JP3302517B2 - Fuel refueling car - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refueling vehicle. That is, the present invention relates to a fuel refueling vehicle for refueling an aircraft with fuel oil at an airport.

[0002]

2. Description of the Related Art There are two types of fueling vehicles: a type of fueling that takes in fuel oil pumped through an underground hydrant pipe (so-called servicer) and a type of fueling oil loaded in a tank mounted on a vehicle. There are types that do. Then, in the latter type of fuel refueling vehicle equipped with a tank, the fuel oil in the tank is provided with a first refueling hose having a pressure refueling nozzle or a pistol nozzle after passing through a refueling pipe in which refueling equipment is arranged. Refuel the aircraft with one of the second refueling hoses. Refueling with a pressure refueling nozzle is performed for a large aircraft, and refueling with a pistol nozzle is performed for a small aircraft. And when refueling with the pressure refueling nozzle, the pressure refueling nozzle is tied to the refueling port of the aircraft,
There is no need to hold the pressure refueling nozzle by hand. On the other hand, when refueling with the pistol nozzle, it is necessary for the worker to hold the pistol nozzle by hand and continue to open the pistol nozzle during the refueling operation. That is, the pistol nozzle is opened only while the grip portion is gripped by hand, and closed when the hand is released.

[0003] In this type of fueling vehicle, a control valve is provided in a fueling pipe for safety. The control valve is opened and closed by remote manual operation by a remote operation device. During refueling, it is necessary for an operator to hold the remote operation device by hand and to keep the operation switch turned on while refueling. That is, only while the grip portion of the remote control device is gripped by hand, the operation switch is turned on and the control valve in the refueling pipe is opened to perform refueling. When released, the operation switch is turned off, the control valve of the refueling pipe is closed, and refueling is disabled.

[0004]

The following problems have been pointed out in such a conventional example. That is, in the fueling vehicle of this type of the conventional example, first, when refueling with the pressure refueling nozzle, the worker closes the pressure refueling nozzle to the refueling port of the aircraft, and then refuels the fuel without holding it by hand. During the operation, it is only necessary to hold only the remote control device and keep the operation switch ON (opening the control valve), and there is no particular trouble in the operation. On the other hand, when refueling with the pistol nozzle, the worker holds the pistol nozzle with the hand on the refueling port of the aircraft and continues to open it, while holding the remote control device and turns on the operation switch (control (Opening the valve). As described above, in this type of conventional fuel refueling vehicle, when refueling with the pistol nozzle, the worker needs to keep operating while holding both the pistol nozzle and the remote control device during refueling, which is very troublesome and troublesome. Workability was poor, which was a problem.

The present invention has been made in view of the above circumstances, and has been made to solve the above-described problems of the conventional example. A control device capable of detecting a stored state of a pistol nozzle and opening and closing a control valve is provided. In the case of refueling with a pistol nozzle, the control valve of the refueling pipe can be automatically opened not only at the time of opening operation by the remote control device but also at the time of detection of non-retraction of the pistol nozzle by the control device. It is an object of the present invention to propose a fuel refueling vehicle in which work is simplified and workability is improved.

[0006]

The technical means of the present invention for achieving this object is as follows. That is, in this fuel refueling vehicle, fuel oil loaded in a tank mounted on a vehicle is branched in parallel after passing through a bottom valve of the tank and a refueling pipe in which refueling devices such as a pump, a filter, and a measuring device are arranged. Either the first oiling hose provided with a pressure oiling nozzle or the second oiling hose provided with a pistol nozzle,
Refuel the aircraft. A control valve provided in the oil supply pipe; a remote control device capable of opening and closing the control valve by remote manual operation; and a control capable of detecting a storage state of the pistol nozzle and opening and closing the control valve. And a device. The control valve can be opened only at the time of the opening operation by the remote control device or only when the control device detects that the pistol nozzle is not stored.

[0007]

The present invention comprises the above-mentioned means, and operates as follows. In this fuel refueling vehicle, after the fuel oil loaded in the tank passes through a refueling pipe provided with refueling equipment, a first refueling hose having a pressure refueling nozzle or a second refueling hose having a pistol nozzle At one of
Refueled aircraft. And when refueling a large aircraft, the stored first refueling hose is pulled out,
The pressure refueling nozzle is tied to the refueling port of the aircraft, and during refueling, the remote control device is held and the control valve of the refueling pipe is kept open.

Next, when refueling a small aircraft, the stored second refueling hose is pulled out, and the control valve of the refueling pipe can be automatically opened by detecting non-retraction of the pistol nozzle by the control device. Become. Then, refueling is started, and during refueling, the pistol nozzle is held and the opening operation is continued. As described above, when refueling is performed with the pistol nozzle, the control valve of the refueling pipe can be automatically opened, and it is not necessary to hold the remote control device and continue opening the control valve during refueling. Therefore, it is only necessary to continue the opening operation while holding only the pistol nozzle, and the workability is improved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. 1 and 2 show an embodiment of the present invention. FIG. 1 shows an oil supply pipe, oil supply equipment, a remote control device,
It is explanatory drawing of a control apparatus etc., FIG.2 (1) is the whole plane schematic diagram, FIG.2 (2) is the whole side schematic diagram. FIG. 3 is a cross-sectional view of the control valve, and FIG. 4 is a schematic plan view showing a state in which the fuel refueling vehicle refuels the aircraft.

First, this kind of fuel-fueled vehicle will be outlined. In this fuel refueling vehicle 1, fuel oil loaded in a tank 2 mounted on a vehicle is distributed by a bottom valve 3 of the tank 2 and refueling equipment 7 such as a pump 4, a filter or a filter separator 5, and a flow meter 6 as a measuring instrument. After passing through the refueling pipe 8
The aircraft 13 is refueled with one of a first refueling hose 10 having a pressure refueling nozzle 9 at the tip and a second refueling hose 12 having a pistol nozzle 11 at the tip. That is, the fuel-fueled vehicle 1 is of a dual-purpose type capable of refueling both the large aircraft 13 and the small aircraft 13 and is mainly used at a regional airport or the like.

First, these will be described in detail. As shown in FIG. 1, a line strainer 1 is provided in a fuel supply pipe 8 in a machine room 14 of a fuel refueling vehicle 1 from an upstream side to a downstream side.
5, refueling equipment 7 such as a pump 4, a control valve 16, a filter separator 5, a two-way valve 17, and the like are arranged in order. A bypass pipe 19 provided with a bypass valve 18 is provided between the upstream of the line strainer 15 and the downstream of the pump 4.
The oil supply pipe 8 is provided in parallel. Then, the fuel oil loaded in the tank 2 is filtered from the bottom valve 3 of the tank 2 through the line strainer 15 and then sucked into the pump 4. The fuel oil pumped by the pump 4 passes through an open control valve 16, which will be described later, and is then purified by the filter separator 5.
Leads to. After passing through the refueling equipment 7 of the refueling pipe 8, the fuel oil is branched from the first refueling hose 10 or the second refueling hose 12 provided in parallel at the downstream end of the refueling pipe 8 to the aircraft 13. And refueled.

The first oil supply hose 10 and the second oil supply hose 12
Is wound around the respective hose reels 20 and 21 in the machine room 14 during storage, and is opened from the hose reels 20 and 21 after opening the respective doors 22 and 23 during non-storage, that is, during refueling. Then, it is taken out of the machine room 14 and then to the aircraft 13 from the front end side and extended. As shown in FIG. 2, the door 22 for the first oil supply hose 10 is provided on the back of the machine room 14, and the door 23 for the second oil supply hose 12 is provided on the side of the machine room 14. A pressure oil supply nozzle 9 is provided at the tip of the first oil supply hose 10, and
A pistol nozzle 11 is provided at the tip of the second oil supply hose 12,
Each is provided. The pressure refueling nozzle 9 can be connected to a refueling port 24 (see FIG. 4) of the large aircraft 13 (see FIG. 4), and is provided with a valve that is kept open after the connection. Further, the pistol nozzle 11 can be connected to a refueling port (not shown) of the small aircraft 13 by continuing to hold it by hand, and open the hand only while holding the grip portion by hand. A manual valve with a spring that closes when released is provided.

