Claims
- 1. A silicon dioxide containing soot-producing burner comprising:
- (a) a burner subassembly which comprises:
- a back block having a plurality of gas-carrying passages,
- a face block having a central gas-carrying passage and a plurality of gas-carrying passages surrounding the central gas-carrying passage,
- a manifold plate between the back block and the face block, said manifold plate comprising a plurality of orifices for providing equalization of a pressure of gas flowing through the plurality of gas-carrying passages surrounding the central gas-carrying passage of the face block, and;
- (b) a burner mounting block which comprises a first burner mounting block bolt and a first burner mounting block bolt hole for attachment of said burner mounting block to a gas-supplying manifold; wherein said burner subassembly is mounted on the burner mounting block.
- 2. The silicon dioxide containing soot-producing burner of claim 1 wherein said first burner mounting block bolt engages a corresponding threaded bolt hole in the gas-supplying manifold.
- 3. The silicon dioxide containing soot-producing burner of claim 1 wherein said burner subassembly comprises a first burner subassembly bolt and a first burner subassembly bolt hole wherein said first burner subassembly bolt passes through said first burner subassembly bolt hole and engages a corresponding threaded second bolt hole in the burner mounting block.
- 4. The silicon dioxide containing soot-producing burner of claim 1 wherein said first burner mounting block bolt hole is unthreaded.
- 5. The silicon dioxide containing soot-producing burner of claim 1 wherein the face block comprises a burner face having first, second, third, and fourth gas-emitting regions, the second region surrounding the first region, the third region surrounding the second region, and the fourth region surrounding the third region, the third gas-emitting region comprises an inner gas-emitting subregion and an outer gas-emitting subregion, the outer gas-emitting subregion of the third gas-emitting region surrounds the inner gas-emitting subregion of the third gas-emitting region, wherein each of (i) the inner gas-emitting subregion, (ii) the outer gas-emitting subregion, and (iii) the fourth gas-emitting region comprises a ring of orifices, said rings having diameters D.sub.i, D.sub.o, and D.sub.4, respectively, with D.sub.i <D.sub.o <D.sub.4 with a difference between D.sub.4 and D.sub.o being greater than a difference between D.sub.0 and D.sub.i.
- 6. A silicon dioxide containing soot producing apparatus, for utilization of halide-free, silicon-containing materials, comprising a burner, said burner having a burner face comprised of:
- an oxygen and halide-free, silicon-containing material gas-emitting region comprised of a center orifice;
- an inert gas gas-emitting region, said inert gas gas-emitting region surrounding said oxygen and halide-free, silicon-containing material gas-emitting region and comprised of a second orifice;
- an oxygen gas-emitting region, said oxygen gas-emitting region surrounding said inert gas gas-emitting region, said oxygen gas-emitting region comprised of a plurality of orifices which define an inner ring having a diameter D.sub.i and an outer ring having a diameter D.sub.o ; and
- an oxygen and combustible gas gas-emitting region, said oxygen and combustible gas gas-emitting region surrounding said oxygen gas-emitting region, said oxygen and combustible gas gas-emitting region comprised of a plurality of orifices which define a ring having a diameter D.sub.4, with D.sub.i <D.sub.o <D.sub.4 wherein D.sub.4 -D.sub.o is greater than D.sub.o -D.sub.i, wherein said orifices which define said inner ring and said outer ring of said oxygen gas-emitting region have a diameter greater than a diameter of the orifices which define the ring of diameter D.sub.4 of said oxygen and combustible gas gas-emitting region.
- 7. A silicon containing soot-producing apparatus as claimed in claim 6 wherein said apparatus further comprises an oxygen and halide-free, silicon-containing material delivery system comprised of an O.sub.2 gas source and an octamethylcyclotetrasiloxane (OMCTS) vaporizer, wherein said oxygen and halide-free, silicon-containing material delivery system is connected with said center orifice of said halide-free, silicon-containing material gas-emitting region.
- 8. A silicon dioxide containing soot-producing apparatus as claimed in claim 6 wherein said apparatus further comprises an oxygen and combustible gas delivery system comprised of a premix O.sub.2 gas source and a premix CH.sub.4 gas source, wherein said oxygen and combustible gas delivery system is connected with said orifices of said oxygen and combustible gas-emitting region.
- 9. A silicon dioxide containing soot-producing burner for a gas-supplying manifold comprising:
- (a) a burner subassembly which comprises:
- a back block having a plurality of gas-carrying passages,
- a face block having a central gas-carrying passage and a plurality of gas-carrying passages surrounding the central gas-carrying passage,
- a manifold plate between the back block and the face block, and;
- (b) a burner mounting block which comprises a first burner mounting block bolt and a first burner mounting block bolt hole for attachment of said burner mounting block to said gas-supplying manifold; wherein said first burner mounting block bolt passes through said first burner mounting block bolt hole and engages a corresponding threaded bolt hole in the gas-supplying manifold, said burner subassembly mounted on the burner mounting block, said burner subassembly comprises a first burner subassembly bolt and a first burner subassembly bolt hole wherein said first burner subassembly bolt passes through said first burner subassembly bolt hole and engages a corresponding threaded second burner mounting block bolt hole in the burner mounting block.
Parent Case Info
This is a division of application Ser. No. 08/367,047 filed Dec. 30, 1994 now U.S. Pat. No. 5,599,371.
US Referenced Citations (14)
Foreign Referenced Citations (1)
Number |
Date |
Country |
54-30853 |
Mar 1979 |
JPX |
Non-Patent Literature Citations (1)
Entry |
Technical Hydraulic Handbook (The Lee Company Technical Center) (1989). |
Divisions (1)
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Number |
Date |
Country |
Parent |
367047 |
Dec 1994 |
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