JP2005313901A - Oiler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oiler which eliminates fractions of oiling charges and of an amount of oiling. <P>SOLUTION: The oiler (1) comprises an oiling pipe (3) having a pump (4), a main valve (5), and a flowmeter (7), an oiling nozzle (10) attached to the front end of an oiling hose (8) connected to the oiling pipe (3), and a controller (15) which controls oiling. The oiling nozzle (10) has a negative pressure generating part (38), a negative pressure sensor (9) which detects a negative pressure generated at the negative pressure generating part (38) when detecting bubbles in an oil port and outputs a negative pressure signal, and a valve (33) which closes gradually when detecting the bubbles in the oil port. The controller (15) has a control means which receives the negative pressure signal from the negative pressure sensor (9), calculates a fractional sum of an oiling charge and the fractional amount of oiling that corresponds to the fractional sum, and closes the main valve (5) when the calculated fractional amount of oil is supplied. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fuel supply device that supplies fuel oil to an automobile.

  Since the refueling unit price is set in units of 1 yen, the refueling fee is in units of 1 yen. Customers who pay the refueling fee often pay with banknotes, and the change is in units of 1 yen. Therefore, it is necessary to prepare a large amount of change as a change at the gas station, and a large amount of change is collected for customers who receive the change. These coins are inconvenient for both parties.

When refueling an automobile fuel tank, there is a refueling device that controls the valve mechanism in stages so that the fuel supply amount is not fractional when the liquid level in the tank is close to the upper limit and fueling continues ( Patent Document 1).
However, in this refueling device, although the fraction of the amount of liquid supply does not appear, there is a case where, for example, a change of 1 yen unit that the customer does not want is paid out, and the amount of oil desired by the customer cannot be refueled.
In addition, when refueling an automobile fuel tank, if there is a difference between the amount charged into the banknote discriminator and the refueling fee, the banknote corresponding to the difference is paid out or the difference is recorded on a card-like recording medium. There is a fueling device (see Patent Document 2).
However, this refueling device may be inconvenient for customers who want to change with coins of, for example, 10 yen or more, and cannot refuel the customer's desired refueling amount.

Japanese Patent Publication No. 63-17719 JP-A-6-231360

  The present invention has been made in view of the above, and an object of the present invention is to provide an oil supply device that does not generate fractions in the fuel charge and an oil supply device that does not generate fractions in the amount of oil supplied.

  According to the present invention, a pump (4), a main valve (5), and a flow meter (7) are interposed in an oil supply pipe (3), and an oil supply nozzle is provided at the tip of an oil supply hose (8) connected to the oil supply pipe (3). In the fueling device (1) provided with the control device (15) provided with (10) and controlling the fueling, the fueling nozzle (10) is provided with a negative pressure generating part (38) to detect bubbles in the fueling port. A negative pressure sensor (9) for detecting the negative pressure of the negative pressure generating part (38) and outputting a negative pressure signal when it is detected, and a valve (33) that closes gradually when bubbles in the fuel filler port are detected The control device (15) receives a negative pressure signal from the negative pressure sensor (9), calculates a fractional amount of the fuel charge, calculates a fractional amount corresponding to the fractional amount, and computes the fractional amount Is provided with a control means for closing the main valve (5) when refueling.

  The control device (15) receives the integer amount signal from the integer amount button (26) of the keyboard (14), opens the main valve (5), calculates the higher fraction of the refueling fee, and corresponds to the fraction amount. Control means for closing the main valve (5) when the calculated end quantity is supplied and when the calculated end quantity is supplied is provided.

  Further, the control device (15) receives the integer amount signal from the integer amount button (27) of the keyboard (14), opens the main valve (5), calculates the end quantity of the oil supply amount, and calculates the calculated end quantity. Is provided with a control means for closing the main valve (5) when refueling.

  In the present invention, the oil supply pipe (3) is provided with a pump (4), a main valve (5), and a flow meter (7), and oil is supplied to the tip of an oil supply hose (8) connected to the oil supply pipe (3). In the fueling device (1) provided with the nozzle (10) and the control device (15) for controlling fueling, the control device (15) receives a preset amount signal from the integer preset button (28) of the keyboard (14). And a control means for closing the main valve (5) by a preset amount.

