CN1116693A - Apparatus and method for automatic transmission system fluid exchange and internal system flushing - Google Patents

Abstract

A method and an apparatus are provided for complete fluid exchange and internal system flushing of an automatic transmission system as the transmission system operates. The apparatus is connectable to the transmission system and, in a preferred embodiment, is operable at an adjustable output fluid flow rate and pressure setting to act as an independent fluid supply and storage system for the automatic transmission system in the course of a fluid exchange and flushing operation. In addition to its application to an automatic transmission system, the apparatus of the present invention can be used to flush the fuel system of any internal combustion engine.

Description

The equipment and the method that are used for automatic transmission system fluid exchange and internal system flushing

The present invention relates to change with old automatic transmission fluid and the automatic transmission system internal surface is exempted from the equipment and the method for demolition clean.In addition, some embodiments of the present invention are used for the oil-fired system of internal-combustion engine is cleaned, and cleaning part comprises oil supply pipeline, Injection Pump, air inlet system, oil pressure regulator, nozzle, Carburetor and oil returning tube.

In the automatic transmission system of Motor Vehicle and similar machinery, come transmission fluid is stored, transmits, carried or handles through tight closed conduit, chamber, discharge orifice, mechanical mechanism or suction/instrumentation, all these devices all need regular internal cleaning to guarantee the life-span of normal operation and system.This cleaning has also improved the expense (cost) of effective use, this is because the by-product that produces in the sediments of the dirt in the transmission fluid, additive or the automatic power transport process, can produce jam and cause too early wearing and tearing part in the system, perhaps suppress the function and the transmission characteristics of system.If the dirt such as sediments, colloidal material, lacquer, the oil of burning, the sediments of wearout parts, the residue of transmission additive of dust, oil or the like, thoroughly do not clean out from automatic transmission system, so, they cause probably:

Quicken slowly to hesitate.

Not steady when automatic gear-shifting, trip stop, shift is slow, the gear drift, engage a gear point is incorrect, undue wriggling and abnormal shake.

Wrong shelves or pinning.

Transmission fluid exhausts too early and causes that transmission fluid exceeds the quata to consume and overheated.

Drivetrain components is worn and torn too early, causes that systemic-function degenerates rapidly, and some other signs.

If above problem can not in time be solved, may need transmission system has been carried out the overhaul of an expense costliness.

The industry is noticed the problem and the difficulty of being met when automatic transmission system is cleared up.Avoiding the modal method of these problems is the periodic replacement transmission fluid.But because the present reasons in structure of general automatic transmission system, once typical transmission fluid is changed and only can be changed 25% to the used liquid that is slightly more than 55%.

The conventional method of changing automatic transmission fluid is manually to open oil groove or use a suction pipe that inserts dipping tube to discharge the transmission fluid of oil groove apoplexy involving the solid organs, subsequently fresh transmission fluid is charged into oil groove.In changing oil groove, in the transmission fluid, also must reinstall pad, filter, and oil groove is installed again.The method of these maintainings transmission fluid 45%-75% is dirty or that burnt is stayed in transmission system and chamber and the part.For instance, fluid torque converter, valve body, clutch cavity, pipeline or the like, even after this transmission fluid is changed, all residual have an old automatic transmission system fluid of a large amount of usefulness.

Up to now, change other unique selection of useful old transmission fluid be to carry out once automatic transmission system overhaul completely.But, clearly this fierceness and expensive method are not taken like a shot by the transmission system maintenance of normal state.Also use at present some other in order to solve the method for automatic transmission system cleaning maintenance problem.These methods comprise between twice transmission replacing uses commercially available transmission fluid additive.Such additive can improve the physics or the chemical characteristics of transmission fluid usually.Such as they can increase viscosity, improve thermal conductivity, and stop the oxidation of inner body.

Also have a kind of method of using is to add a kind of commercially available transmission system scale removal solvent before changing liquid at every turn.When transmission system was in normal state and is engine running, the scale removal solvent circulated in transmission system with dissolving and removing dirt with mixture with old transmission fluid.After this cleaning operation finishes, still use traditional suction method to remove to use the mixed solution of old transmission fluid and scale removal solvent.But, with previously mentioned the same, only can really remove 25%-55% mixed solution by this approach.

From above-mentioned discussion, we reach a conclusion, and think that the method for liquid is left over the old transmission fluid of a great deal of usefulness down after replacing in the traditional replacing automatic transmission system.Owing to do not dismantle transmission system change useful old transmission fluid be almost impossible, so the regular cleaning of automatic transmission system is difficult to realize.Therefore, the owner of vehicle and equipment fails to have an automatic transmission system of cleaning fully.In fact, the conventional method of cleaning automatic transmission system only is that to delay the automatic transmission system that caused by the dirt in the transmission fluid inevitably damaged.Lack a kind of under the situation of improved alternative maintenance method, the deterioration of automatic transmission system and premature breakage be can expect and obtain giving tacit consent to.Add commercially available additive or use scale remover to change this state if the car owner comes round, in long distance travel, destroy more violent probably.Except leaving the old transmission fluid of a large amount of usefulness, also residual have scale removal solvent or an expired additive in transmission system.If allow these solvents or additive to stay in the automatic transmission system, generally speaking do not have benefit.They can cause unpredictable result and side effect to the different system part.In addition, if use different additives or scale removal solvent, between them unnecessary chemical reaction can take place.

Because aforesaid situation, for a long time, have a kind of like this demand, needs are a kind of can be fully without dismounting device, from automatic transmission system internal pipeline and chamber, remove the useful old automatic transmission system fluid of institute and embed dirt simple, effectively, the low double method and apparatus of price.

In the oil-fired system of internal-combustion engine, come fuel oil is stored, transmits, carried or handles through pipeline, chamber, hole, mechanical device or suction/measuring apparatus firm and that close, all these devices also need regular internal cleaning to guarantee the life-span of normal operation and system, can also guarantee the effect of input cost.If do not clear up, the by-product energy block system retail in the dirt in the fuel oil, the sediments of additive or the combustion process also causes too early wearing and tearing or the function and the transmission characteristics of inhibition system.

And the meaning of the oil-fired system of internal-combustion engine being exempted from demolition clean is well-known, just as discussing in the following U. S. Patent.

The U.S.No.4 of this prosperous U.S. Patent number 4,197,140, Ka Siluo, 520,733, people's such as Rui Yisi U.S.No.4,606,311, the U.S.No.4 of Te Neipu West Germany, 671,230, Taylor's U.S.No.4,787,348, the U.S.No.4 of Ka Maike, 877,043, people's such as glycolylurea U.S.No.4,989,561, people such as Fan Telu 5,097,806.

Therefore, except present routine to automatic transmission system cleaning and evacuating equipment needs, do not need to carry out the cleaning of fuel of internal combustion engine system through loaded down with trivial details repacking, the additional benefit that is provided also is quite attracting.

Following patent relates to the equipment that the vehicle liquid system cleans and/or diagnoses:

The U.S. Patent number U.S.No.4 of Qiao Fei, 127,160, the U.S.No.4 of Ka Siluo, 520,733, people's such as Rui Yisi U.S.No.4,606,311, Taylor's U.S.No.4,787,348, the U.S.No.4 of Ka Maike, 877,043, people's such as glycolylurea U.S.No.4,989,561, people's such as Fan Telu U.S.No.5,097,806.

Qiao Fei has lectured a kind of from fluid circulation system, such as the method and apparatus of wash away debris in the water-cooled automobile cooling system.This is applied to the cooling system of automobile substantially, can not act on the oil-fired system of automatic transmission system or internal-combustion engine.Even under the situation of cleaning cooling system, because the cause of thermostat is housed in the cooling system between radiator and related internal combustion engine, the patented method of Qiao Fei and equipment do not allow the thorough replacing of transmission fluid.Because this equipment is designed to use when internal-combustion engine cuts out, therefore just suppose that the thermostat device is in the closed position, stop all freezing mixtures in this important branch of cooling system, to flow.In order to overcome the defective relevant with the cooling system of partial blockage, the patented method of Qiao Fei need three independently the joint link to each other and a succession of complicated cleaning process with cooling system.Even all can not realize the thorough replacing of cooling liquid at that time.

Ka Siluo has then disclosed and a kind ofly need not dismantle oil spout and clean method and apparatus with the testing automobile fuel injection system.This equipment comprises a solvent--the work feeder of fuel oil mixed solution, a control system and a series of joint.This method comprises the test step that need not dismantle nozzle.Critical step is to start this equipment, flows through the amount of fuel of fuel injection valve by a flowmeter measurement.

People such as Rui Yisi have told about a kind of method and apparatus of exempting from the demolition clean automobile fuel injection system.Including one in this equipment with solvent--the fuel oil mixed solution injects the work feeder of engine oil supply system and the control system of a washer jet when engine running.

Taylor discloses a kind of cleaning diesel engines main body, such as the method and apparatus of inner body, jet pump, oil nozzle, oil circuit.Foregoing is used to remove carbon deposit basically, and comprises a fuel oil supply system, chemical product basin, filtrating equipment and other component.

Ka Maike has described a kind of being contained on the wheelbarrow, can be sent to the other equipment of maintenance motor.This equipment is included in the device of under the pressurization situation cleaning solvent being sent into motor.But, this is only applicable to the cleaning to the oil-fired system of internal-combustion engine.

