公开(公告)号：US08807942B2

公开(公告)日：2014-08-19

申请号：US13232584

申请日：2011-09-14

申请人： Ian Tibbott ,  Dougal R. Jackson ,  Rory J. Clarkson

发明人： Ian Tibbott ,  Dougal R. Jackson ,  Rory J. Clarkson

IPC分类号： F01D5/18 ,  F01D5/30 ,  F01D5/08

CPC分类号： F01D5/081 ,  F01D5/082 ,  F01D5/085 ,  F01D5/087 ,  F01D5/088 ,  F01D5/3007 ,  F01D5/3015 ,  F05D2240/81 ,  F05D2260/201 ,  F05D2260/202 ,  Y02T50/676

摘要： A cooling arrangement is provided for a turbine disc of a gas turbine engine. The turbine disc has a plurality of circumferentially spaced disc posts forming fixtures therebetween for a row of turbine blades. Each turbine blade has an attachment formation which engages at a respective fixture, a platform radially outwardly of the attachment formation such that the adjacent platforms of the row form an inner endwall for the working gas annulus of the engine, and an aerofoil which extends radially outwardly from the platform. A respective cavity is formed between an exposed radially outer surface of each disc post and the inner endwall. The cooling arrangement has at each disc post, a cooling plate located in the respective cavity and spaced radially outwardly from the exposed outer surface of the disc post to form a cooling channel between the cooling plate and the exposed outer surface.

摘要翻译： 为燃气轮机的涡轮盘提供冷却装置。 涡轮盘具有多个周向间隔开的盘柱，在其间形成用于一排涡轮叶片的夹具。 每个涡轮机叶片具有附接结构，其接合在相应的固定装置处，附接结构的径向向外的平台，使得该排的相邻平台形成用于发动机的工作气体环的内端壁，以及一个径向向外延伸的翼型 从平台。 在每个盘柱的暴露的径向外表面和内端壁之间形成相应的空腔。 冷却装置在每个盘柱处具有位于相应空腔中的冷却板，并且与盘柱的暴露的外表面径向向外间隔开，以在冷却板和暴露的外表面之间形成冷却通道。