  Further, according to the present invention, in any one of the above inventions, the auxiliary valve (6) connected in parallel to the main valve (5) is provided, and the control device (15) receives a negative pressure signal from the negative pressure sensor (9). Or a control means for closing the main valve (5) just before the preset amount, and closing the sub-valve (6) when the calculated end quantity or preset amount is supplied.

1) Since there is no fraction in the refueling fee, there is no need to prepare a lot of change at the filling station. In addition, many coins are not collected by customers. And refueling charges can be settled quickly.
2) By pressing the integer amount button, refueling is automatically performed by rounding up to the nearest 100 yen, so it is possible to handle customers who think that 10 yen and 50 yen are small.
3) By pushing the integer amount button, refueling is automatically performed by rounding up fractions of liters or less, so that it is easy to collect and manage the refueling amount of customers who are refueling.
4) When presetting with the amount of fueling, the amount of fueling is rounded up, so that no change is handled.
5) By closing the main valve first and closing the sub-valve after a predetermined time, it is possible to finish refueling more smoothly than when refueling is ended by closing only the main valve.

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, an oil supply pipe 3 is disposed in a housing 2 of the oil supply device 1, and a pump 4, a main valve 5, and a flow meter 7 are interposed in the oil supply pipe 3. An oil supply nozzle 10 having a negative pressure sensor 9 is provided at the tip of the connected oil supply hose 8. The housing 2 is provided with a display 11, a nozzle hook 13 having a nozzle switch 12, a keyboard 14 for inputting refueling data, and a control device 15.

  The control device 15 outputs a drive signal to the motor 16 that drives the pump 4, outputs an open / close signal to the main valve 5, and outputs display data to the display 11. In addition, the controller 15 receives refueling data from the keyboard 14, an on / off signal from the nozzle switch 12, and a flow rate pulse signal from the flow rate pulse transmitter 17 of the flow meter 7. A negative pressure signal is input from the negative pressure sensor 9.

  As shown in FIG. 2, the control device 15 includes a motor driving unit 18 that controls the driving of the motor 16, a valve opening driving unit 19 that controls the opening of the main valve 5, and a valve closing that controls the closing of the main valve 5. Drive means 20, display drive means 21 for controlling display on display 11, counting means 22 for counting the amount of oil supplied from the flow rate pulse of flow rate pulse transmitter 17, unit price storage means 23 for storing the unit price of fuel oil, oil charge The charge calculation means 24 for calculating the signal, the determination means 25 for receiving the negative pressure signal from the negative pressure sensor 9 to determine substantially full, the integer amount button 26, the integer amount button 27, and the integer preset button 28 on the keyboard 14 In response to this, there is provided a fraction processing means 29 or the like for performing a refueling amount or a refueling amount with no fraction.

  As shown in FIG. 3, the oiling nozzle 10 of the present invention has substantially the same structure as that of the conventional one, but a negative pressure sensor 9 is provided in the diaphragm chamber 31, and the valve is composed of a small valve 32 and a large valve 33. The small valve 32 is opened and closed by raising and lowering the valve rod 34, and the large valve 33 is opened and closed by the hydraulic pressure in the valve chamber 35.

  When the fueling nozzle 10 is inserted into the fueling port of the automobile and the lever 36 is pulled, the valve rod 34 is pulled up and the small valve 32 is opened, the liquid in the valve chamber 35 flows out, and the large valve 33 is opened by the hydraulic pressure and the fueling is performed. Starts.

  When the fuel tank is almost full and the opening 37 is closed by the rising bubble, the negative pressure generated in the negative pressure generating portion 38 is transmitted to the diaphragm chamber 31 and a negative pressure signal is output from the negative pressure sensor 9. The At the same time, the diaphragm 39 is bent, the holding of the fulcrum 41 of the lever 36 by the automatic closing mechanism 40 is released, and the valve rod 34 is lowered. The small valve 32 is closed by the lowering of the valve rod 34, and the large valve 33 is gradually closed by the oil flowing into the valve chamber 35 from the small hole 42.

  The fuel oil is relatively easy to foam, and after the opening 37 of the fuel nozzle 10 is closed by the foam and the fuel supply is stopped, the fuel oil can be supplied by about 1 liter.