People such as glycolylurea have disclosed a kind of method and apparatus that cleans induction system of internal combustion engine.This equipment has the device that solvent is directly sprayed into engine aspirating system, and these devices change the operation cycle or the time of spraying, and controls flowing of solvent thus.Comprise a pump unit and a solvent tanker.In when operation, the normal oily stream of flow direction engine is cut off, and motor only depends on burning to be turned round through the solvent of the air metering unit injection engine of equipment by nozzle.Because the operation of this form, this equipment is used for cleaning and air intake system, suction valve and firing chamber.The miscellaneous part of motor such as the fuel oil delivery system, can not be washed.

People such as Fan Telu disclose and have a kind ofly used one to have the fuel of internal combustion engine for preparing in advance and the jar of washing machine solvent liquid cleans fuel injection device for I. C. Engine, the method of valve and firing chamber, this mixed solution enters in the internal combustion engine component by the effect of the pressurized gas that charge in the jar.But, said method is limited on automobile fuel injection system and uses, and and the system that is not included in have any diagnostic function when cleaning.

The present invention comprises the method that a kind of automatic transmission system to Motor Vehicle or similar machine carries out effectively cleaning and changing fast all used or useless transmission fluids.Automatic transmission system comprises a transmission system and independence or external transmission system cooling unit, and both are connected by a liquid delivery tube and form the loop of a closure.At present, the method step that cleans this system comprises: with outside liquid delivery tube independently liquid supply with and bunkerage is together in series, after forming stable flowing state, shift is one time on all gears, then with new transmission fluid import system, at last, when changing used transmission fluid and cleaning solution, adjust the output pressure and the flow velocity of new transmission fluid.

Described in the invention comprises a control gear in order to control equipment and machine assembly operation in order to thorough replacing with old transmission fluid and the equipment that effectively cleans.

This machine assembly provides suction, regulate the function of output pressure and rate of flow of fluid, and some other is such as the filtering function that dirt removal is gone out automatic transmission system, supply with new transmission fluid, reclaim with functions such as old transmission fluid and washing agent mixed solutions, it also provides diagnostic signal, such as hydraulic pressure, flow rate of liquid, the liquid situation that can see, the situation of dirt and identification in the liquid during the cleaning state is with the operational situation of helping judge transmission system.In specific concrete device, the unique design of this equipment makes it can be used for the cleaning and the diagnosis of oil-fired system in addition.

Therefore, an object of the present invention is do not needing to dismantle the method and apparatus of thoroughly removing the old transmission fluid of use under the automatic transmission system situation in order to provide a kind of comprehensively.

One more specifically purpose provide a kind of normal maintenance operation and schedule combines, regularly the automatic transmission system of Motor Vehicle with automatic transmission system or similar machine is carried out the direction and the equipment that effectively clean fast.

Another object of the present invention provides a kind of system diagnostics device, before, during and after application cleaning model of the present invention, realizes diagnostic function whereby, to judge the operational situation of automatic transmission system.

Another free-revving engine of the present invention provides a kind of use equipment flexibly, so not only can be applicable to automatic transmission system, also can be used to clean the oil-fired system of internal-combustion engine and need not on-the-spot repacking.

Another object of the present invention provides a kind of system diagnostics device, before, during and after application cleaning model of the present invention, is to judge fuel of internal combustion engine system operation situation, and can realizes diagnostic function whereby.

A further object of the present invention provide a kind of fully movably, can be by automobile batteries power supply, the equipment that under 12 volts of direct currents, turns round.

A further object of the invention provides a kind of inexpensive, simple in structure and firm equipment of making comparatively speaking.

Other purpose of the present invention and advantage will show in claims and the accompanying drawing from specification subsequently.

In one embodiment of the invention, when automatic transmission system turns round, by providing a kind of inner equipment that cleans and change liquid in the automatic transmission system to realize aforementioned and other purpose, this equipment comprises: one in order to hold the oil tank of the liquid that is used for automatic transmission system; One is communicated with pump, in order to liquid is imported the delivery pipe of automatic transmission system; One supplying pipe from pump guiding delivery outlet, this delivery outlet are applicable to that the pipeline of a guiding automatic transmission system links to each other; With a reflow pipe from inlet opening guiding sewer pipe, this inlet opening is applicable to a pipeline of deriving from automatic transmission system and links to each other, and one of sewer pipe guiding is with the position of handling the waste liquid that flows out when automatic transmission system turns round from system.In another embodiment, this equipment comprises a flow regulator in reflow pipe or sewer pipe, this device comprises a flow control valve at least, in other embodiments, this equipment is also in order to clear up the oil-fired system of automobile, this equipment has a valve arrangement at that time, and this device imports oil tank with liquid from the refluxing opening oneself selectively.

One with inner clean and change in the automatic transmission system have with the corresponding method step of old transmission fluid, equipment one is in order to hold in the replacing automatic transmission system oil tank with the new transmission fluid of old transmission fluid; When automatic transmission system turns round, new transmission fluid is extracted out the pipeline of flow through a supplying pipe and a guiding automatic transmission system from oil tank; When turning round, automatic transmission system reclaims with old transmission fluid in along a reflow pipe from automatic transmission system.In another embodiment, this method may comprise uses old transmission fluid to flow into a sewer pipe so that handle from reflow pipe selectively, or regulates in reflow pipe or the sewer pipe step with the flow of old transmission fluid.In also having an embodiment, this method comprises: linking a by-pass between first valve arrangement of supplying pipe and second valve arrangement at reflow pipe; Selectively by using first valve arrangement or liquid being imported automatic transmission system from bypass or from pump, selectively by use second valve arrangement with liquid from automatic transmission system or import bypass tube or lead the sewer pipe.

In some other embodiment, the equipment that is used for automatic transmission system and oil-fired system liquid changing and inner cleaning comprises: first oil tank that is used to store first portion's liquid of clearing up automatic transmission system; Be used to store second oil tank of the second portion liquid of clearing up oil-fired system; Article one, one links to each other with pump, the delivery pipe that the other end can link to each other with first or second oil tank, and this pipe is with in the liquid input system; Article one, from the supplying pipe of pump guiding delivery outlet, this delivery outlet is applicable to the pipeline of a guidance system and links to each other; , a reflow pipe that links to each other with first inlet opening with second oil tank, this reflow pipe is applicable to a pipeline that stretches out from oil-fired system and links to each other; Article one, stretch out from second inlet opening, lead one in order to handle the sewer pipe that flows out waste liquid from automatic transmission system, this pipe is applicable to one and links to each other from the extended pipeline of automatic transmission system; And one one bypass tube that end links to each other with supplying pipe or delivery outlet, the other end of this bypass tube links to each other with a valve arrangement that is positioned at sewer pipe, the other or importing waste liquid point of liquid that this valve arrangement will flow out from second inlet opening selectively or importing bypass.In this embodiment's remodeling, the function of first, second inlet opening is realized by an independent inlet opening.

Fig. 1 is the skeleton diagram of equipment constructed in accordance, particularly represents a kind of linking method of the major part of being recommended;

Fig. 2 is the interior bonds of a machine assembly of the present invention, the schematic diagram of the simplification of part and function;

Fig. 3 is the schematic diagram of a machine assembly of the present invention, in order to show the flow circuits of liquid when machine assembly maintains automatic transmission system by filtration/cleaning way.

Fig. 4 is the schematic diagram of a machine assembly of the present invention, in order to show the flow circuits when machine assembly liquid when changing/refilling mode automatic transmission system is maintained.

Fig. 4 A has deleted the oil-fired system cleaning performance among one the present invention, with the schematic diagram of the similar machine assembly of machine assembly among Fig. 4.

Fig. 5 is the schematic diagram of the system among a present invention, particularly represents contact between the fuel oil delivery system of machine assembly, process control equipment, power supply and internal-combustion engine and the linking method of being recommended.

Fig. 6 is the schematic diagram of a machine assembly of the present invention, in order to show the flow circuits of liquid when machine assembly maintains internal-combustion engine by the oil-fired system cleaning way.

Fig. 7 is one according to other concrete device fabrication machine assembly principle of the present invention, is easy to clean at this equipment inner machine assembly, and allows it to carry out quick between automatic transmission system and oil-fired system maintenance and be easy to conversion.

Fig. 8 be one with the schematic diagram of the similar equipment of Fig. 7 inner machine assembly, in this equipment, be equipped with in order to link the independently inlet opening of automatic transmission system and internal combustion engine oil-fired system.

Please at length consult all accompanying drawings, in Fig. 1, shown a most preferred embodiment that is used for automatic transmission system fluid exchange and built-in system cleaning of the present invention.This equipment is designed to be contained in one movably on the wheelbarrow, and can be placed in automatic transmission system to be cleaned near.This equipment comprises a machine assembly 10, a process control equipment 13 and links lead and fluid pipeline.

Machine assembly 10 links to each other with the shell of pipeline 18 with automatic transmission system 14 through the delivery outlet 16 of machine assembly.Machine assembly 10 also links to each other with the transmission system cooler 20 of outside with pipeline 24 through the inlet opening 22 of machine assembly.

Outside transmission system cooler 20 generally includes the transmission liquid tubule road that a cover has the good heat conductive ability.The hot transmission liquid that outside transmission system cooler 20 flows out in coming automatic transmission system 14 and center between the cooling medium of transmission fluid tubule and carry out heat exchange.The common heat exchange medium that uses for cooling unit 20 design is circulating liquid or flow air normally.Under the situation that adopts circulating liquid, cooler 20 is immersed in the liquid fully, promptly is immersed in the radiator of Motor Vehicle.Adopting under the situation of air, make usually air stream through the outside of the transmission fluid tubule of cooler 20 so that exchange rate is increased to maximum.

