Oil bath air filter

Abstract

The invention relates to an oil bath air filter, which comprises an air inlet pipe seat, a butterfly nut, an anti-vibration sealing ring, a shell, an upper port sealing ring, a ventilated filter element cover, an oily filter element, a filter element accommodating body and an oil baffle disc. In the oil path dust cross structure, dust absorption oil is stored in an oil storage cavity, air contacts the dust absorption oil and then enters a capillary tube of the oily filter element after being sucked, dust and solid particles in the air are subjected to secondary oil adsorption, and fine dust in the air can be adsorbed and removed; the oily filter element is a polyurethane foam sponge, has high filtering efficiency and long service life, and is convenient to clean; the shell and the air inlet pipe seat are formed by pressing modified engineering plastic which has high injection forming performance, a cavity which meets the design requirement can be conveniently formed by pressing, and air inlet resistance and anti-vibration sound absorption performance are high; and steel is replaced by the plastic, so that production efficiency is high, quality is stable, weight is light, the air inlet quality of a diesel engine is ensured and the sufficient combustion of diesel oil is better facilitated due to a dual seal structure, and the output power of the diesel engine is improved.

Description

technical field [0001] The invention relates to an air filter for a single-cylinder diesel engine. Background technique [0002] At present, the annual production and sales of single-cylinder diesel engines below 10 horsepower in my country are more than 2 million units. The air filters used in this type of diesel engines are all paper filter elements, and the outer casing is iron stamping parts. The service life of the filter element is not long and must be replaced regularly. At the same time, since the air filter is installed next to the evaporating water tank, it is easy to get damp. , The iron shell is prone to rust due to long-term moisture, and the rust is easy to block the filter element and affect the air intake. In addition, the specific weight of the iron shell is large, which is not conducive to the lightweight requirements of the whole machine. Invention content: [0003] The purpose of the present invention is to provide an oil bath air filter, which uses the ...

AI Technical Summary

Problems solved by technology

[0002] At present, the annual production and sales of single-cylinder diesel engines below 10 horsepower in my country are more than 2 million units. The air filters used in this type of diesel engines are all paper filter elements, and the outer casing is iron stamping parts. The service life of the filter element is not long and must be replaced regularly. At the same time, since the air filter is installed next to the evaporating water tank, it is easy to get damp. , The iron shell is prone to rust due to long-term moisture, and the rust is easy to block the filter element and affect the air intake. In addition, the iron shell has a large specificity, which is not conducive to the lightweight requirements of the whole machine

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