Next, the aspect of the oil supply of the oil supply apparatus 1 of this invention is demonstrated based on the flowchart of FIG.
1) Oil supply rounded up to the nearest 10 yen When the oil supply nozzle 10 is removed from the nozzle hook 13, an ON signal is input from the nozzle switch 12 to the control device 15 (ST1), and the control device 15 receiving this signal counts The previous count data counted by the means 22 is reset, the display 11 is returned by the display drive means 21, the main valve 5 is opened by the valve opening drive means 19, and the motor 16 is driven by the motor drive means 18. Then, the pump 4 is rotated (ST2).

  When the refueling nozzle 10 is inserted into the refueling port of the automobile and the lever 36 is pulled, the valve rod 34 is pulled up to open the small valve 32, the liquid in the valve chamber 35 flows out, and the large valve 33 is opened by the liquid pressure. Refueling starts.

  A flow rate pulse is input from the flow rate pulse transmitter 17 of the flow meter 7 to the control device 15 (ST3), and the control device 15 counts the amount of oil supplied by the counting means 22 and calculates the amount of oil supplied by the charge calculating means 24. Is displayed on the display 11 by the display drive means 21 (ST4).

  When the fuel tank is full, the opening 37 is closed by the rising bubble and the negative pressure is transmitted to the diaphragm chamber 31, a negative pressure signal is input from the negative pressure sensor 9 to the control device 15 (ST5). The judging means 25 receives the negative pressure signal, the charge calculating means 24 calculates the oil supply charge (ST6), and the fraction processing means 29 calculates the oil supply amount rounded up to the nearest less than 10 yen, and when the oil supply amount is reached (ST7). The main valve 5 is closed by the valve closing drive means 20 (ST8).

  On the other hand, in the fuel supply nozzle 10, the diaphragm 39 is bent due to the negative pressure, the holding of the fulcrum 41 of the lever 36 by the automatic closing mechanism 40 is released, the valve rod 34 is lowered, the small valve 32 is closed, and the valve chamber 35 is opened from the small hole 42. Oil flows in and the large valve 33 is gradually closed.

  In this way, the control device 15 closes the main valve 5 when the negative pressure signal is transmitted from the negative pressure sensor 9 and the amount of rounded up less than 10 yen is supplied. Since the amount of refueling obtained by rounding up the fraction is short, the refueling is performed while the large valve 33 is gradually closed.

  When the oil supply nozzle 10 is put on the nozzle hook 13, an off signal is input from the nozzle switch 12 to the control device 15, and the driving of the motor 16 by the motor driving means 18 is stopped.

  In this way, since the fuel supply is rounded up to the nearest 10 yen, there is no need to prepare change in the change station. Further, the customer does not receive complicated coins.

2) Refueling rounded up to the nearest 100 yen When refueling rounded up to the nearest 10 yen and before the oiling nozzle 10 is put on the nozzle hook 13, the integer amount button 26 on the keyboard 14 is pressed (ST10). When the amount signal is input to the control device 15, the fraction processing means 29 that has received the integer amount signal calculates the amount of oil supplied by rounding up the fraction less than 100 yen, and the valve opening drive means 19 opens the main valve 5 (ST11). Then, when the lever 36 of the fueling nozzle 10 is pulled, the fueling is resumed, and when the fueling amount rounded up to the nearest 100 yen is fed (ST12), the valve closing drive means 20 closes the main valve 6 (ST13). .

  When the fueling nozzle 10 is put on the nozzle hook 13, an off signal is input from the nozzle switch 12 to the control device 15 (ST14), and the driving of the motor 16 is stopped by the motor driving means 18 (ST15).

  Thus, since the fuel supply is rounded up to the nearest 100 yen, it is possible to deal with customers who think that less than 100 yen is a small change.

3) Oil supply with rounded up fractions less than 1 liter If you want to lubricate with fractions rounded down to less than 1 liter, before refueling with the rounded up fractions of less than 10 yen, 14 quantity integer button 27 is pressed.

  Then, the quantity integer signal is input to the control device 15, and the flow is similar to the flow ST10-15 in the case of refueling with the fraction less than 100 yen rounded up (only there is a difference between the integer amount signal and the quantity integer signal), Refueling is performed.

  In this way, since the fuel supply is rounded up to the nearest 1 liter, the total amount management of the fuel supply amount is facilitated in the case of a buyer.

4) Refueling by rounding up the fraction less than 10 yen by the amount preset When the integer preset button 28 for specifying the round-up amount of the keyboard 14 is pressed before refueling and the preset amount signal is input to the controller 15, the fraction processing means 29 is 10 yen. Calculate and preset the lubrication amount rounded up to the nearest whole number.

  Then, as described above, when the oil supply nozzle 10 is removed from the nozzle hook 13, an ON signal is input from the nozzle switch 12 to the control device 15 (ST1), the display 11 is returned to zero, the main valve 5 is opened, The motor 4 is driven to rotate the pump 4 (ST2).

When refueling is started by inserting the refueling nozzle 10 into the refueling port of the automobile, a flow rate pulse signal is input to the control device 15 (ST3), the refueling amount is counted, the refueling amount is calculated, and displayed on the display 11. (ST4).
When the preset amount is reached (ST20), the main valve 6 is closed (ST8).

  When the fueling nozzle 10 is put on the nozzle hook 13, an off signal is input from the nozzle switch 12 to the control device 15 (ST14), and the driving of the motor 16 is stopped (ST10).

  When the fueling amount is preset in this way, the fueling amount obtained by rounding up the fraction of the amount of fueling is preset and fueled.

  In addition, since the main valve 5 is closed by receiving the negative pressure signal from the negative pressure sensor 9 of the fueling nozzle 10 and the fueling is stopped, when the small valve 32 and the large valve 33 of the fueling nozzle 10 are in trouble and cannot be closed, It is safe because refueling automatically stops.

Next, a second embodiment of the present invention will be described with reference to FIG. 2, FIG. 3, FIG. 5, and FIG.
The block diagram of the control device in the second embodiment according to the present invention is shown in FIG. 5, the sub valve 6 is connected in parallel to the main valve 5, and the control device 15 includes the main valve 5 and the sub valve 6. The other open / close signal is output, and the other configuration is the same as in FIG. The fueling nozzle 10 itself has the same structure as that shown in FIG. 3 except for the auxiliary valve.

  The block diagram of the control device 15 uses FIG. 2 of the first embodiment. In the second embodiment, the original valve of FIG. 2 and the block of reference numeral 5 are indicated as the original valve and auxiliary valve and reference numerals 5 and 6.

Next, the aspect of oil supply of the oil supply apparatus 1 of this invention is demonstrated based on the flowchart of FIG.
1) Oil supply rounded up to the nearest 10 yen When the oil supply nozzle 10 is removed from the nozzle hook 13, an ON signal is input from the nozzle switch 12 to the control device 15 (ST1), and the control device 15 receiving this signal counts The previous count data counted by the means 22 is reset, the display 11 is returned by the display drive means 21, the main valve 5 and the subvalve 6 are opened by the valve opening drive means 19, and the motor drive means 18 is opened. The motor 4 is driven to rotate the pump 4 (ST2).

  When the refueling nozzle 10 is inserted into the refueling port of the automobile and the lever 36 is pulled, the valve rod 34 is pulled up to open the small valve 32, the liquid in the valve chamber 35 flows out, and the large valve 33 is opened by the liquid pressure. Refueling starts.

  A flow rate pulse is input from the flow rate pulse transmitter 17 of the flow meter 7 to the control device 15 (ST3), and the control device 15 counts the amount of oil supplied by the counting means 22 and calculates the amount of oil supplied by the charge calculating means 24. Is displayed on the display 11 by the display drive means 21 (ST4).

  When the fuel tank is almost full, the opening 37 is closed by the rising bubble and the negative pressure is transmitted to the diaphragm chamber 31, a negative pressure signal is input from the negative pressure sensor 9 to the control device 15 (ST5). Receiving the negative pressure signal, the judging means 25 closes the main valve 5 by the valve closing drive means 20, and the fraction processing means 29 calculates the oil amount rounded up to the nearest 10 yen (ST6). ST7), the auxiliary valve 6 is closed by the valve closing drive means 20 (ST8).

  On the other hand, in the fuel supply nozzle 10, the diaphragm 39 is bent due to the negative pressure, the holding of the fulcrum 41 of the lever 36 by the automatic closing mechanism 40 is released, the valve rod 34 is lowered, the small valve 32 is closed, and the valve chamber 35 is opened from the small hole 42. Oil flows in and the large valve 33 is gradually closed.

