JP3180654B2 - Oiling device with oil type identification function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vapor intake / exhaust mechanism for a fuel supply system having a function of determining the type of fuel oil based on the concentration of vapor retained in a vehicle fuel tank.

[0002]

2. Description of the Related Art Diesel oil and gasoline are used as fuel oil for automobiles. Incorrect refueling of the oil type causes inconvenience to the engine. For this reason, there has been proposed a fueling device in which vapor is suctioned from a tip end of a fueling nozzle into a gas sensor chamber of the fueling device main body by a suction pump provided in the fueling device main body to determine an oil type of an automobile fuel tank. However, in the case where such a gas sensor is provided on the fueling device main body side, a pipe line until the vapor is drawn into the gas sensor becomes long, so that not only takes time until determination,
There is a problem that a pump having a strong suction force is required to suck the vapor.

In order to solve such a problem, Japanese Patent Application Laid-Open
While the air supply means is provided in the fueling apparatus main body as seen in 6-115598 publication, a negative pressure generating part communicating with the air supplying means on the fueling nozzle side, a gas sensor chamber connected to the negative pressure generating part, Switching means for switching the supply of air to the negative pressure generating section and the gas sensor chamber in conjunction with the nozzle lever is provided,
The switching means is opened and closed by applying the liquid pressure inside the refueling nozzle, before the nozzle lever is pulled, air is supplied to the gas sensor chamber to automatically scavenge the vapor, and then to the ejector when the nozzle lever is pulled. An apparatus has been proposed in which air is supplied to suck a vapor into a sensor chamber to determine the type of oil, and air is supplied to a gas sensor chamber to perform scavenging while receiving liquid supply pressure. According to this device, not only can the pipe length between the vapor suction port and the gas sensor be shortened as much as possible, but also the sensor chamber is automatically scavenged before the start of refueling so that a reliable oil type can be obtained. The determination can be made, and the sensor chamber can be scavenged during liquid feeding to prevent deterioration of the sensor.

[0004]

However, since the air pump is provided independently for each refueling system and is configured to operate when the refueling system is in the refueling posture, the air pump is provided for each refueling system. In addition to the necessity of an air pump, not only the size of the fueling device main body becomes large, but also the maintenance of the air pump requires troubles. Original
As shown in JP-A-6-156600,
Can be constantly supplied from a common air pump
Although it is conceivable, the air supply
Therefore, there is a problem that energy is wasted. The present invention
The present invention has been made in view of such a problem, and an object thereof is to provide a common oil supply mechanism for oil type determination means of a plurality of oil supply systems while preventing waste of energy. An object of the present invention is to provide a refueling device having a kind determination function.

[0005]

In order to solve such a problem, according to the present invention, air is supplied to a plurality of refueling systems.
Common air supply means that can be supplied at times ,
While storing and canceling the refueling request,
Activate the air supply means and use the signal from the gas sensor
Oil type is determined, and when all refueling requests are released
Air pump control oil type determination for stopping the air supply means
Means, fuel Yuso fluid mechanism, said gas sensor receiving a supply of said air supply means and negative pressure connected by pipes, positive pressure generating ejector, Air vapor and scavenging from vehicle fuel tank connected to the ejector, and refueling nozzle with a lever switch for outputting a signal of the oil supply request in conjunction with the fueling lever, the air by the return over the oil supply nozzle
Solves the refueling request stored in the pump control oil type determination means.
Multiple nozzles with nozzle switches
An oil system was provided.

[0006]

The air is supplied from a common air supply means to a plurality of refueling mechanisms by piping, and when a request is received from one refueling mechanism, the refueling request is stored and the air supply means is operated to operate all the refueling mechanisms. When air is supplied and refueling is completed
Deletes the refueling request stored in the memory and only when necessary
Activate the air supply means.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a first embodiment of the present invention. FIG. 1 shows an embodiment of the present invention. In the drawing, reference numeral 1 denotes a fueling device main body, and a plurality of lubrications are provided on each of front and back surfaces 3 and 4 of a box 2, and in this embodiment, a total of four lubrications are provided. It is configured as a double-sided lubricating device provided with nozzles. On the surfaces 3 and 4 of the box 2 on the lubricating area side, indicators 7 and 8 for independently displaying the lubricating amounts by the respective lubricating nozzles 5 and 6 are provided. Informing devices 9 and 10 for notifying an abnormality at the time of determining the type, and release switches 13 and 14 for releasing the oil type determining function are provided near easy-to-operate positions, in this embodiment, near the nozzle hooks 11 and 12. I have. Reference numerals 15 and 16 in the figure denote hoses for connecting the flow meter and the oil supply nozzles 5 and 6.

