Invention Grant
- Patent Title: Turbomachine blade with variable chord length
- Patent Title (中): 具有可变弦长度的涡轮机叶片
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Application No.: US12078965Application Date: 2008-04-08
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Publication No.: US08221065B2Publication Date: 2012-07-17
- Inventor: Ralf Greim , Said Havakechian , Ivan McBean , Simon-Pierre Monette
- Applicant: Ralf Greim , Said Havakechian , Ivan McBean , Simon-Pierre Monette
- Applicant Address: CH Baden
- Assignee: Alstom Technology Ltd
- Current Assignee: Alstom Technology Ltd
- Current Assignee Address: CH Baden
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: CH1643/05 20051011
- Main IPC: F01D5/14
- IPC: F01D5/14 ; F01D1/02 ; F01D5/02
Abstract:
A blade of a turbomachine, especially of a steam turbine, is characterized in that the chord length (sm) in the middle region of the blade airfoil is shorter than the chord lengths (s0, S1) in the tip-side region or root-side region of the blade airfoil. As a result of this, a distribution of a Zweifel parameter over the longitudinal extent of the blade airfoil is achieved which minimizes the losses of a blade cascade of the blades.
Public/Granted literature
- US20100284801A1 Turbo machine blade Public/Granted day:2010-11-11
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