Square tube device with chain

Abstract

The invention discloses a square tube device with a chain. The square tube device comprises capacity cavities, a rotating body, a clapboard, a rotating shaft, a rotating plate and the chain, wherein the longitudinal section of the capacity cavity is annular; the longitudinal section of the rotating body is arc; an exhaust pipe is a round pipe with a uniform section; one end of a first connecting pipe is communicated with the capacity cavity on the right of the clapboard and the other end is communicated with an air-inlet pipe of an engine; the two ends of a second connecting pipe are respectively communicated with the capacity cavity on the left of the clapboard and the exhaust pipe. When the pressure of the air-inlet pipe of the engine is higher than that in the exhaust pipe, the rotating body drives the rotating plate to rotate counterclockwise, and the area of the throat of the exhaust pipe is relatively large; when the pressure of the air-inlet pipe of the engine is lower than that in the exhaust pipe, the rotating body drives the rotating plate to rotate clockwise, and the area of the throat of the exhaust pipe is relatively small. The square tube device is reasonable in design, simple in structure and applicable to a turbo-charging system with one turbine inlet and a turbine which is laterally arranged.

Description

technical field [0001] The invention relates to a turbocharging system in the technical field of mechanical design, in particular to a square tube device with a chain. 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 supercharging system of the diesel engine can...

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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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