KR102407769B1 - No-load fuelling system of airplane refueling vehicle - Google Patents

Abstract

The present invention supports the fuel pipe used when refueling jet fuel to an aircraft so that it does not sag and reduces the load generated at the connection point of the aircraft itself or the fuel port to prevent leakage of the connection part and at the same time reduce vibration generated during refueling. It relates to a no-load refueling device for a refueling vehicle, and more particularly, a link pipe part that supports the self-weight of the refueling pipe used during refueling and the weight of refueling jet fuel so that it is not transmitted to the aircraft, and the vibration generated during refueling is applied to the refueling pipe. It consists of a vibration absorbing part that minimizes the transmission to the aircraft through the; By supporting the downward sagging of the fuel pipe connected to refuel the aircraft, the stress does not act on the connecting part of the aircraft fuselage or the fuel port due to the weight of the fuel pipe itself and the weight of the jet fuel during refueling, thereby preventing deformation or failure. has a preventive effect.

Description

No-load fueling system of airplane refueling vehicle

The present invention relates to a device for a refueling vehicle for a civil aircraft, and more particularly, to a civil aircraft-related refueling industry, refueling by minimizing the load of the weight of the oil pipe at the connection point of the aircraft itself or the refueling port when refueling the aircraft and reducing vibration during refueling. It relates to a non-load refueling device for an aircraft refueling vehicle applicable to the device manufacturing industry and the aircraft industry.

In general, a fueling vehicle is used to supply jet fuel to aircraft at a civil airport. The characteristic of jet fuel tanker is a device that supplies jet fuel at an appropriate pressure and flow rate to an aircraft, and it is used for civil aircraft and military aircraft. separate

First, a refueling vehicle used for a military aircraft is equipped with both a refueling device and a jet fuel storage tank, and since it is necessary to refuel an aircraft in an unspecified environment, direct storage and transportation of jet fuel and a tanker are integrated.

On the other hand, the refueling car used for civil aircraft is used at large private airports, and in civil airports, fuel is refueled at the place where the aircraft is waiting, and pipes and refueling pits that supply jet fuel are buried in the floor of the apron, which is the waiting area of the aircraft. A large amount of jet fuel is stored far away.

Therefore, it is not necessary to separately store jet fuel for refueling vehicles used for civil aircraft. In a designated place, connect an oil pipe to a refueling pit adjacent to the aircraft to receive jet fuel, and filter the air, water, and foreign substances contained in the supplied jet fuel before scheduling. Jet fuel is supplied to the wing of an aircraft by pressure and flow rate.

In order to perform refueling work using a conventional general refueling vehicle, an operator climbs on a work lift, connects a refueling pipe to the refueling port located at the bottom of the aircraft wing, descends to the ground to refuel, and when refueling is completed, the work lift again The process is completed by removing the fuel pipe connector from the wing of the aircraft and closing the fuel port of the aircraft.

In the prior art, various refueling devices, such as refuelers, hydrant distributors, and other fuel units and/or systems, are used to deliver fuel into an aircraft to power the aircraft during operation.

And, the refueling device may include or be connected to a storage container (eg, a storage tank) containing fuel. Such storage vessels may be located above or below the ground level to hold fuel until needed to refuel the aircraft.

In addition, the storage vessel may be a fixed storage tank, or it may be a mobile vessel that is transported by a shipping company to the aircraft while on the ground. Some storage vessels may be transported by air-fueled aircraft to refuel other aircraft during operation. Examples of refueling devices are provided in US patents/applications US8720499, US5660798, US3648720, US2009/0315729, US2012/0043425.

Also, during refueling, fuel is transferred from the storage tank to the aircraft using hoses and other conduits. The hose may have one end connected to the storage tank and the other end attached to the aircraft.

The hose may have a nozzle insertable into a fuel receptacle on the aircraft to deliver fuel into the fuel tank of the aircraft. The hose may be connected to the storage tank by a fuel unit. Examples of such fuel devices are provided in US patents/applications US2011/0232801, US8720499, US8511351, US6360730, US3591050, and US4452207.

