Integrated power and cooling system

1 . A system comprising:

a hydrogen fuel delivery system for an engine, the hydrogen fuel delivery system comprising a pump configured to pump hydrogen from a tank storing the hydrogen in a liquid state through the hydrogen fuel delivery system, and an evaporator configured to convert at least some of the hydrogen in the liquid state to a gaseous state;

a heat source thermally coupled with the hydrogen fuel delivery system and fluidly uncoupled from the hydrogen fuel delivery system;

a first connector arranged downstream of the pump and configured to receive the hydrogen in the liquid state therefrom;

a further connector;

at least one component positioned downstream from the evaporator between the evaporator and the engine and configured to raise a temperature of the hydrogen before the hydrogen reaches the engine, and

a coolant loop configured to circulate a coolant between the heat source and the evaporator to cool the heat source, wherein the coolant flows directly from the heat source to the evaporator, wherein heat from the heat source is transferred from the coolant to the hydrogen in the evaporator,

wherein the coolant loop includes a first valve that splits the coolant flowing from the evaporator into a primary portion that flows to a heater and a secondary portion that flows to the heat source, and wherein the primary and secondary portions are directed to the evaporator after having passed through the heater and the heat source, respectively

wherein the first connector splits the hydrogen in the liquid state into a first portion that flows to the at least one component and into a second portion that flows to the evaporator such that the first and second portions are configured to flow to the at least one component and the evaporator, respectively, simultaneously,

wherein the first connector further splits the hydrogen in the liquid state into a third portion that flows to at least one auxiliary component to cool the at least one auxiliary component, and

wherein the further connector is configured to combine a fourth portion of the hydrogen exiting the evaporator and a fifth portion of the hydrogen exiting the at least one auxiliary component and supply the fourth and fifth portions downstream to the engine, and

wherein the hydrogen fuel delivery system is configured to supply the hydrogen to the engine for combustion and cool the heat source using the hydrogen.

2 . The system of claim 1 , wherein the coolant loop is configured such that the primary portion of the coolant that has been heated by the heater bypasses the heat source and flows directly to the evaporator and the coolant exiting the heat source bypasses the heater and flows directly to the heat source.

3 . The system of claim 2 , wherein the coolant loop further includes a first fluid line along which the evaporator and the heat source are arranged and a second fluid line along which the heater is arranged, and wherein the coolant loop further includes a third connector that fluidically couples the second fluid line to the first fluid line downstream of the heat source.

4 . The system of claim 3 , wherein the primary and secondary portions of the coolant flow through the third connector after exiting the heater and the heat source, respectively, such that the primary and secondary portions both flow through the first fluid line to the evaporator after passing through the third connector.

5 . The system of claim 1 , wherein the pump comprises a first pump, and wherein the coolant loop comprises a second pump configured to pump the coolant between the evaporator and the heat source.

6 . The system of claim 1 , further comprising:

a metering valve arranged between the pump and the evaporator and configured to regulate a flow of the hydrogen in the liquid state to the evaporator.

7 . A system comprising:

a hydrogen fuel delivery system for an engine, the hydrogen fuel delivery system comprising a pump configured to pump hydrogen from a tank storing the hydrogen in a liquid state through the hydrogen fuel delivery system, and an evaporator configured to convert at least some of the hydrogen in the liquid state to a gaseous state;

a heat source thermally coupled with the hydrogen fuel delivery system and fluidly uncoupled from the hydrogen fuel delivery system;

a first connector arranged downstream of the pump and configured to receive the hydrogen in the liquid state therefrom;

a further connector; and

at least one component positioned downstream from the evaporator between the evaporator and the engine and configured to raise a temperature of the hydrogen before the hydrogen reaches the engine,

wherein the hydrogen fuel delivery system is configured to supply the hydrogen to the engine for combustion and cool the heat source using the hydrogen, and

wherein the first connector splits the hydrogen in the liquid state into a first portion that flows to the at least one component and into a second portion that flows to the evaporator such that the first and second portions are configured to flow to the at least one component and the evaporator, respectively, simultaneously,

wherein the first connector further splits the hydrogen in the liquid state into a third portion that flows to at least one auxiliary component to cool the at least one auxiliary component, and

wherein the further connector is configured to combine a fourth portion of the hydrogen exiting the evaporator and a fifth portion of the hydrogen exiting the at least one auxiliary component and supply the fourth and fifth portions downstream to the engine.

8 . The system of claim 7 , wherein the at least one component comprises at least one of an oil cooler and a preheater.

9 . The system of claim 7 , wherein the pump is configured to deliver the first portion of the hydrogen in the liquid state directly to the at least one component.

10 . The system of claim 7 , further comprising:

a first metering valve arranged between the first connector and the evaporator and configured to regulate a flow of the hydrogen in the liquid state to the evaporator.

11 . The system of claim 10 , further comprising:

a second metering valve arranged between the first connector and the at least one component and configured to regulate a flow of the hydrogen in the liquid state to the at least one component.

12 . The system of claim 10 , wherein the first metering valve is controlled based on at least one of a sensed pressure and a sensed temperature of the hydrogen output from the evaporator.

13 . A method, comprising:

delivering, with a pump of a hydrogen fuel delivery system, hydrogen from a tank storing the hydrogen in a liquid state to an engine that uses the hydrogen in a gaseous state as fuel;

converting at least some of the hydrogen in the liquid state to the gaseous state with an evaporator of the hydrogen fuel delivery system during the delivery of the hydrogen to the engine;

providing a heat source thermally coupled with the hydrogen fuel delivery system and fluidly uncoupled from the hydrogen fuel delivery system;

arranging a first connector downstream of the pump and configured to receive the hydrogen in the liquid state therefrom;

positioning at least one component downstream from the evaporator between the evaporator and the engine and configured to raise a temperature of the hydrogen before the hydrogen reaches the engine;

splitting the hydrogen in the liquid state via the first connector into a first portion that flows to the at least one component and into a second portion that flows to the evaporator such that the first and second portions are configured to flow to the at least one component and the evaporator, respectively, simultaneously, wherein the first connector is further configured to split the hydrogen in the liquid state into a third portion that flows to at least one auxiliary component to cool the at least one auxiliary component; and

arranging a further connector such that the further connector is configured to combine a fourth portion of the hydrogen exiting the evaporator and a fifth portion of the hydrogen exiting the at least one auxiliary component and supply the fourth and fifth portions downstream to the engine,

wherein the hydrogen fuel delivery system is configured to supply the hydrogen to the engine for combustion and cool the heat source using the hydrogen.

14 . The method of claim 13 , wherein the at least one component comprises at least one of an oil cooler and a preheater.

15 . The method of claim 13 , wherein the pump is configured to deliver the first portion of the hydrogen in the liquid state directly to the at least one component.

16 . The method of claim 13 , further comprising: splitting, via the first connector, the hydrogen in the liquid state into the third portion that flows to the at least one auxiliary component to cool the at least one auxiliary component.

17 . The method of claim 13 , further comprising:

arranging a first metering valve between the first connector and the evaporator that is configured to regulate a flow of the hydrogen in the liquid state to the evaporator.

18 . The method of claim 17 , further comprising:

arranging a second metering valve between the first connector and the at least one component that is configured to regulate a flow of the hydrogen in the liquid state to the at least one component.