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Fuel cell system

A fuel cell system and fuel cell technology, applied in the direction of fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve the problems of heavy design structure, increased system burden, expensive, etc., to achieve fast start, simple and effective defrosting Effect

Inactive Publication Date: 2014-04-09
DAIMLER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Consequently, the energy required to defrost water-conducting parts and components significantly burdens the system during the start-up phase and requires, as an absolute necessity, higher-capacity electrical energy storage, which in turn makes the design heavier, bigger and more expensive

Method used

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  • Fuel cell system

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Embodiment Construction

[0016] A fuel cell system 1 according to the invention is shown in the single drawing. The fuel cell system has a fuel cell 2 with an anode region 3 and a cathode region 4 . Hydrogen is conveyed from a compressed gas store 5 to the anode region 3 of the fuel cell 2 via a throttle valve 6 . The unconsumed exhaust gas from the area of ​​the anode space 3 is returned to the area of ​​the anode space 3 via the circulation line 7 and the circulation conveying device 8 , and it is conveyed again into the anode area together with fresh hydrogen from the compressed gas store 5 . This structure is also commonly known as an anode loop. It is purely exemplary with respect to the embodiments described here. In principle, it is also conceivable for the fuel cell 2 without an anode circuit, for example as a final fuel cell, or to discharge unconsumed exhaust gas, for example to a catalytic burner or the like.

[0017] Filtered fresh air is delivered as an oxygen supply into the cathode ...

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PUM

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Abstract

The invention relates to a fuel cell system (1) comprising at least one fuel cell (2), with water-guiding component parts and components (10, 11, 14, 15) in the region of the feed and discharge of educts and products to and from the fuel cell (2), comprising at least one cooling circuit (16) with a liquid cooling medium for cooling the fuel cell (2). The invention is characterized in that the water-guiding component parts and components (10, 11, 14, 15) are in thermal contact with the cooling medium at least during individual operating phases of the fuel cell (2).

Description

technical field [0001] The invention relates to a fuel cell system of the type stated in the preamble of claim 1 with at least one fuel cell. Furthermore, the invention also relates to the application of such a fuel cell system. Background technique [0002] Fuel cell systems are known from the known prior art. A fuel cell system usually has a fuel cell which is designed in the form of a so-called PEM fuel cell. Such fuel cell systems are preferably used in the mobile sector, for example in motor vehicles, to at least partially generate electric traction energy. There are usually various system components in such a fuel cell system, such as an air supply subsystem, a fuel supply subsystem, and the like. Because product water tends to accumulate in the region of the fuel cell and must be vented, such fuel cell systems typically have at least one (but typically multiple) and / or liquid water in the form of water droplets is separated from the gas stream to the fuel cell. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04F28D9/00
CPCH01M8/04007H01M8/04164H01M8/04253H01M8/04029Y02E60/50H01M8/04067
Inventor T·鲍尔C·马佐塔H-J·沙贝尔
Owner DAIMLER AG