Air filter for heavy duty vehicles with air flow characteristics

Abstract

The invention belongs to the technical field of vehicle engine air cleaning and particularly relates to an air filter for a heavy vehicle according with the air flow characteristic. The air filter for the heavy vehicle according with the air flow characteristic comprises an inlet part, a coarse filter and a fine filter. The air filter is characterized in that the inlet part comprises a circular air inlet pipeline, an arc air inlet pipeline and an air inlet grid, the air inlet grid and a shell body of the coarse filter are integrally connected, a rib plate is added on the lower side, eight supporting columns are arranged on the air inlet grid, the coarse filter comprises an oil pool and a steel wire filter screen, a lower side portioning plate of the coarse filter is an arc, the radius of the arc is 55 mm-60 mm, and the fine filter comprises a fine filter first-level filter element and a fine filter second-level filter element. The outer structure of an inlet part of a traditional air filter is changed, the air filter better accords with the air flow characteristic, a corner angle is improved and better accords with an incoming flow condition, inlet zero impact is achieved, energy loss is lowered, under the premise that filtering efficiency is guaranteed, air inflow resistance is lowered, and the air inflow amount is increased.

Description

(1) Technical field [0001] The invention relates to a heavy-duty vehicle air filter conforming to air flow characteristics, which belongs to the technical field of vehicle engine air purification. (2) Background technology [0002] As my country's emission standards enter the National IV stage, the quality of filter products also needs to be improved accordingly. In view of my country's current fuel quality and air quality, the performance improvement of filter products is crucial to the realization of emission standard upgrades. [0003] The air filter is an important part of the engine intake system. Its function is to provide clean and dry air to the engine, reduce the wear of cylinders, pistons and piston rings, and promote combustion. It has a direct impact on engine power and economy. At present, most heavy-duty vehicles driving in areas with harsh environments and poor maintenance conditions will choose oil bath / dry combined air filters. [0004] The main performance...

AI Technical Summary

Problems solved by technology

[0006] In addition, in order to achieve high power output for heavy-duty trucks, the intake air volume must be increased. Therefore, the volume of air filters used in many heavy-duty trucks is generally large. Through analysis, it is found that the design of the filter product structure has not fully considered The fluid flow characteristics are only designed to achieve a certain function without being designed and developed from the overall height, resulting in unreasonable design of many internal structures of the product, resulting in large air intake resistance, resulting in a large energy loss, and the overall performance of the engine. to effectively improve, and even affect its service life in severe cases

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