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:
Jan. 12, 2016
Filed:
May. 17, 2012
Applicants:
Alan R. Stockner, Metamora, IL (US);
Frank J. Lombardi, Metamora, IL (US);
Inventors:
Alan R. Stockner, Metamora, IL (US);
Frank J. Lombardi, Metamora, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 27/02 (2006.01); F02B 45/10 (2006.01); F02M 21/02 (2006.01); F02D 19/08 (2006.01); F02D 19/02 (2006.01); F02D 19/06 (2006.01); F02D 19/10 (2006.01); F02D 41/22 (2006.01); F02M 63/02 (2006.01); F02M 43/00 (2006.01); F02M 37/04 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02B 27/02 (2013.01); F02B 45/10 (2013.01); F02D 19/027 (2013.01); F02D 19/0623 (2013.01); F02D 19/0684 (2013.01); F02D 19/0694 (2013.01); F02D 19/08 (2013.01); F02D 19/105 (2013.01); F02D 41/0027 (2013.01); F02D 41/22 (2013.01); F02M 21/02 (2013.01); F02M 43/00 (2013.01); F02M 63/029 (2013.01); F02D 19/0689 (2013.01); F02D 41/0025 (2013.01); F02D 2041/227 (2013.01); F02M 21/0215 (2013.01); F02M 21/0224 (2013.01); F02M 37/04 (2013.01); Y02T 10/32 (2013.01); Y02T 10/36 (2013.01); Y02T 10/40 (2013.01);
Abstract
The disclosure describes an engine system having liquid and gaseous fuel systems, each of which injects fuel directly into an engine cylinder. A controller monitors and controls engine operation in a normal mode, during which the engine produces rated power, and in a limp-home mode, which is used when an abnormal operating condition of the gaseous fuel system is present. During limp-home mode operation, the engine uses more liquid fuel and less or no gaseous fuel relative to the normal mode, and produces power that is less than rated power.