专利名称：第2级涡轮喷嘴翼面的制作方法
背景技术：
本发明涉及燃气轮机级的涡轮喷嘴，尤其涉及第2级涡轮喷嘴的翼面轮廓。
近年来，先进的燃气轮机趋向于提高燃烧温度并努力改进涡轮各个零部件的冷却条件。在受让人的一个特定的燃气轮机设计中，一种采用空气冷却的高输出涡轮正在开发之中。人们都认识到设计和制造涡轮的叶片和喷嘴要求最佳的空气动力学效率和空气动力及机械负荷。
发明概述按照本发明的一个实施例，为一个涡轮级，最好为第2级涡轮提供一种独特的涡轮喷嘴翼面轮廓，它可以由一些点的独特的轨迹所限定，以按照负荷需求达到所需的效率，因此而能够改进涡轮的性能。要知道由下面表1的X、Y、Z坐标值给出的各义轮廓限定了这些点的独特的轨迹。表1中以英寸为单位给出的坐标是相对于冷态的，即相对于喷嘴叶片的每个断面的室温下的轮廓。每一个所确定的断面与相邻的断面平滑连接的以形成完整的翼面形状。还要知道，随着在使用中喷嘴温度升高，喷嘴叶片轮廓将由于应力和温度的影响而发生改变。这样，冷态的或室温下的轮廓由X，Y，Z坐标给出以便加工制造。因为一个加工出来的喷嘴翼面轮廓可能与从下表给出的名义翼面轮廓有所不同，在沿名义轮廓的垂直于任何表面的方向上距各义轮廓±0.100英寸的距离，它包含了任何涂层工艺，限定了这种设计的轮廓包络面。这种设计的偏差是很小的，不会损害机械和空气动力学性能。
还应知道该翼面是可按几何比例放大或缩小的，以应用于其他类似的涡轮设计。因此，以下所给出的名义翼面轮廓的X，Y，Z坐标是同一常数或数字的函数。也就是说，在表中所给出的X，Y，Z坐标可以被同一常数或数字相乘或相除，以得出按比例放大或按比例缩小的喷嘴翼面轮廓模型，而同时又保持翼面断面形状。
在本发明的一个优选实施例中，提供一种涡轮喷嘴，其喷嘴叶片的翼面形状为在沿垂直于任何翼面表面位置方向的±0.100英寸内的包络面，而该翼面的不含涂层的名义轮廓，实际上符合表1中给定的以英寸为单位的X，Y，Z笛卡儿坐标值，而X，Y，Z值以该翼面的径向最内端的气动力学断面为始点，并且Z坐标值相对于那个断面计算，各个Z距离处的轮廓互相平滑地连接以形成完整的翼面形状。
在按照本发明的另一个优选实施例中，提供一种涡轮喷嘴，喷嘴叶片的翼面形状为实际上符合表1中所给定的X，Y，Z笛卡儿坐标值的不含涂层的名义翼面轮廓，而X、Y、Z值以该翼面的径向最内端的气动力学断面为始点，并且Z坐标值相对于那个断面计算，各个距离Z处的轮廓互相平滑地连接以形成完整的翼面形状。
在按照本发明的另一个优选实施例中，提供一种包括一个具有若干叶片的涡轮喷嘴的涡轮，每个所述叶片的翼面形状为在沿垂直于任何喷嘴翼面表面位置方向的在±0.100英寸内的包络面，而该翼面的不含涂层的名义轮廓，实际上符合表1中规定的以英寸为单位的X，Y，Z笛卡儿坐标值，而X、Y、Z值以该翼面的径向最内端的气动力学断面为始点，并且Z坐标值相对于该断面计算，各个Z距离处的轮廓互相平滑地连接以形成完整的翼面形状。
在按照本发明的另一个优选实施例中，提供一种包括一个具有若干叶片的涡轮喷嘴的涡轮，每个所述叶片为具有实际上符合表1中给定的以英寸为单位的X，Y，Z笛卡儿坐标值的不含涂层的叶片名义轮廓的翼面形状，而X，Y，Z值该翼面的径向最内端的气动力学断面为始点，并且Z坐标值相对于该断面计算，各个Z距离处的轮廓线相平滑地连接以形成完整的翼面形状。
附图简要说明
图1表示一个具有采用了所述翼面或叶片轮廓的第2级喷嘴的涡轮；图2是喷嘴叶片的透视图；图3是图2所示喷嘴叶片的端视图；图4是类似于图1中涡轮的透视图；图5是图4中喷嘴叶片的透视图，表明了沿该叶片长度的各种翼面的轮廓；以及图6是类似于图3的视图，表明了沿叶片的各个Z坐标位置处的轮廓断面。
本发明的详细说明现在参看图1，它显示了涡轮的一部分，总的以10表示，该涡轮具有一个第2级喷嘴，总的以12表示。喷嘴12包括若干叶片14，它们具有沿圆周上间隔排列的翼面形状或轮廓。所示涡轮10包括三个级，一个第1级16，具有若干沿圆周间隔的喷嘴叶片18及叶片20，这些叶片20围绕一个可以旋转的涡轮叶轮22沿圆周间隔排列；第2级喷嘴12，包括若干沿圆周间隔排列的喷嘴叶片14以及若干安装在一个第2级叶轮26上的沿圆周间隔排列的叶片24，以及一个第3级28，它安装了喷嘴叶片30和若干安装在一个第3级叶轮上的沿圆周间隔排列的叶片32。要知道这些喷嘴叶片是处于涡轮的热的燃气流道之中，这些燃气按箭头36的方向流经该涡轮。如所显示的那样，第2级12的喷嘴叶片14暴露在内、外环38和40之间，这样，这些喷嘴就构成一个围绕该转子轴线的环。
参看图2，喷嘴叶片14分别具有前缘42和后缘44，钩子46和48用以把喷嘴叶片部分固定到不旋转的涡轮壳体上。正如将要知道的那样，这些喷嘴叶片具有许多通道，以便使冷却介质流过这些叶片。在该优选的和图示的特定涡轮第2级喷嘴的实施例中，有60个喷嘴叶片，组成了该第2级。
