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31.发明授权公开(公告)号：US06553767B2
公开(公告)日：2003-04-29
申请号：US09878836
申请日：2001-06-11
IPC分类号： F02C314
CPC分类号： F23R3/06 , F23R3/50 , Y02T50/675 , Y10T29/49346
摘要： An annular gas turbine engine combustor liner has a single piece annular shell circumscribed about a first axis of revolution. The shell has a hot side and a cold side, an annular dilution hole section, and a plurality of asymmetrical cylindrical dilution holes extending through the section. Pockets are circumferentially interdigitated between the dilution holes and extend into the shell from the cold side such that the pockets form dilution hole bosses between the pockets through which the dilution holes extend. Each of the dilution holes is circumscribed about a second axis of revolution which is not parallel to the first axis of revolution. The liner may further include forward and aft annular cooling nuggets located forward and aft of the dilution hole section and having annular film cooling slots which are open in the axially aftwardly direction. The shell is machined from a single piece integrally formed near net shape form such as a forging, a casting, or more particularly a spin or centrifugal casting. The invention includes a method for making the annular gas turbine engine combustor liner by forming a single piece integrally formed near net shape form and machining it to produce the shell and the above features in the shell.
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32.发明授权Article with metallic surface layer for heat transfer augmentation and method for making 有权用于传热增强的金属表面层及其制造方法公开(公告)号：US06254997B1
公开(公告)日：2001-07-03
申请号：US09213399
申请日：1998-12-16
申请人： Mark G. Rettig , Gilbert Farmer , Thomas J. Tomlinson , Robert G. Zimmerman, Jr. , Bhupendra K. Gupta
发明人： Mark G. Rettig , Gilbert Farmer , Thomas J. Tomlinson , Robert G. Zimmerman, Jr. , Bhupendra K. Gupta
IPC分类号： B32B1816
CPC分类号： F28F13/185 , C23C4/073 , C23C4/131 , C23C30/00 , F23M5/00 , F23M2900/05004 , Y10S428/937 , Y10T428/12063 , Y10T428/12472 , Y10T428/12583 , Y10T428/12931 , Y10T428/12944 , Y10T428/26
摘要： An article comprising a substrate and an outer metallic layer, such as a coating, is provided with augmented heat transfer from the substrate through the combination of a layer thickness of about 0.003″ to about 0.017″, a layer surface roughness of at least about 500 micro inches Ra, a layer tensile bond strength of at least about 5 ksi, and a heat transfer augmentation of at least about 1.1. A method of making the article uses an electric arc wire thermal spray process in which the atomizing gas pressure is maintained within the range of about 20-80 psi.
摘要翻译： 包括基材和外部金属层（例如涂层）的制品具有从基底通过约0.003“至约0.017”的层厚度的组合的增强的热传递，至少 约500微英寸的Ra，层的拉伸粘合强度为至少约5ksi，并且传热增强为至少约1.1。 制造该制品的方法使用电弧线热喷涂方法，其中雾化气体压力保持在约20-80psi的范围内。
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33.发明授权One-piece sheet metal cowl for combustor of a gas turbine engine and method of configuring same 有权一种用于燃气涡轮发动机的燃烧器的片材金属罩及其构造方法
公开(公告)号：US6148600A
公开(公告)日：2000-11-21
申请号：US259038
申请日：1999-02-26
CPC分类号： F23R3/002 , F23R2900/00005
摘要： A one-piece cowl for use in assembled relationship with a combustor of a gas turbine engine, the cowl being of a generally annular configuration defining a central cowl axis and being axially elongated and aerodynamically contoured relative to the central cowl axis. The one-piece cowl includes an inner annular portion, an outer annular portion, and a plurality of circumferentially spaced radial ligaments connecting the inner and outer annular portions so as to form a corresponding number of openings through a middle portion of the cowl. Each radial ligament has a designated area which enables the radial ligaments to sustain the stress levels imposed on the cowl to prevent high cycle fatigue. Each opening also has a designated area which enables insertion of fuel nozzles therein without adversely affecting air flow therethrough. The designated area for the radial ligaments is a function of the designated area for the openings and a ratio of such areas falls within a specified range.
