![A gas turbine engine and a diffuser therefor](/ep/1996/02/07/EP0695874A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: A gas turbine engine and a diffuser therefor
- 专利标题(中):Ein Gasturbinentriebwerk und ein Diffusordafür
- 申请号:EP95303806.4 申请日:1995-06-05
- 公开(公告)号:EP0695874A1 公开(公告)日:1996-02-07
- 发明人: Richards, Stephen John , Simmonds, Gabriel , Hatfield, John Edmond
- 申请人: ROLLS-ROYCE plc
- 申请人地址: 65 Buckingham Gate London, SW1E 6AT GB
- 专利权人: ROLLS-ROYCE plc
- 当前专利权人: ROLLS-ROYCE plc
- 当前专利权人地址: 65 Buckingham Gate London, SW1E 6AT GB
- 代理机构: Gunn, Michael Alan
- 优先权: GB9415685 19940803
- 主分类号: F04D29/54
- IPC分类号: F04D29/54 ; F01D25/30 ; F15D1/04
摘要:
A gas turbine engine with first and second axial flow compressors and an intercooler therebetween is provided with a bend diffuser (16) and a radial flow diffuser (18) to diffuse the air leaving the downstream end (38) of the first axial flow compressor (14) at a first radial distance (R₁) from the axis to the upstream end of the intercooler at a second radial distance from the axis . The bend diffuser (16) comprises a first radially outer wall (54) and a second radially inner wall (56). The first wall (54) is elliptical and the second wall (56) has a profile derived from a relationship between the local area ratio and the path length around the arc such there is rapid diffusion in the bend diffuser (16) without fluid flow separation from the first wall (54).
摘要(中):
具有第一和第二轴流式压缩机和其间的中间冷却器的燃气涡轮发动机设置有弯曲扩散器(16)和径向流动扩散器(18),以扩散离开第一轴流压缩机的下游端(38)的空气 14)在距离轴线的第二径向距离处于中间冷却器的轴线到上游端的第一径向距离(R1)处。 弯曲扩散器(16)包括第一径向外壁(54)和第二径向内壁(56)。 第一壁(54)是椭圆形的,并且第二壁(56)具有从局部面积比和弧周围的路径长度之间的关系导出的轮廓,使得弯曲扩散器(16)中没有流体流动分离 从第一个墙(54)。
公开/授权文献:
- EP0695874B1 A gas turbine engine and a diffuser therefor 公开/授权日:1998-01-07
IPC结构图谱:
F04D29/04 | 非变容式泵 |
--F04D29/42 | ..用于径向或螺旋离心泵 |
----F04D29/54 | ...流体导向装置,例如扩压器 |