Air inlet device with elastic component

Abstract

An air inlet device with an elastic component relates to the technical field of internal-combustion engines and comprises a compressor, a turbine, an engine, a connecting tube, a volumetric cavity, a movable plate and the elastic component. The cross section of the volumetric cavity is rectangular, two ends of the connecting tube are respectively connected with an air inlet tube of the engine and the left wall surface of the volumetric cavity, and the movable plate is mounted in the volumetric cavity, hermetically contacts with the inner wall surface of the volumetric cavity, and is connected with the left wall surface of the volumetric cavity via the elastic component. When the engine works, the movable plate can move left and right in the volumetric cavity; when in a low-speed working condition, the total volume of the air inlet tube at the rear of the compressor is reduced, air inlet pressure is increased, and air filling efficiency of the engine is high; and when in a high-speed working condition, the total volume of the air inlet tube at the rear of the compressor is increased, the air inlet pressure is reduced, and blasting pressure of the engine is also reduced. The air inlet device is reasonable in design, simple in structure and applicable to 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 an air intake device with elastic components 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 pis...

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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