CN1085813C

CN1085813C - Method and equipment for cleaning lubricating system of engine

Info

Publication number: CN1085813C
Application number: CN99107917A
Authority: CN
Inventors: 朱永济
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-02
Filing date: 1999-06-02
Publication date: 2002-05-29
Anticipated expiration: 2019-06-02
Also published as: CN1276499A

Abstract

The present invention discloses a method and equipment for cleaning a lubricating system of an engine. Three different cleaning methods, namely a static cleaning method, a dynamic cleaning method and a back flush method, are completed by the same equipment. The equipment for realizing the method comprises a pump, a connecting pipeline, a flow direction control device, a momentary connection coupler, etc. The present invention has the structure characteristics that the equipment can complete the cleaning methods of the three states and liquid pumping by adopting the combination of the different states of one or a plurality of multi-channel flow direction controllers at least. The equipment is not provided with cleaning liquid storing equipment, and the equipment is simple and reliable. The method is complete, and can thoroughly clean the carbon deposit and the oil sludge of engines and effectively prolong the service life of the engines.

Description

Engine lubrication system cleaning method and equipment thereof

The present invention relates to a kind of engine lubrication system cleaning method and equipment thereof.

Engine lubrication system is deposited on each corner having many impurity after running after a while, the colloid that for example has oil ageing to produce, the carbon deposit that partial combustion forms, suck the solid particle that contains in the air of motor, the moving parts metal fillings that gets off etc. that weares and teares, they mix formation greasy filth.The deposition of greasy filth is blocked oil duct sometimes, blocks oil pump screen, influences the supply of lubricant oil; Sneak into lubricant oil engaging friction part surface sometimes, increase part surface wearing and tearing and heating.

For cleaning and the lubrication system that guarantees lubricant oil normally acts on, generally be to reach by periodic replacement lubricant oil and machine oil filter core, can not get rid of the greasy filth that has deposited fully but change oil, dirt on can not the scavenger oil pump screen, the oil suction flow still is restricted in engine running and add behind the new machine oil, simultaneously along with wash away and flow but have part greasy filth, impurity is sneaked into, and endangers motor.

The method of up-to-date cleaned engine lubrication system, as CN93119333 patent documentation disclosed method, be under the static condition of motor, with pump special-purpose cleaning solution injection engine main oil gallery under pressure, by flushing and solution dirt is dissolved in to flow down together in the cleaning solution and arrive the oily end, and to oil the end dirt soak the dissolving and the flushing, under certain negative pressure, extract out then by fuel outlet, but this cleaning equipment and cleaning method also have deficiency, when being engine running in whole machine body lubricant oil except in oil duct the operation, thereby also, the effect of splashing make these positions also deposit some dirts because of contacting with the numerous parts surface, static rinse can't be cleaned these positions, especially oil pump screen, it is the key position that guarantees oil flow rate, also is the key position that cleans, and common forward cleans the dirt that can not thoroughly remove on it, can't make it recover normal flow rate, make lubricated and dispel the heat and recover normal.

The purpose of this invention is to provide a kind of engine lube oil system cleaning method and equipment thereof, by static, dynamic and back flush method, the greasy filth of engine lubrication system, carbon deposit are cleaned completely, thereby prolong the working life of motor.

In order to achieve the above object, the technical solution used in the present invention is: adopt same equipment to finish three kinds of different cleaning methods such as " static rinse ", " dynamically cleaning ", " back flush ", engine interior is cleaned.

Described back flush is under engine stop-state, the cleaning solution of this equipment cleaning liquid pump output behind the filtrating equipment of this equipment again via engine motor oil filter core place, injection engine oil pump oil duct, and wash along the opposite direction with machine oil operation, so just can dissolve the dirt that is deposited on outside the oil pump screen, rinse well.

In order to realize that engine lube oil system equipment quiet, moving, oppositely cleaning method employing comprises pump, connecting pipeline, pressure-indication means, pumping pressure regulator, filtrating equipment, flow control apparatus, quick connect coupler, inspects cup etc., its structure characteristic is: this equipment does not set up the cleaning storing apparatus, but adopts the motor cavity to replace the cleaning solution storing apparatus; Described flow control apparatus is actual to be to adopt at least one multi-path to flow to controller, by flowing to the different conditions combination of controller, finishes quiet, moving, reverse three kinds of state cleaning methods and drawing liquid.

