CN110320045A - The device and method of oil measurement are altered for engine - Google Patents
The device and method of oil measurement are altered for engine Download PDFInfo
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- CN110320045A CN110320045A CN201910618507.6A CN201910618507A CN110320045A CN 110320045 A CN110320045 A CN 110320045A CN 201910618507 A CN201910618507 A CN 201910618507A CN 110320045 A CN110320045 A CN 110320045A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
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- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The present invention discloses a kind of device and method that oil measurement is altered for engine, the device for altering oil measurement for engine includes device noumenon and pressure compensator, device noumenon is formed with cavity, cavity offers feed inlet and gas outlet, filter device is equipped in cavity, so that gas-liquid enters from feed inlet, gas and oil liquid are separated into after filter device acts on, and supplied gas is exported from gas outlet；Pressure compensator is set to device noumenon, for the pressure value of regulating device ontology, so that the output pressure value of device noumenon is suitable with input pressure value.In the present invention, filter device can optimize the separating effect of gas-liquid, help to be completely separated out the oil liquid in gas-liquid；Pressure compensator helps to eliminate the problem of cavity internal resistance caused by due to filter device is arranged increases, by the intracorporal pressure balance of adjusting cavity, it can be ensured that gas-liquid circulation is stablized, to obtain more accurate measurement result.
Description
Technical field
The present invention relates to the technical field of the detection of engine, in particular to the engine technical field of altering oil mass detection,
More particularly to a kind of device and method for altering oil measurement for engine.
Background technique
Generally, engine can be generated during the work time by the gas blowby of combustion mixture and exhaust gas mixing, the gas blowby
Gap of the meeting between piston ring and cylinder sleeve is scurried into crankcase, if handled not in time, will be caused in engine crankcase
Pressure gradually rise, eventually lead to engine oil seal failure, engine oil leakage the problems such as；If also, directly the gas blowby is arranged
Enter atmosphere, also will cause atmosphere pollution.Therefore, in order to ensure the normal operation of engine, it is logical that pressure can be generally arranged in crankcase
Wind system, ventilating system will guide gas blowby to be circulated to combustion chamber, to be burnt again；However, forced ventilation system can not
The meeting avoided brings gas blowby into combustion chamber together with machine oil drop, causes a large amount of consumption of machine oil, shortens the oil exchange period.
In order to which monitor engine motor oil alters whether oil mass is normal, the measurement method that traditional engine motor oil alters oil mass is
The machine oil taken out of in PCV system is collected using oil bottle is altered, and the matter of oil bottle test front and back is then altered by weighing
It measures increment and alters oil mass to calculate, still, this alters oil bottle simply by standing and condensing to separate gas blowby and oil liquid, and there are when separation
Between longer, and the drawback that separating effect is bad, reduce the accuracy for altering oil measurement result.
Summary of the invention
The main object of the present invention is to propose a kind of device and method that oil measurement is altered for engine, it is intended to be solved
Traditional engine motor oil alters oil measurement device there are separating effects bad, the problem of reducing the accuracy of measurement result.
To achieve the above object, a kind of device for altering oil measurement for engine proposed by the present invention, comprising:
Device noumenon, described device ontology are formed with cavity, and the cavity offers feed inlet and gas outlet, the cavity
It is interior to be equipped with filter device, so that gas-liquid enters from the feed inlet, it is separated into gas and oil liquid after filter device effect,
And it is exported for the gas from the gas outlet；And
Pressure compensator is set to described device ontology, for adjusting the pressure value of described device ontology, so that described
The output pressure value of device noumenon is suitable with input pressure value.
Optionally, the filter device includes:
One end sealing of gas-liquid channel, the gas-liquid channel is connected to the feed inlet, and the other end is connected to the gas outlet；With
And
First filter assemblies and the second filter assemblies, first filter assemblies and the second filter assemblies are along gas-liquid circulation side
It is laid in the gas-liquid channel to interval, for the oil liquid in second interception gas-liquid.
Optionally, first filter assemblies include an at least filter paper for oil, and the filter paper for oil is logical relative to the gas-liquid
The radial truncation surface in road is inclined to set；And/or
Second filter assemblies include an at least filter paper for oil, radial direction of the filter paper for oil relative to the gas-liquid channel
Truncation surface is inclined to set.
