A swirl pressure nozzle with a nozzle body is proposed, in which an inner area is provided, which has a tapered section with a largest diameter and a smallest diameter. The nozzle has an inlet which leads into the section in an essentially tangential manner, which has a diameter, such that a fluid m
A swirl pressure nozzle with a nozzle body is proposed, in which an inner area is provided, which has a tapered section with a largest diameter and a smallest diameter. The nozzle has an inlet which leads into the section in an essentially tangential manner, which has a diameter, such that a fluid medium can be guided under pressure through this inlet in an essentially tangential manner into the tapered section of the inner area. The section has an axial length and at its end with the smallest diameter leads into an outlet of the nozzle, which has the same diameter as well as a length. The different parameters are in a ratio to each other, that lies in the following ranges: Dp/Do in the range from 0.42 to 1.56; Ds/Do in the range from 3 to 8; the angle of opening (alpha) of the tapered section greater than 60째; Lo/Do in the range from 0.2 to 1.5.
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What is claimed is: 1. Swirl pressure nozzle with a nozzle body (10), in which an inner area (100) is provided which has a tapered section (102) with a largest diameter (Ds) and a smallest diameter (Do), the nozzle having an inlet (104) joining in an essentially tangential manner in the tapered sec
What is claimed is: 1. Swirl pressure nozzle with a nozzle body (10), in which an inner area (100) is provided which has a tapered section (102) with a largest diameter (Ds) and a smallest diameter (Do), the nozzle having an inlet (104) joining in an essentially tangential manner in the tapered section (102) of the inner area (100), the inlet being provided in the end region of the tapered section (102) of the inner area (100) which has the largest diameter (Ds), so that in operation a fluid medium is able to be supplied under pressure through this inlet ( 104) in an essentially tangential manner into the end region with the largest diameter (Ds) in the tapered section (102) of the inner area (100), in which the tapered section (102) of the inner area (100) has an axial length (Ls) and at its end with the smallest diameter (Do) leads into an outlet (103) of the nozzle, which has the same diameter (Do) as well as a length (Lo) characterised in that the inlet has a diameter (D p) and that the different parameters are in a ratio to each other, that lies in the following ranges: diameter of the inlet to the diameter of the outlet (D p/Do) in the range from 0.42 to 1.56; largest diameter of the tapered section (102) to the smallest diameter of the tapered section (Ds/Do) in the range from 3 to 8; length of the tapered section (102) to the largest diameter of the tapered section (Ls/Ds) such that the angle of the opening (α) of the tapered section (102) is greater than 60째, length of the outlet (103) to the diameter of the outlet (Lo/Do) in the range from 0.2 to 1.5. 2. Nozzle according to claim 1, characterised in that the ratio of the length of the tapered section (102) to the diameter (Dp) of the inlet (104) lies in the range from 1 to 4, preferably 1 to 2. 3. Nozzle according to claim 1 or 2, characterised in that the nozzle body (10) comprises a supply channel (105) leading into the inlet (104), which has the same diameter (D p) as the inlet (104). 4. Nozzle according to claim 3, characterised in that the supply channel (105) leading into the inlet (104) has a length (Lp), which is as short as possible, in which the ratio of the length (Lp) to diameter (Dp) lies in particular in the range from 1 to 10. 5. Nozzle according to any one of the preceding claims, characterised in that the nozzle body (10) is produced from a ceramic material, in particular from an oxide ceramic or a non-oxide ceramic, or from a hard metal, or from a material processable in sinter processes. 6. Nozzle according to any one of the preceding claims, characterised in that at least two inlets (104) which are joined in an essentially tangential manner in the tapered section (102) of the inner area (100) are provided, which are distributed in regular intervals on the circumference of that end region of the tapered section (102) with the largest diameter. 7. Nozzle arrangement (2, 2a, 2 b) with a nozzle casing (20, 20a, 20 b), in which a nozzle, a filter (21, 21a, 21b) as well as a valve (23, 23a, 23b) are arranged, and the nozzle casing (20, 20 a, 20b) being provided with a seal ring (22, 22a, 22b), in order to be able to tightly connect with a connecting pipe (3), characterised in that the nozzle is formed according to any one of the preceding claims. 8. Nozzle arrangement (2, 2a, 2 b) according to claim 7, characterised in that the seal ring ( 22, 22a, 22b) surrounds the nozzle casing (20, 20a, 20b), and that the nozzle casing (20, 20a, 20b) is provided with an external thread at the end opposite to the outlet (103) of the nozzle, in order that the external thread is able to be screwed into a corresponding inner thread of a connecting pipe (3). 9. Nozzle arrangement (2a) according to claim 7 or 8, characterised in that the valve (23a) comprises a valve casing (230a), in which the filter (21a) projects into, as well as a spring restoring element (233a) and a valve body (232a), in which the valve casing ( 230a) defines a valve seat(231a) for the valve body (232a) and the restoring element (233a) is arranged between the valve casing (230a) and the nozzle, so that the end of the restoring element (233a) which is at the nozzle side supports itself on the nozzle, or more specifically on a cover of the nozzle (11a), and that the other end of the restoring element (233a) presses the valve body (232 a) in the direction of the valve seat (231a), that furthermore between the nozzle and the nozzle casing (20a) a seal ring (24a) is arranged, and that finally at the end of the nozzle casing (20a) which is at the entry side, a screw (25a) is provided, which fixs the filter (21 a), the valve (23a) and the nozzle is the nozzle casing (20a). 10. Nozzle arrangement (2b) according to claim 7 or 8, characterised in that the valve (23b) comprises a valve panel (230b), a spring restoring element (233 b) and a valve body (232b), in which the valve panel (230b) defines a valve seat (231b) for the valve body (232b) and the restoring element (233 b) is arranged between the valve panel (230b) and the filter (21b), this filter being connected after the valve panel (230b), so that the end of the restoring element ( 233b) which is at the nozzle side supports itself on the filter (21b) and the other end of the restoring element ( 233b) presses the valve body (232b) in the direction of the valve seat (231b), and in which the valve (23b) and the filter (21b) are fixed in the nozzle casing (20b) with the help of a screw (25 b), and that furthermore a seal ring (24b) is arranged between the nozzle and the nozzle casing (20b), at which the nozzle lies fixed with the help of a straining screw (12b ).
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이 특허에 인용된 특허 (4)
Tilton Charles L. ; Tilton Donald E. ; Smetana Bruce A., Liquid fuel injection device with pressure-swirl atomizers.
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