现在参看图2，它显示了第2级的一个喷嘴叶片14，它具有由X、Y、Z笛卡儿坐标系所确定的翼面轮廓。这些坐标值在表1中以英寸为单位给出。该笛卡儿坐标系具有正交的X，Y，Z轴，其X，Y，Z值以该翼面的径向最内端的气动力学断面50为始点，并且其Z轴相对于那个断面计算。在Z轴方向上所选定的位置处确定了X和Y坐标值以后，翼面14的轮廓就可以确定下来。把X，和Y值用平滑的、连续的弧线连接起来以后，在每个距离Z处的每个轮廓断面就可以确定下来。在各个距离Z处之间的各个表面位置处的表面轮廓互相平滑地连接以形成该翼面。表1中给出表列的数值以英寸为单位，代表了在环境温度下，非运转条件下，或非热状态下的以及不含涂层的翼面轮廓。符号习惯规定对于Z坐标值是正值，而对于X，Y坐标值则是正值和负值，如同笛卡儿坐标系中所通常使用的那样。
表1中的数值在小数点后有4位数，以确定该翼面的轮廓。在小数点后少于4位数的情况下，要在右端加零，以使其成为4位数。另外，通常存在着制造加工公差以及表面涂层，在计算该翼面的精确轮廓时，这2点是必须考虑的。相应地，表1中给出的轮廓值是翼面的名义值。还应该知道，通常的制造加工公差，即正，负值以及表面涂层厚度要加到表1中所给出的X和Y上。相应地，在沿着翼面轮廓垂直于任何表面位置的距离±0.100英寸确定了这个特定的喷嘴叶片设计和涡轮的翼面轮廓的包络面。在一个优选实施例中，表1中给出的喷嘴叶片轮廓是相对于该第2级涡轮。具有这种轮廓的60个喷嘴叶片以相等的间隔距离围绕该转子轴线排列，并因而包括了第2级。
表1中所确定的以英寸为单位的坐标值提供了该优选的名义轮廓包络面。
表1X坐标Y坐标Z坐标0.0096 -1.334 13.55120.5594 -1.493912.42580.9047 -1.594211.32720.0541 -1.343212.49220.1887 -1.382211.4214-0.0733-1.421713.5621-0.0691-1.378312.5084-0.0565-1.357311.45360.1447 -1.553313.53350.0095 -1.490712.4981-0.0617-1.444711.45430.9513 -1.607913.42740.2123 -1.583811.41830.201 -1.389 13.5261-0.0565-1.358213.55990.2943 -1.415412.46070.5449 -1.488211.3745-0.0312-1.338612.50340.0512 -1.341 11.4394-0.0314-1.472613.5566-0.0729-1.419712.5089-0.0686-1.377611.45520.1367 -1.549312.48140.0056 -1.488311.44540.574 -1.499513.4770.0571 -1.345513.5450.7283 -1.543112.4036-0.0696-1.379113.56170.1153 -1.361712.48420.2859 -1.411211.4086-0.0744-1.397213.5623-0.0691-1.378312.5084-0.0321-1.338211.45040.0718 -1.519913.5431-0.0337-1.470212.5038-0.0725-1.417811.45570.129 -1.545211.42920.3027 -1.419513.5127-0.0302-1.339113.55650.4152 -1.451512.4448
X坐标Y坐标Z坐标0.7098 -1.536811.35290.0076 -1.332512.49830.111 -1.358911.4316-0.0603-1.449613.5604-0.0738-1.396 12.509-0.0686-1.377611.45520.2332 -1.594113.52180.066 -1.516712.4907-0.036 -1.467811.45090.7469 -1.549213.45430.1196 -1.364413.53680.9279 -1.601212.3774-0.0696-1.379113.56170.1948 -1.385612.47370.4041 -1.446511.393-0.0565-1.357812.50680.0056 -1.331 11.44540.0134 -1.493213.5507-0.061 -1.447212.5074-0.0731-1.394711.45580.2226 -1.588912.47010.0605 -1.513511.43820.4265 -1.456413.49648.6367 -5.181512.41722.771 -2.882 13.18822.1294 -2.530412.21941.5553 -2.236111.24176.6906 -3.698412.6734.2524 -3.933612.99358.7328 -5.467 11.35143.5559 -3.415312.03198.9307 -6.212410.27222.8732 -2.977211.06854.4628 -2.709812.96585.5365 -5.271612.82476.9618 -3.866111.58424.9181 -4.590611.85287.5766 -4.329910.45024.2723 -4.000210.88462.444 -2.040913.23124.7975 -2.833911.86875.9341 -6.073111.71935.5578 -3.144810.71565.4333 -5.302310.73192.7532 -2.139612.13740.4443 -1.692 12.4409
