CN207776931U - A kind of crankcase ventilation monitoring system and the vehicle with the system - Google Patents
A kind of crankcase ventilation monitoring system and the vehicle with the system Download PDFInfo
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- CN207776931U CN207776931U CN201721751184.0U CN201721751184U CN207776931U CN 207776931 U CN207776931 U CN 207776931U CN 201721751184 U CN201721751184 U CN 201721751184U CN 207776931 U CN207776931 U CN 207776931U
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- crankcase ventilation
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- pipe
- pressure sensor
- oil level
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- 238000009423 ventilation Methods 0.000 title claims abstract description 52
- 238000012544 monitoring process Methods 0.000 title claims abstract description 34
- 238000003745 diagnosis Methods 0.000 claims description 17
- 238000012360 testing method Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 abstract description 7
- 238000011161 development Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000011112 process operation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of crankcase ventilations to monitor system, including the connectedness in the oil level indicator pipe of cylinder block is arranged, it is connected to inside connectedness and cylinder block, connectedness is equipped with the pressure sensor for monitoring connectedness internal pressure, and pressure sensor is connect with electronic control system.Pressure sensor is arranged on the connectedness of oil level indicator pipe by crankcase ventilation monitoring system provided by the utility model, by realizing the induction to crankcase pressure to the induction of connectedness internal pressure, to realize the monitoring to crankcase ventilation situation.The application is without redesign and Central Hole of Cylinder Bolts body, and oil level indicator pipe is detachable relative to cylinder block and can carry out the adjustment of adaptability, thus haves no need to change the agent structure of engine, and process operation is simple, the manufacturing cycle is short and development cost are relatively low.The invention also discloses a kind of vehicles monitoring system including above-mentioned crankcase ventilation.
Description
Technical field
The utility model is related to engine design fields, and system is monitored more specifically to a kind of crankcase ventilation
System.In addition, the utility model further relates to a kind of vehicle including above-mentioned crankcase ventilation monitoring system.
Background technology
Any gas in diesel engine crankshaft case does not allow to be directly discharged into air, therefore forces crankcase using enclosed
Ventilating system.It is useless in crankcase if Pcv valve blocking or failure, air pipeline are blocked or disconnected if ventilating system breaks down
Gas and combustion mixture can not return to inlet manifold and participate in burning again, be unfavorable for the economy and emission performance index of engine,
Harmful gas blowby stays can also cause parts burn into accelerate abrasion within the engine, so as to shorten engine life, therefore monitor
Crankcase ventilation system whether working properly is very necessary.
Currently, being mainly to carry out pressure to valve chamber cover or cylinder body for the monitoring method of crankcase ventilation system
Monitoring.However, existing monitoring method needs to change valve chamber cover on the basis of engine or the structure of cylinder body is come in fact
It is existing, not only processing difficulties, the manufacturing cycle is longer and development cost is higher.
It is that current those skilled in the art urgently solve in conclusion how to provide a kind of crankcase convenient for pressure monitoring
Certainly the problem of.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of crankcase ventilation monitoring system, crankcase ventilation prison
Examining system can conveniently accurately be monitored crankcase inner ventilation situation.
The another object of the utility model is to provide a kind of vehicle including above-mentioned crankcase ventilation monitoring system.
To achieve the goals above, the utility model provides the following technical solutions：
A kind of crankcase ventilation monitors system, including the connectedness being arranged in the oil level indicator pipe of cylinder block, the connection
It is connected to inside part and the cylinder block, the connectedness is equipped with the pressure sensing for monitoring the connectedness internal pressure
Device, the pressure sensor are connect with electronic control system.
Preferably, the pressure sensor is connect with the on-board automatic diagnosis system of the electronic control system, when described
When internal pressure exceeds the pressure preset range being arranged in the electronic control system, the on-board automatic diagnosis system is reported
It is alert.
Preferably, the connectedness is equipped with is detachably connected portion for being removably connected in the oil level indicator pipe.
Preferably, the portion of being detachably connected is by screwing the threaded joints being locked in the oil level indicator pipe.
Preferably, the connectedness is three-way pipe, and the oil level indicator pipe includes two sectional pipes, and a sectional pipe connects
Connect first interface of the cylinder block and the three-way pipe, another described sectional pipe connect the three-way pipe second connects
Mouthful, the third interface of the three-way pipe is equipped with the pressure sensor.
Preferably, the third interface connecting detection chamber, the test chamber is interior to be equipped with the pressure sensor, the inspection
The end for surveying chamber is equipped with the end cap for being used for closure.
Preferably, the three-way pipe is connected to one end close to the cylinder block in the oil level indicator pipe.
Preferably, the electronic control system or the pressure sensor connect the numerical value for showing the internal pressure
Display device.
