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1. 发明授权

US07814767B2 Method and induction furnace for drawing large diameter preforms to optical fibres 有权
标题翻译：用于将大直径预成型件拉伸到光纤的方法和感应炉
公开(公告)号：US07814767B2
公开(公告)日：2010-10-19
申请号：US09986622
申请日：2001-11-09
申请人： Giacomo Stefano Roba , Massimo Nutini , Franco Veronelli
发明人： Giacomo Stefano Roba , Massimo Nutini , Franco Veronelli
IPC分类号： C03B37/023 , C03B37/07
CPC分类号： H05B6/20 , C03B37/0124 , C03B37/029 , C03B2205/64 , C03B2205/70 , C03B2205/80 , C03B2205/81 , C03B2205/82 , C03B2205/92 , C03B2205/96 , C03B2205/98 , Y02P40/57
摘要： An induction furnace capable of drawing large diameter preforms of up to 130 mm is described. The induction furnace has top and bottom chimneys surrounding the entire preform during operation of the furnace with an inert conditioning gas which is introduced into the top chimney and flows downward through the furnace body and bottom chimney without significant turbulence. A distributor ring inside the top chimney redirects flow from a circumferential direction to a downward direction. The top chimney also includes a resilient seal to releasably hold the top of the preform. The bottom chimney has a smoothly decreasing cross-sectional area preventing turbulence at the furnace exit. The furnace insulation is preferably a rigid self-supporting graphite cylinder. A method of drawing large diameter preforms either to an optical fiber or to a preform of smaller diameter using such a furnace is also described.
摘要翻译：描述了能够拉伸高达130mm的大直径预制件的感应炉。感应炉在炉子运行期间具有围绕整个预制件的顶部和底部烟囱，其中惰性调节气体被引入到顶部烟囱中并且向下流过炉体和底部烟囱而没有显着的湍流。顶部烟囱内的分配器环将流动从圆周方向重新定向到向下的方向。顶部烟囱还包括弹性密封件以可释放地保持预制件的顶部。底部烟囱具有平滑减小的横截面积，防止炉出口处的湍流。炉绝缘体优选为刚性自支撑石墨圆筒。还描述了使用这种炉将大直径预成型件拉到光纤或更小直径的预成型件的方法。

2. 发明授权

US07461524B2 Device and method for manufacturing a preform for optical fibres by chemical vapour deposition 有权
标题翻译：通过化学气相沉积制造光纤预制棒的装置和方法
公开(公告)号：US07461524B2
公开(公告)日：2008-12-09
申请号：US10481748
申请日：2002-06-19
申请人： Giacomo Stefano Roba , Massimo Nutini , Marco Ruzzier , Franco Veronelli
发明人： Giacomo Stefano Roba , Massimo Nutini , Marco Ruzzier , Franco Veronelli
IPC分类号： C03B37/018
CPC分类号： C03B37/0144 , C03B37/01202 , C03B37/01406 , C03B37/0142 , C03B37/01486 , C03B2207/62 , C03B2207/66 , Y02P40/57
摘要： A method and device for manufacturing a preform for optical fibres through chemical deposition on a substrate for deposition arranged vertically. A chemical deposition chamber includes at least one gripping member rotatably mounted about an axis Z-Z and adapted to hold at least one end of at least one elongated substrate for chemical deposition for the formation of a preform. The chamber includes at least one burner which is mobile along a direction Z substantially parallel to the axis Z-Z and adapted to deposit on the elongated substrate, a chemical substance for the formation of a preform and at least one suction element for collecting exhaust chemical substances. The suction element is arranged on the opposite side of the burner with respect to the axis Z-Z and is mobile along the direction Z and is positioned at a lower height than the burner.
摘要翻译：一种用于通过化学沉积制造用于光纤的预制件的方法和装置，用于垂直布置的用于沉积的基板。化学沉积室包括至少一个夹持构件，该夹持构件围绕轴线Z-Z可旋转地安装，并且适于保持用于化学沉积的至少一个细长衬底的至少一端以形成预成型件。所述腔室包括至少一个燃烧器，所述燃烧器沿着基本上平行于轴线Z-Z的方向Z移动，并且适于沉积在细长衬底上，用于形成预成型件的化学物质和用于收集排气化学物质的至少一个吸入元件。抽吸元件相对于轴线Z-Z布置在燃烧器的相对侧上，并且沿着Z方向移动，并且位于比燃烧器低的高度处。