Cooler 20 links to each other with the shell of automatic transmission system 14 by pipeline 26.As shown in Figure 1, Re transmission fluid flows out automatic transmission system 14 and flows into cooler 20 by inlet opening 30 by output outlet 28.Associated, cold transmission fluid flows out cooler 20 and flows into machine assembly 10 by machine assembly inlet opening 22 by delivery outlet 32.Transmission fluid flows out machine assembly 10 by machine assembly delivery outlet 16 then, and flows into automatic transmission system 14 by inlet opening 34.

The method that connects the transmission system cooler 20 of machine assembly 10, automatic transmission system 14 and outside shown in Fig. 1 is more praised highly than other layout, be because the dirt that cleans out from automatic transmission system 14 and outside transmission system cooler 20 can be by a filtrating equipment elimination of machine assembly 10 before flowing back to automatic transmission system 14, also will be before flowing to machine assembly 10 cool off by the transmission system cooler 20 of outside because flow out the transmission fluid of the heat of automatic transmission system 14.But in many cases, do not travel or well do not work such as automobile, and whole cleaning, emptying is finished in one hour when refilling operation, and the heat that is produced can not merit attention.

Consult Fig. 5 now, under the situation that a fuel oil delivery system that recommended and internal-combustion engine is connected, show machine assembly 10, process control equipment 12 and power supply source 36.Naturally, fuel oil supply system shown in Figure 5 will be understood that it only is the part of typical internal-combustion engine intermediate fuel oil system.Remaining oil-fired system parts such as suction valve, firing chamber, piston, spark plug etc., by (automobile) industry is known, but has been left in the basket at this for simplicity.These parts will thoroughly be cleaned in normal combustion process, therefore need machine is being left during oil-fired system cleaning operation of the present invention.

Shown fuel oil supply system partly comprises a fuel tank 38, an oil pump 40, an oil purifier 42, a fuel distribution hurdle 44, some oil nozzles 46, an oil pressure regulator 48, a fuel supply pipe 50 (this oil circuit is from fuel tank 38 guiding oil pressure regulators 48) and a return line 52 (this oil circuit flows back to fuel tank 38 from oil pressure regulator 48).But, in many oil-fired systems, may lack in these parts several.Give an example, the fuel system of a carbonization (carbureted) is provided with oil pressure regulator 48 and oil nozzle 46.The system of a carbonization has a carburetor arrangement to replace oil nozzle 46, and does not have return line 52 probably.

On the other hand, the diesel oil oil-fired system does not have oil pressure regulator 45, and is provided with an additional fuel oil injectionpump.Therefore, between the fuel oil supply system of device of the present invention and internal-combustion engine, the connecting means of Fig. 5 only is used for representing the common layout and the liquid flow direction of parts.Substantially, if motor is started, fuel oil will be drawn into fuel supply pipe 50 and be sent to fuel distribution hurdle 44 through oil purifier 42 from fuel tank 38 by oil pump 40.Then, inject the internal-combustion engine of burning through oil injecting nozzle.Unnecessary fuel oil then turns back to fuel tank 38 by return line 50.Oil pressure regulator 48 keeps oil pressure constant because of making unnecessary fuel oil through return line 50

Delivery outlet 16 on the machine assembly 10 and inlet opening 22 be by transmission fluid pipe 58 and 60, respectively with the tie point 56 of tie point 54 that is positioned at fuel oil output tube 50 and return tube 52 on link to each other with fuel oil supply system.As possible, the tie point 54 preferable positions of fuel oil output tube 50 are to be positioned at after the oil purifier 42 and before the fuel distribution hurdle 44.Can walk around oil purifier 42 like this, to prevent to wash or to dissolve dirt in the oil purifier 42, the washing agent that these dirts just can not prepared is specially brought other parts of oil-fired system into.Therefore, the efficacy of a drug of cleaning solvent can be not diluted yet, such as, in the oil purifier 42 of diesel oil oil-fired system a large amount of fuel oils is arranged sometimes.These fuel oils can not dilute rinse solvent at that rate.When machine assembly 10 after being connected on tie point 54 and 56, oil pump 40 or lose effectiveness, perhaps the oil circuit 50 that originally disconnects is connected to produce an independently fuel circuit by piecing devices at tie point 54 main 56 simultaneously with 52, and this fuel circuit is walked around fuel distribution hurdle 44, oil nozzle 45 and oil pressure regulator 48.

In arrangement shown in Figure 4, machine assembly 10 has replaced fuel tank 38, oil pump 40 and the oil purifier 42 of fuel oil supply system effectively.For any oil-fired system of not utilizing return tube, such as the oil-fired system of most carbonizations, machine assembly 10 only before carburetor arrangement, links to each other with oil-fired system on the tie point 54 of fuel oil supply system, and does not use the part relevant with return tube 52.The output hydraulic pressure of above-mentioned arrangement and machine assembly 10 and Flow-rate adjustment ability make equipment operation reproducible any kind of internal-combustion engine, such as the flow of the oil-fired system pressure of any kind required in gasoline, diesel oil or the methanol engine.And equipment of the present invention and method are designed in order to duplicate the normal operating condition of oil-fired system.Therefore, can thoroughly be washed off by such cleaning method that equipment of the present invention provides, even the most difficult dirt that touches, combustion by-products and fuel oil sediments are as long as they have fully contacted with the mixed solution that cleans the appearance agent with fuel oil.

With reference to figure 1 and Fig. 5, process control equipment 12 provides electric power by power supply source 36, makes microprocessor process control timer, process selected cell, pump, valve, switch and inductor energising, and realize all monitoring and control function.Process control equipment 12 includes a process control timer, some control switchs and indicator, and the latter comprises relevant manual valve on mechanical compression detector, flowmeter and or this assembly relevant with machine assembly 10.Process control equipment 12 also comprises and is used for the logical circuit that automated procedure is selected, such as process selected cell 62, be used to control and the function and the state of supervisory device.The electronic signal of process control equipment 12 is connected the interconnected node 64 that is illustrated as machine assembly 10 energy supplies and monitoring with power.Power supply source 36 can be a DC electrical source, such as the battery by machine assembly 10 employed Motor Vehicle.

Now consult Fig. 1 again, the fundamental function that is applied to the machine assembly 10 of automatic transmission system cleaning is: transmission fluid was monitored and regulated to (1) suction transmission fluid (2) filtration and permission perusal transmission fluid and the dirt (3) that leaches pressure and flow (4) provide new transmission fluid (5) to reclaim the suitably transmission fluid of the dirt of processing of work from the transmission system cooler 20 of automatic transmission system 14 and outside.

As shown in Figure 3, particularly when passing by filtration/cleaning way fortune, equipment of the present invention is monitored the normal operational situation of automatic transmission system under the situation of engine running and gear shift.The hydraulic pressure and the flow velocity of transmission fluids in machine assembly 10 sounding pipes 24 and 18, allow the situation of perusal transmission fluid simultaneously and check filter in the filter 68 the quantity of dirt.These data are in order to estimate the cleaning situation of whole automatic transmission system, the integral body of part and indivedual operational situation in the identification automatic transmission system 14, and the validity of judgement cleaning operation.Using these data, whether need take further diagnosis, maintenance or cleaning operation if making it possible to decision.

As shown in Figure 4, when by change/when the mode of refilling is operated, adjustable complete machine device assembly 10 makes under suitable pressure and flow velocity new transmission fluid is supplied with automatic transmission system 14 and outside transmission system cooler 20, mentions when just operating as filtration/cleaning way.Be to supply with fluid, can adjust machine assembly in advance by pressure and flow velocity that the automatic transmission system MANUFACTURER describes in detail, typically 30 to 45 gallons/per hour, pressure is transferred to 20 to 50psi (20-50 pounds/inch ²) surpass the hydraulic pressure of MANUFACTURER appointment and flow velocity and can make system pressure too high and cause the damage of automatic transmission system 14.Hydraulic pressure and underfed are owing to can damage automatic transmission system 14 equally to the lack of lubrication of part.And cause the wearing and tearing of automatic transmission system 14 and overheated thus, under such mode of operation, machine assembly 10 also reclaims dirty transmission fluids in automatic transmission system 14 and outside transmission system cooler 20, to carry out suitable storage and/or processing.When being used for some specific automatic transmission system, machine assembly 10 answers the flow of control flows to the transmission fluid of using of process points, can be faster otherwise extract transmission fluid out than injecting.In these cases, the liquid that flows out transmission system is preferably controlled by flow control valve 85.

Consult Fig. 5 and 6, the fundamental function that is applied to the machine assembly 10 of oil-fired system flushing is: (1) suction fuel oil; (2) filter and allow liquid in the perusal oil-fired system and filter dirt; (3) pressure and the flow of liquid in measurement and the adjusting oil-fired system; (4) supply with and reclaim the cleaning solvent mixed solution by pipeline 58 and 60.

On the other hand, when operating by the oil-fired system cleaning way, hydraulic pressure and flow velocity in machine assembly 10 monitoring pipelines 58 and the fuel distribution hurdle 44.Simultaneously, can be permitted liquid situations in the visual inspection transparent filter 66 and filter dirt.This data is in order to estimate the clean degree of whole oil-fired system, whole and individual other operational circumstances of part in the identification oil-fired system, and the significant degree of judgement cleaning operation.Produce with these sacrifical grain in ancient times, can judge whether to need to connect to add further diagnosis, maintenance or cleaning operation.

