# US 11,306,873 B2 · Universal hydrogen filling performance evaluation system for back-to-back filling performance evaluation and capacity-specific filling performance evaluation

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- Number: US 11,306,873 B2
- Document ID: US11306873B2
- Status: Granted
- Kind: B2
- Application number: 16/815,931
- Filed: 2020-03-11
- Published: 2021-04-22
- Granted: 2022-04-19
- Earliest claimed: 2019-10-17
- Assignees: Hyundai Motor Company; Kia Motors Corporation
- Applicants: Hyundai Motor Company; Kia Motors Corporation
- Inventors: Dae Nyung Lee; Aeun Yoon
- Web page: https://patentgrep.com/patent/US11306873B2

## CPC

- F17C 5/06: for filling with compressed gases
- F17C 13/02: Special adaptations of indicating, measuring, or monitoring equipment (measuring in general G01)
- F17C 5/00: Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures (adding propellants to aerosol containers B65B31/00)
- F17C 5/007: {for individual gas tanks or containers, e.g. in vehicles (filling with liquid fuel not under pressure, B60S5/02, B67D7/00)}
- F17C 2201/0166: divided in several chambers
- F17C 2201/054: medium (>1 m3)
- F17C 2201/056: Small (<1 m3)
- F17C 2205/0142: bundled in parallel
- F17C 2205/0323: Valves
- F17C 2221/012: Hydrogen
- F17C 2223/0123: gaseous, e.g. CNG, GNC
- F17C 2223/036: Very high pressure (>80 bar)
- F17C 2225/0123: gaseous, e.g. CNG, GNC
- F17C 2225/036: Very high pressure, i.e. above 80 bars
- F17C 2250/03: Control means
- F17C 2250/032: using computers
- F17C 2250/0408: Level of content in the vessel
- F17C 2250/0636: Flow or movement of content
- F17C 2265/061: for supply of supplying vehicles
- F17C 2265/063: for supply of refuelling stations
- F17C 2265/065: for refuelling vehicle fuel tanks
- F17C 2270/0139: Fuel stations
- F17C 2270/0168: by vehicles
- Y02E 60/32: Hydrogen storage
- F17C: VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES (storing fluids in natural or artificial cavities or chambers in the earth B65G5/00; construction or assembling of bulk storage containers employing civil-engineering techniques E04H7/00; variable-capacity gas-holders F17B; liquefaction or refrigeration machines, plants, or systems F25)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A system for evaluating filling performance of hydrogen storages having various capacities uses a plurality of nozzles, a plurality of receptacles, and a plurality of hydrogen storages, and includes discharging hydrogen filled in one hydrogen storage while filling another hydrogen storage with hydrogen. Evaluation of filling performance may be performed in a back-to-back manner such that hydrogen is introduced into one of the plurality of hydrogen storages and discharged from another of the hydrogen storages. The plurality of hydrogen storages have various capacities, and introduction of hydrogen into the plurality of hydrogen storages is controlled according to a combination of hydrogen storages that corresponds to an evaluation target capacity, such that filling performance evaluation for various capacities is possible.

## Claims

### Claim 1

A universal hydrogen filling performance evaluation system for carrying out back-to-back filling performance evaluation and capacity-specific filling evaluation, comprising:
a plurality of receptacles connected to a plurality of nozzles included in a dispenser, respectively, and through which hydrogen is introduced into a plurality of hydrogen storages,
the plurality of hydrogen storages having various capacities, receiving the hydrogen from the plurality of receptacles, and storing the hydrogen therein,
wherein an introduction control valve is positioned between the plurality of receptacles and the plurality of hydrogen storages, and the introduction control valve is positioned between the plurality of hydrogen storages such that a state in which the back-to-back filling performance evaluation is allowed is created by controlling opening and closing of the introduction control valve to introduce hydrogen into one of the plurality of hydrogen storages to fill the one of the plurality of hydrogen storages with the hydrogen, and at the same time, by discharging hydrogen from another of the hydrogen storages.

### Claim 2 (depends on 1)

The universal hydrogen filling performance evaluation system of claim 1, wherein a manifold is positioned between the plurality of receptacles and the plurality of hydrogen storages, and hydrogen introduction pipes having different dimensions and through which hydrogen is introduced into the plurality of hydrogen storages are connected through the manifold.

### Claim 3 (depends on 2)

The universal hydrogen filling performance evaluation system of claim 2, wherein a filling performance evaluation is performed by controlling introduction of hydrogen into the plurality of hydrogen storages according to a combination of the hydrogen storages that corresponds to an evaluation target capacity.

### Claim 4 (depends on 2)

The universal hydrogen filling performance evaluation system of claim 2, wherein the hydrogen introduction pipes are connected to the hydrogen storages, respectively, and input valves connected to the hydrogen introduction pipes, respectively, are provided in a large-sized hydrogen storage, and a filling performance evaluation for various capacities is performed by controlling opening and closing of the input valves according to a combination of the hydrogen storages that corresponds to an evaluation target capacity to introduce hydrogen into each of the plurality of hydrogen storages.

### Claim 5 (depends on 2)

The universal hydrogen filling performance evaluation system of claim 2, wherein the plurality of hydrogen introduction pipes having different dimensions are connected through the manifold to unify an evaluation time during which the plurality of hydrogen storages are filled with hydrogen.

### Claim 6 (depends on 2)

The universal hydrogen filling performance evaluation system of claim 2, wherein the plurality of hydrogen storages each have at least one of a capacity of 1 kg, a capacity of 5 kg, or a capacity of 10 kg.

### Claim 7 (depends on 6)

The universal hydrogen filling performance evaluation system of claim 6, wherein the plurality of hydrogen storages each include a hydrogen discharging pipe, and the hydrogen discharging pipe connected to each of the plurality of hydrogen storages is connected to the manifold to discharge hydrogen through one hydrogen discharging port according to a control of a discharging valve.

### Claim 8 (depends on 6)

The universal hydrogen filling performance evaluation system of claim 6, wherein five hydrogen storages each having a capacity of 1 kg, one hydrogen storage having a capacity of 5 kg, and three hydrogen storages each having a capacity of 10 kg are provided, and a filling performance evaluation for a capacity in a range from 1 kg to 40 kg is performed by controlling introduction of hydrogen into the plurality of hydrogen storages according to a combination of the hydrogen storages that corresponds to an evaluation target capacity.

### Claim 9 (depends on 6)

The universal hydrogen filling performance evaluation system of claim 6, wherein one hydrogen storage having a capacity of 1 kg, one hydrogen storage having a capacity of 5 kg, and one hydrogen storage having a capacity of 10 kg are provided, and a filling performance evaluation for various capacities is performed by controlling the number of times of inputting and filling of hydrogen into the plurality of hydrogen storages according to a combination of the hydrogen storages that corresponds to an evaluation target capacity.

### Claim 10 (depends on 6)

The universal hydrogen filling performance evaluation system of claim 6, wherein the plurality of hydrogen storages each having a capacity of 1 kg, 5 kg, or 10 kg are hydrogen storages formed by partitioning one large-sized hydrogen storage by using a partition, the plurality of hydrogen introduction pipes are connected to the hydrogen storages, respectively, and input valves connected to the hydrogen introduction pipes, respectively, are provided in the large-sized hydrogen storage, and a filling performance evaluation for various capacities is performed by controlling opening and closing of the input valve according to a combination of the hydrogen storages that corresponds to an evaluation target capacity to introduce hydrogen into each of the plurality of hydrogen storages.