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51.发明授权公开(公告)号：US10934966B2
公开(公告)日：2021-03-02
申请号：US16279564
申请日：2019-02-19
Applicant: Caterpillar Inc.
Inventor： Jonathan W. Anders , Jason Jon Rasmussen , Bobby John
Abstract: A combustion control system for a dual fuel engine includes a combustion control unit structured to receive phasing data for combustion of a main charge of gaseous fuel ignited by way of pilot shots of a liquid fuel, output a pilot fueling command based on the phasing data, and output a valve timing command. The combustion control unit is further structured to vary a phasing of combustion of a main charge of a gaseous fuel ignited by pilot shots of a liquid fuel based on an adjustment to at least one of a pilot shot delivery parameter or a valve timing parameter such as intake valve closing timing from a first engine cycle to a second engine cycle. Control of the intake valve timing can be based on a main pilot shot timing error.
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公开(公告)号：US10823131B2
公开(公告)日：2020-11-03
申请号：US16289594
申请日：2019-02-28
Applicant: Caterpillar Inc.
Inventor： Bobby John , Jonathan Anders
Abstract: Operating a dual fuel engine system includes igniting a main charge of gaseous fuel in response to combustion of an early pilot shot of liquid fuel and production of a spark. Operating the system also includes covarying a spark timing parameter and a pilot shot delivery parameter, and reducing an error in a phasing of combustion of another main charge based on the covarying of the spark timing parameter and the pilot shot delivery parameter.
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公开(公告)号：US10767610B2
公开(公告)日：2020-09-08
申请号：US16107199
申请日：2018-08-21
Applicant: Caterpillar Inc.
Inventor： Jonathan W Anders , Bobby John , Robert Campion
Abstract: A liquid fuel injector for a fuel system in an internal combustion engine includes two injection control valves for controlling two outlet checks. A common nozzle supply cavity is fluidly connected to an inlet passage and supplies each of the two sets of nozzle outlets opened and closed by the outlet checks. A first nozzle outlet set forms a narrower spray angle and has a first combination of outlet number and outlet size, and a second nozzle outlet set forms a wider spray angle and has a second combination of outlet number and outlet size. The first nozzle outlet set has a greater steady flow than the second nozzle outlet set.
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Patent Agency Ranking
54.发明申请公开(公告)号：US20200263627A1
公开(公告)日：2020-08-20
申请号：US16279564
申请日：2019-02-19
Applicant: Caterpillar Inc.
Inventor： Jonathan W. Anders , Jason Jon Rasmussen , Bobby John
Abstract: A combustion control system for a dual fuel engine includes a combustion control unit structured to receive phasing data for combustion of a main charge of gaseous fuel ignited by way of pilot shots of a liquid fuel, output a pilot fueling command based on the phasing data, and output a valve timing command. The combustion control unit is further structured to vary a phasing of combustion of a main charge of a gaseous fuel ignited by pilot shots of a liquid fuel based on an adjustment to at least one of a pilot shot delivery parameter or a valve timing parameter such as intake valve closing timing from a first engine cycle to a second engine cycle. Control of the intake valve timing can be based on a main pilot shot timing error.
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公开(公告)号：US10718257B1
公开(公告)日：2020-07-21
申请号：US16248561
申请日：2019-01-15
Applicant: Caterpillar Inc.
Inventor： Jonathan W. Anders , Bobby John
Abstract: A method of operating a dual-fuel combustion system includes reciprocating a piston between a bottom dead center and a top dead center of a cylinder, the piston including a piston bowl, a circumferentially extending recess located radially outside of the piston bowl, and a plurality of diverters in the recess. The method includes opening an intake valve to introduce a first fuel, and injecting, by a set of fuel injector orifices substantially aligned with the diverters, a second fuel toward the diverters. The method also includes autoigniting the second fuel to ignite the first fuel.
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公开(公告)号：US10704492B1
公开(公告)日：2020-07-07
申请号：US16248604
申请日：2019-01-15
Applicant: Caterpillar Inc.
Inventor： Jonathan W. Anders , Bobby John
Abstract: A piston for an internal combustion engine includes a piston head having a central axis and a top surface. The top surface of the piston includes a piston bowl, a circumferentially extending recess located radially outside the piston bowl, a plurality of diverters located within the recess, and a crown portion located radially outside the recess and extending to an outer surface of the piston.
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公开(公告)号：US10378495B2
公开(公告)日：2019-08-13
申请号：US15796916
申请日：2017-10-30
Applicant: Caterpillar Inc.
Inventor： Bobby John , Glen Martin , Jonathan W. Anders , Robert Campion
Abstract: A fuel system includes a fuel injector having a fuel passage and a purging fluid passage formed therein. A nozzle tip inner surface defines a sac forming a blind end of the fuel passage in the fuel injector. A coaxial concentric check assembly includes a purging check movable to admit a purging fluid such as pressurized air into the fuel passage to purge the sac of fuel. Reduced injector dribble is observed from the purging of fuel.
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公开(公告)号：US20160327000A1
公开(公告)日：2016-11-10
申请号：US14706448
申请日：2015-05-07
Applicant: Caterpillar Inc.
Inventor： Bobby John
IPC: F02M61/14
CPC classification number: F02M61/14 , F02M61/06 , F02M61/1813 , F02M61/182 , F02M61/1833 , F02M61/1846 , F02M61/18 , F02M61/184 , F02M61/1853 , F02M61/1866 , F02M61/1873
Abstract: A fuel injector for an internal combustion engine is disclosed. The fuel injector includes a tip in fluid connection with a combustion chamber of the engine and includes an orifice for injecting fuel as a fuel jet. The fuel injector includes a protruding member in fluid connection with the first orifice extending from the tip at a protruding angle. The orifice injects the fuel jet into the first protruding member. The fuel injector includes a plurality of extension members in fluid connection with the protruding member and includes at least, a first extension member and a second extension member. The first and second extension members may extend from the protruding member at extension angles. The fuel jet may be distributed into, at least, a first distributed jet and a second distributed jet when the first fuel jet flows from the protruding member to the first plurality of extension members.
Abstract translation: 公开了一种用于内燃机的燃料喷射器。 燃料喷射器包括与发动机的燃烧室流体连接的尖端，并且包括用于喷射燃料作为燃料射流的孔口。 燃料喷射器包括与从顶端以突出角度延伸的第一孔流体连接的突出构件。 孔口将燃料射流注入第一突出构件。 燃料喷射器包括与突出构件流体连接的多个延伸构件，并且至少包括第一延伸构件和第二延伸构件。 第一和第二延伸构件可以从伸出构件以延伸角延伸。 当第一燃料喷射从突出构件流到第一多个延伸构件时，燃料射流可以分布到至少第一分布射流和第二分布射流中。
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