Novel automobile high-pressure-resistant oil tank isolation valve

Abstract

The invention relates to a novel automobile high-pressure-resistant oil tank isolation valve. The novel automobile high-pressure-resistant oil tank isolation valve is characterized in that the oil tank isolation valve comprises an isolation valve body, a spring assembly, a valve core assembly, a supporting rod, a restrictor ring, a sealing ring and an electromagnetic valve; the spring assembly, the valve core assembly, the restrictor ring, the supporting rod and the sealing ring are all arranged in the isolation valve body; and the electromagnetic valve is arranged at the end of the isolationvalve body. According to the technical scheme, the novel automobile high-pressure-resistant oil tank isolation valve is simple and ingenious in structure, and the complex functions of high-pressure air exhausting, negative-pressure air supplementing, oil charging air exhausting and the like are achieved by means of a few of parts including plastic parts, springs, the electromagnetic valve, rubberparts and the like; by adjusting the diameter of a hole and the sizes of the springs, the requirements of different customers can be met; only one electromagnetic valve is adopted for the isolation valve of the structure, so that electric energy is saved; and the isolation valve of the structure is small in size and does not occupy the space of a chassis.

Description

technical field [0001] The invention relates to an isolating valve, in particular to a novel high-pressure-resistant oil tank isolating valve for automobiles, and belongs to the technical field of plastic fuel tank structural equipment. Background technique [0002] After the gasoline in the fuel tank volatilizes, the hydrocarbon molecules continuously enter the carbon tank and are absorbed by the activated carbon in the carbon tank. If it is a conventional car, when the car is running, the negative pressure formed by the engine will desorb the hydrocarbon molecules in the carbon tank into the engine. Combustion, don't let the hydrocarbon molecules accumulate more and more in the carbon canister, and cause the risk of overflowing from the atmospheric port of the carbon canister and polluting the environment. If it is a "plug-in hybrid vehicle", if the engine does not work for a long time, the carbon canister of the fuel system will not be desorbed by the engine, and the hydr...

AI Technical Summary

Problems solved by technology

[0002] After the gasoline in the fuel tank volatilizes, the hydrocarbon molecules continuously enter the carbon tank and are absorbed by the activated carbon in the carbon tank. If it is a conventional car, when the car is running, the negative pressure formed by the engine will desorb the hydrocarbon molecules in the carbon tank into the engine. Combustion, don't let the hydrocarbon molecules accumulate more and more in the carbon canister, and cause the risk of overflowing from the atmospheric port of the carbon canister and polluting the environment

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