Moisture-proof type filtering core supporting plate, air filter and engine of air filter

Abstract

The invention discloses a moisture-proof type filtering core supporting plate, an air filter and an engine of the air filter. The moisture-proof type filtering core supporting plate comprises a supporting plate body provided with an air outlet hole and a waste gas inlet hole. The waste gas inlet hole guides waste gas into the air outlet hole through a guide channel. The supporting plate body is further provided with a flow guiding part used for limiting the waste gas flowing out from the guide channel to be at the air outlet hole. By arranging the flow guiding part, the situation that a filtering core is wetted due to the fact that the waste gas is directly condensed on the surfaces of relatively cold parts in the air filter after flowing out from the guide channel is avoided; the filtering core of the air filter is kept dry beneficially; the passing resistance of the filtering core is small; and meanwhile, the filtering effect of the air filter and the good performance of the engine are ensured.

Description

technical field [0001] The invention relates to the field of engine gas distribution, in particular to a moisture-proof filter element support plate, an air filter and an engine thereof. Background technique [0002] The filter element support plate is generally used to set in the air filter housing to support and fix the filter element. At the same time, the exhaust gas inlet hole is set on the filter element support plate and guided to the air outlet hole through the guide channel, and the exhaust gas inlet hole is connected with the cylinder head of the engine cylinder. The purpose is to introduce the engine oil vapor in the engine into the combustion chamber for combustion treatment. However, in the prior art, when the exhaust gas enters the exhaust hole and passes through the guide channel, the oil vapor in the exhaust gas is likely to condense on the surface of the relatively cold parts inside the air filter, resulting in oil loss. Accumulation, wet the filter element,...

AI Technical Summary

Problems solved by technology

[0002] The filter element support plate is generally used to set in the air filter housing to support and fix the filter element. At the same time, the exhaust gas inlet hole is set on the filter element support plate and guided to the air outlet hole through the guide channel, and the exhaust gas inlet hole is connected with the cylinder head of the engine cylinder. The purpose is to introduce the engine oil vapor in the engine into the combustion chamber for combustion treatment. However, in the prior art, when the exhaust gas enters the exhaust hole and passes through the guide channel, the oil vapor in the exhaust gas is likely to condense on the surface of the relatively cold parts inside the air filter, resulting in oil loss. Accumulation, wet the filter element, affect the filtration effect, increase the filtration resistance, and affect the engine performance

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