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US 12,152,555 B2Granted
Air pressure energy recovery and air/fuel/reformate storage during vehicle deceleration for active prechamber operation
AssigneeSaudi Arabian Oil Company
InventorsAndrew Baur, Xin Yu, Alexander K. Voice
Life of this patent
Estimating the term…
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.
Claims19
An engine system, comprising:
- an engine, comprising:
- a combustion chamber comprising an intake port and an exhaust port;
- a piston movably disposed in the combustion chamber;
- a prechamber adjacent to and in fluid communication with the combustion chamber;
- an exhaust line fluidly connected to the exhaust port;
- a storage tank fluidly connected to the prechamber via a purge line;
- a prechamber valve provided along the purge line;
- and
- a diversion line fluidly connecting the exhaust line to the storage tank via an exhaust diversion valve.
6 more elements
A method, comprising:
- providing an engine with a combustion chamber fluidly connected to a prechamber;
- providing a storage tank fluidly connected to the prechamber via a purge line;
- charging the storage tank with gas from the combustion chamber to a desired pressure using a prechamber valve during a deceleration fuel cut off (DFCO) period of the engine;
- opening the prechamber valve;
- discharging the gas from the storage tank;
- directing the discharged gas through the purge line to the prechamber;
- and
- purging the prechamber.
5 more elements
A method, comprising:
- providing an engine with a combustion chamber fluidly connected to a prechamber and fluidly connected to a storage tank via an exhaust line;
- performing a fuel reforming process;
- charging the storage tank with gas to a desired pressure using a prechamber valve during a deceleration fuel cut off (DFCO) period of the engine;
- opening the prechamber valve;
- discharging the gas from the storage tank;
- directing the gas through a purge line to the prechamber;
- and
- purging the prechamber.
5 more elements
Dependencies are inferred from the claim text.