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:
Oct. 21, 2008
Filed:
Feb. 06, 2004
Ramesh B. Poola, Naperville, IL (US);
Nicholas Gryfakis, Chicago, IL (US);
German A. Acosta, Skokie, IL (US);
John L. Beasley, Chicago, IL (US);
James L. Blase, Lemont, IL (US);
Michael Goetzke, Orland Park, IL (US);
Ramesh B. Poola, Naperville, IL (US);
Nicholas Gryfakis, Chicago, IL (US);
German A. Acosta, Skokie, IL (US);
John L. Beasley, Chicago, IL (US);
James L. Blase, Lemont, IL (US);
Michael Goetzke, Orland Park, IL (US);
Electro-Motive Diesel, Inc., LaGrange, IL (US);
Abstract
A large-bore (at least 180 mm diameter) diesel engine cylinder configuration featuring a piston crown bowl having an acute re-entrant angle and, optionally, an anti-polish ring. The acute re-entrant angle crown bowl involves a maximum radius of the crown bowl exceeding a minimum crown bowl radius, wherein the maximum crown bowl radius is located farther from the squish face than is the minimum crown bowl radius. The acute re-entrant angle crown bowl applied to large-bore, medium-speed diesel engines yields an improvement in performance and emissions characteristics. The anti-polish ring may be integrally formed with the cylinder liner and used in any internal combustion engine.