FIG. 2 shows an embodiment of the present invention in relation to one oil supply system and an air pump control oil type judging means. A nozzle switch 19 for detecting, a refueling pump 20 for supplying fuel oil from the reserving tank to the refueling nozzle 5, a pump motor 21 for driving the refueling pump 20, a flow meter 23 having a flow rate pulse transmitter 22; Pulse transmitter 22
And a weighing machine control means 24 for converting the signal from the oil supply to the oil supply amount and outputting it to the display 7, and informing the abnormality at the time of oil type judgment by the alarm 9.

Each refueling nozzle 5 is connected to a flow meter 23 via a hose 15, and includes a lever for detecting the movement of the refueling lever, similar to that disclosed in Japanese Patent Application Laid-Open No. 6-115598. A switch 25, a gas sensor 26 that outputs an electrical signal corresponding to the concentration of vapor, and an ejector 27 that receives the supply of air to suck the vapor into the gas sensor 26 or scavenge the gas sensor 26 are provided. ing. In this embodiment, the ejector 27 is connected to a common air pump 35, which will be described later, by a pipe 37. When the refueling lever is pulled up for refueling, the ejector 27 generates a negative pressure to remove the vapor. When the gas is fed into the gas sensor 26 and the fuel supply lever is returned, the air from the air pump 35 is supplied to the gas sensor 26 as it is to scavenge the vapor.

Reference numeral 30 denotes an air pump control oil type determining means,
As shown in FIG. 3, all the refueling systems 31, 32, 33,
34, which is connected to the gas sensor 26 of the refueling nozzle 5 and the metering device control means 24, the common air pump 35, and the temperature sensor 36 for monitoring the air pump. It is configured to perform oil type determination based on signals from the gas sensors 26 of the systems 31 to 34. Further, when the air pump 35 is overheated by a signal from the temperature sensor 36, a signal is output to each of the weighing machine control means 24.

Next, the operation of the above-configured apparatus will be described with reference to the flowcharts shown in FIGS. One refueling nozzle 5 for nozzle refueling 11
The nozzle switch 19 is turned on (see FIG. 4).
Step b), the meter control means 24 for controlling the nozzle 5 outputs a refueling request signal to the air pump control oil type determining means 30 and returns the indicator 7 for displaying the refueling amount by the nozzle 5 to zero.

The air pump control oil type determination means 30 stores the refueling request signal at the stage when the refueling request signal is input from the weighing machine control means 24 (step a in FIG. 5) (step b in FIG. 5).

Further, the air pump control oil type judging means 30
When it is confirmed that the refueling request signal is stored (step A in FIG. 6), the air pump 35 is driven (step B in the figure). As a result, air is supplied to the ejectors 27 of all the oil supply systems 31 to 34 through the pipe 37, and the gas sensor 26 is scavenged before the oil type is determined.

In this state, when the fueling nozzle 5 is inserted into the vehicle fuel tank and the fueling lever is pulled, the lever switch 26 is turned on.
Is turned on (FIG. 4, step c).
4 outputs a judgment request signal (FIG. 4, step d).
In addition, the function of the ejector 27 is switched by this lever operation to generate a negative pressure, so that the vapor of the vehicle fuel tank flows into the gas sensor 26.

The air pump control oil type judging means 30 judges whether or not the detection signal is normally output from the gas sensor 26, and when the gas sensor 26 is functioning normally (FIG. 6, step C). Then, a signal indicating that the gas sensor 26 is operating normally is output to the weighing machine control means 24 (step d in FIG. 6).

