| 摘要 |
Discrete bleed behind stator vane platform The present invention relates to a system (100) for bleeding off a working fluid from an inner volume (Vi) of a turbo- machine. The system (100) comprises a vane carrier (104) with an annular rail (105) and a vane device comprising at least one vane element (101), a vane platform (102) and a vane root (103). The vane element (101) is mounted to the vane platform (102) and the vane root (103) is mounted to the annular rail (105). A first annular cavity (106) is formed between the vane platform (102) and the annular rail (105), wherein an annular gap (108) is formed between an edge (110) of the vane platform (102) and the vane carrier (104) such that a part of the working fluid of the turbo-machine is bleedable through the annular gap (108) into the first annular cavity (106). A second annular cavity (107) is formed between the vane root (103), the annular rail (105) and the vane carrier (104), wherein at least one inlet hole (109) is formed into the annular rail (105) for coupling the first annular cavity (106) and the second annular cavity (107). |