X坐标Y坐标Z坐标3.4482 -2.361710.99299.3299 -6.474312.3261.9286 -2.413213.2991.1582 -1.668212.34711.3627 -2.133512.32021.6693 -1.819311.22670.8995 -1.909211.32797.9247 -4.503 12.51083.3645 -3.262 13.11022.6819 -2.844912.14682.0588 -2.503 11.17555.8109 -3.261312.78864.8021 -4.433312.92128.112 -4.732511.4334.1275 -3.853711.95688.5338 -5.360610.32443.4463 -3.355610.99313.6139 -2.410913.07745.9368 -5.898812.77216.1189 -3.405611.6955.3828 -5.142311.79176.8079 -3.790810.55124.7777 -4.483410.81811.7532 -1.838313.3220.3386 -1.642813.5083.9403 -2.523211.98144.689 -2.791110.82985.7718 -5.915610.68741.1765 -2.038613.39782.0333 -1.923512.2320.7479 -1.835212.4012.6875 -2.123711.09290.4272 -1.683911.398.9331 -5.575312.37822.4827 -2.713713.22611.8649 -2.389312.25421.1296 -1.660411.29771.3167 -2.114911.27317.1166 -3.943412.6173.964 -3.699713.03148.9669 -5.888311.32063.2599 -3.210312.07082.5948 -2.808 11.10514.9062 -2.879 12.90755.3063 -4.979412.8557.3648 -4.128 11.5312
X坐标Y坐标Z坐标4.6652 -4.333611.88614.0048 -3.775310.91972.8195 -2.155513.18195.2433 -3.011811.81015.7747 -5.748611.74025.9836 -3.342110.65965.2314 -5.016110.75851.1872 -1.675713.39640.6073 -1.768113.47273.135 -2.258412.08720.3248 -1.636312.45663.8492 -2.493410.94021.6645 -2.278313.33371.4193 -1.744112.31281.1368 -2.022312.34991.984 -1.912411.18540.7214 -1.823311.35138.2966 -4.825312.46193.0652 -3.064513.14962.4019 -2.682 12.18361.8027 -2.365311.20926.2547 -3.471812.73034.5321 -4.178 12.95678.4432 -5.081911.38943.8454 -3.629611.99388.7648 -5.771110.2943.1574 -3.159311.03114.0318 -2.554213.02255.748 -5.577812.79696.5455 -3.626411.63890.775 -1.847113.45065.1581 -4.859911.82137.2012 -4.047410.49954.5305 -4.236 10.85062.0831 -1.934213.27874.3627 -2.672 11.92585.1258 -2.961910.77245.6145 -5.602210.70817.929 -4.641210.40390.9647 -1.937213.42572.3859 -2.028112.18570.5854 -1.758212.42243.0609 -2.238811.04380.3113 -1.629811.40539.1701 -6.007612.3472.2017 -2.557713.2631