However, recently, with respect to the fueling method of connecting the fuel pipe to the fuel port in aircraft companies, by connecting the fuel pipe to the aircraft wing, the load increases due to the load and the weight of the fuel pipe during refueling. there was

In addition, when refueling in a state in which the fuel pipe is connected to the fuel port of the aircraft, there is a problem in that abrasion or leakage of the connection part may occur due to vibration caused by the jet fuel being transferred at high pressure.

As a result, many aircraft-related companies have proposed a technical request to supplement a separate fuel pipe support means so that the load on the aircraft wing does not act or reduce the load on the aircraft wing when refueling. There is an urgent need for a technology that prevents deformation of the oil supply tube itself by stably supporting the heavy oil supply pipe, reduces the load on the aircraft, and improves the deformation of the oil supply port.

Registered Patent 10-1235932 (Underground Hydrant Refueling Support Pit for Aircraft Refueling) Registered Patent 10-2079025 (Double door structure of aircraft refueling pit) Registered Patent 10-2149140 (Double box structure of aircraft refueling pit)

The present invention has been devised to solve the above problems, and supports the sagging of the fuel pipe connected for refueling of the aircraft in the downward direction, so that the body of the aircraft or the fuel port is An object of the present invention is to provide a non-load refueling device for an aircraft refueling vehicle that prevents stress from acting on the connection part.

And, when the detection signal of the first and second sensors of the present invention is generated, hydraulic force for supporting the link pipe is provided, so that an interference phenomenon does not occur when the lift is operated without using hydraulic power for operating the link pipe.

In addition, the present invention is to prevent the movement or movement of the vehicle by automatically operating the brake when refueling by interlocking the first and second sensors with the brake system of the refueling vehicle.

In addition, an object of the present invention is to prevent the vibration generated during refueling from being transmitted to the refueling unit or the aircraft body through the oil refueling pipe using the vibration absorbing unit.

In addition, the present invention is to absorb the vibration generated during refueling by supporting the oil supply pipe using an elastic member.

And, the present invention is to secure the hydraulic force support safety by additionally installing an auxiliary actuator to the actuator supporting the link pipe.

The no-load refueling device for an aircraft refueling vehicle according to an embodiment of the present invention uses a workbench that elevates and lowers the oil pipe through which jet fuel connected to the refueling pit of the airport apron flows, so as to connect the fueling port and the fuel pipe of the aircraft so that the jet fuel in the oil pipe is Connection of filter tanks for filtering jet fuel flowing through the oil pipe to minimize the load transfer of the fuel pipe to the aircraft by supporting the fuel pipe connected to the fuel port, and the height is adjusted by the elevating and lowering operation of the workbench. A first link pipe connecting the pipe and the first swivel, an actuator connected to the lower part of the first link pipe and a bracket structure to support it with hydraulic force, the first link pipe and the second swivel are connected to the oil supply pipe In the no-load refueling device of an aircraft refueling vehicle formed of a link pipe part comprising a second link pipe, a link pipe part that rotatably supports the connection part of the bracket structure and the second swivel, it is installed in the link pipe part and generated when refueling It is installed at the end point of the lower surface of the split pipe of the second link pipe to absorb, minimize, and support the flow vibration of the oil supply pipe, and constitutes a vibration absorption unit that forms a vibration support plate bent in the downward direction to match the curvature of the oil supply pipe.

In addition, the link pipe part is installed in the lower part of the first link pipe to open the cover of the oil supply pipe installed to be removed from the work table so as to be interlocked with the first sensor for detecting upward movement, and the first sensor, and fastening to the oil supply port. A second sensor that detects, the first sensor detects the rise of the first link pipe, and when the second sensor detects the tightening of the oil supply port, the hydraulic force is supplied to the actuator at a set value to maintain the first link pipe in the elevated position do.

In addition, it is configured to lock and unlock the brake by interlocking with the brake system of the refueling vehicle according to the detection signals of the first and second sensors.

