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39 results about "Drogue parachute" patented technology

A drogue parachute is a parachute designed to be deployed from a rapidly moving object in order to slow the object, to provide control and stability, or as a pilot parachute to deploy a larger parachute. It was invented in Russia by Gleb Kotelnikov in 1912.

Model airplane brake parachute mechanism

ActiveCN223279341UParachutesToy aircraftsDrogue parachuteRocker arm
The utility model relates to a model airplane brake parachute mechanism which comprises a brake parachute cabin body, a brake parachute pack, a parachute pack ejection device, a parachute pack cover plate, an unlocking assembly and a steering engine, the brake parachute cabin body is provided with a parachute pack groove for containing the brake parachute pack, the parachute pack ejection device is arranged at the groove bottom of the parachute pack groove, the brake parachute pack is placed on the parachute pack ejection device, and the steering engine is arranged on the brake parachute cabin body. The parachute pack ejection device provides thrust to abut the deceleration parachute pack against the parachute pack cover plate, the parachute pack cover plate capable of opening or closing the parachute pack groove is arranged at an opening of the parachute pack groove, the unlocking assembly is arranged on the deceleration parachute cabin and connected with the parachute pack cover plate in a matched mode, and the steering engine is arranged on the deceleration parachute cabin and connected with the parachute pack cover plate in a matched mode. The steering engine can control the rocker arm to push the unlocking assembly to leave the parachute pack cover plate, so that the parachute pack cover plate opens the parachute pack groove.
Owner:DONGGUAN FREEWING ELECTRONIC TECH LTD

Low-cost parachute landing recovery system for microgravity load return capsule

The invention relates to a low-cost parachute landing recovery system for a microgravity load return capsule, and aims to realize an efficient, reliable and economical recovery scheme through modular design, all modules are connected through standard interfaces, and assembly, maintenance and upgrading are facilitated. The structure module is used for assembling the parachute module and providing necessary shock resistance; the parachute module is used for pneumatic deceleration and attitude stabilization of the system and adopts a multi-stage unfolding structure; and the initiating explosive device module is used for bouncing the brake parachute, releasing the brake parachute and releasing a parachute closing opening. According to the system, the production and maintenance cost is remarkably reduced through modular design, meanwhile, the reliability and adaptability of the system are improved, and the system is suitable for various microgravity load return scenes and has wide market application prospects.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH

Ejection seat sequencer time critical delay distribution methods and system

An ejection seat includes an ejection seat sequencing system. The sequencing system enables time delays to various components of the system, such the drogue parachute, the main parachute, and harness release cartridge. A sequence controller receives data for a parameter, such as airspeed, from at least two sensors. The sequence controller selects a sequence timing delay mode to implement the time delays for the components of the sequencing system. The sequence controller also accesses a lookup table in a database accessible by the sequence controller. The sequence controller uses a delay parameter of the lookup table to modify a time delay within the sequence timing delay mode, as configured by a user.
Owner:ROCKWELL COLLINS INC

Electronic drogue reefing release system

PendingUS20260035079A1Aircraft ejection meansParachutesDrogue parachuteStructural engineering
An electronic drogue reefing release system includes a drogue parachute having a canopy, one or more reefing lines coupled to the canopy, one or more reefing line cutters coupled to the canopy, and one or more signal lines configured to deliver an electrical signal. The reefing lines are configured to restrict expansion of the canopy while in a first reefing state. The reefing line cutters are configured to place the at least one reefing line into a second reefing state in response to receiving the electrical signal so as to expand the canopy.
Owner:ROCKWELL COLLINS INC

A parachute-blocking type of elastic body nondestructive recovery device and method

