# US 11,079,068 B2 · Rapid fill compressed gas storage tank

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- Number: US 11,079,068 B2
- Document ID: US11079068B2
- Status: Granted
- Kind: B2
- Application number: 16/989,815
- Filed: 2020-08-10
- Published: 2021-02-11
- Granted: 2021-08-03
- Earliest claimed: 2019-08-08
- Assignees: TDA Research, Inc.
- Applicants: TDA Research, Inc
- Inventors: Ambalavanan Jayaraman; Michael Travis Bonnema
- Web page: https://patentgrep.com/patent/US11079068B2

## CPC

- F17C 5/06: for filling with compressed gases
- F17C 13/026: {having the temperature as the parameter}
- F17C 2201/0109: with exteriorly curved end-piece
- F17C 2201/056: Small (<1 m3)
- F17C 2201/058: portable (<30 l)
- F17C 2203/0604: Liners
- F17C 2203/0619: with two layers
- F17C 2205/0305: Bosses, e.g. boss collars
- F17C 2209/232: of walls
- F17C 2221/012: Hydrogen
- F17C 2223/0123: gaseous, e.g. CNG, GNC
- F17C 2223/036: Very high pressure (>80 bar)
- F17C 2250/043: Pressure
- F17C 2250/0439: Temperature
- F17C 2260/021: Avoiding over pressurising
- F17C 2260/023: Avoiding overheating
- F17C 2260/025: Reducing transfer time
- F17C 2260/026: by calculation
- F17C 2265/065: for refuelling vehicle fuel tanks
- F17C 2270/0184: Fuel cells
- 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 method for rapidly filling a compressed gas storage tank with a moderated temperature rise using a Coanda nozzle to inject the feed gas into the tank and using the Coanda nozzle to direct the feed gas along the inner surface of the storage tank; entraining the stored gas with the feed gas that is flowing under the influence of the Coanda effect to flow along the inner surface of the gas storage tank; and transferring heat from the flowing gas to the external walls of the tank. Also, a compressed gas storage tank for rapid filling with a moderated temperature rise comprising: a gas storage tank and a Coanda nozzle capable of directing feed gas that is injected into the gas storage tank along the inner surface of the gas storage tank.

## Claims

### Claim 1

A method for rapidly filling a compressed gas storage tank with a moderated temperature rise, comprising:
a. providing a gas storage tank, wherein the gas storage tank has an inner surface, an outer surface, a proximal end, a distal end, and a midpoint between the proximal end and the distal end;
b. providing a stored gas, wherein the stored gas is contained inside the gas storage tank;
c. providing a feed gas;
d. providing a Coanda nozzle to inject the feed gas into the gas storage tank, wherein the Coanda nozzle is effectively connected to the proximal end of the gas storage tank;
e. injecting the feed gas into the gas storage tank through the Coanda nozzle;
f. using the Coanda nozzle to direct the feed gas along a curved surface of the Coanda nozzle, wherein a Coanda effect causes the feed gas to flow along the inner surface of the gas storage tank;
g. providing a gas mixing zone at the proximal end of the gas storage tank that is in fluid communication with the feed gas;
h. entraining the stored gas with the feed gas in the gas mixing zone to form a mixed gas using inertia of the feed gas that is flowing under influence of the Coanda effect to direct the mixed gas to flow along the inner surface of the gas storage tank;
i. transferring heat from the mixed gas to the gas storage tank;
j. providing a phase change material along the inner surface of the gas storage tank;
k. transferring heat from the flowing gas to the phase change material;
l. providing an inner liner and providing a gap, wherein the inner liner is positioned inside the gas storage tank such that it forms the gap between the inner surface of the gas storage tank and the inner liner, wherein the mixed gas flows through the gap; and,
wherein providing the inner liner provides the gap for the mixed gas to flow through that is continuous from the proximal end to at least 15% of a length from the proximal end to the distal end of the gas storage tank.

### Claim 2 (depends on 1)

The method of claim 1, wherein providing the inner liner provides the gap for the mixed gas to flow through that is continuous from the proximal end to at least to the midpoint of the gas storage tank.

### Claim 3 (depends on 2)

The method of claim 2, wherein providing the inner liner provides the gap for the mixed gas to flow through that is continuous from the proximal end to at least 90% of a distance from the proximal end to the distal end of the gas storage tank.

### Claim 4 (depends on 3)

The method of claim 3, wherein the inner liner comprises a phase change material and
m. transferring heat from the mixed gas to the inner liner.

### Claim 5

A compressed gas storage tank for rapid filling with a moderated temperature rise, the gas storage tank comprising:
a gas storage tank comprising a pressure vessel, an inner surface, an outer surface, a proximal end, a distal end and a midpoint between the proximal end and the distal end;
a Coanda nozzle, wherein the Coanda nozzle is operably connected to the gas storage tank at the proximal end, and wherein the Coanda nozzle comprises a curved surface capable of directing feed gas that is injected into the gas storage tank along the inner surface of the gas storage tank;
an inner liner, wherein the inner liner is positioned inside the gas storage tank such that it forms a gap that injected gas can flow through, the gap being located between the inner surface of the gas storage tank and the inner liner;
wherein the inner liner comprises an orifice that defines a mixing zone adjacent to the Coanda nozzle, wherein the mixing zone can operably mix feed gas with gas inside the gas storage tank;
wherein the inner liner extends from the proximal end of the gas storage tank to at least 15% of a distance from the proximal end to the distal end.

### Claim 6 (depends on 5)

The gas storage tank of claim 5, wherein the inner liner extends from the proximal end of the gas storage tank to at least the midpoint of the gas storage tank.

### Claim 7 (depends on 6)

The gas storage tank of claim 6, wherein the inner liner extends from the proximal end of the gas storage tank to at least 90% of a distance from the proximal end to the distal end.

### Claim 8 (depends on 7)

The gas storage tank of claim 7, wherein the inner liner comprises a phase change material.