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. 14, 1999
Filed:
Nov. 14, 1997
Dennis O Taylor, Columbus, IN (US);
Chuan He, Columbus, IN (US);
Emma Sweetland, Bucks, GB;
Albert E Sisson, Columbus, IN (US);
Yue Y Wang, Columbus, IN (US);
Eric K Bradley, Columbus, IN (US);
G George Zhu, Columbus, IN (US);
Steven G Smith, Roseville, MN (US);
Cummins Engine Company, Inc., Columbus, IN (US);
Abstract
A system and method for measuring individual cylinder power contribution by cutting out individual cylinders of a multi-cylinder engine and performing a snap-throttle test on the engine. Engine speed versus time data is collected and stored during each snap-throttle test. This data is then used to calculate the power contribution provided by each cylinder using various methods, such as a least squares analysis of the speed data or by an analysis of the kinetic energy of the test engine.