Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A hydraulic retractable landing gear mechanism

A landing gear and front landing gear technology, applied in the chassis and other directions, can solve the problems of high power and heavy weight required for the hydraulic retraction of the landing gear, and achieve the effects of high reliability, simple energy saving, cost reduction, and reduced power consumption

Active Publication Date: 2022-01-11
中电科芜湖通用航空产业技术研究院有限公司 +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a hydraulic retractable landing gear mechanism, which solves the problems of high power and heavy weight required for hydraulic retractable landing gear

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A hydraulic retractable landing gear mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0013] combine figure 1 , a hydraulically retractable landing gear mechanism according to the present invention, comprising a hydraulic pump 1, a hydraulic oil tank 2, a first one-way valve 3, a safety valve 4, a pressure accumulating regulating valve 5, an accumulating one-way throttle valve 6, Pressure accumulator 7, pressure relay 8, second one-way valve 9, third one-way valve 10, unloading valve 11, fourth one-way valve 12, first two-position two-way solenoid valve 13, second two-position two-way Through electromagnetic valve 14, the fifth one-way valve 15, emergency release two-position two-way valve 16, travel switch 17, emergency release cam disc 18, main landing gear hydraulic actuator 22, front landing gear hydraulic actuator 23 and main Landing gear retractable cylinder 24, three sixth one-way valves 19 and three groups of control valve groups, eac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a hydraulic retractable landing gear mechanism, which comprises a hydraulic pump, a hydraulic oil tank, a first one-way valve, a safety valve, a pressure accumulation regulating valve, a pressure accumulation one-way throttle valve, a pressure accumulator, a pressure relay, a first Second one-way valve, third one-way valve, unloading valve, fourth one-way valve, first two-position two-way solenoid valve, second two-position two-way solenoid valve, fifth one-way valve, emergency discharge two-position two-way Through valve, travel switch, emergency lowering cam disc, main landing gear hydraulic actuator, nose landing gear hydraulic actuator and main landing gear retractable actuator, three sixth one-way valves and three sets of control valve groups. The invention can effectively reduce the power of the hydraulic energy source and has dual emergency lowering modes, is simple to operate and has higher reliability, and ensures that the landing gear of the aircraft can be lowered and landed safely.

Description

technical field [0001] The invention belongs to the technical field of aircraft hydraulic control, and in particular relates to a hydraulic retractable landing gear mechanism. Background technique [0002] The landing gear is a device used to support the weight of the aircraft and absorb the impact load when the aircraft is parked, taxiing, taking off and landing on the ground. It is a key component that affects the safety of the aircraft's take-off and landing. The retractable landing gear can significantly reduce the aerodynamic force of the aircraft. Drag, improving aerodynamic performance, is a common configuration for modern manned and unmanned aircraft. The design of the aircraft requires that the landing gear can be lowered under any reasonably possible failure of the retractable system to ensure the safe landing of the aircraft. [0003] 201811634425.2 discloses a "Aircraft Landing Gear Retractable Hydraulic System", which uses a motor-driven hydraulic pump as the h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B64C25/22
CPCB64C25/22
Inventor 盛文星
Owner 中电科芜湖通用航空产业技术研究院有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com