Negative pressure adjusting device for inlet of compressor with variable diameter

An adjustment device and compressor technology, applied in the field of machinery, can solve problems such as low control accuracy and clumsy adjustment method of imported negative pressure, and achieve the effect of reducing air intake resistance and eliminating adverse effects

Active Publication Date: 2012-12-26
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a variable-diameter compressor inlet negative pressure adjustable device to

Method used

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  • Negative pressure adjusting device for inlet of compressor with variable diameter
  • Negative pressure adjusting device for inlet of compressor with variable diameter
  • Negative pressure adjusting device for inlet of compressor with variable diameter

Examples

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Example Embodiment

[0021] The following are specific examples of the present invention, and the implementation of the present invention will be further described with reference to the accompanying drawings.

[0022] Such as figure 1 As shown, the present invention is mainly composed of a fixed frame 1, a blade 2 and a manipulation device 3.

[0023] Such as figure 2 As shown, the fixed frame is a groove-shaped frame with a hollow aperture in the center. In this embodiment, the outer diameter of the fixed frame is 84 mm, the inner diameter is 40 mm, and the frame wall thickness is 3 mm. From the hole diameter to the inside of the groove on the outer edge of the fixed frame, 6 sets of blade shaft positioning holes 4 and toggle shaft guide grooves 5 are drilled radially. The six blade shaft positioning holes are evenly distributed on the center of the fixed frame. On a circle with a diameter of 48mm, the diameter of each positioning hole is 2.02mm. The guide groove is a fan ring, the diameter of the ...

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Abstract

The invention relates to a negative pressure adjusting device for an inlet of a compressor with a variable diameter, which is especially applicable to a compressor performance testing platform of a vehicular turbocharger, belonging to a machinery technical field. The negative pressure adjusting device comprises a fixing frame, a plurality of blades and an operation device; the blades are aligned according to the clockwise order, so that the peak end of every blade is pressed on the former one blade, blade rotating shafts are correspondingly inserted to blade rotating shaft positioning holes on the fixing frame one by one; so that all the blades are aligned in a fixing frame groove in a staggering manner. Stirring shafts on the operation disk are respectively crossed through the through grooves on the corresponding blades, and then the end parts of the stirring shafts are inserted to stirring shaft guide grooves of the fixing frame. With the adoption of the negative pressure adjusting device, the section of a through flow at the compressor inlet is conveniently and quickly changed, and therefore, the inlet negative pressure of the compressor is adjusted; the regular shape of the through flow face and the symmetry related to the pipeline center can be guaranteed, the air inlet resistance is reduced, and the bad influence on the test by the irregular shape of the air inlet is eliminated.

Description

technical field [0001] The invention relates to a variable-diameter compressor inlet negative pressure regulating device, which is especially suitable for a performance test bench of a turbocharger compressor for vehicles, and belongs to the field of mechanical technology. Background technique [0002] Due to the various advantages of turbochargers, most diesel engines and some gasoline engines currently use exhaust gas turbocharging technology. In order to ensure the reliability, safety and efficiency of the supercharger for vehicles during the supercharging process, the performance inspection of the supercharger before installation and operation is particularly important. The performance test of automotive turbocharger mainly includes two aspects: turbine performance test and compressor performance test. In the performance test of the compressor, the influence of the negative pressure at the inlet of the compressor on the performance of the compressor itself is an importa...

Claims

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Application Information

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IPC IPC(8): F04D27/00
Inventor 张虹王云龙冯志学鲍捷
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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