Optionally, described device ontology is one transparent to alter oil bottle, and the transparent setting of the gas-liquid channel.
Optionally, the cavity is also provided with oil outlet；
Described device ontology includes interconnected from top to bottom upper body and lower body, the upper body and lower described
Both bodies are detachably connected, and the gas outlet is set to the upper body, and the oil outlet is set to the lower body.
Optionally, described device ontology further includes a bypass branch, and one end of the bypass branch is connected to by triple valve
The other end of the feed inlet, the bypass branch is connected to the gas outlet.
Optionally, described device ontology further includes output pipe, and the arrival end of the output pipe is connected to the gas outlet；
The pressure compensator includes:
First pressure sensor is set to the feed inlet, for measuring the input pressure value；
Third pressure sensor, set on the outlet end of the output pipe, for measuring the output pressure value；
Vacuum pump component is set to the output pipe, for adjusting the air pressure size in the output pipe；And
The first pressure sensor, the third pressure sensor and the vacuum is electrically connected in controller
Pump assembly, to control the vacuum pump component operation, realize the dress according to the input pressure value and the output pressure value
The output pressure value for setting ontology is suitable with input pressure value.
Optionally, the pressure compensator further includes second pressure sensor, and the second pressure sensor is set to institute
Gas outlet or the arrival end are stated, for measuring delivery pressure force value；
The controller is electrically connected the second pressure sensor, according to the input pressure value, the delivery pressure
Force value and the output pressure value, control the vacuum pump component operation, realize the output pressure value of described device ontology with it is defeated
It is suitable to enter pressure value.
In addition, the present invention also proposes a kind of method for altering oil measurement for engine, comprising the following steps:
The input pressure value and output pressure value of real-time acquisition device ontology；
Determine the pressure difference value of both the input pressure value and the output pressure value；
According to the pressure difference value, the pressure value at the gas outlet of described device ontology is adjusted based on pressure compensator,
So that the output pressure value and the input pressure value are suitable；
Control filter device works and acquires oil liquid, obtains the oil liquid amount in preset time period.
Optionally, the step of input pressure value and output pressure value of the real-time acquisition device ontology includes:
Regulating three-way valve, so that gas-liquid enters from the feed inlet of described device ontology, through the bypass branch, and from institute
The gas outlet output for stating device noumenon after continuing the T1 time, obtains the input pressure value based on first pressure sensor；
Regulating three-way valve, so that gas-liquid enters from the feed inlet of described device ontology, through the cavity, and from the dress
The gas outlet output for setting ontology after continuing the T2 time, obtains the output pressure value based on third pressure sensor.
In technical solution provided by the invention, by the setting filter device, the separating effect of gas-liquid can be optimized, thus
Help to be completely separated out the oil liquid in gas-liquid；In addition, the setting of the pressure compensator, helps to eliminate because described in setting
Filter device and caused by cavity internal resistance the problem of increasing, by adjusting the intracorporal pressure balance of chamber, it can be ensured that
Gas-liquid circulation is stablized, to obtain more accurate measurement result.
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 structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram that the first embodiment of device of oil measurement is altered provided by the present invention for engine；
Fig. 2 is the structural schematic diagram that the second embodiment of device of oil measurement is altered provided by the present invention for engine.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 1 | Device noumenon | 24 | Filter paper for oil |
| 1a | Upper body | 31 | First pressure sensor |
| 1b | Lower body | 32 | Second pressure sensor |
| 11 | Cavity | 33 | Third pressure sensor |
| 12 | Feed inlet | 341 | Vacuum pump |
| 13 | Gas outlet | 342 | Servo motor |
| 14 | Oil outlet | 35 | Controller |
| 2 | Filter device | 4 | Output pipe |
| 21 | Gas-liquid channel | 5 | Bypass branch |
| 22 | First filter assemblies | 6 | Triple valve |
| 23 | Second filter assemblies |
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.
