Turbocharging system with adjustable exhaust pipe outlet area

Abstract

The invention provides a turbocharging system with adjustable exhaust pipe outlet area, belonging to the technical field of internal combustion engines. The system comprises cylinders, an exhaust pipe, a turbine, a rotating plate, a rotating shaft and an elastic part, wherein the rotating shaft passes through the rotating plate and is fixedly connected with the rotating plate; the rotating plate is asymmetrically distributed at the upper and lower sides of the rotating shaft; the two ends of the rotating shaft are installed on the side walls of the exhaust pipe; and the rotating plate is connected with one side wall of the exhaust pipe by the elastic part. In the working process of the system, when the engine is in the high speed working condition, the rotating plate drives the rotating shaft to rotate counterclockwise, the exhaust pipe outlet area is relatively large, the pumping loss is lower and the overall performance of the engine is better; and when the engine is in the low speed working condition, the rotating plate drives the rotating shaft to rotate clockwise, the exhaust pipe outlet area is relatively small, more available energy exists in front of the turbine, the inlet pressure of the engine is higher and the overall performance of the engine is better. The system has reasonable design and simple structure and is suitable to be provided with one turbine inlet and the side turbine.

Description

technical field [0001] The invention relates to a turbocharger system in the field of internal combustion engines, in particular to a turbocharger system with an adjustable outlet area of ​​an exhaust pipe. Background technique [0002] With the development of society and the improvement of environmental protection requirements, the application of engine supercharging technology is becoming more and more extensive. Most of the engines with medium and high power adopt turbocharging technology to improve power and reduce fuel consumption. The two basic types of turbocharging systems are constant pressure supercharging system and pulse supercharging system. Constant pressure supercharging system, each cylinder shares an exhaust pipe with a large volume, the structure of the exhaust pipe system is relatively simple, the pressure in the exhaust pipe is basically kept constant, the pressure is only related to the load and speed of the engine, different cylinder numbers The superc...

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Problems solved by technology

[0003] After searching the existing technical literature, it is found that Chinese patent number ZL201020532937.0, patent name: turbocharger device with variable exhaust pipe outlet area, this patent technology provides a device with continuously variable exhaust pipe outlet area , can better take into account the high and low speed conditions of the engine; but the change of the outlet area of ​​the exhaust pipe is realized by the rotation of the rotary handle, which requires adding a special control mechanism to control the rotation of the rotary handle, so that Make the supercharging system structure more complicated

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