Pipeline system capable of controlling intake pressure and exhaust pressure synchronously and mainly

Abstract

A pipeline system capable of controlling intake pressure and exhaust pressure synchronously and mainly belongs to the technical field of mechanical design, and comprises air compressors, an air intake pipe, an engine, an exhaust pipe, turbines, a volume cavity, a connecting pipe, a moving body, a spring and a penetrating pipe, wherein the moving body is mounted in the volume cavity and in sealed contact with the inner wall of the volume cavity; the penetrating pipe penetrates the upper wall and the lower wall of the moving body; and the right wall of the moving body is connected with the right wall of the volume cavity through the spring. When the engine is in a high-speed working condition, the moving body moves rightwards, a first air compressor, a second air compressor, a first turbine and a second turbine work simultaneously, so that the pumping loss of the engine is lower, and the performance of the whole engine is better; and when the engine is in a low-speed working condition, the moving body moves leftwards, only the first air compressor and the first turbine work, so that pulse energy can be utilized fully, the intake pressure of the engine is higher, and the performance of the whole engine is better. The pipeline system is designed reasonably, simple in structure, and suitable for a turbo-charging system with double turbines and double air compressors.

Description

technical field [0001] The invention relates to a turbocharging system in the technical field of mechanical design, in particular to a main-control pipeline system for synchronizing intake and exhaust pressures. Background technique [0002] With the development of society and the improvement of environmental protection requirements, the application of engine supercharging technology is becoming more and more extensive. Most of the engines with medium and high power adopt turbocharging technology to improve power and reduce fuel consumption. The two basic types of turbocharging systems are constant pressure supercharging system and pulse supercharging system. Constant-pressure supercharging system, each cylinder shares a large-volume exhaust pipe, the structure of the exhaust pipe system is relatively simple, the equivalent flow area of ​​the turbine is relatively large, the pressure in the exhaust pipe is basically kept constant, and the pressure is only related to the load...

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Problems solved by technology

[0003] After searching the existing technical literature, it is found that Chinese patent number ZL200820226936.6, patent name: a compressor parallel supercharging device for a turbocharger, this patent technology provides a device with a variable compressor shell, It can better take into account the high and low speed conditions of the engine; but the change of its housing requires a special control mechanism, which makes the structure of the booster system more complicated

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