JPH02221799A - Engine oil changer - Google Patents

Abstract

PURPOSE:To improve operability as well as to aim at the promotion of reduction in a change time by installing a flushing mechanism, an oil draining mechanism and an oil mechanism, respectively, and also installing an automobile engine driver linking up with this flushing mechanism. CONSTITUTION:A fresh oil tank 2, a waste oil tank 3, a reutilizing tank 4 and a fresh oil storage tank 5 where new engine oil is stored are all installed side by side. These tanks 2-5 are set on one load cell 6, and on a control panel 16, there is provided a ten-key 17 for presetting an engine oil supply. Also there is provided an engine driver 26 with a connector 26a being connected to an ignition switch of a engine. First, of all, the connector 26a of this engine driver 26 is connected to the ignition switch of the automobile engine, presetting the oil supply, and a nozzle 14 is inserted into an oil pan and, after a start switch SW is turned on, all operations ranging from old engine oil draining to new oil supplying via flushing are automatically performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus installed at a gasoline filling station or the like for changing the engine oil of an automobile.

(Prior Art) In addition to refueling automobiles with gasoline, these filling stations also change engine oil, and this engine oil changing device is disclosed in Japanese Patent Application No. 63-263, which was previously proposed by the applicant.
There is one shown in No. 459.

This system integrates a brushing device that cleans the inside of the oil pan after draining old engine oil into a device that has an engine oil exchange function, and performs engine oil draining, brushing, and engine oil supply operations in the same place. This system allows the entire process from draining old engine oil to supplying new engine oil to be carried out continuously using one device. It is divided into four processes: extraction, supply of new brushing oil, extraction of new brushing oil, and supply of new engine oil.A start switch is provided for each process to start each process. Each is operated continuously.

[Problem to be solved by the invention]

Therefore, even though the process from draining old engine oil to supplying new engine oil can be performed continuously in the same place, in order to start each of the four processes, a separate start switch must be pressed each time. Required operation.

In addition, during brushing, the car engine is left to idle for a predetermined period of time, but starting and stopping the engine must be done manually by a worker or car driver, which is time-consuming and requires a lot of effort. It is necessary to wait at the car during the exchange operation.

The purpose of the present invention is to eliminate the inconveniences of the conventional example, and eliminates the need to operate switches etc. between draining old engine oil and supplying new engine oil, and also eliminates the need to operate the car's engine and stop it. It is an object of the present invention to provide an engine oil changing device which can save manpower, improve operability, and shorten a series of oil changing times.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a brushing mechanism,
The gist of the present invention is to provide an automobile engine drive device that includes an oil extraction mechanism and an oil supply mechanism, and that cooperates with the brushing mechanism.

[Effect]

According to the present invention, by connecting the engine driver of the automobile to the automobile engine, the driving of the automobile engine is automatically started at a predetermined time during the brushing operation,
Stop again. Therefore, the process of starting and stopping the engine is automatically incorporated into the oil change process, making it possible to fully automate the oil change process.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is an explanatory diagram showing an embodiment of the engine oil changing device of the present invention, in which an engine oil tank and a brushing oil tank are arranged on one load cell, and the tank detected by the load cell is This is a type that controls oil changes based on changes in total weight.Case 1 contains a new oil tank 2 that stores new brushing oil, and a waste oil tank that stores old engine oil and the brushing oil used for the first brushing. 3.
A reuse tank 4 for storing brushing oil used for the second brushing and a new oil tank 5 for storing new engine oil are arranged side by side, and these tanks 2 to 5 are arranged on one load cell 6. .

New oil tank 2, waste oil tank 3, reuse tank 4 and new oil tank 5 have pipes 11a, 12a + 12b + If with valves 7, 8゜9, 10 installed in the middle, respectively.
One end of the pipe 11a is opened, the other end of the pipe 11a is connected to a hose 13a outside the case l via a pump 15a, and the other ends of the pipe 12a and the pipe 12b are connected to a common pipe via one forward/reverse pump 15b. 11b, and the other end of the tube 11b is connected to a hose 13b also outside the case 1, and the other end of the tube 11c is connected to a hose 13c outside the case 1 via a pump 15c. A common nozzle 14 is attached to the tips of these hoses 13a to 13c.

