Slidable cylinder cover type variable compression ratio engine

A compression ratio, engine technology, applied in engine components, engine control, machine/engine, etc., can solve problems such as poor stability, complex structure, difficult control, etc., to achieve the effect of expanding bandwidth, simple control, and improving fuel efficiency

Inactive Publication Date: 2015-02-11
梁天宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The technology that still has no breakthrough in automobile engines is the variable compression ratio technology. All the mass-produced engines in the world today are all fixed compression ratio engines. There are various solutions for variable compression ratios, but all of them have encountered unsolvable technical problems and bottlenecks. Either the structure is complex, the control is difficult and the cost is too high, or the stability is poor and mass production cannot be achieved.

Method used

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  • Slidable cylinder cover type variable compression ratio engine
  • Slidable cylinder cover type variable compression ratio engine
  • Slidable cylinder cover type variable compression ratio engine

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] The engine ECU controls the actuator to slide the slider back and forth, and the slider then drives the cylinder head to move up and down to change the compression ratio of the engine. The slider moves forward, the cylinder head goes down, and the compression ratio becomes larger. When the engine knock sensor detects knock, the ECU sends an instruction to the actuator, and the control slider moves back to reduce the compression ratio to eliminate knock. Under various working conditions, the ECU will control the actuator to use the engine with the most suitable compression Ratio, try to make the engine run under the condition of large compression ratio without knocking, which can improve fuel efficiency and reduce emission pollution. The slider is equipped with a position sensor, which sends a signal to the ECU to determine the specific position of the slider. Location.

[0023] The engine ECU will set the position of the main and auxiliary sliders according to the worki...

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Abstract

The invention provides a slidable cylinder cover type variable compression ratio engine. The slidable cylinder cover type variable compression ratio engine is characterized in that a cylinder cover which can slide up and down is arranged at the upper part of a cylinder; the cylinder is controlled to move up and down through a sliding block, so as to change the capacity of the cylinder, and as a result, the compression ratio of the engine can be changed. According to the engine, the best compression ratio is provided for various working conditions under the effect of engine ECU, thus the fuel efficiency can be effectively raised, the harmful substance can be reduced, and the purposes of energy conservation and environment protection are reached.

Description

technical field [0001] The invention is a sliding cylinder head type variable compression ratio engine, which is characterized in that there is a cylinder head that can slide up and down on the upper part of the cylinder, and the up and down movement of the cylinder head is controlled by the slider to change the cylinder volume to change the compression ratio of the engine , through the control of the engine ECU to provide the most suitable compression ratio under various working conditions, which can effectively improve fuel efficiency, reduce harmful substance emissions, and achieve the purpose of energy saving and environmental protection. Background technique [0002] The technology that still has no breakthrough in automobile engines is the variable compression ratio technology. All the mass-produced engines in the world today are all fixed compression ratio engines. There are various solutions for variable compression ratios, but they all encounter unsolvable technical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/24F02D15/04
CPCF02F1/24F02D15/04F02D2700/03
Inventor 梁天宇
Owner 梁天宇
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