Solenoid-based fuel injector
OwnerAndrew Dames, Hilary Meanwell +3inventors
InventorsAndrew Dames, Hilary Meanwell, Robert Davidson, Christian Wehrenfennig, James Evett
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Abstract
A solenoid-based fuel injector is described. The fuel injector comprises a tubular body (48) comprising a magnetic material and an armature (16) disposed inside the tubular body. The tubular body has an integrally-formed, inwardly-projecting shelf (52) configured to provide a pole piece.
Claims18
A solenoid-based fuel injector comprising:
- a tubular body comprising a magnetic material;
- an armature disposed inside the tubular body;
- valve sealing element;
- and
- a rod or needle arranged to couple the armature to the valve sealing element;
- wherein the needle or rod is compliant.
2-34. (canceled)
A method of operating a solenoid-based fuel injector, the method comprising:
- using a single-polarity driver which allow up to twice a static opening force to be achieved.
A method of operating a solenoid-based fuel injector, the method comprising:
- using a dual-polarity driver which allows up to four times a static opening force to be achieved.
A method of operating a solenoid-based fuel injector, the method comprising:
- using a dual-polarity driver which drives the needle in to compression in a first direction and then in a second, opposite direction.
Dependencies are inferred from the claim text.