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Heat transfer rule assaying device of modular air cylinder cover

A test device and cylinder head technology, which is applied in the field of modular cylinder head heat transfer law analysis test device, can solve problems such as high heat load of the cylinder head, and achieve the effect of less material consumption and strong operability

Active Publication Date: 2014-11-26
CHINA NORTH ENGINE INST TIANJIN
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  • Description
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Problems solved by technology

[0004] In order to solve the problem that the cylinder head bears high heat load during engine operation, the present invention provides a modular cylinder head heat transfer rule analysis test device

Method used

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  • Heat transfer rule assaying device of modular air cylinder cover

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Embodiment Construction

[0008] like figure 1 As shown, a modular cylinder head heat transfer rule analysis test device is composed of a connecting device 1, a first fixture 2, a second fixture 3, a nose bridge structure and a heat source device 7, and the nose bridge structure is composed of cooling water Cavity 4, layered thickness 5 and outer layer 6 of the nose bridge area. Both sides are positioned by the first clamp 2, and the lower end is positioned by the second clamp 3, wherein the first clamp 2 and the second clamp 3 are fixed by the connection device 1, and the heat source device 7 is arranged above the outer layer 6 of the bridge of the nose. Wherein, the thickness of the nose bridge area of ​​the cylinder head is controlled by adjusting the layered thickness 5, and the outer surface shape of the nose bridge area is obtained by adjusting the outer layer 6 of the nose bridge area. The cooling water chamber 4 passes cooling water, and the surface temperature of the outer layer 6 in the ...

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Abstract

The invention relates to a heat transfer rule assaying device of a modular air cylinder cover. A nose bridge region structure consists of a cooling water cavity (4), a layering-type thick part (5) and a nose bridge region outer layer (6), wherein the layering-type thick part (5) is arranged at the outer layer of the cooling water cavity (4); the nose bridge region outer layer (6) is arranged at the outer layer of the layering-type thick part (5); two sides of the nose bridge region structure are positioned by first fixtures (2), and the lower end of the nose bridge region structure is positioned by a second fixture (3), wherein the first fixtures (2) and the second fixture (3) are fixed by connecting devices (1); a heat source device (7) is arranged above the nose bridge region outer layer (6). The heat transfer rule assaying device has the advantages of high operability, less material consumption and the like, and can evaluate influences on temperature by structural parameter variation.

Description

technical field [0001] The invention belongs to the technical field of heat transfer analysis test methods, and in particular relates to a modular cylinder head heat transfer law analysis test device. Background technique [0002] The cylinder head is a key component of the engine. Together with the piston and the cylinder liner, it forms a closed space and is subjected to high thermal loads during engine operation. High heat load has become a key technology restricting the development of new engines. The bottleneck of breaking through this key technology lies in how to effectively evaluate the structural parameters of the cylinder head and the influence of cooling medium on heat transfer. At present, the evaluation methods of the structural parameters of the cylinder head and the influence of the cooling medium on the heat transfer mainly include the whole machine test and simulation. The whole machine test method is to design a large number of cylinder heads with differe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20
Inventor 庞铭袁晓帅谢志民胡定云
Owner CHINA NORTH ENGINE INST TIANJIN
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