System for precooling a hydrogen fuel dispenser
AssigneeZev Station Holding, LLC
InventorsJesse Schneider, Bob Boyd
Life of this patent
Estimating the term…
Abstract
A hydrogen fueling system for vehicles includes a hydrogen storage tank holding liquid hydrogen, 400 to 500 bar storage systems for compressed hydrogen, and hydrogen dispensers providing fuel to vehicles. A pump circulates hydrogen from the storage tank through a heat conditioning system to the dispenser at a desired fueling temperature. A control system manages pump flow through the dispenser supply system, precooling the dispensers and supplementing flow from storage when fueling vehicles with onboard storage exceeding 250 liters. This system efficiently delivers hydrogen fuel to vehicles, ensuring optimal fueling conditions and accommodating varying storage capacities.
Claims20
A hydrogen fueling system configured to provide hydrogen fuel to a vehicle, comprising:
- a hydrogen storage tank containing delivered liquid hydrogen;
- one or more 400 to 500 bar storage systems to store compressed hydrogen;
- one or more hydrogen dispensers configured to supply hydrogen fuel to the vehicle;
- a pump configured to move the hydrogen fuel from the liquid hydrogen storage tank and circulate the hydrogen fuel through a heat conditioning system to supply hydrogen at the one or more hydrogen dispensers at a desired fueling temperature;
- and
- a control system to direct pump flow through the dispenser supply system to and fill storage to precool the one or more hydrogen dispensers and direct flow from storage to supplement the flow from the pump when fueling vehicles with onboard storage greater than 250 liters.
A hydrogen fueling system configured to provide hydrogen fuel to a vehicle, comprising:
- a first hydrogen storage tank;
- a hydrogen dispenser configured to supply hydrogen fuel to the vehicle;
- a pump configured to transport the hydrogen fuel from the first hydrogen storage tank to the hydrogen dispenser;
- and
- a second hydrogen storage tank, wherein the hydrogen fuel stored in the second hydrogen storage tank passes through a fixed orifice and mixes with the hydrogen fuel flowing from the pump within a venturi eductor.
A method of operating a hydrogen fueling system configured to provide hydrogen fuel to a vehicle having a liquid hydrogen supply tank holding a quantity of liquid hydrogen at a first temperature, comprising:
- drawing the liquid hydrogen from the liquid hydrogen supply tank using a pump;
- feeding the liquid hydrogen from the pump to a first manifold that delivers a first portion of the liquid hydrogen to a heat exchanger that warms the first portion of the liquid hydrogen to a first hydrogen gas flow having a second temperature higher than the first temperature and delivers a second portion of the liquid hydrogen as a second hydrogen gas flow having a third temperature higher than the first temperature but lower than the second temperature;
- mixing the first hydrogen gas flow controlled by a first valve and second hydrogen gas flow controlled by a second valve in a second manifold provide a third hydrogen gas flow at a desired temperature;
- and
- providing the third hydrogen gas flow to a dispenser to cool and maintain the dispenser at the desired temperature.
Dependencies are inferred from the claim text.