ActiveCN117213319BDrogue parachuteStructural engineering
The application discloses a kind of umbrella resistance type elastic body nondestructive recovery device and method, belong to artillery launching technical field;The device includes projectile, and recovery body and deceleration parachute arranged in it;The projectile is the split type shell of non-fixed connection, in the state of holding tightly in artillery barrel, timely split after flying out of artillery barrel, eliminate the constraint of recovery body and deceleration parachute;The recovery body and deceleration parachute are connected by coupling assembly, the end of parachute rope of deceleration parachute is connected with the top end of recovery body by coupling assembly, and the parachute rope of deceleration parachute is arranged on recovery body along the set track, for the buffer connection between recovery body and deceleration parachute.The application solves the posture instability and parachute rope winding problem caused by the rigidity of deceleration parachute and recovery body, and does not need to design connecting mechanism and opening parachute mechanism separately, applies the object parachute system to the inside of elastic body in narrow space, guarantees that recovery body is not damaged by secondary overload impact and completes nondestructive recovery.
Owner:NORTHWESTERN POLYTECHNICAL UNIV +1

Device and method for improving the reliability of opening of a rescue parachute of an ejection seat

ActiveCN117360781BAircraft ejection meansParachutesDrogue parachuteEjection Seats
The application relates to a device and method for improving the opening reliability of a rescue parachute of an ejection seat, and relates to the field of air dropping. The device for improving the opening reliability of the rescue parachute of the ejection seat comprises a rescue parachute box and a deceleration parachute box which are installed on the ejection seat and are connected with each other, the deceleration parachute box is configured to be separable from the rescue parachute box, the rescue parachute box is internally provided with a rescue parachute, the deceleration parachute box is internally provided with a connecting belt, a deceleration parachute and a constant force breaking rope, one end of the connecting belt is connected with a parachute rope of the deceleration parachute, the other end of the connecting belt is connected with the top of the rescue parachute box, one end of the constant force breaking rope is connected with the top of a canopy of the deceleration parachute, the other end of the constant force breaking rope is connected with the top of the deceleration parachute box. The device and method for improving the opening reliability of the rescue parachute of the ejection seat solve the bending phenomenon of the parachute rope and the canopy during the high-speed ejection of the ejection seat, avoid the problems of early inflation of the rescue parachute, serious damage and local parachute turning, avoid the safety hazards caused by the interference after the separation of the parachute box and the rescue parachute, and improve the high-speed working reliability of the rescue parachute matched with the ejection seat.
Owner:AEROSPACE LIFE SUPPORT IND LTD

An underwater self-floating unmanned aerial vehicle group carrying device and working process

This invention relates to an underwater self-floating unmanned aerial vehicle (UAV) swarm transport device and its operating process, comprising, from top to bottom, a top cover, an airbag compartment, a main body section, a tail section, and a deceleration parachute compartment. The top cover, main body section, and tail section are all externally covered with deep-sea buoyancy material. A transport device is located inside the main body section, comprising an UAV compartment, a battery compartment, and a control compartment. The UAV compartment carries the UAV system to ensure surface launch. The battery compartment and control compartment are located below the UAV compartment. The battery compartment provides power throughout the process, and the control compartment controls the device's movement and signal transmission and reception. A fixing ring is located at the bottom of the transport device for connecting an acoustic release device and a gravity anchor. This facilitates rapid and reliable transport and ascent of the UAV swarm, stable surface launch of multiple UAVs, and ensures operational reliability.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER

Unmanned aerial vehicle recovery system and method based on fixing pins and aerial vehicle

PendingCN121734720AParachutesFlight vehicleDrogue parachute
The invention discloses an unmanned aerial vehicle recovery system and method based on a fixing pin and an aerial vehicle, and the unmanned aerial vehicle recovery system based on the fixing pin comprises an ejection parachute cabin, a parachute cabin, a main parachute pack, a main parachute, a brake parachute, the fixing pin and a separation joint. The parachute bay is used for loading the ejection parachute bay, the parachute bay, the main parachute pack, the main parachute, the brake parachute, the fixing pin and the separation joint, the brake parachute is connected with the main parachute pack through a brake parachute connecting rope, the main parachute pack is connected with the main parachute through a main parachute connecting rope, and the main parachute pack is connected with the main parachute through a fixing pin. The main parachute is connected to the separating connector through a hanging belt, and the separating connector is connected with the unmanned aerial vehicle. The three-stage parachute opening process is achieved through the brake parachute, the main parachute and the corresponding main parachute closing opening, the requirement of the main parachute for materials is reduced, meanwhile, the separation connector is adopted to avoid winding of parachute cords, and the recycling stability is guaranteed.
Owner:深圳市天鹰装备科技有限公司

