1. A sliding sun visor having:
a pivot rod (2) having
a first end (21) arranged to be articulated to a headliner of a vehicle,
a second end (22) opposite to the first end (21) and
a hollow space (20) extending from the first end (21) to the second end (22);
a un visor structure (1) coupled to the pivot rod (2) in a manner so as to enable the sun visor structure (1) to be placed in a use-position selected from folded position, most pivoted andor extended use-position and intermediate positions thereof, by pivoting around and sliding along said pivot rod (2);
a conductor (3) for supplying power to at least one electrical device included in the
sun visor structure (1), said conductor (3) having:
a first portion defined between the first end (21) of the pivot rod (2) and the second end (22) of the pivot rod (2), said first portion being housed in the hollow space (20) of the pivot rod (2) and
a second portion having at least a length to enable the sun visor structure (1) be positioned in the most extended use-position;
the sun visor structure (1) comprising conductor housing means (4) for housing the
second portion of the conductor, said conductor housing means (4) being parallel to the pivot rod (2);
characterized in that:
the conductor housing means (4) are provided with a longitudinal groove (40)
the conductor (3) comprises continuous conductor cables from the first end to
at least one electrical device;
the conductor (3) is transversally folded.
2. The sliding sun visor of claim 1 further comprising guiding means (5) fixed to the pivot rod (2) for guiding a sliding movement of the sun visor structure (1) along the pivot rod (2), the sliding guiding means (5) being in turn guided in the sliding movement of the sun visor structure (1) by the conductor housing means (4).
3. The sliding sun visor of claim 2, wherein the conductor (3) is a flexible tape
4. The sliding sun visor of claim 3, wherein the flexible tape is a flexible printed circuit.
5. The sliding sun visor of claim 1, wherein the conductor housing means (4) has an essentially U-shaped cross section.
6. The sliding sun visor of claim 5, wherein the sliding guiding means (5) has a protuberance (50) for matching the longitudinal groove (40) of the conductor housing means (4) to prevent relative turning therebetween.
7. The sliding sun visor of claim 1, further comprising a first microswitch (6) for detecting a pivoted sun visor structure (1) use-position.
8. The sliding sun visor of claim 7, wherein the pivot rod (2) comprises a flap (7) for activating the first microswithn (6).
9. The sliding sun visor of claim I further comprising a domotic module (8).
10. The sliding sun visor of any of claim 7 further comprising:
a vanity mirror (9) provided with a cover (91);
a second microswitch (90) for detecting the cover (91) position;
lighting means (92) for lighting the vanity mirror (9) according to the state of the first microswitch (6) and the state of the second microswitch (90).
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A process for producing elemental sulfur by combustion of hydrogen sulfide or a hydrogen-sulfide-containing gas, in particular a Claus process, in which the hydrogen sulfide or the hydrogen-sulfide-containing gas is, via a first device, partially combusted in a burner in a combustion chamber with addition of air and oxidation medium, the oxygen or the oxygen-containing gas being fed to the combustion chamber by at least one second additional device of the combustion chamber, by which means the hydrogen sulfide or the hydrogen-sulfide-containing gas is subjected to afterburning and is then fed to a waste-heat boiler and thereafter to one or more reactors.
2. The process as claimed in claim 1, in which the oxygen-containing gas has a purity of 80% by volume to 100% by volume of oxygen.
3. The process as claimed in claim 1 or 2, in which the oxygen or the oxygen-containing gas is blown in by one or a multiplicity of individual nozzles.
4. The process as claimed in one of claims 1 to 3, in which the intake velocity of the oxygen or the oxygen-containing gas into the combustion chamber is in the range of a Mach number between 0.4 and 2, as a result of which the mixing between the oxygen, the combustion air and the hydrogen-sulfide-containing process gas is increased on account of high turbulence.
5. The process as claimed in one of claims 1 to 4, in which the oxygen or the oxygen-containing gas enters into the combustion chamber at an angle of 45 to 90 measured in the direction of flow.
