JP2953759B2 - Refueling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to an oil supply device, and more particularly to an oil supply system that enables oil supply of a plurality of oil types with a single oil supply nozzle and that matches the oil type of the oil liquid in the fuel tank with the oil type supplied from the oil supply nozzle. The present invention relates to a lubricating device suitable for lubricating the oil liquid.

[Prior art]

2. Description of the Related Art Conventionally, for example, in a refueling apparatus in which a dedicated refueling nozzle / piping / refueling pump is arranged corresponding to each oil type (gasoline / light oil, etc.), the oil liquid pumped from each underground tank by the refueling pump is used. The oil is supplied to each oil supply nozzle via each pipe. When refueling the vehicle, the refueling operator determines the type of refueling oil for the vehicle, and then removes the relevant refueling nozzle that supplies the oil type that matches the refueling oil type from the nozzle housing. The vehicle is inserted into the vehicle fuel tank to perform refueling work.

[Problems to be solved by the invention]

By the way, the above-mentioned conventional lubricating apparatus has the following problems. Since a dedicated oil supply nozzle / pipe / oil supply pump, etc. is provided for each oil type, there is a problem that only oil of a preset oil type can be supplied from each oil supply nozzle. there were. In addition, when refueling the vehicle, the refueling worker needs to determine the compatible oil type of the vehicle fuel tank. If it is removed by mistake, this is detected and the refueling nozzle is automatically prohibited from refueling, while the refueling nozzle is returned to the original nozzle storage part, and then the oil compatible with the vehicle fuel tank oil type is used. Since it is necessary to remove another refueling nozzle for supplying the seed oil from the nozzle housing, there is a problem that the refueling preparation work takes time. The present invention solves the above-mentioned problem, and enables the supply of a plurality of oil types of oil liquids with a single oil supply nozzle, and makes the supply oil liquid from the oil supply nozzle compatible with the oil type of the oil liquid in the fuel tank. It is an object of the present invention to provide an oil supply device that enables oil supply of a compatible oil type by switching to an oil type.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a refueling nozzle,
One side is connected to the oil supply nozzle, and the other side is connected to respective oil liquid storage tanks of different oil types via liquid sending means, and the oil type of the oil liquid in the tank into which the oil supply nozzle is inserted is determined. It is characterized by comprising oil type identification means, and control means for driving only the liquid supply means of the pipe connected to the oil liquid storage tank of the oil type determined by the oil type identification means. Further, the liquid sending means of the present invention can be constituted by a normally closed solenoid valve which is provided in the middle of each pipe and is opened by the liquid sending drive by the control means. Further, the liquid feeding means of the present invention may be provided in the middle of each pipe, and may be constituted by a pump for supplying the oil liquid from the corresponding oil liquid storage tank to the oil supply nozzle by the liquid feeding drive by the control means.

[Action]

According to the present invention, when the refueling operator refuels the vehicle, for example, the oil type in the vehicle fuel tank into which the refueling nozzle is inserted by the oil type identification means is determined, and the control means determines the oil in the fuel tank based on the determination result The liquid sending means for supplying the oil liquid of the oil type matching the oil type of the liquid is driven for liquid feeding. Thereby, the oil can be supplied from one oil supply nozzle by appropriately switching to the oil of the corresponding oil type among the oils of the plurality of oil types.

