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Engine air intake device, engine and air intake method

A technology of air intake device and engine, which is applied in the direction of engine control, engine components, machine/engine, etc. It can solve the problems of poor engine acceleration performance, etc., and achieve the effects of improving air supply response delay, improving acceleration performance, and short distance

Active Publication Date: 2021-08-31
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides an engine air intake device, an engine and an air intake method to solve the problems caused by the distance between the air outlet of the electronically controlled pumping device and the engine intake valve in the related art and the unavoidable delay of the supercharger. The problem of poor acceleration performance of the engine

Method used

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  • Engine air intake device, engine and air intake method

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Embodiment 1

[0033] figure 1It is a structural schematic diagram of an engine air intake device provided in this application. The engine air intake device includes a main air intake device 3, an electronic control unit 4, an intake air flow meter 5, a supplementary air flow meter 6 and an auxiliary air intake link. It is used to ventilate the engine 1. Each cylinder of the engine 1 is equipped with a cylinder intake manifold 2, and the main air intake device 3 is provided with multiple air outlets. The multiple air outlets correspond to the intake manifolds of multiple cylinders respectively. 2 is connected to the intake end of the cylinder, and the compressed air is fed into each cylinder through the cylinder intake manifold 2; the auxiliary intake link includes an air supplement solenoid valve 7, an intercooler 8, The cooling pipeline 9 and the electric compressor 10, wherein the intake flow meter 5 is electrically connected to the electronic control unit 4 and communicated with the main...

Embodiment 2

[0040] On the basis of embodiment 1:

[0041] The auxiliary air intake link also includes an air storage box 11 and an air outlet electromagnetic valve 12 communicated with the air storage box 11, the air intake end of the air storage box 11 communicates with the air outlet end of the electric compressor 10; the air outlet electromagnetic valve 12 communicates with the electronic control unit 4 is electrically connected, and its air outlet is connected with the intake end of the cooling pipeline 9. The electronic control unit 4 controls the electric compressor 10 to pass the compressed air into the air storage tank 11 for storage. When the power of the engine 1 is insufficient, the intake air volume needs to be increased At this time, the compressed air pre-stored between the supplementary air solenoid valve 7 and the electric compressor 10 and the compressed air in the air storage tank 11 are combined in the cooling pipeline 9 to provide more air intake for the engine 1 at the...

Embodiment 3

[0043] On the basis of embodiment 1:

[0044] The embodiment of the present application also provides an engine, on which the aforementioned engine intake device is installed, the compressed air pre-stored in the engine intake device can be directly aimed at the cylinder intake manifold 2 to supply air to the engine 1, and there is no Time delay, and merge with the compressed air of the existing main air intake device 3, so that the engine 1 has enough air for combustion, and the acceleration performance of the engine 1 can be improved to the greatest extent. Therefore, the engine does not need to work at full load for a long time, which reduces the possibility of overheating of the engine, thereby reducing the wear of the internal parts of the engine and prolonging the service life of the engine to a certain extent.

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Abstract

The application relates to an engine air intake device, an engine and an air intake method, and relates to the technical field of the engine, which includes a main air intake device, an electronic control unit, an intake air flow meter, a supplementary air flow meter and an auxiliary air intake link. The air device is connected with the intake manifold of the cylinder, and the auxiliary intake link includes the supplementary air solenoid valve, the intercooler, the cooling pipeline, and the electric compressor that are sequentially connected with the intake manifold of the cylinder. The air flow meter, air supply solenoid valve and electric compressor are all electrically connected to the electronic control unit; when the engine power is insufficient and the intake air volume needs to be increased, the electronic control unit opens the electric compressor and air supply solenoid valve to make the electric compressor The compressed air is directly aimed at the intake manifold of the cylinder to supply air to the engine. This air intake method has the shortest distance and the fastest time, and the auxiliary main air intake device supplies air to the engine, which can increase the actual air intake of the engine and improve the air intake caused by the main engine. The problem of poor acceleration performance caused by the intake device.

Description

technical field [0001] The present application relates to the technical field of engines, in particular to an engine intake device, an engine and an intake method. Background technique [0002] When a car is driving in a plateau area, its power will weaken with the increase of altitude. The reason is that the high altitude and low air pressure in the plateau area will reduce the intake air volume of the engine and insufficient fuel combustion, which will directly lead to a decrease in vehicle power and fuel consumption. Increase; and as the altitude increases, the air pressure gradually decreases, and the air density becomes smaller and smaller, resulting in less and less air intake of the engine and lower power performance. Among them, every 1000m increase in altitude, the atmospheric pressure drops About 11.5%, the air density is reduced by about 9%, and the car power will drop by about 10%. However, due to the decline in engine power and the decline in vehicle power perf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M35/10F02M35/16F02D41/00F02D29/02
CPCF02D29/02F02D41/0007F02D2200/04F02M35/10006F02M35/10157F02M35/10255F02M35/10268F02M35/10373F02M35/16
Inventor 戈锐张宏飞
Owner DONGFENG COMML VEHICLE CO LTD