Railway rolling stock – Locomotives – Electric
Reexamination Certificate
2011-08-30
2011-08-30
Morano, S. Joseph (Department: 3617)
Railway rolling stock
Locomotives
Electric
C105S035000, C105S026050, C105S050000, C105S061000, C180S065100, C180S065210
Reexamination Certificate
active
08006627
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.
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Dippo James L.
Erickson Timothy L.
Hess Kris S.
Miller Arnold R.
BNSF Railway Company
Morano S. Joseph
Murphy James J.
Smith Jason C
Thompson & Knight LLP
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