Fuel supply device for fuel cell
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 30, 2003
Grant Date -
Feb 21, 2002
app pub date -
Aug 9, 2001
filing date -
Aug 10, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A fuel supply device is provided capable of supplying a necessary amount of fuel while ensuring predetermined stoichiometric characteristics over a wide range of flow rates. The body unit of the fuel supply device includes the first ejector, the second ejector, and a switching valve. The switching valve has a function to select either one of a first passage or a second passage for communicating with the valve chamber and to block the other passage. The first passage is communicated with a nozzle of the first ejector, and the second passage is communicated with a nozzle of the second ejector. The first ejector has a diffuser passage communicated with the reflux chamber, the second ejector has a diffuser passage communicated with the reflux chamber, and the diffuser passage 43 and the diffuser passage are connected with a hydrogen outlet through a merging passage.
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