JPH0113116Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to an improvement of a refueling device, which allows the tank to be refueled to be accurately filled with oil (hereinafter referred to as "full tank"). This is what I did.

(Prior art) When refueling with a conventional refueling device,
An auto nozzle is used as the refueling nozzle, and when the amount of refueling reaches the full tank, the main valve of this auto nozzle is closed by an automatic valve closing mechanism that uses negative pressure, closing the refueling path and completing refueling. are doing.

(Problem that the invention aims to solve) However, the automatic valve closing mechanism often malfunctions due to bubbles generated in the refueling tank during refueling. The problem is that it is not possible to refuel.

The present invention was devised in view of the above-mentioned problems of the prior art, and its purpose is to provide a refueling device that can accurately refuel a tank to be refueled until it is full. It is in.

(Means for Solving the Problems) As a means for solving the above problems, in a refueling device that refuels a tank to be refueled by a refueling nozzle provided at the tip of a refueling hose via a pump and a flow meter, a counting means for calculating the amount of oil to be supplied by counting flow rate pulses output from an attached flow rate pulse transmitter; a receiver for receiving a remaining amount signal from an amount detecting means; a refueling tank capacity setting means for receiving a setting input of the capacity of the refueling tank; The remaining amount of the refueling tank is subtracted from the capacity of the refueling tank based on the remaining amount signal and the input signal input to the refueling tank capacity setting means, and from this subtraction result, the refueling tank is filled to the full. a setting means for setting a preset value of the amount of oil needed to supply the oil, and a setting means that compares the preset value set by the setting means with the amount of oil calculated by the counting means, and determines whether the amount of oil corresponding to the preset value is the amount of oil supplied. The pump includes a comparison means that outputs a full signal when the full amount signal is inputted from the comparison means, and a drive control means that deenergizes the motor that drives the pump when the full amount signal is input from the comparison means.

(Function) With the above configuration, before refueling starts, the receiver is connected to the remaining amount detection means of the refueled tank to receive the remaining amount signal, and the receiver is connected to the refueled tank capacity setting means such as a card reader. When the capacity data is input, the setting means subtracts the remaining amount of the tank to be refueled from the capacity of the tank to be refueled, and the amount of refueling necessary to fill the tank to be refueled is set as a preset value. Then, when the refueling operation is started, the comparison means compares the preset value with the actual refueling amount calculated by the counting means, and when it is determined that the refueling amount corresponding to the preset value has been refilled, a full level signal is output. Then, the motor that drives the pump is deenergized by the drive control means, and full refueling is completed.

(Example) An example of the oil supply device according to the present invention will be described below based on the drawings.

In FIG. 1, reference numeral 1 denotes a refueling device according to the present invention, and here, as an example, a case where this refueling device 1 is used to refuel a refueling tank 3 of an automobile 2 as shown in FIG. 2 is taken as an example. Let me explain. First, this tank 3 to be refueled is equipped with a liquid level measuring device 4 as a remaining amount detection means for detecting the remaining amount of oil and outputting a remaining amount signal. This liquid level measuring device 4 detects the amount of oil in the tank 3 to be refueled by sensing the liquid level, and the detection specifications may be hydraulic, optical, or electrical. It is of good quality and is connected to a liquid level gauge on the driver's seat (not shown) of the automobile 2, and has a signal output terminal section 5.
It goes without saying that the refueling device 1 of the present invention is not limited to refueling the refueling tank 3, but can also refuel refueling tanks of other vehicles or those that are not equipped with the liquid level measuring device 4. It is.

