Air inlet pressure adjusting type parallel connection boost system

Abstract

An air inlet pressure adjusting type parallel connection boost system belongs to the technical field of mechanical design and comprises an air compressor, an engine, a turbine, connection pipes, through pipes, a volume cavity, a movable body and a spring. The movable body is installed in the volume cavity and is in sealing contact with the inner wall of the volume cavity, a first through pipe, a second through pipe and a third through pipe all penetrate through the upper wall and the lower wall of the movable body, two ends of a first connection pipe are respectively communicated with an air inlet pipe of the engine and the left wall of the volume cavity, and the right wall of the movable body is connected with the right wall of the volume cavity through the spring. When pressure in the air inlet pipe of the engine is high, the movable body moves towards right, and two boosters can be in parallel connection to work. When pressure in the air inlet pipe of the engine is low, the movable body moves towards left, and only a first booster works. The air inlet pressure adjusting type parallel connection boost system is reasonable in design, simple in control strategies and suitable for turbine boost systems with the number of the turbines different.

Description

technical field [0001] The invention relates to a turbocharging system in the technical field of mechanical design, in particular to an intake pressure regulating parallel supercharging system capable of realizing turbochargers working in series. Background technique [0002] In the face of increasingly severe environmental and energy crises, increasing power density, reducing fuel consumption and reducing emissions have become the main directions for the development of internal combustion engines. Turbocharging is not only the most effective way to strengthen the internal combustion engine, but also achieves the purpose of reducing fuel consumption and reducing emissions at the same time, which has become an indispensable technical means of modern internal combustion engine technology. However, due to the influence of the flow characteristics of the turbocharger compressor, for the traditional single-scroll single-pressure system, the compressor can only work in a relativel...

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Problems solved by technology

[0003] After searching the existing technical literature, it is found that the Chinese patent application number is 200510025774.0, and the patent name is: large and small turbochargers series-parallel adjustable height boosting system. , can realize the series-parallel adjustment of two superchargers; but this invention has a complicated structure due to the use of multiple control valves

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