Turbine blade with impingement cavity cooling including pin fins

a technology of impingement cavity and turbine blade, which is applied in the direction of blade accessories, engine fuctions, machines/engines, etc., can solve the problems of localized hot spots and the likelihood of failure, and achieve the effect of increasing reducing the flow rate of cooling air
US20130084191A1Inactive Publication Date: 2013-04-04SIEMENS AG
3 Cites 14 Cited by

Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
SIEMENS AG
Publication Date
2013-04-04
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A turbine blade including an airfoil having a cavity defined between pressure and suction side walls, and first and second cooling circuits located within the cavity. The second cooling circuit includes a first upstream impingement cavity, a second upstream impingement cavity and a discharge impingement cavity. A plurality of pin fins are located within each of the impingement cavities, extending between the pressure and suction side walls to provide cooling to the pressure and suction side walls, and to restrict flow through the second cooling circuit and to direct an increased flow of cooling fluid into the first cooling circuit.
Need to check novelty before this filing date? Find Prior Art

Description

FIELD OF THE INVENTION

[0001] This invention is directed generally to turbine blades and, more particularly, to a turbine blade having cooling circuits for conducting a cooling fluid through an airfoil of the blade to provide an improved thermal balance between parts of the airfoil.BACKGROUND OF THE INVENTION

[0002] A conventional gas turbine engine includes a compressor, a combustor and a turbine. The compressor compresses ambient air which is supplied to the combustor where the compressed air is combined with a fuel and ignites the mixture, creating combustion products defining a working gas. The working gas is supplied to the turbine where the gas passes through a plurality of paired rows of stationary vanes and rotating blades. The rotating blades are coupled to a rotor assembly. As the working gas expands through the turbine, the working gas causes the blades, and therefore the rotor assembly, to rotate.

[0003] Typical turbine combustor configurations expose turbine blade assemblies ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More