Engine, bowl-shaped plug thereof and processing method of bowl-shaped plug
A processing method and bowl-shaped plug technology, which can be applied to the sealing device of the engine, engine components, machines/engines, etc., and can solve the problem of low sealing performance
Active Publication Date: 2014-08-13
WEICHAI POWER CO LTD
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Problems solved by technology
[0008] In view of the above defects, the present invention improves the structure of the existing bowl-shaped plug to solve the problem of low sealing performance after it is assembled with the plug hole
Method used
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Embodiment Construction
[0033] The core of the present invention is to provide a bowl-shaped plug, by improving the structure of the existing bowl-shaped plug to improve its sealing performance. On this basis, the present invention also provides an engine comprising the above-mentioned bowl plug.
[0034] The specific structural schematic view of the bowl-shaped plug provided by the present invention will now be described in conjunction with the accompanying drawings.
[0035] See figure 1 with figure 2 ,in, figure 1 A three-dimensional structural schematic diagram showing a specific embodiment of the bowl-shaped plug provided by the present invention, figure 2 show figure 1 The cross-sectional schematic diagram of the bowl-shaped plug shown in .
[0036] Such as figure 2 As shown, the bowl-shaped plug provided by this solution includes a bowl-shaped plug base 1 and an elastic body 22, wherein the head of the bowl-shaped plug base 1 has a first annular groove 11, and its middle has a second ...
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The invention discloses an engine, a bowl-shaped plug thereof and a processing method of the bowl-shaped plug. The bowl-shaped plug comprises a bowl-shaped plug substrate and an elastic body, wherein a first annular groove is formed in the head part of the bowl-shaped plug substrate, and a second annular groove is formed in the middle part of the bowl-shaped plug substrate; the elastic body is arranged in the second annular groove, and is provided with an annular bump projecting out of the outer peripheral wall of the bowl-shaped plug substrate. Compared with the prior art, the bowl-shaped plug with the structure has the advantages that during assembly of the bowl-shaped plug and a plug hole, burrs on the hole wall of the plug hole are removed through the edge of the first annular groove, so that the integrity of the sealing surface of a part above the bowl-shaped plug can be ensured; when the bowl-shaped plug continues to move along the axial direction, the elastic body is elastically deformed, the contact pressure between the sealing surfaces of the plug hole and the bowl-shaped plug is increased, and the elastic compensation capacity of the bowl-shaped plug is increased, so that the sealing effect of the bowl-shaped plug is improved, and the probability of water leakage and oil leakage of the engine is lowered.
Description
technical field [0001] The invention relates to the technical field of engine sealing, in particular to an engine, a bowl-shaped plug, and a processing method for the bowl-shaped plug. Background technique [0002] Bowl-shaped plug is a sealing component widely used in engines. The bowl-shaped plug has an interference fit with the plug holes of the cylinder block and cylinder head to seal water and oil. [0003] During the operation of the engine, the sealing performance of the bowl plug often fails, resulting in water and oil leakage on the sealing surface of the bowl plug and the plug hole. Obviously, this can easily lead to damage to the engine body and adversely affect its service life and performance. [0004] According to the analysis, the failure of the sealing performance of the engine bowl plug is mainly due to the following two reasons: [0005] First, there are burrs on the plug hole wall of the engine block and cylinder head, and the burr scratches the bowl plu...
Claims
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Inventor 王洋尚卫郎振华
Owner WEICHAI POWER CO LTD