The air pump control oil type judging means 30 receives the judgment request signal from the weighing machine control means 24 (step (a) in FIG. 7) and when the detection signal is normally input from the gas sensor 26 (FIG. 7). 7 Step b) Based on the signal from the gas sensor 26, determine the oil type of the automobile fuel tank (Step C in FIG. 7), and when it is confirmed that the oil type matches the oil type registered in the fueling nozzle 5 (Step d in FIG. 7), an OK signal indicating the oil type match is output to the weighing machine control means 24 (Step S in FIG. 7).
E) If no match is found for the oil type, a NO signal is output (step f in FIG. 7).

The meter control means 24 includes a gas sensor 26
Input of a signal indicating that is operating normally (FIG. 4)
Step E), and if an OK signal indicating oil type matching is input (FIG. 4 Step F), the pump motor 2
1 to start liquid feeding (Fig. 4 Step
G).

As a result, refueling of the vehicle fuel tank is started and a flow pulse is output from the flow pulse transmitter 22 (FIG. 4, step). The weighing machine control means 24 integrates the flow rate pulses and displays the amount of refueling on the display 7 (step S in FIG. 4).

When a predetermined amount of refueling is completed, the nozzle switch 1
When 9 is turned off (FIG. 4 step nu), the weighing machine control means 24 outputs an erasing signal for erasing the stored refueling request signal to the air pump control oil type determining means 30 and turns off the pump motor 21. (Step 4 in Fig. 4).

The air pump control oil type judging means 30 deletes the stored refueling request signal (FIG. 5 step C) according to the erasing signal input at the end of refueling (FIG. 5 step c).
Step d). When all the refueling request signals have been erased (step e in FIG. 6), the air pump 3
5 is stopped (step F in FIG. 6) to prevent unnecessary power consumption.

[When the Oil Type Judgment Function Does Not Operate] When a signal from the gas sensor 26 is not normally input, such as when a malfunction of the air pump 35 is detected by the temperature sensor 36 (step c in FIG. 6). Then, the air pump control oil type determination means 30 stops the air pump and outputs a signal indicating that the air pump is in an abnormal state to the weighing machine control means 24 (FIG. 6).

When receiving the signal indicating the abnormal state from the air pump control oil type judging means 30 (Step E in FIG. 4), the weighing machine control means 24 notifies the notification by the alarm 9 (Step E in FIG. 4). ).

When the operator checks the oil type of the vehicle fuel tank and confirms that the oil type matches the oil type of the nozzle 5, it is an oil type determination error, so the release switch 13 is operated to operate the oil type determination. Release the function (Fig. 4 Step
Wa).

The metering means control means 24 skips the judging operation from the air pump control oil type judging means 30 at the stage when the release signal is inputted, starts the pump motor 21 and starts the liquid feeding (step G in FIG. 4). . When refueling is started and a flow pulse is output from the flow pulse transmitter 22 (FIG. 4)
Step h), the weighing machine control means 24 integrates the flow rate pulses and displays the refueling amount on the display 7 (FIG. 4 step).

When a predetermined amount of refueling is completed, the nozzle switch 1
9 is turned off (FIG. 4 step nu), the weighing machine control means 24 outputs the erasure signal to the air pump control oil type determination means 30.
And the pump motor 21 is turned off (FIG. 4 step).

The air pump control oil type judging means 30 deletes the stored refueling request signal according to the erasing signal input at the end of refueling (step c in FIG. 5) (FIG. 5).
Step d).

On the other hand, if it is not possible to confirm that the oil type matches, as a result of noticing and confirming the abnormality, the nozzle 5 is returned to the nozzle hook 11 without operating the release switch 13.
The nozzle switch 19 is turned off (step 4 in FIG. 4).
F) The determination operation ends.

[When the Oil Type Judgment Does Not Match] Although the signal indicating that the gas sensor 26 is operating normally and the gas sensor 26 is operating normally is input from the air pump control oil type determination means 30 ( In step e in FIG. 4), if the oil type does not match, the weighing machine control means 24 informs the effect by the alarm 9 (step y in FIG. 4).

If the operator checks the oil type and confirms that they match, the determination is incorrect and the release switch 13 is operated to release the oil type determination function (FIG. 4).
Stepta).

