Fuel gas inlet device of fuel gas engine and air inlet method thereof

Abstract

The invention discloses a fuel gas inlet device of a fuel gas engine. The fuel gas inlet device of the fuel gas engine comprises a single-cylinder fuel gas timing and quantitative control device, a fuel gas total pipe and a fuel gas butterfly valve, the single-cylinder fuel gas timing and quantitative control device is connected with the fuel gas total pipe through a fuel gas transition connecting pipe, the upper portion of the fuel gas total pipe is connected with the fuel gas butterfly valve, and the single-cylinder fuel gas timing and quantitative control device is connected with an air cylinder cover air inlet pipe through a fuel gas timing spraying pipe. The invention further discloses an air inlet method of the fuel gas inlet device of the fuel gas engine. The fuel gas inlet device of the fuel gas engine has the advantages of being good in safety performance, capable of improving thermal efficiency, strong in fuel gas adaptability, good in economical efficiency, and high in reliability.

Description

technical field [0001] The invention relates to a gas intake device of a gas internal combustion engine, and also relates to a gas intake method of the gas intake device of a gas internal combustion engine, belonging to the technical field of gas intake control of a gas internal combustion engine. Background technique [0002] At present, the gas intake control of gas internal combustion engines mainly adopts the following two methods: [0003] 1. The gas and air are pre-mixed by the mixer according to the preset mixing ratio and then enter the cylinder for combustion. This technology can control the air-fuel ratio to achieve uniform combustion. Its shortcoming is that the whole air intake system is a premixed gas of air and gas. Once it encounters a spark, it will flash back, blast or even explode, and the safety is poor; , easy to enter the exhaust pipe for combustion, waste gas, and low thermal efficiency. [0004] 2. Single-point or multi-point electronic high-press...

AI Technical Summary

Problems solved by technology

Its shortcoming is that the whole air intake system is a premixed gas of air and gas. Once it encounters a spark, it will flash back, blast or even explode, and the safety is poor; , easy to enter the exhaust pipe for combustion, waste gas, low thermal efficiency

The disadvantage is that the gas needs to be pressurized to a very high pressure (5~8Mpa), so that the auxiliary power consumption of the internal combustion engine is very large, the economy is not good, and it is difficult to promote in the market; in addition, because the large flow injector technology is not yet mature, Unable to use low calorific value gas

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