DAMPING ARRANGEMENT FOR A FUEL INJECTOR
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United States of America Patent
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Issued Date -
N/A
app pub date -
Oct 28, 2010
filing date -
Mar 20, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A fuel injector for use in an internal combustion engine, the fuel injector comprising: a valve needle which is engageable with a valve needle seat to control fuel injection through an injector outlet; an actuator arrangement arranged to control fuel pressure within a control chamber, a surface associated with the valve needle being exposed to fuel pressure within the control chamber such that fuel pressure variations within the control chamber control movement of the valve needle relative to the valve needle seat; damping means for damping opening movement of the valve member, the damping means comprising a damper chamber and the damping means being arranged such that fuel pressure variations within the damper chamber damp opening movement of the valve member wherein the damping means is arranged such that in use there is a through flow of fuel through the damper chamber.
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