Turbine exhaust device with penetrating pipe

Abstract

The invention discloses a turbine exhaust device with a penetrating pipe in the technical field of internal combustion engines. The device comprises a compressor, a turbine, an engine, a connecting pipe, a volume cavity, a moving body, the penetrating pipe and an elastic part, wherein two ends of a first connecting pipe are respectively communicated with an exhaust pipe of the engine and the upper wall surface of the volume cavity; two ends of a third connecting pipe are respectively communicated with a right wall surface of the volume cavity and an air inlet pipe of the engine; and the penetrating pipe penetrates through the upper and lower walls of the moving body. In the operating process of the engine, the moving body can move left and right in the volume cavity; the pressure on the right side of the moving body is low and the moving body moves to the right side under low-speed working conditions, the first connecting pipe cannot be communicated with a second connecting pipe, the air inlet quantity of the engine is relatively increased, and the power of the engine is raised; and the pressure on the right side of the moving body is high and the moving body moves to the left side under high-speed working conditions, the first connecting pipe is communicated with the second connecting pipe, the air inlet quantity of the engine is relatively reduced, and the detonation pressure of each cylinder is reduced. The turbine exhaust device 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 exhaust system in the field of internal combustion engines, in particular to a turbo exhaust device with a through pipe for a supercharged 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 the piston m...

AI Technical Summary

Problems solved by technology

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

[0003] After searching the existing technical literature, it was found that Chinese patent number ZL200410050996.3, patent name: a variable modular pulse conversion supercharging device for a turbocharged diesel engine, the patented technology provides an exhaust device in the exhaust pipe The device with continuously variable volume can better take into account the high-speed and low-speed working 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 an additional A special 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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