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:
Sep. 22, 2015
Filed:
Jun. 11, 2012
Dennis Henderson Gibson, Chillicothe, IL (US);
Shivangini Singh Hazari, Peoria, IL (US);
Dana Ray Coldren, Secor, IL (US);
Daniel Raymond Baldwin, Peoria, IL (US);
Dennis Henderson Gibson, Chillicothe, IL (US);
Shivangini Singh Hazari, Peoria, IL (US);
Dana Ray Coldren, Secor, IL (US);
Daniel Raymond Baldwin, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
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 before the pressure wave can undermine consistent gaseous fuel injection rates and quantities from the fuel injector.