Returning to FIG. 1, 6 is a pipe connected to an oil storage tank (not shown), 7 is a pump connected to this pipe 6 to suck up the oil in the oil storage tank, 8 is a motor for driving this pump 7, and 9 is a pipe 6 is a refueling hose connected to the refueling hose 9, and 10 is a refueling nozzle provided at the tip of the refueling hose 9. The piping 6 is provided with a flow meter 11 located on the discharge side of the pump 7, and the flow meter 11 includes a flow pulse generator 12 that generates a flow pulse corresponding to the flow rate measured by the flow meter 11. is attached. 13 is a counting circuit as a counting means; 14 is a refueling amount display section; the flow pulses from the flow rate pulse transmitter 12 are counted by the counting circuit 13 to calculate the refueling amount;
It is designed to be displayed on the refueling amount display section 14. 15 is a nozzle hook, and this nozzle hook 1
5 is provided with a nozzle switch 16,
The motor 8 for driving the pump 7 is turned on and off by connecting and disconnecting the oil supply nozzle 10.

The refueling device 1 is designed to perform full refueling based on the remaining amount signal from the liquid level measuring device 4. Next, a control circuit for controlling the refueling device 1 will be explained.

In FIG. 3, 17 is a motor drive circuit for the motor 8, and 18 is its power supply circuit. 19 is a receiver as a receiving means, and this receiver 19
is connected to the signal output terminal section 5 of the liquid level measuring device 4 when the tank is filled with fuel, and here, as shown in FIG. However, as shown in FIG. 4, it may be provided integrally with the oil supply nozzle 10'. Reference numeral 26 denotes a card reader as a refueling tank capacity setting means for setting and inputting the capacity of the refueling tank 3 of the automobile. Although the capacity data is read from the card, the refueling tank capacity setting means may be a setting switch that allows the operator to directly input the capacity data of the refueling tank 3 when refueling.

The receiver 19 is connected to a setting circuit 22 as a setting means via a data conversion circuit 21 such as an encoder.
is connected, and this setting circuit 22 determines the remaining amount of the refueling tank 3 from the capacity of the refueling tank 3 based on the remaining amount signal received by the receiver 19 and the input signal input to the card reader 26. The amount of refueling necessary to fill the tank 3 to be refueled is set as a preset value from the subtraction result.

Reference numeral 23 denotes a comparison circuit as a comparison means, and a preset signal from the setting circuit 22 and a count signal from the counting circuit 13 are input to the comparison circuit 23. , that is, the set amount of refueling required to fill up the tank 3 and the counting circuit 1.
3 count value, i.e. flow rate pulse generator 12
Compare the calculated oil supply amount based on the flow rate pulse from
When the count value of the counting circuit 13 becomes equal to the preset value, a full tank signal is output. 24
is a drive control circuit as a drive control means, and a full tank signal from the comparator circuit 23 is input to this drive control circuit 24. This drive control circuit 24 sends a motor drive signal when the nozzle switch 16 is closed, and sends a motor stop signal to the motor drive circuit 17 when the nozzle switch 16 is opened.
In addition, when receiving a full signal from the comparator circuit 23, the nozzle switch 1
6 is closed, a motor stop signal is output to the motor drive circuit 17, and the motor drive circuit 17 is controlled so as to de-energize the motor 8. Reference numeral 25 indicates an alarm such as a lamp or a buzzer, and the full tank signal from the comparator circuit 23 is also input to this alarm 25, which indicates that the tank 3 to be refueled is full when refueling is completed. It has become possible to know that there is something visually, audibly, etc.

Next, the effect will be explained.

First, the receiver 19 is connected to the signal output terminal section 5 of the liquid level measuring device 4. Then, the remaining amount signal from the liquid level measuring device 4 is received by the receiver 19, and the received remaining amount signal is converted by the data conversion circuit 21 into a signal that can be processed by the setting circuit 22, and the setting circuit 22 converts the received remaining amount signal into a signal that can be processed by the setting circuit 22. It is input to the circuit 22. Setting circuit 2
2 sets a preset value by subtracting the remaining amount of the tank 3 to be refueled from the capacity of the tank 3 to be refueled based on the remaining amount signal received by the receiver 19 and the input signal input to the card reader 26. The preset value is supplied to the comparator circuit 23.

