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公开(公告)号：US09995203B2
公开(公告)日：2018-06-12
申请号：US15335904
申请日：2016-10-27
Applicant: Caterpillar Inc.
Inventor： Bobby John , Jonathan W. Anders , Kerry A. Delvecchio
CPC classification number: F02B23/0651 , F02B23/0669 , F02F3/24
Abstract: An internal combustion engine includes an engine block having a cylinder bore and a cylinder head having a flame deck surface disposed at one end of the cylinder bore. A piston connected to a rotatable crankshaft and configured to reciprocate within the cylinder bore has a piston crown portion facing the flame deck surface such that a combustion chamber is defined within the cylinder bore and between the piston crown and the flame deck surface. A fuel injector having a nozzle tip disposed in fluid communication with the combustion chamber has at least one nozzle opening configured to inject a fuel jet into the combustion chamber along a fuel jet centerline. At least one arcuate indent is formed in the top surface in aligned fashion with the fuel jet and including an entry surface, a recirculation surface and a wall.
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公开(公告)号：US20180119603A1
公开(公告)日：2018-05-03
申请号：US15335904
申请日：2016-10-27
Applicant: Caterpillar Inc.
Inventor： Bobby John , Jonathan W. Anders , Kerry A. Delvecchio
CPC classification number: F02B23/0651 , F02B23/0669 , F02F3/24
Abstract: An internal combustion engine includes an engine block having a cylinder bore and a cylinder head having a flame deck surface disposed at one end of the cylinder bore. A piston connected to a rotatable crankshaft and configured to reciprocate within the cylinder bore has a piston crown portion facing the flame deck surface such that a combustion chamber is defined within the cylinder bore and between the piston crown and the flame deck surface. A fuel injector having a nozzle tip disposed in fluid communication with the combustion chamber has at least one nozzle opening configured to inject a fuel jet into the combustion chamber along a fuel jet centerline. At least one arcuate indent is formed in the top surface in aligned fashion with the fuel jet and including an entry surface, a recirculation surface and a wall.
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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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34.发明公开公开(公告)号：US20240200520A1
公开(公告)日：2024-06-20
申请号：US18082101
申请日：2022-12-15
Applicant: Caterpillar Inc.
Inventor： Bobby John , Jonathan W. Anders
CPC classification number: F02M43/04 , F02M51/06 , F02M2200/46
Abstract: An engine includes a piston movable in a cylinder and having a combustion bowl, and an annular rim forming a scoop extending axisymmetrically around a piston center axis. A fuel injector tip extends into the cylinder and includes a first orifice set and a second orifice set offset from one another and offset from the piston center axis. A plurality of orifice-rim distances are defined between orifices in the second orifice set and an annular rim of the piston. The orifices in the second orifice set having a range of orifice sizes varied in direct relation to the respective orifice-rim distances. Related methodology is also disclosed.
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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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Patent Agency Ranking
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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38.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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公开(公告)号：US20200224583A1
公开(公告)日：2020-07-16
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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