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Air cleaner for fuel cell vehicle

一种燃料电池车辆、空气滤清器的技术，应用在燃料电池、动力系统燃料电池、电动汽车等方向，能够解决燃料电池组输出减小等问题，达到简单结构的效果

Active Publication Date: 2019-07-16
TOYOTA JIDOSHA KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accordingly, it is difficult to remove molecular (gaseous) harmful chemicals through filter elements provided in engine air cleaners to remove dust and airborne particulate matter
Molecular (gaseous) harmful chemicals that reduce the output of the fuel cell stack

Method used

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  • Air cleaner for fuel cell vehicle
  • Air cleaner for fuel cell vehicle
  • Air cleaner for fuel cell vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 1 is a view schematically illustrating the fuel cell system of the fuel cell vehicle 30 according to the present embodiment. The fuel cell vehicle 30 is provided on the front side in the front-rear direction of the vehicle with a grill 31 as an intake port through which external air is sucked in. as in figure 1 Indicated by blank arrows in , in the fuel cell vehicle 30 , the air sucked from the grill 31 is introduced into the supply pipe 32 through the intake port (not shown). The supply pipe 32 is provided with an air cleaner 1 , an air feeder (air compressor) 33 and an opening / closing valve (not shown). The air cleaner 1 removes foreign substances included in the air. An air feeder (air compressor) 33 takes in external air and compresses it to a predetermined pressure to send the external air to the downstream side. The opening / closing valve controls the entry and exit of air as cathode gas into and out of the fuel cell stack (hereinafter also referred to a...

Embodiment 2

[0056] The difference between this embodiment and Embodiment 1 is that the filter element of the air filter 21 is a charged filter 22 . Differences from Embodiment 1 are mainly described below.

[0057] Figure 4 is a sectional view schematically illustrating the air cleaner 21 for a fuel cell vehicle according to the present embodiment. The air cleaner 21 is provided with a first pre-filter 4 , a chemical filter 3 , a second pre-filter 5 , and a charged filter 22 in order from the upstream side.

[0058]The charged filter 22 includes a rectangular filter medium 22 a and a sealing member 22 b provided on the outer periphery of the filter medium 22 a so as to constitute a peripheral edge of the charged filter 22 . The filter medium 22a is formed such that a layer of resin non-woven fabric attached to a woven filter paper undergoes polarization treatment and is then folded into pleats. The charged filter 22 removes dust and particulate matter from the air, similar to the filt...

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PUM

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Abstract

An air cleaner for a fuel cell vehicle includes: a case having an inlet and an outlet; and a filter element fixed to the case, the filter element being configured to section the case into an inlet side and an outlet side and filter air flowing from the inlet side to the outlet side. A locking projection projecting toward the inside of the case is provided on the inlet side in the case. A first prefilter, a second prefilter, and a chemical filter are sandwiched between the locking projection and the filter element in the order of the first prefilter, the chemical filter, and the second prefilter from the upstream side as the inlet side of the filter element inside the case toward the downstream side as the outlet side of the filter element inside the case.

Description

technical field [0001] The present invention relates to an air cleaner for a fuel cell vehicle, which is provided in an air intake system for supplying air to a fuel cell stack. Background technique [0002] A fuel cell stack provided in a fuel cell vehicle is generally formed such that a plurality of single cells are stacked, and in each of the plurality of single cells, an electrode assembly is sandwiched between separators. The electrode assembly is configured such that the hydrogen electrode catalyst and the oxygen electrode catalyst are applied to opposite surfaces of the solid polymer electrolyte membrane, respectively. However, when a catalyst using a noble metal such as titanium is exposed to impurities such as dust, PM2.5 (fine particulate matter) and molecular harmful chemicals in the air, its activity decreases. Therefore, when air to be used as cathode gas is supplied to the fuel cell stack without removing impurities, the activity of the catalyst decreases. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0662B01D46/10B01D53/86
CPCH01M8/0687B01D53/86B01D46/10B01D46/0036B01D2279/60B01D53/0407B01D2253/102B01D2253/1124B01D2257/302B01D2257/404B01D2257/406B01D46/0032H01M2250/20H01M2008/1095Y02T10/70Y02T90/14Y02T10/7072B01D46/0002B01D2256/16B01D2221/00
Inventor 市川哲也吉田贵美子后藤润平田隆三木规晶
Owner TOYOTA JIDOSHA KK
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