A multiplex injector system comprising an injector head, a first fuel path located in the injector head, and a first set of injector tips located in the injector head and in fluid communication with the first fuel path. The first set of injector tips includes at least one first injector tip. The mul
A multiplex injector system comprising an injector head, a first fuel path located in the injector head, and a first set of injector tips located in the injector head and in fluid communication with the first fuel path. The first set of injector tips includes at least one first injector tip. The multiplex injector further includes a second fuel path located in the injector head and a second set of injector tips located in the injector head and in fluid communication with the second fuel path. The second set of injector tips includes at least one second injector tip. A flow of fuel in each of the first and second fuel paths can be selectively controlled to control the flow of fuel through the first and second sets of injector tips.
대표청구항▼
1. A multiplex injector system comprising:an injector head;a first fuel path located in said injector head;a first set of injector tips in fluid communication with said first fuel path, said first set of injector tips being directly or indirectly rigidly coupled to said injector head and including a
1. A multiplex injector system comprising:an injector head;a first fuel path located in said injector head;a first set of injector tips in fluid communication with said first fuel path, said first set of injector tips being directly or indirectly rigidly coupled to said injector head and including at least one first injector tip;a second fuel path located in said injector head; anda second set of injector tips being directly or indirectly rigidly coupled to said injector head and in fluid communication with said second fuel path, said second set of injector tips including at least two second injector tips, wherein a flow of fuel in each of said first and second fuel paths can be selectively controlled to control the flow of fuel through said first and second sets of injector tips. 2. The multiplex injector system of claim 1 wherein said first and second set of injector tips are simplex airblast atomizer tips. 3. The multiplex injector system of claim 2 wherein each injector tip includes a swirl cavity such that fuel exiting said injector tip has a rotational velocity component. 4. The multiplex injector system of claim 1 wherein said first set of injector tips includes a centrally located injector tip, and wherein said second set of injector tips includes a plurality of injector tips located about said centrally located injector tip. 5. The multiplex injector system of claim 4 wherein said first set of injector tips further includes a plurality of injector tips located about said centrally located injector tip. 6. The multiplex injector system of claim 1 further comprising a distributor plate located inside said injector head, said distributor plate being in fluid communication with said first and second fuel paths and including a plurality of internal channels to couple said first fuel path to said first set of injector tips and said second fuel path to said second set of injector tips. 7. The multiplex injector system of claim 6 wherein said distributor plate includes a rear surface, a front surface, a first fluid delivery line including a groove on said rear surface and a plurality of through holes, said first fluid delivery line being in fluid communication with said first fuel path, and a second fluid delivery line including a through hole and a groove on said front surface, said second fluid delivery line being in fluid communication with said second fuel path. 8. The multiplex injector system of claim 1 further comprising a faceplate coupled to said injector head, said faceplate includes a plurality of openings, each opening receiving one of said injector tips therein, and wherein said multiplex injector includes a plurality of openings located adjacent to said faceplate to enable surrounding fluids to enter into said injector head. 9. The multiplex injector system of claim 1 wherein said at least one of said fuel paths is defined at least partially by a fuel tube, and wherein said injector head includes a throat portion that is generally spaced apart from said fuel tube to define an insulating gap between said throat potion and said fuel tube. 10. The multiplex injector system of claim 1 wherein said second fuel path is defined at least partially by a second fuel tube, and wherein said first fuel path is defined at least partially by a first fuel tube generally located inside and generally coaxial with said second fuel tube. 11. The multiplex injector system of claim 10 further comprising a rear plate located adjacent to an end of each fuel tube and including two orifices therein, each orifice being in fluid communication with one of said fuel tubes, and a distributor plate located adjacent to said rear plate having two fluid delivery lines formed therein, each fluid delivery line being in fluid communication with one of said orifices of said rear plate. 12. The multiplex injector system of claim 11 further comprising a front plate located adjacent to said distributor plate and including a plurality of openings, each opening being in fluid communication with one of said fluid delivery lines of said distributor plate. 13. The multiplex injector system of claim 12 further comprising a plurality of fuel cylinders, each fuel cylinder being in fluid communication with one of said openings of said front plate at one end and with an injector tip at another end such that each fuel cylinder can deliver fuel from said front plate to one of said injector tips. 14. The multiplex injector system of claim 10 wherein said injector head includes a central opening defining an inner wall and wherein said injector system further includes a seal retainer coupled to at least one of said first and second fuel tubes, said seal retainer being located in said central opening and sealingly yet displaceably engaging said inner wall of said injector head. 15. The multiplex injector system of claim 14 wherein said seal retainer includes at least one groove formed therein and receiving an O-ring therein, said O-ring engaging said inner wall to form a seal therewith. 