Fig. 2 represents one first oil tank 68, and this oil tank is that new transmission fluid is stored and supplied with in automatic transmission system fluid exchange and built-in system cleaning.First oil tank 68 is also in order to store and to supply with the mixed solution of oil-fired system cleaning operation with fuel oil and cleaning solvent.This oil tank can be equipped with a level gauge instrument (not showing), a lid in order to hand oiling (not showing) and a low level sensor and the conversion regulator 70 that liquid level activated that presets in oil tank 68.In the automatic transmission system cleaning operation, inductor and conversion regulator 70 make process selected cell 62 that replacing/the refill mode of mode of operation from Fig. 4 of machine assembly 10 is converted to filtration/cleaning way among Fig. 3.Low level sensor and conversion regulator 70 not acting in the oil-fired system cleaning way.

Second oil tank 72 be one in order to hold the simple basin of waste liquid, that is to say in order to be contained in from machine assembly 10, flow out during automatic transmission system is cleaned use the old transmission fluid and the mixed solution of washing agent.

Fig. 2 is in the machine assembly 10 and constitutes the rough schematic view of the oil circuit of machine assembly 10.In this figure, not with some pressure and flow inductor and indicator, and their electronic sensor point shows.In order also to have omitted operating valve and necessary terminal of motor and electronic monitoring circuit in simple natural pond.

First oil tank 68 communicates with inlet opening 22 along loop stream pipe 74, communicates with delivery outlet 16 along delivery pipe 75 and supplying pipe 76.The liquid pipeline 74,75 and 76 of flowing through under the effect of big capacity liquid pump 77, this pump is placed between delivery pipe 75 and the supplying pipe 76, can produce height to 130 pounds/inch under the situation more than flow 80 gallons per hours ²Pressure.Transparent filter 66 is positioned at reflow pipe 74, the second filters 78 and is contained in the delivery pipe 75, is used for leaching from circulating liquid dirt.

Also have combined valve 80A, 80B, 80C and 80D in the equipment, and be provided with the bypass tube 82 that valve 80 pipes from the supplying pipe 76 extend to the 80B on the reflow pipe 74, come the flow of controlling liquid selectively.Valve 80C is positioned on the reflow pipe 74, communicates with second oil tank 72 by a discharge opeing or " waste liquid " pipe 84.

Flow control valve 85 should be contained on the liquid-discharging tube 84, so that control is from the flow of the old liquid of the usefulness of automatic transmission system outflow when liquid changing.Although this purpose can be realized by flow regulator or pressure regulator, but the present invention is comprising this two kinds of devices again, but useful here normally flow control valve, this is because the adjusting of the liquid that flows out from transmission system is finished by such device entirely.Not every automatic transmission system all needs this function, but in the special case that input pipeline transmission system is relatively limited in that the liquid pump of transmission system is powerful relatively, this function is crucial.At that time, the liquid of being extracted out in the transmission system by internal pump may come soon than the liquid of being introduced by assembly 10.When not needing Flow-rate adjustment, valve 85 complete openings allow with the speed outflow transmission system of old transmission fluid by itself.

The oil of machine assembly 10 people that jumps up some other part is housed also, in order to judging its operational situation, and provides the diagnostic analysis data the user's that does to clear up equipment.These parts comprise one or more flowmeters 86, safety check 88 and the hydraulic pressure amount meter 90 that communicates with valve 80D on the supplying pipe 76, and respectively with reflow pipe 74, supplying pipe 76 intersects reduction valve 92 and the flow control valve 94 that links to each other.

Below will describe the basic oil circuit and the operation of machine assembly 10 in detail.

See also Fig. 3, it illustrates the machine assembly 10 that is in automatic transmission system filtration/cleaning state, cleaning solvent and 22 flow into machine assemblys 10 from pipeline 24 (Fig. 1) through the inlet opening with the mixed solution of old transmission fluid, and the transparent filter 66 of flowing through.Preferably the combination brake switch and proporting 80D of three-way valve imports combination brake switch and proporting 80A with the transmission fluid that flows into through bypass tube 82, and transmission fluid is flowed through as the combination brake switch and proporting 80D of bypass valve then, and flows out machine assembly 10 flow ipes 18 (Fig. 1) through delivery outlet 16.Hydraulic metering instrument 90 provides the feedback signal in order to the output hydraulic pressure of monitoring machine assembly 10.Composition 80D can be used for making liquid then flow to flowmeter 86, so that diagnostic analysis.Safety check 88 guarantees that the liquid of front flows to delivery outlet 16 from flowmeter 86.

In the filtration/cleaning way of the automatic transmission system of Fig. 3 maintenance, process alternative pack 62 makes liquid pump 77 not work selectively, to preserve electric energy and to prolong life-span of liquid pump 77.Therefore, in this mode of operation, machine assembly 10 is basically as with old transmission fluid and cleaning solvent one runner easily.But, transparent filter 66 and diagnosis unit such as the safety check 88 of hydraulic metering instrument 90, combination brake switch and proporting 80D, flowmeter 86 and machine assembly 10, can be used for leaching in the transmission fluid dirt and realize diagnostic function.These functions comprise measures hydraulic pressure and flow velocity in the assembly, the state of detecting liquid and identification filter dirt.When for after the predefined time of filtration/flushing dose mode expired, process alternative pack 62 is transformed into the replacing of Fig. 4/refill mode with machine assembly 10.For these figure, transmission fluid is seldom along path flow shown in the dotted line.

Consult Fig. 4, it is illustrated in automatic transmission system and changes/refill the machine assembly 10 under the mode, liquid pump 77 is extracted new transmission fluid out and is flowed along delivery pipe 75 from first oil tank 68.Flow through filter 78 and flow to supplying pipe 76 of this transmission fluid.The hydraulic pressure amount meter 96 that communicates with the delivery pipe 75 that is positioned at pump 77 suctions one side provides the hydraulic pressure strength signal, in order to perceive the congestion situations of second filter 78.Liquid pump 77 is pumps of a kind of jumbo magnetic couplings type, and required hydraulic pressure and flow velocity can be provided.Transmission fluid flows to delivery outlet 16 and pipeline 18 (chart 1) from pump flow through combination brake switch and proporting 80A and 80D.Between pump 77 and bypass tube 82, two parallel pipelines provide exporting the adjusting of hydraulic pressure and flow velocity by flow control valve 94, provide superpressure control by reduction valve 92.These two valves make unnecessary transmission fluid flow to the reflow pipe that is positioned at combination brake switch and proporting 80C downstream, make it flow back to first oil tank 68.Simultaneously, the old transmission fluid of usefulness that flows out from automatic transmission system flows into machine assembly 10 along reflow pipe 74, and is imported into second store oil (waste liquid) jar 72 through liquid-discharging tube 84.That is as above mentioned is such, in case need, the transmission fluid flow that flows to oil tank 72 can be regulated by modulating valve 85.

When changing/refilling the operation beginning, device operator can be adjusted hydraulic pressure and flow velocity through the new transmission fluid of delivery outlet 16 and pipeline 18 (Fig. 1) supply transmission system by making fluid diversion flowmeter 86 and adjusting flow control valve 94.This hydraulic pressure and flow velocity should closely match with observed hydraulic pressure and flow velocity during filtration/cleaning way.Perhaps hydraulic pressure and flow velocity are adjusted in the explanation by the transmission system MANUFACTURER in advance before cleaning operation begins.Reduction valve 92 provides an additional method to come to set maximum trouble free service for machine assembly 10 and the automatic transmission system of just being maintained and presses.This can preestablish in manufactory or set by device operator is on-the-spot.

When new transmission fluid when delivery outlet 16 is supplied with automatic transmission systems, just force mixed solution with old transmission fluid and cleaning solvent along pipeline 24 outflow automatic transmission systems (Fig. 1).This mixed solution 22 flows into machine assemblys 10 and through transparent filter 66 and combination brake switch and proporting 80D combination of flow valve 80C through the inlet opening.Then for suitable storage with handle and to import second oil tank 72 with old transmission fluid by combination brake switch and proporting 80C.Continuous running under the mode is being changed/refilled to equipment by this way, unless (1), the device operator manual-lock it; Or (2) process control equipment 12 stops it.

When the operator found that by transparent filter 66 new transmission fluid has replaced mixed solution with old transmission fluid and cleaning solvent fully, he can the manual control termination change/refill mode.The change in color of liquid has shown this change in the transparent filter 66, and color is that black brown or kermesinus become the new shiny red that transmission fluid had.

If process control timer (not showing) stops operating, or low level sensor activates with the transmission fluid that conversion regulator 70 is lower than predetermined liquid level in first oil tank 68, and process control equipment 12 stops changing/refilling mode automatically.Under latter event, remind the operator by special alert in the process control equipment 12 and beacon optical indicator.Under any circumstance, the replacing of process control equipment 12 termination machine assemblies 10/refill mode.Whenever change/when the mode of refilling is terminated,, get back to of the infringement of filtration/cleaning way immediately to prevent from automatic transmission system to be caused because of the transmission fluid deficiency such as outage, machine assembly 10 no matter be wittingly or unexpectedly.

First oil tank, 68 interior low level sensors make device operator can make process automation with the effect of changing regulator 70 and reduce the needs to supervising when cleaning process begins thus.The process of this automation is elaborated below.

Although when automatic transmission system and fuel oil supply system are all cleared up, machine assembly 10 among Fig. 2-4 is a kind of devices that possess better structure in the device of the present invention, but in the time must only using automatic transmission system, machine assembly 10 can be taked a kind of simpler structure.The machine assembly of making separately is drawn among Fig. 4 A for this purpose, is distinguished with numeral 10.Machine assembly 10 ' through delivery outlet 16 ' and inlet opening 22 ' communicate with automatic transmission system, and output and inlet opening may be identical with the common input and output mouth of describing among Fig. 2-4, and assembly 10 ' also have holds first oil tank 68 of new transmission fluid ' with in order to second oil tank 72 of recovery with the automatic transmission fluid of old or " scrapping ".A low level sensor of first oil tank 68 ' also have and the conversion regulator 70 ' pump 77 similar to conversion regulator 70 among Fig. 2-4 ' along delivery pipe 76 ' with new transmission fluid be from the 68 ' sucking-off of first oil tank, and through combination brake switch and proporting 80A ' and supplying pipe 76 ' send into delivery outlet 16 '.One modulating valve 94 ' being installed with pump 77 ' parallel mode, with control along supplying pipe 76 ' delivery pressure, an and piezometer 90 ' with supplying pipe 76 ' link to each other.