X坐标Y坐标Z坐标1.6092 -2.257212.28781.3844 -1.735511.26421.0981 -2.006211.30187.5296 -4.210312.56273.6678 -3.476 13.07049.13 -6.342211.29912.9681 -3.020712.10922.323 -2.650311.14085.3609 -3.064312.84785.0608 -4.700212.88727.75 -4.415711.48064.4011 -4.088111.92088.2512 -4.984 10.36153.729 -3.560710.9563.2097 -2.278313.13066.0981 -6.234612.75095.6843 -3.201711.75215.5896 -5.438411.76466.4009 -3.556710.60475.0121 -4.743310.78731.4545 -1.752513.36130.4618 -1.700113.49183.5308 -2.385912.03524.263 -2.636 10.88585.9015 -6.241510.67041.4098 -2.152113.36721.711 -1.829 12.27440.9317 -1.923212.37692.3285 -2.015111.14010.564 -1.748311.3729.1287 -7.681 11.29938.6888 -8.271610.3046.0142 -9.013110.65566.3137 -6.934212.72258.9625 -8.614112.37436.2514 -8.538712.73076.2292 -7.72 11.68056.062 -6.888 10.64938.6253 -8.771711.36556.0632 -9.061211.70238.0604 -9.130210.38666.0484 -8.347210.65119.208 -6.802111.28898.9664 -7.520910.26756.0667 -9.335810.64876.3713 -7.614712.715
X坐标Y坐标Z坐标6.1555 -6.748111.69029.2903 -7.842712.33126.1639 -8.307711.68916.1064 -7.506410.64348.9978 -8.078511.31658.4965 -8.595910.32936.0124 -8.814110.65589.0176 -6.66 10.26086.1437 -9.075312.74496.1209 -8.582 11.69476.2262 -6.584612.7348.7531 -8.948712.40196.3076 -8.245512.72336.2344 -7.406311.67985.9979 -6.566710.65779.3985 -6.946512.3178.4037 -9.067411.39466.0848 -8.832911.69957.8417 -9.332310.41536.0752 -8.079210.64759.2039 -7.252811.28948.8493 -7.912810.28296.0326 -9.187710.65326.361 -7.279112.71636.0633 -6.410811.70239.1455 -8.245612.35036.1924 -8.818612.73856.203 -8.020711.68396.0967 -7.202210.64478.8261 -8.442211.33916.0612 -9.266311.70268.2812 -8.885710.35766.0253 -8.592 10.65419.0268 -7.100310.25968.5253 -9.250312.43186.3507 -7.937512.71776.2116 -7.081211.68289.3806 -7.407212.31946.1137 -9.309712.74888.1785 -9.318211.42426.097 -7.799 10.64476.2988 -10.0799 12.72456.1196 -9.598 11.69496.6862 -10.3088 12.67366.5595 -10.2754 12.69026.3995 -9.979111.6581
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X坐标Y坐标Z坐标1.1797 -2.055 1.81062.0817 -1.99082.74522.3713 -2.09372.70711.9885 -2.50131.70430.2237 -1.58022.98952.8576 -2.29091.59010.8686 -1.58722.90470.8503 -1.88392.90711.4695 -1.78931.77250.5333 -1.72791.89561.2137 -2.07062.85930.3009 -1.40922.97931.8233 -2.40752.77920.516 -1.47641.89791.3718 -2.15661.78542.3713 -2.09372.70712.4287 -2.77131.64645.4102 -3.43591.25453.1671 -3.30462.60252.9821 -2.32092.62680.0238 -1.48653.01573.8106 -2.67481.4648-0.0518-1.44231.97250.2153 -1.57441.93744.1362 -2.81481.4221.5349 -1.804 2.81711.8029 -1.89432.78192.2715 -2.07141.66711.0676 -1.65092.87856.0097 -3.81481.17570.5403 -1.48372.94780.6928 -1.53152.92781.0216 -1.63971.83140.8252 -1.873 1.85723.3834 -3.481 2.57412.2608 -2.67152.72173.3029 -2.446 2.58475.631 -3.53212.27865.9455 -3.72572.23732.8776 -3.07821.58743.974 -2.722 2.49654.3123 -2.86952.452-0.066 -1.42273.02754.7806 -3.11011.33732.6715 -2.20372.66770.1448 -1.543 2.9998
X坐标Y坐标Z坐标3.1656 -2.41111.54960.0207 -1.48231.9631.0676 -1.65092.87851.2898 -1.723 2.84930.6923 -1.80532.92791.7263 -1.87751.73880.4112 -1.66841.91161.7766 -2.37921.73224.6479 -3.02292.40793.5101 -3.59361.50430.2864 -1.404 1.92810.3009 -1.40922.97930.4112 -1.44362.96481.6135 -2.28792.80680.6622 -1.523 1.87874.6479 -3.02292.40792.7184 -2.97342.66152.2061 -2.63171.6757-0.0712-1.4 3.02825.3086 -3.35212.3215.7153 -3.61681.21443.3058 -3.41381.53110.3922 -1.43731.91423.3029 -2.446 2.58473.6337 -2.57952.5412-0.0199-1.46623.0215-0.0662-1.41931.97441.8029 -1.89432.78192.0817 -1.99082.74520.3161 -1.62372.97732.5595 -2.17781.62920.1385 -1.53791.94754.9803 -3.18332.36420.0785 -1.51193.00860.6928 -1.53152.92780.8686 -1.58722.90471.0241 -1.97212.88421.2345 -1.71011.80340.6713 -1.796 1.87754.9803 -3.18332.36422.0392 -2.53522.75081.5709 -2.26451.75925.9455 -3.72572.23732.6553 -2.92161.61664.3123 -2.86952.4525.098 -3.268 1.2955
X坐标Y坐标Z坐标3.7066 -3.782 1.47840.0739 -1.50741.9562.6715 -2.20372.66772.9821 -2.32092.6268-0.0218-1.46241.96861.2898 -1.723 2.84931.5349 -1.804 2.81710.5505 -1.736 2.94651.9937 -1.97141.70360.3052 -1.61731.92563.4834 -2.53891.50780.4112 -1.44362.96480.5403 -1.48372.94780.8308 -1.57741.85650.9947 -1.95921.83496.8009 -4.42742.12497.0338 -4.715 2.09427.0799 -5.182 1.0354.5042 -4.71972.42684.0731 -4.185 1.43035.0754 -5.93142.35174.7871 -5.33191.33647.3595 -5.36452.05147.4367 -5.70222.04137.1904 -6.13311.02056.2489 -3.93662.19746.5363 -4.16912.15966.7669 -4.55811.07623.9882 -4.05972.49464.7839 -5.20412.394.3979 -4.62281.38764.9651 -5.79981.3137.4358 -6.35662.04147.0338 -4.715 2.09427.2248 -5.03242.06917.1603 -5.50491.02446.2882 -4.03491.13914.344 -4.49052.44783.8946 -3.97911.45374.6735 -5.09361.35135.0878 -6.24791.29697.4367 -5.70222.04137.4599 -6.03562.03826.5363 -4.16912.15966.8009 -4.42742.12496.9493 -4.86341.0522
