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公开(公告)号：US11828220B1
公开(公告)日：2023-11-28
申请号：US18148842
申请日：2022-12-30
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Yu Zhang , Nayan Engineer , David Cleary
Abstract: The present disclosure is directed toward an engine system and a multi-mode combustion method for an internal combustion engine using hydrogen as a fuel. The engine system comprises a combustion system including a step-lipped piston bowl, a cover opposing the piston bowl, a hydrogen direct injector, and a radially asymmetrical pre-chamber partially opposite the lip of the piston bowl. The multi-mode combustion method includes injecting hydrogen and air a first time into the combustion system through the hydrogen direct injector, and jet igniting the fuel-air mixture in the combustion system. The injecting occurs during an intake stroke at low loads, and during a compression stroke at medium and high loads, Injecting hydrogen and air into the combustion system a second time via the hydrogen direct injector occurs either during or after jet-igniting, the hydrogen and air being at least partially ignited by compression.
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Patent Agency Ranking
公开(公告)号：US20250035057A1
公开(公告)日：2025-01-30
申请号：US18917193
申请日：2024-10-16
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Yu Zhang , Praveen Kumar , Anqi Zhang , Nayan Engineer
Abstract: A hydrogen-diesel dual-fuel engine that includes an engine block, where the engine block includes a cylinder outfitted with at least two hydrogen fuel injectors and a piston. The engine further includes an air-handling system that includes an intake manifold, an intake pipe, an exhaust pipe, a variable geometry turbocharger, and an exhaust gas recirculation system configured to recirculate exhaust gases from the exhaust pipe to the intake manifold. The engine further includes a two-step camshaft, where the two-step camshaft is configured with the air-handling system for exhaust re-breathing and late intake valve closing, and a port fuel injector system that provides hydrogen gas to the at least two hydrogen fuel injectors. The engine further includes a diesel injector, a common-rail fuel injection system, a plurality of sensors, and a controller configured to receive engine data from the plurality of sensors and to control operation of the hydrogen-diesel dual-fuel engine.
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公开(公告)号：US20220220921A1
公开(公告)日：2022-07-14
申请号：US17145718
申请日：2021-01-11
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Nayan Engineer
Abstract: A combustion system includes a cylinder having a main chamber and a fuel injector positioned to inject fuel into the main chamber. A cylinder head is disposed at a top of the cylinder and forms an upper end of the main chamber. A prechamber adapter has a prechamber volume and a nozzle with a plurality of orifices for communication between the prechamber volume and an external environment. The prechamber adapter is threaded into a bore in the cylinder head and positioned to expose the nozzle to the main chamber. A spark plug is positioned within the prechamber adapter with a spark emitting end exposed to the prechamber volume. A piston movably disposed within the cylinder has a piston head forming a lower end of the main chamber. The piston head has a dome shape and a bowl formed in a top center of the dome shape.
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公开(公告)号：US20250035056A1
公开(公告)日：2025-01-30
申请号：US18917043
申请日：2024-10-16
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Yu Zhang , Praveen Kumar , Anqi Zhang , Nayan Engineer
Abstract: A hydrogen-diesel dual-fuel engine that includes an engine block, where the engine block includes a cylinder outfitted with at least two hydrogen fuel injectors and a piston. The engine further includes an air-handling system that includes an intake manifold, an intake pipe, an exhaust pipe, a variable geometry turbocharger, and an exhaust gas recirculation system configured to recirculate exhaust gases from the exhaust pipe to the intake manifold. The engine further includes a two-step camshaft, where the two-step camshaft is configured with the air-handling system for exhaust re-breathing and late intake valve closing, and a port fuel injector system that provides hydrogen gas to the at least two hydrogen fuel injectors. The engine further includes a diesel injector, a common-rail fuel injection system, a plurality of sensors, and a controller configured to receive engine data from the plurality of sensors and to control operation of the hydrogen-diesel dual-fuel engine.
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公开(公告)号：US12152547B1
公开(公告)日：2024-11-26
申请号：US18338650
申请日：2023-06-21
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Yu Zhang , Praveen Kumar , Anqi Zhang , Nayan Engineer
Abstract: A hydrogen-diesel dual-fuel engine that includes an engine block, where the engine block includes a cylinder outfitted with at least two hydrogen fuel injectors and a piston. The engine further includes an air-handling system that includes an intake manifold, an intake pipe, an exhaust pipe, a variable geometry turbocharger, and an exhaust gas recirculation system configured to recirculate exhaust gases from the exhaust pipe to the intake manifold. The engine further includes a two-step camshaft, where the two-step camshaft is configured with the air-handling system for exhaust re-breathing and late intake valve closing, and a port fuel injector system that provides hydrogen gas to the at least two hydrogen fuel injectors. The engine further includes a diesel injector, a common-rail fuel injection system, a plurality of sensors, and a controller configured to receive engine data from the plurality of sensors and to control operation of the hydrogen-diesel dual-fuel engine.
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6.发明授权公开(公告)号：US11473551B1
公开(公告)日：2022-10-18
申请号：US17462662
申请日：2021-08-31
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Nayan Engineer
Abstract: This disclosure presents, in one or more embodiments, an ignition device for a gasoline compression ignition engine. The ignition device includes a shuttle plunger with a gas chamber. The gas chamber is delimited by at least one sidewall of the shuttle plunger and captures exhaust gases. The ignition device also includes an electromagnetic coil that actuates the shuttle plunger in a first direction, a main body with a cavity containing the shuttle plunger and the electromagnetic coil, and a center electrode, fixed to the shuttle plunger, that ignites a fuel mixture.
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