【Example】

Hereinafter, a refueling device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic block diagram of a fueling device according to the present embodiment. The fueling device detects, for example, an oil type detected from a vehicle fuel tank among two oil types (gasoline / light oil) from one oiling nozzle. It is configured to be able to supply an oil liquid of an oil type matching the above. The refueling device according to the present embodiment includes a refueling nozzle 1, a gasoline pipe 2 communicating with the refueling nozzle 1 via a refueling hose (not shown), and a gasoline electromagnetic valve disposed in the gasoline pipe 2. A valve 3, a gasoline refueling pump 4 arranged on the base end side of the gasoline pipe 2 for pumping gasoline from a gasoline storage underground tank, and a light oil nozzle connected to the refueling nozzle 1 via the refueling hose. A pipe 5, a light oil solenoid valve 6 disposed in the middle of the light oil pipe 5, and a light oil refueling pump disposed on the base end side of the light oil pipe 5 to pump light oil from a light oil storage underground tank The pump 7 has one end extending to the tip of the discharge pipe 1A of the oil supply nozzle 1 and the other end extending to the inside of the oil supply device to intake oil vapor in the vehicle fuel tank / exhaust oil oil in the oil supply device. Suction and exhaust hose 8 for performing A suction / exhaust pump 9 which is connected to the other end of the hose 8 and which can invert / reverse the intake / exhaust hose 8 to suck / exhaust the oil vapor; An oil type detection sensor 10 that detects the oil vapor concentration of the oil liquid in the vehicle fuel tank based on the oil vapor concentration sucked in by the intake / exhaust hose 8, and an oil type detection sensor 10 that is provided at the tip of the discharge pipe 1 </ b> A of the oil supply nozzle 1. For example, an optical insertion sensor 11 that determines whether or not the fuel supply nozzle 1 has been inserted into the fuel supply port based on brightness, a nozzle switch 12 that outputs an ON signal / OFF signal in accordance with attachment / detachment of the fuel supply nozzle 1 to / from a nozzle housing (not shown). Control device for controlling each part of the refueling device
It is composed of 13 and. When the nozzle switch 12 is turned ON by the refueling operator removing the refueling nozzle 1 from the nozzle storage section, the control device 13 drives the suction / exhaust pump 9 to rotate in the normal direction and starts the suction operation by the suction / exhaust hose 8. Has become. Thereby, when the insertion sensor 11 detects the insertion of the refueling nozzle 1 into the fuel tank by the refueling worker, the suction of the oil vapor in the fuel tank by the intake / exhaust hose 8 is started. Based on the detection signal corresponding to the detected oil vapor concentration detection, the control device 13 determines the oil type of the oil liquid in the fuel tank into which the oil supply nozzle 1 is inserted, and determines the oil type of the oil type that matches the determined oil type. The solenoid valve provided in the pipe for supplying the oil is opened, and the corresponding oil supply pump is driven. Further, the control device 13 drives the intake / exhaust pump 9 in the reverse direction after a predetermined time from the driving of the oil supply pump to exhaust the oil vapor from the intake / exhaust hose 8. In the figure
14 is an automatic valve for controlling the flow of gasoline supplied from the gasoline refueling pump 4 via the gasoline pipe 2, and 15 is an automatic valve for controlling the flow of light oil supplied from the gasoline refueling pump 7 via the gas oil pipe 5. The valve 16 is a nozzle operation switch of a push button type, for example, having a nozzle lever function. Here, the oil type (gasoline / light oil) detection operation of the oil type detection sensor 10 will be described with reference to FIG.
Although the output level of the oil type detection sensor 10 before insertion into the fuel tank is at a certain low level based on the atmospheric atmosphere, when the refueling nozzle 1 is inserted into the fuel tank, the output sensor 11 If the oil type of the oil liquid in the fuel tank is light oil, the output level of the oil type detection sensor 10 gradually increases within a certain period of time after the insertion is detected, and the insertion level and the gasoline / light oil identification level In contrast, when the oil type of the oil liquid in the fuel tank is gasoline, the output level of the oil type detection sensor 10 sharply rises to a level exceeding the gasoline / light oil identification level. ing. Therefore, when a predetermined time has elapsed after the nozzle is inserted into the vehicle fuel tank, the refueling device 11 determines whether the fuel is gasoline or light oil based on the level at which the nozzle is located. Next, a refueling process in the refueling device of the present embodiment having the above configuration will be described. When the refueling worker removes the refueling nozzle 1 from the nozzle storage section to start refueling work on the vehicle, the nozzle switch 12 turns on.
(Step SP1), the control device 13 drives the intake / exhaust pump 9 to rotate forward based on the ON signal from the nozzle switch 12 to start the intake operation by the intake / exhaust hose 8, and as a result, the oil vapor (Step SP2). Next, when the refueling worker inserts the refueling nozzle 1 into the vehicle fuel tank, the insertion sensor 11 detects the insertion of the nozzle, and oil vapor is sucked from the inside of the fuel tank by the intake / exhaust hose 8 (step SP3). As a result, when oil vapor in the fuel tank is sucked into the oil type detection sensor 10 via the intake / exhaust hose 8, a detection signal corresponding to the oil vapor concentration is output from the oil type detection sensor 10, and the control device Reference numeral 13 denotes the oil type of the oil liquid in the fuel tank into which the oil supply nozzle 1 has been inserted, based on the level of the detection signal output from the oil type detection sensor 10 when a predetermined time has elapsed after the insertion sensor 11 detects the insertion. Is detected as gasoline or light oil (step SP4). When the control device 13 detects the oil type of the oil liquid in the vehicle fuel tank as light oil in step SP4, it determines whether or not the refueling operator has opened the nozzle operation switch 16 to start refueling (step SP5). If the refueling is started, the corresponding light oil solenoid valve 6 is opened (step SP6), and then the light oil refueling pump 7 is driven (step SP7). Thereby, refueling of light oil from the refueling nozzle 1 to the vehicle fuel tank becomes possible. On the other hand, when the control device 13 detects that the oil type of the oil liquid in the vehicle fuel tank is gasoline in step SP4, the control device 13 determines whether the refueling operator has opened the nozzle operation switch 16 to start refueling (step SP4). SP8) If refueling is started, open gasoline solenoid valve 3 (step
SP9), and drives the gasoline refueling pump 4 (step S)
P10). Thereby, refueling of gasoline from the refueling nozzle 1 to the vehicle fuel tank becomes possible. Further, when a predetermined time has elapsed from the drive of the oil supply pump, the control device 13 drives the intake / exhaust pump 9 to rotate in the reverse direction to exhaust the oil vapor to the outside of the oil supply device via the intake / exhaust hose 8 (step SP11). Thereafter, the refueling worker refuels the oil liquid (gasoline or light oil) from the refueling nozzle 1 into the fuel tank of the vehicle (step SP12). The control device 13 determines whether or not the refueling of the vehicle has been completed, that is, the refueling operator presses the nozzle operation switch 16 of the refueling nozzle 1 with the completion of the refueling of the predetermined amount of the oil liquid into the vehicle fuel tank to thereby terminate the refueling. It is determined whether or not it has been instructed (step SP13). If it is determined that refueling has been completed, the corresponding solenoid valve opened in step SP6 or SP9 is closed (step SP14), and then step SP7 or step The corresponding refueling pump driven in SP10 is stopped (step SP15). Next, the control device 13 determines whether or not the refueling operator has returned the refueling nozzle 1 to the nozzle storage section, that is, whether or not the output of the ON signal from the nozzle switch 12 has been stopped (step SP16). When the refueling worker returns the refueling nozzle 1 to the nozzle housing portion, that is, when the output of the ON signal from the nozzle switch 12 is stopped, the refueling operation is completed.

