CN212503965U

CN212503965U - Automatic oiling machine for catenary chain transportation system

Info

Publication number: CN212503965U
Application number: CN202020940803.6U
Authority: CN
Inventors: 王雪坤; 于韶东
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-09
Anticipated expiration: 2030-05-27

Abstract

The utility model provides an automatic tanker aircraft for pendulum chain fortune system relates to tanker aircraft technical field. The device has no mechanical contact, high response speed, good working performance, low working noise and higher working reliability and stability. The automatic oiling machine mainly comprises a control unit, a driving unit and an execution unit. The control unit is used for controlling the driving unit to drive the execution unit to refuel the suspension chain mechanical transportation system. The driving unit comprises a field effect tube array, and the field effect tube array is electrically connected with the control unit. The field effect transistor has high response speed and no mechanical contact, so that the situation of insensitive response can not occur even if the working time is long, and the problem of high noise of opening and closing the mechanical contact when the relay works can be well solved; meanwhile, compared with the situation that mechanical abrasion is large due to frequent opening and closing of mechanical contacts when a relay works, the field effect transistor can well avoid the problem, so that the service life is long and the use stability is high.

Description

Automatic oiling machine for catenary chain transportation system

Technical Field

The utility model relates to an tanker aircraft technical field particularly, relates to an automatic tanker aircraft for pendulum chain fortune system.

Background

At present, most of automatic oiling machines adopt a control device to control the working state of the automatic oiling machine. The common control device adopts a relay array to control a driving unit of the automatic oiling machine so as to control the working state of the automatic oiling machine. However, when the relay array is used for control, the control function is realized by controlling the action of the mechanical contact of the relay, the working efficiency is low, the response speed is low, the noise is high during the opening and closing of the mechanical contact, the problem of shaking can also occur, the mechanical abrasion is high, the service life of the contact is short, and the use reliability is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic oiling machine for pendulum chain machine fortune system, it can be accurate, high-efficient, stably refuel for pendulum chain machine fortune system.

The embodiment of the utility model is realized like this:

an automatic oiling machine comprises a control unit, a driving unit and an execution unit. The control unit is used for controlling the driving unit to drive the execution unit to refuel the suspension chain mechanical transportation system. The driving unit comprises a field effect tube array, and the field effect tube array is electrically connected with the control unit. Compared with a relay, the field effect transistor has the advantages of fast response, low noise, high working stability and the like, has longer service life, and can better improve the working performance of the automatic oiling machine.

In some embodiments of the present invention, the execution unit includes a mounting platform, a base, a fuel nozzle, a fuel tank, and a first solenoid valve. The mounting platform is adjacent to the catenary chain transportation system and provides a fixed position for the automatic oiling machine. The base is installed in mounting platform, and the nozzle sets up in the base. The oil filling gun is communicated with the oil tank through an oil pipe. The first electromagnetic valve is arranged on the oil gun, and the control unit is configured to control the opening and closing of the oil gun by controlling the opening and closing state of the first electromagnetic valve.

In some embodiments of the present invention, the mounting platform is provided with a guide rail along the direction of movement of the swing rod of the catenary chain conveyor system, and the base is mounted on the guide rail, the guide rail being slidably connected to the base. The base can slide on the guide rail to drive the oil gun to move, avoid producing the relative displacement in the guide rail setting direction between oil gun and the pendulum rod, make the oil gun finally can stably link to each other with the pendulum rod, thereby guarantee the stability and the reliability of refueling.

In some embodiments of the present invention, the two ends of the guide rail are provided with stoppers. The dog can restrict the displacement range of base, avoids the base to remove too far, tears wire and oil pipe apart, reduces the emergence probability of incident.

In some embodiments of the invention, the drive unit further comprises a first hydraulic cylinder. First pneumatic cylinder is fixed in mounting platform, and the telescopic link of first pneumatic cylinder links to each other with the base, and the flexible direction of first pneumatic cylinder is unanimous with the direction that sets up of guide rail. The first hydraulic cylinder stretches and retracts to drive the base to move on the guide rail, and the relative positions of the base and the swing rod are kept consistent. The first hydraulic cylinder is provided with a second electromagnetic valve, and the control unit is configured to control the expansion and contraction of the first hydraulic cylinder by controlling the on-off state of the second electromagnetic valve.