The fuel refueling vehicle 1 further includes a control valve 16 provided in the refueling pipe 8, a remote control device 25 capable of opening and closing the control valve 16 by remote manual operation, and a pistol nozzle 11. And a control device C capable of detecting the storage state and opening and closing the control valve 16. Thus, the control valve 16
It can be opened only when the remote operation device 25 performs an opening operation or when the control device C detects that the pistol nozzle 11 is not stored.

More specifically, the control valve 16 is provided between the pump 4 and the filter separator 5 of the oil supply pipe 8 of the machine room 14 in consideration of safety.
The oil supply pipe 8 can be opened and closed as appropriate, and is opened and closed by, for example, the method shown in FIG. First, when the solenoid valve 26 is closed as shown in the figure, the fuel oil on the upstream side 28 of the valve body 27 is supplied to the port 29, the auxiliary pipe 30, the throttle valve 31, the branch pipe 32,
The gas flows into the valve chamber 34 on the back side of the valve body 27 via the port 33 and the like, and the upstream side 28 of the valve body 27 and the valve chamber 34 on the back side have the same pressure. Thus, the valve body 27 is pressed and moved to the upstream side 28 by the urging force of the spring 35 interposed in the valve chamber 34, and closes the port 36 as a valve hole as shown in the figure. Thus, when the solenoid valve 26 is closed as shown, the control valve 16 is closed,
The flow of the fuel oil in the oil supply pipe 8 is blocked.

On the other hand, when the solenoid valve 26 is switched from the illustrated closed state to the open state, the control valve 16 is opened as follows. That is, the fuel oil on the upstream side 28 of the valve body 27 passes through the port 29, the auxiliary pipe 30, the throttle valve 31, the open electromagnetic valve 26, and the like, from the port 37 at the lower end of the auxiliary pipe 30 to the downstream of the oil supply pipe 8. Flow into side 38. The cross-sectional area of the opening of the solenoid valve 26 is set larger than that of the throttle valve 31. Then, a pressure difference is generated between the upstream side 28 of the valve body 27 and the valve chamber 34 on the back side, and the valve body 27
The spring 35 is compressed against the urging force, and is further moved from the state shown in the figure toward the valve chamber 34, that is, toward the downstream side 38. Then, the fuel oil in the valve chamber 34 is pushed out from the port 37 to the downstream side 38 via the branch pipe 32, the open electromagnetic valve 26, the lower end side of the auxiliary pipe 30, and the like. When the solenoid valve 26 is opened in this manner, the valve body 27 is connected to the port 3 serving as a valve hole.
6 has been moved to open the control valve 1.
6 is open, and the fuel oil can flow from the upstream side 28 to the downstream side 38 in the fuel supply pipe 8. The control valve 16 is opened and closed in this manner.

Next, such a control valve 16 will be described.
Is switched by the remote control device 25 and the control device C as described below. That is, as shown in FIG. 1, the electric circuit 40 between the power source 39 and the solenoid valve 26
Are branched in parallel on the way, and an operation switch 42 is arranged on one side via a cable 41. The remote control device 25 includes the cable 41, the operation switch 42, and the cable reel 4 around which the cable 41 is wound.
3, a spring, a grip portion (not shown), and the like. The operation switch 42 of the remote operation device 25 is turned on only while the grip portion is gripped by hand, and is automatically turned off when the hand is released by the biasing force of the interposed spring (see FIG. Operation state 4)
By turning on 2, the solenoid valve 26 is energized and excited to open the control valve 16. That is, the control valve 16 can be opened only while the operation switch 42 of the remote operation device 25 is kept on.

