Fuel injection valve
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United States of America Patent
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Sep 1, 2015
Grant Date -
Aug 15, 2013
app pub date -
Oct 25, 2012
filing date -
Feb 14, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
In a fuel injection valve, a pipe line through which fuel is uniformly caused to flow is supposed from a flow quantity of fuel flowing into each of communication passages which is communicated between a corresponding one of a plurality of swirl generating chambers and an opening section of a valve seat member and, if a diameter of the pipe line is assumed to be da and a diameter of each of injection holes is assumed to be d0, da/d0 is set such that a spray angle of fuel injected from each of the injection holes provides a desired spray angle and the communication passages and the injection holes are designed such that at least one of fuel sprays injected from the respective injection holes is contacted on any other fuel sprays at a lower position than a liquid film part.
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