The meter control means 24 starts the liquid supply by operating the pump motor 21 at the stage when the release signal is inputted (step 4 in FIG. 4), and the flow rate pulse output from the flow rate pulse transmitter 22 (step 4 in FIG. 4). H) is added up and the refueling amount is displayed on the display 7 (step 4 in FIG. 4).

When a predetermined amount of refueling is completed, the nozzle switch 1
When 9 is turned off (FIG. 4 step nu), the weighing machine control means 24 outputs an erasing signal for erasing the stored refueling request signal to the air pump control oil type determining means 30 and turns off the pump motor 21. (Step 4 in Fig. 4).

The air pump control oil type judging means 30 deletes the stored refueling request signal according to the erasing signal inputted at the end of refueling (step c in FIG. 5) (FIG. 5).
Step d). Then, when all the refueling request signals are deleted, the air pump 35 is stopped to prevent unnecessary power consumption.

On the other hand, if the operator checks the oil type and confirms that the oil types do not match, the nozzle 5 is returned to the nozzle hook without operating the release switch 13 and the weighing machine is operated. The control means 24 controls the nozzle switch 19
Is detected, and the determination operation ends.

[0034]

As described above, in the present invention,
A common air supply source and air pump control oil type
Storage and release of refueling requests from each refueling system by the judgment means
While operating the air supply means in response to a refueling request.
Oil type is determined by the signal from the
When the refueling request is released, stop the air supply means,
Further, the end of refueling work is detected by the nozzle switch
Refueling request stored in the air pump control oil type determination means
Can be supplied from the common pump when necessary for the oil type determination operation, and no energy is consumed.
The air supply mechanism can be simplified while preventing waste .

[Brief description of the drawings]

FIG. 1 is a diagram showing an outline of an apparatus showing one embodiment of the present invention.

FIG. 2 is a configuration diagram showing a configuration of one oil supply system and an air pump control oil type determination unit, and a connection relationship therebetween, according to an embodiment of the present invention;

FIG. 3 is a configuration diagram showing one embodiment of the present invention.

FIG. 4 is a flowchart mainly showing refueling control in the operation of the above device.

FIG. 5 is a flowchart showing a step of managing a refueling request in the operation of the above device.

FIG. 6 is a flowchart showing a step of driving control of an air pump in the operation of the above device.

[7] Among the definitive in ibid device operation is a flowchart illustrating the steps of an oil type determination operation.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Refueling apparatus main body 5, 6 Refueling nozzle 7, 8 Indicator 9, 10 Release switch 19 Nozzle switch 20 Refueling pump 21 Pump motor 23 Flow meter 25 Lever switch 26 Gas sensor 27 Ejector 31-34 Refueling system 35 Air pump 37 For air supply Piping

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B67D 5/32

Claims (5)

(57) [Claims] 1. A plurality of oil supply system at the same time capable of supplying a common air supply means air, the storage of oil demand from the oil supply line, while performing the releasing, feeding
The air supply means is actuated according to the oil request, and the oil type is determined based on the signal from the gas sensor.
An air pump control oil type determining means for stopping the air supply means when the air supply means is released , a fuel oil supply mechanism , an ejector for generating negative pressure and positive pressure connected to the air supply means by a pipe, and the ejector The gas sensor connected to the vehicle and receives supply of vapor and scavenging air from a vehicle fuel tank, and the signal of the refueling request in conjunction with a refueling lever.
Refueling nozzle with a lever switch for outputting, oil supply Roh
Means for determining the oil type of the air pump control oil by returning the chil
To output a signal to cancel the refueling request stored in
A plurality of oil supply systems, Tona Ru oil type discrimination function refueling apparatus having a nozzle switch. 2. The refueling device with an oil type discriminating function according to claim 1, wherein a release switch for releasing the oil type determining function is provided at a position that is easy to operate in each of the refueling systems. 3. The refueling device with an oil type discriminating function according to claim 2, wherein when the detection signal is not normally output from the gas sensor, a notification is made and the operation of the release switch enables refueling. 4. The refueling device with an oil type discriminating function according to claim 2, wherein when the result of the oil type determination based on the detection signal from the gas sensor does not match, the operation of the release switch enables refueling. 5. The oil supply device with an oil type discrimination function according to claim 1, wherein said air supply means is constituted by an air pump provided with a temperature sensor for detecting overheating.