JP3057513B2 - Torcon oil changer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a device for exchanging oil of a torque converter (torque converter) of an automobile, for example, as an oil exchange device installed in a gasoline filling station or the like.

[Conventional technology]

Conventionally, as a torque converter oil changing device, for example,
No. 3,318,395.

This is, as shown in FIG.
And a new oil container 3. One end of an oil extracting hose 4 is opened through the pipe 11 as an oil extracting mechanism in the waste oil container 2, and a sampling pump is provided in the middle of the pipe 11 connected to the oil extracting hose 4. 5 is provided.

One end of an oil supply hose 6 is opened through a pipe 12 as an oil supply mechanism in the new oil container 3, and a supply pump 8 is provided in the pipe 12 connected to the oil supply hose 6.

A tubular nozzle 9 that can be inserted into an oil pan through a gauge hole is attached to the tip of the oil technique hose 4 and the oil supply hose 6.

In the figure, reference numeral 10 denotes a load cell for measuring the amount of extracted oil and the amount of supply as weight, and the waste oil container 2 and the new oil container 3 are placed on the load cell 10.

When the oil is changed, the nozzle 9 is inserted into the gauge hole of the automobile, the tip of the nozzle 9 is inserted into the oil pan, and the extraction pump 5 is driven.

The old oil in the oil pan is sucked up by the nozzle 9 by the suction pressure of the extraction pump 5, and
Through the waste oil container 2.

Then, the supply pump 8 is driven to suck up new oil from the new oil container 3 and supply it from the nozzle 9 to the oil pan through the oil supply hose 6.

Such an operation is repeated three to four times, and the replacement operation is completed.

[Problems to be solved by the invention]

As described above, the conventional torque converter oil changing device draws waste oil from the oil pan by the nozzle, supplies new oil to the oil pan, drives the engine, and sends the new oil from the oil pan to the torque converter. Therefore, when the engine is driven, the returned waste oil is mixed into the new oil in the oil pan, and the replacement efficiency is poor.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a torque converter oil changing device which can solve the above-mentioned disadvantages of the prior art and can increase the efficiency of changing oil.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a waste oil container as an oil extraction mechanism, an oil extraction hose connected to a pipe inserted into the waste oil container, a new oil container as an oil supply mechanism, and a supply pump. An oil supply hose connected to a pipe inserted into an oil container is provided. In a torque converter oil exchange device in which the oil extraction flow path and the oil supply flow path are juxtaposed with fittings, the oil extraction hose and the oil supply Each end of the hose is connected by the joint fitting in the middle of the oil passage on the vehicle side, and the inlet of the joint fitting can be connected to the oil cooler side of the oil passage on the vehicle side via a quick coupling. The outlet has an outlet that communicates with the oil extraction hose via the quick coupling, and the outlet has an oil flow on the automobile side that connects via the quick coupling. Is an integral metal fitting having a supply flow path in which the inflow port communicates with the oil supply hose via a quick coupling, and the extraction flow path and the supply flow path are each formed at a right angle on the way. The bend, the inlet of the extraction flow path and the outlet of the supply flow path are positioned on straight lines facing in opposite directions, and the pressure of each flow path is applied to a partition wall that borders the extraction flow path and the supply flow path. Sometimes, a bypass valve communicating with each other is provided, a quick coupling is provided at an outlet of the extraction flow path, a check valve is provided near the outlet and opened in the extraction direction in the middle of the extraction flow path, and a supply flow is provided. Providing a quick coupling at the inlet of the passage, providing a check valve located near the inlet and opening in the supply direction in the middle of the supply passage, the mission side of the oil passage at the inlet of the extraction passage,
When the oil cooler side of the oil flow path is connected to the outlet of the supply flow path, each flow path is located downstream of the check valve provided in the extraction flow path and upstream of the check valve provided in the supply flow path. The gist of the present invention is to provide a swivel capable of switching a path and rotatably connect the middle of the flow path.

[Action]

According to the present invention, since the joint fitting is connected in the middle of the oil flow path on the vehicle side, the oil extraction hose is connected to the oil cooler via the joint fitting, and the oil supply hose is jointed with the fitting fitting. Connected to the mission via the quick coupling at the tip of the.

Therefore, when the engine is driven, the oil flowing from the oil cooler to the mission is extracted by the oil extraction hose before entering the mission, and stored in the waste oil container.

At the same time, new oil pumped from the new oil container by the supply pump to the mission is supplied from the oil supply hose, so that the extraction flow path and the supply flow path are inserted further into the oil flow path of the car. Since the supply is performed simultaneously with the withdrawal, and a large annular flow path is formed as a whole, the exchange efficiency is improved as compared with the related art.

Even if you accidentally connect the connection hose to the mission side and the oil supply hose to the oil cooler side and connect the connection hose to the fitting, disconnect the connection hose and the fitting. Even if it is not necessary to start over again, it is possible to easily establish a proper connection by rotating the joint fitting and replacing the flow path.

