FUEL INJECTION VALVE

DRIVE September 14, 2016
Source
An object of the present invention is to provide a fuel injection valve that imparts swirl upstream of a seat portion and shortens a spray penetration. At injection holes 72 and 74 set adjacent to an injection hole 73 and at injection holes 71 and 75 set adjacent otherwise, nonuniform pitch angles ²1 and ²2 among the holes as well as stronger flows into the injection holes 72 and 74 by a smaller angle ± due to a smaller inflow angle ²1 of a fluid into the injection holes 72 and 74 can shorten the spray penetration at the injection hole 73.

Discussion in the ATmosphere

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