3. 发明申请

US20090071195A1 DEVICE AND METHOD FOR MANUFACTURING A PREFORM FOR OPTICAL FIBRES BY CHEMICAL VAPOUR DEPOSITION 有权
标题翻译：通过化学蒸气沉积制造光纤纤维的预制件的装置和方法
公开(公告)号：US20090071195A1
公开(公告)日：2009-03-19
申请号：US12267910
申请日：2008-11-10
申请人： Giacomo Stefano Roba , Massimo Nutini , Marco Ruzzier , Franco Veronelli
发明人： Giacomo Stefano Roba , Massimo Nutini , Marco Ruzzier , Franco Veronelli
IPC分类号： C03B37/018
CPC分类号： C03B37/0144 , C03B37/01202 , C03B37/01406 , C03B37/0142 , C03B37/01486 , C03B2207/62 , C03B2207/66 , Y02P40/57
摘要： A method and device for manufacturing a preform for optical fibres through chemical deposition on a substrate for deposition arranged vertically is described, comprising a chemical deposition chamber including at least one gripping member rotatably mounted about an axis Z-Z and adapted to hold at least one end of at least one elongated element constituting a substrate for chemical deposition for the formation of a preform for optical fibres. The chamber includes, moreover, at least one burner which is mobile along a direction Z substantially parallel to said axis Z-Z and adapted to deposit, on said at least one elongated element, a chemical substance for the formation of a preform and at least one suction element for collecting exhaust chemical substances, said at least one suction element being arranged on the opposite side to said at least one burner with respect to said axis Z-Z and being mobile along said direction Z. Said at least one suction element is advantageously positioned at a different height (preferably lower) with respect to that of said at least one burner to optimise the fluid dynamic conditions inside the chemical deposition chamber.
摘要翻译：描述了一种用于通过化学沉积制造用于光纤的预成型件的方法和装置，所述方法和装置用于垂直布置的用于沉积的基板上，包括化学沉积室，其包括至少一个夹持构件，所述夹持构件围绕轴线ZZ可旋转地安装，并且适于保持至少一个细长元件构成用于形成用于光纤的预成型体的用于化学沉积的基底。此外，所述腔室还包括至少一个燃烧器，所述燃烧器沿着基本上平行于所述轴线ZZ的方向Z移动并且适于在所述至少一个细长元件上沉积用于形成预成型件的化学物质，并且至少一个吸力所述至少一个抽吸元件相对于所述轴线ZZ布置在所述至少一个燃烧器的相对侧上，并且沿着所述方向Z可移动。所述至少一个吸入元件有利地位于相对于所述至少一个燃烧器的高度（优选地较低），以优化化学沉积室内的流体动力学条件。

4. 发明授权

US08387416B2 Device and method for manufacturing a preform for optical fibres by chemical vapour deposition 有权
标题翻译：通过化学气相沉积制造光纤预制棒的装置和方法
公开(公告)号：US08387416B2
公开(公告)日：2013-03-05
申请号：US12267910
申请日：2008-11-10
申请人： Giacomo Stefano Roba , Massimo Nutini , Marco Ruzzier , Franco Veronelli
发明人： Giacomo Stefano Roba , Massimo Nutini , Marco Ruzzier , Franco Veronelli
IPC分类号： C03B37/018
CPC分类号： C03B37/0144 , C03B37/01202 , C03B37/01406 , C03B37/0142 , C03B37/01486 , C03B2207/62 , C03B2207/66 , Y02P40/57
摘要： A method and device for manufacturing a preform for optical fibers through chemical deposition on a substrate for deposition arranged vertically is described, comprising a chemical deposition chamber including at least one gripping member rotatably mounted about an axis Z-Z and adapted to hold at least one end of at least one elongated element constituting a substrate for chemical deposition for the formation of a preform for optical fibers. The chamber includes, moreover, at least one burner which is mobile along a direction Z substantially parallel to said axis Z-Z and adapted to deposit, on said at least one elongated element, a chemical substance for the formation of a preform and at least one suction element for collecting exhaust chemical substances, said at least one suction element being arranged on the opposite side to said at least one burner with respect to said axis Z-Z and being mobile along said direction Z. Said at least one suction element is advantageously positioned at a different height (preferably lower) with respect to that of said at least one burner to optimise the fluid dynamic conditions inside the chemical deposition chamber.
摘要翻译：描述了一种用于通过化学沉积制造用于光纤的预成型件的方法和装置，所述方法和装置用于垂直布置的用于沉积的基板上，包括化学沉积室，其包括至少一个夹持构件，所述夹持构件围绕轴线ZZ可旋转地安装，并且适于保持至少一个细长元件构成用于形成用于光纤的预成型体的用于化学沉积的基底。此外，所述腔室还包括至少一个燃烧器，所述燃烧器沿着基本上平行于所述轴线ZZ的方向Z移动并且适于在所述至少一个细长元件上沉积用于形成预成型件的化学物质，并且至少一个吸力所述至少一个抽吸元件相对于所述轴线ZZ布置在所述至少一个燃烧器的相对侧上，并且沿着所述方向Z可移动。所述至少一个吸入元件有利地位于相对于所述至少一个燃烧器的高度（优选地较低），以优化化学沉积室内的流体动力学条件。