Here, the second link pipe is composed of a pair of split pipes in which the ends of the single pipe connected to the first link pipe and the second swivel are divided in half, and a pair of oil supply pipes connected to the split pipe .

In addition, the vibration absorbing unit constitutes a plurality of elastic members installed on the upper surface of the vibration support plate, and a vibration absorption plate mounted on the upper portion of the elastic member to the upper portion of the vibration support plate to support the oil supply pipe.

And, in the actuator, an auxiliary actuator for supplying hydraulic force auxiliary to prevent loss of hydraulic force supporting the first link pipe is installed in the bracket structure.

According to an embodiment of the present invention, the oil supply pipe connected for refueling of the aircraft supports the downward sagging, so that the stress does not act on the connection part of the aircraft body or the fuel port due to the weight of the fuel pipe itself and the weight of the jet oil during refueling. This has the effect of preventing the occurrence of causes of deformation or failure.

In addition, when the detection signals of the first and second sensors are generated, hydraulic force for supporting the link pipe is provided, so that the hydraulic power for operating the link pipe is not used and the interference phenomenon does not occur during the operation of the lift, thereby having stability of operation there is

In addition, the first and second sensors and the brake system of the refueling vehicle are interlocked to automatically operate the brake during refueling to prevent movement or movement of the vehicle, thereby preventing a safety accident caused by the manager's mistake.

In addition, there is an effect of simply preventing the vibration generated during refueling from being transmitted to the refueling unit or the aircraft fuselage through the refueling pipe by using the vibration absorbing unit.

In addition, by supporting the oil supply pipe using an elastic member, there is an effect of absorbing vibrations generated during oil supply.

In addition, an auxiliary actuator is additionally installed in the actuator supporting the link pipe to secure the hydraulic force support safety.

1 is a side view of a non-load refueling device of an aircraft refueling vehicle according to the present invention;
2 is a plan view of a non-load refueling device of an aircraft refueling vehicle according to the present invention;
3 is a side view in which a workbench and a link pipe part of the no-load refueling device of an aircraft refueling vehicle according to the present invention are raised;
4 is an operation view of a link pipe part ascending of the no-load refueling device of an aircraft refueling vehicle according to the present invention;
5 is an exemplary view in which an auxiliary actuator is installed in the actuator according to the present invention;
6 is a sensing operation diagram of the second sensor unit according to the present invention;
7 is a partially enlarged view showing a vibration absorption unit according to the present invention;
In FIG. 8, FIG. a is a partially enlarged view showing a vibration absorbing part to which an elastic member in the form of a coil spring is applied, FIG.
9 and 10 are diagrams of an embodiment of refueling in connection with the refueling port of an aircraft using the no-load refueling device of an aircraft refueling vehicle according to the present invention;
11 is a schematic diagram of a refueling circulation for refueling jet fuel of a non-load refueling device of an aircraft refueling vehicle according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily carry out the present invention. However, the present invention may be implemented in several different forms and is not limited to the embodiments described herein. Throughout the specification, like reference numerals are assigned to similar parts.

1 to 9, when the configuration of the present invention is described with reference to the accompanying drawings, a workbench (2) for elevating and lowering the oil pipe (1) through which jet fuel connected to the refueling pit of a private airport apron flows It relates to a refueling device for a refueling vehicle that refuels by connecting the refueling port (3) and the fuel pipe (4) of the aircraft using the The refueling device 100 is constituted by a link pipe part 10 that supports so as not to be damaged, and a vibration absorbing part 20 that minimizes vibrations generated during refueling so as not to be transmitted to the aircraft through the refueling pipe 4 .

The refueling vehicle 8 used in the refueling device 100 is classified according to the refueling method, and in the present invention, a truck-type vehicle optimized for refueling jet fuel to civil aircraft rather than military aircraft may be applied.

In the refueling vehicle 8 of the refueling device 100, a workbench 2 for installing various devices is formed behind the driver's seat, and an oil pipe 1 connected to a refueling pit is installed around the workbench 2 .