In addition, in the case of the erroneous connection as described above, the oil extracted on the supply flow path side is prevented from flowing to the new oil container side by the check valve on the supply flow path side, and flows to the extraction flow path side via the bypass valve.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an explanatory view showing an embodiment of a torque converter oil changing device according to the present invention, in which the same components as those of FIG. 3 showing the conventional example are denoted by the same reference numerals.

A waste oil container 2 and a new oil container 3 are housed in a case 1, and one end of an oil extraction hose 4 is opened through the pipe 11 as an oil extraction mechanism in the waste oil container 2. One end of an oil supply hose 6 was opened through a pipe 12 as a supply mechanism, and a flow meter 7 and a supply pump 8 were provided in a pipe connected to the oil supply hose 6.

In the figure, reference numeral 10 denotes a load cell for measuring the amount of extracted oil and the amount of supply as weight, and the waste oil container 2 and the new oil container 3 are placed on the load cell 10.

On the other hand, the automatic transmission body 13
An oil pan 14, a pump 15 and a torque converter 16 are sequentially connected, and the automatic transmission body is
The torque converter 16 and the inflow side of the oil cooler 18 and the outflow side of the oil cooler 18 are connected to the transmission 17 of the automatic transmission body 13 by a rubber connection hose 20.

In the present invention, oil is changed by removing the connection hose 20 and attaching the fitting 21.

FIG. 2 shows the details of the fitting 21. The outlet 40 is connected to an oil cooler via a short hose 40, the outlet is connected to an oil extraction hose 4, and the outlet is connected to a connecting hose. An integral fitting having a supply flow passage 23 having an inflow port communicating with the oil supply hose 6 arranged side by side with the mission through the transmission 20, the extraction flow path 22 and the supply flow path 23 are each formed at a right angle in the middle. And the inlet of the extraction channel 22 and the outlet of the supply channel 23 are arranged in a straight line in opposite directions, and the outlet of the extraction channel 22 and the inlet of the supply channel 23 are parallel to each other. The whole is T-shaped so as to line up.

Then, check valves 25a and 25b made of spheres are provided in the middle of the extraction channel 22 and the supply channel 23.

To connect the fitting 21 to the ends of the oil extraction hose 4 and the oil supply hose 6, the extraction passage 22
Male portions 26a and 27a of the quick coupling are provided at the outlet of the oil supply and the inlet of the supply channel 23, respectively, while the female portions 26b and 26b of the quick coupling are provided at the ends of the oil extraction hose 4 and the oil supply hose 6, respectively. 27b, the male part 26a and female part 26b of these quick couplings are fitted, and the male part 27a and female part 27b of the quick coupling are fitted.

Male parts 28a, 29a of the quick coupling are also provided at the inlet of the extraction channel 22 and the outlet of the supply channel 23 of the joint fitting 21,
At the ends of the short hose 40 and the connection hose 20, female parts 28b and 29b of the quick coupling that can be fitted to the male parts 28a and 29a of the quick coupling are attached.

The short hose 40 connected to the oil cooler 18 is a short hose prepared as a separate part.

The female parts 28b, 29b of the quick coupling have different diameters of the connecting hose 20 depending on the vehicle type, so that several types of female parts 28b, 29b are prepared.
Consideration was given so that it could fit into b.

When the connection hose to the oil cooler is of a screw-in type, metal fittings corresponding to the vehicle type are prepared at the connection portions of the connection hose 20 with the oil cooler 28a, 29a.

A partition wall that forms a boundary between the extraction channel 22 and the supply channel 23
24 includes a bypass valve 31 that communicates with each other when each flow path is pressurized.
a, 31b are provided.

In addition, the T-shaped fitting 21 has a swivel
By connecting the swivel 32 by 180 ° before and after the swivel 32, each of the channels 22 and 23 can be switched.

 In the drawing, reference numeral 34 denotes a positioning ball at the time of rotation.

 Next, usage and operation will be described.

To set the device of the present invention, remove the connection hose 20 connected to the outflow side of the oil cooler 18, attach the female portion 29b of the quick coupling to the connection hose 20,
It is connected to the male part 29a of the fitting 21 and the short hose 40 is connected to the outflow side of the oil cooler 18.

In this way, as shown in FIG. 1, between the oil cooler 18 and the mission 17, a short hose 40, a joint fitting 21,
The connection hoses 20 are connected in this order.

 The engine is driven, and the supply pump 8 is turned on at the same time.

When the engine is driven, the pump 15 rotates, and oil flows from the oil cooler 18 to the mission 17,
This oil passes through the extraction channel 22 of the fitting 21 as waste oil,
The oil is collected in the waste oil container 2 from the oil extraction hose 4 through the pipe 11.

At the same time, new oil is pumped from the new oil container 3 by the supply pump 8, passes through the pipe 12, the oil supply hose 6, the supply flow path 23 of the fitting 21, flows out of the connection hose 20, and flows to the mission 17.

In this case, in order to match the amount of waste oil stored in the waste oil container 2 with the amount of new oil supplied from the new oil container 3, the load cell 10
Then, the control unit which receives the output from the load cell 10 controls the supply pump 8 so that these are equalized.

 Then, the supply amount of the new oil is measured by the flow meter 7.

