axial swirl tube
An axial swirl, center tube technology, applied in the direction of fuel and air filters, can solve the problems of low pre-filter efficiency, premature engine wear, and increased vehicle maintenance costs, achieve stability and reliability, and improve assembly. Efficiency and the effect of ensuring assembly accuracy
Active Publication Date: 2017-06-13
宝鸡秦益科技开发有限公司
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Problems solved by technology
[0002] The pre-filter of the air filter of the engine air intake system manufactured with the axial swirl tube as the core component, the pre-filter efficiency of the A4 coarse ash test is about 75%, and the highest is only 89-90%, the pre-filter efficiency is low, affecting Reduce the efficiency and life of the air filter assembly, leading to early engine wear and increasing vehicle maintenance costs
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[0017] combined with figure 1 , 2 , 3, 4 describe an embodiment of the present invention.
[0018] An axial swirl tube for an air filter, consisting of a central tube 1, an outer cylinder 2 and an impeller 3, the outer wall of the lower end of the central tube 1 has a first annular step 4, and the inner wall of the upper end of the outer cylinder 2 There is a second annular step 5 on the top; the impeller 3 is inserted into the upper end of the outer cylinder 2 and sleeved on the lower end of the central tube 1, so that the upper end of the impeller 3 is against the first annular step 4, and the lower end is seated on the second annular step 5 On, ensure that the upper port of the impeller 3 is substantially flush with the upper port of the outer tube 2; the top outer wall of the central tube 1 has a first annular boss 6 and a second annular boss 7, so that the first annular boss 6 A first annular groove 8 is formed between the second annular boss 7; the height of the first ...
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An axial swirl tube for an air filter, the outer wall of the lower end of the central tube has a first annular step, the inner wall of the upper end of the outer cylinder has a second annular step, and the impeller is inserted into the upper end of the outer cylinder and sleeved on the The lower end of the central tube makes the upper end of the impeller rest on the first annular step, and the lower end seats on the second annular step; the top outer wall of the central tube has a first annular boss and a second annular boss, so that the first annular boss A first annular groove is formed between the platform and the second annular boss; the lower end of the outer cylinder is tapered, and the outer wall of the tapered middle part has a third annular boss and a fourth annular boss, so that the third annular boss A second annular groove is formed between the fourth annular boss. According to the design concept of small pipe diameter, self-positioning and easy manufacture, the present invention improves the pre-filtration efficiency by reducing the pipe diameter of the center pipe, and ensures the assembly quality by designing self-positioning steps and bosses, and the pre-filtration efficiency is high and stable.
Description
technical field [0001] The invention belongs to the technical field of engine air filters, and in particular relates to an axial swirl tube. Background technique [0002] The pre-filter of the air filter of the engine air intake system manufactured with the axial swirl tube as the core component, the pre-filter efficiency of the A4 coarse ash test is about 75%, and the highest is only 89-90%, the pre-filter efficiency is low, affecting Reduce the efficiency and life of the air filter assembly, lead to early engine wear, and increase vehicle maintenance costs. In order to improve the pre-filtration efficiency of the pre-filter, it has become an urgent task to research and improve the axial swirl tube. Contents of the invention [0003] The invention provides an axial swirl tube. According to the design concept of small tube diameter, self-positioning and easy manufacture, the pre-filtration efficiency is improved by reducing the tube diameter of the central tube, and the a...
Claims
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IPC IPC(8): F02M35/08
Inventor 张红标阎添芳郭一璇徐兴建张建王刚
Owner 宝鸡秦益科技开发有限公司