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:
Nov. 03, 2015
Filed:
Aug. 19, 2013
Applicant:
Caterpillar, Inc., Peoria, IL (US);
Inventors:
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 63/00 (2006.01); F02M 61/10 (2006.01); F02M 43/04 (2006.01); F02D 19/06 (2006.01); F02D 19/08 (2006.01); F02M 21/02 (2006.01);
U.S. Cl.
CPC ...
F02M 43/04 (2013.01); F02D 19/0647 (2013.01); F02D 19/0694 (2013.01); F02D 19/081 (2013.01); F02M 21/0281 (2013.01);
Abstract
A dual fuel system includes liquid and gaseous fuel supplies and a fuel injector in fluid communication therewith. A gaseous fuel check in the fuel injector forms a leak path with a fuel injector body between gaseous and liquid fuel passages, and a leakage limiting seal is positioned about the gaseous fuel check and deformable into sealing contact with the gaseous fuel check responsive to an increase in a pressure drop from the liquid fuel passage to the gaseous fuel passage in the fuel injector.