When the refueling nozzle 10 is removed from the nozzle hook 15,
The nozzle switch 16 is closed, and the drive control circuit 2
4 outputs a motor drive signal to the motor drive circuit 17, the motor 8 operates, and the pump 7 operates. Therefore, when the oil supply nozzle 10 is operated to start oil supply, the oil discharged from the pump 7 and flowing through the piping 6 is measured by the flow meter 11, and a flow pulse corresponding to the measured flow value is sent to the flow pulse generator 12.
The signal is output from the counter to the counting circuit 13. Then,
The flow rate pulses are counted by the counting circuit 13,
The count value is input to the comparison circuit 23.

During refueling, the comparator circuit 23 always compares the count value from the counting circuit 13 and the preset value from the setting circuit 22, and when the count value becomes equal to the preset value, a full tank signal is output. Upon receiving this full tank signal, the drive control circuit 24 immediately
A motor stop signal is output to the motor drive circuit 17. As a result, the motor 8 is stopped and the pump 7 stops sucking up oil. At the same time,
Since the full tank signal is also input to the alarm 25, a lamp, a buzzer, etc. are used to notify the completion of full tank refueling. The worker should use this lamp, buzzer, etc. alarm 2.
5 or by noticing that the meter on the refueling amount display section 14 has stopped, the completion of full refueling is known. In particular, if you use a buzzer, you can know when the tank is fully refueled even if you are far from the refueling site. The operator who knows this returns the refueling nozzle 10 to the nozzle hook 15 and finishes the work.

(Effects of the invention) As is clear from the above, according to the invention, the amount of refueling required to fill up the tank to be refueled is preset before refueling, and the amount of refueling required to fill up the refueling tank is preset, and based on the preset value. Since refueling is performed at full capacity, the tank to be refueled can be reliably refueled to full capacity regardless of the bubbles generated during refueling.

In addition, when the amount of refueling reaches the full tank, the pump drive motor is deenergized to complete the refueling, so even if the refueling is completed unlike when using a conventional auto nozzle, This has the effect of saving energy compared to a case where the motor remains in operation.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of a refueling device according to the present invention. FIG. 2 is a schematic configuration diagram of a tank to be refueled according to the present invention. FIG. 3 is a block circuit diagram of a device for controlling refueling of a refueling device according to the present invention. FIG. 4 is a side view of the refueling nozzle integrally provided with a receiver. 1... Refueling device, 3... Refueling tank, 4...
Liquid level measuring device (remaining amount detection means), 7...pump,
8...Motor, 9...Refueling hose, 10...Refueling nozzle, 11...Flow meter, 12...Flow rate pulse transmitter, 13...Counting circuit (counting means), 19...
Receiver, 22... Setting circuit (setting means), 23...
... Comparison circuit (comparison means), 24 ... Drive control circuit (drive control means), 26 ... Card reader (refueling tank capacity setting means).

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a refueling device that refuels a tank to be refueled by a refueling nozzle installed at the tip of a refueling hose via a pump or a flow meter, a flow rate pulse generator attached to the flow meter; a counting means for calculating the amount of oil to be supplied by counting the flow rate pulses output from the oil tank; and a remaining amount detecting means attached to the tank to be oiled so as to detect the remaining amount of oil in the tank to be oiled. a receiver for receiving a signal; a tank capacity setting means for setting and inputting the capacity of the tank to be refueled; Based on the input signal input to the refueling tank capacity setting means, the remaining amount of the refueling tank is subtracted from the refueling tank capacity, and from this subtraction result, the amount of refueling necessary to fill the refueling tank is calculated. a setting means for setting the quantity as a preset value; and a setting means that compares the preset value set by the setting means with the amount of oil to be supplied calculated by the counting means, and determines that the oil is full when the amount of oil that corresponds to the preset value is filled. A refueling device comprising: a comparison means that outputs a signal; and a drive control means that de-energizes a motor that drives the pump when a full signal is input from the comparison means. (2) The utility model registration claim described in paragraph (1) is characterized in that the refueling tank capacity setting means is a card reader that reads the capacity data of the refueling tank recorded in advance on the customer's refueling card. refueling device.