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Fuel cell and air supply system thereof

An air supply and fuel cell technology, applied in the direction of fuel cells, electrical components, battery/battery traction, etc., can solve the problems of strong blade vibration, increased impeller stress, parking, etc., to maintain system safety and avoid surge phenomenon Effect

Pending Publication Date: 2020-06-02
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

When the surge phenomenon occurs, the strong vibration of the blade due to the strong pulsation and periodic oscillation of the airflow will increase the stress of the impeller, increase the noise, and may damage the bearing, sealing structure, etc., and even cause parking or serious accidents; at present, the use of centrifugal compression The fuel cell air supply system of the engine did not take effective measures to prevent surge,

Method used

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  • Fuel cell and air supply system thereof

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Embodiment Construction

[0019] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other open. For example, "first" information may also be referred to as "second" information without departing from the scope of the present invention, and similarly, "second" information may also be referred to as "first" information.

[0021] like figure 1 As shown, the preferred embodiment of the first aspect of the present invention provides an air supply system for a fuel ...

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Abstract

The invention relates to the technical field of automobile accessories, and discloses an air supply system and a fuel cell comprising the same. The air supply system comprises an air compressor assembly, a pressurized air supply main path and a bypass branch; an air inlet of the air compressor assembly is communicated with the external environment, and an air outlet of the air compressor assemblyis communicated with a cathode air inlet of a cell reactor of the fuel cell through the pressurized air supply main path; the first end of the bypass branch is communicated with the pressurized air supply main path, and the second end of the bypass branch is communicated with an air inlet of the air compressor assembly; the bypass branch is provided with a bypass control valve capable of controlling air to flow from the first end of the bypass branch to the second end of the bypass branch in a one-way mode. The invention has the beneficial effect that the surge phenomenon of the air compressorassembly under the idling working condition of the fuel cell can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of automobile accessory systems, in particular to a fuel cell and an air supply system thereof. Background technique [0002] As an important technical direction of new energy vehicles in the future, fuel cell vehicles have developed rapidly in recent years, and have also attracted the attention and attention of more and more companies. The fuel cell air supply system provides air at a certain pressure for the battery reactor. When the fuel cell enters the idling state, there is a risk of surge due to the low-speed operation of the air compressor assembly. When the surge phenomenon occurs, the strong vibration of the blade due to the strong pulsation and periodic oscillation of the airflow will increase the stress of the impeller, increase the noise, and may damage the bearing, sealing structure, etc., and even cause parking or serious accidents; at present, the use of centrifugal compression The fuel cell ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04089H01M8/04119B60L50/70
CPCH01M8/04089H01M8/04126Y02T90/16Y02T90/40Y02E60/50
Inventor 董江波李剑铮陈建树
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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