Reciprocating type internal-combustion engine with low fuel oil and micro discharge

Abstract

The invention discloses a reciprocating type internal-combustion engine with low fuel oil and micro discharge, which comprises a combustion cylinder, a power output cylinder, a communication cylinder and a blocker which is controlled by a blocking control mechanism and can reciprocate between the combustion cylinder and the power output cylinder so as to open and close the communication cylinder. The blocker reciprocating in the communication cylinder of the reciprocating type internal-combustion engine is used for controlling different working substances of the combustion cylinder and the power output cylinder to separately or cooperatively work. When the power output cylinder has a smallest clearance volume, fuel gas close to a highest temperature period after doing work in the combustion cylinder is put in the power output cylinder, and pure air which is compressed isothermally and compressed with a high-pressure compression ratio and is several times or even tens of times of the amount of the fuel gas in the power output cylinder is isasterically heated. The processes and the power of the ignition delay period and the rapid combustion period of the reciprocating type internal-combustion engine are similar to those of a conventional internal-combustion engine, and the thermal efficiency of the reciprocating type internal-combustion engine is improved by multiples. The reciprocating type internal-combustion engine has micro discharge, low fuel oil, large push moment and flexible working.

Description

technical field [0001] The invention belongs to the field of internal combustion engines, in particular to a reciprocating internal combustion engine with low fuel oil and little emission. Background technique [0002] 1. The traditional reciprocating diesel engine is a compression ignition internal combustion engine, the formation and combustion of the combustible mixture are carried out directly in the combustion chamber. When the piston is close to the top dead center of compression, diesel oil is injected into the cylinder, contacts and mixes with high-pressure and high-temperature air, and starts to burn after a series of physical and chemical changes. Combustion is roughly divided into four stages: 1. Delayed combustion period (ignition delay period); 2. Rapid combustion period; 3. Slow combustion period; 4. Afterburning period. [0003] 1. Ignition delay period: a period of time from the start of fuel injection to the start of ignition. The amount of fuel injected i...

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Problems solved by technology

[0005] 3. Slow combustion period: from the highest pressure to the highest temperature, generally at 10°-15°C to 20°-35°C after the top dead center of the piston, and the highest combustion temperature generally occurs at 20° after the top dead center of the piston -35℃CA, the temperature reaches the highest value of 1700-2000℃, due to the increase of the cylinder volume, the pressure in the cylinder decreases and the thermal efficiency decreases

[0015] 2. Compression ratio: When the compression ratio of a diesel engine is too large, the clearance of the combustion chamber is too small, which is not conducive to fuel atomization and combustion. At present, the compression ratio of a supercharged diesel engine is relatively low. When the compression ratio of a gasoline engine is too large, deflagration or early combustion will occur wait for abnormal combustion

Although improving the combustion conditions, lowering the maximum combustion temperature, and reducing the emission of harmful exhaust gases, the control and reduction of harmful exhaust emissions within the inherent amount of combustion products are limited, and when the limit is reached, it is difficult to reduce further, and most of them are based on Reduce the combustion temperature, sacrifice the power and economy of the internal combustion engine to reduce the emission of harmful gases

[0017] 4. Combustion temperature: Although the higher the combustion temperature, the better the thermal efficiency, but the combustion temperature is too high, the NOx emission increases, and the heat load is serious

[0023] The heat of the first cycle of the gas turbine heats up a lot of air. As mentioned above, only 20%-40% of the air participates in the combustion. The overall air-fuel of the first cycle is relatively lean, and the exhaust gas emission is small, but the combustion can never produce high expansion pressure. The thermal efficiency is low, and the installation of systems such as regenerators will make the structure complicated and the cost high

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