Integrated cylinder cover and production method thereof

A production method and cylinder head technology, applied to cylinder heads, cylinders, engine components, etc., can solve problems such as increasing costs, and achieve the effects of improving energy utilization and shortening the distance of flame propagation

Inactive Publication Date: 2010-06-30
重庆红旗缸盖制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This is particularly valuable for front-wheel-drive models. Of course, on the other hand, due to the difference in material prices and processing techniques, engines using aluminum alloy cylinder blocks will increase some costs.

Method used

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  • Integrated cylinder cover and production method thereof
  • Integrated cylinder cover and production method thereof
  • Integrated cylinder cover and production method thereof

Examples

Experimental program
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Embodiment 1

[0040] Such as figure 1 with figure 2 As shown, an integral cylinder head is processed by the above method, including a combustion chamber 11 , a spark plug hole 12 , an intake passage 13 and an exhaust passage 14 .

[0041] In this embodiment, 2A70 aluminum alloy is used for forging, which meets the mechanical requirements of a racing cylinder head, namely: tensile strength > 350 MPa, elongation > 10%, and hardness HB > 110. In addition, due to the forging process, the cost of the cylinder head is reduced.

Embodiment 2

[0043] Such as image 3 with Figure 4 As shown, it is also formed by the above processing, wherein the combustion chamber 21 corresponds to the combustion chamber 11 in the first embodiment, and so on, the spark plug hole 22 corresponds to 12, the intake port 23 corresponds to 13, and the exhaust port 24 corresponds to 14 corresponds. The difference from the first embodiment is that, in this embodiment, two spark plug holes 22 are designed on the combustion chamber 21 .

[0044] The design of double spark plug holes, in addition to using forging in the processing technology to reduce production costs, meets certain mechanical properties. When working with a certain structure, the combustion chamber corresponds to the two spark plug holes, and the spark plugs of the same type are installed. Simultaneous ignition of the two spark plugs speeds up the flame propagation speed in the combustion chamber, shortens the flame propagation distance, and makes the fuel mixture gas flow ...

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Abstract

The embodiment of the invention discloses a production method for an integrated cylinder cover, which includes the following steps that: aluminum alloy is selected; the aluminum alloy is forged into a blank; and an admission passage and an exhaust passage are machined on the blank. As shown in the technique scheme, since the aluminum alloy with high strength and high heat resistance is forged and machined into the cylinder cover, the cylinder cover can meet the mechanical requirements of a cylinder cover for racing cars, that is, the tensile strength is larger than 350MPa, the elongation is larger than 10 percent, and the rigidity HB is larger than 110. On the other hand, because a combustion chamber corresponds to two spark plug holes, when two spark plugs of the same type are mounted, the two spark plugs can simultaneously ignite, consequently, the transfer of flame in the combustion chamber is accelerated, the transfer distance of flame is shortened, and thereby fuel oil-mixed gas can rapidly burn in a short time and in a short distance in the combustion chamber. According to the energy conversion principle, when the mixed gas is compressed to a top dead center, the temperature of a mixer in the combustion chamber is high, so that the mixed gas can be instantly ignited and burnt out, and thereby the energy utilization rate can be greatly increased.

Description

technical field [0001] The invention relates to the technical field of auto parts manufacturing, and more specifically relates to an integral cylinder head and a production method thereof. Background technique [0002] At present, most automobile engines use all-aluminum cylinder heads, which are not very heavy. Automakers like it not only because of its light weight, but because of its better heat dissipation performance. With the development of engine technology, the four-valve structure has become the mainstream design trend of the engine. Compared with the same two-valve engine, the cylinder head with four valves per cylinder will generate more heat during operation than the cylinder head with two valves per cylinder. Using an all-aluminum cylinder head is the best solution. Due to cost considerations, the cylinder block was designed much later than the cylinder head in an all-aluminum design. The cylinder block is the heaviest part of the engine, so the use of aluminu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/42F02F1/24
Inventor 汤渝生袁熙淮李朝清刘小红王振民周麟升徐飞黄建新
Owner 重庆红旗缸盖制造有限公司
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