Double-shaft synchronous control mechanism for exhaust pipe throat area

Abstract

The invention belongs to the technical field of mechanical design and discloses a double-shaft synchronous control mechanism for an exhaust pipe throat area. The double-shaft synchronous control mechanism for the exhaust pipe throat area comprises a volume chamber, an elastic component, a rotating body, a separation plate, rotating shafts, a rotating plate and a chain; the longitudinal section of the volume chamber is in an annular shape; the longitudinal section of the rotating body is in an arc shape; an exhaust pipe is a round pipe with uniform sections; one end of a second rotating shaft penetrate the exhaust pipe to be embedded on the side wall of the exhaust pipe; the rotating plate which is arranged inside the exhaust pipe is fixedly connected into a whole with the second rotating shaft. When the pressure of an air inlet pipe of an engine is high, the rotating body drives the rotating plate to rotate in an anticlockwise mode, the exhaust pipe throat area is large relatively, and the engine pumping loss is small. When the pressure of the air inlet pipe of the engine is low, the rotating body drives the rotating plate to rotate in a clockwise mode, the exhaust pipe throat area is small relatively, the pulse energy can be fully utilized, and the available energy before a turbine is large. The double-shaft synchronous control mechanism for the exhaust pipe throat area is reasonable in design, simple in structure and suitable for a turbocharging system which is provided with one turbine inlet and the side turbine.

Description

technical field [0001] The invention relates to a turbocharging system in the technical field of mechanical design, in particular to a two-axis synchronous exhaust pipe throat area control mechanism. 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...

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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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