Next, in the illustrated example, the control device C includes a first switch 44 capable of detecting the storage state of the pressure refueling nozzle 9 and a second switch 45 capable of detecting the storage state of the pistol nozzle 11. According to these detection results, the control valve 16 can be opened and closed. The first switch 44 is attached to the machine room 14 near the door 22 (see FIG. 2).
When the first refueling hose 10 and the pressure refueling nozzle 9 are stored in the machine room 14 and the door 22 is closed, this is detected and the a-side contact is turned off and the b-side contact is turned on. Conversely, when the door 22 is opened, this is detected and a
The side contacts are turned on and the b-side contacts are turned off. The second switch 45 is attached to the machine room 14 near the door 23 (see FIG. 2). When the second oil supply hose 12 and the pistol nozzle 11 are stored in the machine room 14 and the door 23 is closed, Is detected and the a-side contact is turned off and the b-side contact is turned on. Conversely, when the door 23 is opened, this is detected and the a-side contact is turned on and the b-side contact is turned off. Have been.

A control device C having such a first switch 44 and a second switch 45 is incorporated in the electric circuit 40 for switching the solenoid valve 26 shown in FIG. 1 together with the remote control device 25 described above. ing. That is, the one side electric circuit 40 branched in parallel includes the solenoid valve 26
The operation switch 42 of the remote operation device 25, the b-side contact of the second switch 45 of the control device C, and the a-side contact of the first switch 44 are arranged in this order from the side. In the branched electric circuit 40, an a-side contact of the second switch 45 and a b-side contact of the first switch 44 of the control device C are arranged in this order from the solenoid valve 26 side.

Therefore, the control valve 16 can be opened at the time of the opening operation by the remote controller 25.
That is, the control valve 1 by the remote control device 25
6, the operation switch 42 is turned on, the pistol nozzle 11 and the second oil supply hose 12 are further stored in the illustrated example, the door 23 is closed, and the second switch of the control device C is turned on. The b-side contact 45 is turned on, and the pressure refueling nozzle 9 and the first refueling hose 10 are taken out to the aircraft 13 side, the door 22 is opened, and the a-side contact of the first switch 44 of the control device C is closed. When turned on, the solenoid valve 26 is energized and excited by these to switch to open and the control valve 16 can be opened.

The control valve 16 can be opened even when the control device C detects that the pistol nozzle 11 is not retracted. That is, the pistol nozzle 11 and the second refueling hose 12 are taken out to the aircraft 13 side, the door 23 is opened, and the a-side contact of the second switch 45 of the control device C is turned on. The refueling nozzle 9 and the first refueling hose 10 are stored, and the door 22
Is closed, and b of the first switch 44 of the controller C is
When the side contact is on, these cause the solenoid valve 2
6 is energized and energized and switched to open, the control valve 1
6 can be opened. In FIG. 2, reference numeral 46 denotes a cab of the fueling vehicle 1.

The present invention is configured as described above. Then, it becomes as follows. In this fuel refueling vehicle 1, fuel oil loaded in the tank 2 is supplied to a refueling pipe 7 in which refueling equipment 7 such as a bottom valve 3, a control valve 16, a pump 4, a filter separator 5 and a flow meter 6 of the tank 2 is arranged. 8, at a predetermined pressure and at a predetermined pressure, either the first refueling hose 10 provided with the pressure refueling nozzle 9 or the second refueling hose 12 provided with the pistol nozzle 11, the refueling port 24. From the tank room of the aircraft 13.

When refueling the large aircraft 13, first, the door 22 of the machine room 14 is opened, the stored first refueling hose 10 is pulled out, and the pressure refueling nozzle 9 at the tip thereof is connected to the aircraft 13. Ties with the filler port 24. Then, the control valve 16 of the refueling pipe 8 is opened by the remote control device 25 to start high-pressure refueling.

