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Impeller calibration system and method for calibrating impeller

A calibration system and impeller technology, applied in the automotive field, can solve problems such as lack of equipment, low-speed instability, etc., and achieve the effects of easy disassembly, high reliability, and high measurement accuracy

Inactive Publication Date: 2019-10-29
SAIC GENERAL MOTORS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no such wind tunnel in China (domestic wind tunnel: unstable at low speed, does not meet our calibration needs)

Method used

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  • Impeller calibration system and method for calibrating impeller
  • Impeller calibration system and method for calibrating impeller

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Effect test

Embodiment Construction

[0020] In the following description, various parameters and components are described for different constructed embodiments, and these specific parameters and components are only examples and do not limit the embodiments of the present application.

[0021] According to an embodiment of the present invention combined with figure 1 It can be seen that the impeller calibration system includes: a fan 1 for providing a stable air flow; a wind tunnel flow channel 2 arranged downstream of the fan for guiding the air flow from the fan; The frequency converter 3 on the flow channel of the wind tunnel is used to control the air flow in the flow channel of the wind tunnel; the flow meter 4 arranged on the flow channel of the wind tunnel is used to measure the air flow in the flow channel of the wind tunnel flow rate; the straightening device 5 arranged in the flow channel of the wind tunnel is used to ensure the stability and uniformity of the flow field in the flow channel of the wind t...

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Abstract

The invention discloses an impeller calibration system and a method for calibrating an impeller. The impeller calibration system comprises: a fan used for providing stable air flow; a wind tunnel flowchannel arranged at the downstream of the fan and used for guiding the air flow from the fan; a frequency converter arranged on the wind tunnel flow channel and used for controlling the air flow in the wind tunnel flow channel; a flow meter that is arranged on the wind tunnel flow channel and used for measuring the air flow in the wind tunnel flow channel; a rectifying device arranged in the windtunnel flow channel and used for ensuring the stability and the uniformity of a flow field in the wind tunnel flow channel; a test cabin arranged in the wind tunnel flow channel and used for placinga to-be-tested impeller; a drainage section arranged at the downstream of the test cabin in the wind tunnel flow channel and used for ensuring that the flow field in the test cabin is not interfered;and a data acquisition instrument used for acquiring the frequency of the impeller. According to the impeller calibration system and the method, the impeller can be conveniently calibrated.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an impeller calibration system, especially a single impeller calibration system used for measuring equipment for air intake at the front end of a vehicle. Furthermore, the invention relates to a method for calibrating an impeller. Background technique [0002] The air intake at the front end of a car is one of the most important indicators to measure the car's cooling capacity, air-conditioning performance and improve engine efficiency, and it is also related to the aerodynamic resistance of the whole car. In the process of automobile design and development, in order to accurately measure and optimize the analysis of the front-end air intake of the whole vehicle (including 1:3 model car, 1:1 model car or prototype car), a set of high-precision front-end air intake measurement is used system. To make full use of the test equipment, it is necessary to provide a matching impeller calibr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/04G01M9/06
CPCG01M9/04G01M9/06
Inventor 陈彩龙尹章顺闫石赵亚芳贾海亮马天鹏王夫亮
Owner SAIC GENERAL MOTORS
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