Pneumatic adjusting mechanism with penetrating pipes

Abstract

A pneumatic adjusting mechanism with penetrating pipes belongs to the technical field of machine design and comprises a gas compressor, an engine, a turbine, connecting pipes, a valve seat, a valve body, a rotating shaft, a volumetric cavity, a fixed member, the penetrating pipes, an elastic part, a partition, a rotor, and a connecting plate. One end of the rotor extends into the first penetrating pipe and in hermetic contact with the wall of the first penetrating pipe. The other end of the rotor is fixed to the partition. One end of the third connecting pipe is communicated with an engine exhaust pipe. The other end of the third connecting pipe penetrates the fixed member and is communicated with the first penetrating pipe. When the engine exhaust pipe bears high pressure, the rotor drives the valve body to rotate clockwise; the engine is high in exhaust recirculation rate and low in blasting pressure; when the engine exhaust pipe bears low pressure, the rotor drives the valve body to rotate anticlockwise; the engine is low in exhaust recirculation rate and low in oil consumption. The pneumatic adjusting mechanism with penetrating pipes is reasonable in design, simple in structure and applicable to exhaust recirculation systems in supercharged engines.

Description

technical field [0001] The invention relates to an exhaust gas recirculation system in the technical field of mechanical design, in particular to an air pressure regulating mechanism with a through pipe. 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 ...

AI Technical Summary

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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