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Experimental device for rapidly evaluating performances of centrifugal compressor of exhaust gas turbocharger

A centrifugal compressor and exhaust gas turbine technology, applied in the direction of machine/engine, mechanical equipment, pump control, etc., can solve the problems affecting the progress of the compressor experiment and design, long processing cycle of the compressor, etc., to shorten the processing cycle and achieve a simple structure. , The effect of easy installation and connection

Inactive Publication Date: 2012-10-17
NO 70 INST OF CHINA NORTH IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problem that the conventional compressor processing cycle is too long and affects the progress of the compressor experiment and design, thereby proposing an experimental device for quickly evaluating the performance of the centrifugal compressor of the exhaust gas turbocharger

Method used

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  • Experimental device for rapidly evaluating performances of centrifugal compressor of exhaust gas turbocharger
  • Experimental device for rapidly evaluating performances of centrifugal compressor of exhaust gas turbocharger
  • Experimental device for rapidly evaluating performances of centrifugal compressor of exhaust gas turbocharger

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Embodiment Construction

[0057] The specific embodiment of the present invention is further described below:

[0058] An experimental device for quickly evaluating the performance of a centrifugal compressor for an exhaust gas turbocharger, consisting of an outlet pipe, a back plate (the original part of the turbocharger), a wheel cover flow surface, a volute flow channel, a basic casing and an inlet flange Two parts make up the conventional compressor volute, of which the wheel cover flow surface and the volute flow channel are the two key components;

[0059] The back plate, the wheel cover flow surface parts, the volute flow channel, the basic shell, and the inlet flange are overlapped and fixedly connected from top to bottom, and the outlet pipe is located on a wall of the basic shell; the processing of the wheel cover flow surface parts The method is turning and milling, and the material can be steel with better strength; the processing method of the volute flow channel is resin rapid prototyping...

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Abstract

The invention discloses an experimental device for rapidly evaluating the performances of a centrifugal compressor of an exhaust gas turbocharger. The experimental device comprises an outlet pipe (7), a back disc (2), a turbine cap flow plane piece (9), a spiral casing flow channel (10), a base casing (11) and an inlet flange (12), wherein the turbine cap flow plane piece (9) and the spiral casing flow channel (10) are two major key components; the outlet pipe (7) is positioned on one wall surface of the base casing (11), and the other components are sequentially and fixedly connected with one another from the upper part to the lower part in an overlapped way; the turbine cap flow plane piece (9) is made of high-strength steel material by turning or milling; the spiral casing flow channel (10) is rapidly formed by resin, with the thickness of the wall surface of the spiral casing flow channel (10) being 3 to 5 times of that of the wall surface of a conventional compressor spiral casing; and other components adopt metal pieces formed by casting and numerical control machining. The experimental device can rapidly evaluate the performances of the centrifugal compressor of the exhaust gas turbocharger, can realize the module combination of all parameters and rapid machining and changing of all components, and is short in machining period, simple in structure and convenient to install and connect.

Description

technical field [0001] The invention belongs to the technical field of turbochargers, in particular to an experimental device for quickly evaluating the performance of a centrifugal compressor of an exhaust gas turbocharger. Background technique [0002] The exhaust gas turbocharger can not only greatly improve the performance of the engine under high-speed conditions, increase power and reduce fuel consumption, but also reduce the mass per unit power, reduce the overall size, and effectively reduce emission pollution. It also has power compensation in plateau areas. [0003] In general, the compressor of the exhaust gas turbocharger is a centrifugal structure, which is composed of three parts: the compressor impeller, the diffuser and the volute. The diffuser is surrounded by the arc surface of the volute and the wall of the back plate. of. The impeller of the compressor rotates at high speed, and the fresh air is compressed under the action of centrifugal force and then e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
Inventor 李颂张继忠力杰李书奇辛鸿吴新涛
Owner NO 70 INST OF CHINA NORTH IND GRP
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