A kind of vehicle, including crankcase ventilation monitor system, and the crankcase ventilation monitoring system is any of the above-described institute
The crankcase ventilation monitoring system stated.
Pressure sensor is arranged in the connectedness of oil level indicator pipe by crankcase ventilation monitoring system provided by the utility model
On, by realizing the induction to crankcase pressure to the induction of connectedness internal pressure, to realize to crankcase ventilation feelings
The monitoring of condition.
Compared to rising in the prior art for the mode that cylinder block is transformed, the application is without redesigning and processing vapour
Cylinder body will be arranged in for realizing the pressure sensor of monitoring function in oil level indicator pipe, and oil level indicator pipe is common on cylinder block
Structure, oil level indicator pipe is detachable relative to cylinder block and can carry out the adjustment of adaptability, thus haves no need to change engine
Agent structure, process operation is simple, the manufacturing cycle is short and development cost are relatively low.
The utility model additionally provides a kind of vehicle including above-mentioned crankcase ventilation monitoring system, which is designed to
This is low, has preferable applicability.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the schematic diagram that a kind of crankcase ventilation provided by the utility model monitors system.
In Fig. 1：
Oil level indicator pipe 1, pressure sensor 2, connectedness 3, cylinder block 4.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The core of the utility model is to provide a kind of crankcase ventilation monitoring system, which monitors system can
It is convenient that accurately crankcase inner ventilation situation is monitored.
Another core of the utility model is to provide a kind of vehicle including above-mentioned crankcase ventilation monitoring system.
Referring to FIG. 1, Fig. 1 is the schematic diagram that a kind of crankcase ventilation provided by the utility model monitors system.
A kind of crankcase ventilation provided by the utility model monitors system, is mainly used for monitoring the ventilation shape of crankcase
State, the system include mainly the connectedness 3 being arranged in the oil level indicator pipe 1 of cylinder block 4, are connected inside connectedness 3 and cylinder block 4
Logical, connectedness 3 is equipped with the pressure sensor 2 for monitoring 3 internal pressure of connectedness, and pressure sensor 2 is with electronic control
System connection.
It should be noted that oil level indicator pipe 1 is generally arranged on cylinder block 4, that is, is arranged on the shell of crankcase,
Oil level indicator pipe 1 needs to be inserted into oil scale when using, and is communicated inside oil level indicator pipe 1 and crankcase, and air pressure having the same.Connection
Part 3 is the component being arranged in oil level indicator pipe 1, and is connected with oil level indicator pipe 1, it is internal have communicated with oil level indicator pipe 1
Air pressure.Pressure sensor 2 for detecting 3 internal pressure of connectedness is set on connectedness 3, and pressure sensor 2 can be more
The pressure sensor device of type.Pressure sensor 2 is connect with the electronic control system of vehicle, it should be noted that pressure passes
The information such as the pressure value sensed can be sent to electronic control unit by sensor 2, or by electronic control unit to above-mentioned letter
Breath carries out active obtaining, so as to make electronic control unit understand the ventilation situation in crankcase.
It should be noted that above-mentioned electronic control unit can be the ECU systems of vehicle, or it is common electronic control
Device, the main purpose of electronic control unit is to get the induction information of pressure sensor 2, so as to realize the information
It is shown to user or carries out further crankcase diagnosis and malfunction elimination work.
Pressure sensor 2 is arranged in the company of oil level indicator pipe 1 by crankcase ventilation monitoring system provided by the utility model
In parts 3, by realizing the induction to crankcase pressure to the induction of 3 internal pressure of connectedness, to realize to crankcase
The monitoring for situation of divulging information.
Compared to rising in the prior art for the mode that cylinder block 4 is transformed, the application is without redesigning and processing
Cylinder block 4 will be arranged in for realizing the pressure sensor 2 of monitoring function in oil level indicator pipe 1, and oil level indicator pipe 1 is on cylinder block 4
Common structure, oil level indicator pipe 1 is detachable relative to cylinder block 4 and can carry out the adjustment of adaptability, thus haves no need to change
The agent structure of engine, process operation is simple, the manufacturing cycle is short and development cost are relatively low.
On the basis of above-described embodiment, the mounted automatic diagnosis system of above-mentioned pressure sensor 2 and electronic control system
System connection, when internal pressure is beyond the pressure preset range being arranged in electronic control system, on-board automatic diagnosis system carries out
Alarm.
It should be noted that the on-board automatic diagnosis system (OBD) of vehicle is common one of the fault diagnosis system of vehicle,
Engine running condition can be monitored at any time, and carries out the operations such as fault diagnosis and alarm.On-board automatic diagnosis system is logical
Cross the internal pressure that connectedness 3 is obtained by electronic control system, to obtain crankcase air pressure inside, therefore can to whether
Failure is judged.
