Fuel injector
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 18, 2002
Grant Date -
Nov 1, 2001
app pub date -
Jan 25, 2001
filing date -
Jan 27, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A fuel injector for use in an injector arrangement including a fuel pump having a pump chamber and a spill valve arrangement including a spill valve member which is engageable with a valve seating to control communication between the pump chamber and a low pressure drain. The fuel injector further comprises a valve needle which is engageable with a valve needle seating, a control chamber arranged such that the fuel pressure therein urges the valve needle towards its seating, a control valve arrangement, including a control valve member, for controlling the fuel pressure within the chamber, and an actuator arrangement for controlling movement of the spill valve member and the control valve member. The actuator arrangement comprises a double pole actuator having a first armature which is movable with the spill valve member and a single pole actuator having a second armature which is movable with the control valve member.
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