16. The multiplex injector system of claim 10 further comprising a first input port coupled to said injector head and in fluid communication with said first fuel tube and a second input port coupled to said injector head and in fluid communication with said second fuel tube. 17. The multiplex injector system of claim 10 wherein said injector head includes a throat portion that receives said second fuel tube therein and that is generally spaced apart from said second file tube to define an annular insulating gap between said throat portion and said second fuel tube. 18. The multiplex injector system of claim 1 wherein said injector head includes an annular insulating gap located adjacent an outer surface of said injector head to thermally insulate the inner components of said injector bead. 19. The multiplex injector system of claim 1 wherein each injector tip is removably coupled to said injector head. 20. The multiplex injector system of claim 19 wherein each injector tip is threadedly coupled to said injector head. 21. The multiplex injector system of claim 19 wherein at least part of each injector tip is generally spaced away from at least part of said injector head to form an annular insulating gap therebetween. 22. The multiplex injector system of claim 21 wherein said injector head includes a plurality of tube adapters located therein, and wherein each injector tip is threadedly coupled to an associated tube adapter, and wherein said injector includes a plurality of generally cylindrical metal seals, each seal being located between an inner end of each injector tip and the associated tube adapter. 23. The multiplex injector system of claim 1 wherein each injector tip includes a discharge orifice and is shaped such that when fuel is introduced into said injector tip in the presence of pressurized surrounding fluid said fuel exits said discharge orifice in a spray. 24. The multiplex injector system of claim 1 further comprising an engine having a combustion chamber, and wherein said each injector tip is shaped and located to inject fuel into said combustion chamber in a spray form. 25. The multiplex injector system of claim 1 wherein at least one injector tip of said set of first and second injector tips is shaped to inject fuel having a rotational velocity component in a first direction, and wherein another injector tip of said set of first and second injector tips is shaped to inject fuel having a rotational velocity component in a second direction opposite to said first direction. 26. The multiplex injector of claim 1 wherein each injector tip includes a set of vanes located thereon to guide fluid flowing over the injector tip. 27. The multiplex injector of claim 1 further comprising a face plate located in a lower end of said injector bead, said face plate including a plurality of openings formed therein, and wherein each injector tip is located in one of said openings. 28. The multiplex injector of claim 1 wherein said first and second sets of injector tips each include a plurality of injector tips. 29. The injector system of claim 1 wherein the flow of fuel through said first and second fuel paths can be independently controlled. 30. The injector system of claim 29 wherein fuel can be allowed to flow through said first fuel path to said first set of injector tips and simultaneously blocked from flowing through said second fuel path to said second set of injector tips, and wherein fuel can be allowed to flow through said second fuel path to said second set of injector tips and simultaneously blocked from flowing through said first fuel path to said first set of injector tips. 31. The injector system of claim 1 wherein said injector head includes an end opening which generally closely receives said first and second set of injector tips therein. 32. The injector system of claim 1 wherein said injector head is shaped to be coupled to a combustion chamber. 33. The injector system of claim 1 further including a combustion chamber, and wherein said injector head is coupled to said combustion chamber and said injector head is located such that said first and second set of injector tips can spray fuel into said combustion chamber. 34. The injector system of claim 1 wherein said first and second sets of tips are rigidly coupled said injector head. 35. The injector system of claim 1 wherein said first and second sets of injector tips are arranged to spray fuel into a common combustion zone. 36. A multiplex injector comprising:an injector head;a first fuel path located in said injector head;a first set of injector tips located in said injector head and in fluid communication with said first fuel path, said first set of injector tips including a plurality of injector tips;a second fuel path located in said injector head; anda second set of injector tips located in said injector head and in fluid communication with said second fuel path, said second set of injector tips including a plurality of injector tips, wherein the flow of fuel in said first and second fuel paths can be selectively controlled to control the flow of fuel through said first and second sets of injector tips. 37. The injector system of claim 36 wherein the flow of fuel through said first and second fuel paths can be independently controlled. 38. The injector system of claim 36 wherein fuel can be allowed to flow through said first fuel path to said first set of injector tips and simultaneously blocked from flowing through said second fuel path to said second set of injector tips, and wherein fuel can be allowed to flow through said first fuel path to said first set of injector tips and simultaneously blocked from flowing through said second fuel path to said second set of injector tips. 39. The injector system of claim 36 wherein said injector head includes an end opening which generally closely receives said first and second set of injector tips therein. 