Ram-wing parachute deployment load reduction system

ActiveCN117508605BExtend the inflation deployment timeReduce glide performance impactParachutesClassical mechanicsDrogue parachute
This invention discloses a ramjet parachute deployment and load reduction system, comprising a restraint ring, a sliding sheet (3), a release belt (4), a second connecting belt (5), a first connecting belt (6), a deceleration chute (7), a release mechanism (8), a load-bearing belt (9), and a restraint rope (10). This system can extend the ramjet parachute's inflation and deployment time. Compared to the current two-stage deployment method, it reduces the impact of the deceleration chute (7) on the ramjet parachute's gliding performance, and does not lose the deceleration chute (7). Compared to the current sliding sheet closing method, it has a better load reduction effect.
Owner:AEROSPACE LIFE SUPPORT IND LTD

Systems and methods for a hose reel

A method, an apparatus, and an aircraft may include a hose reel configured to attach to a first end of a hose, wherein the hose may be further configured to wrap around the hose reel, and wherein the hose reel may be configured to spin. A drogue may be configured to attach to a second end of the hose. At least one spring coupled to the hose reel may be configured to provide a constant force, wherein the hose reel spins in a first direction to allow the hose to protract when the drogue receives a first force that is greater than the constant force of the at least one spring, and wherein the hose reel spins in a second direction to allow the hose to retract when the drogue receives a second force that is less than the constant force of the at least one spring.
Owner:THE BOEING CO

Flying car brake parachute system, control method and flying car

PendingCN120440291AParachutesResilient suspensionsControl signalDrogue parachute
The invention relates to an aerocar brake parachute system, a control method and an aerocar, the aerocar brake parachute system comprises a car body, a propeller, a brake parachute, an air suspension unit and a control unit, the propeller is arranged at the top of the car body and comprises a containing cavity, and the brake parachute is arranged in the containing cavity; the air suspension unit is used for driving the brake parachute to pop out of the containing cavity and be opened through compressed air under the action of a control signal of the control unit. The brake parachute system of the hovercar drives the brake parachute through compressed air of the air suspension unit of the hovercar, so that the reliability of the brake parachute and the safety of the hovercar can be greatly improved.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

A model airplane deceleration parachute system and a deceleration parachute deployment recovery method

ActiveCN119190369BParachutesToy aircraftsDrogue parachuteTorsion spring
This invention relates to a model aircraft deceleration parachute system, including a parachute cover, an unlocking assembly, and a servo motor. The servo motor controls a rocker arm to push the unlocking assembly away from the parachute cover. The unlocking assembly includes a switch push block, a rotating shaft, a rotating component, and a torsion spring. The switch push block has a switch mounting slot. The rotating component, in conjunction with the rotating shaft, is oscillatingly mounted within the switch mounting slot. The top of the rotating component has a torsion spring mounting slot. The rotating shaft passes through the torsion spring mounting slot, and the torsion spring, in conjunction with the rotating shaft, is positioned within the torsion spring mounting slot. The torsion arm of the torsion spring abuts against the bottom of the torsion spring mounting slot, and the torsion arm pushes the rotating component against one side of the switch mounting slot. This invention relates to a model aircraft deceleration parachute system where the servo motor controls the rocker arm to push the unlocking assembly to release it from the parachute cover. The unlocking assembly automatically resets under the action of a return spring. This invention, through its ingenious mechanical structure design, eliminates the need to reset the rocker arm before installing the deceleration parachute, improving the user experience.
Owner:DONGGUAN FREEWING ELECTRONIC TECH LTD