That is, when refueling is performed by the pressure refueling nozzle 9, in the illustrated example, the remote control device 25 opens the control valve 16, that is, the operation switch 42.
Is turned on, the door 23 is closed, the b-side contact of the second switch 45 of the control device C is on, and the door 2 is closed.
2 is opened and the a-side contact of the first switch 44 of the control device C is turned on.
Is turned on to switch to the open state, the control valve 16 is also opened, and fuel oil is fed through the oil supply pipe 8 to start oil supply from the first oil supply hose 10 and the pressure oil supply nozzle 9. During the refueling after the fact, the electromagnetic valve 26 and the control valve 16 are continuously opened by holding the remote control device 25 by hand and continuing to turn on the operation switch 42. When the refueling of the required amount is completed, the electromagnetic valve 26 and the control valve 16 are closed by releasing the hand from the operation switch 42 of the remote control device 25, and the tight connection of the pressure refueling nozzle 9 is released. It is stored in the machine room 14 together with the hose 10. Since the door 22 is closed and the first switch 44 of the control device C turns off the contact on the a side and turns on the contact on the b side, the operation switch 42 of the remote control device 25 is subsequently turned on. However, the solenoid valve 26 and the control valve 16 are not switched to open.

Next, when refueling the small aircraft 13, the door 23 of the machine room 14 is first opened, the stored second refueling hose 12 is pulled out, and the pistol nozzle 11 at the tip is held. , To the refueling port 24 of the aircraft 13. By the way, in this case, the control device C detects that the pistol nozzle 11 is not stored, and the control valve 16 of the refueling pipe 8 can be automatically opened by such non-storage detection.

That is, when refueling is performed by the pistol nozzle 11, in the illustrated example, the refueling port 24 of the aircraft 13
Is opened while the pistol nozzle 11 connected to the control device is held, and the door 23 is opened.
The a-side contact of the switch 45 is on, the door 22 is closed, and the b-side contact of the first switch 44 of the control device C is on, so that the solenoid valve 26 is energized and opened. The control valve 16 is also opened, and fuel oil is pumped through the oil supply pipe 8, and relatively low-pressure oil supply from the second oil supply hose 12 and the pistol nozzle 11 is started. During refueling after the fact, the pistol nozzle 11 is kept open by hand while being held by hand. When the refueling of the required amount is completed, the pistol nozzle 11 is closed and stored together with the second refueling hose 12 in the machine room 14, but the control valve 16 is closed by the detection of storage by the control device C. That is, since the door 23 is closed, the second switch 45 of the control device C is closed.
In this case, the a-side contact is turned off and the b-side contact is turned on, so that the solenoid valve 26 and the control valve 16 are closed.

Now, the fuel refueling vehicle 1 operates as follows. That is, when refueling with the pistol nozzle 11, the control valve 16 of the refueling pipe 8 can be automatically opened, and as in the above-described conventional example,
It is not necessary for the operator to turn on the operation switch 42 while holding the remote control device 25 and keep opening the control valve 16 while refueling. Therefore, the pistol nozzle 1
The refueling by 1 only needs to continue the opening operation while holding only the pistol nozzle 11, and the workability is improved.

First, the remote control device 25 is used not only for the above-described normal refueling of the large aircraft 13 but also for the following. That is, when an emergency occurs during refueling, when it is necessary to stop refueling halfway, or when there is any abnormality in the operator who refuels, the operator can use the hand of the remote control device 25 to grasp. Is released, the operation switch 42 is turned off, and the solenoid valve 26
Is turned off and the solenoid valve 26 is switched from open to closed. As a result, the control valve 16 is automatically switched from the open state to the closed state, the flow of the fuel oil in the fuel supply pipe 8 is cut off, the fuel supply is stopped, and it is possible to easily cope with the above-mentioned situation.

Secondly, in the illustrated embodiment described above, the first switch 44 and the second switch 45 of the control device C are used.
Is provided on the machine room 14 side near the door 22 or the door 23, and utilizes the fact that the door 22 or the door 23 is not closed unless the pressure refueling nozzle 9 and the pistol nozzle 11 are stored in the machine room 14. , These storage states were detected.
However, without being limited to the illustrated example, for example, the first switch 44 and the second switch 45 of the control device C may be provided in respective nozzle storage units (not shown) provided in the machine room 14. In addition, the storage state of the pressure fuel nozzle 9 and the pistol nozzle 11 may be directly detected.

