Two-piece injector cup and method of manufacturing same
View Patent ↗A fuel delivery system comprises a fuel rail having an outlet, and a fuel injector cup associated with the fuel rail outlet. The fuel injector cup includes a cup portion and a ring portion. The cup portion comprises a body, and the body includes a base at a first end, an opening at a second end, and an inner cavity therein between the base and the opening. The cavity of the cup portion is configured to receive a fuel injector, and the first end of the cup portion is configured to be associated with the outlet of the fuel rail. The ring portion of the fuel injector cup is configured to be affixed to the cup portion, and the second end thereof, in particular. The ring portion is further configured to reinforce the second end of said cup portion.
1. A fuel delivery system, comprising:
a fuel rail having an outlet; and
a fuel injector cup configured to be associated with said outlet of said fuel rail, wherein said fuel injector cup includes:
a cup portion having body, said body having a base at a first end, an opening at a second end, and an inner cavity therein between said base and said opening, said cavity configured to receive a fuel injector and said first end configured to be associated with said outlet of said fuel rail; and
a ring portion configured to be affixed to said second end of said cup portion and further configured to reinforce said second end of said cup portion.
2. A fuel delivery system in accordance with claim 1 wherein one of said cup portion and said ring portion includes at least one window therein providing access to said inner cavity in said cup portion.
3. A fuel delivery system in accordance with claim 1 wherein said body of said cup portion further includes at least one notch therein at said second end configured for receiving a portion of a fuel injector retention clip, said notch including a notch opening and wherein said access to said notch through said notch opening is closed by said ring portion when said ring portion is affixed to said cup portion thereby forming a window therein.
4. A fuel delivery system in accordance with claim 1 wherein said ring portion of said fuel injector cup includes at least one notch therein configured for receiving a portion of a fuel injector retention clip, said notch having a notch opening facing said cup portion, wherein access to said notch through said notch opening is closed by said cup portion when said ring portion is affixed to said cup portion thereby forming a window therein.
5. A fuel delivery system in accordance with claim 1 wherein said ring portion comprises an annular ring circumscribing said second end of said cup portion.
6. A fuel delivery system in accordance with claim 1 wherein said body of said cup portion includes an annular flange at said second end thereof, said flange configured to abut said ring portion when said ring portion is affixed to said cup portion.
7. A fuel delivery system in accordance with claim 1 wherein said ring portion comprises a cap configured to be fitted over said second end of said cup portion.
8. A fuel delivery system in accordance with claim 1 wherein said ring further includes a fuel injector orientation feature.
9. A fuel injector cup for use in a fuel delivery system, comprising:
a cup portion having body, said body having a base at a first end, an opening at a second end, and an inner cavity therein between said base and said opening, said cavity configured to receive a fuel injector, and said first end configured to be associated with said outlet of a fuel rail; and
a ring portion configured to be affixed to said second end of said cup portion and further configured to reinforce said second end of said cup portion.
10. A fuel injector cup in accordance with claim 9 wherein said body of said cup portion further includes at least one notch therein at said second end configured for receiving a portion of a fuel injector retention clip, said notch including a notch opening and wherein access to said notch through said notch opening is closed by said ring portion when said ring portion is affixed to said cup portion thereby forming a window therein.
11. A fuel injector cup in accordance with claim 9 wherein said ring portion of said fuel injector cup includes at least one notch therein, said at least one notch configured for receiving a portion of a fuel injector retention clip, said notch having a notch opening facing said cup portion, wherein access to said notch through said notch opening is closed by said cup portion when said ring portion is affixed to said cup portion thereby forming a window therein.
12. A fuel injector cup in accordance with claim 9 wherein said ring portion comprises an annular ring circumscribing said second end of said cup portion.
13. A fuel injector cup in accordance with claim 9 wherein said body of said cup portion includes an annular flange at said second end thereof, said flange configured to abut said ring portion when said ring portion is affixed to said cup portion.
14. A fuel delivery system in accordance with claim 9 wherein said ring portion comprises a cap configured to be fitted over said second end of said cup portion.
15. A fuel injector cup in accordance with claim 9 wherein said ring portion includes a fuel injector orientation feature.
16. A method of manufacturing a fuel injector cup, said method comprising the steps of:
forming a cup portion having body, said body having a base at a first end, an opening at a second end, and an inner cavity therein between said base and said opening, said inner cavity configured to receive a fuel injector, and said first end configured to be associated with an outlet of a fuel rail;
forming a ring portion configured to be affixed to said second end of said cup portion; and
affixing said ring portion to said second end of said cup portion.
17. A method in accordance with claim 16 wherein said forming a cup portion step comprises stamping said cup portion, and said forming a ring portion step comprises stamping said ring portion.
18. A method in accordance with claim 16 wherein said forming a cup portion step includes forming said cup portion to include a notch in said body at said second end thereof.
19. A method in accordance with claim 18 wherein said forming a cup portion step includes the substep of piercing said cup portion to include said notch in said body at said second end thereof.
20. A method in accordance with claim 19 wherein said forming cup step further includes the substep of creating a flange at the second end of said body.
21. A method in accordance with claim 16 wherein said forming a ring portion step includes forming said ring portion to include a notch therein.
22. A method in accordance with claim 21 wherein said forming a ring portion step includes the substep of piercing said ring portion to include said notch therein.
23. A method in accordance with claim 16 wherein said forming a ring portion step comprises forming a ring.
24. A method in accordance with claim 16 wherein said forming a ring portion step comprises forming cap.
25. A method in accordance with claim 16 wherein said affixing step comprises brazing said ring portion to said cup portion.
26. A method in accordance with claim 16 wherein said affixing step comprises welding said ring portion to said cup portion.
27. A method in accordance with claim 16 wherein:
said forming a cup portion step includes forming said cup portion to have a flange disposed at the second end thereof; and
said affixing step includes the substep of abutting said ring portion against said flange before affixing said ring portion to said cup portion.
28. A method in accordance with claim 16 wherein one of said forming a cup portion and forming a ring portion steps includes forming said cup portion or said ring portion to have a window therein providing access to said cavity in said cup portion.