[Modification] In the above embodiment, the optical insertion sensor 11 for detecting nozzle insertion is provided at the tip of the discharge pipe 1A of the refueling nozzle 1. However, the configuration of the insertion sensor is not limited to this. Also, the arrangement of the insertion sensor 11 is omitted, and the oil type detection sensor is omitted.
The nozzle insertion detection and the oil vapor detection can be shared by 10. In this case, the control device 13 determines that the nozzle is inserted when the output level of the oil type detection sensor 10 reaches the insertion level as shown in FIG. In the following cases, the oil type is determined to be light oil, and when the output level exceeds the gasoline / light oil identification level, the oil type is determined to be gasoline. Further, in the above embodiment, two oil types of gasoline / light oil are separately supplied from one oil supply nozzle. However, the present invention is not limited to this, and two oil types of combinations other than gasoline / light oil are used. Can be individually supplied, or two or more kinds of oil liquids can be individually supplied. Further, it is also possible to control the opening of only the corresponding electromagnetic valve based on the oil type identification result, and to drive the oil supply pump independently of the oil type identification result. Further, it is also possible to omit the arrangement of the solenoid valve and drive-control only the corresponding oil supply pump based on the oil type identification result.

【The invention's effect】

According to the present invention as described above, a refueling nozzle,
One side is connected to the oil supply nozzle, and the other side is connected to respective oil liquid storage tanks of different oil types via liquid sending means, and the oil type of the oil liquid in the tank into which the oil supply nozzle is inserted is determined. The oil type identification means and the control means for driving only the liquid supply means of the piping connected to the oil liquid storage tank of the oil type determined by the oil type identification means have the following configuration. The effect can be achieved. Since a single refueling nozzle can supply oil of the oil type that matches the refueling target container (vehicle fuel tank) out of multiple oil types, the refueling worker can determine the applicable oil type of the refueling target container and Complexity such as setting a suitable oil type based on the determination can be eliminated, and the refueling preparation work can be performed quickly and efficiently.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of an oil supply device according to an embodiment of the present invention;
FIG. 2 is an output characteristic diagram of the oil type detection sensor of this embodiment, and FIG.
FIG. 5 is a flowchart of a refueling process of the refueling device of the present embodiment. 1 ... refueling nozzle, 2 ... gasoline piping (piping), 3
…… Solenoid valve for gasoline (liquid sending means), 4 …… Gas refueling pump (liquid sending means), 5 …… Pipe for gas oil (pipe),
6: Solenoid valve for light oil (liquid sending means), 7: Oil supply pump for light oil (liquid sending means), 10: Oil type detection sensor (oil type identifying means), 12: Nozzle switch, 13: Control Device (control means).

Claims (1)

(57) [Claims] 1. A refueling nozzle, a pipe connected on one side to the refueling nozzle, and connected on the other side to respective oil liquid storage tanks of different oil types via liquid sending means, and a tank into which the refueling nozzle is inserted. Oil type identification means for identifying the oil type of the internal oil liquid; and control means for driving only the liquid supply means of a pipe connected to the oil liquid storage tank of the oil type determined by the oil type identification means. An oil supply device comprising: