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公开(公告)号：US11598300B2
公开(公告)日：2023-03-07
申请号：US17176268
申请日：2021-02-16
Applicant: Caterpillar Inc.
Inventor： Jonathan W. Anders , Bobby John , Robert Campion
Abstract: Operating an engine includes injecting a first charge of liquid fuel using a first set of nozzle outlets in a fuel injector, and injecting a second charge of liquid fuel using a second set of nozzle outlets in a fuel injector. The first charge is autoignited in a first engine cycle, and the second charge is autoignited in a second engine cycle, and may be used to pilot ignite a charge of gaseous fuel. Operating the engine further includes limiting errors in targeting of the second charge of liquid fuel caused by transitioning the engine from a first combination to a second combination of speed, load, and boost, by varying an injection pressure of the liquid fuel from the first engine cycle to the second engine cycle.
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公开(公告)号：US20210164428A1
公开(公告)日：2021-06-03
申请号：US17176268
申请日：2021-02-16
Applicant: Caterpillar Inc.
Inventor： Jonathan W. Anders , Bobby John , Robert Campion
Abstract: Operating an engine includes injecting a first charge of liquid fuel using a first set of nozzle outlets in a fuel injector, and injecting a second charge of liquid fuel using a second set of nozzle outlets in a fuel injector. The first charge is autoignited in a first engine cycle, and the second charge is autoignited in a second engine cycle, and may be used to pilot ignite a charge of gaseous fuel. Operating the engine further includes limiting errors in targeting of the second charge of liquid fuel caused by transitioning the engine from a first combination to a second combination of speed, load, and boost, by varying an injection pressure of the liquid fuel from the first engine cycle to the second engine cycle.
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公开(公告)号：US10989153B2
公开(公告)日：2021-04-27
申请号：US16106665
申请日：2018-08-21
Applicant: Caterpillar Inc.
Inventor： Jonathan W. Anders , Bobby John , Robert Campion
Abstract: Operating an engine includes injecting a first charge of liquid fuel using a first set of nozzle outlets in a fuel injector, and injecting a second charge of liquid fuel using a second set of nozzle outlets in a fuel injector. The first charge is autoignited in a first engine cycle, and the second charge is autoignited in a second engine cycle, and may be used to pilot ignite a charge of gaseous fuel. Operating the engine further includes limiting errors in targeting of the second charge of liquid fuel caused by transitioning the engine from a first combination to a second combination of speed, load, and boost, by varying an injection pressure of the liquid fuel from the first engine cycle to the second engine cycle.
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24.发明申请公开(公告)号：US20200291875A1
公开(公告)日：2020-09-17
申请号：US16355210
申请日：2019-03-15
Applicant: Caterpillar Inc.
Inventor： Jonathan W. Anders , Bobby John
Abstract: A method of controlling a dual fuel engine system includes adjusting a phasing control parameter such as air-fuel ratio (AFR), based on a phasing signal to limit an error in a phasing of combustion of gaseous fuel. The cylinder is switched to a dual fuel liquid pilot-ignited mode by commanding direct injection of an early pilot shot of liquid fuel, based on the adjustment to the phasing control parameter, and production of a spark to ignite gaseous fuel in the cylinder. Switching the cylinder to the dual fuel liquid pilot-ignited mode is completed by commanding direct injection of an early pilot shot and a second pilot shot of liquid fuel to ignite gaseous fuel in response to combustion of the early and second pilot shots in the cylinder.
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公开(公告)号：US20200224604A1
公开(公告)日：2020-07-16
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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Patent Agency Ranking
公开(公告)号：US20200063704A1
公开(公告)日：2020-02-27
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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公开(公告)号：US10563632B2
公开(公告)日：2020-02-18
申请号：US15832295
申请日：2017-12-05
Applicant: Caterpillar Inc.