The liquid that flows out from automatic transmission system (do not have show) through refluxing opening 22 ' inflow machine assembly 10 ', liquid flow to reflow pipe 74 ' in combination brake switch and proporting 80B ' before from refluxing opening 22 ' flow through transparent filter and/or spectrometer 66 '.In the replacing of machine assembly 10/refill in the mode, the old transmission fluid of combination brake switch and proporting 80B ' use from reflow pipe 74 ' inflow liquid-discharging tube 84 '.As the liquid-discharging tube 84 of machine assembly 10, liquid-discharging tube 84 ' on have a flow control valve 85 ', in order to control discharge in some cases with old transmission fluid and end at second oil tank 72 ' in.In filtration/cleaning way, combination brake switch and proporting 80B ' and 80A ' then make along the old transmission fluid of usefulness of reflow pipe 74 ' flow turn to along supplying pipe 76 ' flow to bypass tube 82 ', and flow back to automatic transmission system.

The operation of machine assembly 10 ' is the same with the operation of the machine assembly of the Fig. 2 to 4 that uses in automatic transmission system 10.But, as noted above such, machine assembly 10 ' only is used for the maintaining to automatic transmission system, does not have the dual functions of machine assembly 10.

Now consult the flow chart of Fig. 6, it illustrates the machine assembly 10 in the oil-fired system cleaning way, and the mixed solution of fuel oil and cleaning solvent is extracted out from first oil tank 68 by liquid pump 77.This mixed solution second filter 78 on the delivery pipe 75 of flowing through, the hydraulic pressure amount meter 96 that is positioned at pump 77 suctions one side provides the hydraulic pressures signal to detect the congestion situations of second filter 78.Liquid pump 77 is jumbo magnetic couplings type pumps, can produce required high speed and flow velocity.Transmission fluid flows out from pump, flows into supplying mouth 16 and pipeline 58 (Fig. 5) through combination brake switch and proporting 80A and 80D.Between liquid pump 77 and bypass tube 82, two parallel pipelines provide output hydraulic pressure and flow velocity to regulate by flow control valve 94, provide superpressure to regulate through reduction valve 92.These valves make unnecessary transmission fluid inflow be positioned at the reflow pipe in combination brake switch and proporting 80C downstream, and make transmission fluid flow back to first oil tank 68.

When the oil-fired system cleaning operation began, device operator can be adjusted by machine assembly 10 and be supplied with, and flowed into the fuel oil of supplying pipes 58 and the hydraulic pressure and the flow velocity of washing agent mixed solution through delivery outlet 16.If engine fuel oil system has outside fuel oil fluid pressure governor 48 (chart 5), the operator should be by adjusting flow control valve 94, by using combination brake switch and proporting 80D to make the transmission fluid flowmeter 86 of flowing through, will export the transmission fluid flow adjust near 20～25 add wheel/hour.The required hydraulic pressure of oil-fired system that is subjected to maintaining is regulated (4～100 pounds/inch normally by oil pressure regulator 48 ²), oil pressure is presented on the hydraulic pressure amount meter 90.

If after the startup of oil-fired system cleaning way, oil nozzle 46 sprays into combustion with fuel oil and waters chamber (Fig. 5).Low 3～5 pounds/inch when the hydraulic pressure reading answers ratio engine to close at that time ², the reading of piezometer instrument amount 90 can be used to and making comparisons that MANUFACTURER is advised.Any unusual reading that oil-fired system exists after cleaning and finishing shows the remaining parts of oil-fired system, such as the oil pressure regulator 48 or oil nozzle 46 defectiveness such as (Fig. 5) of outside.But because about 90% failure of fuel system is by the fuel oil sediments, dirt in fuel oil additive and the combustion by-product causes, the said oil-fired system cleaning operation in front makes oil-fired system return to their normal working state in most cases.

In occasion very once in a while, it is low to exist the oil pressure regulator of defective that the oil pressure of system was become, so that cause to start and finish once completely oil-fired system and clean.Nozzle pintle unfortunately, suction valve, spark plug and firing chamber only are in the normal operation mode at engine and could be thoroughly cleaned.In this case, the operator can be increased to output flow 30～60 gallons per hours, causes flow restriction by oil pressure regulator 48.Flow restriction further improves on oil pressure regulator, and back pressure is increased is enough to make motor (internal-combustion engine) to start.

In the oil-fired system that does not have oil pressure regulator 48, the operator needn't adjust when cleaning operation begins from the flow velocity of the transmission fluid of machine assembly 10 outflows.And replace by observing the reading of hydraulic metering instrument 90, adjust to the position of manufacturer recommendation with exporting hydraulic pressure, adjust flow control valve 94 and reduce machine assembly 10 and maintained too high hydraulic pressure in the fuel oil.In this example, flow joint valve 94 is got back to first oil tank 68 by allowing unnecessary transmission fluid backflow, and plays the same effect of first hydraulic control valve.

Need to export accurately hydraulic pressure and flow velocity during cleaning operation under few situation, flowmeter 86 should be driven and second flow control valve (being provided with demonstration) should be contained in the pipeline 68.By adjusting second flow control valve and the modulating valve 94 in the machine assembly 10, can obtain accurate output flow and hydraulic pressure at an easy rate.Reduction valve 92 for machine assembly 10 and user's oil-fired system of being cleaned provide one extra in order to the mechanical device that maximum safety operation is pressed to be set.This operation is pressed and can be set in manufactory or be set then and there by device operator.

22 flow into machine assemblys 10 from pipeline 60 through the inlet opening from the unnecessary fuel oil that flows out in the oil-fired system of just using and cleaning solvent mixed solution, and flow into combination brake switch and proporting 60B through transparent filter 66.This liquid is imported into combination brake switch and proporting 80C and flows back to first oil tank 68 to clean continuously subsequently.Certainly, the fluid loop that more than describes in detail is unfavorable in the system of return tube of no use.The operation of oil-fired system cleaning way has only when the process control timer in operator's manual-lock equipment or the process control equipment 12 regularly turn-offs equipment, just can stop.In the oil-fired system cleaning way, low level sensor in first oil tank 68 and conversion regulator 70 are inoperative.

For an independent machine assembly 10 is carried out different application, such as automatic transmission system maintenance and the maintenance of fuel of internal combustion engine system, all raffinates be cleaned and be removed to device operator should to machine assembly 10 in a closed circulation before each conversion application mode.This such as gasoline and diesel engine, also is very necessary to the burning different fuel when using machine assembly 10 to maintain.At last, size of apparatus of the present invention and capacity are by the application area decision of its plan.That can make movably and be easy to move according to certain size or can be jumbo fixed equipment and maintenance is provided and makes certain size.

Two interchangeable devices of the present invention have been shown in Fig. 7 and 8, and they are designed to and can be reliably washed raffinate.For for simplicity, show these devices of the process control circuit of the part 12 that is not similar to Fig. 1 to 6, but, even so, it will be understood that in many cases to be provided with similar circuit.

Consult Fig. 7 earlier, machine assembly 110 has the independently oil tank of the liquid of some stores processor automatic transmission systems and oil-fired system, and all automatically drives in various modes of operation.Specifically, machine assembly 110 has first oil tank 112 of first kind of liquid that a storage " processing " automatic transmission system uses and a storage " processing " oil-fired system second oil tank 114 with second kind of liquid, and oil tank 112 also has a low level sensor and is similar to above-mentioned regulator 70,70 ' conversion regulator 115.The contents of oil tank are extracted out along delivery pipe 118 selectively by a big volumetric pump 116, sending into the delivery outlet 112 that links to each other with automatic transmission system or oil-fired system (not shown) through supplying pipe 120, is to be made by the combination brake switch and proporting on the delivery pipe 118 124 in the selection between oil tank 112 and 114.Combination brake switch and proporting 124 is drivable, extracts first automatic transmission system fluid through a suitable filter 128 from first oil tank 112, or through a filter 128 oil-fired system liquid is extracted out from the second oil tank ground 14.In whole process, the hydraulic pressure in the delivery pipe 118 is by 180 monitoring of hydraulic metering instrument.From flow rate of liquid and the hydraulic pressure that pump 116 flows out, then controlled by flow control valve 133 and reduction valve 134.These two valves link to each other with pump is parallel.These valves can be regulated, and are used for controlling flow velocity and hydraulic pressure along supplying pipe 120, adapt with the needs that run well with automatic transmission system or oil-fired system and all machine assembly.Between the on-stream period of machine assembly 110, monitor these states by flowmeter on the supplying pipe 136 and hydraulic metering 138.Flowmeter 136 has a safety check 149 and link to each other parallel with the part of supplying pipe 120, the aggregate supply flow when making flow of liquid through flowmeter 136 in order to measure after valve 142 starts.

