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Electric control engine with variable compression ratios and ignition positions

A technology of engine and compression ratio, which is applied in the direction of engine ignition, engine components, engine control, etc., to reduce fuel consumption, prolong service life, and improve low-speed torque

Inactive Publication Date: 2017-07-28
JINJIANG LUOSHAN YONGMING COMP SOFTWARE DEV SERVICE DEPT
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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 of different engine loads in the prior art

Method used

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  • Electric control engine with variable compression ratios and ignition positions
  • Electric control engine with variable compression ratios and ignition positions
  • Electric control engine with variable compression ratios and ignition positions

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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, 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.

[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 life of the roc...

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Abstract

The invention provides an engine with variable compression ratios. The problem about the unified compression ratio of different engine loads in the prior art is solved. The technical scheme is achieved in the manner that the engine with the variable compression ratios comprises an air cylinder head, a motor and a variable compression piston. The variable compression piston is installed at the position of a combustion chamber of the air cylinder head and is connected with the motor. Due to a vehicle-mounted ECU control motor, the compression ratio of the engine during low-load running and the compression ratio of the engine during medium-load running and high-load running are completely different, the ignition position is also changed along with different compression ratio states, and the requirement for different compression ratios and different ignition positions when different engine loads and different engine rotating speeds are adopted is met, and therefore the power and the momentum of the engine are improved by improving the combustion efficiency of fuel.

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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IPC IPC(8): F02D43/00F02D15/04
CPCF02B23/08F02B25/00F02D15/04F02D43/00F02D2200/02F02D2200/101F02D2700/03F02P13/00Y02T10/12
Inventor 庄景阳
Owner JINJIANG LUOSHAN YONGMING COMP SOFTWARE DEV SERVICE DEPT
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