Third, in the illustrated embodiment, the interlock circuit is formed as described above, so that erroneous operation is reliably prevented. That is, when the first oil supply hose 10 and the pressure oil supply nozzle 9 are used to supply oil, if for some reason the second oil supply hose 12 and the door 23 for the pistol nozzle 11 are not closed, Since the a-side contact of both the first switch 44 and the second switch 45 of the control device C is turned on, the solenoid valve 26 is closed without being energized and energized, and the control valve 16 is also closed. Conversely, the second oil supply hose 12
And when refueling with the pistol nozzle 11,
If, for some reason, the first refueling hose 1
Even when the door 22 for the pressure refueling nozzle 9 is not closed, both the first switch 44 and the second switch 45 of the control device C turn on the a-side contact, and the solenoid valve 26 is not energized or excited. When closed, the control valve 16 is also closed, and refueling is disabled.

In particular, the control device C has only the second switch 45 and the first switch 44
Is not provided, the second refueling hose 12 and the pistol nozzle 11
If the refueling is performed by the first refueling hose 10 and the pressure refueling nozzle 9 without closing the door 23 for use, the remote control device 25 will not function reliably. That is, the electromagnetic valve 26 and the control valve 16 are always open due to the opening of the door 23, and it is impossible to close the control valve 16 by releasing the hand from the remote control device 25 on the way. And it is not possible to quickly respond to abnormalities of workers. On the other hand, in the illustrated embodiment, the control device C
The second switch 4 for detecting the storage state of the door 23
5, a first switch 4 for detecting the storage state of the door 22
Since the remote control device 4 is provided, the remote control device 25 functions reliably as described above, and erroneous operation is prevented.

[0031]

As described above, the fuel refueling vehicle according to the present invention is provided with a control device capable of detecting the stored state of the pistol nozzle and opening and closing the control valve. Not only at the time, but also automatically when the control device detects the non-storage of the pistol nozzle,
By opening the control valve of the lubrication piping,
The following effects are exhibited.

That is, when refueling with a pistol nozzle, the operation is simplified and facilitated, and the workability is improved. That is, in this fuel-fueled vehicle, when refueling with a pistol nozzle, the control valve can be automatically opened, and it is necessary to continue operating while holding the remote control device as in the above-described conventional example. Instead, it is only necessary to operate while holding only the pistol nozzle, and workability is dramatically improved. As described above, the effects exhibited by the present invention are remarkably large, for example, the problems existing in this type of conventional example are eliminated.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a fueling vehicle according to the present invention, and is an explanatory diagram of a fueling pipe, fueling equipment, a remote control device, a control device, and the like.

FIGS. 2A and 2B show a fuel refueling vehicle of the embodiment, wherein FIG. 1A is a schematic plan view of the entirety, and FIG. 2B is a schematic side view of the entirety.

FIG. 3 is a sectional view of a control valve.

FIG. 4 shows a state of refueling an aircraft by a fuel refueling vehicle.
It is a plane schematic diagram.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 fuel refueling car 2 tank 3 bottom valve 4 pump 5 filter separator (filter) 6 flow meter (meter) 7 refueling equipment 8 refueling pipe 9 pressure refueling nozzle 10 first refueling hose 11 pistol nozzle 12 second refueling hose 13 aircraft 16 Control valve 25 Remote control device C Control device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60P 3/22 B64F 3/00 B67D 5/371

Claims (1)

(57) [Claims] 1. A fuel oil loaded in a tank mounted on a vehicle is branched in parallel after passing through a bottom valve of the tank and an oil supply pipe in which oil supply devices such as a pump, a filter, and a measuring device are arranged. Either a first oiling hose with a pressure oiling nozzle or a second oiling hose with a pistol nozzle,
In a fuel refueling vehicle for refueling an aircraft, a control valve provided in the refueling pipe, a remote control device capable of opening and closing the control valve by remote manual operation,
A control device capable of detecting the storage state of the pistol nozzle and opening and closing the control valve, wherein the control valve is opened by the remote control device,
Alternatively, the fuel tank can be opened only when the control device detects that the pistol nozzle is not stored.