In some embodiments of the present invention, the drive unit further comprises a second hydraulic cylinder, the second hydraulic cylinder being fixed to the base. The telescopic link of second pneumatic cylinder links to each other with the nozzle, and the flexible direction of second pneumatic cylinder is towards the pendulum rod, and the second pneumatic cylinder is used for controlling the nozzle and is close to or keeps away from the pendulum rod. The second hydraulic cylinder is provided with a third electromagnetic valve, and the control unit is configured to control the expansion and contraction of the second hydraulic cylinder by controlling the open/close state of the third electromagnetic valve.

The utility model discloses an in some embodiments, mounting platform is the fretwork setting to avoid the oil that the nozzle leaks out to accumulate on mounting platform, influence the slip of base and corrode spare part even.

In some embodiments of the present invention, the automatic fuel dispenser further comprises a recycling unit, the recycling unit comprising a recycling bin. The recycling box is located below the mounting platform and the swing chain conveyor system. The collection box can collect the oil that drips from mounting platform fretwork department, keeps operational environment's cleanliness factor, and the oil of retrieving simultaneously can be handled and recycled, reduces the wasting of resources.

The utility model discloses an in some embodiments, the outer wall that the nozzle is close to the one end of pendulum rod is provided with and keeps off a class spare. Keep off the oil that the class spare can avoid the nozzle to leak out and flow back to the second pneumatic cylinder along the nozzle, avoid the operating condition of second pneumatic cylinder to receive the influence.

In some embodiments of the present invention, the automatic fuel dispenser further comprises an input unit for inputting information and transmitting the information to the control unit, and the input unit comprises a touch screen. The touch screen has the advantages of long service life, sensitive response and capability of visually displaying operation settings and steps during operation.

The embodiment of the utility model provides an at least, have following advantage or beneficial effect:

the utility model provides an automatic tanker aircraft for pendulum chain fortune system, it does not have mechanical contact, and response speed is fast, the working property is good, and the work small in noise, the reliability and the stability of work are all higher. The automatic oiling machine mainly comprises a control unit, a driving unit and an execution unit. The control unit is used for controlling the driving unit to drive the execution unit to refuel the suspension chain mechanical transportation system. The driving unit comprises a field effect tube array, and the field effect tube array is electrically connected with the control unit. The response speed of the field effect transistor is high, and no mechanical contact exists, so that the situation of insensitive response can not occur even if the working time is long, and the problem of high noise of opening and closing the mechanical contact when the relay works can be well solved; compared with a relay in operation, the field effect transistor can well avoid the problem due to the fact that mechanical abrasion is large due to frequent opening and closing of the mechanical contacts, and therefore the service life is long and the service stability is high. The driving unit adopts the field effect transistor array to respond to the control unit, so that the automatic oiling machine has good working performance, low working noise and higher working reliability and stability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an automatic fuel dispenser according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of internal modules of the automatic fuel dispenser according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a fuel nozzle according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the automatic oiling machine when the oiling gun provided by the embodiment of the present invention is close to the swing rod;

fig. 5 is a schematic structural view of the automatic oiling machine according to the embodiment of the present invention when the automatic oiling machine starts to oil;

fig. 6 is a schematic structural view of the automatic oiling machine provided by the embodiment of the present invention when the oiling is just completed.

Icon: 100-automatic fuel dispenser; 120-a drive unit; 122-a first hydraulic cylinder; 124-second hydraulic cylinder; 140-an execution unit; 141-a guide rail; 142-a mounting platform; 143-a stopper; 144-a base; 146-fuel gun; 147-a baffle; 148-recovery tank.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "left", "right", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description, and the description is simplified, but the indication or suggestion that the indicated device or element must have a specific position, be constructed in a specific position, and be operated, and thus, the present invention should not be construed as being limited. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the term "horizontal" and the like, if present, does not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. Such as "horizontal" simply means that its direction is relatively more horizontal and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of an automatic fuel dispenser 100, and fig. 2 is a schematic structural view of internal modules of the automatic fuel dispenser 100. The present embodiment provides an automatic fuel dispenser 100 that can accurately, efficiently, and stably dispense fuel for a catenary airborne system. The existing automatic control oiling machine generally adopts a relay array to respond to a control signal so as to control the working state of the oiling machine, but when the relay array is adopted for control, the control function is realized by the action of a mechanical contact of a control relay, the working efficiency is low, the response speed is low, the noise is large when the mechanical contact is opened and closed, the problem of shaking can also occur, the mechanical abrasion is large, the service life of the contact is short, and the use reliability is not high. The automatic fuel dispenser 100 provided in the present embodiment can solve the above problems well.

The automated fuel dispenser 100 is adjacent to a catenary locomotive system. The automatic fuel dispenser 100 mainly includes a control unit (not shown), a driving unit 120, and an execution unit 140. The control unit is used for controlling the driving unit 120 to drive the execution unit 140 to refuel the catenary airplane system.

In this embodiment, the control unit mainly includes a CPU. The CPU adopts a commercial domestic STC15F2K60S2 series single-chip microcomputer. The CPU of the type has the characteristics of high running speed, strong interference resistance and the like, is stable to control, and can better enhance the working stability of the automatic oiling machine 100.

The execution unit 140 mainly includes a mounting platform 142, a base 144, a fuel nozzle 146, a fuel tank (not shown), and a first solenoid valve (not shown). Mounting platform 142 is adjacent to the catenary aircraft system and provides a fixed location for automated fuel dispenser 100. The base 144 is mounted to the mounting platform 142, and the fuel gun 146 is disposed on the base 144. The fuel gun 146 communicates with the fuel tank through a fuel line (not shown). The first solenoid valve is disposed on the fuel gun 146, and the control unit is configured to control the opening and closing of the fuel gun 146 by controlling the opening and closing state of the first solenoid valve.

The mounting platform 142 is adjacent to the catenary conveyor system. In this embodiment, two parallel guide rails 141 (i.e. horizontal direction in fig. 1) are disposed on the mounting platform 142 along the moving direction of the swing link chain conveyor system, the base 144 is mounted on the guide rails 141, and the guide rails 141 are slidably connected with the base 144. The base 144 can slide on the guide rail 141 to drive the oil gun 146 to move left and right, so that the oil gun 146 can be always aligned with the swing rod before the oil filling is completed, the oil gun 146 can be stably connected with the swing rod finally to fill oil, and the stability and reliability of the oil filling work of the automatic oil filling machine 100 are ensured. Of course, in other embodiments, the number of the guide rails 141 may be one, or may be a plurality of guide rails such as three or four, provided that the base 144 can be stably attached to the guide rails 141 and can smoothly slide.

Further, stoppers 143 are provided at both ends of the two guide rails 141. The stop 143 has a limiting function, and can limit the moving range of the base 144, so as to prevent the base 144 from moving too far and breaking the lead and the oil pipe connected to the automatic oiling machine 100, thereby reducing the occurrence probability of safety accidents.

Mounting platform 142 is the fretwork setting (not shown in the figure) to avoid the oil that nozzle 146 leaks to accumulate on mounting platform 142, influence the slip of base 144 and even lead to the fact the corruption to spare part, promote automatic tanker aircraft 100's cleanliness factor and use travelling comfort.

The bottom of the mounting platform 142 is also provided with a recovery tank 148. The recovery tank 148 is located below the mounting platform 142 and the catenary conveyor system. The recycling bin 148 can collect the oil discharged from the hollow part of the upper mounting platform 142, and the cleanliness of the working environment is kept. Meanwhile, the recovered oil can be treated and reused, and resource waste is reduced.

Referring to fig. 3, fig. 3 is a schematic structural diagram of the fuel nozzle 146. Further, the outer wall of the fuel nozzle 146 near one end of the swing lever is provided with a flow blocking member 147. The baffle 147 prevents oil leaking from the fuel gun 146 from flowing back along the outer wall of the fuel gun 146 to the base 144, which can affect the operating condition of the automated fuel dispenser 100.

Please refer to fig. 1 and fig. 2 again. In this embodiment, the driving unit 120 mainly includes a field effect transistor array, and the field effect transistor array is electrically connected to the control unit. The control unit sends a designated signal, and the fet array responds accordingly according to the received signal, thereby controlling the execution unit 140, and thus changing the operating state of the automatic fuel dispenser 100. The field effect transistor has high response speed, and because no mechanical contact is arranged, the situation of insensitive response can not occur even if the working time is long, the working stability is high, and the problem of high noise of opening and closing the mechanical contact when the relay works can be well solved; on the other hand, compared with the situation that the mechanical abrasion is large due to frequent opening and closing of the mechanical contact when the relay works, the field effect transistor can well avoid the problem, so that the service life is long and the service stability is high. The driving unit 120 responds to the control unit by using the fet array, so that the automatic fuel dispenser 100 has good working performance, low working noise, and high reliability and stability of operation.

In this embodiment, the field effect transistor is of an IRF640 type. The field effect transistor of the type has the advantages of high conversion rate, simple driving, no lead and environmental protection, and is very suitable for industry and commerce. In other embodiments, the fet may be of other types, as long as the automatic fuel dispenser 100 has fast response, high stability and accurate position.

The drive unit 120 further comprises a first hydraulic cylinder 122. The first hydraulic cylinder 122 is fixed to the mounting platform 142, an expansion rod of the first hydraulic cylinder 122 is connected to the base 144, and an expansion direction of the first hydraulic cylinder 122 is identical to a direction in which the guide rail 141 is disposed (i.e., a left-right direction in fig. 1). The first hydraulic cylinder 122 extends and retracts to drive the base 144 and the fuel nozzle 146 to move on the guide rail 141, so that the relative positions of the base 144 and the swing rod are kept consistent. The first hydraulic cylinder 122 is provided with a second electromagnetic valve (not shown in the figure), and the control unit controls the expansion and contraction of the first hydraulic cylinder 122 by controlling the on-off state of the second electromagnetic valve, so as to control the position of the oil gun 146 in the left-right direction, so that the relative position of the oil gun 146 and the swing rod in the left-right direction in fig. 1 is kept unchanged, and the oil gun 146 can conveniently fill oil for the swing rod.

The driving unit 120 further includes a second hydraulic cylinder 124, and the second hydraulic cylinder 124 is fixed to the base 144. The telescopic rod of the second hydraulic cylinder 124 is connected with the oil gun 146, the telescopic direction of the second hydraulic cylinder 124 faces the swing rod (namely, the up-down direction in fig. 1), the second hydraulic cylinder 124 drives the oil gun 146 to be close to or far away from the swing rod through telescopic movement, so that the oil gun 146 is close to the swing rod to carry out an oil filling process, and the oil gun 146 is separated from the swing rod after oil filling is completed. The second hydraulic cylinder 124 is provided with a third electromagnetic valve (not shown in the figure), and the control unit controls the expansion and contraction of the second hydraulic cylinder 124 by controlling the on-off state of the third electromagnetic valve, so as to control the oil filling process of the oil gun 146.

In other embodiments, the hydraulic cylinder used in the present embodiment may be replaced with a device that can reciprocate, such as an air cylinder, as long as the corresponding component can be driven to reciprocate. And the automatic fuel dispenser 100 of the present embodiment only includes one fuel gun 146, in other embodiments, the number of the fuel guns 146 may be two, three or a plurality of the rest number, as long as the fuel can be supplied to the catenary airplane system.

The automatic fuel dispenser 100 also includes an input unit. The user can input information through the input unit, and the input unit transmits the input information to the control unit so that the control unit can make corresponding control. The input unit mainly comprises a touch screen, the touch screen is long in service life and sensitive in response, the touch screen enables input and display to be integrated, operation setting and steps can be displayed visually during operation, and the use comfort of the automatic oiling machine 100 is greatly improved. In the embodiment, the touch screen adopts a domestic serial port screen ceramic crystal K0 series, and the touch screen of the type has simple design and self-provided EEPROM storage unit, so that the structure of the automatic oiling machine 100 can be further simplified without an external storage module.

The automatic fuel dispenser 100 further includes a sensing unit and a transmission unit. The sensing unit is used for determining the position information of the driving unit 120, the executing unit 140 and the swing rod, and transmitting the position information to the control unit through the transmission unit. The control unit controls the automatic fuel dispenser 100 accordingly based on the received information.

The sensing unit mainly comprises a position sensor, the position sensor mainly collects position information of the first hydraulic cylinder 122, the second hydraulic cylinder 124 and the swing rod and transmits the position information to the transmission unit, and the relative position of the oil gun 146 and the swing rod is determined through the relevant information of the extension lengths of the first hydraulic cylinder 122 and the second hydraulic cylinder 124 and the movement position of the swing rod.

The transmission unit mainly comprises an optocoupler array. The optical coupler has the advantages of small volume, long service life and no contact. The anti-interference capability is strong, the output and the input are insulated, signals are transmitted in a single direction, the isolation effect on input and output electric signals is good, and the digital circuit is very suitable for digital circuits.

Referring to fig. 1, 4, 5 and 6, fig. 4 is a schematic structural view of the automatic fuel dispenser 100 when the fuel gun 146 approaches the swing link, fig. 5 is a schematic structural view of the automatic fuel dispenser 100 when the automatic fuel dispenser 100 starts to refuel, and fig. 6 is a schematic structural view of the automatic fuel dispenser 100 when the automatic fuel dispenser 100 finishes refueling.

The working principle of the automatic fuel dispenser 100 is as follows:

when the swing lever moves to a designated position at a designated speed (at which the swing lever is exactly aligned with the fuel gun 146), the sensing unit transmits a corresponding signal to the control unit, and the actuating unit 140 starts moving from an initial state (as shown in fig. 1) under the control of the control unit.

The control unit controls the first hydraulic cylinder 122 to extend at a designated speed, so that the base 144 and the fuel nozzle 146 move to the right in fig. 1 at the same speed as the swing link, and the relative positions of the base 144 and the swing link are kept unchanged. At the same time, the second hydraulic cylinder 124 begins to extend, driving the fuel nozzle 146 closer to the swing link (as shown in fig. 4) until the swing link moves to the next designated position (i.e., the position shown in fig. 5). During the movement of the rocker from the position shown in fig. 1 to the position shown in fig. 5, the fuel nozzle 146 is always aligned with the rocker and the fuel nozzle 146 comes closer to the rocker.

When the rocker is moved to the next designated position, the fuel nozzle 146 is just in contact with the rocker (as shown in FIG. 5). At this time, after the control signal receives the position signal transmitted by the sensing unit, the second hydraulic cylinder 124 is controlled to stop extending, and at the same time, the first hydraulic cylinder 122 is controlled to continue extending at a specified speed, so as to maintain the relative position state of the fueling gun 146 and the swing link unchanged. At the same time the first solenoid valve opens under the control of the control unit and the fuel gun 146 begins to charge the rocker until the rocker continues to move to the next designated position (i.e., the position shown in fig. 6). The fuel gun 146 maintains the refueling state during the movement of the swing lever from the position shown in fig. 5 to the position shown in fig. 6.

When the rocker continues to move to the next designated position (i.e., the position shown in FIG. 6), the fuel gun 146 completes the refueling process. At this time, after the control signal receives the position signal transmitted by the sensing unit, the first electromagnetic valve is controlled to close, and the oil gun 146 stops oiling. The first and second

hydraulic cylinders

122, 124 are ready to retract. The base 144 and the fuel nozzle 146 sequentially pass through the position states shown in fig. 5 and 4 from the position state shown in fig. 6 and then return to the initial state, i.e., the position state shown in fig. 1.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The automatic oiling machine for the catenary locomotive transportation system is characterized by comprising a control unit, a driving unit and an execution unit, wherein the control unit is used for controlling the driving unit to drive the execution unit to carry out oiling on the catenary locomotive transportation system, the driving unit comprises a field effect transistor array, and the field effect transistor array is electrically connected with the control unit.

2. The automatic fuel dispenser according to claim 1, wherein said actuator unit comprises a mounting platform adjacent to said catenary aircraft system, a base mounted to said mounting platform, a fuel gun disposed at said base, said fuel gun in communication with said fuel tank via a fuel line, and a first solenoid valve disposed at said fuel gun, said control unit being configured to control opening and closing of said fuel gun by controlling an on-off state of said first solenoid valve.

3. The automatic fuel dispenser of claim 2, wherein said mounting platform has a guide track disposed thereon along a direction of movement of a pendulum of said catenary conveyor system, said base being mounted to said guide track, said guide track being slidably coupled to said base.

4. The automatic fuel dispenser of claim 3, wherein said rail is provided with stops at both ends.

5. The automatic fuel dispenser according to claim 4, wherein said drive unit further comprises a first hydraulic cylinder fixed to said mounting platform, a telescopic rod of said first hydraulic cylinder being connected to said base, said first hydraulic cylinder being provided with a second solenoid valve, a direction of extension and retraction of said first hydraulic cylinder being coincident with a direction of arrangement of said guide rail, said control unit being configured to control extension and retraction of said first hydraulic cylinder by controlling an open/close state of said second solenoid valve.

6. The automatic fuel dispenser according to claim 5, wherein said drive unit further comprises a second hydraulic cylinder fixed to said base, said second hydraulic cylinder being provided with a third solenoid valve, a telescopic rod of said second hydraulic cylinder being connected to said fueling gun, said second hydraulic cylinder being adapted to control said fueling gun to approach or move away from said rocker, said control unit being configured to control extension and retraction of said second hydraulic cylinder by controlling an open/close state of said third solenoid valve.

7. The automated fuel dispenser of any one of claims 2-6, wherein said mounting platform is a hollowed out arrangement.

8. The automated fuel dispenser of claim 7, further comprising a recovery unit comprising a recovery tank, said recovery tank being located below said mounting platform and said catenary airplane system.

9. The automatic fuel dispenser according to any one of claims 3 to 6, wherein a flow blocking member is provided on an outer wall of an end of said fuel gun adjacent to said swing lever.

10. The automatic fuel dispenser of claim 9, further comprising an input unit for inputting information and communicating to said control unit, said input unit comprising a touch screen.