After adopting such scheme, owing to finish static state, dynamic, reverse three kinds of purging methods with same equipment, thereby the carbon deposit of engine lubrication system, greasy filth are thoroughly removed, recover the function of motor and prolong its working life.

Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.

Fig. 1 is engine lubrication system cleaning equipment general illustration A;

Fig. 2 is engine lubrication system cleaning equipment general illustration B;

Fig. 3 is an engine lubrication system static rinse flow graph;

Fig. 4 is that engine lubrication system is dynamically cleaned flow graph;

Fig. 5 is an engine lubrication system back flush flow graph;

Fig. 6 is an engine lubrication system discharge opeing flow graph.

The concrete performance of quiet, moving, the reverse three kinds of cleaning methods of engine lubrication system is as follows:

Only have one to carry compression pump 10 as shown in Figure 1 in the engine lubrication system cleaning equipment general illustration, this pump can be that motor-drive pump also can be a pneumatic pump, and this figure is a Pneumatic double diaphragm pump.Extremely shown in Figure 5 as Fig. 1, during work pressurized air via connecting pipeline 1 enter this equipment via pumping pressure regulator 2 decompression after connecting pipeline 3, DLT 4, connecting pipeline 5 and 7 and pressure-indication means 6 enter switch 8,9 numerical value that enter pneumatic pump 10 decompression back air pressure are shown by pressure-indication means 6 by the road then.Switch 8 control pneumatic pumps start and stop.

The suction side of pump through connecting pipeline 11 with inspect cup and 12 link to each other, inspect cup 12 the other ends and join through connecting pipeline 13 and quick connect coupler 14 and purge cock interface at the bottom of the engine oil, this part can produce negative pressure and makes oily bottom cleaning solution enter the conveying compression pump during pump work.Carry the pressurization delivery side of pump to enter DLT 24 after in succession through connecting

pipeline

21,22 and filtrating equipment 23, again by connecting pipeline 25 with flow to controller 28 and be connected.Flowing to controller 28 has four kinds of coupled condition, and state I is that position 26 and position 29 are connected, and all the other are closed; State I I is that position 26 and position 29 are connected, and position 42 and position 44 are connected, and all the other are closed; State I II is that position 26 is connected with position 42, and all the other are closed; State I V is that position 26 is connected with position 27, and all the other are closed.Position 44 ends that flow to controller 28 are connected with DLT 24 with filter 61 and through connecting pipeline 60 through connecting pipeline 45,62.The position 29 that flows to controller 28 is connected with pressure-indication means 34 through connecting pipeline 32, DLT 33, and connecting pipeline 35 connects quick Coupler 36 simultaneously, and quick connect coupler 36 main oil gallery through hole on the engine motor oil filter block is connected.The position 27 that flows to controller 28 connects quick connect coupler 31 through connecting pipeline 30.The position 42 that flows to controller 28 is through connecting pipeline 46, DLT 47, and connecting pipeline 50,48 and pressure-indication means 49 join, be connected simultaneously with quick connect coupler 51, quick connect coupler 51 again with the engine motor oil filter block in the machine oil pump oilhole be connected.

This equipment is by flowing to four kinds of different conditions of controller 28, and is corresponding with second page of described quiet, moving, reverse three kinds of working state and drawing liquid state, sees Table 1.

Table 1

Working state	Flow to controller 28
Working state	Flow to controller 28	Static rinse	I
Dynamically clean	II	Static rinse	I
Dynamically clean	II	Back flush	III
Drawing liquid	IV	Back flush	III

The above-mentioned controller 28 that flows to, realized quiet, moving, oppositely clean and four kinds of working staties of drawing liquid, it can be one, two or more mechanical valve, also can be other accommodation that applies to flow control apparatus of the present invention such as solenoid valve, manually operated valve, pneumatic valve, hydraulic operated valve or various valves that present embodiment is that a five terminal path flows to controller component.

