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US 11,572,858 B2Granted
Pole piece retention and insertion method
AssigneeDelphi Automotive Systems Luxembourg SA
InventorsArnaud Leblay, Cas Breedijk
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Abstract
A fuel injector includes an injector body which accommodates a pole piece of a solenoid actuator. A top portion of the injector body includes a cylindrically formed generally open-ended recessed portion. The recessed portions accommodates a generally cylindrical pole piece, wherein the pole piece includes a bore located along a central axis to provide a fuel flow path. The top portion of the pole piece includes a cylindrically formed recess so as to form a sleeve or lip portion.
Claims6
A fuel injector comprising:
- an upper housing;
- and
- an injector body which accommodates a cylindrical pole piece, where a top portion of said injector body includes a cylindrically formed open-ended recessed portion, said recessed portion accommodating the cylindrical pole piece, wherein said cylindrical pole piece includes a bore located along a central axis which provides a fuel flow path and a top portion of said cylindrical pole piece includes a cylindrically formed recess so as to form a sleeve including a lip portion;
- wherein a weld is formed at a junction of a distal end of the upper housing, an upper end of the injector body, and a distal portion of said sleeve.
1 more element
Dependencies are inferred from the claim text.