Valve oil seal
A valve oil seal and rubber body technology, which is applied in the direction of lift valves, engine components, machines/engines, etc., can solve problems such as large oil flow, carbon deposits in valves, and difficult installation of oil seals, so as to reduce oil flow, reduce oil consumption, and improve The effect of tightness
Inactive Publication Date: 2013-04-24
重庆亚源汽车配件有限公司
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Problems solved by technology
The existing valve oil seal structure includes a main sealing lip, a spring and a skeleton, and a rubber body is connected to the side wall of the skeleton facing the conduit, wherein the lip of the main sealing lip is usually an arc with a radius of 0.5 mm, which makes the main sealing lip The arc contact between the lip and the valve guide rod leads to excessive oil flow, which increases the oil consumption on the one hand, and reduces the sealing effect of the valve on the other hand. Poor sealing of the valve will easily cause oil burning and carbon deposits on the valve.
Secondly, the contact between the rubber body and the conduit is a linear contact, and it is difficult to install the oil seal
Method used
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[0010] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0011] Such as figure 1 As shown, a valve oil seal shown in the present invention includes a skeleton 1, a rubber body 2 is arranged on the inner surface of the skeleton 1, the upper part of the rubber body 2 is a sealing main lip 3, and a ring is arranged on the inner wall of the rubber body 2 shaped convex rib 4, and a locking ring 5 is provided on the annular groove outside the sealing main lip 3. In the existing technology of the valve oil seal, the arrangement of the convex rib 4 and the locking ring 5 is added to improve the sealing performance of the valve throttle and reduce the oil consumption.
[0012] The above descriptions are only preferred embodiments of the present invention, and are not intended to ...
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The invention relates to the field of mechanical sealing devices, in particular to a valve oil seal which can improve valve oil seal sealing performance and reduce oil consumption loss. The technical scheme is that the valve oil seal comprises a frame and a rubber body. The rubber body is arranged on the surface inside the frame, the upper portion of the rubber body is a sealing main lip, and ring protruding ribs are arranged on an inner wall of the rubber body. Furthermore, a sealing ring is arranged outside the sealing main lip. The valve oil seal has the advantage that the ring protruding ribs are arranged on the inner wall of the rubber body, a locking ring is arranged on an annular groove outside the sealing main lip, the valve oil seal sealing performance can be improved, engine oil flow is effectively reduced, and engine oil consumption is reduced.
Description
technical field [0001] The invention relates to the field of mechanical sealing devices, in particular to a valve oil seal. Background technique [0002] The valve oil seal is used to seal the engine valve guide rod, preventing lubricating oil from entering the combustion chamber and reducing engine performance. The existing valve oil seal structure includes a main sealing lip, a spring and a skeleton, and a rubber body is connected to the side wall of the skeleton facing the conduit, wherein the lip of the main sealing lip is usually an arc with a radius of 0.5 mm, which makes the main sealing lip The arc contact between the lip and the valve guide rod leads to excessive oil flow, which increases the oil consumption on the one hand, and reduces the valve sealing effect on the other hand. Poor valve sealing will easily cause oil burning and carbon deposits on the valve. Secondly, the contact between the rubber body and the conduit is a linear contact, and it is difficult to...
Claims
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Inventor 杨文飞杨文雄
Owner 重庆亚源汽车配件有限公司