  In this way, the control device 15 directly closes the main valve 5 when a negative pressure signal is transmitted from the negative pressure sensor 9, and closes the sub-valve 6 when the amount rounded up to the nearest 10 yen is supplied. Since the amount of refueling obtained by rounding up the fraction is short, the refueling is performed while the large valve 33 is gradually closed.

  When the oil supply nozzle 10 is put on the nozzle hook 13, an off signal is input from the nozzle switch 12 to the control device 15 (ST9), and the driving of the motor 16 by the motor driving means 18 is stopped. (ST10).

  In this way, since the fuel supply is rounded up to the nearest 10 yen, there is no need to prepare change in the change station. Further, the customer does not receive complicated coins.

2) Refueling rounded up to the nearest 100 yen When refueling rounded up to the nearest 10 yen and before the fueling nozzle 10 is put on the nozzle hook 13, the integer amount button 26 on the keyboard 14 is pressed to control the integer amount signal. Input to the device 15 (ST11). The fraction processing means 29 that has received the integer amount signal calculates the amount of oil supplied by rounding up the fraction less than 100 yen, and the valve opening drive means 19 opens the sub-valve 6 (ST12). When the lever 36 of the fueling nozzle 10 is pulled, the fueling is resumed, and when the amount of fuel rounded up to the nearest 100 yen is fed (ST13), the valve closing drive means 20 closes the sub valve 6 (ST8). .

  Then, when the fuel supply nozzle 10 is put on the nozzle hook 13, an off signal is input from the nozzle switch 12 to the control device 15 (ST9), and the drive of the motor 16 is stopped by the motor drive means 18. (ST10).

  Thus, since the fuel supply is rounded up to the nearest 100 yen, it is possible to deal with customers who think that less than 100 yen is a small change.

3) Refueling rounded up to the nearest less than 1 liter Pressing the amount integer button 27 on the keyboard 14 before the refueling with the fraction less than 10 yen rounded and the fueling nozzle 10 to be placed on the nozzle hook 13 will control the amount integer signal Input to the device 15 (ST14). In response to the quantity integer signal, the fraction processing means 29 calculates the amount of oil supplied by rounding up the fraction less than 1 liter, and the valve opening drive means 19 opens the auxiliary valve 6 (ST15). Then, when the lever 36 of the fueling nozzle 10 is pulled, the fueling is resumed, and when the fueling amount rounded up to the nearest 1 liter is fed (ST16), the valve closing drive means 20 closes the sub valve 6 (ST8). .

  When the oil supply nozzle 10 is put on the nozzle hook 13, an off signal is input from the nozzle switch 12 to the control device 15 (ST9), and the driving of the motor 16 by the motor driving means 18 is stopped. (ST10).

  In this way, since the fuel supply is rounded up to the nearest 1 liter, the total amount management of the fuel supply amount is facilitated in the case of a buyer.

4) Refueling by rounding up the fraction less than 10 yen by the amount preset When the integer preset button 28 for specifying the round-up amount of the keyboard 14 is pressed before refueling and the preset amount signal is input to the controller 15, the fraction processing means 29 is 10 yen. Calculate and preset the lubrication amount rounded up to the nearest whole number.

  As described above, when the oil supply nozzle 10 is removed from the nozzle hook 13, an ON signal is input from the nozzle switch 12 to the control device 15 (ST1), the display 11 is returned to zero, the main valve 5 and the subvalve 6 is opened and the motor 16 is driven to rotate the pump 4 (ST2).

  When refueling is started by inserting the refueling nozzle 10 into the refueling port of the automobile, a flow rate pulse signal is input to the control device 15 (ST3), the refueling amount is counted, the refueling amount is calculated, and displayed on the display 11. (ST4).

  When close to the preset amount (ST17), the valve closing drive means 20 closes the main valve 5 (ST18), and when it reaches the preset amount (ST19), closes the auxiliary valve 6 (ST8).

  When the oil supply nozzle 10 is put on the nozzle hook 13, an off signal is input from the nozzle switch 12 to the control device 15 (ST9), and the drive of the motor 16 is stopped. (ST10).

