Cylinder cover standard sample piece of engine valve clearance control system

一种发动机气门、控制系统的技术，应用在检测领域，能够解决包含缸盖等问题，达到拿取方便、样件关键尺寸长期稳定、精度高的效果

Inactive Publication Date: 2010-06-09
HARBIN HIGHTECH PRECISION GAGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The structural design of the cylinder head standard sample is faced with the following problems: the sample must be taken by the operator to zero the measurement system before starting the measurement work, and then put back. Measurement characteristics; the sample is used on the production site, requiring wear resistance, and the key dimensions of the sample are stable for a long time

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] The valve clearance refers to the distance between the base circle of the camshaft and the valve tappet, or the clearance, as shown in the attached manual figure 1 As shown, where C(E) is the exhaust valve clearance and C(I) is the intake valve clearance.

[0030]A cylinder head standard sample of an engine valve clearance control system, the right positioning pin hole base body 12 is fixed on the right side of the upper end surface of the main base body 14 through the positioning column 27, and the left positioning pin hole base body 1 is fixed on the left side of the upper end surface of the main base body 14, The exhaust side pulley journal hole base 4 is located on the side of the left positioning pin hole base 1, and the exhaust side positioning plate 2 with adjustable thickness is installed between the left positioning pin hole base 1 and ...

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PUM

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Abstract

A cylinder cover standard sample piece of an engine valve clearance control system belongs to the detection technical field. The middle part of the upper end surface of a main matrix is successively provided with a left location pinhole matrix, a right location pinhole matrix and a keel, wherein an exhaust side belt pulley shaft neck hole matrix and an exhaust side locating plate, and an air inlet side belt pulley shaft neck hole matrix and an air inlet side locating block are separately arranged on the two sides of the left location pinhole matrix, the periphery of the upper end surface of the main matrix are provided with an exhaust side positioning table No. 1, an exhaust side positioning table No. 2, an air inlet side positioning table No. 1, and air inlet side positioning table No. 2 in turn, all air inlet side components and exhaust side components are successively arranged on the two sides of the keel and fixedly arranged on the plane of the main matrix, and the lower end surface of the main matrix is provided with a bottom surface positioning body No. 1, a bottom surface positioning body No. 2, a bottom surface positioning body No. 3 and a bottom surface positioning body No. 4. The invention has the advantages that the prepared cylinder cover standard sample has high precision, light weight, wear resistance and long-term stable sample piece critical dimension, and is convenient to fetch.

Description

technical field [0001] The invention belongs to the technical field of detection, and mainly relates to a cylinder head standard sample of an engine valve clearance control system. Background technique [0002] When the automobile engine is working, metal parts such as the intake and exhaust valves of the engine are affected by the heat in the combustion chamber and cause thermal expansion. If there is no gap or too small gap between the valve and the transmission part when the engine is cold, it will The thermal expansion of the valve and transmission parts will cause the valve to be closed tightly, causing the engine to leak air during the compression and power strokes, reducing the engine power, and even difficult to start or damage parts in serious cases; on the contrary, if the valve clearance is too large, it will cause the valve It cannot be fully opened, and the intake and exhaust are not thorough, which will also reduce the engine power. In order to ensure the norm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/24F01L1/20
Inventor 袁怡宝于汶许连虎龚光国刘鸿鸣
Owner HARBIN HIGHTECH PRECISION GAGE
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