6. The process as claimed in one of claims 1 to 5, in which, in the case of a process having swirl of the main flame in the combustion chamber, a swirl flow of the oxygen or oxygen-containing gas is produced which is directed against the swirl of the main flame.
7. The process as claimed in one of claims 1 to 6, in which the entry point of the oxygen or the oxygen-containing gas into the combustion chamber is cooled and is protected against sulfur diffusing in.
8. The process as claimed in claim 7, in which, for cooling, in addition, a protecting gas is fed to the combustion chamber in the region of the point of entry of the oxygen or the oxygen-containing gas into the combustion chamber.
9. The process as claimed in claim 8, in which air, nitrogen or carbon dioxide is used as protecting gas.
10. The process as claimed in claim 8 or 9, in which the intake velocity of the protective gas into the combustion chamber is at least Mach number 0.2, as a result of which the turbulent mixture between the oxygen, the combustion air and the hydrogen-sulfide-containing process gas is additionally increased.
11. The process as claimed in one of claims 1 to 10, in which the rate of oxygen fed is controlled in accordance with the stoichiometry of the Claus reaction in such a manner that the oxygen and the combustion air react completely with hydrogen sulfide and the other combustible gases so that no excess oxygen is present downstream of the combustion chamber.
12. The process as claimed in one of claims 1 to 11, in which the rate of oxygen fed is controlled in accordance with the stoichiometry of the Claus reaction in such a manner that the hydrogen sulfidesulfur dioxide ratio corresponds to the theoretical value 2.
13. The process as claimed in one of claims 1 to 12, in which the rate of oxygen fed is controlled in accordance with the stoichiometry of the Clause reaction in such a manner that the maximum temperatures in the burnercombustor are 250 C.1200 C. and the maximum temperature in the combustion chamber is 1500 C., so that the heat transfer to the combustion chamber wall is improved and the maximum temperature in the waste-heat boiler is 670 C.
14. The process as claimed in one of claims 1 to 13, in which the concentration of oxygen in the oxidation medium (equivalent oxygen concentration) is between 21 and 40% by volume.
15. The process as claimed in one of claims 1 to 14, in which the concentration of the hydrogen sulfide in the feed gas is at least 20% by volume.
16. An apparatus for producing elemental sulfur by combustion of hydrogen sulfide or a hydrogen-sulfide-containing gas, in particular a Claus plant, in which the hydrogen sulfide or the hydrogen-sulfide-containing gas is partially combusted in a burner having a combustion chamber, with addition of air, oxygen or an oxygen-containing gas being fed to the combustion chamber via at least one additional nozzle of the combustion chamber, as a result of which the hydrogen sulfide or the hydrogen-sulfide-containing gas is subjected to afterburning and is then fed to a waste-heat boiler and thereafter to one or more reactors.
17. An apparatus as claimed in claim 16, in which the nozzles, in the installed state, are arranged flush or recessed in the refractory brick lining of the combustion chamber.
18. The apparatus as claimed in claim 16 or 17, in which, in the case of a process having a swirled main flame in the combustion chamber the nozzle(s) are installed tangentially at a distance which corresponds to 0.25 times the diameter of the combustion chamber, measured from the center of the combustion chamber, so that a swirl flow of the oxygen or oxygen-containing gas is produced which is directed against the swirl of the main flame.
19. An apparatus as claimed in one of claims 16 to 18, in which, in the case of a process having a swirled main flame in the combustion chamber, the nozzle(s) are installed tangentially at a distance corresponding to 0.25 times the diameter of the combustion chamber, measured from the center of the combustion chamber, so that a swirl flow of the oxygen or oxygen-containing gas is produced, which is directed against the swirl of the main flame.
20. The apparatus as claimed in one of claims 16 to 19, in which the oxygen or the oxygen-containing gas is blown in via at least one or a multiplicity of nozzles which are installed symmetrically in the combustion chamber wall in the transition area to the combustor.
21. The apparatus as claimed in one of claims 16 to 20, in which a ring-gap nozzle is arranged around the nozzles for blowing in the oxygen or the oxygen-containing gas, through which ring-gap nozzle a protective gas is additionally blown in.