Inventor： Glen Clifford Martin , Jonathan W. Anders , Robert M. Campion , Bobby John
Abstract: A fuel injector includes a nozzle including at least one outer orifice. The at least one outer orifice selectively injects a first fuel. An outer check is disposed movably within the nozzle. The outer check includes at least one first orifice and at least one second orifice. The at least one first orifice and the at least one second orifice are disposed circumferentially spaced apart with respect to one another. Each of the at least one first orifice and the at least one second orifice selectively injects a second fuel. An inner check is disposed movably and concentrically within the outer check. The at least one outer orifice is adapted to selectively injects at least one of the first fuel and the second fuel therethrough based on a position of each of the outer check and the inner check.
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公开(公告)号：US20180283315A1
公开(公告)日：2018-10-04
申请号：US15475848
申请日：2017-03-31
Applicant: Caterpillar Inc.
Inventor： Bobby John , Jonathan W. Anders , David Todd Montgomery , Kenth I. Svensson
Abstract: A combustion system for an internal combustion engine includes a cylinder having a cylinder wall defining a bore, a piston disposed inside the bore, a combustion chamber delimited by a cylinder head, the cylinder wall, and the piston. The piston includes a piston bowl defining a floor portion, and at least one scooped recess extending radially outwardly from a periphery of the piston bowl. The internal combustion engine further includes a fuel injector configured to inject fuel into the combustion chamber as a plurality of fuel jets at a main injection timing such that each fuel jet contacts the floor portion of the piston bowl and follows a profile of the piston bowl and enter the at least one scooped recess. Furthermore, at least one of the plurality of is deflected by the at least one scooped recess away from the cylinder wall.
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公开(公告)号：US20180119637A1
公开(公告)日：2018-05-03
申请号：US15338643
申请日：2016-10-31
Applicant: Caterpillar Inc.
Inventor： Bobby John , Jonathan W. Anders
CPC classification number: F02F3/28 , F02B23/0624 , F02F1/242 , F02F3/24 , F02M61/14
Abstract: A piston has a piston crown portion forming at least one arcuate indent in aligned fashion with a fuel jet discharged into a combustion chamber. Each arcuate event forms lobes, which separate the fuel jet into portions, or is tiered, to accommodate fuel jet portions being discharged into the combustion chamber at different times. Each lobe or tier includes an entry surface, a recirculation surface and a wall to separate it from adjacent lobes or tiers, respectively.
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公开(公告)号：US20160298529A1
公开(公告)日：2016-10-13
申请号：US14685295
申请日：2015-04-13
Applicant: Caterpillar Inc.
Inventor： Jonathan Anders , Kenth Svensson , Bobby John , Chad Koci , Christopher Gehrke , Glen Martin , Timothy Bazyn
CPC classification number: F02B23/0627 , F02B23/02 , F02B23/0648 , F02F1/24 , Y02T10/125
Abstract: A ducted combustion system is disclosed. The ducted combustion system includes a combustion chamber bound by a flame deck surface of a cylinder head of an internal combustion engine and by a piston top surface of a piston disposed within the internal combustion engine. The system includes a fuel injector including a plurality of orifices, the plurality of orifices injecting fuel into the combustion chamber as a plurality of fuel jets. The system includes a duct structure defining a plurality of ducts and disposed within the combustion chamber between the flame deck surface and the piston top surface, the plurality of ducts being disposed such that each of the plurality of fuel jets at least partially enters one of the plurality of ducts upon being injected into the combustion chamber.
Abstract translation: 公开了一种管道燃烧系统。 管道燃烧系统包括由内燃机的气缸盖的火焰甲板表面和设置在内燃机内的活塞的活塞顶表面结合的燃烧室。 该系统包括具有多个喷嘴的燃料喷射器，多个喷嘴将燃料作为多个燃料喷射喷射到燃烧室中。 该系统包括限定多个管道并且设置在火焰甲板表面和活塞顶表面之间的燃烧室内的管道结构，多个管道被布置成使得多个燃料喷嘴中的每一个至少部分地进入 多个管道被注入到燃烧室中。
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