CN100561113C - The quick volumetric measurement structure of engine cylinder cover chamber - Google Patents
The quick volumetric measurement structure of engine cylinder cover chamber Download PDFInfo
- Publication number
- CN100561113C CN100561113C CN 200710093025 CN200710093025A CN100561113C CN 100561113 C CN100561113 C CN 100561113C CN 200710093025 CN200710093025 CN 200710093025 CN 200710093025 A CN200710093025 A CN 200710093025A CN 100561113 C CN100561113 C CN 100561113C
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- combustion chamber
- measurement plane
- cylinder cap
- disc
- spark
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to a kind of quick volumetric measurement structure of pattern of The combustion chamber of engine, it is integrally casting moulding one measurement plane in the firing chamber of the casting blank of cylinder cover, this measurement plane is the cucurbit shape that a big or small disc is connected to form, big disc is positioned at the position of corresponding spark-plug hole, littler than spark-plug hole diameter, measurement plane exceeds bottom surface, firing chamber 0.3-0.8mm, and parallel with the cylinder cap baseplane.Big disc is used for after the cylinder cap blank is finished in casting the combustion chamber volume of blank being measured.After finishing cylinder cap processing, big disc is most of when boring spark-plug hole processedly to be fallen, and only retains little disc, is used for the combustion chamber volume of finished product is measured.The present invention can infer fast whether the The combustion chamber volume adheres to specification, and need not directly go to measure combustion chamber volume by the firing chamber measurement plane to cylinder cap baseplane distance, saves time, and enhances productivity, and reduces the cost of engine.
Description
Technical field
The present invention relates to engine technology, be specifically related to measuring technique the engine cylinder cover chamber volume.
Background technology
As everyone knows, engine combustion chamber volume is very large to the influence of engine, gasoline engine engine particularly, the homogeneity of each cylinder volume of firing chamber have influence on vibration, performance of engine etc., yet the measuring method of present cylinder cover chamber adopts mainly titrimetry to measure, the titrimetry method is at the cylinder cover complement that assembles inlet and exhaust valve and spark plug, by buret titration kerosene in the firing chamber,, draw combustion chamber volume by observing the volume of buret titration kerosene.The titrimetry measuring method is more loaded down with trivial details, and the time that needs be many, be difficult to adapt to and produce in batches.
Summary of the invention
The objective of the invention is in the present production run, combustion chamber volume is measured slow, proposes a kind of quick volumetric measurement structure of engine cylinder cover chamber, improves the speed that engine combustion chamber volume is measured, and reduces the engine production cost.
Technical scheme of the present invention is as follows:
A kind of quick volumetric measurement structure of engine cylinder cover chamber, it is integrally casting moulding one measurement plane in the firing chamber of the casting blank of cylinder cover, this measurement plane is the cucurbit shape that a big or small disc is connected to form, big disc is positioned at the position of corresponding spark-plug hole, littler than spark-plug hole diameter, measurement plane exceeds bottom surface, firing chamber 0.3-0.8mm, and parallel with the cylinder cap baseplane.
The big disc effect of described firing chamber measurement plane is in casting, improve the intensity of measurement plane on the one hand, be unlikely to occur casting flaw because measurement plane is too little, be on the other hand after finishing the blank casting, measure the distance D 1 of big disc to cylinder cap blank baseplane, and with its by with the height value contrast of design, infer whether the combustion volume of cylinder cap blank reality reaches the scope of design load, determine whether the firing chamber of blank product qualified.Because it is positioned under the spark-plug hole, diameter is littler than spark-plug hole, and after finishing cylinder cap processing, it is processedly to have fallen, and does not therefore influence the shape and the volume of The combustion chamber.
The effect of the little disc of described firing chamber measurement plane can also be continued to remain after finishing cylinder cap processing, by measuring the distance D 2 of this plane to cylinder cap baseplane, and contrast with design load, infer whether the combustion volume of cylinder cap finished product reality reaches the scope of design load, judge whether product is qualified.Because this plane is very little, to very little of the shape of firing chamber and volume influence, can be not influential to the performance of engine.