The workbench 2 is a device for boarding the fuel pipe 4 to connect the fuel supply port of the aircraft and raising the link pipe part 10 to an appropriate height for refueling.

The fuel supply device 100 is the fuel supply pipe (4) connected to the fuel supply port (3), and the jet oil in the oil pipe (1) flows, and the height is adjusted in a link turning method by the raising/lowering operation of the work table (2). For example, to form a link pipe portion 10 to minimize the load transfer of the fuel pipe (4) to the aircraft.

The link pipe part 10 forms a first link pipe 12 that connects the connecting pipe 6 of the filter tank 5 for filtering the jet fuel flowing through the oil pipe 1 to the first swivel 11 . do.

An actuator 13 supported by hydraulic force is formed by connecting to the lower portion of the first link pipe 12 and the bracket structure 7 .

The actuator 13 is operated by a hydraulic cylinder method, and the cylinder 13a is installed to rotate on the bracket structure 7, and the rod 13b is installed to rotate on the lower surface of the first link pipe 12, The hydraulic pressure is supplied from the hydraulic pump 13d connected to the hydraulic tank 13c formed on the lower side of the refueling vehicle 8 , and the hydraulic pressure is controlled by the main controller 9 .

In the actuator 13 , an auxiliary actuator 30 for supplying hydraulic force auxiliary to prevent loss of hydraulic force supporting the first link pipe 12 is installed in the bracket structure 7 .

As for the auxiliary actuator 30, the auxiliary rod 31 and the auxiliary cylinder 32 are fixedly installed on the upper part of the bracket structure 7, and the auxiliary cylinder 32 and the cylinder 13a of the actuator 13 are connected to the hydraulic pipe. When the hydraulic pressure supply operation of the actuator 13 is completed by connecting to (33), the hydraulic pressure supplied to the auxiliary cylinder 32 is auxiliaryly re-injected into the cylinder 13a when the hydraulic oil is reduced.

The bracket structure (7) is formed on the upper portion of the work table (2) in the refueling vehicle (8) between the work table (2) and the filter tank (5) are installed.

The first link pipe 12 and the second swivel 14 are connected to form a second link pipe 15 to which the oil supply pipe 4 is connected.

A rotation support 16 for rotatably supporting the connection portion between the bracket structure 7 and the second swivel 14 is formed.

The rotation support 16 supports the weight of the first link pipe 12 and the second link pipe 15, and at the same time, especially when the first link pipe 12 and the second link pipe 15 are raised or lowered. It is a structure that distributes and supports the load to prevent deformation of the 1-link pipe 12 .

The first swivel 11 and the second swivel 14 are swivel joints that can satisfy all chemical, gas or petroleum related fluid transport requirements even at low or high pressure, very low or high temperature while considering the underwater and environmental protection aspects. As possible, it ensures dynamic fluid tightness and applies to many industrial applications such as pneumatic or hydraulic mobile links, pneumatic or hydraulic machines with rotating elements, etc., so that the first link pipe 12 and the second link pipe ( 15) It can be freely rotated at 360°C using a double row ball inside so that it can be turned gently when ascending.

The second link pipe 15 is formed of a pair of split pipes 15b in which the ends of the single pipe 15a connected to the first link pipe 12 and the second swivel 14 are divided in half. do.

It is formed of a pair of oil supply pipes 4 connected to the divided pipe 15b, and the number of the divided pipes 15b may be different depending on the oil supply conditions.

In addition, the link pipe unit 10 is installed in the lower portion of the first link pipe 12 to form a first sensor 17 for detecting an upward movement, the first sensor 17 is the first swivel 11 ) is installed on the lower surface of the formed first link pipe 12 and transmits an operation detection signal when the first link pipe 12 rises to the main controller 9 installed in the refueling vehicle 8 .

To form a second sensor 18 that detects and operates when the cover 2a of the oil supply pipe 4 installed to be removed from the work table 2 to be interlocked with the first sensor 17 is opened, the oil supply pipe 4 ) is formed so as to detect when the cover (2a) installed on one side of the work table (2) is opened.

