High-efficiency internal combustion engine

Abstract

A high-efficiency internal combustion engine comprises a crank connecting rod mechanism, an air distribution mechanism, a fuel supply system, an ignition system, a lubricating system, a cooling system, a starting system, an air compression air cylinder and an acting air cylinder which are arranged in pairs, an air compression piston and an acting piston which correspond to each other synchronously reach an upper dead center and a lower dead center, and an air compression inlet valve and an air compression exhaust valve are arranged on a cylinder cover above the air compression air cylinder. And a working intake valve, a working exhaust valve, a spark plug or an oil nozzle are arranged on a cylinder cover above the working cylinder. Cooling fins and circulating water are arranged on the outer surface of the lower half section of the acting air cylinder, a plurality of exhaust ports are formed in the circumference of the lower half section of the acting air cylinder, the extending pipeline ends of the exhaust ports are connected to a main exhaust pipe, and compressed air of the air compression air cylinder is input into the acting air cylinder for acting. The temperature of the exhaust port is reduced, the efficiency is improved, the engine has the advantages of a four-stroke engine and a two-stroke engine, and the defects of the four-stroke engine and the two-stroke engine are abandoned.

Description

technical field [0001] The invention relates to the technical field of internal combustion engines, in particular to a high-efficiency internal combustion engine. Background technique [0002] There are two types of internal combustion engines: two-stroke and four-stroke. The four-stroke internal combustion engine completes a working cycle through four strokes of intake, compression, power, and exhaust every two-week rotation of the crankshaft. Two strokes can complete one working cycle, and the cooling system is generally air-cooled, so it is simpler in structure than a four-stroke engine. Theoretically, the power of a two-stroke engine should be twice that of a four-stroke engine. However, the intake air of a two-stroke internal combustion engine is scavenged through the crankcase, and the swept gas contains gasoline, air, and oil, resulting in insufficient combustion. ,serious pollution. Since the two-stroke internal combustion engine starts exhausting at 65-75°CA befor...

AI Technical Summary

Problems solved by technology

Theoretically, the power of a two-stroke engine should be twice that of a four-stroke engine. However, the intake air of a two-stroke internal combustion engine enters through the scavenging of the crankcase. The scavenging gas contains gasoline, air, and engine oil, resulting in insufficient combustion. ,serious pollution

Since the two-stroke internal combustion engine starts to exhaust at 65-75°CA before the bottom dead center, the effective power stroke is reduced, the thermal efficiency is lower than that of the four-stroke engine, and the fuel consumption rate is higher.

The four-stroke internal combustion engine burns fully, but the exhaust port and the intake port are set on the cylinder head, and the thermal explosion is also in this space area, causing the temperature of the exhaust pipe of the automobile to reach 800-1000°C

According to the heat engine efficiency formula: η=1-Tc / Th, Tc is the absolute temperature of the low-temperature end of the heat engine, and Th is the absolute temperature value of the high-temperature end of the heat engine; the low-end temperature Tc of the four-stroke internal combustion engine is relatively high, which affects the efficiency

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