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. 30, 2011
Filed:
Feb. 10, 2010
Arnold R. Miller, Lakewood, CO (US);
Kris S. Hess, Westminster, CO (US);
Timothy L. Erickson, Parker, CO (US);
James L. Dippo, Arvada, CO (US);
Arnold R. Miller, Lakewood, CO (US);
Kris S. Hess, Westminster, CO (US);
Timothy L. Erickson, Parker, CO (US);
James L. Dippo, Arvada, CO (US);
BNSF Railway Company, Fort Worth, TX (US);
Abstract
A cooling system for a hydrogen hybrid locomotive having a set of electric traction motors and a hydrogen fuel cell system for providing electric power for driving the traction motors includes a radiator for extracting heat from cooling fluid circulated through the hydrogen fuel cell system by a circulation system. The circulation system includes a bypass valve for bypassing a selected amount of the cooling fluid around the radiator and a radiator output valve for controlling an amount of the cooling fluid passed to the hydrogen fuel cell system from the radiator. A fan system provides air flow across the radiator. A control system selectively sets a position of the radiator output valve and a position of the bypass valve and selectively controls a speed of the fan, as required to control cooling of the hydrogen fuel cell system.