X坐标Y坐标Z坐标4.9947 -5.69252.36233.795 -3.858 2.524.6511 -4.95772.40744.2412 -4.39961.40825.1421 -6.165 2.34294.8839 -5.56771.32377.2248 -5.03242.06917.3595 -5.36452.05147.1953 -5.824 1.01986.2489 -3.93662.19746.5434 -4.28171.10554.1716 -4.27052.47054.898 -5.44962.3754.5423 -4.85431.36865.0324 -6.02691.30427.4599 -6.03562.03827.4358 -6.35662.04146.0214 -8.02092.22735.8376 -8.13013.30466.4655 -7.628 1.11585.6741 -7.85092.2735.5011 -7.55771.24265.8106 -7.95022.2555.8268 -7.959 2.25295.7985 -7.94332.25665.687 -7.70981.21816.284 -8.245 3.2465.9587 -8.00912.23565.5958 -7.64751.23016.9985 -7.838 3.1525.3562 -6.75943.36796.5734 -7.85962.15486.4352 -7.93982.17296.1093 -7.78941.16267.6662 -6.58683.06435.5373 -7.652 3.34417.2761 -6.94032.06245.321 -7.01532.31946.7359 -7.36391.08025.1342 -6.46161.29085.7509 -8.05243.3165.5358 -7.67842.29125.342 -7.30041.26355.8848 -8.16243.29845.8728 -8.15473.35.7401 -7.90522.2643
X坐标Y坐标Z坐标5.877 -7.98232.24636.0361 -8.22973.27865.8488 -7.96992.255.7228 -7.72941.21346.5328 -8.17133.21336.1978 -8.01752.20416.1012 -8.02562.21685.8795 -7.78611.19285.9115 -7.99532.24187.3191 -7.43883.10995.43 -7.175 3.35826.8686 -7.59932.1166.7196 -7.74672.13555.1971 -6.392 2.33576.3355 -7.70961.13297.3722 -6.65942.04975.6315 -7.80782.27865.6223 -7.86543.3335.3972 -7.34292.30946.9815 -6.95891.04795.2129 -6.85491.28047.3722 -6.65942.04977.1532 -7.19672.07855.815 -8.11243.30765.4478 -7.49091.24965.8001 -7.76321.20325.9236 -8.18473.29335.8106 -7.95022.2555.7825 -7.93372.25875.6638 -7.69581.22126.1835 -8.251 3.25925.9587 -8.00912.23566.3099 -7.99052.18945.7726 -7.75251.20696.8361 -7.98293.17345.3113 -6.53363.37386.4352 -7.93982.17296.3099 -7.99052.18947.5823 -6.897 3.07535.4991 -7.51333.34917.1532 -7.19672.07856.6008 -7.51321.0987.0151 -7.41632.09675.7105 -8.00523.32135.4873 -7.588 2.29757.1505 -6.42771.0257
