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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 9518518 B1

PDFFull Text
Date of Patent:
Dec. 13, 2016

Filed:

Apr. 19, 2013

Dual fuel common rail transient pressure control and engine using same

Applicant:

Caterpillar, Inc., Peoria, IL (US);

Inventors:

Dana R. Coldren, Secor, IL (US);

Steven Thomas Grant, Groveland, IL (US);

Frank Lombardi, Metamora, IL (US);

Daniel R. Puckett, Peoria, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:

Hieu T Vo

Assistant Examiner:

Arnold Castro

Int. Cl.
CPC ...
F02D 19/06 (2006.01); F02D 41/32 (2006.01); F02D 41/00 (2006.01); F02D 19/10 (2006.01); F02D 41/38 (2006.01); F02D 41/40 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0025 (2013.01); F02D 19/0694 (2013.01); F02D 41/0027 (2013.01); F02D 41/3836 (2013.01); F02D 19/061 (2013.01); F02D 19/0605 (2013.01); F02D 19/10 (2013.01); F02D 41/3845 (2013.01); F02D 41/403 (2013.01); F02D 2041/3881 (2013.01); F02D 2200/0602 (2013.01);
Abstract

A compression ignition engine is fueled from common rail fuel injectors that predominately inject natural gas fuel that is compression ignited with a small pilot injection of liquid diesel fuel. Before and after a rapid load loss transient, the liquid and gaseous rail pressures are controlled toward respective pressures based upon engine speed and load. During the transient, the liquid rail pressure is controlled relative to the gas rail pressure in order to maintain the liquid rail pressure greater than the gas pressure during the transient to avoid migration gaseous fuel into the liquid fuel side of the system.

Find Patent Forward Citations

Coldren, Dana. (2016). Dual fuel common rail transient pressure control and engine using same (U.S. Patent No. 9518518). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9518518

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

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