Fully automatic exhaust unloading valve

Abstract

The invention discloses a full-automatic exhaust unloading valve. The full-automatic exhaust unloading valve comprises an upper shell and a lower shell connected with the upper shell; an inlet pipe isarranged at the bottom of the lower shell; an outlet pipe is arranged at the top of the upper shell; the internals of the upper shell and the lower shell are of cavity structures; a floater module isarranged in the cavity of the lower shell; an exhaust unloading valve device is arranged in the cavity of the upper shell; the exhaust unloading valve device comprises an unloading valve base body fixed between the upper shell and the lower shell, and a spring base and an unloading valve base respectively arranged at the upper and lower ends in the unloading valve base body; the unloading valve base is provided with an exhaust unloading valve; a spring is arranged between the exhaust unloading valve and the spring base; the exhaust unloading valve is divided into a compression part and an opening / closing part through the unloading valve base; the compression part realizes connection with the spring; and the opening / closing part realizes contact and separation from the floater module. Through design of the floater module, no oil is leaked in the whole process; the structure is simple; and meaningless workload of specially opening an equipment cabin during oil feeding is not added.

Description

technical field [0001] The invention belongs to the field of aircraft hydraulic system parts and specifically discloses a non-leakage fully automatic exhaust unloading valve for the aircraft hydraulic system. Background technique [0002] When refueling the aircraft hydraulic system (fuel tank) for the first time, or when the hydraulic system needs to be replenished due to consumption or leakage after the hydraulic system has been used for a period of time, the air in the fuel tank must be discharged, otherwise it is difficult to fill the fuel tank with oil. , During the operation of the system, some air will also be precipitated in the hydraulic oil. The air is likely to cause cavitation in the system and damage the system components. At the same time, it will also have a great impact on the accuracy and stability of the aircraft fly-by-wire control system. Therefore, when initially refueling or replenishing the fuel tank, the air in the fuel tank must be discharged, otherw...

AI Technical Summary

Problems solved by technology

[0007] Therefore, problems such as oil leakage and waste of manpower in the prior art, complicated operation process, large installation location limitations, and easy pollution of equipment and the environment are the key technical problems to be solved in this application.

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