Machine assembly 110 from just processed automatic transmission system or oil-fired system through the inlet opening 144 withdrawal liquid, and flow into reflow pipe 146 or sewer pipe 148 from the inlet opening.Be provided with an alternative combination reflux valve 150 of optionally handling in the reflow pipe 146, prevent that liquid from flowing along reflow pipe 146, make liquid flow back to second oil tank 114, or make liquid flow back to delivery outlet 122 through bypass tube 152 and safety check 154, a transparent filter or liquid spectrometer (not shown) are housed, so that detect degree as liquid sump oil in the pipeline of process control effect in the pipeline 28 of refluxing opening 114 upstreams.On the other hand, sewer pipe 148 contains a waist valve 158,144 flows to three used liquid container 160 along sewer pipe 148 from the inlet opening in order to make liquid selectively.In a most preferred embodiment, flow control valve 162 also is housed, in the sewer pipe 148 in order to regulate the flow that flows into used liquid container 160.This valve may be identical with the flow control valve 85 among Fig. 2.Therefore, flow out the mechanism of flowing of waste liquid in the system that flow control valve 162 provides a restriction maintaining, thereby prevent the low excessively situation of liquid level in the generation system.In a most preferred embodiment, a simple needle-valve can be used as waist valve 158 and flow control valve 162.

Machine assembly 110 is except " automatic transmission system is equipped discrete oil tank exception with oil-fired system and all worked in the 10 similar modes of the machine assembly among Fig. 1-6 in order to handle.This structure except the valve in each branch of assembly, also makes assembly can alternately be used for automatic transmission system cleaning and oil-fired system cleaning, and needn't cut off and distinguish all basins and circuit in the purging system.Although when machine assembly 110 was changed between automatic transmission system clearing function and oil-fired system function, some pipeline must be cleaned, cleaning sequence has simply been howed than machine assembly 10.

The structure of machine assembly 110 by delivery outlet 122 places or near termination bypass tube 152 eliminate on supplying pipe 120 needs to valve.In this configuration, the function of combination brake switch and proporting 80A is by safety check 154 in the machine assembly 10, and safety check 140 and diverter valve 142 are realized.

With it should be noted that first oil tank 112 and three wastes stream jars 160 is represented side by side during machine assembly 110 is connected, therefore can come the flow of the liquid of the transmission system (not have demonstration) of monitoring flow by liquid level in the perusal comparison basin through being cleaned.For the ease of the volume (such as each 4.5 gallons) of this relatively oil tank 112 and 160 and measure-alike, and they can be provided with transparent side plate.

Consult Fig. 8 now, machine assembly 210 is similar to machine assembly 110 to a great extent, but has one in order to reclaim second inlet opening with old transmission fluid in the automatic transmission system of being cleared up by maintenance.Machine assembly 210 have one through first inlet opening 21 of reflow pipe 146 guiding second oil tank 114 and one through second inlet opening 214 of sewer pipe 148 and a combination waist valve 216 guiding used liquid containers 160, rather than the single inlet opening that links to each other with a sewer pipe 148 with a reflow pipe 146.When reflow pipe directly when oil tank 114 is guided in first inlet opening 212, used liquid container 148 is just made up waist valve 216 and flow control valve 162 controls.Like that, combination waist valve 216 can make liquid flow into used liquid containers 160 from second inlet opening 216, or replaces and allow with old transmission fluid through bypass tube 152 and safety check 164 inflow delivery outlets 122.Therefore, combination waist valve 216 plays machine assembly 210 in the automatic transmission system cleaning process in filtration/cleaning way and replacing/the refill effect of changing between the mode.In filtration/cleaning way, flow into second inlet opening 214 with old transmission fluid, flow through transparent filter or spectrometer 156 and liquid is turned to along bypass tube 152 flow back to the automatic transmission system of cleaning by combination waist valve 216.Changing/refilling in the mode, the useless valve 216 of combination uses old transmission fluid to flow to used liquid container 160 to carry out final processing along sewer pipe 148.In this mode, adjustable metering valve 162 limits the flow of the old transmission fluid of the usefulness that flows to used liquid container 160.And the quantity that prevents liquid in the transmission system thus is lower than the required quantity of normal running.

The structure of machine assembly 210 is particularly suitable for automatic transmission system and oil-fired system are replaced maintenance (cleaning), and this is to separate fully because of reflow pipe and sewer pipe.When using assembly 10 through delivery pipe 118 with when the required liquid of supplying pipe 129 suctions is discharged the unnecessary liquid of assembly 210 in should a part, under situation about changing between automatic transmission system and the oil-fired system, these two pipelines all are essential.Above-mentioned these can with delivery outlet 122 with carry out before system to be cleaned links to each other.

In aforesaid fluid loop, it should be understood that all illustrative valves can be the manually-operable valves, the solenoid valve of electronic control, or hydraulic pressure or air-operated control valve.These valves can be controlled by process control equipment 12 or machine assembly 10.In addition, the structure of shown valve can be taked the form of independent combined valve, or some simple valves combine to realize described more sophisticated functions, and therefore, each valve preferably is described as one " valving " in the context of the present invention usually.

Utilize present device to use old transmission fluid instead with new transmission fluid, the best approach of the automatic transmission system of washing machine motor-car or other similar machine is presented below.Program A:

This procedural application is in the automatic transmission system of never cleaning through method of the present invention, or carries out 100% transmission fluid and change, and effect is satisfactory.

(a) as shown in Figure 1, indusion tube 24 and 18 is installed in successively on the automatic transmission system cleaning robot assembly (10,10 ', 110 or 210).

(b) shown in Fig. 1 same 3, under the engine running situation, pass through the operation automatic transmission system usually in indusion tube, set up stable liquid flow condition.This can be by engine running, wheel is slack or free in one embodiment rotating-wheel is finished.In latter instance, automobile can be placed on the ergometer, and this can make the wheel transmission or vehicle frame risen up to its driving wheel and break away from and the contacting of ground.

(c) shown in Figure 3 as Fig. 1, measure pressure and flow velocity that the liquid in indusion tube 24 and 18 flows.In the disclosed embodiment this on supply side be by pressure measuring set 90,90 ' and 138 and flowmeter 86 and 136 finished.On reflux side, can be in machine assembly or outside assembly similar measuring device be set in the pipeline 24 itself.

(d) at each gear (D, 0D, L1, L2, R, N etc.) shift, keep at least 2 minutes, allow and clean thoroughly.And from the transmission system cooler 20 of automatic transmission system 14 and outside, leach dirt.On whole gears of automatic transmission system, cleaned at least and filter 15 minutes.

(e), on the same gear, new transmission fluid is imported automatic transmission system to replace with old transmission fluid and washing agent mixed solution together with shown in Figure 4.During this step, mixed solution by second oil tank 72 among Fig. 8 and or Fig. 7,8 in used liquid container collect.

(f) when changing with old transmission fluid and cleaning liquor, the output pressure and the flow velocity of new transmission fluid are transferred to the described level of step (e).For the liquid that makes the turnover automatic transmission system equates, waste liquid ATF hydraulic pressure/flow control valve (85 or 162) is done necessary adjustment.

(g) repeating step (e) on all gears of transmission system.

(h) external transmission system cooler 20 is linked to each other again with automatic transmission system.

(i) inspection transmission fluid liquid level is also added liquid on demand.

(j) at machine assembly (10 of the present invention, 10 ', 110 or 210) front and back that link to each other with automatic transmission system 14 and outside transmission system cooler 20, a kind of cleaning solvent is injected into automatic transmission system, is used for peeling from the internal pipeline of whole automatic transmission system and cavity and dissolving any dirt.Simultaneously, the new transmission fluid of suitable quantity is stored in first oil tank 68 of Fig. 2 or Fig. 7,8 the oil tank 112.

Certainly, above-mentioned steps can be undertaken by a different order, perhaps ignores or changes some step.But, aforesaid complete cleaning operation is recommended because of it is most effective.Program B:

The not serious automatic transmission system of dirt in that this procedural application regularly cleans in the inventive method, the transmission system.Program described herein is thoroughly cleaned about 85% automatic transmission system and the old transmission fluid of 90% usefulness of more exchanging treaties.

(a) indusion tube 24 and 18 is installed in successively on the automatic transmission system cleaning assembly (10,10 ', 110 or 210) as shown in Figure 1.

(b) as shown in figs. 1 and 3, under the situation of internal combustion engine operation, in indusion tube, set up stable flow of fluid usually by the operation automatic transmission system, and test indusion tube 24 and 18 interior hydraulic pressure and flow velocitys.

(c) as shown in figs. 1 and 3,, at the same gear new transmission fluid is imported automatic transmission system as shown in Figure 4 and replace after at least 15 minutes in a certain gear cleaning and filtering with the old transmission fluid and the mixed solution of cleaning solvent.During this step, collect by second oil tank 72 among Fig. 2 or the used liquid container among Fig. 7,8 160 with the mixed solution of old transmission fluid and cleaning solvent.But begin changing step 1, the output pressure and the flow velocity of new transmission fluid is adjusted to the described level of step (b).This is by adjusting reduction valve 92 and flow control valve 94 among Fig. 2, or reduction valve 134 and flow control valve 132 are finished among Fig. 7,8.If required, can realize that the input output amount of liquid the relative automatic transmission system equates by adjusting waste liquid liquid level/flow control valve 85 (charts 2) or 162 (charts 7 and 8).

(d) the transmission system cooler 20 with the outside links to each other again with automatic transmission system 14.

(e) check the transmission fluid liquid level, and add additional liquid on demand.

(f) in thermomechanical components (10 of the present invention, 10 ', 110 or 210) front and back that link to each other with automatic transmission system 14 and outside transmission system cooler 20, a kind of cleaning solvent is injected into automatic transmission system, is used for peeling from the internal pipeline of whole automatic transmission system and cavity and dissolving any dirt.

