Synchronous double-moving-body moving device

Abstract

The invention relates to a synchronous double-moving-body moving device in the technical field of internal-combustion engines, which comprises a gas-inlet pipe, a gas compressor, an engine, a gas-discharging pipe, a turbine, a volume cavity, a connecting pipe, moving bodies, a moving plate and a spring, wherein one end of one moving body extends into a first connecting pipe, the other end of the moving body and the left wall surface of the moving plate are fixedly connected into a whole, and the right wall surface of the moving plate is connected with the right wall surface of the volume cavity through the spring. When the engine is under a low-speed working condition, the moving plate moves towards a direction which is close to the left wall surface of the volume cavity, so that the volume of the gas-discharging pipe is relatively smaller, pulse energy can be fully utilized, the gas-inlet pressure of the engine is higher, and the overall performance of the engine is more excellent; and when the engine is under a high-speed working condition, the moving plate moves towards a direction which is close to the right wall surface of the volume cavity, so that the volume of the gas-discharging pipe is relatively larger, pumping loss is smaller, and the overall performance of the engine is more excellent. The synchronous double-moving-body moving device has a reasonable design and a simple structure and is applicable to turbo-charging systems with single turbine inlets.

Description

technical field [0001] The invention relates to a turbocharging system in the field of internal combustion engines, in particular to a synchronous moving device for double moving bodies. 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 th...

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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

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