Stability enhancement structure of turbocharger compressor

A turbocharger and compressor technology, which is applied to machines/engines, mechanical equipment, liquid fuel engines, etc., can solve the problems of reduced compressor efficiency, compressor damage, and stable operating range restrictions, and achieves reduction of blade clearance. The effect of traffic

Inactive Publication Date: 2016-03-30
HARBIN ENG UNIV
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AI Technical Summary

Problems solved by technology

However, the stable operating range of the turbocharger compressor is limited to a certain extent. When the compressor flow rate is less than a certain value, the compressor will enter an unstable operating condition. At this time, the efficiency of the compressor will decrease rapidly. machine damage

Method used

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  • Stability enhancement structure of turbocharger compressor
  • Stability enhancement structure of turbocharger compressor
  • Stability enhancement structure of turbocharger compressor

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Embodiment Construction

[0013] Hereinafter, the present invention will be described in more detail with examples in conjunction with the accompanying drawings:

[0014] Combine Figure 1~3 , The present invention adds a tunnel structure to the compressor. The compressor used is a general turbocharger compressor, and its structure includes: a compressor casing 11, a compressor impeller 12, a main blade 13, a splitter blade 14, and a volute 15.

[0015] The characteristic structure of the present invention is that a row A pressure balance pipe 01, a row B pressure balance pipe 02, a row A air hole 03, a row B air hole 04 and a connecting pipe 05 are added to the compressor casing 11.

[0016] The pressure balance pipe 01 of row A and the pressure balance pipe 02 of row B are the first connected annular pipes, and the pressure balance pipes of row A and B are connected by 4 connecting pipes 05. In the present invention, two rows of pressure balance pipes and 4 connecting pipes 05 are used. The actual enginee...

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Abstract

The invention aims at providing a stability enhancement structure of a turbocharger compressor. The stability enhancement structure of the turbocharger compressor comprises a compressor casing and a compressor impeller; the compressor impeller is mounted in the compressor casing; a volute is arranged on the outer side of the compressor casing; a main blade and a splitter blade are mounted on the compressor impeller; an annular A-column pressure equalizing pipe and a B-column pressure equalizing pipe are arranged outside the compressor casing; the A-column pressure equalizing pipe is communicated with the B-column pressure equalizing pipe through a communicating pipe; A-column gas holes are circumferentially and evenly formed in the A-column pressure equalizing pipe, while B-column gas holes are circumferentially and evenly formed in the B-column pressure equalizing pipe; and both the A-column gas holes and the B-column gas holes extend into the compressor casing. According to the stability enhancement structure of the turbocharger compressor, the internal pressure of the compressor is enabled to be relatively even by means of a communication action of the pressure equalizing pipe, and therefore clearance leakage flow at the tops of the blades due to uneven pressure is reduced and disordered gas flows at the tops of the blades are smoothened, and the purpose of stability enhancement is achieved.

Description

Technical field [0001] The invention relates to an engine, in particular to a supercharger structure of a supercharged engine. Background technique [0002] The use of turbocharging technology can increase the power of the internal combustion engine and reduce the fuel consumption rate. Therefore, most internal combustion engines have adopted the supercharging technology. However, the stable operating range of the turbocharger compressor is limited. When the compressor flow rate is less than a certain value, the compressor enters an unstable operating condition. At this time, the compressor efficiency is rapidly reduced, and the compressor will be compressed in severe cases. The machine is damaged. For turbocharger compressors, casing bleed air is generally used to expand the compressor operating range. Summary of the invention [0003] The purpose of the present invention is to provide a turbocharger compressor expansion and stability structure that can achieve the purpose of c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/44F04D29/66
CPCF04D29/441F04D29/662F04D29/681
Inventor 王银燕孙永瑞王贺春杨传雷胡松李旭
Owner HARBIN ENG UNIV
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