The first sensor 17 contacts the first swivel 11 of the first link pipe 12 to sense rotation when ascending, and the second sensor 18 has the cover in contact with the closed cover 2a. (2a) is configured to maintain the raised position of the first link pipe 12 by supplying the hydraulic force to the actuator 13 as a set value when detecting that the detection is released when open.

The first sensor 17 and the second sensor 18 are interlocked with the brake system of the refueling vehicle 8 according to the detection signals to lock and release the brake.

The brake of the refueling vehicle 8 is locked and unlocked by the detection signals of the first sensor 17 and the second sensor 18 without a separate operation for locking and unlocking to increase convenience.

On the other hand, the vibration absorbing part 20 is installed at the end point of the lower surface of the divided pipe 15b of the second link pipe 15 and forms a vibration support plate 21 bent downward to match the curvature of the oil supply pipe 4 . do.

When the vibration support plate 21 is connected to the oil supply port 3 along the length of the oil supply pipe 4, the front end is formed in a pair of semi-cylindrical shapes so that the oil supply pipe 4 is raised, and the rear end is a divided pipe It is fixed to the lower surface of (15b) and when projected from the side, the front end is bent in the downward direction, so the bending and bending rate can be formed differently depending on the curvature of the oil supply pipe (4). It would be preferable to make it of stainless material.

As another embodiment, the vibration absorbing part 20 forms a plurality of elastic members 22 installed on the upper surface of the vibration support plate 21, and the elastic members 22 are in the form of a plate spring or a coil spring. can be applied

The vibration absorbing plate 23 is raised to the upper part of the elastic member 22 as the upper part of the vibration support plate 21 and supports the oil supply pipe 4 , and the vibration absorption plate 23 is the vibration support plate 21 . It is preferable to form it with the same material as the vibration support plate 21 and is installed in a state of being mounted on the upper part of the elastic member 22 spaced apart from the vibration support plate 21 , and the oil supply pipe 4 is placed on the upper part of the vibration absorption plate 23 . lose

The state of use of the oil supply device 100 configured as described above is as follows.

1 to 11, in order to refuel the aircraft with jet fuel using the refueling device 100, the refueling vehicle 8 is moved to the nearest refueling pit at the airport apron where the aircraft requiring refueling is moored. .

Thereafter, the refueling vehicle 8 confirms the operating position of the refueling pipe 4 to be connected to the refueling port 3 of the aircraft and makes a designated stop, and disconnects the oil pipe 1 to connect it to the refueling pit.

Next, when the person in charge of refueling boards the work bench (2) and raises the fuel pipe (4) to an appropriate height connected to the fuel port (3) of the aircraft, the second link pipe (15) of the link pipe section (10) The vibration support plate 21 of the vibration absorbing unit 20 rises while being placed on the railing on one side of the work table 2 .

Next, with the rise of the second link pipe 15 that rises along the work table 2, the first link pipe 12 is also pulled together and rises, while the first sensor 17 senses the rise. The signal is transmitted to the main controller 9. At this time, the hydraulic force does not act on the actuator 13, so that the hydraulic operation of the actuator 13 and the upward operation of the link pipe unit 10 due to the elevation of the work table 2 are mutually exclusive. There is no interference.

In addition, when the oiler in charge completes ascent of the worktable 2 to a position where refueling is smooth, when the cover 2a covering the oil supply pipe 4 mounted on one side of the workbench 2 is opened, the second sensor 18 is The open signal is transmitted to the main controller 9, and the fueling officer connects the fuel pipe 4 to the fuel port 3 of the aircraft and then lowers the workbench 2 down to operate the main controller 9.

At the same time, the main controller 9 receiving the detection signals from the first sensor 17 and the second sensor 18 automatically locks the brake system of the refueling vehicle 8 to prevent the refueling vehicle 8 from moving. Therefore, it has a characteristic that can carry out stable refueling operation.

