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:
Jan. 25, 2005
Filed:
Apr. 15, 2003
Ulrich Hilger, Essen, DE;
Bernd Bartunek, Monheim, DE;
Ulrich Hilger, Essen, DE;
Bernd Bartunek, Monheim, DE;
Westport Germany GmbH, Dortmund, DE;
Abstract
An internal combustion engine comprises a fuel injection nozzle for injecting a gaseous fuel directly into the combustion chamber. Installed in close proximity to the fuel injection nozzle is an ignition device, comprising a sleeve that provides a shielded space around a hot surface igniter. The sleeve restricts flow between the shielded space and the combustion chamber. An inlet opening in the sleeve allows air and fuel to enter the shielded space to form a combustible mixture therein. The sleeve contains a substantial amount of the combustible mixture within the shielded space until it ignites and pressure builds within the shielded space to propel a combustion flame through at least one discharge opening that is oriented to direct the combustion flame into contact with the fuel spray roots emerging from the fuel injection nozzle.