Vehicle-mounted oiling steam reclamation and fuel oil liquid level controlling decompression integrated device

Abstract

The invention discloses a vehicle-mounted oiling steam reclamation and fuel oil liquid level controlled decompression integrated device. A one-way valve, a slope valve and a fuel oil liquid level controlling decompression valve are fixedly arranged on the tank body of a fuel tank; a valve seat is fixed and sleeved in the valve body of the one-way valve, the internal middle of the valve seat is provided with a valve, and the top of the valve is conical and passes through a corresponding hole on the top surface of the valve seat; a conical filter screen is right ahead of the top of the valve; and the upper left part of a main valve body cavity of the fuel oil liquid level controlling decompression valve is provided with a main exhaust hole, the main valve body is provided with a fuel oil liquid level control valve and a fuel oil liquid level high-pressure decompression valve, and the upper right part of the main valve body cavity is provided with a fuel oil liquid level high-pressure decompression valve which is provided with a decompression hole formed on the main valve body and communicated with the main valve body cavity. The high-pressure decompression valve and the fuel oil liquid level control valve are made into a whole, so the device has a compact structure, improves the sensitivity and the reliability, reduces oiling discharge, avoids fuel oil leakage and realizes recycle of oil and gas.

Description

technical field [0001] The invention relates to a vehicle refueling vapor recovery device and its working principle, the main purpose of which is to recover gasoline vapor during the refueling process of gasoline vehicles. Background technique [0002] The current gasoline vehicles basically use activated carbon tanks, oil-gas separators and install a dump valve to recover part of the gasoline vapor when refueling. The vaporization amount is relatively large; and when the fuel tank rolls over or shakes greatly, gasoline liquid can easily enter the activated carbon canister through the connecting pipe, which seriously affects the recovery efficiency of the activated carbon canister. Contents of the invention [0003] The purpose of the present invention is to solve the problems existing in the refueling of gasoline vehicles in the prior art, and propose a vehicle-mounted refueling steam recovery and fuel level control pressure relief integrated device that effectively r...

AI Technical Summary

Problems solved by technology

[0002] The current gasoline vehicles basically use activated carbon tanks, oil-gas separators and install a dump valve to recover part of the gasoline vapor when refueling. The evaporation capacity is relatively large; and when the fuel tank rolls over or shakes greatly, gasoline liquid can easily enter the activated carbon tank through the connecting pipe, which seriously affects the recovery efficiency of the activated carbon tank

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