Triaxial synchronous type variable exhaust branch reducing rate system

Abstract

The invention relates to the technical field of mechanical design and relates to a triaxial synchronous type variable exhaust branch reducing rate system comprising a volumetric cavity, an elastic member, a rotor, a partition, rotary shafts, rotary plates and a chain. The longitudinal section of the volumetric cavity is circular. The longitudinal section of the rotor is arc-shaped. One end of a third connecting shaft passes through the volumetric cavity and is embedded on the side wall of the volumetric cavity, and one end of the first rotary shaft passes through a first exhaust branch and is embedded on the side wall of the first exhaust branch. When the pressure of an intake pipe of an engine is high, the rotor drives the rotary plates to rotate anticlockwise, outlet area of the exhaust branch is large, and pumping loss of the engine is low; when the pressure of the intake pipe of the engine is low, the rotor drives the rotary plates to rotate clockwise, outlet area of the exhaust pipe is small, pulse energy can be fully utilized, and turbine inlet available energy is high. The triaxial synchronous type variable exhaust branch reducing rate system is reasonable in design, simple in structure, and applicable to a turbocharging system with one turbine inlet and a side turbine.

Description

technical field [0001] The invention relates to a turbocharger system in the technical field of mechanical design, in particular to a three-axis synchronous exhaust branch pipe shrinkage variable system. 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 superchar...

AI Technical Summary

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

Images