Method, device and system for optimizing exhaust back pressure of internal combustion engine

Abstract

The invention provides a method for optimizing exhaust back pressure of an internal combustion engine. The method comprises arranging a damping component in an exhaust passage of the internal combustion engine, and enabling tail gas exhausted out of the internal combustion engine to pass the damping component; and enabling the tail gas to be cooled before passing the damping component, or enabling the tail gas to be cooled while passing the damping component. Through the method, the internal combustion engine has the high exhaust back pressure when in a low load, and the exhaust back pressure does not rise too quickly when the internal combustion engine is in a high load. The invention further provides a device and system for optimizing the exhaust back pressure of the internal combustion engine.

Description

technical field [0001] The invention belongs to the technical field of efficiency enhancement of internal combustion engines, and relates to a method for optimizing exhaust back pressure of internal combustion engines. The invention also relates to devices and systems for optimizing the exhaust back pressure of an internal combustion engine. Background technique [0002] Since the beginning of this century, the world's oil resources shortage and environmental pollution problems have become increasingly prominent, and the economy and exhaust cleanliness of internal combustion engines need to be further improved. The energy efficiency of internal combustion engines, that is, the fuel utilization rate needs to be further improved, which is the basis and premise for all facilities and equipment powered by internal combustion engines to improve energy efficiency. [0003] At present, the main way to increase the energy efficiency of the internal combustion engine is to improve t...

AI Technical Summary

Problems solved by technology

But the disadvantage is that the acceleration performance of the internal combustion engine is limited due to the sensitivity of the internal combustion engine to the exhaust back pressure

Therefore, after installing the internal combustion engine exhaust treatment devices and equipment such as noise reduction, purification and even waste heat recovery, the back pressure of the internal combustion engine exhaust is greatly increased, the energy efficiency of the internal combustion engine is reduced, and the energy consumption is increased.

The increase in energy consumption of internal combustion engines means that more fossil fuels need to be consumed, resulting in more pollution, which in turn greatly reduces the effect of the previous environmental protection and energy-saving measures.

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