Cooling water channel sealing structure of engine cylinder head
A technology for engine cylinders and cooling water channels, which is applied to engine sealing devices, engine components, machines/engines, etc. It can solve the problems of increased difficulty in sealing seal processing, low service life, and large contact area, and solve processing difficulties , reduce the number of parts, improve the effect of product qualification rate
Active Publication Date: 2016-11-09
WUHU YONGYU AUTOCAR INDAL
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Problems solved by technology
Due to the high temperature of the cylinder head, the gasket material is usually made of rigid material, which requires a large contact area, resulting in the disadvantages of increased difficulty in processing the sealing port and low service life.
Method used
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Embodiment Construction
[0021] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.
[0022] Such as figure 1 As shown, the present invention provides an engine cylinder head cooling waterway sealing structure, including a cylinder head 1 and a pipe fitting 3 inserted in the cooling water cavity provided in the cylinder head 1 and welded to the cylinder head 1 .
[0023] Specifically, as figure 1 with figure 2 As shown, the pipe fitting 3 is a cylindrical member with open ends and a hollow interior, and the two ends of the pipe fitting 3 are welded to the cylinder head 1 . The cooling water chamber is a cavity set in the cylinder head 1 and located on the side of the intake val...
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The invention discloses a cooling water channel sealing structure of an engine cylinder head. The cooling water channel sealing structure comprises a cylinder head and a pipe fitting which is inserted into a cooling water cavity in the cylinder head and welded with the cylinder head. According to the cooling water channel sealing structure of the engine cylinder head, the problems that a sealing port of the cylinder head is difficult to process and the service life is short are solved, processing of the sealing port of the cylinder head is facilitated, smooth circulation of cooling water in the cylinder head is guaranteed to the greatest extent, flow mixing is avoided, a more uniform cooling effect is realized, and local supercooling or superheating is prevented; the production cost of the cylinder head is reduced, the product qualification ratio is increased, the number of parts is reduced, and inlet and outlet sealing surfaces are prevented from deforming.
Description
technical field [0001] The invention belongs to the technical field of engines, and in particular, the invention relates to a sealing structure for a cooling water channel of an engine cylinder head. Background technique [0002] Since the cooling water chamber of the cylinder head is a closed cavity, the engine is generally divided into two parts, the cylinder block and the cylinder head. The inlet and outlet of cooling water are generally set on the cylinder head part, so the cylinder head part of the engine needs to have the function of sealing the inlet and outlet of cooling water. [0003] At present, the most important purpose in the design and improvement of the cylinder head is to optimize the flow of cooling water and improve the fatigue strength of the structure. By optimizing the structure of the cooling water cavity, the temperature of key parts can be controlled to obtain a more uniform temperature distribution and reduce power loss, thereby improving the relia...
Claims
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Login to View More IPC IPC(8): F02F1/36F02F11/00
CPCF02F1/36F02F11/002
Inventor 郑志勋
Owner WUHU YONGYU AUTOCAR INDAL