Intake and exhaust adjusting system with two spray pipes

Abstract

An intake and exhaust adjusting system with two spray pipes belongs to the technical field of mechanical design and comprises an air compressor, an engine, a turbine, connecting pipes, an adjusting mechanism, a rotator, penetrating pipes, a stepping motor and a rotating shaft, wherein the gas inlet and the gas outlet of the engine are respectively connected with the gas outlet of an engine gas inlet pipe and the gas inlet of an engine gas outlet pipe; the rotator is arranged in the adjusting mechanism; the penetrating pipes are arranged on the rotator; one end of the rotating shaft is connected with the stepping motor, and the other end of the rotating shaft is fixedly connected with the rotator after penetrating the lower wall surface of the adjusting mechanism. When the engine is under the low-speed working condition, the stepping motor drives the rotator to rotate so as to enable the first connecting pipe and the second connecting pipe to be communicated with each other, and the air compressor is prevented from surge; when the engine is in the high-speed working condition, the stepping motor drives the rotator to rotate so as to enable the third connecting pipe and the fourth connecting pipe to be communicated, and the fifth connecting pipe and the sixth connecting pipe can be communicated to enable the detonation pressure of the engine to be relatively low. The intake and exhaust adjusting system is reasonable in design, simple in structure and suitable for the design of an intake and exhaust system of a supercharged engine.

Description

technical field [0001] The invention relates to an engine intake and exhaust system in the technical field of mechanical design, in particular to an intake and exhaust adjustment system with double nozzles. 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...

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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