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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12624673 B1

PDFFull Text
Date of Patent:
May. 12, 2026

Filed:

Dec. 02, 2024

Ammonia-fueled engine based on oxygen enhancement and ammonia-rich combustion control method thereof

Applicant:

Tianjin University, Tianjin, CN;

Inventors:

Lei Zhou, Tianjin, CN;

Zongkuan Liu, Tianjin, CN;

Lijia Zhong, Tianjin, CN;

Haiqiao Wei, Tianjin, CN;

Gequn Shu, Tianjin, CN;

Assignee:

Tianjin University, Tianjin, CN;

Attorney:

Thomas Horstemeyer, LLP

Primary Examiner:

Grant Moubry

Assistant Examiner:

James G Moubry

Int. Cl.
CPC ...
F02M 21/02 (2006.01); F02M 21/04 (2006.01);
U.S. Cl.
CPC ...
F02M 21/0206 (2013.01); F02M 21/0248 (2013.01); F02M 21/04 (2013.01);
Abstract

An ammonia-fueled engine based on oxygen enhancement and reactive activity control, and an ammonia-rich combustion control method thereof are provided. The ammonia-fueled engine based on oxygen enhancement includes a jet ignition device and an ammonia gas injector. An oxygen injector is provided on the jet ignition device. During the operation of the ammonia-fueled engine, the ammonia gas injector firstly injects ammonia fuel into a combustion chamber, and ammonia gas in the combustion chamber enters a prechamber inner cavity through a jet hole during a compression stroke, and the oxygen injector firstly injects oxygen gas into a prechamber to reduce an ammonia concentration in a gas mixture in the prechamber, dilute the gas mixture in the prechamber, improve the reaction activity of the gas mixture, and ensure the speed and intensity of an initial flame; and then a jet flame is formed to ignite over-concentrated ammonia-air mixture in the combustion chamber.

Find Patent Forward Citations

Zhou, Lei. (2026). Ammonia-fueled engine based on oxygen enhancement and ammonia-rich combustion control method thereof (U.S. Patent No. 12624673). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12624673

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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