(g) in machine assembly of the present invention and automatic transmission system 14 and outside transmission system cooler 20 front and back that link to each other, process alternative pack 62 of the present invention is set program.Allow lasting 15 to the 20 public clocks of filtrations/cleaning operating mode, the new transmission fluid that is intended for use in the transmission system of being maintained is stored in first oil tank 68 of Fig. 2 and Fig. 7,8 the oil tank 112.Accommodate in this oil tank a little more than the new transmission fluid that is pushed away the liquid total capacity of depositing by the transmission system MANUFACTURER subsequently.Adding enough new biography hydrodynamics so that low level sensor and conversion regulator 70 or 115 can not be activated.In this case, in case the operator has set up mutually the same input output pressure and the flow velocity that matches with automatic transmission system, till finishing to whole process, just needn't supervise and refill operation.When process finished, process selected cell 62 of the present invention was reminded the operator by a special alarm signal and low level sensor, and the conversion regulator 70 of first oil tank 68 is transformed into filtration/cleaning operating mode with the running of machine assembly 10.Therefore, after process finished, the operator had the enough time to stop this process and needn't emit the danger of damage automatic system.

Certainly, above-mentioned steps can be undertaken by a different order, or omits or change some step.But, aforesaid complete cleaning operation is subjected to pushing away because of it is most effective and deposits.

The most effective oil-fired system that is used with the present invention known to the claimant and transmission system cleaning solvent are cleared up 2000 companies by California power and are produced, and are that brand name is sold with power cleaning 2000.

This equipment of being recommended and method are better than existing equipment and the method part comprises: when changing with old biography liquid with new transmission fluid 100%, when cleaning whole automatic transmission system, when making automatic transmission system almost return to new state, exist a kind of potential high efficiency of time and labor aspect.Above-mentioned these when method dismounting whole system that need not machinery is changed fully and is thoroughly cleaned to carry out transmission fluid and otherwise is impossible realize.Other advantages comprise: (1) before, during and after the cleaning operating mode that is suitable for this equipment, the ability of the automatic transmission system operational situation of a dirt of diagnosis.(2) only replace other different types of complete cleaning equipment that the oil-fired system of dissimilar internal-combustion engines is cleared up as mentioned above with an equipment.(3) before, during and after the cleaning operating mode of using this equipment; The ability of the oil-fired system operational situation of a dirt of diagnosis.

In top explanation, can see significantly and utilize the most preferred embodiment of the present invention and the best approach to reach purpose of the present invention.Utilize the various corrections and the described using method of alternative embodiment, method, most preferred embodiment, will be conspicuous concerning the those of ordinary skill that those are skilled in technique in the description in front, certain appended claim, be not limited to embodiment described herein, and be applicable to all remodeling and the modification of scope and spirit according to the invention.

Claims (62)

