Exhausting device with inlet pipe and exhaust pipe communicated with each other

Abstract

An exhausting device with an inlet pipe and an exhaust pipe communicated with each other in the technical field of internal-combustion engines. The exhausting device comprises an inlet pipe, an engine, an exhaust pipe, a compressor, a turbine, a connecting pipe, a containing chamber, a moving body and an elastic component, wherein the connecting pipe is communicated with the wall surface of the containing chamber; the moving body is mounted in the containing chamber and in seal contact with the inner wall surface of the containing chamber; a penetration pipe penetrates through the left and right two wall surfaces of the moving body; and two ends of the elastic component are respectively connected with the lower wall surface of the moving body and the lower wall surface of the containing chamber. When the engine is under the working conditions of medium and low speeds, the moving body moves upwards in the containing chamber, so that the exhaust gas recirculation rate is high, the exhaust temperature of each cylinder of the engine is low, and the performance of the integrated device is excellent; when the engine is under the high-seed working condition, the moving body moves downwards in the containing chamber, so that the exhaust gas recirculation rate is low, the dynamic property of the engine is relatively good, and the performance of the integrated device is relatively excellent. The exhausting device is rational in design, simple in structure, and suitable for an exhaust gas recirculation system with a turbosuperchager.

Description

technical field [0001] The invention relates to an exhaust gas recirculation system in the field of internal combustion engines, in particular to an exhaust device with a turbocharger connected to the intake and exhaust pipes. 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 p...

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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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