Fuel injection device
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United States of America Patent
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May 7, 2019
Grant Date -
Feb 1, 2018
app pub date -
Mar 23, 2016
filing date -
Apr 9, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a fuel injection device including a body portion that forms an injection hole through which a fuel is injected, the body portion includes an inlet-channel-forming portion that is connected to an inflow port of the fuel in the injection hole and forms an inlet channel which is a fuel flow channel, and an outlet-channel-forming portion that is connected to the inlet channel and an outflow port of the fuel in the injection hole, and forms an outlet channel that is a fuel flow channel. A surface roughness of the outlet-channel-forming portion is larger than a surface roughness of the inlet-channel-forming portion.
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