Specific embodiment
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 if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.In addition, the meaning of the "and/or" occurred in full text, including three schemes arranged side by side, by taking " A and/or B " as an example, including the side A
The scheme that case or B scheme or A and B meet simultaneously.In addition, the technical solution between each embodiment can be combined with each other, but
To be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occur it is conflicting or can not
Will be understood that the combination of this technical solution is not present when realization, also not the present invention claims protection scope within.
Generally, engine can be generated during the work time by the gas blowby of combustion mixture and exhaust gas mixing, the gas blowby
Gap of the meeting between piston ring and cylinder sleeve is scurried into crankcase, if handled not in time, will be caused in engine crankcase
Pressure gradually rise, eventually lead to engine oil seal failure, engine oil leakage the problems such as；If also, directly the gas blowby is arranged
Enter atmosphere, also will cause atmosphere pollution.Therefore, in order to ensure the normal operation of engine, it is logical that pressure can be generally arranged in crankcase
Wind system, ventilating system will guide gas blowby to be circulated to combustion chamber, to be burnt again；However, forced ventilation system can not
The meeting avoided brings gas blowby into combustion chamber together with machine oil drop, causes a large amount of consumption of machine oil, shortens the oil exchange period.
In order to which monitor engine motor oil alters whether oil mass is normal, the measurement method that traditional engine motor oil alters oil mass is
The machine oil taken out of in PCV system is collected using oil bottle is altered, and the matter of oil bottle test front and back is then altered by weighing
It measures increment and alters oil mass to calculate, still, this alters oil bottle simply by standing and condensing to separate gas blowby and oil liquid, and there are when separation
Between longer, and the drawback that separating effect is bad, reduce the accuracy for altering oil measurement result.
In consideration of it, the present invention provides a kind of device for altering oil measurement for engine, Fig. 1 to Fig. 2 provides for the present invention
For engine alter oil measurement device specific embodiment.
Referring to Fig. 1, the device for altering oil measurement provided by the present invention for engine includes that device noumenon 1 and pressure are mended
Repay device, wherein described device ontology 1 is formed with cavity 11, and the cavity 11 offers feed inlet 12 and gas outlet 13, described
It is equipped with filter device 2 in cavity 11, so that gas-liquid enters from the feed inlet 12, is separated into after the filter device 2 effect
Gas and oil liquid, and exported for the gas from the gas outlet 13；The pressure compensator is set to described device ontology 1,
For adjusting the pressure value of described device ontology 1, so that the output pressure value of described device ontology 1 and input pressure value phase
When.
In technical solution provided by the invention, by the setting filter device 2, the separating effect of gas-liquid can be optimized, from
And help to be completely separated out the oil liquid in gas-liquid；In addition, the setting of the pressure compensator, helps to eliminate because institute is arranged
State filter device 2 and caused by 11 internal resistance of cavity the problem of increasing, by adjusting the pressure balance in the cavity 11,
It can ensure that gas-liquid circulation is stablized, to obtain more accurate measurement result.
With no restriction to the specific manifestation form of described device ontology 1, described device ontology 1 can be according to reality by the present invention
Using needs, arbitrary required shape is made by arbitrary material requested；In use, the feed inlet 12 can be connected to crankshaft
The outlet of case and the gas outlet 13 can be connected to the import of air filter；The setting position of the feed inlet 12 and the gas outlet 13
It sets in the design with no restriction, but preferably, the gas outlet 13 can be set in the upper end of the cavity 11, to extend gas
Circulation path of the liquid in the cavity 11, so that reserved time enough carries out centrifugation for the filter device 2；Separately
Outside, the feed inlet 12 and the specific structure of the gas outlet 13 in the design also with no restriction, for example, the feed inlet 12
It can be the pipeline being arranged in any suitable shape or opening with the gas outlet 13.
