Fuel injection valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 17, 2003
Grant Date -
Aug 2, 2001
app pub date -
Jan 12, 2001
filing date -
Jan 27, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The fuel injection valve according to the present invention is a fuel injection valve adapted to inject a swirl flow of a high-pressure fuel from an injection port thereof. The injection port includes a fuel inlet portion and a fuel outlet portion. The fuel inlet portion has a cylindrical bore. In the fuel outlet portion, a circumference of an inlet thereof is joined to that of an outlet of the cylindrical bore, and the fuel outlet portion has a cross-sectionally elliptic chamfered part diverging from the inlet thereof to the outlet thereof. A depth of the chamfered part is set 1/4 to 2 times as large as a diameter of the fuel inlet portion.
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