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2. 发明授权

US4092768A Method for making a diaphragm with cast nozzle blocks 失效
标题翻译：制造具有铸造喷嘴块的隔膜的方法
公开(公告)号：US4092768A
公开(公告)日：1978-06-06
申请号：US687923
申请日：1976-05-19
申请人： William W. Browning , Donald J. Legacy
发明人： William W. Browning , Donald J. Legacy
IPC分类号： F01D9/02 , F01D9/04 , B23P15/04
CPC分类号： F01D9/044 , Y10S415/915 , Y10T29/49323 , Y10T29/49799
摘要： Manufacture of a turbine diaphragm assembly is effected by forming an arcuate V-shaped nozzle block mounting groove on the front side of a generally cylindrical plate so that the respective side surfaces of the V-shaped nozzle block mounting groove has a predetermined slope with respect to the longitudinal axis of the cylindrical plate, investment casting a plurality of individual nozzle blocks each of which includes, a nozzle blade extending in curvilinear fashion between an inner and an outer shroud segment which shroud segment on each nozzle block interfits with the inner and outer shroud segment of each of the other nozzle blocks, the said inner and outer shroud segments being sloped on their outer surfaces to correspond with the slope of the respective inner and outer side surfaces of the V-shaped nozzle block mounting groove so that an arcuate array of said nozzle blocks can be mounted in said V-shaped nozzle block mounting groove in interfitted, side by side relationship in such a manner that the respective exit edges of the respective nozzle blades of said nozzle blocks are substantially radially disposed relative to the longitudinal axis of said cylindrical plate, bonding said inner and outer shroud segments of the respective plurality of nozzle blocks to the respective inner and outer side surfaces of said V-shaped nozzle mounting groove, and removing material from the back face of said cylindrical plate in alignment with said nozzle blade mounting groove so as to open flow passages through said cylindrical plate as defined by the adjacent nozzle blades of the interfitted nozzle blocks.
摘要翻译：涡轮隔膜组件的制造通过在大致圆柱形板的正面上形成弓形V形喷嘴块安装槽来实现，使得V形喷嘴块安装槽的相应侧表面相对于圆柱形板的纵向轴线，熔模铸造多个单独的喷嘴块，每个喷嘴块包括在内部和外部护罩区段之间以曲线形式延伸的喷嘴刀片，每个喷嘴块上的护罩区段与内部和外部护罩每个其他喷嘴块的段，所述内护罩段和外护罩段在其外表面上倾斜，以对应于V形喷嘴块安装槽的相应的内侧和外侧表面的斜度，使得弧形喷嘴块的弧形阵列所述喷嘴块可以以这样的并排的并排关系安装在所述V形喷嘴块安装槽中将所述喷嘴块的各个喷嘴叶片的相应出口边缘相对于所述圆柱形板的纵向轴线基本上径向设置的方式，将相应的多个喷嘴块的内部和外部护罩段结合到相应的内部和外部所述V形喷嘴安装槽的侧表面，以及与所述喷嘴刀片安装槽对准的从所述圆柱形板的背面去除材料，以便打开通过所述圆柱形板的流动通道，所述流动通道由所配置的相邻喷嘴刀片喷嘴块。

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