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Fabrication method for nozzle vane

A technology for nozzle blades and manufacturing methods, which is applied to parts of pumping devices for elastic fluids, non-variable pumps, engine components, etc., and can solve the problems of increased manufacturing costs of nozzle blades, time-consuming work, and workload.

Inactive Publication Date: 2012-01-25
IHI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, the cutting process takes more time and effort than the pressing process, so the use of such a cutting process has the problem of increasing the manufacturing cost of the nozzle vane.

Method used

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  • Fabrication method for nozzle vane
  • Fabrication method for nozzle vane
  • Fabrication method for nozzle vane

Examples

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Embodiment Construction

[0044] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0045] refer to Figure 1A to Figure 2B The configurations of the nozzle vane 1 and the preformed member 2 of the present embodiment will be described.

[0046] Figure 1A It is a plan view showing the structure of the nozzle vane 1 of this embodiment.

[0047] Figure 1B It is a side view showing the structure of the nozzle vane of this embodiment. Figure 2A It is a top view showing the structure of the rough-formed part of this embodiment. Figure 2B It is a side view showing the structure of the preformed part of this embodiment.

[0048] Nozzle vane 1 is on Figure 11 The variable vane used in the variable capacity turbocharger 10 shown.

[0049] A capacity-variable turbocharger is a supercharger capable of improving the performance of an engine (not shown) in a wide range from a low rotation speed range to a high rotation speed range. The aforementioned tur...

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PUM

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Abstract

Disclosed is a fabrication method for a nozzle vane having a vane section and an axle section protruding from particular end faces of the aforementioned vane section, where said method is provided with a first step, where an axle preform section of a fabricated member having a vane preform section and an axle preform section, respectively with various dimensions approximating the dimensions of the aforementioned vane section and the aforementioned axle section, is inserted into a axle section shaping mold which is formed with a first insertion section having the contours of the projection of the aforementioned axle section in the axle direction, and the aforementioned axle preform section is pressed in the aforementioned axle direction thus shaping the aforementioned axle section; and a second step where the aforementioned fabricated member is inserted into a vane section shaping mold after the aforementioned first step, said vane section shaping mold being formed with a second insertion section having the contours of the projection of the aforementioned nozzle vane in the direction approximately perpendicular to the vane surface of the aforementioned vane section, and the aforementioned vane preform section is pressed in the direction approximately perpendicular to the vane surface thus shaping the aforementioned vane section.

Description

technical field [0001] The present invention relates to a method of manufacturing a nozzle vane having a wing portion and a shaft protruding from a predetermined end surface of the wing portion. [0002] This application claims priority based on Japanese Patent Application No. 2009-42164 filed in Japan on February 25, 2009, and the content thereof is incorporated herein. Background technique [0003] Conventionally, there is known a nozzle vane which has a wing and a shaft protruding from a predetermined end surface of the wing, and is used, for example, in a variable capacity turbocharger. [0004] A capacity-variable turbocharger is a supercharger capable of improving the performance of an engine over a wide range from a low rotation speed range to a high rotation speed range. The turbocharger includes a rotor blade that rotates by the flow of exhaust gas discharged from the engine, and a variable nozzle that surrounds the rotor blade in a substantially annular shape and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/24F02B39/00
CPCF04D29/462F01D17/165F02B37/24F02B39/00F01D17/16
Inventor 松山良满高桥幸雄
Owner IHI CORP
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