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US 11,267,490 B2Granted
Cooling system and method for a dual-powered railroad vehicle
AssigneeHitachi Energy Switzerland AG
InventorsHarry Zueger, Yann Cuenin, Yoann Alphand
Life of this patent
Estimating the term…
Abstract
A dual-powered railroad vehicle is provided. The vehicle includes a combustion engine having a first cooling circuit; a traction transformer having a second cooling circuit; and at least one radiator for dissipating thermal energy to surrounding air. The first cooling circuit and the second cooling circuit are configured to dissipate thermal energy via the at least one radiator. Further, a method for operating a dual-powered railroad vehicle is provided.
Claims20
A dual-powered railroad vehicle, comprising:
- a combustion engine having a first cooling circuit;
- a traction transformer operatively coupled to an electric grid to provide power to the dual-powered railroad vehicle during pure electric operation of the dual-powered railroad vehicle, the traction transformer having a second cooling circuit;
- at least one radiator for dissipating thermal energy to surrounding air,
- wherein the first cooling circuit and the second cooling circuit are configured to dissipate thermal energy via the at least one radiator.
1 more element
A method for operating a dual-powered railroad vehicle, comprising:
- dissipating heat from a combustion engine with a first cooling circuit;
- and/or
- dissipating heat from a traction transformer with a second cooling circuit, the traction transformer operatively coupled to an electric grid to provide power to the dual-powered railroad vehicle during pure electric operation of the dual-powered railroad vehicle,
- wherein heat from the combustion engine and heat from the traction transformer is dissipated via at least one radiator, and wherein the first cooling circuit is thermally coupled to the second cooling circuit via a heat exchanger situated outside of the at least one radiator and wherein only coolant of the first cooling circuit flows through the at least one radiator.
1 more element
Dependencies are inferred from the claim text.