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:
Dec. 09, 2008
Filed:
Nov. 16, 2007
Applicants:
Richard Ancimer, Vancouver, CA;
Greg Batenburg, North Delta, CA;
Jeff Thompson, Vancouver, CA;
Inventors:
Assignee:
Westport Power Inc., Vancouver, BC, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 51/00 (2006.01); F02B 43/00 (2006.01); G06F 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An engine operating method and a direct injection gaseous fuelled system directly injects a gaseous fuel into a combustion chamber during a compression stroke, commands gaseous fuel injection pressure to a target value that is determined as a function of at least one pre-selected engine parameter, measures actual gaseous fuel injection pressure and adjusts fuel injection pulsewidth to correct for differences between the target value and the actual gaseous fuel injection pressure to thereby inject the desired mass quantity of gaseous fuel as determined from an engine map.