Fuel injection valve
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United States of America Patent
Stats
-
Apr 25, 2006
Grant Date -
Aug 5, 2004
app pub date -
Dec 23, 2002
filing date -
Feb 26, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine is provided, which injector includes a valve needle having at its spray-discharge end a valve-closure member, which cooperates with a valve-seat surface formed on a valve-seat member to form a sealing seat. At least one swirl channel is provided in a section of the valve-seat member surrounding the valve needle, and at least one spray-discharge orifice is provided in the valve-seat member. The at least one swirl channel, when viewed through the swirl channel in the flow direction of the fuel, is inclined counter to the spray-discharge direction relative to the center axis of the valve needle.
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