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.

Inactive Publication Date: 2002-11-13
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The role of these two possibilities is difficult to predict and is affected by fluc

Method used

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  • Turbine propeller and turbine engine
  • Turbine propeller and turbine engine
  • Turbine propeller and turbine engine

Examples

Experimental program
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Embodiment Construction

[0024] figure 1 A schematic longitudinal section of a gas turbine 10 with a housing 11 and a rotor 12 is shown. The casing 11 has stationary blades 13 and the rotor 12 has moving blades 14 . The hot flue gases pass through the gas turbine 10 in the direction of arrow 15 , causing the rotor 12 to rotate about an axis of rotation 16 in the direction of arrow 17 .

[0025] Figures 2 to 4 A design according to the prior art is shown. especially in figure 2 and image 3 As shown in , a plurality of stator blades A are arranged uniformly on the circumference of the gas turbine 10 . Each stationary blade A has a bottom plate B for fixing on the casing 11 and covering the gap between the two stationary blades A, a top plate C and a blade airfoil D between them. The longitudinal axis E of the blade profile passes through the axis of rotation 16 of the rotor 12 . Each base and top plate B, C protrudes from the blade airfoil D at a right angle F. For convenience of description,...

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PUM

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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.

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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Application Information

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IPC IPC(8): B22C9/22B22D27/04F01D5/14F01D5/28F01D5/34F01D9/02
CPCF01D5/141F01D5/34F01D9/02F05D2240/80Y10T29/49336
Inventor 迈克尔·亨德勒彼得·蒂曼
Owner SIEMENS AG
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