Fuel injector
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United States of America Patent
Stats
-
Sep 2, 2003
Grant Date -
Oct 25, 2001
app pub date -
Jan 12, 2001
filing date -
Jan 15, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fuel injector for delivering fuel to a combustion space comprises a valve needle which is movable within a bore provided in a nozzle body and which is engageable with a seating to control the supply of fuel from the bore. The injector further comprises a return flow passage for permitting fuel to escape from the bore to a low pressure drain upon initial movement of the valve needle away from its seating. The injector may include a cover member which defines, together with the nozzle body, a part of the return passage for fuel through which fuel flows, in use, to reduce the temperature of the nozzle body.
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