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Curved face vane for turbocharger

A technology for turbochargers and turbine impellers, which can be used in the direction of supporting elements of blades, gas turbine devices, machines/engines, etc., and can solve the problem of not waiting

Inactive Publication Date: 2007-02-07
HONEVILLE INT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such straight vanes are only able to provide uniform exhaust gas flow into the turbine wheel over a small portion of the total operating range and thus do not contribute to maximum efficient turbocharger operation

Method used

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  • Curved face vane for turbocharger
  • Curved face vane for turbocharger
  • Curved face vane for turbocharger

Examples

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Embodiment Construction

[0018] Constructed in accordance with the principles of the present invention, including curved vanes for use in vaned turbochargers, which may include but are not limited to variable geometry turbochargers (VGT). For convenience, throughout this specification, exemplary embodiments employing VGT will be described. However, those skilled in the art will readily deduce that the improved vanes of the present invention can be used in a variety of turbocharger configurations, including fixed vane turbochargers and other sliding and / or rotating vane types.

[0019] In general, the vanes are constructed with curved airfoils, the purpose of which is to widen the desired airflow distribution window in the turbocharger, thereby facilitating the minimization of airflow in the turbocharger when compared to conventional turbocharger vane designs. Any unwanted aerodynamic effects within the turbine housing and improve turbocharger operating efficiency.

[0020] Referring to FIG. 1 , a tur...

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Abstract

Cambered vanes of this invention are constructed for use within a vaned turbocharger and comprise an inner airfoil surface oriented adjacent a turbine wheel, and an outer airfoil surface oriented opposite the inner airfoil surface. The inner and outer airfoil surfaces define a vane airfoil thickness. A cambered vane leading edge or nose is positioned along a first inner and outer airfoil surface junction, and a vane trailing edge positioned along a second inner and outer surface junction. The vane inner and outer airfoil surfaces are specially configured to provide a vane camberline having a curved section. Specifically, the vane camberline curved section has a measure of curvature which is defined within a degree of tolerance by a vane placement or pivot diameter, as generally measured between diametrically opposed vanes mounted in the turbocharger, for providing improved gas flow distribution, thereby increasing the effective operating range of the turbocharger.

Description

technical field [0001] The present invention relates generally to the field of turbochargers, and in particular to variable geometry turbochargers employing movable vanes which are Specially shaped. Background technique [0002] Turbochargers for gasoline and diesel engines are known in the prior art and use the heat and volume flow of exhaust gases from the engine to pressurize or accelerate the intake air flow into the combustion chamber of the engine. Specifically, exhaust gases from the engine enter the turbine housing of the turbocharger in such a way that an exhaust-driven turbine rotates within the housing. The exhaust gas-driven turbine is mounted to one end of a shaft common to the radial air compressor, the air compressor being mounted to the opposite end of the shaft and housed in a compressor housing so that the rotational action of the turbine also The air compressor is caused to rotate within the compressor housing of the turbocharger, which is separate from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D17/16F02C6/12F01D5/14
CPCF01D17/165F05D2220/40F05B2220/40F01D5/141
Inventor J·P·卡斯唐
Owner HONEVILLE INT CORP
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