An umbrella cartridge assembly compression device

ActiveCN224309992UAutomatically fill gapsGuaranteed assembly reliabilityMetal working apparatusClassical mechanicsDrogue parachute
This utility model relates to the field of military equipment technology, specifically to a parachute compartment assembly and clamping device, comprising a positioning plate, a lead screw fixedly mounted on the top of the positioning plate via a bearing seat, an internally threaded block threaded to the outer surface of the lead screw, a sliding column fixedly connected to the outer end face of the internally threaded block, and a parachute compartment disposed outside the sliding column for housing a deceleration parachute; a clamping block, comprising an expansion component for controlling the clamping block to expand outward to adapt to parachute compartments of various sizes, a filling component that automatically fills gaps in the expansion component when it expands outward, and a positioning component for locking the adjusted diameter of the expansion component. By setting up the clamping block, this utility model not only allows for the expansion or contraction of the clamping block without changing tooling when assembling parachute compartments of different sizes, flexibly adapting to parachute compartments of different diameters, but also automatically fills gaps generated during the expansion process, preventing uneven stress on the deceleration parachute.
Owner:江苏永康智能防务科技股份有限公司

A parachute system for a cloud burst bomb

ActiveCN117329936BProjectilesDrogue parachuteStructural engineering
The present application relates to the technical field of parachute application, in particular to a parachute system for cloud explosion bomb, which comprises a deceleration parachute, a main parachute, a cloud explosion bomb and a cloud cluster detonating device, the bottom of the main parachute is connected with the cloud explosion bomb, the multiple parachute ropes at the bottom of the deceleration parachute are connected with the top of the main parachute, the multiple parachute ropes at the bottom of the deceleration parachute enclose an installation space, an installation bag is arranged in the installation space, and the peripheral side of the installation bag is fixedly connected with the multiple parachute ropes of the deceleration parachute, the cloud cluster detonating device is arranged in the cavity of the installation bag, a connecting piece is connected with the installation bag, the connecting piece has a first state of closing the cavity and a second state of opening the cavity to form an opening, in the first state, the cloud cluster detonating device can be fixed in the cavity of the installation bag, and in the second state, the cloud cluster detonating device can enter and exit the cavity through the opening. The problem that the large parachute opening force in the prior art has an adverse effect on the safety of the detonating device is solved.
Owner:XIANGYANG HONGWEI AIRCRAFT

Novel aerial throwing device

PendingCN121158223AParachutesClassical mechanicsDrogue parachute
The invention discloses a novel air throwing device which comprises a brake parachute (1), a brake parachute pack (2), a binding belt (3) and a brake parachute connecting belt (4), the brake parachute pack (2) packages the brake parachute (1) and is fixed on the binding belt (3), and the brake parachute connecting belt (4) is connected with the brake parachute (1) and the binding belt (3). The parasol can be helped to separate the carrying bag in the air, the carrying weight of the parasol is reduced, the probability of rolling, dragging and other problems during landing of the parasol is reduced, and the safety of landing of the parasol is improved.
Owner:AVIC HONGGUANG AIRBORNE EQUIPMENT CO LTD

Movable brake parachute mounting ladder

ActiveCN223237957UAircraft maintainanceClassical mechanicsDrogue parachute
The utility model provides a movable brake parachute mounting ladder which solves the problems that when a brake parachute is folded and stored through a brake parachute mounting ladder, an operator can not turn around and move conveniently, and efficiency is low. The device comprises a moving device capable of moving on the ground, a supporting bottom frame is arranged at the top of the moving device, a standing platform is arranged at the top of the supporting bottom frame, and the standing platform comprises a plurality of platforms which are sequentially stacked and installed from bottom to top. The area of the platform on the upper layer is smaller than that of the platform on the lower layer, so that the standing platform forms a multi-layer stepped structure; first vertical rods are fixedly arranged on the left side and the right side of the supporting bottom frame correspondingly, and fireproof heat insulation lifting devices extending in the front-back direction are fixedly arranged on the tops of the first vertical rods on the left side and the right side correspondingly. When the brake parachute is used, the multi-layer step-shaped standing platform is adopted, the use requirements of operators with different heights can be met, and the operators can freely move and turn around on the standing platform when folding and storing the brake parachute.
Owner:中国人民解放军94686部队机务大队

