CN110095381A - Oil dilution degree detection device and detection method - Google Patents
Oil dilution degree detection device and detection method Download PDFInfo
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- CN110095381A CN110095381A CN201910421660.XA CN201910421660A CN110095381A CN 110095381 A CN110095381 A CN 110095381A CN 201910421660 A CN201910421660 A CN 201910421660A CN 110095381 A CN110095381 A CN 110095381A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
- G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
- G01N11/06—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by timing the outflow of a known quantity
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- General Health & Medical Sciences (AREA)
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of oil dilution degree detection device and detection methods, wherein the oil dilution degree detection device includes: volume bottle, is formed with oilhole and stomata on the volume bottle；The pumping end of vacuum pump, the vacuum pump connects the stomata；Oil intake assembly, the oil intake assembly include oil pipe and the wiper switch that is set on the oil pipe；For the first end of the oil pipe for being inserted into oil liquid to be detected, the second end of the oil pipe connects the oilhole；Show that logger, the display logger include temperature detecting unit and timing unit, the detection probe of the temperature detecting unit protrudes into the oil pipe with the temperature for the oil liquid being able to detect into the oil pipe；The timing unit is electrically connected the wiper switch can carry out timing to the opening time of the wiper switch.Oil dilution degree detection device of the invention and detection method aim to solve the problem that existing oil dilution degree detection device measuring accuracy is low and has the technical issues of particular requirement to oil temperature.
Description
Technical field
The present invention relates to oil dilution degree detection field more particularly to a kind of oil dilution degree detection device and detection sides
Method.
Background technique
In order to cope with national fuel economy regulation and energy crisis, more and more main engine plants are developing direct-injection booster gasoline
Machine reduces engine fuel consumption to reduce.Since direct fuel-injection engine power per liter is big compared with high, detonation pressure and fuel directly passes through oil spout
Factors increase the risk that oil dilution occurs in device penetrating cylinder etc..The main reason for generating oil dilution is that fuel oil enters crankshaft
It in case and is blended in machine oil, engine oil viscosity is caused to decline.Engine oil viscosity decline will lead to crankshaft, camshaft, timing chain
The movement parts insufficient lubrication such as item, will lead to engine damage when serious.
In current oil dilution detection method, including off-line checking method and online test method.Offline inspection side
Method is usually after the completion of vehicle is tested, harvester oil samples, by carrying out composition test to it, including pyrolysis weight method, gas phase
Chromatograph detection method, gravimetry, viscosity measurements method etc..Viscosity measurements method by equipment by machine oil heating to assigned temperature,
Using constant volume flow velocity cup and timing device, the flow velocity of machine oil is calculated, it is viscous finally to calculate machine oil according to current meter using formula
Degree.Part of appliance needed for off-line checking method is more, and complicated operation, and timing guarantees by personnel, and precision is lower.Viscosity inspection
Survey method has specific requirement to oil temperature, needs to heat machine oil.During heating, the impurity such as the fuel oil in machine oil and moisture
Can volatilize a part, influence measuring accuracy, and need external power supply, be unfavorable for the use of tester field.
Summary of the invention
The main purpose of the present invention is to provide a kind of oil dilution degree detection device and detection method, the oil dilution degree
Detection device and detection method aim to solve the problem that existing oil dilution degree detection device measuring accuracy is low and has spy to oil temperature
The technical issues of provisioning request.
To achieve the goals above, the present invention provides a kind of oil dilution degree detection device, the oil dilution degree detection
Device includes:
Volume bottle is formed with oilhole and stomata on the volume bottle；
The pumping end of vacuum pump, the vacuum pump connects the stomata；
Oil intake assembly, the oil intake assembly include oil pipe and the wiper switch that is set on the oil pipe；The oil pipe
For first end for being inserted into oil liquid to be detected, the second end of the oil pipe connects the oilhole；
Show logger, the display logger includes temperature detecting unit and timing unit, the temperature detecting unit
Detection probe protrude into the oil pipe with the temperature for the oil liquid being able to detect into the oil pipe；The timing unit is electrically connected
The wiper switch is connect so that timing can be carried out to the opening time of the wiper switch.
Preferably, pressure-control valve is provided on the volume bottle.
Preferably, the vacuum pump is Manual piston-type vacuum pump, and the pumping end of the Manual piston-type vacuum pump passes through
Tracheae connects the stomata.
