Air inlet duct assembly for automobile and air inlet mechanism

Abstract

The invention discloses an air inlet duct assembly for an automobile and an air inlet mechanism, and belongs to the technical field of air inlet systems of motor vehicles. The air inlet duct assemblyfor the automobile comprises an air inlet duct shell; a first air inlet port is formed in the side wall of the air inlet duct shell; an air outlet port is formed in the bottom wall of the air inlet duct shell; an air inlet cavity is formed in the air inlet duct shell; a first separation plate and separation grids are arranged in the air inlet cavity; the first separation plate is bent inwards fromthe bottom of the air inlet port and extends upwards; the top end of the first separation partition plate and the inner wall of the air inlet duct shell form a second air inlet; the separation gridsincline inwards from the top of the air inlet port and are arranged and extend downwards; the separation grids are arranged on the outer side of the second air inlet port; and the bottom ends of the separation grids are not higher than the top end of the first separation partition plate. The air inlet duct assembly for the automobile is high in filtering and impurity removing efficiency, small inair resistance and low in energy consumption; noises is low; and the air inlet duct assembly of the air inlet mechanism and an air filter do not need to be connected through a corrugated pipe, the manufacturing cost is low, and the assembly tolerance is small.

Description

technical field [0001] The application relates to an air inlet assembly and an air intake mechanism for automobiles, belonging to the technical field of air intake systems of motor vehicles. Background technique [0002] The car needs air to continuously enter the engine during driving. In order to prevent sand and dust from entering the engine, the air intake system of the car includes a high air intake pipe, which is connected to the air filter through a bellows rubber tube. The air filter is installed on the front of the car through The rubber pipe is connected with the engine. The air entering the engine generally enters the high intake pipe first, then enters the air filter through the corrugated rubber tube, and then enters the engine after being filtered by the air filter. [0003] As an important part of the intake system, the high-position intake pipe plays the role of dust and water removal, which is equivalent to the primary filter in the intake system. The high...

AI Technical Summary

Problems solved by technology

The high-position air intake pipe in the prior art is not effective in filtering dust and rainwater or the wind resistance is too large. Moisture enters the air filter, which will cause the filter paper in the air filter to fail. Once the filter paper of the air filter is attached by rainwater, the filter paper will lose its filtration As a result, the resistance of the airflow will be increased, which will affect the intake air volume of the entire intake system, resulting in insufficient engine power, resulting in a reduction in the service life of the air filter, and thus affecting the service life of the engine.

If the air filter fails, rainwater will enter the engine through the rubber pipe, causing water to enter the engine and causing damage to the engine

[0004] When the engine of a heavy truck is running, it inhales about 20m per minute 3 -30m 3 The air, now with the development of the truck to the high-speed and heavy-duty direction, the air intake flow reaches 25m 3 / min and above heavy-duty trucks, the pre-filter device in the prior art or its simple combination can no longer meet the requirements of use

[0005] With the upgrading of light-duty vehicle National V vehicle technology, higher requirements are placed on the air intake system. The existing air intake assembly cannot meet the requirements of key performance indicators such as dust removal efficiency, water removal efficiency, and air intake resistance. Increased requirements

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