Further, in the present embodiment, the filter device 2 include gas-liquid channel 21, the first filter assemblies 22 and
Second filter assemblies 23, wherein one end sealing of the gas-liquid channel 21 is connected to the feed inlet 12, and other end connection is described out
Port 13；First filter assemblies 22 and the second filter assemblies 23 are laid in the gas-liquid channel along gas-liquid circulating direction interval
In 21, for the oil liquid in second interception gas-liquid.The gas-liquid circulating direction refer to gas-liquid from the feed inlet 12, through institute
State the direction of cavity 11, the extremely gas outlet 13 circulation.The specific manifestation form of the gas-liquid channel 21 is not made in the design
Limitation, for example, the gas-liquid channel 21 may include two chambers, between described two chambers, the chamber and the charging
It can be connected to by pipeline between mouth 12, between the chamber and the gas outlet 13, at this point, first mistake
Filter component 22 and the second filter assemblies 23 are divided into described two chambers.The setting of described two chambers is, it can be achieved that gas-liquid flow
By the slow energy of journey, to stablize the flow velocity of the gas-liquid, so that it is guaranteed that gas-liquid and first filter assemblies 22 and the second filtering
Component 23 comes into full contact with and realizes thorough separation.It certainly, can be direct between the gas-liquid channel 21 and the gas outlet 13
Connection, can also pass through 11 indirect communication of cavity.
Further, in the present embodiment, first filter assemblies 22 include an at least filter paper for oil 24, the filter
Oilpaper 24 is inclined to set relative to the radial truncation surface of the gas-liquid channel 21；Alternatively, second filter assemblies 23 include
An at least filter paper for oil 24, the filter paper for oil 24 are inclined to set relative to the radial truncation surface of the gas-liquid channel 21；Alternatively,
Above-mentioned two scheme is selected simultaneously.When the filter paper for oil 24 is arranged to multiple, multiple described filter paper for oils 24 can be along the gas
The setting of liquid circulating direction interval, at this point, the filter paper for oil 24 can separate the gas-liquid channel 21, and makes the gas-liquid
Channel 21 is formed with the multiple chamber sections set gradually along the gas-liquid circulating direction, and the multiple chamber section can carry out step by step oil liquid
Retention, to enhance gas-liquid separation effect, so that finally only gas is exported from the gas-liquid channel 21, and oil liquid is trapped within
In the filter device 2 or the cavity 11.Then, first filter assemblies 22 and the second filter assemblies 23 need to only be weighed
Weight total increment or weigh the filter device 2 or weigh the quality total augment weight of described device ontology 1, can be obtained
Accurately alter oil measurement result.In addition, the filter paper for oil 24 is obliquely installed, help to increase the filter paper for oil 24 with
Contact area between gas-liquid, to advanced optimize separating effect.Certainly, the filter paper for oil 24 may be arranged as in folding
Shape or dome shape etc. are equally used for increasing the contact area between gas-liquid.
In addition, in the present embodiment, described device ontology 1 be one it is transparent alter oil bottle, and the gas-liquid channel 21 is transparent
Setting.For example, described device ontology 1 is to be made of transparent glass to alter oil bottle, the gas-liquid channel 21 is also by transparent glass system
At.So set, without dismantling described device ontology 1 or the gas-liquid channel 21, operator can directly observe described
The gas-liquid separation situation of the inside of device noumenon 1 alters oil measurement progress and notes abnormalities in time convenient for knowing immediately.
When in use, when the gas-liquid for flowing through the cavity 11 is mixed with obvious less oil liquid, a small amount of oil liquid directly adheres to
On the filter paper for oil 24, being kept completely separate for gas-liquid can be realized；Conversely, when the gas-liquid that flow through the cavity 11 be mixed with obviously compared with
When more oil liquid, oil liquid amount is more than the adsorption saturation value of the filter paper for oil 24, at this point, the settable gas-liquid channel 21 at least exists
The position of corresponding first filter assemblies 22 and second filter assemblies 23 is connected to setting with the cavity 11, so that through
After the filter paper for oil 24 adsorbs, excessive oil liquid can directly drop to bottom or the warp of the cavity 11 along the connectivity part
It crosses the condensation of 11 inner wall of cavity and is settled down to the bottom of the cavity 11.The cavity 11 is also provided with oil outlet
14, for example settable lid of oil outlet 14 realizes the retractable setting of the oil outlet 14, convenient for oil liquid needs when
It waits, directly topples over discharge through the oil outlet 14；Certainly, referring to Fig. 2, it includes from upper that described device ontology 1, which can also be arranged,
To lower interconnected upper body 1a and lower body 1b, both the upper body 1a and the lower body 1b are detachably connected, institute
Gas outlet 13 is stated set on the upper body 1a, the oil outlet 14 is set to the lower body 1b.The upper body 1a and it is described under
Being detachably connected between ontology 1b not only facilitates so that operator can at any time as needed take out the lower body 1b
In directly measurement oil liquid amount and observation Oil Quality, the oil outlet 14 of timely dredge blockage is additionally aided.