5. 发明申请

US20090325111A1 METHOD AND BURNER FOR MANUFACTURING A GLASS OPTICAL FIBRE PREFORM BY VAPOUR DEPOSITION 审中-公开
标题翻译：用于通过蒸气沉积制造玻璃光纤预制件的方法和燃烧器
公开(公告)号：US20090325111A1
公开(公告)日：2009-12-31
申请号：US12503578
申请日：2009-07-15
申请人： Giacomo Stefano Roba , Franco Veronelli , Massimo Nutini
发明人： Giacomo Stefano Roba , Franco Veronelli , Massimo Nutini
IPC分类号： F23D14/32
CPC分类号： F23L7/00 , C03B19/1423 , C03B37/0142 , C03B2207/06 , C03B2207/20 , C03B2207/42 , C03B2207/87 , F23D14/24 , F23D14/32 , F23L2900/07002
摘要： A method is disclosed for feeding a flow of gas to a burner for manufacturing an optical fibre preform, said burner comprising: a plurality of coaxial tubes, each two adjacent coaxial tubes defining an annular channel between themselves; an annular gas distribution chamber at one extremity of said annular channels and in fluid communication therewith, said annular distribution chamber being delimited in the radial direction by an inner and an outer surface; said method comprising introducing the flow of gas into the distribution chamber so that the direction of its radially outermost portion is tangential to the radially outer surface of the distribution chamber. The method allows obtaining a better gas velocity distribution in said annular channels. A burner for performing said method is also disclosed.
摘要翻译：公开了一种用于将气流供应到用于制造光纤预制件的燃烧器的方法，所述燃烧器包括：多个同轴管，每个两个相邻的同轴管在它们之间限定环形通道; 环形气体分配室，位于所述环形通道的一个末端并与其流体连通，所述环形分配室通过内表面和外表面沿径向界定; 所述方法包括将气流引入分配室，使得其径向最外部分的方向与分配室的径向外表面相切。该方法允许在所述环形通道中获得更好的气体速度分布。还公开了一种用于执行所述方法的燃烧器。

6. 发明授权

US07587914B2 Burner for manufacturing a glass optical fibre preform by vapour deposition 失效
标题翻译：用于通过气相沉积制造玻璃光纤预制件的燃烧器
公开(公告)号：US07587914B2
公开(公告)日：2009-09-15
申请号：US10478835
申请日：2002-05-27
申请人： Giacomo Stefano Roba , Franco Veronelli , Massimo Nutini
发明人： Giacomo Stefano Roba , Franco Veronelli , Massimo Nutini
IPC分类号： C03B37/018
CPC分类号： F23L7/00 , C03B19/1423 , C03B37/0142 , C03B2207/06 , C03B2207/20 , C03B2207/42 , C03B2207/87 , F23D14/24 , F23D14/32 , F23L2900/07002
摘要： A method for feeding a flow of gas to a burner for manufacturing an optical fiber preform. The burner has a plurality of coaxial tubes, each two adjacent coaxial tubes defining an annular channel between themselves; an annular gas distribution chamber at one extremity of the annular channels and in fluid communication therewith, the annular distribution chamber being delimited in the radial direction by an inner and an outer surface. The flow of gas is introduced into the distribution chamber so that the direction of its radially outermost portion is tangential to the radially outer surface of the distribution chamber. The method allows obtaining a better gas velocity distribution in the annular channels.
摘要翻译：一种用于将气体流供给到用于制造光纤预制件的燃烧器的方法。燃烧器具有多个同轴管，每个两个相邻的同轴管在它们之间限定环形通道; 环形气体分配室，位于环形通道的一个末端并与其流体连通，环形分配室通过内表面和外表面在径向上限定。气体流被引入分配室，使得其径向最外部分的方向与分配室的径向外表面相切。该方法允许在环形通道中获得更好的气体速度分布。

