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公开(公告)号：US20200063701A1
公开(公告)日：2020-02-27
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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公开(公告)号：US20190145340A1
公开(公告)日：2019-05-16
申请号：US15814958
申请日：2017-11-16
Applicant: Caterpillar Inc.
Inventor： Bobby John , Glen Clifford Martin , Jonathan W. Anders , Robert M. Campion
CPC classification number: F02D41/3094 , F02D19/0694 , F02D41/0025 , F02D41/40 , F02M43/04 , F02M45/086 , F02M61/12 , F02M61/1806 , F02M2200/46
Abstract: A fuel injector includes a nozzle having at least one first orifice. The at least one first orifice selectively injects a first fuel. An outer check is located movably within the nozzle. The outer check includes at least one second orifice. The at least one second orifice selectively injects a second fuel. An inner check is located movably and concentrically within the outer check. The at least one first orifice is adapted to selectively inject 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：US20190003438A1
公开(公告)日：2019-01-03
申请号：US15635360
申请日：2017-06-28
Applicant: Caterpillar Inc.
Inventor： David Ginter , Chad Koci , Russell P. Fitzgerald , Jonathan W. Anders
Abstract: A fuel injector for an internal combustion engine is disclosed. The fuel injector includes a body defining an orifice. The orifice is configured to provide passage to a fuel into a combustion chamber of the internal combustion engine. The orifice includes an inlet port having a first oval shape and an outlet port having a second oval shape. The second al shape is orthogonal to the first oval shape. Moreover, a transition from the first oval shape to the second oval shape defines a stagnation plane, facilitating an exit of the fuel as a fan spray from the outlet port.
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公开(公告)号：US10087882B2
公开(公告)日：2018-10-02
申请号：US15338643
申请日：2016-10-31
Applicant: Caterpillar Inc.
Inventor： Bobby John , Jonathan W. Anders
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：US09869270B1
公开(公告)日：2018-01-16
申请号：US15338651
申请日：2016-10-31
Applicant: Caterpillar Inc.
Inventor： Jonathan W. Anders , Bobby John
CPC classification number: F02B23/0687 , F02B23/0624 , F02B23/0678
Abstract: An internal combustion engine includes a combustion chamber having a piston, the piston having at least one arcuate indent of a first type formed in the top surface, and at least one arcuate indent of a second type, wherein the first type includes a first recirculation surface having a concave shape at a first radius and extending along a spiral direction adjacent the entry surface, and wherein the second type includes a second recirculation surface having a concave shape at a second radius that is smaller than the first radius. During operation, a fuel jet provided into the first type occupies a radially outward portion of the combustion chamber, and a fuel jet provided into the second type occupies a central portion of the combustion chamber.
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Patent Agency Ranking
公开(公告)号：US20240200513A1
公开(公告)日：2024-06-20
申请号：US18082099
申请日：2022-12-15
Applicant: Caterpillar Inc.
Inventor： Jonathan W. Anders , Bobby John , Chad Palmer Koci , Naga Krishna Chaitanya Kavuri
CPC classification number: F02M21/023 , F02F1/24 , F02F2001/244
Abstract: A gaseous fuel engine includes an engine housing having a cylinder block with a combustion cylinder therein, and an engine head including an intake port, an exhaust port, a fuel port, and an igniter bore, each extending to a fire deck. The gaseous fuel engine includes a fuel admission valve movable to close and open the fuel port. A non-axisymmetric clearance is defined between an inner port surface and the fuel admission valve and directionally biases a flow of gaseous fuel from the fuel port. Related methodology is also disclosed.
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公开(公告)号：US11415083B1
公开(公告)日：2022-08-16
申请号：US17371794
申请日：2021-07-09
Applicant: Caterpillar Inc.
Inventor： Chaitanya Kavuri , Jonathan W. Anders
Abstract: An engine system includes a first cylinder including a first piston, a second cylinder including a second piston, and a fuel injector fluidly connected to the first cylinder. The first cylinder is a combustion cylinder, and the second cylinder is an expansion cylinder. The second cylinder is fluidly connected to the first cylinder when the first piston is in at least one position in the first cylinder. The fuel injector is configured to deliver hydrogen gas to the first cylinder.
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18.发明申请公开(公告)号：US20210040925A1
公开(公告)日：2021-02-11
申请号：US16531826
申请日：2019-08-05
Applicant: Caterpillar Inc. , Perkins Engines Company Limited
Inventor： Bobby John , Robert Michael Campion , Jonathan W. Anders
Abstract: A fuel system for an internal combustion engine includes a fuel injector having a nozzle with first and second sets of spray orifices formed therein. The fuel injector also includes a first and a second outlet check movable to open and close the first and second sets of spray orifices. Spray plume ducts are supported at fixed orientations relative to a nozzle of the fuel injector, and each are oriented in-line with a center axis defined by one of the spray orifices. The spray plume ducts may be directly attached to the fuel injector or to a duct carrier mounted to an engine head.
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19.发明授权公开(公告)号：US10900450B1
公开(公告)日：2021-01-26
申请号：US16531826
申请日：2019-08-05
Applicant: Caterpillar Inc. , Perkins Engines Company Limited
Inventor： Bobby John , Robert Michael Campion , Jonathan W. Anders
Abstract: A fuel system for an internal combustion engine includes a fuel injector having a nozzle with first and second sets of spray orifices formed therein. The fuel injector also includes a first and a second outlet check movable to open and close the first and second sets of spray orifices. Spray plume ducts are supported at fixed orientations relative to a nozzle of the fuel injector, and each are oriented in-line with a center axis defined by one of the spray orifices. The spray plume ducts may be directly attached to the fuel injector or to a duct carrier mounted to an engine head.
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公开(公告)号：US10823106B1
公开(公告)日：2020-11-03
申请号：US16410269
申请日：2019-05-13
Applicant: Caterpillar Inc.
Inventor： Bobby John , Jonathan W. Anders
Abstract: Operating a dual fuel engine system includes injecting an early shot and a second shot of a liquid fuel into a cylinder after a late closing timing of an intake valve, and producing a first and a second pilot flame based on ignition of the early shot and the second shot of liquid fuel. The early shot of liquid fuel is targeted such that a distribution of ignition points of the first pilot flame is biased outwardly of a combustion bowl in the piston. Propagation of the first and second pilot flames from geometrically distinct ignition locations rapidly increases pressure and temperature in the cylinder to provide fast combustion of a lean mixture of a gaseous fuel and air in a main charge in the cylinder.
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