Multi-stage deceleration parachute landing recovery method for large-scale high-speed unmanned aerial vehicle

PendingCN121516300AParachutesDrogue parachuteUncrewed vehicle
A brake parachute is additionally arranged on the basis of a main parachute, during recovery, the brake parachute is firstly opened to perform preliminary deceleration, so that the speed of the large high-speed unmanned aerial vehicle is reduced to be within a main parachute recovery envelope speed range, and then the main parachute is opened to complete further deceleration and stable landing. By means of the method, the recovery envelope can be greatly widened, meanwhile, the large impact load generated when the large-scale high-speed unmanned aerial vehicle is recovered is avoided, and recovery of the large-scale high-speed unmanned aerial vehicle is achieved.
Owner:CHINA AVIATION LIFESAVING INST

Near space-oriented differential pressure self-expansion brake parachute and parachute opening method and application thereof

PendingCN121573177ACosmonautic vehiclesParachutesDrogue parachuteMechanical engineering
The invention belongs to the field of aerospace engineering, and relates to a near space-oriented differential pressure self-expansion brake parachute and a parachute opening method and application thereof. A self-expansion parachute opening component is introduced, pre-filling gas is injected into all air pipes of the self-expansion parachute opening component in advance before a parachute body is packaged, and the air pipes are sealed, so that all the air pipes of the self-expansion parachute opening component can be quickly self-expanded by utilizing the internal and external pressure difference at the moment after the brake parachute is released out of a cabin in a near space, and the parachute body structure is quickly opened; therefore, automatic parachute opening is realized in a near-space low-dynamic-pressure environment. The technical limitation that a traditional brake parachute is unfolded depending on atmospheric dynamic pressure is broken through, the technical problem that the traditional brake parachute is difficult to unfold reliably and even cannot be unfolded in the near space is effectively solved, and the safety and reliability requirements of near space tasks can be met. The differential pressure self-expansion parachute opening technology is high in universality, suitable for various brake parachute configurations, high in designability and wide in application range, and application of the differential pressure self-expansion brake parachute in the aerospace field is promoted.
Owner:BEIJING INST OF TECH +1

Supersonic speed brake parachute rocket sled test platform

ActiveCN223460938UAmmunition testingDrogue parachuteRocket
The utility model provides a supersonic speed brake parachute rocket sled test platform which mainly solves the problems that in a supersonic speed brake parachute recovery test in an existing scheme, all test indexes are difficult to obtain, the test cost is high, and control is complex. According to the scheme, the supersonic speed brake parachute rocket sled test platform comprises a sled body chassis, a supporting part, a rectification part, a clamping ring supporting structure and a dynamic power-up system. The front end of the sledge body is of a truss structure. A tested warhead is connected with the stand columns through three clamping rings, and a triangular rectifying plate and a dynamic power-up system are designed on the skid body chassis. A truss structure is adopted, the erection height is high, the risk that a parachute canopy is possibly damaged due to interference between a supersonic heavy parachute and a rocket sled track is avoided, through the fusion design of multiple rectification structures, the overall aerodynamic resistance of the rocket sled is reduced, meanwhile, the downward pressure of the rocket sled body is increased, and the vibration quantity value of a tested bullet is greatly reduced.
Owner:CHINA NAT INST OF TEST & TESTING

