Repeated pressure boosting internal combustion engine

Abstract

The invention relates to an internal combustion engine and provides a repeated pressure boosting internal combustion engine which can separately complete an energy conversion process and is high in energy utilization efficiency, low in fuel consumption rate and high in speed, torque and power. According to the main principle of the repeated pressure boosting internal combustion engine, the suction process, the compression process, the acting process and the exhaust process are separately conducted in two air cylinders which are different in size, effective pressure in the air cylinders is increased at the time of acting through self structures, as a result, the combustion process is improved, and thermal efficiency is also improved; moreover, matched with a turbocharger, a compression air cylinder 2 can suck in more air in a high speed stage to support the combustion of fuel. The repeated pressure boosting internal combustion engine has the advantages of being simple in structure, high in thermal efficiency, wide in operation adjustable range, low in oil consumption, good in acceleration performance, sufficient in power at a low speed, and strong in power at a high speed; moreover, acting frequency is doubled, the rotating speed range is substantially expanded, and therefore vibrations are reduced; due to the supercharged effect after combustion, the combustion process is improved, the fuel can be combusted more sufficiently and thoroughly, and the emission performance is better.

Description

Technical field: [0001] The invention relates to a power machine, in particular to an internal combustion engine. Background technique: [0002] An internal combustion engine is a kind of power machinery, which is a heat engine that directly converts the heat energy released by burning fuel inside the machine into power. Internal combustion engines in a broad sense include not only reciprocating piston internal combustion engines, rotary piston engines and free piston engines, but also rotary impeller gas turbines, jet engines, etc. The internal combustion engine is most common with the reciprocating piston type. The piston-type internal combustion engine mixes fuel and air, burns it in its cylinder, and releases high-temperature and high-pressure gas. The expansion of the gas pushes the piston to do work, and then outputs the mechanical work through the crank connecting rod mechanism or other mechanisms to drive the driven machine to work. Common There are diesel engines ...

AI Technical Summary

Problems solved by technology

However, in the current internal combustion engine, all energy conversion processes are completed in one cylinder. For an internal combustion engine with a larger displacement, the faster the internal working volume of the cylinder increases when doing work, the faster the energy decays, resulting in lower fuel utilization. , the conversion rate of internal energy into mechanical energy is low, and the useless energy increases

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