Exhaust-controlled valve auto-rotating system

Abstract

The invention relates to the technical field of mechanical design, in particular to an exhaust-controlled valve auto-rotating system comprising a compressor, an engine, a turbine, a connecting pipe, a rotating shaft, a volumetric cavity, a fixture, penetrating pipes, an elastic part, a partition, a rotor and a connecting plate. One end of the rotor penetrates the first penetrating pipe and is in hermetic contact with the wall of the first penetrating pipe; the other end of the rotor is connected with the partition; two ends of the first connecting pipe are communicated with a compressor intake pipe and a turbine exhaust pipe, respectively. When pressure of an engine exhaust pipe is high, the rotor drives a valve block to rotate clockwise, exhaust gas recirculation rate of the engine is high, and explosion pressure of the engine is low; when the pressure of the engine exhaust pipe is low, the rotor drives the valve block to rotate anticlockwise, exhaust gas recirculation rate of the engine is low, and oil consumption of the engine is low. The exhaust-controlled valve auto-rotating system is reasonable in design and simple in structure and is suitable for an exhaust gas recycling system of a booster engine.

Description

technical field [0001] The invention relates to an exhaust gas recirculation system in the technical field of mechanical design, in particular to a valve self-rotation system controlled by exhaust gas. Background technique [0002] Harmful emissions from engines are a major source of air pollution. With the increasing importance of environmental protection, the goal of reducing harmful emissions from engines has become an important direction for engine development in the world today. With the world's consumption of petroleum products increasing year by year, international oil prices remain high, and the economy of diesel vehicles is becoming more and more prominent, which makes diesel engines occupy an increasingly important position in vehicle power. Therefore, it is the primary task of diesel engine designers to carry out research on the control methods of harmful emissions from diesel engines. Exhaust gas recirculation system is to send a small part of the exhaust gas pr...

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Problems solved by technology

[0003] After searching the existing technical literature, it is found that Chinese patent number ZL200410063439.5, patent name: electronic exhaust gas recirculation gas control device, this patent technology provides a device for controlling the exhaust gas recirculation rate of the engine, which can better Taking into account the medium and high speed conditions of the engine; but the change of the exhaust gas recirculation rate is realized through a special control structure, which makes the control system more complicated

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