Variable drag face parachute and method of opening

ActiveCN117302523BParachutesDrogue parachuteStructural engineering
The application discloses a variable-resistance surface parachute and a parachute opening method, and relates to the field of parachutes. The variable-resistance surface parachute comprises a deceleration parachute, at least two groups of parachute lines connected to the deceleration parachute, a connecting belt corresponding to each group of the parachute lines, and at least one time-delay separator. Each group of the parachute lines is arranged at intervals along the circumference of the deceleration parachute, and the groups of the parachute lines are arranged at intervals along the radial direction of the deceleration parachute. One end of the connecting belt is connected to each parachute line in the corresponding group, and the other end is used for connecting the top of the parachute. The connecting belts corresponding to each group of the parachute lines on the inner side are connected to the top of the parachute through a time-delay separator respectively. The lengths of the connecting belts corresponding to each group of the parachute lines gradually increase from the inside to the outside, and the time-delay separators corresponding to each group of the parachute lines gradually cut off the corresponding connecting belts after a preset interval from the inside to the outside. The variable-resistance surface parachute and the parachute opening method provided by the application can adjust the opening area of the deceleration parachute by restraining the parachute lines to restrict the degree of full inflation of the canopy.
Owner:AEROSPACE LIFE SUPPORT IND LTD

Main parachute group system suitable for large-tonnage reloading air-drop

PendingCN121536469AParachutesLaunching weaponsClassical mechanicsDrogue parachute
The invention discloses a group umbrella and main umbrella system suitable for large-tonnage reloading air-drop. The main umbrella system comprises a group umbrella system body formed by nine main umbrellas. The main parachute pack connecting rope is connected with the main parachute pack and connected with the main parachute through the parachute top damping connecting rope, the main parachute is connected with the main connecting rope through the main parachute connecting rope, and the brake parachute is connected with the main parachute connecting rope. According to the scheme, the large-tonnage traction capacity is achieved.
Owner:AVIC HONGGUANG AIRBORNE EQUIPMENT CO LTD

A folding wing cruise vehicle mounting and releasing device and a releasing method

ActiveCN115991295BSmall aerodynamic interferenceImprove delivery securityDrogue parachuteControl theory
The application discloses a kind of folding wing cruise vehicle mounting and launching device and launching method, device is by launching barrel, force frame, hanging point, separation ring, control device, buffer pad, torsion spring hinge, guide frame, hatch control steering gear, hatch and mounting rack composition;The mounting and launching device reduces the aerodynamic interference between the folding wing cruise vehicle launching process and carrying platform, greatly improves the launching safety.And the mounting and launching device has no pyrotechnics and deceleration parachute, simple mechanism, safe, reliable, low cost, can be reused repeatedly;At the same time, its working process is given, and the launching device is opened, the folding wing cruise vehicle is separated from the launching barrel, the separation ring is unlocked, the separation ring is separated from the cruise vehicle, the cruise vehicle folding wing is unlocked and unfolded, the cruise vehicle enters the flight state, the separation ring is recycled, and the hatch is closed. The launching separation process completes the launching of the cruise vehicle.
Owner:GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS

Parachute opening device

The utility model belongs to the technical field of safety, and relates to a parachute opening device which is used for fixing a deceleration parachute pack of an unmanned aerial vehicle and pushing out and opening a deceleration parachute when needed, and is characterized by comprising a shell, an ignition tube seat and a cut-off piston are sequentially arranged in the shell from top to bottom, and a weak connecting position is reserved at the lower end of the shell. The lower end of the weak joint is provided with a connecting structure connected with an unmanned aerial vehicle parachute pack; an electric ignition tube is arranged in the ignition tube seat, and the electric ignition tube, the cut-off piston and an inner cavity of the shell form a narrow closed space; the cut-off piston can slide downwards along the inner wall of the shell and cut off the reserved weak connecting position. The parachute opening device can controllably separate and push out the parachute pack of the unmanned aerial vehicle; a mechanical separation structure is adopted, and gas and a large amount of heat are not discharged; gas production agents are not needed, so that the size is small, the weight is light, and the requirement for light weight of the unmanned aerial vehicle is met; only the electric ignition tube is used for starting, so that the reliability is high.
Owner:XIAN CHENGLE SCI IND & TRADE CO LTD

Atmospheric vertical velocity measurement method and system based on down-cast sonde

