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Cylinder head for variable compression ratios

A technology of cylinder head and compression ratio, which is applied in the field of gasoline engines to achieve the effects of reducing fuel consumption, prolonging service life and improving low-speed torque

Inactive Publication Date: 2017-06-13
NANAN GAOJIE ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

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

Method used

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  • Cylinder head for variable compression ratios
  • Cylinder head for variable compression ratios
  • Cylinder head for variable compression ratios

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Embodiment Construction

[0055] 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 of the embodiments of the present invention, not all of them. 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.

[0056] A variable compression ratio engine, which includes a variable compression ratio mechanism capable of changing the mechanical compression ratio, and makes the compression ratio when the engine operates at a low load completely different from the compression ratios when the engine operates at a medium load and at a high load, realizing To meet different compression ratios at different engine loads and different engine speeds. Thus, the service l...

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Abstract

The invention proposes a variable compression ratio engine, which solves the problem of uniform compression ratio with different engine loads in the prior art. The technical solution of the present invention is achieved as follows: a variable compression ratio engine, which includes a variable compression ratio mechanism capable of changing the mechanical compression ratio, and makes the compression ratio of the engine when the engine is running at a low load and the middle load and high engine load The compression ratio is completely different when the load is running, so that different compression ratios and ignition times can be achieved when different engine loads and different engine speeds are met. Thereby, the power and power of the engine are improved.

Description

technical field [0001] The present invention relates to a gasoline engine, in particular to an engine whose compression ratio can be changed according to 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 gasoline in the same region, the compression ratio of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/24F02B75/04F02D15/04
CPCF02F1/24F02B75/041F02B75/044F02D15/04F02D2700/03
Inventor 庄景阳
Owner NANAN GAOJIE ELECTRONICS TECH
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