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Variable-compression-ratio and variable-ignition-position piston

A compression ratio and piston technology, applied in spark plugs, engine ignition, internal combustion piston engines, etc., to achieve the effects of improving low-speed torque, prolonging service life, and reducing fuel consumption

Inactive Publication Date: 2018-07-31
NANAN GAOJIE ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention proposes a variable compression ratio engine, which solves the problem of uniform compression ratio and ignition position of different engine loads in the prior art

Method used

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  • Variable-compression-ratio and variable-ignition-position piston

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Embodiment Construction

[0052] 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.

[0053] An engine with variable compression ratio and ignition position, which includes a variable compression ratio mechanism that can change the mechanical compression ratio, and a spark plug that works synchronously with the expansion mechanism, and makes the compression ratio when the engine is running at low load. The compression ratio and ignition position are completely different when the engine is running under medium load and high load, and different compres...

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Abstract

The invention provides a variable-compression-ratio and variable-ignition-position piston which is characterized in that a second combustion chamber is defined by the arc surface of a variable-compression-ratio piston body; the second combustion chamber and a combustion chamber of an air cylinder head jointly apply work; a supporting column protrudes from the variable-compression-ratio piston body; and at least one spark plug seat hole is designed in the supporting column. In the state of different compression ratios, the ignition position changes along with the compression ratios, so that therequirements for different compression ratios and different ignition positions in the states of different engine loads and different engine speeds can be met, and then the engine power and impetus can be enhanced by improving the combustion efficiency of fuel oil.

Description

technical field [0001] The invention relates to a gasoline engine, in particular to an engine which can change the compression ratio and ignition position according to the engine load and rotation speed. 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 engi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D15/04F02B23/08F02B25/00F02P13/00
CPCF02B23/08F02B25/00F02D15/04F02D43/00F02D2200/02F02D2200/101F02D2700/03F02P13/00Y02T10/12
Inventor 庄景阳
Owner NANAN GAOJIE ELECTRONICS TECH
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