In addition, in the present embodiment, described device ontology 1 further includes a bypass branch 5, one end of the bypass branch 5
It is connected to the feed inlet 12 by triple valve 6, the other end of the bypass branch 5 is connected to the gas outlet 13.So set, making
Obtaining the device for altering oil measurement for engine has from the feed inlet 12, through the cavity 11, the extremely gas outlet
13 measuring route, and the circulation path from the feed inlet 12, through the bypass branch 5, the extremely gas outlet 13；It is described
Triple valve 6 can be in through manual operation or Electronic control, the arbitrary switch device for altering oil measurement for engine
The measuring route is in the circulation path, functionally more diversity.
In the present embodiment, described device ontology 1 further includes output pipe 4, and the arrival end of the output pipe 4 is connected to institute
State gas outlet 13；The pressure compensator include first pressure sensor 31, third pressure sensor 33, vacuum pump component with
And controller 35, wherein the first pressure sensor 31 is set to the feed inlet 12, for measuring the input pressure value；
The third pressure sensor 33 is set to the outlet end of the output pipe 4, for measuring the output pressure value；The vacuum
Pump assembly is set to the output pipe 4, for adjusting the air pressure size in the output pipe 4；The controller 35 is electric respectively
Property the connection first pressure sensor 31, the third pressure sensor 33 and the vacuum pump component, according to
Input pressure value and the output pressure value control the vacuum pump component operation, realize the output pressure of described device ontology 1
It is worth suitable with input pressure value.Specifically, the vacuum pump component for example including vacuum pump 341 and with the vacuum pump 341
The concrete operation method of the servo motor 342 of electric connection, the vacuum pump 341 and the servo motor 342 can refer to existing
Technology is not described further herein.When opening measurement work, in the case where the gas-liquid in the cavity 11 is in and stablizes circulation status, control
Device 35 calculates the input pressure value and output pressure value pressure difference value between the two first, and by pre-set
The corresponding relationship of the pressure difference value and compensation rate obtains the theoretical compensation rate, and the theoretical compensation rate is converted
For the corresponding control signal of the vacuum pump component, so that the vacuum pump component is adjusted accordingly.
Then, in the present embodiment, the pressure compensator further includes second pressure sensor 32, the second pressure
Sensor 32 is set to the gas outlet 13 or the arrival end, for measuring delivery pressure force value；The controller 35 electrically connects
The second pressure sensor 32 is connect, according to the input pressure value, the delivery pressure force value and the output pressure value, control
The vacuum pump component operation is made, realizes that the output pressure value of described device ontology 1 is suitable with input pressure value.So set,
So that described device ontology 1 is in without waiting for the gas-liquid in the cavity 11 stablizes circulation status, measurement work can be opened,
Specifically, the controller 35 calculates the input pressure value and delivery pressure force value pressure difference value between the two first,
And by the corresponding relationship of the pre-set pressure difference value and compensation rate, the compensation rate in real time is obtained, and will be real-time
The compensation rate be converted to the corresponding control signal of the vacuum pump component, so that the vacuum pump component is adjusted accordingly
Section.Since the gas in the output pipe 4 circulates in real time, the setting of the second pressure sensor 32 helps to obtain in advance
The pressure difference value is obtained, and in the grace time section that gas flows through the output pipe 4, carries out accurate pressure compensation, makes
The pressure value that the third pressure sensor 33 measures is obtained, as current accurately output pressure value, and the non-delayed some time
Output pressure value afterwards.
In addition, in the present embodiment, the respective junction of three valve ports, the feed inlet 12 and the institute of the triple valve 6
State the junction of gas-liquid channel 21, the junction of the gas outlet 13 and the output pipe 4 and the upper body 1a and institute
The junction of lower body 1b is stated, settable sealing element helps to improve survey to ensure the sufficiently sealed without revealing of junction
The accuracy of amount and the safety used.
The present invention also proposes a kind of method for altering oil measurement for engine, described to alter oil measurement for engine
For method based on the device for altering oil measurement for engine, Lai Shixian alters the accurate measurement of oil mass, described to be used for engine
Alter the method for oil measurement the following steps are included:
S10: the input pressure value and output pressure value of real-time acquisition device ontology 1；
S20: the pressure difference value of both the input pressure value and the output pressure value is determined；
S30: according to the pressure difference value, at the gas outlet 13 that described device ontology 1 is adjusted based on pressure compensator
Pressure value, so that the output pressure value and the input pressure value are suitable；
S40: control filter device 2 works and acquires oil liquid, obtains the oil liquid amount in preset time period.
Since the design is provided with the filter device 2 on described device ontology 1, this makes the resistance in the cavity 11
Power increases and gas-liquid flow is reduced, and leading to measurement result, due to not meeting actual flow situation therefore accuracy is altering oil
Before measurement work starts, it is necessary first to be compensated to the pressure of described device ontology 1, to realize described device balance
Pressure balance.Specifically, it can wait some time that the gas-liquid in described device ontology 1 is circulated first to stablize, then again
The input pressure value and the output pressure value are obtained by sensor device；As described above, when described device ontology 1 is provided with
When first pressure sensor 31 and third pressure sensor 33, the difference for the pressure value that the two measures can be calculated, is mended as theory
The amount of repaying, and control the vacuum pump component and compensate；And when described device ontology 1 is provided with first pressure sensor 31, the
When two pressure sensors 32 and third pressure sensor 33, the first pressure sensor 31 and the second pressure can be calculated
The difference for the pressure value that sensor 32 measures controls the vacuum pump component and compensates as real-time compensation amount, and can be from institute
The measurement feedback for stating third pressure sensor 33 goes out compensation effect.After the completion of pressure compensation, the filtering can control to fill
2 work are set, oil liquid is isolated and are acquired, by weighing the oil liquid amount increment in preset time period, can be obtained the hair
Motivation alters the accurate result of oil mass.
Specifically, in the present embodiment, the step S10 includes:
S11: regulating three-way valve 6, so that gas-liquid enters from the feed inlet 12 of described device ontology 1, through bypass branch
Road 5, and exported from the gas outlet of described device ontology 1 13, after continuing the T1 time, obtained based on first pressure sensor 31 described
Input pressure value；
S12: regulating three-way valve 6, so that gas-liquid enters from the feed inlet 12 of described device ontology 1, through the cavity 11,
And exported from the gas outlet of described device ontology 1 13, after continuing the T2 time, the output is obtained based on third pressure sensor 33
Pressure value.
It should be noted that the opening and closing of the triple valve 6, can be manually operated by operator and be realized or by special
The control switch element of setting be independently controlled realize, again alternatively, can be as in the present embodiment, the controller 35 is electrically
The triple valve 6 is connected, under the control of the controller 35, the triple valve 6 has so that gas-liquid is from the feed inlet 12
Into, through the bypass branch 5, and from the gas outlet 13 export circulation path and make gas-liquid from the feed inlet
12 enter, through the cavity 11, and the measuring route exported from the gas outlet 13.By being not provided with institute in the circulation path
Filter device 2 is stated, namely there is no the factors that interference gas-liquid normally circulates, after gas-liquid circulates the T1 time, flow velocity tends towards stability,
The pressure value measured at this time by the first pressure sensor 31, the as higher input pressure value of accuracy；Then
It closes the circulation path and opens the measuring route, similarly, after gas-liquid circulates the T2 time, flow velocity tends towards stability, this
When the pressure value that is measured by the third pressure sensor 33, the as higher output pressure value of accuracy.Wherein, institute
Stating T1 and the T2 can adjust accordingly according to practical application, also, the T1 and the T2 can be set to it is identical, or
Person is set as different, in the design with no restriction.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of device for altering oil measurement for engine characterized by comprising
Device noumenon, described device ontology are formed with cavity, and the cavity offers feed inlet and gas outlet, sets in the cavity
There is filter device, so that gas-liquid enters from the feed inlet, is separated into gas and oil liquid after filter device effect, and supply
The gas is exported from the gas outlet；And
Pressure compensator is set to described device ontology, for adjusting the pressure value of described device ontology, so that described device
The output pressure value of ontology is suitable with input pressure value.
2. the device of oil measurement is altered for engine as described in claim 1, which is characterized in that the filter device packet
It includes:
One end sealing of gas-liquid channel, the gas-liquid channel is connected to the feed inlet, and the other end is connected to the gas outlet；And
First filter assemblies and the second filter assemblies, first filter assemblies and the second filter assemblies are between gas-liquid circulating direction
Every being laid in the gas-liquid channel, for the oil liquid in second interception gas-liquid.
3. the device of oil measurement is altered for engine as claimed in claim 2, which is characterized in that first filter assemblies
Including an at least filter paper for oil, the filter paper for oil is inclined to set relative to the radial truncation surface of the gas-liquid channel；And/or
Second filter assemblies include an at least filter paper for oil, radial direction truncation of the filter paper for oil relative to the gas-liquid channel
Face is inclined to set.
4. the device of oil measurement is altered for engine as claimed in claim 2, which is characterized in that described device ontology is one
It is transparent to alter oil bottle, and the transparent setting of the gas-liquid channel.
5. the device of oil measurement is altered for engine as described in claim 1, which is characterized in that the cavity is also provided with
Oil outlet；
Described device ontology includes interconnected from top to bottom upper body and lower body, the upper body and the lower body two
Person is detachably connected, and the gas outlet is set to the upper body, and the oil outlet is set to the lower body.
6. the device of oil measurement is altered for engine as described in claim 1, which is characterized in that described device ontology also wraps
A bypass branch is included, one end of the bypass branch is connected to the feed inlet, the other end of the bypass branch by triple valve
It is connected to the gas outlet.
7. the device of oil measurement is altered for engine as described in claim 1, which is characterized in that described device ontology also wraps
Output pipe is included, the arrival end of the output pipe is connected to the gas outlet；
The pressure compensator includes:
First pressure sensor is set to the feed inlet, for measuring the input pressure value；
Third pressure sensor, set on the outlet end of the output pipe, for measuring the output pressure value；
Vacuum pump component is set to the output pipe, for adjusting the air pressure size in the output pipe；And
The first pressure sensor, the third pressure sensor and the vacuum pump group is electrically connected in controller
Part realizes described device sheet to control the vacuum pump component operation according to the input pressure value and the output pressure value
The output pressure value of body is suitable with input pressure value.
8. the device of oil measurement is altered for engine as claimed in claim 7, which is characterized in that the pressure compensator
It further include second pressure sensor, the second pressure sensor is set to the gas outlet or the arrival end, for measuring
Delivery pressure force value；
The controller is electrically connected the second pressure sensor, according to the input pressure value, the delivery pressure force value
With the output pressure value, the vacuum pump component operation is controlled, realizes that the output pressure value of described device ontology and input are pressed
Force value is suitable.
9. a kind of method for altering oil measurement for engine, which comprises the following steps:
The input pressure value and output pressure value of real-time acquisition device ontology；
Determine the pressure difference value of both the input pressure value and the output pressure value；
According to the pressure difference value, the pressure value at the gas outlet of described device ontology is adjusted based on pressure compensator, so that
It obtains the output pressure value and the input pressure value is suitable；
Control filter device works and acquires oil liquid, obtains the oil liquid amount in preset time period.
10. the method that engine as claimed in claim 9 alters oil measurement, which is characterized in that the real-time acquisition device sheet
The step of input pressure value and output pressure value of body includes:
Regulating three-way valve, so that gas-liquid enters from the feed inlet of described device ontology, through the bypass branch, and from the dress
The gas outlet output for setting ontology after continuing the T1 time, obtains the input pressure value based on first pressure sensor；
Regulating three-way valve, so that gas-liquid enters from the feed inlet of described device ontology, through the cavity, and from described device sheet
The gas outlet of body exports, and after continuing the T2 time, obtains the output pressure value based on third pressure sensor.
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