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Redundancy conversion device and method for hydraulic system

A technology of hydraulic system and conversion device, which is applied in the field of airborne hydraulic system to achieve the effect of providing reliability, optimizing configuration, and responding quickly

Active Publication Date: 2020-04-03
CHINA HELICOPTER RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When one of the hydraulic systems fails, other redundant hydraulic systems can still provide driving force for the steering system, but multiple independent hydraulic systems need manual control for mutual conversion

Method used

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  • Redundancy conversion device and method for hydraulic system
  • Redundancy conversion device and method for hydraulic system
  • Redundancy conversion device and method for hydraulic system

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] An embodiment of the present invention provides a hydraulic system redundancy conversion device, which includes: a housing 23, a first throttle valve 24, a second throttle valve 25, a main reversing valve and a linkage reversing valve;

[0040] The housing is provided with multiple passages for hydraulic oil circulation. The first throttle valve and the second throttle valve are embedded in the housing flow passages through interference f...

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Abstract

The invention belongs to the technical field of aircraft hydraulic systems, and discloses a redundancy conversion device and method for a hydraulic system. The redundancy conversion device comprises ashell, a first throttle valve, a second throttle valve, a main reversing valve and a linkage reversing valve; a flow channel for a plurality of ways of hydraulic oil to flow is formed in the shell; the first throttle valve and the second throttle valve are embedded into the flow channel of the shell through interference fit; the main reversing valve and the linkage reversing valve are respectively mounted in the flow channel of the shell through clearance fit and are fixed through back tightening nuts; and when one set of hydraulic system fails, a backup hydraulic system can automatically replace a failing system to provide hydraulic energy for a steering engine of an operating system.

Description

technical field [0001] The invention belongs to the technical field of on-board hydraulic systems, and in particular relates to a hydraulic system redundancy conversion device and method. Background technique [0002] Both fixed-wing aircraft and helicopters rely on the hydraulic system to provide driving force for their control systems. Because the reliability of the hydraulic system directly affects flight safety, redundancy design is often used to improve the reliability of the hydraulic system, that is, there are two sets on the aircraft or helicopter. Or 3 sets of independent hydraulic systems. When one of the hydraulic systems fails, other redundant hydraulic systems can still provide driving force for the steering system, but multiple independent hydraulic systems need manual control for mutual conversion. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a hydraulic system redundancy conversion devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F15B20/00B64C13/40
CPCF15B13/02F15B20/00B64C13/40F15B2211/8757Y02T50/40
Inventor 张学雷谭伦徐峰黄胜刘瑞杰徐折贵栾相鹏熊莉
Owner CHINA HELICOPTER RES & DEV INST