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公开(公告)号：US20220056835A1
公开(公告)日：2022-02-24
申请号：US16998539
申请日：2020-08-20
Applicant: ARAMCO SERVICES COMPANY
Inventor： Alexander Voice , Nayan Engineer , Xin Yu
Abstract: A system includes an engine having a main combustion chamber and a prechamber containing a spark plug. The prechamber is in fluid communication with the main combustion chamber through at least one orifice. An engine intake line provides intake air to the engine. An engine exhaust line receives exhaust gases from the engine. An exhaust gas recirculation line transports a portion of the exhaust gases from the engine exhaust line to the engine intake line, forming an exhaust gas recirculation loop through the engine. The system includes a reformer having a reactor containing a catalyst-coated substrate. The reformer generates a gaseous reformate from a fuel. The system includes a prechamber feed line to transport a stream of the gaseous reformate from the reformer to the prechamber.
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公开(公告)号：US12060824B1
公开(公告)日：2024-08-13
申请号：US18296858
申请日：2023-04-06
Applicant: ARAMCO SERVICES COMPANY
Inventor： Xin Yu
CPC classification number: F02B23/101 , F02B17/005 , F02D41/40 , F02B2023/102 , F02D2041/389
Abstract: An engine includes a combustion chamber, a fuel injector, a spark plug, and a piston. The combustion chamber receives air from an intake valve, which receives air from an external environment of the engine. The fuel injector includes a fuel channel, a fuel port, an air port, a needle valve, and a premixing tube. The fuel channel receives fuel from a fuel supply. The needle valve initially covers the fuel port, and actuates to fluidly connect the fuel port to the fuel channel such that the fuel port receives the fuel. The air port draws air into the fuel injector, and the premixing tube mixes the air and fuel to create a mixture. The mixture is fed into the combustion chamber along a central axis of the premixing tube such that the mixture intersects the electrode of the spark plug, which ignites the mixture to actuate the piston.
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公开(公告)号：US20240141850A1
公开(公告)日：2024-05-02
申请号：US18050330
申请日：2022-10-27
Applicant: ARAMCO SERVICES COMPANY
Inventor： Xin Yu , Anqi Zhang , Yu Zhang , Andrew Baur , David Cleary
CPC classification number: F02D41/3064 , F02D41/0057 , F02D41/1475 , F02P5/1504 , F02D2200/101
Abstract: A method of operating an engine includes operating the engine in first and second engine operating map regions by performing passive jet ignition combustion with a first stoichiometric fuel mixture and a first volume of residual gas. The engine is operated in a third engine operating map region by performing turbulent jet controlled compression ignition (TJCCI) with an ultra lean fuel mixture and a first volume of cooled exhaust gas recirculation, a fourth engine operating map region by performing passive jet ignition combustion with a third stoichiometric fuel mixture and a second volume of cooled exhaust gas recirculation, and a fifth engine operating map region, characterized by shutting off the engine. The engine is operated in a mode transition region between the second, third, and fourth engine operating map regions by performing passive jet ignition combustion with a second stoichiometric fuel mixture and a second volume of residual gas.
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公开(公告)号：US11754023B2
公开(公告)日：2023-09-12
申请号：US17462904
申请日：2021-08-31
Applicant: ARAMCO SERVICES COMPANY
Inventor： Alexander K. Voice , Andrew Baur , Xin Yu
CPC classification number: F02M26/36 , F01N13/10 , F01N2240/30 , F01N2340/06 , F01N2610/03 , F01N2610/08 , F01N2610/146 , F01N2900/08 , F01N2900/1411 , F02M26/05 , F02M26/06 , F02M26/07 , F02M26/10 , F02M26/21 , F02M26/22
Abstract: A method of operating an engine includes igniting a combustible mixture in a combustion chamber of the engine, which produces exhaust gases. The exhaust gases are ejected into an exhaust manifold of the engine to create a primary exhaust stream. A portion of the exhaust gases is separated from the primary exhaust stream to create a secondary exhaust stream. Air and fuel are then mixed with the secondary exhaust stream to form a reformer feed mixture. The reformer feed mixture is reacted in a catalytic reformer to create a reformate exhaust stream, which is then mixed with an intake air stream to create a mixed air stream. The mixed air stream is the fed to the combustion chamber of the engine as the combustible mixture.
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公开(公告)号：US12152555B2
公开(公告)日：2024-11-26
申请号：US18068644
申请日：2022-12-20
Applicant: ARAMCO SERVICES COMPANY
Inventor： Andrew Baur , Xin Yu , Alexander K. Voice
IPC: F02M26/37 , F02B19/16 , F02D41/00 , F02D41/12 , F02M26/12 , F02M26/15 , F02M26/16 , F02M26/35 , F02M26/41
Abstract: An engine system including an engine is disclosed. The engine includes a combustion chamber having an intake port and an exhaust port, a piston movably disposed in the combustion chamber, and a prechamber adjacent to and in fluid communication with the combustion chamber. The engine system further includes an exhaust line fluidly connected to the exhaust port, a storage tank fluidly connected to the prechamber via a purge line, and a prechamber valve provided along the purge line.
