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Variable displacement turbine

A technology for turbines and turbine shafts, which is applied to gas turbine devices, mechanical equipment, engine components, etc., and can solve problems such as complex axial casings

Inactive Publication Date: 2010-06-16
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Avoids the problem of axial housings becoming too complex

Method used

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Embodiment Construction

[0030] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. When the shapes, relative positions and other aspects of parts described in the embodiments are not clearly defined, the scope of the present invention is not limited to the parts shown in the drawings, and the contents shown in the drawings are only illustrative.

[0031] figure 1 It is a cross-sectional view of the essential parts of the nozzle adjustment mechanism in the supercharger with variable volume turbine according to the first preferred embodiment of the present invention. figure 2 is a sectional view taken along the axis of the variable capacity turbine of the first embodiment. exist figure 2 Among them, the parts belonging to the prior art are in Figure 5shown in . image 3 for along figure 2 Sectional view taken along line A-A. Figure 4 for corresponding to figure 1 The sectional view of the second embodiment of the pre...

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Abstract

To provide a variable displacement turbine allowing a variable-nozzle mechanism comprising a nozzle driving member, connecting members, and nozzle vanes to be arranged on the inside of a scroll formed on a turbine casing, compactly miniaturized due to its shortened axial length, having improved mountability on a vehicle, avoiding the complexity of the structure of a center easing section, having low assembling and disassembling man-hours, and capable of keeping good maintainability. The variable displacement turbine comprises the following components: a nozzle driving member connected with an actuator; and a nozzle adjusting mechanism which comprises a plurality of connecting parts for connecting the nozzle driving member with the nozzle vanes. The nozzle adjusting mechanism is equipped in a connecting chamber in a vortex tube. The connecting chamber is provided at the air outlet side of the nozzle vanes.

Description

[0001] This application is a divisional application of the invention application with the application number 01116993.1 filed on May 21, 2001 and the title of the invention is "Variable Volume Turbine". technical field [0002] The invention relates to a radial flow variable volume turbine for use as a supercharger (exhaust turbocharger) for an internal combustion engine. This radial flow variable volume turbine is constructed: the working gas flows from the helical scroll in the turbine casing through multiple nozzle vanes with variable angles, and the gas flows to the turbine rotor, so that the gas drives the rotor to rotate. Background technique [0003] In recent years, it has become more and more common to have a supercharger, if any, for an internal combustion engine in the form of a variable-volume turbine. This type of turbine varies the flow rate of the exhaust gas delivered by the helical scroll to the turbine rotor according to the operating state of the engine. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D17/16F02C6/12F02B37/24
CPCF01D17/165F02C6/12F02B37/24
Inventor 阵内靖明
Owner MITSUBISHI HEAVY IND LTD
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