PendingCN121432597AInstrumentsRocketsondeDrogue parachute
The embodiment of the invention provides an atmospheric vertical velocity measurement method and system based on a down-cast sonde, and is applied to the technical field of atmospheric physics. The method comprises the following steps: releasing the down-cast sonde from a flight platform in the air above a target observation area, and from the time when the down-cast sonde is released to the time when the down-cast sonde completes meteorological observation in the target observation area, keeping the down-cast sonde in an open state all the time, the falling process of the drop-down sonde is equivalent to the variable-deceleration falling motion of a rigid body composed of the brake parachute and the main body structure; the actual speed reduction of the down-cast sonde in the falling process is obtained; based on a ground reference system, decomposing the actual speed reduction of the down-cast sonde into an atmospheric vertical movement speed and a falling speed of the down-cast sonde in a static atmosphere; and performing inversion based on an inversion formula of the atmospheric vertical velocity to obtain the atmospheric vertical velocity. In this way, the weather vertical velocity can be directly obtained without relying on a ground station.
Owner:CMA METEOROLOGICAL OBSERVATION CENT

Drogue deployment for lighter than air vehicle descent

ActiveUS12428123B2ParachutesLighter-than-air aircraftFlight vehicleAcute angle
The technology relates to techniques for drogue deployment for a lighter than air (LTA) vehicle descent. A drogue deployment system for an LTA vehicle descent can include a drogue comprising a drogue parachute coupled to a carrier. A spring can be configured to launch the drogue from a launch tube directed outward from an apex of the LTA vehicle in an acute angle from a horizontal plane. A core can be placed around the launch tube and placed around the spring, the core compressing the spring and holding the spring in a compressed state prior to deployment, and a riser can couple the carrier to the envelope of the LTA vehicle. In some cases, the drogue deployment system can comprise two or more drogues, wherein intervals between the two or more drogues can be selected such that horizontal components of drogue deployment forces approximately cancel out.
Owner:AEROSTAR INT LLC

Retention net for small ships

ActiveCN224202299UDoes not cause hard damageShort-term, efficient and fast interceptionDefence devicesPolyesterMarine engineering
The utility model relates to a rope net for rejecting small ships, and belongs to the field of anti-terrorism stability-maintaining rejecting equipment, the rope net is formed by weaving nylon, polyester, aramid fiber and other materials, the rope net has the characteristics of light weight, strong flexibility, cutting resistance, good floatability and the like, and the front end of the rope net is provided with a quick connecting buckle. In actual use, the device can be quickly connected with a traction body cast and arranged by a traction rope net, and is launched through a special launching device; the brake parachute is arranged at the tail end of the rope net, after the brake parachute is thrown by the launching device, the brake parachute at the tail of the rope net is rapidly opened, the throwing speed of the rope net can be slowed down, and the rope net can be reliably arranged at a designated position. A plurality of floating balls are arranged at designated positions of the rope net, so that the rope net can reliably float when the rope net is opened and falls on the water surface, and small ships can be effectively intercepted and rejected.
Owner:WEAPON EQUIP RES INST OF CHINA NAT WEAPON EQUIP GRP

Method for testing dynamic aerodynamic force of large-area parachute

PendingCN121026496AAerodynamic testingDrogue parachuteStructural engineering
The invention discloses a large-area parachute dynamic aerodynamic force testing method, and relates to the field of parachute testing. The large-area parachute dynamic aerodynamic force test method comprises the following steps: calculating the outlet speed of a parachute to be tested after being launched from a parachute launcher, determining the working condition parameters of a parachute launcher and the nominal area and resistance coefficient of a stable brake parachute assembly of an electromagnetic parachute opening mechanism, and calculating the dynamic aerodynamic force of a shaft system of a parachute body to be tested in a coordinate system of the parachute to be tested; establishing a simulation working condition input condition calculation model of launching test parameters to optimize the launching opportunity to reach the optimal state; a dynamic pressure curve, an aerodynamic curve and a parachute body shafting attitude angle curve flowing through a parachute canopy of the tested parachute at the real-time parachute opening speed are measured and calculated, and dimensionless dynamic transverse and longitudinal aerodynamic coefficients under a parachute body shafting are obtained by combining the nominal geometric feature area of the tested parachute. According to the large-area parachute dynamic aerodynamic force test method, the obtained full-process speed data and missile-borne data are deeply fused, and the parachute dynamic aerodynamic force test accuracy and test data repeatability are improved.
Owner:AEROSPACE LIFE SUPPORT IND LTD

