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:
Aug. 02, 2005
Filed:
Apr. 23, 2002
Paul Gottemoller, Palos Park, IL (US);
Keith E. Solomons, Chicago, IL (US);
Jerry Van Polen, Oak Park, IL (US);
Bradley S. Silvers, Oswego, IL (US);
Paul Gottemoller, Palos Park, IL (US);
Keith E. Solomons, Chicago, IL (US);
Jerry Van Polen, Oak Park, IL (US);
Bradley S. Silvers, Oswego, IL (US);
Electro-Motive Diesel, Inc., LaGrange, IL (US);
Abstract
An accurate method of determining the power developed by selected cylinders of a multiple cylinder engine is based on the concept of controlling engine rpm for test purposes by adjusting the load on the engine instead of controlling speed by adjusting the fuel rate as is commonly done in normal engine operation. The method may be utilized for evaluating cylinder performance and for accurately balancing the output of the individual cylinders. It is particularly useful in railroad applications where the engine operates a generator that produces electric power and the system is provided with dynamic braking grids, which can be utilized as resistor grids for load testing the engine. However, the method is also applicable to other engines and other engine arrangements where engine power may be absorbed by a generator or dynamometer for controlling the load for test purposes.