Gas inlet system independent type mechanical supercharged four-stroke internal combustion engine

Abstract

The invention relates to a gas inlet system independent type mechanical supercharged four-stroke internal combustion engine, belonging to the technical field of internal combustion engines. The four-stroke internal combustion engine comprises cylinders, pistons, connecting rods, gas inlet mechanisms, gas inlet valves, exhaust mechanisms, exhaust valves, connecting pipes and a crankshaft, wherein the gas inlet mechanisms and the exhaust mechanisms are mounted at the top ends of the cylinders, the two ends of the first connecting pipe are respectively connected with the first gas inlet mechanism and the fourth exhaust mechanism, and the two ends of the second connecting pipe are respectively connected with the second gas inlet mechanism and the third exhaust mechanism. During the working process, the third piston and the fourth piston can utilize the mechanical energy of the first piston and the second piston through a crankshaft-connecting rod mechanism; and by controlling the timing of the gas inlet valves and the exhaust valves, the third cylinder and the fourth cylinder can supercharge the air inhaled by the third cylinder and the fourth cylinder, and then the first cylinder and the second cylinder can inhale more air, thus the effective power of the engine is improved. The four-stroke internal combustion engine disclosed by the invention has the advantages of reasonable design and simple structure, and is suitable for mechanical supercharging devices of four-stroke engines..

Description

Technical field [0001] The invention relates to a supercharging device in the technical field of internal combustion engines, in particular to an independent mechanical supercharged four-stroke internal combustion engine for the intake system of a four-stroke engine. Background technique [0002] With the development of modern society, people have higher and higher requirements for engine power and economy. In the case of a certain displacement, if you want to increase the output power of the engine, the most effective way is to provide more fuel for combustion. It is easy to provide more fuel to the cylinder through the fuel injector, but it is not so easy to provide the air volume matching the increased fuel volume at the same time; the fuel is burned under the premise of insufficient air volume. The effect is poor. When the fuel injection volume is constant and the cylinder intake volume is larger, the combustion is better, and fuel consumption and emissions are lower. The ...

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Problems solved by technology

However, the transient performance of the existing exhaust gas turbocharging system is poor

[0003] After searching the existing technical documents, it was found that Chinese patent application number 200610008721.2, patent name: a patent for the invention of a mechanical supercharging device and its realization method, the patented technology provides a mechanical supercharging device, which is driven by a crankshaft Compressor is used to boost the engine; however, this technology cannot better solve the problem of crankshaft force balance of one-cylinder or two-cylinder engines, nor can it realize the adjustment of the engine intake system

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