseous fuel manifold, to drain leaked liquid fuel to a low pressure outlet.
Abstract translation: 用于内燃机的双燃料系统包括气体燃料子系统和液体燃料子系统。 多个燃料喷射器各限定一个气体燃料通道，其流体地连接到气体燃料子系统的气体燃料歧管，流体连接到液体燃料子系统的液体燃料歧管的液体燃料通道，以及来自液体的液体燃料泄漏路径 燃料通向气体燃料通道。 液体燃料清除机构包括排水管道和至少一个阀，其位于排水管道和气体燃料歧管之间流体流动，并且可调节以将排水管道流体连接到气体燃料歧管，以将泄漏的液体燃料排出到低压 出口。
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公开(公告)号：US20200263648A1
公开(公告)日：2020-08-20
申请号：US16279967
申请日：2019-02-19
Applicant: Caterpillar Inc.
Inventor： Dianqi Fang , Daniel Bumpus , Diego Caceres , David Martin , Sudhindra Ayanji
Abstract: A fuel injector assembly includes a fuel injector and an annular filter coupled with the fuel injector, the annular filter being snap-fitted with one of a nozzle case or an injector body of the fuel injector and slip-fitted with the other of the nozzle case or the injector body. The annular filter has a perforated wall forming a filtration screen covering an actuation fluid inlet formed in the nozzle case and positioned upstream of the actuation fluid inlet to trap particulates in incoming actuation fluid.
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公开(公告)号：US20180019577A1
公开(公告)日：2018-01-18
申请号：US15212078
申请日：2016-07-15
Applicant: Caterpillar Inc.
Inventor： Michael Gerstner , Timothy Graham , Dianqi Fang
CPC classification number: H01T13/20 , F02F1/242 , F02P13/00 , H01T13/08 , H01T13/467 , H01T13/54 , H01T21/02
Abstract: A remanufactured sparkplug includes a housing, an insulator within the housing, and first and second electrodes. The first electrode and the second electrode form a plurality of spark gaps at a plurality of new spark gap locations, and a plurality of spark-induced erosions are formed in the second electrode at a plurality of former spark gap locations that are circumferentially offset from the new spark gap locations.
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公开(公告)号：US09859688B1
公开(公告)日：2018-01-02
申请号：US15212078
申请日：2016-07-15
Applicant: Caterpillar Inc.
Inventor： Michael Gerstner , Timothy Graham , Dianqi Fang
CPC classification number: H01T13/20 , F02F1/242 , F02P13/00 , H01T13/08 , H01T13/467 , H01T13/54 , H01T21/02
Abstract: A remanufactured sparkplug includes a housing, an insulator within the housing, and first and second electrodes. The first electrode and the second electrode form a plurality of spark gaps at a plurality of new spark gap locations, and a plurality of spark-induced erosions are formed in the second electrode at a plurality of former spark gap locations that are circumferentially offset from the new spark gap locations.
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公开(公告)号：US20170241392A1
公开(公告)日：2017-08-24
申请号：US15046497
申请日：2016-02-18
Applicant: Caterpillar Inc.
Inventor： Norman D. Knapp , David E. Martin , Dianqi Fang
IPC: F02M63/00
CPC classification number: F02M63/0035 , F02M57/023 , F02M59/368 , F02M63/0015 , F02M63/0022 , F02M63/0054 , F02M2200/304 , F02M2200/502 , F16K31/0655
Abstract: A fuel injector control valve assembly is provided that comprises a valve actuating mechanism, a cage member that is operatively connected to the valve actuating mechanism, a poppet valve member that is operatively connected to the cage member and that defines a perimeter and a longitudinal axis, a valve sleeve member that is disposed about the poppet valve member, a shim that includes an upper surface that at least partially makes uninterrupted contact with the cage member and a lower surface that at least partially makes uninterrupted contact with the sleeve member, thereby providing a fluid seal about the perimeter of the poppet valve member, and a bounce limiting mechanism that is adjacent the shim and that is interposed between the cage member and at least one of either the poppet valve member and the valve sleeve member.
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Patent Agency Ranking
公开(公告)号：US20140311451A1
公开(公告)日：2014-10-23
申请号：US13868339
申请日：2013-04-23
Applicant: CATERPILLAR INC.
Inventor： Dianqi Fang , Daniel Puckett
IPC: F02M21/02
CPC classification number: F02M21/0284 , F02D19/0621 , F02D19/0647 , F02D19/0694 , F02D19/105 , F02M21/0281 , F02M43/04 , F02M47/027 , F02M55/002 , F02M55/02 , F02M63/0019 , F02M63/0064 , F02M63/0295 , F02M2200/44 , Y02T10/32 , Y02T10/36
Abstract: A dual fuel system for an internal combustion engine includes a gaseous fuel subsystem and a liquid fuel subsystem. A plurality of fuel injectors each define a gaseous fuel passage fluidly connected to a gaseous fuel manifold of the gaseous fuel subsystem, a liquid fuel passage fluidly connected to a liquid fuel manifold of the liquid fuel subsystem, and a liquid fuel leak path from the liquid fuel passage to the gaseous fuel passage. A liquid fuel purging mechanism includes a drain conduit and at least one valve positioned fluidly between the drain conduit and the gaseous fuel manifold, and being adjustable to fluidly connect the drain conduit to the gaseous fuel manifold, to drain leaked liquid fuel to a low pressure outlet.
