Supercharged engine air inlet pipe deflating system

Abstract

The invention discloses a supercharged engine air inlet pipe deflating system in the technical field of internal combustion engines. The system comprises a compressor, a turbine, an engine, connecting pipes, a volume cavity, a moving body and an elastic part, wherein two ends of a first connecting pipe are respectively communicated with an engine air inlet pipe and a volume cavity left wall surface; two ends of a second connecting pipe are respectively communicated with an engine exhaust pipe and the volume cavity left wall surface; the moving body is arranged in the volume cavity and connected with a volume cavity lower wall surface through the elastic part. In the operating process, the moving body can move up and down in the volume cavity; the moving body moves upwards under low-speed working conditions of the engine, air compressed by the compressor totally enters the engine, the air inlet quantity of the engine is relatively increased, and a relative good combustion effect is achieved in each cylinder; and the moving body moves downwards under high-speed working conditions of the engine, part of air compressed by the compressor enters a turbine air outlet pipe, the air inlet quantity of the engine is relatively reduced, and the detonation pressure of each cylinder is reduced. The supercharged engine air inlet pipe deflating system is reasonable in design, simple in structure and suitable for a turbocharging system of the engine.

Description

technical field [0001] The invention relates to an air intake system in the field of internal combustion engines, in particular to a supercharged engine intake pipe discharge system of a turbocharged engine. Background technique [0002] With the development of modern society, people have higher and higher requirements on the power and economy of the engine. In the case of a certain displacement, the most effective way to increase the output power of the engine is to provide more fuel for combustion. It is easy to provide more fuel to the cylinder through the injector, but it is not so easy to provide the amount of air to match the increased amount of fuel at the same time; The effect is poor. When the fuel injection volume is constant and the cylinder air intake volume is large, the combustion is better, and the fuel consumption and emissions are lower. The traditional naturally aspirated engine completely relies on the vacuum formed in the cylinder to inhale air when th...

AI Technical Summary

Problems solved by technology

However, the existing turbocharging systems cannot take into account the high and low speed conditions of the engine well.

[0003] After searching the existing technical literature, it is found that Chinese patent number ZL200410050996.3, patent name: a variable modular pulse conversion supercharging device for a turbocharged diesel engine, this patent technology provides an exhaust pipe in the exhaust pipe The device with continuously variable volume can better take into account the high and low speed conditions of the engine; but the change of the exhaust volume in the exhaust pipe is realized by moving the moving rod up and down, which requires adding a special The control mechanism is used to control the movement of the moving rod, so that the structure of the booster system becomes more complicated, and the sealing of the exhaust pipe system is also poor under high temperature conditions

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