Discharge gas recycling device with penetrating pipes

Abstract

The invention provides a discharge gas recycling device with penetrating pipes in the technical field of mechanical design. The discharge gas recycling device with the penetrating pipes comprises a gas compressor, an engine, a turbine, connecting pipes, a valve seat, a valve body, a rotating shaft, a volume cavity, a fixing body, the penetrating pipes, an elastic part, a partition plate, a rotating body and a connecting plate, wherein one end of the rotating body is inserted into the first penetrating pipe and makes sealing contact with the wall surface of the first penetrating pipe, the other end of the rotating body is fixedly connected with the partition plate, one end of the third connecting pipe is communicated with a gas inlet pipe of the engine, and the other end of the third connecting pipe is communicated with the first penetrating pipe after penetrating through the fixing body. When the pressure in the gas inlet pipe of the engine is high, the rotating body drives the valve body to rotate in the clockwise direction, and therefore the discharge gas recycling rate of the engine is high, and the detonation pressure of the engine is low. When the pressure in the gas inlet pipe of the engine is low, the rotating body drives the valve body to rotate in the anticlockwise direction, and therefore the discharge gas recycling rate of the engine is low, and the oil consumption of the engine is low. The discharge gas recycling device with the penetrating pipes is reasonable in design, simple in structure and suitable for discharge gas recycling systems of 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 exhaust gas recirculation device 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 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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