# US 11,897,326 B2 · Fuel tank

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- Number: US 11,897,326 B2
- Document ID: US11897326B2
- Status: Granted
- Kind: B2
- Application number: 17/897,642
- Filed: 2022-08-29
- Published: 2023-04-13
- Granted: 2024-02-13
- Earliest claimed: 2021-10-08
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Zixun Mei; Nobuyuki Tomatsu; Hiroyuki Kobayashi
- Web page: https://patentgrep.com/patent/US11897326B2

## CPC

- B60K 15/063: Arrangement of tanks
- B60K 15/077: with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
- B60K 15/03006: {Gas tanks (B60K15/07 takes precedence)}
- B60K 15/03177: {made of non-metallic material, e.g. plastics, or of a combination of non-metallic and metallic material (B60K15/03006 takes precedence)}
- B60K 15/07: of gas tanks
- B60K 2015/03046: {made from more than one layer}
- B60K 2015/03184: {Exchangeable tanks, i.e. the empty tank is replaced by refilled tank}
- B60K 2015/03217: {Fuel level sensors}
- B60K 2015/03256: {characterised by special valves, the mounting thereof}
- B60K 2015/03315: {for hydrogen}
- B60K 2015/0638: {the fuel tank is arranged in the rear of the vehicle}
- B60Y 2400/306: Pressure sensors
- Y02E 60/32: Hydrogen storage
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A fuel tank comprises a circular column-shaped fuel tank body, a handle, and a lock mechanism. The circular column-shaped fuel tank body is provided so as to be capable of being detachably attached to a fuel-powered device. The handle is formed on one end side in a length direction of the fuel tank body. The lock mechanism is capable of switching between a locked state in which the fuel tank body cannot be removed from the fuel-powered device, and a lock-released state in which the locked state has been released, due to the fuel tank body being rotated in a circumferential direction in a state of being installed to the fuel-powered device.

## Claims

### Claim 1

A fuel tank comprising:
a circular column-shaped fuel tank body provided so as to be capable of being detachably attached to a fuel-powered device;
a handle formed on one end side in a length direction of the fuel tank body;
a lock mechanism that is capable of switching between a locked state in which the fuel tank body cannot be removed from the fuel-powered device, and a lock-released state in which the locked state has been released, due to the fuel tank body being rotated in a circumferential direction in a state of being installed to the fuel-powered device; and
a recess indented in the length direction on the one length direction end side of the fuel tank body, the recess is formed in a cover member that is capable of being detachably attached to the fuel tank body,
wherein the handle is provided inside the recess.

### Claim 2 (depends on 1)

The fuel tank of claim 1, wherein the handle is integrally provided at the fuel tank body.

### Claim 3 (depends on 1)

The fuel tank of claim 1, wherein the handle is provided so as not to project out from an end face on the one end side of the fuel tank body.

### Claim 4 (depends on 1)

The fuel tank of claim 1, wherein the handle is formed so as to extend in a long thin shape along a radial direction of the fuel tank body.

### Claim 5 (depends on 1)

The fuel tank of claim 1, further comprising a remaining fuel level display section configured to display a remaining level of fuel in the fuel tank body.

### Claim 6 (depends on 5)

The fuel tank of claim 5, wherein the remaining fuel level display section is provided at a position visible from outside the fuel-powered device in a state in which the fuel tank body has been installed to the fuel-powered device.