Zero oil swap energy conversion valve with double hydraulic systems

Abstract

The invention discloses a zero oil swap energy conversion valve with double hydraulic systems and aims to provide a conversion valve capable of achieving zero oil swap of normal / emergency standby hydraulic systems in on-off conversion and switching the normal / emergency standby hydraulic systems reliably. The zero oil swap energy conversion valve is implemented by the technical scheme as follows: an unloading hole communicating a step hole of a valve cavity and an oil return check valve cavity homodromously communicating to an oil return pressure port channel are formed in a valve body; a second oil inlet connecting channel and a first oil inlet connecting channel communicate symmetrically to a second oil inlet check valve cavity oppositely to form an oil inlet loop communicating to the oilreturn pressure port channel, and two oil return check valves ejecting each other oppositely attach a valve element tightly by means of pressures of the hydraulic systems and a spring force of a valve spring; under the action of the pressures of the hydraulic systems, entrance and discharge of a normal pressure supply oil way and an emergency pressure supply oil way are separated by a seal ring arranged on a step slide valve to switch normal / emergency pressure supply oil, separately, so that on-off working states of a main hydraulic oil tank and an assistant hydraulic oil tank are controlled.

Description

technical field [0001] The invention relates to a double-hydraulic system zero-splash oil energy conversion valve, in particular to switch between a normal pressure supply oil circuit and an emergency pressure supply oil circuit connected to an aircraft, and ensure zero-spray oil between the two oil circuits during switching. Background technique [0002] There are usually more than three sets of hydraulic systems on an aircraft, and it is generally impossible for three sets to be damaged at the same time. In the event of total damage, the aircraft immediately seeks the nearest location for landing repairs. If "all the hydraulic systems fail", then the aircraft's mechanisms that could have been able to move will not be able to move, and the flight status cannot be changed. The function of the hydraulic system is to increase the force by changing the pressure. A complete hydraulic system consists of five parts, namely power components, actuators, control components, auxilia...

AI Technical Summary

Problems solved by technology

The through hole of the movable block communicates with the through hole of the fixed block, and the valve is in the connected state, so that the main hydraulic oil tank and the booster hydraulic oil tank are connected, so that the oil volume of the two hydraulic oil tanks is balanced, but because the hydraulic oil tank is just in the engine It is above the afterburner and it is not easy to check. Once the hydraulic oil leaks, it may be dangerous

Therefore, no leakage of hydraulic oil to the outside of the tank is allowed

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