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.:
Date of Patent:
Jul. 12, 2022
Filed:
Jun. 23, 2021
Caterpillar Inc., Peoria, IL (US);
Eric Lee Schroeder, Germantown Hills, IL (US);
David Todd Montgomery, Edelstein, IL (US);
Arnold Myoungjin Kim, Peoria, IL (US);
Michael Bardell, Peoria, IL (US);
Nikolas Karl Landin, Colorado Springs, CO (US);
Kenth I. Svensson, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
Operating an engine includes injecting a liquid alcohol fuel such as methanol into a stream of compressed intake air at an upstream injection location, and injecting the liquid fuel at a plurality of downstream injection locations into a plurality of streams of the compressed intake air from an intake manifold to combustion cylinders in the engine. A fueling control unit apportions a total injected quantity of the liquid fuel between the upstream injection location and the plurality of downstream injection locations based on a temperature parameter of the compressed intake air. The compressed intake air is combusted with the liquid fuel and a compression ignition pilot fuel in the plurality of combustion cylinders.