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.

Date of Patent:
Sep. 13, 2016

Filed:

Jun. 30, 2011
Applicants:

Nicholas Coplin, Merriwa, AU;

Geoffrey Paul Cathcart, Mount Lawley, AU;

Inventors:

Nicholas Coplin, Merriwa, AU;

Geoffrey Paul Cathcart, Mount Lawley, AU;

Assignee:

Orbital Australia Pty Limited, Balcatta, Western Australia, AU;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 67/12 (2006.01); F02M 67/02 (2006.01); F02D 19/08 (2006.01); F02D 41/24 (2006.01); F02D 41/00 (2006.01); F02D 41/30 (2006.01); F02M 23/00 (2006.01);
U.S. Cl.
CPC ...
F02D 19/08 (2013.01); F02D 41/2467 (2013.01); F02M 67/02 (2013.01); F02M 67/12 (2013.01); F02D 41/0025 (2013.01); F02D 2041/3088 (2013.01); F02M 2023/008 (2013.01);
Abstract

A method of operation of a dual fluid fuel injection system arranged to supply fuel to a cylinder of an internal combustion engine, the dual fluid fuel injection system being controllable to effect fuel metering events and fuel delivery events. The method comprises operating the dual fluid fuel injection system so as to have at least one fuel delivery event during each engine cycle and to have fewer than one fuel metering event, on average, per engine cycle. An electronic control unit for implementing the method is also described. The method and control unit allow dynamic range of a fuel metering injector, where included within the dual fluid fuel injection system, to be extended.


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