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Method of manufacturing turbine frame of VGS type turbo charger, turbine frame manufactured by the method, exhaust gas guide assembly of VGS type turbo charger using the turbine frame and VGS type tur

A technology of turbocharger and manufacturing method, which is applied in the direction of engine manufacturing, gas turbine device, machine/engine, etc., can solve the problems of labor-intensive processing, difficult-to-cut materials, etc., achieve high heat resistance, high-efficiency processing, and reduce wrinkle skin Effect

Inactive Publication Date: 2005-01-05
AKITA FINE BLANKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of material is generally a difficult-to-cut material, and it takes a lot of time to cut it, so there is a problem that it takes a lot of time to process it.

Method used

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  • Method of manufacturing turbine frame of VGS type turbo charger, turbine frame manufactured by the method, exhaust gas guide assembly of VGS type turbo charger using the turbine frame and VGS type tur
  • Method of manufacturing turbine frame of VGS type turbo charger, turbine frame manufactured by the method, exhaust gas guide assembly of VGS type turbo charger using the turbine frame and VGS type tur
  • Method of manufacturing turbine frame of VGS type turbo charger, turbine frame manufactured by the method, exhaust gas guide assembly of VGS type turbo charger using the turbine frame and VGS type tur

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Embodiment Construction

[0033] The present invention will be described below based on the illustrated embodiments. When explaining, the exhaust duct assembly A in the VGS type turbocharger using the turbine frame 2 of the present invention will be described, and the turbine frame 2 will be mentioned together, and then, the manufacturing method of the turbine frame will be described. .

[0034] The exhaust duct assembly A, especially when the engine is running at low speed, properly concentrates the exhaust gas G to adjust the exhaust gas flow, as shown in Fig. A plurality of variable vanes 1 for the flow rate, a turbine frame 2 for rotatably holding the variable vanes 1 , and a variable mechanism 3 for rotating the variable vanes 1 for appropriately setting the flow rate of the exhaust gas G by a certain angle. Each component will be described below.

[0035] First, the variable vane 1 will be described. As an example, as shown in FIG. 1, a plurality of these components are arranged in an arc shap...

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Abstract

A novel method of manufacturing a turbine frame for rotatably holding adjustable blades in a VGS turbocharger is provided, which method is capable of manufacturing the turbine frame while almost eliminating a time-consuming cutting operation, whereby mass production of the turbine frame and the like can be realized. The invention is characterized in that: a blank which is punched out from a metal material having a substantially constant thickness in such a manner as to integrally include a boss forming portion (24a) and a flange forming portion (23a) is used as a shaped material (W) serving as an original member for the turbine frame; when the shaped material (W) is processed, the boss forming portion (24a) is formed into a projecting state by a press forging tool; receiving holes for rotatably holding the respective adjustable blades are formed in the flange forming portion (23a) by punching; and when the shaped material (W) is processed, some or all of the manufacturing processes are carried out in a warm condition.

Description

technical field [0001] The present invention relates to a novel manufacturing method that eliminates labor-intensive cutting work as much as possible when manufacturing a VGS type turbocharger used in an automobile engine, etc., especially when manufacturing a turbine frame incorporated therein to rotatably hold variable vanes. Background technique [0002] As a supercharger used in a mechanism for increasing the power and performance of an automobile engine, the turbocharger is well known. This mechanism drives the turbine by the exhaust energy of the engine, and the output of the turbine makes the compression A device that rotates the engine to bring the engine to a supercharged state above that of natural aspiration. However, when the engine rotates at a low speed, the exhaust turbine hardly moves due to the low exhaust flow rate of this turbocharger. Therefore, when the engine rotates until the high-speed region, there is a sense of sluggishness until the turbine rotates...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B39/00B21D19/08B21D22/02B21D22/20B21D28/24B21D35/00B21D53/84B21K3/04F01D17/16F01D25/24F02B37/24F02C6/12
CPCF02B37/24F05B2230/20F05B2220/40F01D17/165Y02T10/144B21D22/20B21D28/24B21D22/02F05D2230/20F02C6/12F05D2230/25F05D2220/40F05B2230/23F05B2230/25F05D2230/23B21D19/08Y10T29/4932Y02T10/12F01D25/24
Inventor 大石新二朗
Owner AKITA FINE BLANKING
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