As seen, adopt this combustion chamber volume measurement plane, can be by the firing chamber measurement plane to cylinder cap baseplane distance, infer fast whether the The combustion chamber volume adheres to specification, and need not directly go to measure combustion chamber volume, this will save time greatly, enhance productivity, and reduce the cost of engine.
Description of drawings
Fig. 1 is the vertical view with cylinder cover chamber of measurement plane structure of the present invention;
Embodiment
Referring to Fig. 1, when cylinder cap designs, design volumetric measurement plane, center in The combustion chamber 1, measurement plane is connected to form a cucurbit shape by big disc 2 and roundlet face 3, big disc 2 is identical and all very little with the height that roundlet protrudes the bottom surface, firing chamber, about 0.3-0.8mm, and parallel with the cylinder cap baseplane.Big disc 2 is positioned at the position of corresponding spark-plug hole, and is littler than spark-plug hole diameter.Big disc 2 is used for after the cylinder cap blank is finished in casting the combustion chamber volume of blank being measured.After finishing cylinder cap processing, big disc 2 is most of when boring spark-plug hole processedly to be fallen, and only retains roundlet face 3, is used for the combustion chamber volume of finished product is measured, measurement plane is exerted an influence not quite to the shape and the volume of firing chamber, can ignore basically.
Claims (1)
1, the quick volumetric measurement structure of engine cylinder cover chamber, it is characterized in that integrally casting forms a measurement plane in the firing chamber of the casting blank of cylinder cover, this measurement plane is the cucurbit shape that a big or small disc is connected to form, big disc is positioned at the position of corresponding spark-plug hole, littler than spark-plug hole diameter, measurement plane exceeds bottom surface, firing chamber 0.3-0.8mm, and parallel with the cylinder cover baseplane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710093025 CN100561113C (en) | 2007-11-22 | 2007-11-22 | The quick volumetric measurement structure of engine cylinder cover chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710093025 CN100561113C (en) | 2007-11-22 | 2007-11-22 | The quick volumetric measurement structure of engine cylinder cover chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101169317A CN101169317A (en) | 2008-04-30 |
| CN100561113C true CN100561113C (en) | 2009-11-18 |
Family
ID=39390013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710093025 Expired - Fee Related CN100561113C (en) | 2007-11-22 | 2007-11-22 | The quick volumetric measurement structure of engine cylinder cover chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100561113C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829750B (en) * | 2012-08-27 | 2015-01-21 | 东风汽车公司 | Measurement method and device for detecting outline dimension of cylinder cover |
| JP5897630B2 (en) * | 2014-03-25 | 2016-03-30 | Dmg森精機株式会社 | Adjustment method of engine combustion chamber volume |
| JP5960744B2 (en) * | 2014-03-25 | 2016-08-02 | Dmg森精機株式会社 | Adjustment method of engine combustion chamber volume |
| CN113579320B (en) * | 2021-08-13 | 2022-09-13 | 安徽江淮汽车集团股份有限公司 | Online compensation machining method for cylinder cover combustion chamber |
-
2007
- 2007-11-22 CN CN 200710093025 patent/CN100561113C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| 柴油机活塞燃烧室容积检测方法. 张立中，王德民，姜涛，曹国华，赵永成.仪表技术与传感器，第3期. 2005 |
| 柴油机活塞燃烧室容积检测方法. 张立中，王德民，姜涛，曹国华，赵永成.仪表技术与传感器，第3期. 2005 * |
| 气缸盖燃烧室容积的计算机辅助测试及信息处理. 杨继昌.内燃机工程，第16卷第4期. 1995 |
| 气缸盖燃烧室容积的计算机辅助测试及信息处理. 杨继昌.内燃机工程，第16卷第4期. 1995 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101169317A (en) | 2008-04-30 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20191122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |