Air inlet system of engine and control method of air inlet system
A technology of air intake system and engine, which is applied in the direction of engine control, combustion engine, engine components, etc., and can solve the problem of high probability of cylinder flameout
Active Publication Date: 2022-03-01
SAIC MOTOR
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Embodiment 1
[0097] In order to solve the above technical problems, the present invention provides an intake system of an engine, see figure 2 , Figure 3A and Figure 3B , including an intake manifold 1 , a deflector 2 and a plurality of cylinders 14 ; the deflector 2 includes a flexible element 21 and a baffle 23 .
[0098] The intake manifold 1 includes a main intake passage 12 and a plurality of branch intake passages 13 corresponding to a plurality of cylinders 14, one end of the main intake passage 12 communicates with the intake manifold inlet 11, and the main intake passage 12 The other end communicates with one end of a plurality of branch air intake channels 13 respectively; the other end of the branch air intake channels 13 communicates with the corresponding cylinder 14; The junction of channel 13.
[0099] The upper part of the intake manifold 1 is provided with at least one first through hole 15; one end of the first through hole 15 extends to the main intake passage 12, ...
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The invention discloses an air inlet system of an engine and a control method of the air inlet system. The air inlet system comprises an air inlet manifold, a flow guide device and a plurality of air cylinders. The flow guide device comprises a flexible element and a flow baffle; the air inlet manifold comprises a main air inlet channel and a plurality of branch air inlet channels, and the flow guiding devices are arranged at the connecting positions of at least one end of the main air inlet channel and the corresponding branch air inlet channels. At least one first through hole is formed in the upper part of the intake manifold; a first groove with a downward opening is formed in the lower part of the flexible element; the upper part of the flow baffle is embedded and fixedly connected to the first groove; when the flexible element is in a natural state, the lower part of the flow baffle penetrates through the first through hole and extends into the cavity of the intake manifold; when the flexible element is in the expansion state, the flexible element is in linkage with the flow baffle to move upwards in the direction away from the air inlet manifold from the cavity of the air inlet manifold. The invention provides an air inlet system of an engine. The air inlet system can reduce the flameout probability of an air cylinder.
Description
technical field [0001] The invention belongs to the field of automobile engines, and in particular relates to an engine intake system and a control method thereof. Background technique [0002] With the gradual tightening of emission regulations and the challenges of new energy vehicles, further improving engine fuel economy and reducing emissions have become the exploration goals of gasoline engines in the future. [0003] The Engine Downsizing technology can increase power output, and the reduction in displacement helps reduce pollutant emissions. With the increase of engine miniaturization and the reduction of the layout space of the engine compartment, the reduction of the overall size of the engine leads to the miniaturization of the intake manifold. For a multi-cylinder engine, the miniaturization of the intake manifold leads to a smaller cavity of the intake manifold, and the airflow entering from the inlet of the intake manifold lacks a buffer and directly flows int...
Claims
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IPC IPC(8): F02M35/104F02M35/112F02B31/06F02D35/02F02D33/02
CPCF02M35/104F02M35/112F02B31/06F02D35/023F02D33/02Y02T10/12
Inventor 徐政林长林张小矛陈明杨洋
Owner SAIC MOTOR