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Automobile engine cylinder head combustion chamber volume measurement method

A technology of automobile engine and volume measurement, which is applied to measurement devices, instruments, optical devices, etc., can solve the problems of measurement error and inaccurate liquid measurement, and achieve the effect of improving measurement accuracy and avoiding errors.

Inactive Publication Date: 2016-12-14
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One is the leakage of the liquid, and the other is the inaccurate measurement of the liquid, both of which will cause measurement errors, so the measurement obtained is only the approximate value of the combustion chamber

Method used

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  • Automobile engine cylinder head combustion chamber volume measurement method
  • Automobile engine cylinder head combustion chamber volume measurement method
  • Automobile engine cylinder head combustion chamber volume measurement method

Examples

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Embodiment 1

[0030] The method for measuring the volume of the combustion chamber of the cylinder head of the automobile engine provided by the present embodiment comprises the following steps:

[0031] A. Clean the combustion chamber of the cylinder head of the automobile engine, turn the cylinder head of the automobile engine upside down so that the combustion chamber faces up, install the parts connected to the combustion chamber, and seal the gaps between the components in the combustion chamber with plasticine;

[0032] The steps of the described cleaning automobile engine cylinder head combustion chamber are specifically as follows:

[0033] Clean the combustion chamber to remove carbon deposits, gels and oil stains;

[0034] The steps to complete the installation of the parts connected to the combustion chamber are as follows:

[0035] Screw the spark plug into the spark plug screw hole of the cylinder head, and tighten it according to the specified torque; install the intake valve...

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Abstract

The present invention provides an automobile engine cylinder head combustion chamber volume measurement method. The method comprises the following steps: A, cleaning an automobile engine cylinder head combustion chamber, inverting the automobile engine cylinder head, completing the installation of parts connected with the combustion chamber, and sealing the slits between the parts of the combustion chamber by using the plasticine; B, spraying a release agent at the inner surface of the combustion chamber, arranging clapboards closed at four sides at the plane of the cylinder head of the upper portion of the combustion chamber, injecting the molding into the combustion chamber, taking out an initial model after the molding is solidified; C, performing three-dimensional scanning measurement of the initial model, obtaining the point cloud data of the initial model, and inputting the point cloud data in the three-dimensional graphic software; and D, performing optimization process of the point cloud data of the initial model by employing three-dimensional graphic software, constructing the inner space model of the combustion chamber and performing the volume measurement, and obtaining the volume of the automobile engine cylinder head combustion chamber. The measurement method overcomes the defects of easy leakage and big error of the liquid in the current technology, and the operation is easy and the precision is high.

Description

technical field [0001] The invention relates to the field of structural volume measurement, in particular to a method for measuring the volume of a combustion chamber of an automobile engine cylinder head. Background technique [0002] The combustion chamber of the engine cylinder head is a device in which fuel is burned to generate high-temperature gas. It is an important part of the engine and contains pits of various shapes. The change of the volume of the combustion chamber will affect the change of the compression ratio, which in turn will affect the performance of the engine. If the cylinder head needs to be repaired, the volume of the combustion chamber will be reduced and the compression ratio will be increased after milling or grinding repair, which will affect the normal operation of the engine. Therefore, the determination of the combustion chamber volume must be carried out on the repaired cylinder head. [0003] Due to the irregular shape of the pits in the co...

Claims

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Application Information

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IPC IPC(8): G01B11/00
CPCG01B11/00
Inventor 龚运息吉伟鹏陈晨李旺珍
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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