Device for reducing parachute opening overload of brake parachute

PendingCN121734663AParachutesDrogue parachuteMechanical engineering
The device comprises a shell, a cavity is formed in the shell, an energy absorption assembly and at least two pull rope assemblies are arranged in the cavity, the pull rope assemblies intersect at a first point position, the first point position is located at one end of the shell and used for being connected with the brake parachute, and the energy absorption assembly is arranged on the side, close to the first point position, of the cavity and used for being connected with the brake parachute. The side, opposite to the first point position, of the energy absorption assembly is connected with the shell through a pull rope assembly, so that when the brake parachute is opened, the pull rope assembly decomposes the pull force of the brake parachute and drives the energy absorption assembly to be compressed. The cavity is formed through the shell, the energy absorption assembly and the at least two pull rope assemblies intersecting at the first point position are integrated, the first point position is directly connected with the brake parachute, and the coherent load shedding logic of tension decomposition, stroke extension and energy absorption compression is achieved; the one-way impact load of the brake parachute is preliminarily decomposed through cooperation of a mechanical structure, the rope stroke is prolonged to reduce the peak load, the parachute body structure does not need to be changed, and compatibility is high.
Owner:YICHANG TESTING TECHNIQUE RESEARCH INSTITUTE

A deceleration separation device

This application discloses a deceleration separation device, comprising: a deceleration parachute compartment, a combined actuator, a deceleration parachute pack, a battery box, and a slave unit control board; the deceleration parachute compartment includes a compartment body and a compartment cover; a first port of the compartment body is snapped into the compartment cover; a second port of the compartment body is connected to the slave unit protective cylinder of a UAV via a first connector; the combined actuator is fixedly disposed inside the compartment body; one end of the combined actuator is a parachute ejector and connected to the compartment cover; the other end of the combined actuator is an explosive bolt and connected to the UAV's transition joint; the deceleration parachute pack is disposed inside the deceleration parachute compartment and connected to the compartment cover and the combined actuator via a second connector; the battery box is disposed inside the compartment body and connected to the parachute ejector and the explosive bolt; the slave unit control board is disposed inside the compartment body and communicatively connected to the parachute ejector and the explosive bolt. This application enables separation from the aircraft, reducing weight during free flight and improving the aircraft's endurance.
Owner:BEIJING ZHZ TECH

Disc type folding cruise missile ammunition suitable for dense loading of large caliber rocket projectiles

This invention relates to a disc-type folding loitering munition suitable for dense loading of large-caliber rockets, and pertains to the field of unmanned aerial vehicle (UAV) technology. It includes a mother missile, loitering munition bodies, a deceleration parachute, and a partition plate. The mother missile serves as the delivery carrier for the loitering munition bodies, responsible for long-range delivery. The loitering munition bodies are densely loaded in rows within the mission payload compartment of the mother missile, and are isolated and protected by the partition plate. The deceleration parachute is installed on the loitering munition body to decelerate the munitions after release, enabling them to reach normal operating speed. The loitering munition bodies of this invention can be densely loaded onto the mother missile, forming a swarm of loitering munitions after deployment, increasing firepower density and improving combat effectiveness. It is also suitable for loading large-caliber rockets, reducing onboard space occupation and improving usability. Furthermore, the tilt-rotor technology enhances the flight maneuverability of the loitering munitions.
Owner:YANGTZE DEITA GRADUATE SCHOOI OF BEIJING INST OF TECH (JIAXING)