One-way valve with self-locking function

Abstract

The invention provides a one-way valve with a self-locking function. The problems that in the prior art, the sealing performance of a conventional one-way valve in the long-term storage process is poor, stability in the small flow condition becomes poor, and oil supply of a system is likely to be oscillated are solved. A sealing part, a locking assembly and an elastic assembly are arranged in thevalve, and the structure is compact, small and exquisite; a lock ring and a guide rod have a guiding effect on a valve element, the valve element is not subjected to any lateral acting force, motion is flexible, high reliability is achieved in locking, and the clamping stagnation problem is not likely to happen; the valve element can be opened at a time, a medium circulation channel is gotten through; and in addition, machining and assembling processes are simple, and repeated use can be achieved after disassembling and reset assembling.

Description

technical field [0001] The invention belongs to a valve for an engine, and in particular relates to a one-way valve with a built-in mechanical self-locking device, which can realize one-time opening during operation and open a channel between a medium system and an oil supply. Background technique [0002] In order to meet the long-term storage requirements of some existing engine media systems in the prepackaged state, and at the same time to ensure the low-pressure reliable start of the engine when the engine is at high altitude, a low-pressure opening check valve must be installed at the outlet of the media system. However, conventional one-way valves are difficult to meet the sealing requirements of long-term prepackaged storage, and the stability of the one-way valve will deteriorate under low flow conditions, which will easily cause oil supply oscillation when the medium system supplies oil to the combustion chamber; of course , Considering the tightness, a diaphragm v...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the disadvantages of poor sealing during long-term storage of conventional one-way valves in the prior art, poor stability at low flow rates, and easy oil supply oscillations in the system, and provides a self-locking one-way valve. Directional valves can meet the sealing requirements for long-term storage of some existing engine media systems in the prepackaged state, and at the same time avoid instability problems under small flow conditions

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