As described above, tanks 2 to 5 and pumps 15a to 15c are
An operation panel 16 is provided above the housing 1 where the following components are arranged, and the operation panel 16 includes a start switch SW for starting a series of operations for changing the engine oil, and a preset amount of engine oil to be supplied. A numeric keypad 17 is provided as an input key for inputting information.

Furthermore, arranged on the installation panel 16, there is provided an alarm 18 that notifies the end of the engine oil change by voice or the like, and a display 19 that displays the preset amount, etc., and a connector 26a that connects to the ignition switch of the engine of the automobile. An engine driver 26 is provided.

In the figure, 20 indicates an input/output device (Ilo) 21, a storage device (RAM) 22, a storage device ffi (ROM) 23, a clock circuit 24, and a central processing unit f (CPU), as shown in the block diagram of FIG. 25, which uses a conventionally well-known microcomputer, etc., including the start switch 5W10, a cell 6, and a numeric keypad 17.
The output signal from the control device 20 is introduced into the control device 20, and the control signal from the control device 20 is transmitted to the pump 15ax15c, the valve ? ,
8,9,10. It was introduced into the display 19, the alarm 18, and the engine driver 26.

Next, to explain the usage and operation, to replace the engine oil, first connect the connector 26a of the engine driver 26 to the ignition switch of the car engine, and then insert the nozzle 14 into the oil pan of the car. Insert the preset amount Wp, for example 4I!, using the numeric keypad 17 as shown in the flowchart of FIG. , set Step 1), then press the start switch SW (Step 1).

Then, this ON signal is input to the control device 20, and the new oil tank 2, waste oil tank 3, and reuse tank 4 on the load cell 6 are
and the current total weight W of the new oil tank 5.

is temporarily stored in the control device 20 (step entry).

Next, the valve 8 is opened by the action of the control device 20, and at the same time the pump 15b is reversed (Step C), and the old engine oil in the oil pan is sucked in through the nozzle 14 and the hose 13b.
, through the pipe 11b1 and the pipe 12a, and is discharged into the waste oil tank 3 and stored there.

During this time, the total weight W of the tanks 2 to 5 continues to be detected by the control device 20 based on the output from the load cell 6, and when all the old oil in the oil pan is drained and the nozzle 14 starts sucking air, the total weight W of the tanks 2 to 5 continues to be detected by the output from the load cell 6. Since there is no change in , and it remains constant (Step 2), it is determined that the oil removal is complete at this point, and the valve 8 is closed and the pump 15b is stopped (Step E).

Here, the total tank weight Wz, which is the sum of the weight of the old engine oil that has been extracted to the total tank weight W1 before the start of old engine oil extraction, is newly stored (go to step).
.

Then, by the action of the control device 20, the valve 9 opens and the pump 15b rotates forward, and the once-used brushing oil in the reuse tank 4 passes through the pipe 12b, the pipe 11b, and the hose 13b. It is supplied into the oil pan from the nozzle 14 (stepped).

The amount of brushing oil supplied at this time is determined in advance by the control device 20 based on the total tank weight W, + (Wz Wl ) x O3
5, that is, it is set to supply half the amount of brushing oil of the amount of old engine oil that was extracted, and when this supply amount is reached (Step 1),
The valve 9 is automatically closed by the action of the control device 20 and the pump 15b
stops, and the brushing oil supply stops (Stellapuri).

Next, the control device 20 outputs the signal to the engine driver 26, which operates, turns on the ignition switch, and starts idling the engine (Step 1). After idling for a predetermined period of time T, for example, 5 minutes (stellar pull), the control device 20 outputs an output again to the engine driver 26 to stop the engine driving and end the idling (step 2).

In this way, the first brushing is completed, and then the second brushing is completed.
Move on to the second brushing.

First, the current tank assembly type IT W 2, which has been supplied with the first brushing oil from the reuse tank 4, is newly added to the control device 2 based on the output from the load cell 6.
Stored at 0 (step force).

Then, the valve 8 opens, the pump 15b reverses, and the brushing oil used for the first brushing in the oil pan is sucked up by the nozzle 14, and the hose 13b1 pipe 1
1b and pipe 12a into the waste oil tank 3,
When the total tank weight W stored here (step port) and detected by the output from the load cell 6 no longer increases and becomes constant (step force), as in the case of old engine oil extraction described above, It is determined that air is being sucked in from the nozzle 14, that is, that the extraction of brushing oil has been completed, and the valve 8 is closed to stop the pump 15b (sterer pump).

