Invention Grant
US08662828B2 High pressure turbine of a turbomachine with improved assembly of the mobile blade radial clearance control box
有权
涡轮机的高压涡轮机，改进了移动叶片径向间隙控制箱的组装
- Patent Title: High pressure turbine of a turbomachine with improved assembly of the mobile blade radial clearance control box
- Patent Title (中): 涡轮机的高压涡轮机，改进了移动叶片径向间隙控制箱的组装
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Application No.: US12994969Application Date: 2009-05-25
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Publication No.: US08662828B2Publication Date: 2014-03-04
- Inventor: Alain Dominique Gendraud , Delphine Roussin-Leroux , Jean-Luc Le Strat , Pascal Tatiossian
- Applicant: Alain Dominique Gendraud , Delphine Roussin-Leroux , Jean-Luc Le Strat , Pascal Tatiossian
- Applicant Address: FR Paris
- Assignee: SNECMA
- Current Assignee: SNECMA
- Current Assignee Address: FR Paris
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0853471 20080528
- International Application: PCT/EP2009/056279 WO 20090525
- International Announcement: WO2009/144191 WO 20091203
- Main IPC: F01D11/24
- IPC: F01D11/24 ; F01D25/04
Abstract:
A high pressure turbine of a turbomachine such as a turbojet, in which a control box of radial clearances of rotating blades are provided. An annular element including a determined flexibility has one end fixed to an annular support and the other end supported by a simple axial bearing with a given pressure on the upstream side of the control box. Thus, disturbing vibration loads are prevented at the attachment points of the control box with the external casing of turbines, thereby also eliminating the risk of cracks occurring.
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