  According to the present embodiment, since the negative valve signal is received from the negative pressure sensor 9 of the fuel supply nozzle 10 and the main valve 5 is closed, and then the auxiliary valve 6 is closed after the small amount of fuel supply, the fuel supply is stopped. Thus, as compared with a case where only a large-capacity main valve is used and this valve is closed immediately upon receiving a negative pressure signal, the stop of refueling can be made smoother.

  Since refueling is automatically performed with the fractional amount rounded up, it is not necessary to prepare a large amount of coins at the gas station, and a large amount of coins is not collected by the customer. And it becomes an oil supply apparatus which can pay the oil supply fee quickly. In addition, when refueling is performed by rounding up the fractional quantity, the refueling device can be easily managed by summing up the refueling amount of the customers who are refueling.

Sectional drawing of the oil supply apparatus of the 1st Embodiment of this invention. The block diagram of the control apparatus of the said oil supply apparatus. Sectional drawing of the oil supply nozzle of the said oil supply apparatus. The flowchart which shows the aspect of the oil supply of the said oil supply apparatus. Sectional drawing of the oil supply apparatus of the 2nd Embodiment of this invention. The flowchart which shows the aspect of the oil supply of the said oil supply apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Oil supply device 2 ... Housing 3 ... Oil supply pipe 4 ... Pump 5 ... Main valve 6 ... Sub valve 7 ... Flow meter 8 ... Oil supply hose 9 ... Negative pressure sensor 10 ... Refueling nozzle 11 / Display 12 ... Nozzle switch 13 ... Nozzle hook 14 ... Keyboard 15 ... Control device 16 ... Motor 17 ... Flow rate pulse transmitter 18 ... Motor drive means 19 ... Valve open drive means 20 ... Valve close drive means 21 ... Display drive means 22 ... Counter means 23 ... Unit price storage means 24 ... Price calculation means 25 ... judgment means 26 ... integer amount button 27 ... integer amount button 28 ... integer preset button 29 ... fraction processing means 31 ... diaphragm chamber 32 ... small valve 33 ... Large valve 34 ... Valve 35 ... Valve chamber 36 ... Leva -37 ... Opening 38 ... Negative pressure generating part 39 ... Diaphragm 40 ... Automatic closing mechanism 41 ... Supporting point 42 ... Small hole

Claims (5)

  In the oil supply device in which a pump, a main valve, and a flow meter are provided in the oil supply pipe, an oil supply nozzle is provided at the tip of the oil supply hose connected to the oil supply pipe, and a control device for controlling the oil supply is provided. When a pressure generator is provided, a negative pressure sensor is provided that detects the negative pressure of the negative pressure generator when a bubble in the oil filler port is detected and outputs a negative pressure signal, and when a bubble in the oil filler port is detected A valve that is gradually closed is provided, and the control device receives a negative pressure signal from a negative pressure sensor, calculates a fractional amount of the fueling fee, calculates a fractional amount corresponding to the fractional amount, and refuels the computed fractional amount. An oil supply device comprising a control means for closing the main valve when the fuel is discharged.   The control device receives the integer amount signal from the integer amount button on the keyboard, opens the main valve, calculates the higher fraction of the refueling fee, calculates the fractional amount corresponding to the fractional amount, and refuels the calculated fractional amount. The oil supply device according to claim 1, further comprising a control unit that closes the main valve when the fuel is discharged.   The control device comprises a control means for receiving an integer amount signal from an integer amount button of a keyboard, opening a main valve, calculating an end quantity of the oil supply amount, and closing the main valve when the calculated end quantity is supplied. The oil supply device according to claim 1, wherein In the oil supply device provided with a control device that controls the oil supply by providing a pump, a main valve, and a flow meter in the oil supply tube, providing an oil supply nozzle at the tip of the oil supply hose connected to the oil supply tube,
The control device comprises a control means for receiving a preset amount signal from an integer preset button of a keyboard and closing a main valve by the preset amount.   A sub-valve connected in parallel to the main valve is provided, and the control device receives a negative pressure signal from the negative pressure sensor, or closes the main valve slightly before a preset amount, and calculates the calculated end quantity or preset amount. The oil supply device according to any one of claims 1 to 4, further comprising control means for closing the auxiliary valve when the fuel is supplied.

Images