Combined water-drainage pre-filtering air intake pipe for heavy automobile

Abstract

The invention discloses a combined water-drainage pre-filtering air intake pipe for a heavy automobile. In the pipe, an inertial separator 1, a small cyclone cylinder 2 and a large cyclone cylinder 3 are combined together; an air intake grate 1.2 and a diversion screen 1.3 of the inertial separator are used for guiding water beads and dust in inlet air towards the small cyclone cylinder; the inertia of the inlet air is used for pressurizing an inlet of the small cyclone cylinder, so that the cyclone strength can be improved; by utilizing the characteristics of the small cyclone cylinder 2 such as small cyclone radius, large cyclone strength and good separation effect, the small cyclone cylinder 2 is specially used for separating dust-contained airflow sent from the inertial separator; and by utilizing the characteristic of small resistance of the large cyclone cylinder 3, most of cleaner airflow which is separated by the inertia can pass by the large cyclone cylinder 3, so as to reduce the resistance of the assembly. The perfect combination of the three elements realizes the aim that the combined water-drainage pre-filtering air intake pipe for the heavy automobile has the keys that the filter efficiency is 90% and the air inlet resistance is 1.8kPa.

Description

technical field [0001] The invention relates to an air intake system of a heavy-duty vehicle, in particular to a combined drainage pre-filter intake pipe for a heavy-duty vehicle. Background technique [0002] In order to absorb cleaner air, modern heavy-duty vehicles generally adopt high-level air intake, and there is a long intake pipe between the air intake port and the engine. This intake pipe should have many uses, but some heavy vehicles currently do not make good use of it. The overall situation is as follows: [0003] Air intake cap: add an air intake cap to the high air inlet for rain protection. This structure can only play the role of rainproof when the car is at rest. And when the car is running, the rain cap can't prevent the rain from being sucked in. Furthermore, the rainproof cap will make the intake air turn 180°, increasing the resistance of the intake air. [0004] A group of small straight-through swirl tubes: a group of about 20 to 40 small straight-...

AI Technical Summary

Problems solved by technology

So its result can only be the same as that of the cyclone intake pipe analysis

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