Dual-redundancy proportional pressure regulating mechanism

Abstract

A dual-redundancy proportional pressure regulating mechanism comprises a fluid laminar flow double-flow-passage implementing mechanism, pressure measuring points and a pressure measuring point position regulating mechanism. The fluid laminar flow double-flow-passage implementing mechanism comprises a valve core and a valve sleeve. A first notch and a second notch are axially formed in the side wall of the valve core, the clearances formed by the first notch, the second notch and the inner wall of the valve sleeve are communicated with an oil inlet and an oil outlet, the flow of the fluid in the clearances is of a laminar flow state, and the pressure distribution of the oil inlet and the oil outlet is of stable linear distribution. The pressure measuring points are pressure measuring holes penetrating through the valve sleeve, the pressure measuring holes are communicated with the clearances, and the pressure points are arranged on any point of the flow layer of a pressure regulating layer between the oil inlet and the oil outlet. The pressure measuring point position regulating mechanism comprises the valve core and a pushing component pushing the valve core to move inside the valve sleeve. The dual-redundancy proportional pressure regulating mechanism has the advantages that a double-flow-passage structure is adopted, even if one of the flow passages is blocked, the pressure regulating mechanism can still work normally, and the problem that a pressure regulating mechanism is easy to block is effectively solved.

Description

Technical field [0001] The invention relates to a double redundancy proportional pressure regulating mechanism. Background technique [0002] Redundancy is a design method considered to ensure safety. Two or more failures are required, rather than a single failure, to cause a predetermined undesired working state. Fluid pressure regulating mechanism-pressure control components such as overflow valve, pressure reducing valve, sequence valve, etc., they all use the partial pressure loss of the fluid in the resistance orifice to achieve pressure control. There are often many impurities in the fluid working medium. Blocking the resistance holes, resulting in failure of the pressure control element, affecting the normal operation of the entire system. Summary of the invention [0003] In order to solve the problem that the current pressure regulating mechanism is prone to clogging, the present invention proposes a double-redundant proportional pressure regulating mechanism that preven...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the current pressure regulating mechanism is prone to clogging, the present invention proposes a double-redundant proportional pressure regulating mechanism that prevents the pressure regulating mechanism from clogging, effectively prolongs the service life of the control elements and has high pressure regulating reliability.

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