Mechanical-type pipeline penetration device

Abstract

The invention discloses a mechanical-type pipeline penetration device of the technical field of mechanical design. The mechanical-type pipeline penetration device comprises an air inlet pipe, an engine, an air discharge pipe, a gas compressor, a worm wheel, a connection pipe, a containing cavity, a movable body and a spring. The connection pipe is communicated with the wall face of the containing cavity. The movable body is installed in the containing cavity and contacts the inner wall face of the containing cavity in a sealing mode. A penetration pipe penetrates through the left wall face and the right wall face of the movable body. Two ends of the spring are respectively connected with the lower wall face of the movable body and the lower wall face of the containing cavity. When the engine is in a middle-low speed working condition, the movable body moves downwards in the containing cavity, air discharge recirculation rate is quite large, discharge temperatures of all cylinders of the engine is quite low, and performance of a complete machine is quite good. When the engine is in a high speed working condition, the movable body moves upwards in the containing cavity, air discharge recirculation rate is quite small, dynamic performance of the engine is quite good, and complete machine performance is quite good. The mechanical-type pipeline penetration device is reasonable in design, simple in structure, and suitable for an air discharge recirculation system with a turbosuperchager.

Description

technical field [0001] The invention relates to an exhaust gas recirculation system in the technical field of mechanical design, in particular to a mechanical pipeline penetrating device with a turbocharger. 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 ...

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Problems solved by technology

[0003] After searching the existing technical literature, it was 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 take 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, so that the control system changes quite complicated

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