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Gas tank

A technology for gas storage tanks and gas filling, which is applied to fixed-capacity gas storage tanks, electrical components, climate sustainability, etc., and can solve the problem of consumption efficiency (decreased fuel utilization rate, high cost of pressure reducing valves, hydrogen cannot be well recovered) Consumption and other issues

Active Publication Date: 2015-07-15
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, when hydrogen is supplied at such a high pressure, the hydrogen cannot be well consumed in the fuel cell and is discharged outside the vehicle as it is, and the hydrogen consumption efficiency (fuel utilization rate) may decrease.
[0008] Here, a method of installing a wide-range pressure reducing valve with a large control range is also considered, but such a wide-range pressure reducing valve is very expensive, so it requires cost

Method used

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Embodiment Construction

[0033] Below, refer to Figure 1 to Figure 6 , an embodiment of the present invention will be described.

[0034] "Structure of Fuel Cell Vehicle"

[0035] The fuel cell vehicle 100 (vehicle, mobile body) of this embodiment includes a fuel cell stack 110 (fuel cell), a hydrogen tank 1 (gas tank), a pressure reducing valve 121 , a compressor 131 , and a diluter 132 .

[0036] It should be noted that specific types of the fuel cell vehicle 100 include, for example, four-wheeled vehicles, tricycles, two-wheeled vehicles, unicycles, and trains.

[0037] The fuel cell stack 110 is a solid polymer fuel cell (Polymer Electrolyte Fuel Cell: PEFC), in which single cells formed by sandwiching an MEA (Membrane Electrode Assembly, membrane electrode assembly) between separators (not shown) are stacked. constituted. The MEA includes an electrolyte membrane (solid polymer membrane), and a cathode and an anode sandwiching the electrolyte membrane. An anode flow path 111 (fuel gas flow pa...

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Abstract

Provided is a gas tank such that the pressure of gas filled inside does not tend to rise. A hydrogen gas tank (1) is equipped with a container body (10) filled with hydrogen; a first thermally foamed heat insulation layer (21) which is provided to the outer surface (11) of the container body (10); a belt installation region (16) which is virtually provided to part of the outer surface (11) of the container body (10); a belt (31) such that a back surface (35) which is part of the surfaces of the belt (31) is in contact with the belt installation region (16) and is fixed to a vehicle body (141), resulting in the container body (10) being fixed to the vehicle body (141); and a second thermally foamed heat insulation layer (41) that is provided to that surface of the belt (31) which is other than the back surface (35).

Description

technical field [0001] The present invention relates to gas storage tanks. Background technique [0002] In recent years, the development of a fuel cell vehicle that mounts a fuel cell and runs using its electric power has progressed. In addition to the fuel cell, this type of fuel cell vehicle is also equipped with a hydrogen tank (air storage tank) that supplies hydrogen (fuel gas) to the fuel cell, a compressor that supplies air, and a refrigeration unit that circulates the refrigerant through the fuel cell. Chemical pumps, PDUs (Power Drive Units) that convert DC power into AC power, electric motors for driving, transmission systems that transmit the driving force of the motors to the drive wheels, etc. [0003] Here, external devices such as compressors, refrigerant pumps, PDUs, and transmission systems generate heat as they work. [0004] In addition, the hydrogen tank is filled with hydrogen at high pressure, and a plurality of pressure reducing valves (regulators) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K15/03F17C1/12F17C13/08H01M8/00H01M8/04H01M8/10
CPCY02E60/50F17C2270/0189F17C2260/021F17C2205/0126F17C2203/0329F17C2225/036H01M2250/20F17C2221/011B60K15/03B60K1/00B60K2015/03046B60K2015/03039F17C2225/0123B60K15/07F17C13/084B60K15/03006F17C2203/0663H01M8/04201F17C2221/014F17C2205/0157F17C2205/0326F17C2221/033F17C2203/0646F17C2270/0173F17C2203/0619Y02E60/321Y02T90/32F17C2203/0604F17C2201/056F17C2270/0184F17C2203/0607F17C2270/0168F17C2201/0109Y02E60/32Y02T90/40
Inventor 判田圭
Owner HONDA MOTOR CO LTD