Gas pressure transmitting system for gas internal combustion engine

Abstract

The invention discloses a gas pressure transmitting system for a gas internal combustion engine, which comprises an air-fuel ratio mixer and a gas pressure transmitting unit, wherein the air-fuel ratio mixer is used for uniformly mixing air and gas; the gas inlet end of the air-fuel ratio mixer is respectively connected with the gas output ends of a gas pipe and an air pipe; the gas pressure transmitting unit is used for regulating the gas pressure; the gas output end of the air-fuel ratio mixer is connected with the gas inlet end of the gas pressure transmitting unit in a sealing manner; and the gas outlet end of the gas pressure transmitting unit is connected with a cylinder of the gas internal combustion engine. According to the invention, the exhaust emission temperature can be effectively reduced, the pressure of gas entering the cylinder can be regulated and the working condition and the operation of the gas internal combustion engine are stable; and the flow of inlet gas is controlled in a fixed proportion relation of supplied gas and air by a gas valve code controller and / or an air valve code controller, so that the mixed gas in a combustion chamber is sufficiently burnt and the heat efficiency is high.

Description

technical field [0001] The invention relates to the field of engines, in particular to a pressure transmission system of a gas internal combustion engine. Background technique [0002] Known gas engine mainly is made up of combustion chamber, gas turbine, fuel / air nozzle, igniter etc., compares with traditional piston engine, has simple structure, unit power weight ratio is light, the advantage of big output power, widely used Used in ships (mainly military warships), vehicles, engine sets, etc. With the development of internal combustion engine technology, human beings are constantly pursuing to improve the thermal efficiency of energy. A turbocharger is used, and part of the output power of the turbine is used as the power of the turbocharger. Pressurize and feed into the cylinder or combustion chamber to increase the intake pressure and increase the air density to achieve the purpose of improving thermal efficiency. However, due to the negative feedback mode of the inta...

AI Technical Summary

Problems solved by technology

However, due to the negative feedback mode of the intake pressure of the internal combustion engine with a turbocharger, the gas pressure entering the cylinder cannot be adjusted, resulting in easy fluctuations in working conditions; When the turbocharger is working, the airflow creates resistance, and the exhaust speed is slow, so the exhaust temperature is still high; moreover, the turbocharger and the mechanical components such as the intake and exhaust valves work for a long time under high temperature conditions, which are easy to wear and cause maintenance problems. Increased costs

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