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Variable Compression Ratio Mechanism for Ring Gear Adjustable Internal Combustion Engine

An internal combustion engine, regulating technology, applied in the direction of machine/engine, electromechanical device, mechanical control, etc., can solve problems such as affecting vehicle sales, reducing vehicle adaptability, etc., to achieve compact structure, rational use of installation space, and small installation space.

Active Publication Date: 2018-05-08
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the engine with high compression ratio needs to use higher-grade fuel, which will reduce the adaptability of the car in remote places and affect the sales of the car.

Method used

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  • Variable Compression Ratio Mechanism for Ring Gear Adjustable Internal Combustion Engine
  • Variable Compression Ratio Mechanism for Ring Gear Adjustable Internal Combustion Engine
  • Variable Compression Ratio Mechanism for Ring Gear Adjustable Internal Combustion Engine

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Embodiment Construction

[0050] The present invention is described in detail below in conjunction with accompanying drawing:

[0051] Such as figure 1 and figure 2 Shown: The internal teeth of belt 1 are respectively driven by belt gear I10 and belt gear II40, the number of teeth of belt gear I10 and belt gear II40 is the same, the speed of belt gear I10 and belt gear II40 are the same, the direction of rotation is the same, crankshaft group A and phase adjustment group C Same revs, same steering.

[0052] The inner teeth of ring gear 3 mesh with gear I6 and gear II8 respectively, and the outer teeth of ring gear 3 mesh with gear III32. The phase rotation angle of ring gear 3 is adjusted through gear III32, thereby changing the phase rotation angle of gear I6.

[0053] The positioning table 2 is processed on the engine body, and together with the connecting rod, it plays an axial positioning role for the ring gear 3 .

[0054] Such as Figure 3 to Figure 12 Shown:

[0055] The snap ring I4 is fi...

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Abstract

The invention relates to a gear ring adjustable internal combustion engine variable compression ratio mechanism, and belongs to the technical field of engines. The mechanism is characterized in that a positioning table is fixedly connected to the left side of the upper part of a gear ring; a belt gear wheel I of a crankshaft group is connected with a belt gear wheel II of a phase adjustment group through a belt; a gear I and a gear II of the crankshaft group are meshed with the internal tooth of the gear ring; a gear III of a revolving speed synchronization group is meshed with the external tooth of the gear ring; a helical gear I of the revolving speed synchronization group is meshed with a helical gear II of the phase adjustment group. According to the mechanism, continuous compression ratio variation of the internal combustion engine can be realized; besides, the structure is compact, the installation space is small, and moreover, with the utilization of the timing belt space and the balance shaft space of the internal combustion engine for arrangement, the installation space is reasonably utilized.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a variable compression ratio mechanism of a ring gear adjustable internal combustion engine. Background technique [0002] The compression ratio determines the pressure of the compressed gas mixture in the gasoline engine, and the combustion characteristics of gasoline cause the gas mixture pressure of the gasoline engine to not be too high. If the pressure in the cylinder exceeds a critical value, the gasoline will be ignited due to compression before it is ignited. This phenomenon is called deflagration, and it will cause knocking, which will cause great damage to the engine. For the supercharged engines widely used now, when the turbocharger is involved, the temperature and pressure of the combustion chamber will increase significantly. If this value is too high, knocking will be inevitable. This can cause massive damage to the engine, as well as affect power outp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B75/04F02D15/04H02K37/24
CPCF02B75/047F02D15/04F02D2700/03H02K37/24
Inventor 解方喜杨文海洪伟姚卓彤戴志尧代春雨杨海洋赵玉祥黄震康尔凝苏岩姜北平李小平郭淑芳
Owner JILIN UNIV
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