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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 9890741 B1

PDFFull Text
Expired
Date of Patent:
Feb. 13, 2018

Filed:

Aug. 27, 2015

Dual fuel common rail engine with co-axial quill assembly

Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Dennis H. Gibson, Chillicothe, IL (US);

Shivangini S. Hazari, Peoria, IL (US);

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

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

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:

Erick Solis

Assistant Examiner:

Anthony L Bacon

Int. Cl.
CPC ...
F02M 21/02 (2006.01); F02M 45/00 (2006.01); F02M 55/02 (2006.01); F02M 55/04 (2006.01); F02B 3/06 (2006.01); F02B 43/00 (2006.01); F02D 19/06 (2006.01); F02M 63/02 (2006.01); F02M 43/04 (2006.01); F02M 45/08 (2006.01); F02M 61/10 (2006.01); F02M 37/00 (2006.01);
U.S. Cl.
CPC ...
F02M 21/0257 (2013.01); F02B 3/06 (2013.01); F02B 43/00 (2013.01); F02D 19/0647 (2013.01); F02D 19/0684 (2013.01); F02D 19/0694 (2013.01); F02M 21/0215 (2013.01); F02M 21/0245 (2013.01); F02M 21/0281 (2013.01); F02M 21/0287 (2013.01); F02M 43/04 (2013.01); F02M 45/00 (2013.01); F02M 45/086 (2013.01); F02M 55/02 (2013.01); F02M 55/025 (2013.01); F02M 55/04 (2013.01); F02M 61/10 (2013.01); F02M 63/029 (2013.01); F02M 37/0017 (2013.01); F02M 2200/856 (2013.01); Y02T 10/32 (2013.01); Y02T 10/36 (2013.01);
Abstract

A dual fuel common rail engine supplies pressurized natural gas and liquid diesel fuel at different pressures through a co-axial quill assembly for direct injection from a single fuel injector into an engine cylinder. Pressure waves in the gaseous fuel common rail are damped in a pressure damping chamber of the co-axial quill assembly to promote consistent gaseous fuel injection rates and quantities from the fuel injector.

Find Patent Forward Citations

Gibson, Dennis. (2018). Dual fuel common rail engine with co-axial quill assembly (U.S. Patent No. 9890741). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9890741

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

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