At this time, in the main controller 9, the detection signals of the first sensor 17 and the second sensor 18 are sensed, and the oil supply pipe 4 maintains a state connected to the oil supply port 3, and is in charge of refueling. By operating the hydraulic pump 13d of the hydraulic tank 13c by operating the main controller 9 of It has a feature of preventing the load from being concentrated on the fuel supply port 3 of the aircraft due to the weight of the fuel pipe 4 being pushed up.

On the other hand, when the auxiliary actuator 30 is connected to the actuator 13, the hydraulic oil supplied to the cylinder 13a of the actuator 13 is maintained in a locked state while the oil supply is in progress, so that the link pipe part 10 moves downward. Although it maintains a fixed state to prevent movement, the hydraulic oil supplied to the auxiliary cylinder 32 of the auxiliary actuator 30 is supplied to the cylinder 13a in case the hydraulic force is lowered due to the oil supply vibration or the hydraulic oil is not airtight. It has a feature that can increase the safety of the actuator 13 as a supplementary function.

And, by the operation of the actuator 13, the first link pipe 12 rotates upward while the rotation support 16 pivots and supports it, and the oil supply pipe 4 is a vibration support plate of the vibration absorbing unit 20 ( 21) is maintained.

After that, if the person in charge of refueling operates for refueling by manipulating the main controller (9) with various valves open for refueling, jet fuel is transferred to the refueling pit of the airport apron -> oil pipe (1) -> filter tank (5) - > Connection pipe (6) of filter tank (5) -> 1st swivel (11) -> 1st link pipe (12) of link pipe part (10) -> 2nd swivel (14) -> 2nd link pipe The single pipe (15a) -> split pipe (15b) -> fuel pipe (4) -> oil supply port (3) of (15) is to be refueled to the storage tank of the aircraft.

In addition, when jet fuel is supplied at high pressure for quick refueling during refueling, severe vibration is generated by the high-speed flow of jet fuel. 20), the vibration support plate 21 absorbs vibration and prevents the vibration from being transmitted to the fuel supply port 3 of the aircraft along the oil supply pipe 4 by absorbing the vibration. It has a feature of minimizing wear and friction at the connection between (4) and the oil supply port (3) and reducing fatigue.

In addition, when the elastic member 22 is installed on the upper part of the vibration support plate 21 and the oil supply pipe 4 is mounted on the vibration absorption plate 23, the vibration generated in the oil supply pipe 4 is generated by the vibration absorption plate ( 23) is absorbed and extinguished by the elastic member 22, so that the vibration of the oil supply pipe 4 can be further minimized.

Then, when the refueling officer confirms that the aircraft refueling is completed through the main controller 9, the valve and operation of the refueling pit are stopped, the oil pipe 1 is disconnected, and the person in charge gets on the workbench 2 and lifts it up to one side of the railing. After disassembling the oil supply pipe (4) from the oil supply port (3) with the vibration absorption unit (20) raised to the upper part of the When closed, the second sensor 18 transmits a closing signal to the main controller 9 .

At this time, the main controller 9 receiving the closing signal of the second sensor 18 stops the operation of the hydraulic pump 13d for supplying hydraulic oil to the actuator 13 and at the same time stops the operation of the hydraulic tank 13c and the cylinder 13a. ) is opened so that the hydraulic oil in it is returned.

After that, the person in charge of refueling lowers the workbench to keep the second link pipe 15 mounted on the handrail of the workbench 2, and the first link pipe 12 is the hydraulic oil in the cylinder 13a due to its own weight. While returning to (13c), the first swivel 11 and the second swivel 14 are rotated to return to their original position, and then the main controller 9 is operated to end the refueling operation.

And, when the detection signals of the first sensor 17 and the second sensor 18 are terminated, the lock of the brake system of the refueling vehicle 8 is released and switched to a operable state, enabling safe movement to the next refueling location there will be

In the above description of the oil refueling device 100 of the present invention with reference to the accompanying drawings, the specific shape and direction have been mainly described, but the present invention can be variously modified and changed by those skilled in the art, and these modifications and changes are of the present invention. It should be construed as being included in the scope of rights.

