Turbine propeller and turbine engine

A technology for turbines, turbine blades, applied in the direction of supporting elements of blades, mechanical equipment, engine elements, etc.
CN1379165AInactive Publication Date: 2002-11-13SIEMENS AG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SIEMENS AG
Publication Date
2002-11-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a turbine blade, in particular for a gas turbine (10), having a blade airfoil (20) and at least one platform for fastening to an upperly arranged component (11, 12) (18, 19). According to the invention, each platform (18, 19) forms an obtuse angle (22, 23) with the longitudinal axis (21) of the blade airfoil (20). Through this structural design, it becomes easy to manufacture the turbine blade as a single crystal.
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Description

technical field

[0001] The invention relates to a turbine blade, in particular a turbine blade for a gas turbine. The invention also relates to a turbine employing such a turbine blade. Background technique

[0002] Such a turbine blade and its casting method are disclosed, for example, in US 5,599,166 and US 5,820,774. The platform of this known turbine blade protrudes on both sides of the blade airfoil in the circumferential direction of the turbine and is perpendicular to the longitudinal axis of the blade airfoil.

[0003] Due to this known turbine blade, thermal and mechanical boundary conditions can no longer be tolerated in the process of further increasing power and efficiency and reducing pollution. Therefore, strive to change the material structure, so that the turbine blade can be composed of a single continuous crystal. In order to achieve this growth of single crystals, certain requirements must be met, such as a certain solidificati...

Claims

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