7. 发明授权

US07299659B2 Method for manufacturing optical fiber preforms 失效
标题翻译：制造光纤预制棒的方法
公开(公告)号：US07299659B2
公开(公告)日：2007-11-27
申请号：US10451076
申请日：2001-11-30
申请人： Giacomo Stefano Roba , Massimo Nutini
发明人： Giacomo Stefano Roba , Massimo Nutini
IPC分类号： C03B37/018 , F23D11/00
CPC分类号： C03B37/0142 , C03B2207/06 , C03B2207/08 , C03B2207/16 , C03B2207/20 , C03B2207/24 , C03B2207/40 , C03B2207/42 , F23D14/22 , F23D14/32 , F23D14/583
摘要： Method and burner for increasing the deposition rate of porous glass deposit in the manufacture of optical preforms, by modifying the cross-sectional shape of the flow of glass particles impacting onto a target preform. In particular, the cross-section of the flow of glass particles is modified by increasing the dimension of the flow from a circular cross-section to one having a major and minor axis in a direction substantially perpendicular to the longitudinal axis of the target preform.
摘要翻译：方法和燃烧器，用于通过改变撞击到目标预制件上的玻璃颗粒的流动的横截面形状来增加多孔玻璃沉积物在制造光学预型件中的沉积速率。特别地，玻璃颗粒流动的横截面通过将流体从圆形横截面增大到具有基本上垂直于目标预制件的纵向轴线的方向的长轴和短轴的尺寸而被修改。

8. 发明授权

US07441416B2 Method for manufacturing optical fibre preforms 失效
标题翻译：制造光纤预制棒的方法
公开(公告)号：US07441416B2
公开(公告)日：2008-10-28
申请号：US10450918
申请日：2001-11-30
申请人： Giacomo Stefano Roba , Massimo Nutini
发明人： Giacomo Stefano Roba , Massimo Nutini
IPC分类号： C03B37/018
CPC分类号： F23D14/32 , C03B37/0142 , C03B2207/08 , C03B2207/16 , C03B2207/24 , C03B2207/40 , F23D14/22 , F23D14/583
摘要： Multi-flame burner wherein each flame is separated with respect to the neighboring flame by at least one separating tube made of a heat resistant material, for example, quartz glass or ceramic material. The burner also has a plurality of co-axial pipes, preferably made of a metallic material. The cross section of the upper end of the separating tube can be modified in order to increase the deposition rate of the burner. Methods for manufacturing optical fibre preforms by vapour deposition using the multi-flame deposition burners.
摘要翻译：多火焰燃烧器，其中每个火焰通过由耐热材料例如石英玻璃或陶瓷材料制成的至少一个分离管相对于相邻火焰分开。燃烧器还具有多个同轴管，优选由金属材料制成。可以改变分离管的上端的横截面以增加燃烧器的沉积速率。使用多火焰沉积燃烧器通过气相沉积制造光纤预制棒的方法。

9. 发明申请

US20050223750A1 Burner assembly for producing glass preforms and corresponding production process 审中-公开
标题翻译：用于生产玻璃预制件的燃烧器组件和相应的生产工艺
公开(公告)号：US20050223750A1
公开(公告)日：2005-10-13
申请号：US10513172
申请日：2002-05-03
申请人： Massimo Nutini , John Hayes
发明人： Massimo Nutini , John Hayes
IPC分类号： C03B8/04 , C03B37/014 , C03B37/018
CPC分类号： C03B37/0142 , C03B2207/06 , C03B2207/08 , C03B2207/20 , C03B2207/22 , C03B2207/24 , C03B2207/42 , Y02P40/57
摘要： A process for producing an optical fibre glass preform. A burner is provided in the direction of a deposition target. The burner generates a first flame, a second flame surrounding the first flame and a third flame surrounding the first flame. The first flame is generated by feeding a substantial amount of a combustible gas together with a glass precursor material to a central duct of the burner.
摘要翻译：一种制造光纤玻璃预制件的方法。沿沉积靶的方向设置燃烧器。燃烧器产生第一火焰，围绕第一火焰的第二火焰和围绕第一火焰的第三火焰。通过将大量的可燃气体与玻璃前体材料一起供给到燃烧器的中心管道来产生第一火焰。

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