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Gasoline engine high-pressure injection device, engine and automobile

A gasoline engine and high-pressure spray nozzle technology, applied in the direction of machine/engine, combustion engine, engine control, etc., can solve problems such as unfavorable engine compartment space layout, affecting the normal operation of the engine, etc.

Active Publication Date: 2021-05-04
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It also uses the exhaust port of the engine as the air source, which may affect the normal operation of the engine
And it is necessary to introduce an intercooler to cool down the exhaust gas, which is not conducive to the spatial arrangement of the engine compartment

Method used

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  • Gasoline engine high-pressure injection device, engine and automobile

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Embodiment approach

[0024] As an embodiment of the present invention, the booster 1 is a high-pressure pump, and the gas obtained from the gas source is pressurized by the high-pressure pump, and then input into the surge tank 2 .

[0025] As another embodiment of the present invention, the air source is air treated by an air filter.

[0026] As another embodiment of the present invention, the gas source is a gas storage tank, and the gas storage tank is provided with oxygen or inert gas.

[0027] The air source is the air treated by the air filter or a separate air storage tank, which ensures the quality of the air source and avoids other problems caused by the mixing of exhaust gas in the engine and increases the emission of pollutants.

[0028] During specific work, clean air, oxygen or inert gas are directly obtained from the gas source through the connector 8, and the obtained gas enters the supercharger 1 through the low-pressure pipe 6, and the supercharger 1 pressurizes the incoming low-p...

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PUM

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Abstract

The invention discloses a device for injecting gas into a gasoline engine at high pressure, which comprises a supercharger and a voltage stabilizing box. The output port of the pressure box is connected with a plurality of high-pressure nozzles, and the plurality of high-pressure nozzles are respectively connected to the engine block. The output ports of the high-pressure nozzles extend into the engine block. The compressed gas is injected into the engine block, or the compressed gas of the high-pressure nozzle is injected into the engine block together with the engine fuel injection. It can improve fuel efficiency, reduce emission pollutants, limitedly suppress early combustion and knocking of gasoline engines, and has simple structure and stable and reliable performance. The invention also discloses an engine and an automobile.

Description

technical field [0001] The invention relates to a gasoline engine electric injection system, in particular to a device for injecting gas into a gasoline engine at high pressure, an engine and an automobile. Background technique [0002] Under the background of continuous pursuit of high fuel efficiency of gasoline engines, the compression ratio of gasoline engines is also constantly moving closer to diesel engines, from the original commonly used 10.5:1 to 10.8:1, 13:1, 14:1..., Even up to 18:1, 19:1. When the gasoline engine works under the condition of high compression ratio, the knocking problem is more prominent due to the characteristics of gasoline. Correspondingly, knocking has become the biggest obstacle restricting gasoline engines from achieving high compression ratios. In the process of realizing 14:1, we can achieve it through optimized design of pistons and exhaust systems, but in the pursuit of 18:1, or even a higher 19:1 high compression ratio working enviro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B33/00F02D41/00
CPCF02B33/00F02D41/0007
Inventor 蹇昱扬张程宋翔葛亮黄一桃
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD