JP4410389B2 - Lubrication system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an oil supply system configured to insert a bill into a setting device and set an amount of oil supply when supplying a vehicle at a gas station.
[0002]
[Prior art]
For example, in a gas station or the like where a self-service measuring machine is installed, the driver himself sets up the refueling work, refuels work, and pays the refueling fee. Therefore, after the driver performs a setting operation to input a predetermined oil type, amount of oil or amount of oil to be charged using a setting device having a switch such as the type of oil to be supplied and the amount of oil to be supplied before refueling, The method is to be specified. The refueling fee settlement method includes a method of paying with cash and a method of paying with a credit card. When the settlement method is cash, the driver moves to the office of the gas station after refueling and settles the refueling fee.
[0003]
In addition, in the case of the so-called island settlement method in which a self-service metering machine is provided with a setting device for setting the amount of oil or the amount of fuel and an automatic payment machine, the refueling fee can be settled at the refueling location. . This automatic payment machine is provided with a banknote insertion part and a coin insertion part, and has a discrimination part that discriminates the type of the inserted banknote and coin, and a display part that displays the amount of money inserted.
[0004]
In the island replenishment type refueling system, when a refueling amount or a refueling amount is preset before refueling, the driver first inserts a bill (10,000 yen bill, 5,000 yen bill, etc.) into a bill insertion unit. After the amount of money received is read by the banknote reader and the amount of money is displayed on the display unit, the desired oil type (regular, high-octane, light oil, etc.) is input, and the desired oil supply amount (10 liters, 20 liters etc.) or the amount of refueling (2,000 yen, 3,000 yen, etc.) is entered, the metering machine becomes ready for refueling.
[0005]
[Problems to be solved by the invention]
In the island settlement type refueling system equipped with the automatic teller machine as described above, when presetting the refueling amount, after the driver deposits the bill, the operator operates the preset switch of the desired refueling amount to refuel amount or refueling. In order to preset the amount of money, the number of bills inserted into the automatic payment machine increases with the passage of time. For this reason, the staff at the gas station regularly collects banknotes stored in the automatic payment machine of each weighing machine.
[0006]
However, when counting the number of banknotes stored in the banknote storage box of each automatic payment machine, the number of banknotes is picked up from the deposit data stored in the management computer of the office, and the banknote storage box of each automatic payment machine The number of banknotes stored in the banknote and the number of banknotes in the deposit data must be verified, and there is a problem that it takes time and effort to call the deposit data of the management computer.
[0007]
Furthermore, if the amount of the deposited banknote cannot be identified due to a failure of the automatic teller machine, or the deposited amount is not displayed, the gas station staff will take out the banknote stored in the banknote storage part of the setting device and It is necessary to confirm that the banknote of the amount inserted by is in the banknote storage unit.
[0008]
However, although the staff at the gas station can confirm that the banknotes are in the banknote storage unit, the banknotes that the customer has deposited cannot be determined on the spot.
[0009]
Then, an object of this invention is to provide the oil supply system which solved the said subject.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the present invention has the following features.
[0011]
The present invention provides a setting device for setting information including a desired amount of fueling as a preset value;
Banknote discrimination means for identifying the type of banknote inserted as the amount of refueling, and identifying the amount of the banknote;
A banknote storage unit that stores the banknotes identified by the banknote discrimination means according to the type of the banknote;
Storage means for storing the number of banknotes stored in each banknote storage unit for each type of banknote;
A weighing machine that performs preset refueling control based on the preset value set in the setter and the amount of the banknote identified by the banknote discriminating means;
A receipt issuing unit that issues a receipt on which refueling information about the current refueling is printed when refueling by the weighing machine is completed;
In a refueling system having
Detection means that operates in connection with an operation of opening a lid provided in the banknote storage part and taking out a banknote from the banknote storage part;
A reset means for resetting the number of stored bills stored in the storage means to zero by a detection signal from the detection means;
Based on a detection signal from the detecting means, the receiving number of stored in the storage means banknotes are printed by type of the banknote Rutotomoni, time of each refueling based on the oil supply information, deposit amount, the oil supply amount is printed Receipt issuing means for issuing the receipt paper from the receipt issuing unit;
When it is detected that the lid provided in the banknote storage unit is opened, the time is stored in the banknote storage unit together with the time for each refueling, the deposit amount, and the amount of refueling. The number of banknotes stored can be compared with the number of banknotes stored in the storage means, and the correct deposit amount and the number of each banknote can be confirmed in a short time.
[0012]
Moreover, since the banknote accommodating part is provided according to the kind of each banknote, and the accommodation number according to each banknote type is memorize | stored in the memory | storage means, this invention is the number of each banknote accommodated for every some kind. Can be confirmed individually.
[0013]
Moreover, this invention resets the accommodation number of the banknote accommodated in each banknote accommodating part memorize | stored in the memory | storage means by the detection signal from a detection means, and is the number of the banknote accommodated in the banknote accommodating part. The operation for resetting the number of stored bills stored in the storage means to zero becomes unnecessary, and the user forgets to reset the storage means after collecting the bills. It can be prevented that the number of bills cannot be confirmed.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
FIG. 1 is a configuration diagram of an embodiment of an oil supply system according to the present invention.
[0016]
As shown in FIG. 1, a fueling system 10 includes a self-service fueling type measuring machine 12 installed in a fueling area 11, a setter 14 provided adjacent to the measuring machine 12, and an office 16. And a storage device 19 connected to the management computer 18. Further, the setting device 14 is connected to the management computer 18 via a communication line (SS-LAN) 20, and a part provided with an automatic payment machine 29 (see FIG. 3) that handles only banknotes as will be described later. Island settlement method is adopted. In the office 16, a liquid level gauge 25 for detecting the liquid level of a change machine 24 and an underground tank (not shown) for paying change (change of less than 1,000 yen) using coins (coins) other than banknotes. Is installed.
[0017]
The refueling area 11 is provided with a monitoring camera 21 for monitoring the surroundings of the weighing machine 12 and the setting device 14, and an image captured by the monitoring camera 21 is displayed on the monitor 23 installed in the office. Is displayed. Further, the management computer 18 is connected to a POS terminal 22 that manages the sales of oil and an external emergency stop switch 32 that stops the measuring machine 12 in the event of an emergency such as a spill of oil in the refueling area. Has been.
[0018]
FIG. 2 is a block diagram showing the overall configuration of the fueling system 10.
[0019]
As shown in FIG. 2, in the fueling system 10, four measuring machines 12 (12 _{1 to} 12 ₄ ) are installed. The management computer 18 is connected to four weighing machines 12 (12 _{1 to} 12 ₄ ) and a setting device 14 (14 _{1 to} 14 ₄ ) via a communication line (SS-LAN) 20.
[0020]
FIG. 3 is a block diagram showing a schematic configuration of the setting device 14.
[0021]
As shown in FIG. 3, the setting device 14 includes an oil type input unit 26, an oil type setting unit 28, an automatic payment machine 29, a storage lid switch 36, confirmation switch buttons 38a and 38b, and an oil type display. Unit 40, deposit amount display unit 42, unit price display unit 44, speaker 48, receipt lamp button 50, refueling lamp 51, receipt issue unit 52, change lamp 53, and control unit 54 that controls them. And have.
[0022]
The oil type input unit 26 designates the oil type (any of regular gasoline, high-octane gasoline, and light oil) supplied by the operator, and the oil type setting unit 28 inputs the oil type input by the oil type input unit 26. Is set as the oil type information to be refueled this time.
[0023]
The automatic payment machine 29 includes a banknote insertion unit 30, a banknote discrimination unit 32, a banknote return unit 33, and a banknote storage unit 34. Only bills such as 10,000 yen bills, 5,000 yen bills, and thousand yen bills are inserted into the bill insertion portion 30 before refueling. And in the banknote discrimination part 32, the banknote inserted in the banknote insertion part 30 is verified, and the money_receiving | payment amount according to the kind of banknote is detected.
[0024]
The inside of the banknote return unit 33 is partitioned so that banknotes can be stored by type, and rooms for individually storing 10,000 yen bills, 5,000 yen bills, and thousand yen bills are provided. The banknotes identified by the banknote identification unit 32 are classified by type (10,000 yen bill, 5,000 yen bill, thousand yen bill) and stored in the banknote storage unit 34. Moreover, the banknote return part 33 takes out the banknote as change from the banknote accommodated in the banknote accommodating part 34, and discharges | emits it, when there is a change by a banknote (1000 yen or more) by preset operation after money_receiving | payment.
[0025]
The staff at the gas station periodically collects the banknotes stored in the banknote storage unit 34. The automatic teller machine 29 has a key-locked lid 29a (see FIG. 4). When the lid 29a is opened, the accommodation lid switch 36 is turned on to confirm that the bill collection operation has been performed. It can be detected.
[0026]
The confirmation switch buttons 38a and 38b are selectively operated by YES or NO when the oil type displayed on the oil type display unit 40 and the deposit amount displayed on the deposit amount display unit 42 are confirmed. In addition, the confirmation switch buttons 38a and 38b have built-in lamps, and when there is a deposit as will be described later, blinks to notify the operation order.
[0027]
The receipt switch 50 lights up after the end of refueling to notify the receipt issuance from the receipt issuing unit 52. In addition, the change lamp 53 is turned on when there is change after refueling to notify the customer that there is change. And the receipt issuing part 52 issues the receipt which printed the oil kind supplied, the amount of oil supply, the amount of oil supply, and change after the end of refueling. In addition, the speaker 48 provides voice guidance for an oil type setting operation method, a deposit method, and a method for receiving change.
[0028]
In the memory 55 of the control unit 54, a receipt printing program (notification unit) that prints on the receipt the number of stored banknotes stored in the storage device (storage unit) 19 by a detection signal from the storage lid switch (detection unit) 36. A control program (reset means) for resetting the number of stored bills stored in the storage device 19 to zero by a detection signal from the storage lid switch 36 is stored.
[0029]
Next, the configuration and operation procedure of the operation panel provided in the setting device 14 will be described.
[0030]
FIG. 4 is a front view showing an example of an operation panel provided in the setting device 14.
[0031]
As shown in FIG. 4, the operation panel 56 of the setting device 14 is, from the top, (1) push the type of oil, (2) insert money, (3) confirm, (4) start refueling, (5) ▼ Operation procedures such as taking a receipt are described.
[0032]
In the column “1) Press the type of oil”, a light oil button 58, a high-octane button 60, and a regular button 62 are arranged as an oil type input unit 26 for designating the type of oil to be supplied. Further, the light oil button 58, the high-octane button 60, and the regular button 62 have built-in lamps, which are turned on to indicate that the oil type is selected when operated on as described later.
[0033]
In the column “(2) Insert money”, an automatic payment machine 29 having a bill insertion portion 30 for inserting bills and a bill return portion 33, a deposit amount display portion 42, and a unit price display portion 44 are provided. Moreover, the lid | cover 29a of the automatic payment machine 29 is normally unlocked with the key, and is unlocked and opened at the time of banknote collection. Moreover, the automatic payment machine 29 has the accommodation lid switch 36 which detects that the lid | cover 29a was opened, the banknote discrimination part 32, and the banknote accommodating part 34. FIG. And the lid | cover 29a of the automatic payment machine 29 will be obstruct | occluded and locked, if the banknote accommodated in the banknote accommodating part 34 is collect | recovered.
[0034]
In the column “(3) Confirm”, a YES confirmation switch button 38a and a NO confirmation switch button 38b are provided.
[0035]
In the column “(4) Start of refueling”, a refueling lamp 51 for flashing and informing that a refueling permission has been provided is provided.
[0036]
In the column “(5) Receipt”, a receipt switch 50, a receipt issuing unit 52, and a fishing lamp 53 are provided.
[0037]
Here, a fueling operation performed in the fueling system 10 will be described.
[0038]
An operator of a vehicle that has arrived at a gas station for refueling first performs a setting operation of the setting device 14 after stopping the vehicle in front of a vacant measuring machine 12 in the refueling area 11. Then, when the setting of the oil type and the amount of refueling by the setting device 14 is completed, the refueling nozzle of the measuring machine 12 is inserted into the refueling port (not shown) of the vehicle and refueling is started.
[0039]
Next, an operation procedure performed by a customer (driver) and a gas station supervisor (person in charge) will be described.
[0040]
FIG. 5 is a flowchart for explaining an operation procedure performed by a customer (driver) and a gas station supervisor (person in charge).
[0041]
As shown in FIG. 5, after the customer (driver) performs an oil type selection operation by turning on any of the light oil button 58, the high-octane button 60, and the regular button 62 in the setting device 14 (S <b> 11). When the banknote is inserted into the banknote insertion unit 30, the deposit amount is displayed on the deposit amount display unit 42 (S12).
[0042]
Next, the customer performs a preset setting of the fueling amount and displays a fueling amount corresponding to the preset amount of fueling (S13). If the displayed fuel amount and amount are incorrect (S14), the confirmation switch button 38b is turned on (S15). In this case, the customer starts the setting operation from the beginning.
[0043]
If the displayed fuel amount and amount are correct (S14), the confirmation switch button 38a is turned on (S16). Then, it is determined whether or not there is a change in banknotes (thousand yen or more) (S17), and when there is a change in banknotes, the banknotes as change are discharged to the banknote return unit 33 (S18). When the preset operation is completed, the fueling nozzle (not shown) is removed from the nozzle hook in the weighing machine 12 (S19) and inserted into the fueling port of the vehicle.
[0044]
Thereafter, in the office of the gas station, the management computer 18 receives an oil supply permission request signal from the measuring machine 12 and waits for an oil supply permission (S20). A staff member (monitor) at the gas station confirms the preset value set by the setting device 14 in response to the request for permission to supply fuel from the measuring machine 12 and the image around the measuring machine 12 displayed on the monitor 23 to allow fuel supply. Is output (S21).
[0045]
In the weighing machine 12, when the refueling permission signal is received, the refueling lamp 51 blinks, a pump (not shown) is activated, and refueling is started (S22). Then, when the preset amount of oil is supplied, the pump is stopped (S23). When the customer returns the refueling nozzle to the nozzle hook of the measuring machine 12 (S24), the setting device 14 obtains the difference between the refueling amount and the deposit amount and determines the presence or absence of change (thousand yen or less) (S25).
[0046]
When there is change (thousand yen or less), the receipt lamp button 50 is blinked and a receipt is issued from the receipt issuing unit 52 (S26). Thereafter, in the office of the gas station, the staff (monitor) inputs the slip number to the change machine 24 and permits the change to be paid out (S27).
[0047]
After refueling, the customer receives change from the change machine 24 (S28). This completes the refueling and settlement process (S29).
[0048]
If there is no change in S25, the receipt lamp button 50 is blinked (S30). When the customer presses the receipt lamp button 50 to turn it on (S31), a receipt is issued from the receipt issuing unit 52 (S32). This completes the refueling and settlement process (S33).
[0049]
In addition, customers in the S31 is when you are not pressing the receipt lamp button 50, has passed to see if Taka 30 seconds (S34). If the receipt lamp button 50 is not pressed even after 30 seconds have elapsed, the receipt lamp button 50 is turned off (S35), and the refueling and settlement process ends.
[0050]
Next, the interruption process performed when collect | recovering the banknote accommodated in the said banknote accommodating part 34 is demonstrated.
[0051]
FIG. 6 is a flowchart for explaining an interrupt process executed by the control unit 54 of the setting device 14 and the management computer 18 at the time of bill collection.
[0052]
As shown in FIG. 6, the controller 54 of the setting device 14 turns on the storage lid switch 36 when the lid 29a of the automatic teller machine 29 is opened (S41), and sends a refueling information request signal to the management computer 18. Transmit (S42).
[0053]
When receiving the refueling information request signal (S51), the management computer 18 transmits the refueling information (oiling time, slip number, deposit amount, oil type, oil amount, etc.) stored in the storage device 19 to the setting device 14. (S52).
[0054]
When the setter 14 receives the refueling information (the refueling time, slip number, deposit amount, oil type, oil amount, etc.) transmitted from the management computer 18 (S43), the refueling information is printed on the receipt paper and a receipt issuing unit. A receipt is issued from 52 (S44). Then, when printing of the fuel supply information is completed, a print completion signal of the fuel supply information is transmitted to the management computer 18 (S45).
[0055]
When the management computer 18 receives the print end signal transmitted from the setting device 14 (S53), it resets the fueling information (fueling time, slip number, deposit amount, oil type, fueling amount, etc.) stored in the storage device 19. (S54). Subsequently, the number of each banknote stored in the banknote storage unit 34 and the count value of the total amount are transmitted to the setting device 14 (S55).
[0056]
When the setting device 14 receives the data of the number and the total number of each bill transmitted from the management computer 18 (S46), it prints the number and the total amount of each bill on the receipt paper and receives the receipt from the receipt issuing unit 52. Is issued (S47). When the printing of the number and the total amount for each banknote is completed, a printing end signal of information for each banknote is transmitted to the management computer 18 (S48).
[0057]
When the management computer 18 receives a print end signal of information for each banknote (S56), it resets the number of sheets for each banknote and the count value of the total amount stored in the storage device 19 (S54).
[0058]
In this way, the staff at the filling station opens the cover 29a of the automatic payment machine 29 and collects the banknotes stored in the banknote storage unit 34, so that the refueling information (refueling time, slip number, deposit amount, Oil type, refueling amount, etc.) and a receipt (see FIG. 7) on which the number of each banknote and the total number of sheets are printed are automatically issued, so that each banknote stored in the banknote storage unit 34 on the spot It is possible to check whether the number matches the number printed for each bill printed on the receipt.
[0059]
For example, when a customer inserts a banknote but cannot perform presetting, the staff at the gas station may have more sheets for each banknote stored in the banknote storage unit 34 than for each banknote printed on the receipt. If it is confirmed, it is possible to return to the customer the banknote whose number does not match because it is determined that the inserted banknote is not recognized and is stored in the banknote storage unit 34.
[0060]
When the refueling information (refueling time, slip number, deposit amount, oil type, refueling amount, etc.) and the number and total amount of each banknote are printed on the receipt paper, the refueling information stored in the storage device 19 is automatically Because it resets automatically, it is possible to prevent the staff at the filling station from forgetting the reset operation and mixing the previous information with the refueling information printed on the receipt at the next collection, and the receipt paper when collecting banknotes The number of each banknote printed on is updated to an accurate value. Therefore, at the time of banknote collection, the number of each banknote stored in the banknote storage unit 34 can be confirmed each time using the number of each banknote printed on the receipt as a reference value.
[0061]
FIG. 7 is a diagram illustrating an example of a receipt from the receipt issuing unit 52.
[0062]
As shown in FIG. 7, the receipt 70 issued at the time of banknote collection includes (1) refueling point number, (2) collection slip number, and (3) data for each refueling (time, slip number, deposit amount, oil type ), (4) line feed for every 50 cases, (5) deposit amount for each bill, (6) number of each bill, and (7) total amount of all bills.
[0063]
Therefore, the staff at the gas station has the number of each bill described in the receipt 70 (9,000 yen bills, 15 thousand yen bills, 102 thousand yen bills) and each bill accommodated in the bill accommodating part 34. The number of bills is compared to check whether they match. When the number of each banknote matches the number of each banknote described in the receipt 70, the gas station staff member determines that there is no abnormality and closes and locks the lid 29a of the automatic teller machine 29. To do.
[0064]
In addition, since the staff at the gas station can easily check the past payment time and payment amount from the data (time, slip number, deposit amount, oil type, amount of oil etc.) for each refueling described in the receipt 70, for example, You can also check for customer fraud complaints that you haven't made a payment but can't preset.
[0065]
In the above embodiment, when the lid 29a of the automatic payment machine 29 is opened, the refueling information (the refueling time, the slip number, the deposit amount, the oil type, the refueling amount, etc.), the number of each banknote, and the total amount are received. Although the case of printing on a sheet has been described as an example, the present invention is not limited to this, and for example, refueling information, the number of sheets for each banknote, the total amount, and the like may be displayed on a liquid crystal display or the like provided in the setting device 14.
[0066]
Moreover, in the said embodiment, when the lid | cover 29a of the automatic teller machine 29 was opened, the case where the refueling information, the number of sheets for each banknote, and the total amount were printed on the receipt paper was taken as an example. For example, if each banknote accommodated in the banknote accommodating part 34 is taken out, you may make it print refueling information, the number of sheets for each banknote, and a total amount on a receipt paper.
[0067]
Moreover, in the said embodiment, although the memory | storage device 19 which memorize | stores information, such as refueling information, the number of sheets for every banknote, and a total amount, was taken as an example,
Of course, the present invention can be applied to a configuration in which the storage device 19 is connected to the setting device 14, for example.