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Patent Agency Ranking
公开(公告)号：US20240141823A1
公开(公告)日：2024-05-02
申请号：US18050342
申请日：2022-10-27
Applicant: ARAMCO SERVICES COMPANY
Inventor： Xin Yu , Anqi Zhang , Andrew Baur , Nayan Engineer
IPC: F02B19/10
CPC classification number: F02B19/108 , F02B19/1014
Abstract: An engine includes an engine block having a cylinder, a piston movably disposed in a main chamber of the cylinder, a prechamber adjacent to and in fluid communication with the main chamber via a prechamber nozzle, and a fuel injector in fluid communication with the main chamber, wherein the fuel injector has spray nozzles interfacing with the main chamber. The fuel injector and the prechamber are aligned such that a first nozzle of the spray nozzles is directed towards the prechamber nozzle.
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公开(公告)号：US11268434B1
公开(公告)日：2022-03-08
申请号：US16998539
申请日：2020-08-20
Applicant: ARAMCO SERVICES COMPANY
Inventor： Alexander Voice , Nayan Engineer , Xin Yu
Abstract: A system includes an engine having a main combustion chamber and a prechamber containing a spark plug. The prechamber is in fluid communication with the main combustion chamber through at least one orifice. An engine intake line provides intake air to the engine. An engine exhaust line receives exhaust gases from the engine. An exhaust gas recirculation line transports a portion of the exhaust gases from the engine exhaust line to the engine intake line, forming an exhaust gas recirculation loop through the engine. The system includes a reformer having a reactor containing a catalyst-coated substrate. The reformer generates a gaseous reformate from a fuel. The system includes a prechamber feed line to transport a stream of the gaseous reformate from the reformer to the prechamber.
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8.发明公开公开(公告)号：US20240200518A1
公开(公告)日：2024-06-20
申请号：US18068644
申请日：2022-12-20
Applicant: ARAMCO SERVICES COMPANY
Inventor： Andrew Baur , Xin Yu , Alexander K. Voice
IPC: F02M26/37 , F02B19/16 , F02D41/00 , F02D41/12 , F02M26/12 , F02M26/15 , F02M26/16 , F02M26/35 , F02M26/41
CPC classification number: F02M26/37 , F02B19/16 , F02D41/005 , F02D41/0077 , F02D41/123 , F02M26/12 , F02M26/15 , F02M26/16 , F02M26/35 , F02M26/41
Abstract: An engine system including an engine is disclosed. The engine includes a combustion chamber having an intake port and an exhaust port, a piston movably disposed in the combustion chamber, and a prechamber adjacent to and in fluid communication with the combustion chamber. The engine system further includes an exhaust line fluidly connected to the exhaust port, a storage tank fluidly connected to the prechamber via a purge line, and a prechamber valve provided along the purge line.
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公开(公告)号：US11959435B1
公开(公告)日：2024-04-16
申请号：US18050330
申请日：2022-10-27
Applicant: ARAMCO SERVICES COMPANY
Inventor： Xin Yu , Anqi Zhang , Yu Zhang , Andrew Baur , David Cleary
CPC classification number: F02D41/3064 , F02B19/12 , F02D41/0057 , F02D41/1475 , F02P5/045 , F02P5/1504 , F02P5/1516 , F02D2200/1002 , F02D2200/101
Abstract: A method of operating an engine includes operating the engine in first and second engine operating map regions by performing passive jet ignition combustion with a first stoichiometric fuel mixture and a first volume of residual gas. The engine is operated in a third engine operating map region by performing turbulent jet controlled compression ignition (TJCCI) with an ultra lean fuel mixture and a first volume of cooled exhaust gas recirculation, a fourth engine operating map region by performing passive jet ignition combustion with a third stoichiometric fuel mixture and a second volume of cooled exhaust gas recirculation, and a fifth engine operating map region, characterized by shutting off the engine. The engine is operated in a mode transition region between the second, third, and fourth engine operating map regions by performing passive jet ignition combustion with a second stoichiometric fuel mixture and a second volume of residual gas.
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公开(公告)号：US20230074674A1
公开(公告)日：2023-03-09
申请号：US17462904
申请日：2021-08-31
Applicant: ARAMCO SERVICES COMPANY
Inventor： Alexander K. Voice , Andrew Baur , Xin Yu
Abstract: A method of operating an engine includes igniting a combustible mixture in a combustion chamber of the engine, which produces exhaust gases. The exhaust gases are ejected into an exhaust manifold of the engine to create a primary exhaust stream. A portion of the exhaust gases is separated from the primary exhaust stream to create a secondary exhaust stream. Air and fuel are then mixed with the secondary exhaust stream to form a reformer feed mixture. The reformer feed mixture is reacted in a catalytic reformer to create a reformate exhaust stream, which is then mixed with an intake air stream to create a mixed air stream. The mixed air stream is the fed to the combustion chamber of the engine as the combustible mixture.
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