X坐标Y坐标Z坐标5.2942 -7.17251.26975.1752 -6.66721.28545.9523 -8.19883.28965.8569 -8.14413.30215.7106 -7.88262.26825.5511 -7.609 1.2365.9877 -8.21373.28495.8488 -7.96992.255.8268 -7.959 2.25295.8106 -7.95022.2555.7068 -7.72091.21556.4012 -8.22 3.23066.1012 -8.02562.21686.0214 -8.02092.22735.8338 -7.77431.19886.0167 -7.79881.17487.1614 -7.65713.13065.3952 -6.97663.36286.7196 -7.74672.13556.5734 -7.85962.15486.2165 -7.76141.14855.5789 -7.76943.33877.2761 -6.94032.06245.3579 -7.189 2.31456.8647 -7.17911.06335.7862 -8.08743.31145.5847 -7.75112.28475.3943 -7.40651.25665.9013 -8.17233.29635.8848 -8.16243.29845.763 -7.92112.26135.6336 -7.67571.22516.1009 -8.24393.275.9115 -7.99532.24185.877 -7.98232.24635.751 -7.74311.20975.735 -7.73551.21186.6793 -8.09333.1946.1978 -8.01752.20415.94 -7.79581.18487.464 -7.18163.09085.4638 -7.35413.35387.0151 -7.41632.09676.8686 -7.59932.1165.2434 -6.61152.32965.735 -7.73551.2118
X坐标Y坐标Z坐标5.6669 -7.94353.32715.284 -6.82262.32435.4404 -7.47612.30377.0798 -6.704 1.0355.2516 -7.02361.27530.0174 -1.32040.9103-0.0658-1.36360.92120.1872 -1.37190.8879-0.0416-1.33260.9180.0609 -1.33250.9045-0.0658-1.36360.9212-0.0696-1.37660.9217-0.0162-1.32050.91470.117 -1.34990.8972-0.0574-1.34860.92010.3738 -1.431 0.86341.5298 -2.24090.71142.5964 -2.866 0.57123.6224 -3.70390.43645.4888 -3.51130.1913.3358 -2.50030.474-0.0235-1.45820.91561.9072 -1.95360.66180.2943 -1.61160.87390.9656 -1.94750.78561.9405 -2.46540.65745.7743 -3.69680.15353.0267 -3.17610.5147-0.0664-1.41570.92134.2748 -2.89860.3506-0.0709-1.39410.92190.0696 -1.50270.90340.4924 -1.46930.84781.3345 -2.13790.73712.3738 -2.72210.60053.4315 -3.51930.46143.6502 -2.62970.4327-0.0525-1.43830.91942.7352 -2.26260.5532.1733 -2.05070.62680.207 -1.569 0.88530.9765 -1.62920.78420.8002 -1.86360.80732.8144 -3.01710.54260.2724 -1.39880.87671.732 -2.34970.6849
X坐标Y坐标Z坐标1.4052 -1.77580.72784.5843 -3.03960.30990.516 -1.72110.84473.0307 -2.37810.51415.1931 -3.34290.22994.8909 -3.18680.26961.6511 -1.86210.69550.0179 -1.47790.91020.6324 -1.51490.82941.1463 -2.04030.76192.1547 -2.58910.62933.2327 -3.34340.48760.3973 -1.66230.86033.9633 -2.76220.39152.4493 -2.15360.59060.1324 -1.53290.89510.7938 -1.56810.80821.1803 -1.69830.75740.6503 -1.78810.8276.2895 -4.14080.08584.4354 -4.75150.32954.9234 -5.891 0.26536.8003 -5.00720.01863.9779 -4.09860.38964.8558 -5.67010.27424.6774 -5.21560.29775.0257 -6.31420.25196.9416 -5.917 06.5028 -4.40680.05774.294 -4.52610.34816.9279 -5.62060.00186.8822 -5.31590.00784.1413 -4.30840.36816.0437 -3.90490.11813.8048 -3.897 0.41244.5647 -4.98420.31254.9791 -6.10610.2586.9256 -6.20180.00216.6756 -4.70120.0354.7742 -5.44460.28495.3029 -7.22670.21545.6751 -7.52710.16655.6593 -7.52070.16865.8585 -7.57080.14246.3575 -7.39660.07685.6311 -7.50820.1723
