Solenoid Actuator
AssigneeSentec Ltd
InventorsAndrew DAMES, James EVETT, Matthew STORKEY
Life of this patent
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Abstract
A solenoid actuator is described. The solenoid actuator comprises an armature, pole piece(s), electromagnet coil(s) arranged, in response to energisation, to cause travel of the armature between first and second positions along a direction of travel, permanent magnet(s) positioned and orientated for latching the armature in at least the first position when the armature is in the first position and spring(s) arranged to bias the armature. The solenoid actuator can be operated to provide partial lift.
Claims19
1-87. (canceled)
A fuel injector comprising a solenoid actuator comprising:
- an armature, pole piece(s), electromagnet coil(s) arranged, in response to energization, to cause travel of the armature between first and second positions along a direction of travel, and spring(s) arranged to bias the armature, wherein in the first position the fuel injector is closed and wherein quasi-static position of the armature is at least monotonic with the coil current over all or some of length of travel of the armature.
A device for controlling fluid flow comprising a solenoid actuator comprising an armature, pole piece(s), electromagnet coil(s) arranged, in response to energisation, to cause travel of the armature between first and second positions along a direction of travel, and spring(s) arranged to bias the armature, wherein in the first position the device is closed and wherein quasi-static position of the armature is at least monotonic with the coil current over all or some of length of travel of the armature.
Dependencies are inferred from the claim text.