Title:
MOVABLE BLADE OF HIGH-PRESSURE TURBINE
Document Type and Number:
WIPO Patent Application WO/2024/017385
Kind Code:
A1
Abstract:
A movable blade of a high-pressure turbine. A cooling unit is provided in the movable blade, and has cooling chambers which are in communication with an inner chamber via an impact hole. The cooling unit comprises at least one series-connection dual-wall cooling unit, which comprises a plurality of cooling chambers formed between an outer wall and an inner wall, wherein the plurality of cooling chambers communicate with each other sequentially. The impact hole comprises a first impact hole, the cooling chamber at a head end communicates with the inner chamber via the first impact hole, and the cooling chamber at a tail end communicates with the outside via an air film hole or a tail edge crack. The cooling unit is arranged in the movable blade of the high-pressure turbine, and configured to cool different areas in the movable blade. In addition, the cooling unit comprises at least one series-connection dual-wall cooling unit, and cold air sequentially flows through the plurality of cooling chambers in the movable blade, so as to increase a cold air flow path, such that a continuous impact jet flow is formed many times in the movable blade, thereby reducing the thermal load of the movable blade of the high-pressure turbine.
Inventors:
YOU YULONG (CN)
DING LIANG (CN)
TAN ZHIYONG (CN)
HOU NAIXIAN (CN)
DING LIANG (CN)
TAN ZHIYONG (CN)
HOU NAIXIAN (CN)
Application Number:
PCT/CN2023/108842
Publication Date:
January 25, 2024
Filing Date:
July 24, 2023
Export Citation:
Assignee:
AECC COMMERCIAL AIRCRAFT ENGINE CO LTD (CN)
International Classes:
F01D5/18
Foreign References:
| CN103277145A | 2013-09-04 | |||
| CN205382958U | 2016-07-13 | |||
| CN108999645A | 2018-12-14 | |||
| CN109139128A | 2019-01-04 | |||
| US20170356295A1 | 2017-12-14 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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