Preferably, the Manual piston-type vacuum pump include cylinder body, the one-way exhaust valve being set on the cylinder body and
It is slidably disposed in the intracorporal piston pumping rod of the cylinder, the pumping end is formed on the cylinder body.
Preferably, the detection probe of the temperature detecting unit is thermocouple wire.
Preferably, the oil dilution degree detection device further includes vacuum flask, and the volume bottle is contained in the vacuum flask
Vacuum layer is formed between the interior and described volume bottle and vacuum flask.
Preferably, the oil dilution degree detection device further includes the sealing-plug for being sealed in the bottleneck of the vacuum flask.
Preferably, the wiper switch include it is mechanical screw switch and be set to the machinery screw brush on switch.
Preferably, stamp has graduation mark on the volume bottle.
In addition, being detected the present invention also provides a kind of detection method of oil dilution degree applied to the oil dilution degree
The step of device, the application method includes:
It resets the display logger and is in close state the wiper switch；
Controlling the vacuum pump work makes in the volume bottle in preset negative pressure state；
The wiper switch is opened after the first end of the oil pipe is inserted into the oil liquid to be detected；
The oil mass in the volume bottle is observed, the wiper switch is closed when the oil mass reaches preset value；
The temperature data and time data for reading the display logger record, by the temperature data and data generation time
Enter the dilution for being compared to obtain machine oil in database
In the scheme of the application, since oil dilution degree detection device includes volume bottle, vacuum pump, oil intake assembly and display
Logger.The stomata of the pumping end connection volume bottle of vacuum pump makes volume bottle be in preset negative with the air extracted in volume bottle
Pressure condition.Oil intake assembly includes oil pipe and the wiper switch that is set on the oil pipe, and wiper switch is used to open or closes oil
Pipe, and wiper switch is electrically connected the timing unit.When wiper switch is opened, wiper switch, which generates a signal, makes timing list
Member starts timing, and when wiper switch is closed, wiper switch generates a signal again makes timing unit stop timing.Display record
The temperature for the oil liquid that device is used to show access into the oil pipe and the opening time of wiper switch.When practical operation, remember display
Record device resets and is in close state the wiper switch, and controlling the vacuum pump work makes in the volume bottle in default
Negative pressure state, then will the oil pipe first end be inserted into the oil liquid to be detected after open the wiper switch, negative pressure
The volume bottle of state can be sucked oil liquid to be detected in volume bottle by oil pipe, and testing staff observes the oil in the volume bottle
Amount, the wiper switch is closed when the oil mass reaches preset value.It is hereby achieved that the oil liquid to be detected at a temperature of certain exists
Enter in volume bottle time needed for reaching predetermined amount, then the temperature data that record is obtained and data generation time under particular pressure
Enter the dilution for being compared to obtain machine oil in database.The oil dilution degree detection device of the application is easy to operate, can be right
Oil liquid carries out automatic temperature measurement and to detection process self-clocking, is not necessarily to machine oil heating to assigned temperature.Pass through small-capacity cells
The power supply needs that display logger can be met, therefore do not need external power supply yet, can directly field carry out using.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The mechanism shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the overall schematic of the oil dilution degree detection device of the embodiment of the present invention；
Fig. 2 is the schematic diagram of the database of the embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | Volume bottle | 200 | Vacuum pump |
| 210 | Cylinder body | 220 | One-way exhaust valve |
| 230 | Piston pumping rod | 300 | Oil pipe |
| 310 | Wiper switch | 400 | Show logger |
| 410 | Detection probe | 420 | Signal wire |
| 500 | Vacuum flask | 510 | Sealing-plug |
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
Attached drawing 1 and attached drawing 2 are referred to, the present invention provides a kind of oil dilution degree detection device, the oil dilution degree inspection
Surveying device includes:
Volume bottle 100 is formed with oilhole and stomata on volume bottle 100；
The pumping end of vacuum pump 200, vacuum pump 200 connects stomata；
Oil intake assembly, oil intake assembly include oil pipe 300 and the wiper switch 310 that is set on oil pipe 300；Oil pipe 300
For first end for being inserted into oil liquid to be detected, the second end of oil pipe 300 connects oilhole；
Show that logger 400, display logger 400 include temperature detecting unit and timing unit, temperature detecting unit
Detection probe 410 protrudes into oil pipe 300 temperature for being able to detect the oil liquid entered in oil pipe 300；Timing unit electrical connection electricity
Switch 310 is brushed so that timing can be carried out to the opening time of wiper switch 310.