X坐标Y坐标Z坐标6.8808 -6.47190.0085.1462 -6.86090.2365.4188 -7.36480.20025.6112 -7.49850.17496.1231 -7.53250.10765.7232 -7.54410.16026.0208 -7.56150.12115.1924 -7.00470.236.6025 -7.12930.04465.2451 -7.12690.2235.5182 -7.44430.18715.6593 -7.52070.16865.6472 -7.51550.17025.8001 -7.563 0.15015.932 -7.57210.13276.2358 -7.47970.09286.8079 -6.72380.01765.1055 -6.69710.24145.6963 -7.53510.16375.3615 -7.30450.20775.557 -7.46890.1825.5877 -7.48630.1786.4818 -7.28020.06055.4717 -7.41040.19325.7559 -7.55330.15596.7131 -6.94350.03015.0668 -6.51450.2465还应该知道上表中所公开的翼面可按几何比例放大或缩小以便用于其他类似的涡轮设计。因此，表1中所给定的坐标值可以按比例放大或缩小，使得翼面断面形状保持不变。表1中的坐标值的按比例变化值可以由X，Y，Z坐标值乘以或除以同一常数或数值来表示。
在图3和图4中，径向最外端的翼面52被表示为沿着该翼面长度具有图4所示的各其他轮廓断面，这些各轮廓也在图6中表示，其轮廓是一个叠加在另一个上的。
虽然本发明已结合目前认为是最实际的和优选的实施例作了说明，要明白本发明并不局限在所公开的实施例，而相反，要覆盖在所附的权利要求书的精神和范围内所包括的各种改进和等同的结构。
权利要求
1.一种涡轮喷嘴(12)，具有喷嘴叶片(14)，其叶片的翼面形状为在沿垂直于任何翼面表面位置方向的±0.100英寸内的包络面，而该翼面的不含涂层的名义轮廓，实际上符合表1中给定的以英寸为单位的X，Y，Z笛卡儿坐标值，而X，Y，Z值以该翼面的径向最内端的气动力学断面为始点，并且Z坐标值相对于那个断面计算，各个Z距离处的轮廓互相平滑地连接以形成完整的翼面形状。
2.按照权利要求1的一种涡轮喷嘴构成第2级涡轮的一部分。
3.一种涡轮喷嘴(12)，具有喷嘴叶片(14)，其翼面形状为实际上符合表1中所给定的X，Y，Z笛卡儿坐标值的不含涂层的名义翼面轮廓，而X、Y、Z值以该翼面的径向最内端的气动力学断面为始点，并且Z坐标值相对于那个断面计算，各个距离Z处的轮廓互相平滑地连接以形成完整的翼面形状；X，Y，Z值作为该同一常数或数字的函数被改变比例，以产生放大或缩小的喷嘴翼面。
4.按权利要求3的一种涡轮喷嘴，构成第二极涡轮的一部分。
5.一种涡轮，包括一个具有若干叶片(14)的涡轮喷嘴(12)，每个所述叶片的翼面形状为在沿垂直于任何喷嘴翼面表面位置方向的在±0.100英寸内的包络面，而该翼面的不含涂层的名义轮廓，实际上符合表1中规定的以英寸为单位的X，Y，Z笛卡儿坐标值，而X、Y、Z值以该翼面的径向最内端的气动力学断面为始点，并且Z坐标值相对于该断面计算，各个Z距离处的轮廓互相平滑地连接以形成完整的翼面形状。
6.按照权利要求5的一种涡轮，其特征在于该涡轮喷嘴包括一个第2级涡轮。
7.按照权利要求5的一种涡轮，其特征在于该涡轮喷嘴具有60个叶片。
8.一种涡轮，包括具有若干叶片(14)的涡轮喷嘴(12)，每个所述叶片为具有实际上符合表1中给定的以英寸为单位的X，Y，Z笛卡儿坐标值的不含涂层的叶片名义轮廓的翼面形状，而X，Y，Z值该翼面的径向最内端的气动力学断面为始点，并且Z坐标值相对于该断面计算，各个Z距离处的轮廓线相平滑地连接以形成完整的翼面形状；X，Y，Z值作为该同一常数或数字的函数被改变比例，以产生放大或缩小的喷嘴翼面。
9.按照权利要求8的一种涡轮，其特征在于该涡轮喷嘴包括一个第2级涡轮。
10.按照权利要求8的一种涡轮，其特征在于该涡轮喷嘴具有60个叶片。
全文摘要
第2级喷嘴(12)具有一些叶片(14)，这些叶片包括实际上按照表1中给定的以英寸为单位的笛卡尔坐标的X，Y，Z值的翼面轮廓，而X，Y，Z值该翼面的径向最内端的气动力学断面为始点，且Z坐标值相对于则以那个断面计算。X，Y，Z值作为同一常数或数值的函数被改变，以产生放大或缩小的喷嘴翼面。
文档编号F01D9/02GK1568396SQ02817422
公开日2005年1月19日 申请日期2002年7月9日 优先权日2001年7月13日
发明者C·A·比莱克, T·沃, F·J·布伦纳 申请人:通用电气公司