Variable compression ratio and variable air distributing phase

A technology of gas distribution phase and compression ratio, applied in electrical control, fuel injection control, engine control and other directions, can solve the problems of unstable automatic speed control of automobiles, increase equipment, manual operation, etc., to achieve no mechanical wear and reduce starting resistance. , the effect of reducing friction loss

Inactive Publication Date: 2004-09-22
边永安
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that this device has been added, the braking force is small, and the automatic control of the stable vehicle speed cannot be performed.
The decompression device is used on a single-cylinder X195 diesel engine. The disadvantage is manual operation, which increases the equipment

Method used

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  • Variable compression ratio and variable air distributing phase
  • Variable compression ratio and variable air distributing phase

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] figure 1 It is a schematic diagram of variable variable compression ratio and variable valve timing of the present invention: while the engine is working, the microcomputer 1 controls various control data of the stable speed or load of the engine according to the acceleration position sensor 14; various command control data; engine Speed ​​and crankshaft position sensor 7 measures data of engine speed, top dead center position and crankshaft angle; intake pipe pressure sensor 3 measures data of air pressure, and air flow sensor can also be used; air temperature sensor 2 measures data of intake air temperature; cooling water The temperature sensor 5 measures the data of the cooling temperature of the engine; the knock sensor 4 measures the data of whether knocking occurs; the altitude sensor 6 measures the data of the air density in the area; the ...

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Abstract

A microcomputer controlled variable compression ratio and variable air distribution phase is disclosed, and can increase the thermal efficiency, volume efficiency and mechanical efficiency of engine, save fuel, decrease the preheat time and prevent overhigh cooling temp. and decrease the abrasion of brake. The acceleration position sensor and other sensors output the electric signals to the microcomputer for controlling the controllers of air inlet and outlet valves. When corking conditions of 4-stroke engine change, the air inlet and outlet valves can be controlled at correct positions of crankshaft.

Description

technical field [0001] The invention relates to a microcomputer-controlled variable variable compression ratio and variable valve timing of a four-stroke engine. Background technique [0002] At present, the control technology of the microcomputer to the four-stroke engine (hereinafter referred to as the engine) develops rapidly. People's Communications Publishing House published in June 1982 the 51 pages of a book on fuel-saving knowledge of automobiles, revealing that for variable compression ratio engines, one way to change the compression ratio is to change the piston stroke; the second way is to change the volume of the combustion chamber. And it can be large or small at any time, but it has not been put into practical use for decades, because the structure is complex and the process requirements are high. [0003] Chinese patent specification 94108814 discloses the working method of the microcomputer-controlled AC hydraulic variable valve timin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/26
Inventor 边永安
Owner 边永安
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