When the refueling of the preset amount is completed, the operation is stopped.

If almost all of the oil coming out of the oil cooler 18 becomes new oil, the sensor may detect the transparency of the oil and determine that the replacement operation has been completed. .

Then stop the engine and replace the short hose 40 with an oil cooler.
Remove the connection hose 18 and reconnect the connection hose 20 to the oil cooler 18.

By the way, when the outflow side of the oil cooler 18 is connected to the supply flow path 23 and the inflow side of the mission 17 is connected to the extraction flow path 22, the connection between the connection hose 20, the short hose 40 and the fitting 21 is disconnected. Even if it is not necessary to start over again, by rotating the portion of the joint fitting 21 connected by the swivel 32 and exchanging the flow path, a normal connection can be easily established.

In addition, when the supply pump 8 tries to feed new oil to the outflow side of the oil cooler 18 due to such incorrect connection, a reverse flow occurs, and the supply flow path 23 in the fitting 21 is pressurized, so that the bypass valve 31b is opened. However, this can be bypassed to the extraction channel 22 to ensure safety.

The same applies to the case where the connection fitting 21 is incorrectly connected to the oil extraction hose 4 and the oil supply hose 6, and the safety can be achieved by opening the bypass valve 31a.

〔The invention's effect〕

As described above, in the torque converter oil changing device of the present invention, the oil flowing from the oil cooler to the mission is extracted by the oil extracting hose before entering the mission, and new oil is supplied to the mission from the oil supply hose. Therefore, the exchange efficiency can be improved.

Also, even if connection hoses and fittings are connected by mistake, such as connecting the oil extraction hose to the mission side and the oil supply hose to the oil cooler side, the connection between these connection hoses and the fittings should be continued. Even without removing and retrying, by rotating the joint fitting and exchanging the flow path, the normal connection can be easily established.

In the case of the erroneous connection as described above, the oil extracted on the supply flow path side is prevented from flowing to the new oil container side by the check valve on the supply flow path side, and flows to the extraction flow path side via the bypass valve. , Can also ensure safety.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing one embodiment of a torque converter oil changing device according to the present invention, FIG. 2 is a vertical sectional front view of a fitting fitting of a main part of the same, and FIG. 3 is an explanatory view showing a conventional example. DESCRIPTION OF SYMBOLS 1 ... Case, 2 ... Waste oil container 3 ... New oil container 4, ... Oil extraction hose 5 ... Extraction pump, 6 ... Oil supply hose 7 ... Flow meter, 8 ... Supply pump 9 ... ... Nozzle, 10 ... Load cell 11,12 ... Piping 13 ... Automatic transmission body 14 ... Oil pan, 15 ... Pump 16 ... Torque converter, 17 ... Mission 18 ... Oil cooler, 19,20 ... Connection hose 21… Fitting fitting, 22… Extraction channel 23… Supply channel, 24… Partition wall 25a, 25b… Check valve 26a, 27a, 28a, 29a… Male part of quick coupling 26b , 27b, 28b, 29b ... Female part of quick coupling 31a, 31b ... Bypass valve, 32 ... Swivel 40 ... Short hose

──────────────────────────────────────────────────続 き Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B67D 5/00-5/04 B16N 37/00

Claims (1)

(57) [Claims] A waste oil container is provided as an oil removal mechanism, an oil removal hose connected to a pipe inserted into the waste oil container is provided, and a new oil container and a supply pump are provided as an oil supply mechanism and inserted into the new oil container. In a torque converter oil exchange device in which an oil supply hose connected to a pipe is provided and the oil extraction flow path and the oil supply flow path are juxtaposed by fittings, respective ends of the oil extraction hose and the oil supply hose are provided. Is connected by the joint fitting in the middle of the oil passage on the vehicle side, and the joint fitting can be connected to the oil cooler side of the oil passage on the vehicle side via a quick coupling, and the outlet is connected to the quick coupling. The extraction passage that communicates with the oil extraction hose through the oil outlet, and the outlet connects to the transmission side of the oil passage on the vehicle side through the quick coupling. The inlet is an integral metal fitting having a supply passage communicating with an oil supply hose via a quick coupling. The extraction passage and the supply passage are each bent at a right angle in the middle, and the extraction passage is formed. And the outlet of the supply flow path are positioned on a straight line facing in opposite directions, and communicate with each other at the time of pressurization of each flow path to a partition wall that borders the extraction flow path and the supply flow path. Providing a bypass valve, providing a quick coupling at the outlet of the extraction flow path, providing a check valve located near the outlet and opening in the extraction direction in the middle of the extraction flow path, and at the inlet of the supply flow path A quick coupling is provided, and a check valve is provided near the inflow port to open in the supply direction in the middle of the supply flow path. The mission side of the oil flow path is provided at the inflow port of the extraction flow path, and the flow path of the supply flow path is provided. The oil cooler side of the oil flow path is connected to the outlet When it is,
A swivel that can switch each flow path is provided downstream of the check valve provided in the extraction flow path and upstream of the check valve provided in the supply flow path, and the middle of the flow paths is connected rotatably. Characteristic torque converter oil changer.