In the scheme of the application, since oil dilution degree detection device includes volume bottle 100, vacuum pump 200, oil intake assembly
With display logger 400.The stomata of the pumping end connection volume bottle 100 of vacuum pump 200 is made with extracting the air in volume bottle 100
Volume bottle 100 is in preset negative pressure state.Oil intake assembly includes oil pipe 300 and the wiper switch that is set on oil pipe 300
310, wiper switch 310 is used to open or closes oil pipe 300, and wiper switch 310 is electrically connected timing list by signal wire 420
Member.When wiper switch 310 is opened, wiper switch 310, which generates a signal, makes timing unit start timing, works as wiper switch
When 310 closing, wiper switch 310 generates a signal again makes timing unit stop timing.Display logger 400 for show into
Enter the temperature of the oil liquid in oil pipe 300 and the opening time of wiper switch 310.When practical operation, make to show that logger 400 resets
And it is in close state wiper switch 310, the control work of vacuum pump 200 makes to be in preset negative pressure state in volume bottle 100,
Then wiper switch 310,100 meeting of volume bottle of negative pressure state are opened after the first end of oil pipe 300 being inserted into oil liquid to be detected
Oil liquid to be detected is sucked in volume bottle 100 by oil pipe 300, testing staff observes the oil mass in volume bottle 100, when oil mass reaches
Wiper switch 310 is closed when to preset value.Hold it is hereby achieved that the oil liquid to be detected at a temperature of certain enters under particular pressure
Time needed for reaching predetermined amount in product bottle 100, then will the obtained temperature data of record and time data substitute into database into
Row compares and obtains the dilution of machine oil.The oil dilution degree detection device of the application is easy to operate, can carry out to oil liquid automatic
Thermometric and to detection process self-clocking, without by machine oil heating to assigned temperature.Display can be met by small-capacity cells
The power supply of logger 400 needs, therefore does not also need external power supply, can directly field carry out using.
It should be noted that the available equipment test with this patent equivalent specifications of establishing of above-mentioned database is being set
100 vacuum degree of volume bottle such as -10kpa, equipment extract the machine oil of different dilution rates under different temperatures under set volume such as 30ml
The required time, and all test datas are done into the database that statistics forms form, as shown in Fig. 2.Tester
Member after the test, according to the temperature and time data of reading, searches database, and carry out difference to the data not having in database
Process of fitting treatment judges oil dilution rate.
As the preferred embodiments of the present invention, pressure-control valve is provided on volume bottle 100.Pressure-control valve is used for
Guarantee that the negative pressure in volume bottle 100 is at preset state, when the negative pressure in volume bottle 100 is lower than a certain particular value,
Such as -10kpa, pressure valve is opened, and outside air enters in volume bottle 100 negative pressure for reducing volume bottle 100 by pressure valve.Cause
As long as this vacuum pump 200, which extracts, can stop extracting air after air opens pressure-control valve, pressure-control valve is automatic
Negative pressure value in closing volume bottle 100 is the opened by pressure value of pressure-control valve.Present embodiment passes through in volume bottle 100
Upper setting pressure valve can control the testing pressure of volume bottle 100 in stable preset value, the accuracy of guarantee test.
It should be understood that if the scheme of the application is not provided with what pressure-control valve also can be achieved on.Such as before test
Make to be in communication with the outside in volume bottle 100 so that the pressure in volume bottle 100 is equal to atmospheric pressure.It is establishing database and is being tried
When testing, the opening time of vacuum pump 200 is identical, to be defaulted as under identical pressure atmosphere.Certainly, setting pressure controls
Valve can further ensure that the accuracy of pressure conditions, and the air capacity for being also not necessary to guaranty that vacuum pump 200 extracts every time is identical, more
It is easy to implement.
Preferably, vacuum pump 200 is Manual piston-type vacuum pump 200, and the pumping end of Manual piston-type vacuum pump 200 passes through
Tracheae connects stomata.The negative pressure as needed for the present apparatus is little, and the oil level of extraction is also few, using Manual piston-type vacuum pump
200 can meet the requirement of test.Manual piston-type vacuum pump 200 is not necessarily to external power supply, and at low cost, convenient to carry out in field
Test.
As further embodiment of the invention, Manual piston-type vacuum pump 200 includes cylinder body 210, is set to cylinder
One-way exhaust valve 220 on body 210 and the piston pumping rod 230 being slidably disposed in cylinder body 210, pumping end are formed in
On cylinder body 210.One-way exhaust valve 220 makes air that can only be discharged to the external world from cylinder body 210, and cannot enter cylinder body from the external world
In 210: when piston pumping rod 230 is in pumping stroke, exhaust valve closure, when piston pumping rod 230 is in return stroke,
Exhaust valve is opened, the air that discharge hand-operating vacuum-pump 200 extracts.
Preferably, the detection probe 410 of temperature detecting unit is thermocouple wire.Display logger 400 has display thermoelectricity
Thermo wires test temperature and clocking capability, and there is reset function.Thermocouple wire is arranged in oil pipe 300 and the length of thermocouple wire
Degree is oriented parallel to the length direction of oil pipe 300.The length of oil pipe 300 is preferably 400-600mm, and internal diameter is preferably 4-6mm, heat
The length of thermocouple wire can be suitable with the length of oil pipe 300.
As a specific embodiment of the invention, oil dilution degree detection device further includes vacuum flask 500, volume bottle 100
It is contained in vacuum flask 500 and is formed with vacuum layer between volume bottle 100 and vacuum flask 500.Volume bottle 100 and vacuum flask 500
Between space vacuumize, to realize heat insulation function, volume bottle 100 and vacuum flask 500 can be all made of transparent material, such as glass
Glass.Further, stamp has graduation mark on volume bottle 100, and graduation mark is for liquid volume in convenient reading bottle.
Preferably, oil dilution degree detection device further includes the sealing-plug 510 for being sealed in the bottleneck of vacuum flask 500.Volume
Bottle 100 is sealed in vacuum flask 500, and oil pipe 300 passes through sealing-plug 510 and connect with the oilhole of volume bottle 100.Volume bottle 100
The hard tube that stomata can pass through sealing-plug 510 by one is in communication with the outside, and the pumping end of vacuum pump 200 passes through hose and the hard tube
Connection.
As further embodiment of the invention, wiper switch 310 includes that machinery screws switch and is set to machinery
Screw the brush on switch.Machinery screws switch and opens or lock oil pipe 300 by dextrorotation or derotation, and brush is arranged in machinery
Switch is screwed to follow machinery to screw switch rotation, brush can send signal to timing unit in dextrorotation or derotation.
In addition, the present invention also provides a kind of detection method of oil dilution degree, the oil dilution degree detection device being applied to,
The step of application method includes:
S10 resets display logger and is in close state wiper switch；
Before each test, display logger is resetted.And guarantee that wiper switch is in close state, so that volume
Bottle is isolated from the outside to vacuumize and preparing.
S20, control vacuum pump work make in volume bottle in preset negative pressure state；
The stomata of the pumping end connection volume bottle of vacuum pump, control vacuum pump work make to hold with the air extracted in volume bottle
Product bottle is in preset negative pressure state.
S30 opens wiper switch after the first end of oil pipe is inserted into oil liquid to be detected；
After being in preset negative pressure state in volume bottle, electricity is opened after the first end of oil pipe is inserted into oil liquid to be detected
Brush switch, wiper switch, which sends signal to the timing unit of display logger, makes timing unit start timing.The appearance of negative pressure state
Product bottle can be sucked oil liquid to be detected in volume bottle by oil pipe, and testing staff observes the oil mass in volume bottle.
S40 observes the oil mass in volume bottle, wiper switch is closed when oil mass reaches preset value；
Wiper switch is closed when the oil mass in volume bottle reaches preset value when testing staff observes, wiper switch can be again to aobvious
Show that the timing unit of logger sends a signal and timing unit is made to stop timing.
S50, reads the temperature data and time data of display logger record, and temperature data and time data are substituted into number
According to being compared to obtain the dilution of machine oil in library.
Testing staff reads and records temperature data and time data on display logger, substitutes into database and is compared
To obtaining the dilution of machine oil.Wherein, the foundation of database utilizes the appearance tested with the equipment of this patent equivalent specifications in setting
Product bottle vacuum degree extracts required for set volume machine oil of different dilution rates such as under different temperatures under 30ml such as -10kpa, equipment
Time, and all test datas are done into the database that statistics forms form.
