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公开(公告)号：US20240351573A1
公开(公告)日：2024-10-24
申请号：US18304746
申请日：2023-04-21
Applicant: Caterpillar Inc.
Inventor： Robert M. McDavid , Jonathan W. Anders , Bobby John , Timothy A. Bazyn , Youngjin Son , Aaron W. Costall , Radoslav B. Ivanov
CPC classification number: B60W20/15 , F02B39/10 , F02D41/0027 , F02D41/1454
Abstract: Operating a hybrid power system for a machine includes combusting a direct injected gaseous hydrogen fuel in an engine operating an electrical generator, and increasing a load demand of the hybrid power system. Operating the hybrid power system further includes operating an electrical-assist compressor to supply an increased airflow into the engine based on an increased engine power demand to satisfy the increased load demand. Air-fuel equivalence ratio of the engine (so-called “lambda”) is maintained at a ratio of about 2 or greater to limit NOx emissions, and between a hydrogen fuel misfire limit and a hydrogen fuel preignition limit. Related apparatus and control logic is also disclosed.
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公开(公告)号：US12110851B2
公开(公告)日：2024-10-08
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：US11639701B1
公开(公告)日：2023-05-02
申请号：US17829670
申请日：2022-06-01
Applicant: Caterpillar Inc.
Inventor： Chad Koci , Bobby John , Naga Krishna Chaitanya Kavuri , Jonathan William Anders
Abstract: An engine system includes an engine housing having a cylinder block and a cylinder head. An intake opening and an exhaust opening and an igniter opening are formed in a fire deck surface of the cylinder head. A plurality of always-open fuel admission ports are fluidly connected to a combustion chamber and arranged in at least one of the cylinder block or the cylinder head. The always-open fuel admission ports convey a gaseous fuel such as a gaseous hydrogen fuel, a gaseous hydrocarbon fuel, or still others, to the combustion chamber.
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公开(公告)号：US11225933B2
公开(公告)日：2022-01-18
申请号：US16041061
申请日：2018-07-20
Applicant: Caterpillar Inc.
Inventor： Robert M. Campion , Dean Craig Diers , Sana Mahmood , Jonathan Anders , Bobby John , Jonathan Richard Chittenden
Abstract: A liquid fuel injector such as for a dual fuel system in an internal combustion engine includes two-way injection control valves for controlling twin outlet checks. A first set of orifices are arranged in an A-F-Z pattern, and a second set of orifices are arranged in an A-F-Z pattern, within the fuel injector, among a high-pressure inlet passage, a low-pressure space, and first and second outlet check control chambers, respectively. A common nozzle supply cavity is fluidly connected to the high-pressure inlet passage and supplies each of two sets of nozzle outlets opened and closed by the twin outlet checks.
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公开(公告)号：US10563609B2
公开(公告)日：2020-02-18
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
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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Patent Agency Ranking
公开(公告)号：US10563597B2
公开(公告)日：2020-02-18
申请号：US15814918
申请日：2017-11-16
Applicant: Caterpillar Inc.
Inventor： Bobby John , Glen Clifford Martin , Jonathan W. Anders , Robert M. Campion
Abstract: A fuel injector includes a nozzle having at least one first orifice provided therein. The at least one first orifice is adapted to selectively inject one of a fuel and an oxidant. An outer check is disposed movably within the nozzle. The outer check includes at least one second orifice provided therein. The at least one second orifice is adapted to selectively inject an other of the oxidant and the fuel. An inner check is disposed movably and concentrically within the outer chock. The at least one second orifice is adapted to align with respect to the at least one first orifice to selectively inject the fuel and the oxidant together through the at least one first orifice based on a position of each of the outer check and the inner check.
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公开(公告)号：US20200025154A1
公开(公告)日：2020-01-23
申请号：US16041061
申请日：2018-07-20
Applicant: Caterpillar Inc.
Inventor： Robert M. Campion , Dean Craig Diers , Sana Mahmood , Jonathan Anders , Bobby John , Jonathan Richard Chittenden
Abstract: A liquid fuel injector such as for a dual fuel system in an internal combustion engine includes two-way injection control valves for controlling twin outlet checks. A first set of orifices are arranged in an A-F-Z pattern, and a second set of orifices are arranged in an A-F-Z pattern, within the fuel injector, among a high-pressure inlet passage, a low-pressure space, and first and second outlet check control chambers, respectively. A common nozzle supply cavity is fluidly connected to the high-pressure inlet passage and supplies each of two sets of nozzle outlets opened and closed by the twin outlet checks.
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公开(公告)号：US20190170103A1
公开(公告)日：2019-06-06
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
CPC classification number: F02M61/168 , F02M43/04 , F02M61/1806 , F02M2200/46
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：US20190145339A1
公开(公告)日：2019-05-16
申请号：US15814918
申请日：2017-11-16
Applicant: Caterpillar Inc.
Inventor： Bobby John , Glen Clifford Martin , Jonathan W. Anders , Robert M. Campion
Abstract: A fuel injector includes a nozzle having at least one first orifice provided therein. The at least one first orifice is adapted to selectively inject one of a fuel and an oxidant. An outer check is disposed movably within the nozzle. The outer check includes at least one second orifice provided therein. The at least one second orifice is adapted to selectively inject an other of the oxidant and the fuel. An inner check is disposed movably and concentrically within the outer chock. The at least one second orifice is adapted to align with respect to the at least one first orifice to selectively inject the fuel and the oxidant together through the at least one first orifice based on a position of each of the outer check and the inner check.
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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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