Shown in Fig. 2 engine lubrication system cleaning equipment general illustration B, be the another mode of execution of equipment, its main construction features are to flow to controller 28A and 43 with two three paths to form.Flowing to controller 28A has three kinds of coupled condition, and state I is that position 26 and position 29 are connected, and position 26 and position 27 are closed; State I I is that position 26 and position 29 are closed, and position 26 and position 27 are connected; State I II is that position 26 is all closed with position 29,27.Flow to controller 43, three kinds of states are also arranged, state I is that position 42 and position 44 are connected, and position 42 and position 41 are closed; State I I is that position 42 and position 44 are closed, and position 42 and position 41 are connected; State I II is that position 42 and position 41,44 are all closed.Position 44 ends that flow to controller 43 are connected with DLT 24 with filter 61 and through connecting pipeline 60 through connecting

pipeline

45,62, the position 29 that flows to controller 28A is through connecting pipeline 32, DLT 33, pressure-indication means 34, connecting pipeline 35 connects quick Coupler 36, and quick connect coupler 36 main oil gallery through hole on the engine motor oil filter block is connected.The position 27 that flows to controller 28A connects quick connect coupler 31 through connecting pipeline 30.The position 42 that flows to controller 43 is connected with quick connect coupler 51 through connecting pipeline 46, DLT 47, connecting pipeline 50,48 and pressure-indication means 49, quick connect coupler 51 again with the engine motor oil filter block in the machine oil pump oilhole be connected.

This equipment is by flowing to controller 28A and 43 four kinds of various combinations of three kinds of coupled condition separately, and is corresponding with second page of described quiet, moving, reverse three kinds of working state and drawing liquid state, sees Table 2.

Table 2

Working state	Flow to controller 28	Flow to controller 43
Working state	Flow to controller 28	Flow to controller 43	Static rinse	I	III
Dynamically clean	I	I	Static rinse	I	III
Dynamically clean	I	I	Back flush	III	II
Drawing liquid	II	III	Back flush	III	II

Above-mentioned controller 28A and 43 of flowing to, realized quiet, moving, oppositely clean and four kinds of working staties of drawing liquid, it can be one, two or more conventional machinery valves, also can be that other applies to flow control apparatus of the present invention, as the accommodation of solenoid valve, manually operated valve, pneumatic valve and hydraulic operated valve or various valves, present embodiment is two tee ball valves.

More than during by the described four kinds of working staties of Fig. 1 and Fig. 2, the mobility status of cleaning solution is respectively referring to Fig. 3, Fig. 4, Fig. 5 and Fig. 6.

The equipment of realizing this engine lubrication system cleaning method does not set up the cleaning solution storing apparatus, but replaces with the motor cavity, and improves rinse liquid temperature with the waste heat after the engine warms, improves cleaning performance.

Whether filter need be changed by the pressure-indication means on the equipment shows whether its resistance decision of difference inspection of numerical value blocks.When pressure difference reaches certain value, just need to change filter, guaranteed cleaning performance in quantitative mode like this, also avoid unnecessary replacing filter, reach cost-effective effect.Thereby make filter core change standard quantitativeization, scientific.

This shows, above-mentioned engine lubrication system cleaning method and equipment thereof, method and apparatus different from the past significantly, its equipment has simple in structure, and reliable operation is easy to operate, the remarkable result that cost is low, and realize the cleaning method of quiet, moving, reverse three kinds of working staties effectively by the ringing of cleaning solution, it is clean to make carbon deposit, the greasy filth of motor be able to thorough removing, thereby has prolonged the working life of motor.

Claims

1. engine lubrication system cleaning method, it is characterized in that: this method is to finish the cleaning method of back flush with a cleaning equipment, engine interior is cleaned, described back flush is under the engine stop-state, the cleaning solution of this equipment cleaning liquid pump output through behind the filtrating equipment of this equipment again via engine motor oil filter core place, injection engine oil pump oil duct, and wash along the opposite direction with machine oil operation, like this can be, rinse well the dirt dissolving that is deposited on the oil pump screen outside.

2. a kind of engine lubrication system cleaning method according to claim 1 is characterized in that: whether filter replacing method is to block with its resistance decision of pressure difference value inspection, and whether the decision of pressing force difference size is changed.