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Method for controlling position of fuel injecting nozzle in engine

A technology of engine and fuel injection timing, which is applied in the direction of engine control, machine/engine, mechanical equipment, etc. It can solve the problems of uniform compression ratio and invariable fuel injection timing, so as to increase medium and high speed power, prolong service life and improve low speed The effect of torque

Inactive Publication Date: 2017-07-07
NANAN GAOJIE ELECTRONICS TECH
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  • Description
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Problems solved by technology

[0007] The present invention proposes a method for controlling the position of the fuel injector in the engine, which solves the problem in the prior art that the uniform compression ratio and fuel injection timing of different engine loads are not variable

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  • Method for controlling position of fuel injecting nozzle in engine
  • Method for controlling position of fuel injecting nozzle in engine
  • Method for controlling position of fuel injecting nozzle in engine

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Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0058]An engine with variable compression ratio and fuel injection position, which includes a variable compression ratio mechanism that can change the mechanical compression ratio, and an oil injection nozzle 810 that works synchronously with the telescopic mechanism, and enables all The above compression ratio is completely different from the compression ratio and fuel injection position when the engine is running under medium load and high load, so as to realize d...

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Abstract

The invention proposes a method for controlling the position of the fuel injection nozzle in the engine, which solves the problems in the prior art that the uniform compression ratio and fuel injection timing of different engine loads are not variable. The technical solution of the present invention is achieved as follows: a method for controlling the position of a spark plug in an engine, including: adjusting the oil supplied to the hydraulic chamber based on the different rotational speeds of the engine, adjusting the oil supplied to the hydraulic chamber to increase the oil capacity will Prompting the variable compression piston to extend or adjusting the supply to the hydraulic chamber to reduce the oil capacity will cause the variable compression piston to retract, and the extension or retraction of the variable compression piston will realize the engine oil injection position and injection timing. Variety. According to the demand of the engine for the load, the fuel injection timing can be changed to achieve the power when the load is low and the power when the load is high.

Description

technical field [0001] The invention relates to a gasoline engine, in particular to a method for controlling the position of a fuel injector in the engine. Background technique [0002] The compression ratio of the engine refers to the ratio of the stroke of the working piston in the cylinder to the combustion chamber. The higher the compression ratio, the better the combustion efficiency. However, the higher the compression ratio, the higher the knocking of the engine, and the easier it is for the cylinder and piston to knock and wear. Especially under high load conditions, the power of the engine will drop instead. [0003] As the grade of gasoline gets higher and higher, the increase of octane number is to reduce the knocking caused by the high compression ratio. However, its effect is limited. It can only be controlled at 13:1. Of course, due to the refining and manufacturing process of regional gasoline for the same engine, the compression ratio of Chuangchi Blue Sky'...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D15/02
CPCF02D15/02
Inventor 庄景阳
Owner NANAN GAOJIE ELECTRONICS TECH
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