A system for converting fuel and air into reformate with a reformer which has a reaction space, a nozzle for supplying a fuel/air mixture to the reaction space, and a fuel feed for supplying fuel to the nozzle (14). The nozzle is a Venturi nozzle with an air inlet area and a diffusor area which exte
A system for converting fuel and air into reformate with a reformer which has a reaction space, a nozzle for supplying a fuel/air mixture to the reaction space, and a fuel feed for supplying fuel to the nozzle (14). The nozzle is a Venturi nozzle with an air inlet area and a diffusor area which extends downstream with respect to the air inlet area.
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What is claimed is: 1. System for converting fuel and air into reformate comprising: a reformer which has a reaction space, a nozzle for supplying a fuel/air mixture to the reaction space, wherein the nozzle is a Venturi nozzle having a longitudinal axis and which includes an air inlet area and a d
What is claimed is: 1. System for converting fuel and air into reformate comprising: a reformer which has a reaction space, a nozzle for supplying a fuel/air mixture to the reaction space, wherein the nozzle is a Venturi nozzle having a longitudinal axis and which includes an air inlet area and a diffuser area positioned downstream with respect to the air inlet area and flaring outwardly therefrom, and a fuel feed for supplying fuel to the air inlet area of the nozzle, wherein the Venturi nozzle includes an essentially cylindrical part with a hole formed therein that is slanted relative to the longitudinal axis for holding a glow pin in a fixed position relative to the nozzle. 2. System as claimed in claim 1, wherein the Venturi nozzle includes an opening angle in the diffuser area which is variable along a length of the diffuser area. 3. System as claimed in claim 1, wherein the fuel feed includes a fuel needle in the vicinity of the air inlet area for supplying liquid fuel. 4. System as claimed in claim 1, wherein the fuel feed comprises a pipe and a gas-atomizing nozzle for supplying a fuel/air mixture to the Venturi nozzle. 5. System as claimed in claim 4, wherein the gas-atomizing nozzle is another Venturi nozzle. 6. System as claimed in claim 1, further including means for supplying secondary air into the reaction space. 7. System as claimed in claim 1, wherein the fuel feed comprises a fuel needle, and wherein for the ratio of the inside diameter di to the outside diameter da of the fuel needle is according to the following relationship: description="In-line Formulae" end="lead"0.7≦di/da<1. description="In-line Formulae" end="tail" 8. System as claimed in claim 7, wherein the Venturi nozzle is axially symmetrical, and the fuel needle is aligned axially with the Venturi nozzle. 9. System as claimed in claim 7, wherein an exit plane of the liquid fuel extends out of the fuel needle perpendicular to the flow direction of the liquid fuel through the fuel needle. 10. System as claimed in claim 7, wherein an exit plane of the liquid fuel extends out of the fuel needle obliquely to the flow direction of the liquid fuel through the fuel needle. 11. System as claimed in claim 7, wherein an exit opening of the fuel needle includes tips and/or crenelations. 12. System as claimed in claim 3, wherein the air inlet area comprises a second essentially cylindrical part which includes a transition to the diffuser area and an exit opening of the fuel needle is located in the second essentially cylindrical part at an axial distance from the transition to the diffuser area. 13. System as claimed in claim 3, further including installation of the system in a motor vehicle, wherein an exit opening of the fuel needle is located above the axis of the Venturi nozzle. 14. System as claimed in claim 1, wherein the air inlet area includes means for air guidance which imparts a swirl to the in-flowing air. 15. System as claimed in claim 14, wherein the air guidance means comprise an air-guiding device which includes a plurality of swirl blades. 16. System as claimed in claim 15, wherein the swirl blades are located on a carrier mounted on the nozzle and wherein a pair of swirl blades along with the carrier and the nozzle form a conical channel. 17. System as claimed in claim 14, wherein the air guidance means includes a pot-shaped sleeve attached to the nozzle having an end wall and peripheral wall and having axial air holes in an end wall and peripheral air holes in the peripheral wall. 18. System as claimed in claim 17, wherein the peripheral air holes are formed substantially tangentially to the peripheral wall. 19. System as claimed in claim 17, wherein air guide blades are located on the peripheral air holes. 20. System as claimed in claim 14, wherein the nozzle is composed of a ceramic material and the air guidance means is formed as a single piece with the nozzle. 21. System as claimed in claim 1, further including a glow pin, wherein the hole in the nozzle holds the glow pin. 22. System as claimed in claim 14, wherein the air guidance means forms channels which are offset with respect to the radial directions of the nozzle. 23. System as claimed in claim 14, wherein the air guidance means includes essentially triangular base surfaces having rounded corners. 24. System as claimed in claim 1, wherein the hole in the nozzle slanted relative to the axis of the nozzle is located in the diffuser area spaced from the air inlet area. 25. System as claimed in claim 1, wherein the essentially cylindrical part includes a shoulder having an enlarged diameter relative to the essentially cylindrical part and wherein the hole penetrates the shoulder. 26. System as claimed in claim 1, further including mounting pins, wherein the essentially cylindrical part includes a shoulder having an enlarged diameter relative to the essentially cylindrical part, and wherein the shoulder includes a plurality of recesses for holding the mounting pins. 27. System as claimed in claim 1, further including means for holding the nozzle and the fuel feed, at least two axially aligned mounting pins mounted on the reformer, wherein the nozzle and the fuel feed further include a positioning means which interacts with the mounting pins, wherein the means for holding the nozzle and fuel feed interact with the mounting pins, and wherein the reformer, the nozzle and the fuel feed are located in succession on the longitudinal axis. 28. System as claimed in claim 27, wherein the means for holding the nozzle and fuel feed is a spring which is held on the mounting pins by clamp disks. 29. System as claimed in claim 27, wherein the mounting pins are welded to the reformer. 30. System as claimed in claim 1, further including a seal positioned between the nozzle and the reformer. 31. System as claimed in claim 30, wherein the seal has at least one mica layer facing the reformer and at least one graphite layer facing the nozzle. 32. System as claimed in claim 1, wherein the fuel feed comprises a metal mesh. 33. A process for installation of a system for conversion of fuel and air into reformate of claim 27, comprising the steps of: guiding the nozzle in the axial direction onto the mounting pins, guiding the fuel feed in the axial direction onto the mounting pins, and guiding the means for holding the nozzle and fuel feed in the axial direction onto the mounting pins. 34. The process as claimed in claim 33, wherein prior to guiding the nozzle onto the mounting pins a seal is guided in the axial direction onto the mounting pins. 35. The process as claimed in claim 33, wherein the means for holding the nozzle and fuel feed is a spring and further comprising the step of guiding in a force-controlled manner the spring onto the mounting pins via interaction of clamp disks to fix the spring in its assembled position.
Joshi Mahendra L. ; Borders Harley A. ; Marin Ovidiu ; Charon Olivier, Self-cooled oxygen-fuel for use in high-temperature and high-particulate furnaces.
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