Abstract translation: 用于内燃机的双燃料系统包括气体燃料子系统和液体燃料子系统。 多个燃料喷射器各限定一个气体燃料通道，其流体地连接到气体燃料子系统的气体燃料歧管，流体连接到液体燃料子系统的液体燃料歧管的液体燃料通道，以及来自液体的液体燃料泄漏路径 燃料通向气体燃料通道。 液体燃料清除机构包括排水管道和至少一个阀，其位于排水管道和气体燃料歧管之间流体流动，并且可调节以将排水管道流体连接到气体燃料歧管，以将泄漏的液体燃料排出到低压 出口。
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公开(公告)号：US11098685B2
公开(公告)日：2021-08-24
申请号：US16279967
申请日：2019-02-19
Applicant: Caterpillar Inc.
Inventor： Dianqi Fang , Daniel Bumpus , Diego Caceres , David Martin , Sudhindra Ayanji
Abstract: A fuel injector assembly includes a fuel injector and an annular filter coupled with the fuel injector, the annular filter being snap-fitted with one of a nozzle case or an injector body of the fuel injector and slip-fitted with the other of the nozzle case or the injector body. The annular filter has a perforated wall forming a filtration screen covering an actuation fluid inlet formed in the nozzle case and positioned upstream of the actuation fluid inlet to trap particulates in incoming actuation fluid.
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公开(公告)号：US09879645B2
公开(公告)日：2018-01-30
申请号：US15046497
申请日：2016-02-18
Applicant: Caterpillar Inc.
Inventor： Norman D. Knapp , David E. Martin , Dianqi Fang
CPC classification number: F02M63/0035 , F02M57/023 , F02M59/368 , F02M63/0015 , F02M63/0022 , F02M63/0054 , F02M2200/304 , F02M2200/502 , F16K31/0655
Abstract: A fuel injector control valve assembly is provided that comprises a valve actuating mechanism, a cage member that is operatively connected to the valve actuating mechanism, a poppet valve member that is operatively connected to the cage member and that defines a perimeter and a longitudinal axis, a valve sleeve member that is disposed about the poppet valve member, a shim that includes an upper surface that at least partially makes uninterrupted contact with the cage member and a lower surface that at least partially makes uninterrupted contact with the sleeve member, thereby providing a fluid seal about the perimeter of the poppet valve member, and a bounce limiting mechanism that is adjacent the shim and that is interposed between the cage member and at least one of either the poppet valve member and the valve sleeve member.
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公开(公告)号：US09228507B2
公开(公告)日：2016-01-05
申请号：US13732673
申请日：2013-01-02
Applicant: Caterpillar Inc.
Inventor： Cory A. Brown , Joshua W. Steffen , Dana R. Coldren , Alan R. Stockner , Hoisan Kim , Dianqi Fang
Abstract: A dual fuel common rail system may be operated in a regular mode in which a relatively large charge of gaseous fuel is ignited by compression igniting a relatively small injection quantity of liquid diesel fuel. The dual fuel system may be operated in a single fuel limp home mode in which liquid diesel fuel is injected at higher pressures. Over pressurization of the gaseous fuel side of the fuel system due to leaked liquid fuel is avoided by regularly injecting leaked liquid fuel, but not gaseous fuel, from the gaseous nozzle outlet set during the limp home mode of operation.
Abstract translation: 双燃料共轨系统可以以常规模式操作，其中相对较大量的气体燃料通过压缩点燃，点燃相对较小量的液体柴油燃料。 双燃料系统可以在单一燃料跛行家庭模式中操作，其中液体柴油燃料在较高压力下喷射。 由于泄漏的液体燃料，燃料系统的气体燃料侧的过度加压通过在跛行家庭操作模式期间从设置的气体喷嘴出口定期注入泄漏的液体燃料而不是气体燃料来避免。
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公开(公告)号：US20140182552A1
公开(公告)日：2014-07-03
申请号：US13732673
申请日：2013-01-02
Applicant: CATERPILLAR INC.
Inventor： Cory A. Brown , Joshua W. Steffen , Dana R. Coldren , Alan R. Stockner , Hoisan Kim , Dianqi Fang
IPC: F02M69/50
Abstract: A dual fuel common rail system may be operated in a regular mode in which a relatively large charge of gaseous fuel is ignited by compression igniting a relatively small injection quantity of liquid diesel fuel. The dual fuel system may be operated in a single fuel limp home mode in which liquid diesel fuel is injected at higher pressures. Over pressurization of the gaseous fuel side of the fuel system due to leaked liquid fuel is avoided by regularly injecting leaked liquid fuel, but not gaseous fuel, from the gaseous nozzle outlet set during the limp home mode of operation.
Abstract translation: 双燃料共轨系统可以以常规模式操作，其中相对较大量的气体燃料通过压缩点燃，点燃相对较小量的液体柴油燃料。 双燃料系统可以在单一燃料跛行家庭模式中操作，其中液体柴油燃料在较高压力下喷射。 由于泄漏的液体燃料，燃料系统的气体燃料侧的过度加压通过在跛行家庭操作模式期间从设置的气体喷嘴出口定期注入泄漏的液体燃料而不是气体燃料来避免。
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