Device integrating vapor-liquid separator with fuel tank liquid level control valve

Abstract

The invention discloses a device integrating a vapor-liquid separator and a fuel tank liquid level control valve. The device comprises a liquid level control valve shell, a floating core, a spring, the vapor-liquid separator, a fixing support and a connecting support; a vent hole is formed in the top end of a liquid level control valve cavity, and a liquid level window is formed in the top end ofthe outer layer side wall of the liquid level control valve shell; the floating core is arranged in the liquid level control valve cavity, and the spring is arranged in the liquid level control valveshell; a connecting base is formed at the top end of the outer wall of the liquid level control valve shell in the circumferential direction, and a connecting base bump is arranged at the outer ring of the top surface of the connecting base in the circumferential direction; the vapor-liquid separator is arranged at the top end of the liquid level control valve shell, and the top end of the liquidlevel control valve shell is inserted into a center groove of a vapor-liquid separator inner connecting base; a partition plate is arranged inside the vapor-liquid separator, and a partition plate through hole is formed in one end of the partition plate; and the connecting support is buckled on the connecting base, and the liquid level control valve shell is fixed to the vapor-liquid separator through the connecting support. According to the device, various working states are met, the using space of a fuel tank is reduced, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a device for controlling an integrated valve of a gas-liquid separator and a fuel tank liquid level. Background technique [0002] Automobile fuel tanks are generally equipped with a vapor-liquid separator (code-named LVS). The function of the vapor-liquid separator LVS is to separate the vapor gasoline in the evaporation line from the liquid gasoline during the bumpy driving of the car to prevent Liquid gasoline enters the carbon canister, making the canister invalid and polluting the environment. A liquid level control valve (code-named FLVV) is also installed in the fuel tank of the automobile. This device realizes the control of the filling amount when filling fuel, reduces the amount of refueling vapor entering the carbon tank, and meets the requirements for refueling vapor recovery. The liquid level control valve is a large flow exhaust valve, and it also has the anti-leakage fun...

AI Technical Summary

Problems solved by technology

In the prior art, the gas-liquid separator and the liquid level control valve are generally separated, and they are installed in the fuel tank at the same time. The form of integrating the fuel tank liqui

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