In the detection method of the application, when wiper switch is opened, wiper switch, which generates a signal, opens timing unit
Beginning timing, when wiper switch is closed, wiper switch generates a signal again makes timing unit stop timing.Show that logger is used
In the temperature of the oil liquid showed access into oil pipe and the opening time of wiper switch.When practical operation, make to show that logger resets
And it is in close state wiper switch, control vacuum pump work makes in preset negative pressure state in volume bottle, then will be oily
The first end of pipe opens wiper switch after being inserted into oil liquid to be detected, and oil liquid to be detected can be passed through oil by the volume bottle of negative pressure state
Pipe sucks in volume bottle, and testing staff observes the oil mass in volume bottle, and wiper switch is closed when oil mass reaches preset value.Thus
Available oil liquid to be detected at a temperature of certain enters in volume bottle under particular pressure reach predetermined amount needed for the time, then will
It records obtained temperature data and time data substitutes into database and are compared to obtain the dilution of machine oil.The detection of the application
Method is easy to operate, automatic temperature measurement can be carried out to oil liquid and to detection process self-clocking, without by machine oil heating to specifying
Temperature.The power supply needs of display logger can be met by small-capacity cells, therefore also do not need external power supply, can directly be existed
Field carry out using.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent mechanism made by bright specification and accompanying drawing content or equivalent process transformation are applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of oil dilution degree detection device, which is characterized in that the oil dilution degree detection device includes:
Volume bottle is formed with oilhole and stomata on the volume bottle；
The pumping end of vacuum pump, the vacuum pump connects the stomata；
Oil intake assembly, the oil intake assembly include oil pipe and the wiper switch that is set on the oil pipe；The first of the oil pipe
For being inserted into oil liquid to be detected, the second end of the oil pipe connects the oilhole at end；
Show logger, the display logger includes temperature detecting unit and timing unit, the inspection of the temperature detecting unit
Probing head protrudes into the oil pipe with the temperature for the oil liquid being able to detect into the oil pipe；The timing unit is electrically connected institute
Wiper switch is stated so that timing can be carried out to the opening time of the wiper switch.
2. oil dilution degree detection device according to claim 1, which is characterized in that be provided with pressure on the volume bottle
Control valve.
3. oil dilution degree detection device according to claim 1, which is characterized in that the vacuum pump is Manual piston-type
The pumping end of vacuum pump, the Manual piston-type vacuum pump connects the stomata by tracheae.
4. oil dilution degree detection device according to claim 2, which is characterized in that the Manual piston-type vacuum pump packet
It includes cylinder body, the one-way exhaust valve being set on the cylinder body and is slidably disposed in the intracorporal piston pumping rod of the cylinder,
The pumping end is formed on the cylinder body.
5. oil dilution degree detection device according to claim 1, which is characterized in that the detection of the temperature detecting unit
Probe is thermocouple wire.
6. according to claim 1 to oil dilution degree detection device described in 5 any one, which is characterized in that the machine oil is dilute
Degree of releasing detection device further includes vacuum flask, and the volume bottle is contained in the vacuum flask and between the volume bottle and vacuum flask
It is formed with vacuum layer.
7. oil dilution degree detection device according to claim 6, which is characterized in that the oil dilution degree detection device
It further include the sealing-plug for being sealed in the bottleneck of the vacuum flask.
8. according to claim 1 to oil dilution degree detection device described in 5 any one, which is characterized in that the brush is opened
It closes to screw switch including machinery and be set to the machinery and screws the brush on switching.
9. according to claim 1 to oil dilution degree detection device described in 5 any one, which is characterized in that the volume bottle
Upper stamp has graduation mark.
10. a kind of detection method of oil dilution degree, which is characterized in that applied to machine described in claim 1 to 9 any one
The step of oily Cigarette dilution detection device, the application method includes:
It resets the display logger and is in close state the wiper switch；
Controlling the vacuum pump work makes in the volume bottle in preset negative pressure state；
The wiper switch is opened after the first end of the oil pipe is inserted into the oil liquid to be detected；
The oil mass in the volume bottle is observed, the wiper switch is closed when the oil mass reaches preset value；
The temperature data and time data for reading the display logger record, substitute into number for the temperature data and time data
According to being compared to obtain the dilution of machine oil in library.
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| CN201910421660.XA CN110095381B (en) | 2019-05-20 | 2019-05-20 | Engine oil dilution detection device and detection method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110907185A (en) * | 2019-11-16 | 2020-03-24 | 重庆长安汽车股份有限公司 | Engine oil dilution test method |
| CN111207928A (en) * | 2020-02-20 | 2020-05-29 | 重庆长安汽车股份有限公司 | Engine oil emulsification and engine oil dilution comprehensive verification method |
| CN112179804A (en) * | 2020-09-29 | 2021-01-05 | 哈尔滨东安汽车动力股份有限公司 | Supercharged engine oil dilution evaluation method |
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