摘要翻译： 用于与燃气涡轮发动机的燃烧器组装关系的一体式整流罩，该整流罩具有限定中央整流罩轴线并且相对于中央整流罩轴线轴向伸长并且具有空气动力学轮廓的大致环形构造。 一体式整流罩包括内部环形部分，外部环形部分和连接内部和外部环形部分的多个周向间隔开的径向韧带，以便通过整流罩的中间部分形成相应数量的开口。 每个径向韧带具有指定的区域，其使得径向韧带能够维持施加在罩上的应力水平以防止高循环疲劳。 每个开口还具有能够将燃料喷嘴插入其中的指定区域，而不会不利地影响通过其中的空气流动。 径向韧带的指定区域是开口的指定区域的函数，并且这些区域的比率落在指定范围内。
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34.发明授权
公开(公告)号：US5681616A
公开(公告)日：1997-10-28
申请号：US568719
申请日：1995-12-07
申请人： Bhupendra K. Gupta , Gilbert Farmer , Alan Walker
发明人： Bhupendra K. Gupta , Gilbert Farmer , Alan Walker
CPC分类号： C23C14/5873 , C23C14/58 , C23C4/02 , C23C4/18 , Y02T50/67 , Y10T29/49318 , Y10T29/49336 , Y10T428/12007 , Y10T428/12618 , Y10T428/12993 , Y10T428/24355 , Y10T428/24479 , Y10T428/2457
摘要： A thermal barrier coating is provided which is adapted to be formed on an article subjected to a hostile thermal environment while subjected to thermally, mechanically and/or dynamically-induced stresses, such as a component of a gas turbine engine. The thermal barrier coating is composed of a bond layer that tenaciously adheres an insulative ceramic layer to the article. The bond layer is formed of a metallic oxidation-resistant material, and has an average surface roughness R.sub.a of at least about 7.5 micrometers, while the ceramic layer is characterized by being segmented by at least two sets of grooves. The grooves have substantially uniform widths of about 100 to about 500 micrometers, with adjacent grooves of each set being spaced about 10 to about 250 millimeters apart. The grooves promote the resistance of the thermal barrier coating to spalling, and are selectively located in the ceramic layer in order to tailor the stress relaxation capability of the thermal barrier coating to the size, geometry and service environment of the article. A preferred method for forming the grooves involves a liquid jet technique by which a portion of the ceramic layer is abraded by a high pressure liquid stream.
摘要翻译： 提供了一种热障涂层，其适于形成在经受敌对热环境的制品上，同时受到热，机械和/或动态诱导的应力，例如燃气涡轮发动机的部件。 隔热涂层由将绝缘陶瓷层强力粘合到制品上的粘合层组成。 接合层由金属抗氧化材料形成，并且其平均表面粗糙度Ra为至少约7.5微米，而陶瓷层的特征在于由至少两组凹槽分段。 凹槽具有约100至约500微米的基本上均匀的宽度，每组的相邻凹槽间隔约10至约250毫米。 这些凹槽促进了热障涂层的剥落阻力，并且选择性地位于陶瓷层中，以便根据制品的尺寸，几何形状和使用环境来调整热障涂层的应力松弛能力。 用于形成槽的优选方法包括液体喷射技术，通过该技术，陶瓷层的一部分被高压液体流磨蚀。
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35.发明授权
公开(公告)号：US5558922A
公开(公告)日：1996-09-24
申请号：US365635
申请日：1994-12-28
申请人： Bhupendra K. Gupta , Gilbert Farmer , Alan Walker
发明人： Bhupendra K. Gupta , Gilbert Farmer , Alan Walker
CPC分类号： C23C14/5873 , C23C14/58 , C23C4/02 , C23C4/18 , Y02T50/67 , Y10T29/49318 , Y10T29/49336 , Y10T428/12007 , Y10T428/12618 , Y10T428/12993 , Y10T428/24355 , Y10T428/24479 , Y10T428/2457
摘要： A thermal barrier coating is provided which is adapted to be formed on an article subjected to a hostile thermal environment while subjected to thermally, mechanically and/or dynamically-induced stresses, such as a component of a gas turbine engine. The thermal barrier coating is composed of a bond layer that tenaciously adheres an insulative ceramic layer to the article. The bond layer is formed of a metallic oxidation-resistant material, and has an average surface roughness R.sub.a of at least about 7.5 micrometers, while the ceramic layer is characterized by being segmented by at least two sets of grooves. The grooves have substantially uniform widths of about 100 to about 500 micrometers, with adjacent grooves of each set being spaced about 10 to about 250 millimeters apart. The grooves promote the resistance of the thermal barrier coating to spalling, and are selectively located in the ceramic layer in order to tailor the stress relaxation capability of the thermal barrier coating to the size, geometry and service environment of the article. A preferred method for forming the grooves involves a liquid jet technique by which a portion of the ceramic layer is abraded by a high pressure liquid stream.
摘要翻译： 提供了一种热障涂层，其适于形成在经受敌对热环境的制品上，同时受到热，机械和/或动态诱导的应力，例如燃气涡轮发动机的部件。 隔热涂层由将绝缘陶瓷层强力粘合到制品上的粘合层组成。 接合层由金属抗氧化材料形成，并且其平均表面粗糙度Ra为至少约7.5微米，而陶瓷层的特征在于由至少两组凹槽分段。 凹槽具有约100至约500微米的基本上均匀的宽度，每组的相邻凹槽间隔约10至约250毫米。 这些凹槽促进了热障涂层的剥落阻力，并且选择性地位于陶瓷层中，以便根据制品的尺寸，几何形状和使用环境来调整热障涂层的应力松弛能力。 用于形成槽的优选方法包括液体喷射技术，通过该技术，陶瓷层的一部分被高压液体流磨蚀。
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