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:
May. 01, 2007
Filed:
Sep. 16, 2005
Donald W. Stanton, Columbus, IN (US);
Randall L. Zehr, Columbus, IN (US);
Wayne A. Eckerle, Columbus, IN (US);
Francois Ntone, Columbus, IN (US);
Donald W. Stanton, Columbus, IN (US);
Randall L. Zehr, Columbus, IN (US);
Wayne A. Eckerle, Columbus, IN (US);
Francois Ntone, Columbus, IN (US);
Cummins, Inc., Columbus, IN (US);
Abstract
An engine is provided which includes various precise configuration parameters, including dimensions, shape and/or relative positioning of the combustion chamber features, resulting in a combustion process minimizing NOx emissions and particulates. The combustion chamber includes one or more of the following: a spray angle relative to an inner bowl floor angle; a vertical distance from the tip of the piston bowl to the injection orifices; a number of injection orifices; a swirl ratio; a vertical distance from the injection orifices to an inner face of the cylinder head; a radius of curvature of an outer bowl section; chamfer with dimensional parameters; and a transition radius.