Fuel gas system of energy-saving vehicle

Abstract

The invention relates to a fuel gas system of an energy-saving vehicle. By adoption of the fuel gas system, the problem that the ignition angle of a dual-fuel vehicle is advanced can be effectively solved, the stable firing of natural gas can be guaranteed, and the power of an engine during use of natural gas can be improved. According to the technical scheme of the fuel gas system, the outlet of a fuel gas storage bottle is connected with the gas inlet of a decompressor; the gas outlet of the decompressor is connected with the gas inlet of a gas injection valve; the injection orifice of the gas injection valve is connected with a gas cylinder of the engine; and a controller is connected with a high-pressure electromagnetic valve, a water temperature sensor, a gas pressure sensor, a gas temperature sensor, an oil-gas transformation switch, an original vehicle OBD (on-board diagnostics) interface, an ignition coil of an ignition switch, an original vehicle ECU, an ignition advancer and a power supply battery. According to the fuel gas system provided by the invention, the injection time of the gas injection valve and the gasoline supply of a vehicle oil nozzle are controlled, so that the fuel gas firing process of the vehicle can be consistent in efficiency and power with the fuel oil firing process. Accordingly, the energy consumption is low, energy conservation and environmental protection are achieved, the output torque of the engine is increased, the gas consumption is reduced, the climbing performance and the accelerating performance are improved, and the problem that flameout is easy to trigger during the fuel gas firing process is solved.

Description

technical field [0001] The invention relates to an energy-saving automobile gas system. Background technique [0002] CNG (compressed natural gas) oil-gas dual-fuel vehicle has become a new generation product of modern family sedan and is favored by people because of its new advantages such as energy saving, environmental protection and safety. How to adjust the air supply in real time, so that the ratio of fresh air to fuel, so that the provided gas can achieve the best combustion effect, has become the direction of efforts of those skilled in the art, hoping to come up with a more energy-saving way , I hope that the same fuel can output greater power and travel farther. Although the "In-Cylinder Direct Injection Engine Vehicle Gas System" with the application number "201410356167.1" previously applied by the applicant has solved the problem of automatically controlling the compensation amount of gasoline in the gas state to a certain extent, but due to the chemical The n...

AI Technical Summary

Problems solved by technology

When using natural gas, there will still be problems such as lagging of the starting point of combustion, low cylinder pressure rise rate, low combustion temperature, increased heat transfer loss, increased exhaust temperature, and reduced thermal efficiency. Therefore, its improvement and innovation are imperative

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