Turbocharging system with exhaust pipe with variable volume

Abstract

The invention discloses a turbocharging system with an exhaust pipe with a variable volume in the technical field of internal-combustion engines. The turbocharging system comprises air cylinders, the exhaust pipe, a turbine, elbow pipes, a connection pipe, baffle plate rings, movement plates, partition plates and elastic parts; the tail part of the exhaust pipe is connected with the connection pipe through the elbow pipes; the baffle plate rings, the movement plates, the partition plates and the elastic parts are arranged in the connection pipe; and the elastic parts are arranged between the movement plates and the partition plates. When an engine is in a low-speed working condition, the movement plates move toward the baffle plate rings, the volume of the exhaust pipe is relatively small, pulse energy can be fully utilized, the inlet pressure of the engine is very high and the whole engine has excellent performance; and when the engine is in a high-speed working condition, the movement plates can move far away from the baffle plate rings, the volume of the exhaust pipe is relatively large, pumping loss is low, and the whole engine has good performance. The turbocharging system has a reasonable design and a simple structure, and the invention is suitable for the turbocharging system which is provided with two turbine inlets and of which the middle part is provided with the 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 self-variable exhaust pipe volume. 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 syste...

AI Technical Summary

Problems solved by technology

[0003] After searching the existing technical literature, it was found that Chinese patent number ZL200410050996., patent name: a variable modular pulse conversion supercharging device for a turbocharged diesel engine, the patent technology provides a continuously variable volume of the exhaust pipe The device can better take into account the high and low speed conditions of the engine; but the change of the volume of the exhaust pipe is realized by moving the moving rod up and down, which requires adding a special control mechanism to control the movement of the moving rod , so that the supercharging system structure becomes more complicated

Images