40. The injector system of claim 36 wherein said injector head is shaped to be coupled to a combustion chamber. 41. The injector system of claim 36 further including a combustion chamber, and wherein said injector head is coupled to said combustion chamber and said injector head is located such that said first and second set of injector tips can spray fuel into said combustion chamber. 42. A method for injecting fuel into a combustion chamber comprising the steps of:providing a multiplex injector including an injector head, a first fuel path located in said injector head, a first set of injector tips being directly or indirectly rigidly coupled to said injector head and in fluid communication with said first fuel path, a second fuel path located in said injector head, and a second set of injector tips being directly or indirectly rigidly coupled to said injector head and in fluid communication with said second fuel path, said first set of injector tips including at least one tip and said second set of injector ti ps including at least two tips; andselectively causing fuel to flow through said first and second fuel paths such that said fuel is corresponding selectively injected through said first and second set of injector tips into said combustion chamber. 43. The method of claim 42 wherein the causing step includes selectively causing fuel to flow through said first and second feel paths such that the flow of fuel through said first and second fuel path is independently controlled. 44. The method of claim 42 wherein the causing stop includes causing fuel to flow through said first fuel path to said first set of injector tips and simultaneously blocking flow through said second fuel path to said second set of injector tips, and subsequently causing fuel to flow through said second fuel path to said second set of injector tips and simultaneously blocking flow through said first fuel path to said first set of injector tips. 45. The method of claim 42 wherein said injector head includes an end opening which generally closely receives saint first and second set of injector tips therein. 46. The method of claim 42 wherein said injector head is shaped to be coupled to a combustion chamber. 47. The method of claim 42 further comprising the step of, after said providing step and before said causing step, coupling said injector head to a combustion chamber such that said first and second set of injector tips can spray fuel into said combustion chamber. 48. A multiplex injector system comprising:an injector head;a first fuel path located in said injector head and defined at least partially by a first fuel tube;a first set of injector tips located in said injector head and in fluid communication with said first fuel path, said first set of injector tips including at least one first injector tip;a second fuel path located in said injector head and defined at least partially by a second fuel tube, wherein said first fuel tube is generally located inside and generally coaxial with said second fuel tube; anda second set of injector tips located in said injector head and in fluid communication with said second fuel path, said second set of injector tips including at least one second injector tip, wherein a flow of fuel in each of said first and second fuel paths can be selectively controlled to control the flow of fuel through said first and second sets of injector tips. 49. A multiplex injector system comprising:in injector head;a first fuel path located in said injector head;a first set of injector tips located in said injector head and in fluid communication with said first fuel path, said first set of injector tips including at least one first injector tip;a second fuel path located in said injector head; anda second set of injector tips located in said injector head and in fluid communication with said second fuel path, said second set of injector tips including at least one second injector tip, wherein a flow of fuel in each of said first and second fuel paths can be selectively controlled to control the flow of fuel through said first and second sets of injector tips, wherein said first and second sets of injector tips each include a plurality of injector tips. 50. A multiplex injector system comprising:an injector head;a first fuel path located in said injector head;a first set of injector tips being directly or indirectly rigidly coupled to said injector head and in fluid communication with said first fuel path, said first set of injector tips including at least one first injector tip;a second fuel path located in said injector head; anda second set of injector tips being directly or indirectly rigidly coupled to said injector head and in fluid communication with said second fuel path, said second set of injector tips including at least two second injector tips, wherein a flow of fuel in each of said first and second fuel paths can be selectively and independently controlled to control the flow of fuel through said first and second sets of in jector tips. 51. A multiplex injector system comprising:an injector head;a sheath coupled to said injector head;a first fuel path located in said injector head;a first set of injector tips located in said sheath and in fluid communication with said first fuel path, said first set of injector tips including at least one first injector tip;a second fuel path located in said injector head; anda second set of injector tips located in said sheath and in fluid communication with said second fuel path, said second set of injector tips including at least one second injector tip, wherein a flow of fuel in each of said first and second fuel paths can be selectively controlled to control the flow of fuel through said first and second sets of injector tips. 52. The injector system of claim 51 wherein one of said first and second sets of injector tips includes only a single injector tip, and the other one of said first and second sets of injector tips includes a plurality of injector tips. 53. The injector system of claim 51 wherein both of said first and second sets of injector tips include only a single injector tip.
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