Gas engine intake system, gas engine and automobile

Abstract

The invention relates to the technical field of engines, in particular to a gas engine intake system, a gas engine and an automobile. The system comprises a first cylinder set, a second cylinder set, a plurality of oil nozzles, an intake manifold, an intake elbow and a spacer; the first air cylinder set comprises at least one air cylinder, the second air cylinder set comprises at least one air cylinder, and the air cylinders in the first air cylinder set and the air cylinders in the second air cylinder set are arranged in one-to-one correspondence with the oil nozzles; the intake ends of the oil nozzles are connected with the intake manifold; the intake end of the intake manifold is connected with the intake elbow; and the spacer is arranged in the middle of the intake manifold and divides the intake manifold into a first intake part and a second intake part, the first intake part is used for providing fuel gas to the first cylinder set, and the second intake part is used for providing fuel gas to the second cylinder set. According to the gas engine intake system, airflow between two cylinders with air fed in sequence cannot interfere with each other only by additionally arranging the spacer in the intake manifold, and therefore the purpose of uniform intake is achieved, and the design has a high degree of freedom.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a gas engine intake system, a gas engine and an automobile. Background technique [0002] With the steady development of my country's economic construction, the contradiction between the supply and demand of energy fuels is becoming more and more serious, and the problem of alternative fuels has aroused widespread attention. In the process of seeking alternative fuels, methanol fuel has shown unique advantages. With the strong support of the government and relevant local departments, after years of hard work, the research and development of methanol fuel in my country has made great achievements. [0003] The development of existing heavy-duty methanol engines usually borrows the basis of existing mature heavy-duty diesel engines, generally six-cylinder and above engines. Due to the characteristics of methanol fuel, the combustion mode similar to gasoline is generally adopted, s...

AI Technical Summary

Problems solved by technology

[0004] During the development of the methanol engine, since the methanol engine is an equivalent ratio combustion, the uniformity of the intake air has a great influence on the explosion pressure of each cylinder; during the development of the engine, it was found that due to the influence of the uniformity of the intake air and the consistency of the injector, etc., resulting in The actual measured explosion pressure consistency of each cylinder is relatively poor, which cannot meet the development target requirements

Existing methods mainly use the extension of the length of the intake manifold and the electronic control to control the differential supply of the fuel injection volume of each cylinder to reduce the inconsistency of the explosion pressure of each cylinder

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