[0068]
【The invention's effect】
As described above, according to the present invention, the detection unit that operates in association with the operation of opening the lid provided in the banknote storage unit and taking out the banknote from the banknote storage unit, and the detection signal from the detection unit to the storage unit and resetting means for resetting the capacity allowed for each stored banknotes are zero, based on a detection signal from the detection means, the counter value of the banknotes stored in the storage means is printed by type of the banknote Rutotomoni, refueling information A receipt issuing means for issuing a receipt paper on which the time, amount of money to be supplied, and the amount of oil to be supplied are issued from the receipt issuing unit, based on which it is detected that the lid provided in the banknote storage unit has been opened. , the time of refueling each in situ, deposit amount, the oil supply amount with can match the number of accommodated bill to the bill housing part and accommodates the number of stored in the storage unit bill, short time accurate deposit amount and each paper You can confirm the number of. Therefore, it is possible to confirm whether or not there is a failure on the spot even if a complaint about depositing banknotes is received from a customer.
[0069]
Moreover, according to this invention, since the banknote accommodating part is provided according to the kind of each banknote, and the accommodation number according to the kind of each banknote is memorize | stored in the memory | storage means, each banknote accommodated for every some kind Can be confirmed individually. Therefore, even if the customer tries to refuel without depositing money, the customer's fraud can be detected by confirming the deposit amount and the number of bills.
[0070]
Moreover, according to this invention, in order to reset the accommodation number of the banknote accommodated in each banknote accommodating part memorize | stored in the memory | storage means with the detection signal from a detection means, the number of the banknote accommodated in the banknote accommodating part is reset. The operation for resetting the number of stored bills stored in the storage means to zero becomes unnecessary, and the user forgets to reset the storage means after collecting the bills. It can be prevented that the number of bills cannot be confirmed.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an embodiment of an oil supply system according to the present invention.
FIG. 2 is a block diagram showing an overall configuration of an oil supply system 10;
FIG. 3 is a block diagram showing a schematic configuration of a setting device 14;
4 is a front view showing an example of an operation panel provided in the setting device 14. FIG.
FIG. 5 is a flowchart illustrating an operation procedure performed by a customer (driver) and a gas station supervisor (person in charge).
FIG. 6 is a flowchart for explaining an interrupt process executed by the control unit 54 and the management computer 18 of the setter 14 at the time of bill collection.
7 is a diagram illustrating an example of a receipt from a receipt issuing unit 52. FIG.
[Explanation of symbols]
10 supply system ₁₂ (12 1 _{to 12} 4) weighing machine ₁₄ (14 1 _{to 14} 4) setter 18 management computer 24 change machine 29 ATM 30 bill insertion portion 32 a bill discriminating unit 33 banknote return portion 34 bill housing part 36 Receiving lid switch 38a, 38b Confirmation switch button 42 Deposit amount display unit 52 Receipt issuing unit 54 Control unit 56 Operation panel 50 Receipt lamp button

Claims (1)

A setter for setting information including a desired amount of refueling as a preset value;
Banknote discrimination means for identifying the type of banknote inserted as the amount of refueling, and identifying the amount of the banknote;
A banknote storage section for storing banknotes identified by the banknote discrimination means according to the type of the banknote;
Storage means for storing the number of banknotes stored in each banknote storage unit for each type of banknote;
A weighing machine that performs preset refueling control based on the preset value set in the setter and the amount of the banknote identified by the banknote discriminating means;
A receipt issuing unit that issues a receipt on which refueling information about the current refueling is printed when refueling by the weighing machine is completed;
In a refueling system having
Detection means that operates in connection with an operation of opening a lid provided in the banknote storage part and taking out a banknote from the banknote storage part;
A reset means for resetting the number of stored bills stored in the storage means to zero by a detection signal from the detection means;
Based on a detection signal from the detecting means, the receiving number of stored in the storage means banknotes are printed by type of the banknote Rutotomoni, time of each refueling based on the oil supply information, deposit amount, the oil supply amount is printed Receipt issuing means for issuing the receipt paper from the receipt issuing unit;
An oil supply system comprising:

Images