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.

Date of Patent:
May. 23, 2023

Filed:

Sep. 07, 2021
Applicant:

Southwest Research Institute, San Antonio, TX (US);

Inventors:

Christopher L. Wray, San Antonio, TX (US);

Zainal Abidin, San Antonio, TX (US);

Kevin L. Hoag, San Antonio, TX (US);

Anthony S. Perkins, Shoreham-by-Sea, GB;

Ian P. Gilbert, Shoreham-by-Sea, GB;

Marc C. Megel, Olathe, CO (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F 1/42 (2006.01); F02B 1/06 (2006.01);
U.S. Cl.
CPC ...
F02F 1/4235 (2013.01); F02B 1/06 (2013.01);
Abstract

An engine with a vertically oriented parallel valve and stem arrangement accommodating tumble flow to support spark-ignited fuel usage. The engine may be provided in a configuration generally suited for swirl flow, compression combustion fuel usage. However, the introduction of a unique, replaceable valve head assembly may be utilized to induce tumble flow within a combustion chamber of the engine. Thus, spark-ignited fuel may be utilized without requiring vast overhaul of the engine to accommodate such fuels. Notably, with the addition of such an assembly, diesel fuel may be replaced with natural gas on large scale equipment without the requirement of impractically burdensome or expensive measures.


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