1: oil pipeline 2: workbench
2a : cover 3 : refueling hole
4: oil supply pipe 5: filter tank
6 : connector 7 : bracket structure
8: refueling vehicle 9: main controller
10: link pipe part 11: first swivel
12: first link pipe 13: actuator
13a: cylinder 13b: rod
13c: hydraulic tank 13d: hydraulic pump
14: second swivel 15: second link pipe
15a: single pipe 15b: split pipe
16: rotation support 17: first sensor
18: second sensor
20: vibration absorption unit 21: vibration support plate
22: elastic member 23: vibration absorption plate
30: auxiliary actuator 31: auxiliary rod
32: auxiliary cylinder 33: hydraulic pipe
100: oil supply

Claims (6)

Using the workbench (2) that ascends and descends the oil pipe (1) through which jet fuel connected to the refueling pit of the airport apron flows, the jet fuel in the oil pipe (1) is It flows and the height is adjusted in a link turning method by the raising/lowering operation of the worktable (2), and the oil pipe (4) connected to the oil supply port (3) is supported to support the oil pipe (4) to minimize the load transfer of the oil pipe (4) to the aircraft. (1) a first link pipe (12) connecting the connecting pipe (6) of the filter tank (5) to the first swivel (11) for filtering the jet fuel, the lower part of the first link pipe (12) and an actuator 13 connected to the bracket structure 7 and supported by hydraulic force, and a second link pipe connected to the first link pipe 12 and the second swivel 14 and to which the oil supply pipe 4 is connected ( 15), in the no-load refueling device of an aircraft refueling vehicle formed of a link pipe part (10) comprising a rotation support (16) that rotatably supports the connection part of the bracket structure (7) and the second swivel (14),
It is installed in the link pipe part 10 to absorb and minimize the flow vibration of the oil supply pipe 4 generated during refueling, and is installed at the end point of the lower surface of the divided pipe 15b of the second link pipe 15 to support the supply. A non-load refueling device for an aircraft refueling vehicle, characterized in that it comprises a vibration absorbing part (20) forming a vibration support plate (21) bent in a downward direction to match the curvature of the oil pipe (4).
According to claim 1, wherein the link pipe unit (10) is installed in the lower portion of the first link pipe (12) a first sensor (17) for detecting the upward movement;
A second sensor 18 that detects and operates when the cover 2a of the oil supply pipe 4 installed to be removed from the work table 2 so as to be interlocked with the first sensor 17 is opened;
When the first sensor 17 detects the rise of the first link pipe 12 and the second sensor 18 detects the opening of the cover 2a, hydraulic force is supplied to the actuator 13 as a set value to A non-load refueling device for an aircraft refueling vehicle, characterized in that the 1-link pipe (12) is configured to maintain an elevated position.
The aircraft refueling vehicle according to claim 2, wherein the first sensor (17) and the second sensor (18) are interlocked with the brake system to lock and unlock the brake according to the detection signals. No-load refueling device.
According to claim 1, wherein the second link pipe (15) is a pair of split ends of the single pipe (15a) connected to the first link pipe (12) and the second swivel (14) is divided in half piping (15b);
A non-load refueling device for an aircraft refueling vehicle, characterized in that it consists of a pair of refueling pipes (4) connected to the split pipe (15b).
According to claim 1, wherein the vibration absorbing part 20 is an elastic member (22) installed in plurality on the upper surface of the vibration support plate (21);
A load-free refueling device for an aircraft refueling vehicle, characterized in that it is raised to the upper portion of the elastic member (22) to the upper portion of the vibration support plate (21) and constitutes a vibration absorption plate (23) supporting the oil supply pipe (4).
The bracket structure (7) according to claim 1, wherein the actuator (13) is provided with an auxiliary actuator (30) for supplying hydraulic force auxiliary to prevent loss of hydraulic force supporting the first link pipe (12). A no-load refueling device for an aircraft refueling vehicle, characterized in that it comprises.

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