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Compressor of turbo machine and its compression impeller

A technology for compression devices and turbines, which can be used in the components of pumping devices for elastic fluids, mechanical equipment, engine components, etc., and can solve problems such as insufficient

Inactive Publication Date: 2005-02-02
KOMATSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to rotate the compression impeller 16 at a higher number of revolutions, but the conventional technology is not sufficient; a compression impeller 16 with higher durability is desired.

Method used

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  • Compressor of turbo machine and its compression impeller
  • Compressor of turbo machine and its compression impeller
  • Compressor of turbo machine and its compression impeller

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0036] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0037] exist image 3 Among them, the exhaust side portion 12 is composed of an exhaust side casing 15 and a turbine wheel 14 having a plurality of blades and fixed to a rotating shaft 23 .

[0038] The exhaust side casing 15 includes an exhaust gas inflow passage 19 for supplying exhaust gas to the turbine impeller 14 . The exhaust gas inflow passage 19 is formed in a ring shape around the outer periphery of the turbine impeller 14 and is connected to an engine exhaust gas flow path through which exhaust gas discharged from an engine (not shown in the figure) flows. In addition, the exhaust side casing 15 is further provided with an exhaust gas outlet 21 for discharging the exhaust gas given energy to the turbine impeller 14 . The exhaust gas outlet 21 is formed in a substantially cylindrical shape substantially concentrically with the rotation center of th...

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PUM

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Abstract

The invention provides a compressor of a turbo machine and its compressor wheel that do not easily undergo breaking even when rotated at a high number of revolutions. The compressor of the turbo machine includes a male screw portion integrally formed on a main body portion of the compressor wheel and a male screw portion disposed at a distal end of a shaft for driving the compressor wheel that are coupled with each other through a sleeve equipped at one of the ends thereof with a female screw portion capable of meshing with the male screw portion of the compressor wheel and at the other end with a female screw portion capable of meshing with the male screw portion of the shaft.

Description

technical field [0001] The invention relates to a compression device of a turbomachine and its compression impeller. Background technique [0002] As a turbocharger, there is known a compression device for a turbine in which the turbine is rotated by the energy of the exhaust gas via a shaft through a turbine wheel which increases the intake air volume of the engine by compressing the air, said The turbine drives a centrifugal-type compression impeller coupled to a shaft. [0003] exist Figure 7 In , a side sectional view of a conventional turbocharger 11 is shown. The turbocharger 11 includes an exhaust side portion 12 that extracts rotational energy from exhaust gas of the engine, and an intake side portion 13 that uses the rotational energy to compress air and sends it to the engine. [0004] The turbine impeller 14 is rotated by obtaining energy from the exhaust gas flowing in the exhaust gas inflow passage 19 . On the other side of the turbine impeller 14 of the rot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B39/00F04D29/00F04D29/056F04D29/26F04D29/28F16C17/04F16C33/74F16D1/06
CPCF04D29/266F16C2360/24F16D1/06F04D29/284F02B39/00F04D29/00
Inventor 西山利彦稻叶惠市
Owner KOMATSU LTD