Next, open the valve 7, rotate the pump 15a in the normal direction, suck up new brushing oil from the new oil tank 2,
Oil is supplied to the oil pan through the nozzle 14 through the hose 13a (step force). Then, when the tank assembly type 1w becomes W, that is, when the same amount of flancing oil as the first brushing oil is refilled and the weight reaches the same as before the brushing oil was removed (step), the control device 2o automatically closes the valve 7 and stops the pump 15a (stepper), completing the new second brushing oil supply.

Next, the power is output from the control device 20 to the engine driver 26 and the engine starts idling (step force). When the engine has been idling for a predetermined time T, for example, 5 minutes (step), the engine drive is stopped by the action of the control device 20 and the idling ends (step).

In this way, the second brushing is completed, and then the second brushing oil is removed.

In this process, the valve 9 opens and the pump 15b reverses (step O), and the brushing oil used for the second brushing in the oil pan is transferred from the nozzle 14 to the hose 1.
3b, recycle tank 4 through pipe 11b1 pipe 12b
It is discharged inside and stored here for use during the next first brushing.

Then, when all the brushing oil in the oil pan has been drained and there is no change in the total tank weight W (step 1), it is determined that the brushing oil has been removed and the valve 9 is closed to stop the pump 15b (step 2). .

In this way, the entire brushing process is completed, and next, the process moves to the process of refueling with new engine oil.

The tank assembly type 1w at this point is temporarily stored in the control device 20 (step code).

Then, the valve 10 is opened by the action of the control device 20, and the pump 15
c rotates forward (Step E), and new engine oil in the new oil tank 5 is supplied into the oil pan from the nozzle 14 through the pipe 11C and hose 13c.

After refueling in this way, when the tank assembly type 1w reaches the amount obtained by subtracting the preset amount Wp from the total weight W4 before refueling, it is determined that the preset amount has been refueled (step te), and automatically The valve 10 closes, the pump 15c stops (step-a), and the alarm 18 notifies the end of the exchange (step-a).

As described above, after first connecting the connector 26a of the engine driver 26 to the ignition switch of the automobile engine, presetting the amount of oil to be supplied, inserting the nozzle 14 into the oil pan, and turning on the start switch SW, A series of operations, from draining old engine oil to brushing and supplying new engine oil, are all performed automatically.

Finally, the end of the oil change is notified, so even if you are doing other work at a location far from the oil change device, you can know that the oil change has ended.

〔Effect of the invention〕

As mentioned above, the engine oil change IT of the present invention is
The entire series of operations, from draining old engine oil to brushing and supplying new engine oil, can be performed automatically, so unlike conventional methods, there is no need to operate a switch or start or stop the car's engine during the replacement process. Since it does not have to be done manually, it is possible to save labor, and since it is only necessary to set the start of oil change, it is easy to operate and the time required for oil change can be shortened.

[Brief explanation of the drawing]

FIG. 1 is an explanatory front view showing an embodiment of the engine oil exchange device of the present invention, FIG. 2 is a block diagram of the same, and FIG. 3 is a flowchart showing the operation. 1... Case 2... New oil tank 3...
Waste oil tank 4...Reuse tank 5...New oil tank 6...Load cell? , 8. 9.10・
...Valves 11a, ttb, llc, 12a+ 12b...
・Pipe 13 a + 13 b + 13 c ・=Hose 14...Nozzle 15 a + 15 b + 15 c ・=Pump 1
6...Operation panel 17...Numeric keypad 18...
- Alarm device 19... Display device 20... Control device 21... Input/output device (Ilo) 22...
Storage device (RAM) 23... Storage device (ROM) 24... Clock circuit 25... Central processing unit (
CPU) 26...Engine driver 26a...Connector applicant Tokyo Tatsuno Co., Ltd.

Claims (1)

[Claims] An engine oil exchange device comprising a brushing mechanism, an oil draining mechanism, and an oil supply mechanism, and further comprising an automobile engine driver that cooperates with the brushing mechanism.