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:
Jun. 07, 2022
Filed:
Oct. 18, 2019
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Prasanna M. Ballal, Dunlap, IL (US);
Shawn M. Damm, Peoria, IL (US);
Joseph P. Fuller, Morton, IL (US);
Oskar Turner, East Peoria, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 33/00 (2006.01); F02D 19/02 (2006.01); F02D 41/00 (2006.01); F02M 21/02 (2006.01); F02M 37/00 (2006.01); F02D 19/06 (2006.01);
U.S. Cl.
CPC ...
F02D 33/006 (2013.01); F02D 19/027 (2013.01); F02D 19/06 (2013.01); F02D 19/0613 (2013.01); F02D 19/0621 (2013.01); F02D 19/0623 (2013.01); F02D 19/0628 (2013.01); F02D 19/0642 (2013.01); F02D 19/0647 (2013.01); F02D 41/0027 (2013.01); F02M 21/0218 (2013.01); F02M 37/0064 (2013.01);
Abstract
A method for detecting reverse flow for a dual fuel engine is disclosed. The engine may include an intake manifold, a liquid fuel supply line and a gaseous fuel supply line, the gaseous fuel supply line including a gaseous fuel supply and a gaseous fuel rail. The method may include: operating the dual fuel engine in a liquid fuel only mode via the liquid fuel supply line; determining a reverse flow in the gaseous fuel supply line; and outputting an indication of reverse flow in response to the determination of reverse flow.