1. One kind when automatic transmission system turns round, in order in automatic transmission system, to carry out inner clean and the equipment of transmission fluid replacing comprises: the oil tank of a liquid of using in order to the stores processor automatic transmission system; One delivery pipe that links to each other with pump, pump then is transmitted into described automatic transmission system with described transmission fluid; One supplying pipe from a delivery outlet of described pump importing, described delivery outlet are applicable to the pipeline of the described automatic transmission system of a guiding and link to each other; With a reflow pipe that leads a sewer pipe from an inlet opening, described inlet opening is applicable to the pipeline of deriving from described automatic transmission system and links to each other, described sewer pipe guiding, the position of when described automatic transmission system running the waste liquid of therefrom outflow being handled.
2. 2. equipment as claimed in claim 1 is characterized in that also comprising: be in the flow regulator on one of described reflow pipe and described sewer pipe.
3. 3. equipment as claimed in claim 2 is characterized in that described flow regulator comprises one or more flow control valves.
4. 4. equipment as claimed in claim 1 is characterized in that, one is connected first valving of described service and the bypass tube between second valving in the described reflow pipe; Described first valving imports described delivery outlet with liquid from described bypass tube or from described pump selectively; The liquid that described second valving will flow out from reflow pipe selectively or import above-mentioned bypass tube or import sewer pipe.
5. 5. equipment as claimed in claim 1 is characterized in that also comprising: one is applicable to the hydraulic metering instrument of hydraulic pressure in the test delivery pipe.
6. 6. equipment as claimed in claim 1 is characterized in that also comprising: filter on pipeline that is positioned at described reflow pipe or derives from described automatic transmission system, that a transparent outer cover is housed.
7. 7. equipment as claimed in claim 4 is characterized in that also comprising: a level sensor in described oil tank.
8. 8. described equipment as claimed in claim 7 is characterized in that also comprising: one very sensitive to described level sensor, in order to control said pump and valve, and monitors above-mentioned inner the cleaning and the transmission fluid process control equipment of the situation of exchange device more.
9. 9. equipment as claimed in claim 1 is characterized in that also comprising: in described supplying pipe, in order to regulate the hydraulic regulating device of the described system liquid hydraulic pressure of input.
10. 10. inner cleaning as claimed in claim 9 and transmission fluid be exchange device more, it is characterized in that described hydraulic regulating device is adjustable.
11. 11. equipment as claimed in claim 1 is characterized in that also comprising: the flow regulator of in above-mentioned supplying pipe, importing the said system flow in order to adjusting.
12. 12. inner cleaning as claimed in claim 11 and transmission fluid be exchange device more, it is characterized in that above-mentioned flow regulator is adjustable.
13. 13. one kind when automatic transmission system turns round, in order to carry out in automatic transmission system that inside is cleaned and transmission fluid exchange device more, comprising: an oil tank that is used for this automatic transmission system usefulness liquid of stores processor; One delivery pipe that links to each other with pump, pump then imports described automatic transmission system with above-mentioned transmission fluid; One supplying pipe from an inlet opening of described pump importing, described inlet opening are applicable to the pipeline of the described automatic transmission system of a guiding and link to each other; One reflow pipe that leads a sewer pipe from an inlet opening, described inlet opening is applicable to that a pipeline of deriving from described automatic transmission system links to each other, the position of when described sewer pipe is directed at described automatic transmission system running the waste liquid that therefrom flows out being handled; One be connected described from supplying pipe first valving and the bypass tube between second valving on the described reflow pipe; Described first valving imports above-mentioned delivery outlet with liquid or from described bypass tube or from described pump selectively; Described second valving will import described bypass tube selectively from the liquid that reflow pipe flows out or import sewer pipe.
14. 14. the inner equipment that cleans and change transmission fluid as claimed in claim 18 is characterized in that also comprising: or at above-mentioned reflow pipe or the flow regulator on sewer pipe.
15. 15. the inner equipment that cleans and change transmission fluid as claimed in claim 14, it is characterized in that also comprising: described flow regulator comprises one or more flow control valves.
16. 16. the inner equipment that cleans and change transmission fluid as claimed in claim 13 is characterized in that also comprising: a hydraulic pressure amount meter that is applicable to hydraulic pressure in the test delivery pipe.
17. 17. the inner equipment that cleans and change transmission fluid as claimed in claim 13 is characterized in that also comprising: on pipeline that is positioned at described reflow pipe or derives from described automatic transmission system, be contained in the filter in the transparent outer cover.
18. 18. the inner equipment that cleans and change transmission fluid as claimed in claim 13 is characterized in that also comprising: the level sensor in described oil tank.
19. 19. the inner equipment that cleans and change transmission fluid as claimed in claim 18, it is characterized in that also comprising: one very sensitive to described level sensor, in order to controlling described pump and valve, and monitor described inner the cleaning and the transmission fluid process control equipment of the situation of exchange device more.
20. 20. the inner equipment that cleans and change transmission fluid as claimed in claim 13 is characterized in that also comprising: in described supplying pipe, in order to regulate described system liquid hydraulic pressure of input and hydraulic regulating device.
21. 21. the inner equipment that cleans and change transmission fluid as claimed in claim 20 is characterized in that described hydraulic regulating device is adjustable.
22. 22. the inner equipment that cleans and change transmission fluid as claimed in claim 13 is characterized in that also comprising: the flow regulator that flows into the flow of described equipment in described supplying pipe in order to adjusting.
23. 23. the inner equipment that cleans and change transmission fluid as claimed in claim 22 is characterized in that described flow regulator is adjustable.
24. 24. one kind is cleaned and changes in order to inside, and the method with old transmission fluid comprises in the automatic transmission system: an oil tank in order to the new biography hydrodynamic used with old transmission fluid in the described automatic transmission system of memory change is provided, when automatic transmission system turns round, new transmission fluid is extracted out by oil tank, send into automatic transmission system, described new transmission fluid flow through a supplying pipe and one the guiding automatic transmission system pipeline; With when automatic transmission system turns round, from automatic transmission system, reclaim with old transmission fluid along a reflow pipe.
25. 25. the inner equipment that cleans and change transmission fluid as claimed in claim 24 is characterized in that also comprising that step has: when new transmission fluid is transfused to described automatic transmission system, and when therefrom reclaiming, change the gear of this system with old transmission fluid.
26. 26. the inner equipment that cleans and change transmission fluid as claimed in claim 24 is characterized in that also comprising that step has: make the old transmission fluid of described usefulness flow into a sewer pipe from reflow pipe selectively, handle thus.
27. 27. the inner equipment that cleans and change transmission fluid as claimed in claim 26 is characterized in that comprising that also step has: or regulate described reflow pipe or regulate the interior flow with old transmission fluid of sewer pipe.
28. 28. the inner equipment that cleans and change transmission fluid as claimed in claim 26 is characterized in that also comprising that step has, provide one in described supplying pipe the bypass tube between second valving in first valving and the described reflow pipe; By using first valving to make liquid selectively or flow out, and flow into automatic transmission system and by using second valving to make the liquid that from automatic transmission system, flows out selectively or flowing into described bypass tube or flow in the sewer pipe from described reflow pipe or from described pump.
29. 29. the inner equipment that cleans and change transmission fluid as claimed in claim 23 is characterized in that also comprising: after being recovered from automatic transmission system with old transmission fluid, filter this liquid.
30. 30. the inner equipment that cleans and change transmission fluid as claimed in claim 23 is characterized in that also comprising: detect the liquid level in the described oil tank, and control said pump and valve, as reaction to above-mentioned detected liquid level.
31. 31. the inner equipment that cleans and change transmission fluid as claimed in claim 26 is characterized in that also comprising: the hydraulic pressure of when automatic transmission system turn round, regulating the old transmission fluid of the usefulness of this system of input.
32. 32. the inner equipment that cleans and change transmission fluid as claimed in claim 26 is characterized in that also comprising: the flow of when automatic transmission system turn round, regulating the old transmission fluid of the usefulness of this system of input.
33. 33. a transmission fluid replacing and an inner cleaning equipment that is used for automatic transmission system and oil-fired system comprises: a storage said system is maintained the oil tank of two liquid, one usefulness that links to each other with pump is so that the delivery pipe that described liquid circulates in described system, one supplying pipe from a delivery outlet of said pump importing, described delivery outlet are applicable to the pipeline of the described system of a guiding and link to each other; One reflow pipe that links to each other with an inlet opening with described oil tank, described reflow pipe is applicable to a pipeline of deriving from described system and links to each other, one bypass tube that in described supplying pipe, links to each other between second valving in first valving and the described reflow pipe, the liquid that described first valving will or flow out from described bypass tube or in the described pump selectively imports described delivery outlet, and described second valving makes the liquid that flows out from described reflow pipe selectively or flows into described bypass tube or flow into the oil tank.
34. 34. the inner equipment that cleans and change transmission fluid as claimed in claim 33 is characterized in that also comprising: be applicable to that test is positioned at the supply liquid in pipe in described pump downstream and the hydraulic pressure amount meter and the flowmeter of flow.
35. 35. the inner equipment that cleans and change transmission fluid as claimed in claim 33 is characterized in that also comprising: a hydraulic pressure amount meter that is applicable to hydraulic pressure in the test delivery pipe.
36. 36. the inner equipment that cleans and change transmission fluid as claimed in claim 33, it is characterized in that also comprising: one is positioned at reflow pipe, selectively the fluid that will flow out from described reflow pipe or import above-mentioned oil tank or import the 3rd valving the sewer pipe.
37. 37. the inner equipment that cleans and change transmission fluid as claimed in claim 36 is characterized in that also comprising: or at above-mentioned reflow pipe or the flow regulator in sewer pipe.
38. 38. the inner equipment that cleans and change transmission fluid as claimed in claim 37 is characterized in that described flow regulator comprises one or more flow control valves.
39. 39. the inner equipment that cleans and change transmission fluid as claimed in claim 33, it is characterized in that also comprising: one includes the bypass tube of hydraulic regulating device, described controlling device imports back go into pipe with liquid from described supplying pipe in order to when the liquid hydraulic pressure that flows out is higher than predeterminated level from described pump.
40. 40. the inner equipment that cleans and change transmission fluid as claimed in claim 33 is characterized in that also comprising: the level sensor in described oil tank.
41. 41. rotation fluid exchange as claimed in claim 40 and inner cleaning equipment, it is characterized in that also comprising: one very sensitive to level sensor in the described oil tank, in order to controlling described pump and valve, and monitor described rotation fluid exchange and inner cleaning equipment situation internal procedure control gear.
42. 42. transmission fluid as claimed in claim 39 is changed and inner cleaning equipment, it is characterized in that described regulator is adjustable.
43. 43. the transmission fluid described in claim 36 is changed and inner cleaning equipment, it is characterized in that also comprising: a bypass tube between described supplying pipe and reflow pipe has the valve of a selective adjusting flow inside its.
44. 44. the transmission fluid described in claim 33 is changed and inner cleaning equipment, it is characterized in that also comprising a bypass tube between above-mentioned supplying pipe and reflow pipe, and the valve of a selective adjusting flow is arranged in its inside.
45. 45. one is used for that automatic transmission system and oil-fired system transmission fluid are changed and the inner equipment that cleans, it is characterized in that this equipment comprises: one in order to first oil basin of storage automatic transmission system maintenance with liquid; One in order to second oil tank of storage oil-fired system maintenance with liquid, and one links to each other with pump, and the other end alternately links to each other with first, second oil tank, in order to described liquid is imported the delivery pipe of described system; One supplying pipe from a delivery outlet of described pump importing, described delivery outlet is applicable to the pipeline of the described system of a guiding and links to each other, one reflow pipe that links to each other with an inlet opening with described second oil tank, this reflow pipe is applicable to a pipeline of deriving from above-mentioned oil-fired system or automatic transmission system and links to each other, and described valving is in order to make from the liquid of described inlet opening outflow selectively or to flow into described bypass tube or flow into second oil tank; One stretches out from described inlet opening, stretches into a waste liquid point, in order to the sewer pipe that the waste liquid that flows out from automatic transmission system is handled.
46. 46. the transmission fluid described in claim 45 is changed and inner cleaning equipment, it is characterized in that also comprising: second oil tank that communicates with above-mentioned sewer pipe at above-mentioned waste liquid point.
47. 47. transmission fluid as claimed in claim 46 is changed and inner cleaning equipment, it is characterized in that first oil tank is in the same place their liquid levels separately of comparison during in order to liquid in changing described automatic transmission system with the 3rd oil tank is adjacent.
48. 48. transmission fluid as claimed in claim 47 is changed and inner cleaning equipment, it is characterized in that first oil tank and the 3rd oil tank are to have sticked together.
49. 49. transmission fluid as claimed in claim 45 is changed and inner cleaning equipment, it is characterized in that also comprising: the flow regulator in the above-mentioned sewer pipe.
50. 50. transmission fluid as claimed in claim 49 is changed and inner cleaning equipment, it is characterized in that also comprising: above-mentioned flow regulator comprises a flow control valve at least.
51. 51. transmission fluid as claimed in claim 49 is changed and inner cleaning equipment, it is characterized in that also comprising: be applicable to the interior hydraulic pressure of supplying pipe in test said pump downstream and the hydraulic metering instrument and the flowmeter of flow velocity.
52. 52. transmission fluid as claimed in claim 49 is changed and inner cleaning equipment, it is characterized in that also comprising: a hydraulic pressure amount meter that is applicable to hydraulic pressure in the test delivery pipe.
53. 53. transmission fluid as claimed in claim 45 is changed and inner cleaning equipment, it is characterized in that also comprising: the flow regulator of in above-mentioned supplying pipe, regulating the flow of the liquid that flows to said system.
54. 54. transmission fluid as claimed in claim 45 is changed and inner cleaning equipment, it is characterized in that also comprising: at the level sensor of above-mentioned oil tank in one of them.
55. 55. transmission fluid as claimed in claim 45 is changed and inner cleaning equipment, it is characterized in that also comprising: one very sensitive to level sensor in the above-mentioned oil tank, in order to control said pump and valve, and monitor that above-mentioned transmission fluid is changed and the process control equipment of inner cleaning equipment situation.
56. 56. change and inner cleaning equipment at the described transmission fluid of claim 53, it is characterized in that described controlling device is adjustable.
57. 57. one is used for automatic transmission system and replacing of oil-fired system transmission fluid and the inner equipment that cleans, it is characterized in that this equipment comprises: one in order to first oil tank of storage automatic transmission system maintenance with liquid, a usefulness is held second oil tank of oil-fired system maintenance with liquid, one links to each other with pump, the other end alternately links to each other with first, second oil tank, in order to aforesaid liquid is imported the delivery pipe of said system; One supplying pipe from a delivery outlet of said pump importing, above-mentioned delivery outlet is applicable to the pipeline of a guiding said system and links to each other, one reflow pipe that links to each other with an inlet opening with above-mentioned second reserve tube, this reflow pipe is applicable to a pipeline from above-mentioned oil-fired system or automatic transmission system derivation and links to each other, article one, one or link to each other the bypass tube that the other end links to each other with the valving that is positioned at reflow pipe with above-mentioned supplying pipe or with delivery outlet; Above-mentioned valving is in order to make the liquid that flows out from above-mentioned inlet opening selectively or to flow into above-mentioned bypass tube or flow into second oil tank; Article one, stretch out from above-mentioned inlet opening, stretch into a waste liquid point, in order to the sewer pipe that the waste liquid that flows out from automatic transmission system is handled.
58. 58. transmission fluid as claimed in claim 57 is changed and inner cleaning equipment, it is characterized in that also comprising: the 3rd oil tank that communicates with sewer pipe at above-mentioned waste liquid point.
59. 59. transmission fluid as claimed in claim 58 is changed and inner cleaning equipment, it is characterized in that first oil tank is in the same place their liquid levels separately of comparison during in order to liquid in changing above-mentioned automatic transmission system with the 3rd oil tank is adjacent.
60. 60. transmission fluid as claimed in claim 59 is changed and inner cleaning equipment, it is characterized in that first oil tank and the 3rd oil tank stick together.
61. 61. transmission fluid as claimed in claim 57 is changed and inner the cleaning is not equipped with, it is characterized in that also comprising: the flow regulator in above-mentioned sewer pipe is adjustable.
62. 62. transmission fluid as claimed in claim 61 is changed and inner cleaning equipment, it is characterized in that also comprising: above-mentioned flow regulator comprises one or more flow control valves.

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