Actuator arrangement and fuel injector incorporating an actuator arrangement
AssigneeDelphi Technologies, Inc.
InventorAnthony Harcombe
Life of this patent
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Abstract
An actuator arrangement for use in a fuel injector of an internal combustion engine includes an inner core (30) comprising a plurality of laminates (30a) and a first outer pole (32) for receiving at least a part of the inner core (30), wherein the inner core (30) and the outer pole (32) together define a first volume (46) for receiving a first electromagnetic winding. An injector is provided in which the actuator arrangement controls a valve arrangement, either a spill valve or a nozzle control valve, or both, so as to control injection by the injector.
Claims24
An actuator arrangement for use in a fuel injector of an internal combustion engine, the actuator arrangement including:
- an inner core (30) comprising a plurality of laminates (30a),
- a first outer pole (32) for receiving at least a part of the inner core (30),
- the inner core (30) and the first outer pole (32) together defining a first volume (46) for receiving a first electromagnetic winding.
A fuel injector for use in an internal combustion engine, the fuel injector including:
- a valve needle (10) which is operable so as to control injection by the injector,
- a valve arrangement for controlling movement of the valve needle (10), and
- an actuator arrangement for controlling the valve arrangement, wherein the actuator arrangement includes an inner core (30) comprising a plurality of laminates (30a) and a first outer pole (32) for receiving at least a part of the inner core (30), wherein the inner core (30) and the first outer pole (32) together define a first volume (46) for receiving a first electromagnetic winding and whereby the valve arrangement is controlled by energisation and/or de-energisation of the first electromagnetic winding.
A fuel injector for use in an internal combustion engine, the fuel injector including:
- a valve needle (10) which is movable towards and away from a seating so as to control injection by the injector,
- a spill valve arrangement (24) for controlling fuel pressure in an injector delivery passage (11),
- a nozzle control valve arrangement (18) for controlling fuel pressure in an injector control chamber (22) so as to control movement of the valve needle (10), and
- an actuator arrangement for controlling both the spill valve arrangement and the nozzle control valve arrangement, wherein the actuator arrangement includes an inner core (30) comprising a plurality of laminates (30a) and a first outer pole (32) for receiving at least a part of the inner core (30), the inner core (30) including an upper core region (38) wound with a first electromagnetic winding and a lower core region (42) wound with a second electromagnetic winding, wherein the inner core (30) and the first outer pole (32) together define a first volume (46) within which the first electromagnetic winding is housed.
Dependencies are inferred from the claim text.