Air pressure normal value model in crankcase can be stored or inputted in any embodiment, in the electronic control system of vehicle
It encloses, above-mentioned range of normal value can be sent to on-board automatic diagnosis system, electronic control system or vehicle by electronic control system
Carrying auto-check system can be compared for above-mentioned preset range of normal value with 3 internal pressure of connectedness of acquisition, when
When above-mentioned internal pressure exceeds range of normal value, it can be determined that be malfunction, and alarmed by on-board automatic diagnosis system
Or subsequent diagnosis.
It should be noted that above-mentioned follow-up diagnosis includes whether on-board automatic diagnosis system investigation crankcase ventilation pipeline goes out
Whether now disconnection, blocking and Pcv valve block, fail, and the above process can be manually completed by personnel, can also be by vehicle-mounted
Self-diagnosable system is completed.
On the basis of above-mentioned any embodiment, connectedness 3 is equipped with for being removably connected in oil level indicator pipe 1
It is detachably connected portion.Optionally, connectedness 3 can be fixed by modes such as clamping, riveting, bolts.
Optionally, the portion of being detachably connected is by screwing the threaded joints being locked in oil level indicator pipe 1.That is,
Screw thread is provided on connectedness 3, oil level indicator pipe 1 is equipped with matched matching thread, and connectedness 3, which screws, is connected to oil scale
On pipe 1, the tightness degree of both on the one hand above-mentioned connection type can be promoted connection, on the one hand so that the detachability of connection obtains
To ensure, when needing to carry out local replacing, it is only necessary to can be realized by torquing operations.Optionally, above-mentioned to be detachably connected
Portion can also be the structures such as clamping interconnecting piece.
Optionally, gasket can be arranged between dividing in above-mentioned connectedness 3 and the threaded joints of oil level indicator pipe 1 or other are close
Seal structure, to enhance the accuracy of measurement of the pressure sensor 2 on connectedness 3.
On the basis of above-described embodiment, connectedness 3 can be three-way pipe, oil level indicator pipe 1 include two sectional pipes, one
First interface of a sectional pipe connection cylinder block 4 and three-way pipe, second interface of another sectional pipe connection three-way pipe, three
The third interface of siphunculus is equipped with pressure sensor 2.
It should be noted that the oil level indicator pipe 1 in the present embodiment is 2-section pipe, first segment pipe is connect with cylinder block 4, second
Section pipe passes through the connection of threeway realization and first segment, and two interfaces of three-way pipe are separately connected above-mentioned first segment pipe and the second section
It manages, pressure sensor 2 is set on third interface, it should be noted that the end of above-mentioned third interface needs to be sealed.
Optionally, the link position in oil level indicator pipe 1 and cylinder block 4 can also be arranged in connectedness 3, that is to say, that threeway
The first interface of pipe is connected on the oil ga(u)ge mouth of cylinder block 4, and second interface connects oil level indicator pipe 1, is provided on third interface
Above-mentioned pressure sensor 2.
It should be noted that the connectedness 3 (three-way pipe) in the application needs for sealing element, except being connect with oil level indicator pipe 1
Outside, it is not attached with air, thus the actual pressure in cylinder block 4 can be reacted.
In order to facilitate the setting of pressure sensor 2, on the basis of above-described embodiment, third interface connecting detection
Chamber, test chamber is interior to be equipped with pressure sensor 2, and the end of test chamber is equipped with the end cap for closure.
It should be noted that since three-way pipe inner space is limited, in order to facilitate the setting of pressure sensor 2, in threeway
Connecting detection chamber on pipe, to expand the placement space of pressure sensor 2.Optionally, above-mentioned test chamber can be tube body or
For other structures shape and with intracavity device feature.
On the basis of any one above-mentioned embodiment, three-way pipe is connected in oil level indicator pipe 1 close to the one of cylinder block 4
End.
Optionally, the other positions in oil level indicator pipe 1 can be arranged in above-mentioned three-way pipe or above-mentioned connectedness 3, it is only necessary to
It keeps and the connection inside oil level indicator pipe 1.
On the basis of any one above-mentioned embodiment, electronic control system or the connection of pressure sensor 2 are for showing
The display device of the numerical value of internal pressure.Display device can be digital display device, display screen or be instrument board.
In a specific embodiment provided by the utility model, one is inputted in the electronic control system ECU of vehicle
A pressure calibration value, the i.e. normal pressure value of crankcase ventilation system.Illustrate to pass when on-board automatic diagnosis system OBD is without alarm
The crankcase pressure value that sensor monitors is in normal range (NR), that is, crankcase ventilation system is working properly.When vehicle-mounted automatic
When diagnostic system OBD alarms, illustrate pressure value that Sensor monitoring arrives not in normal range (NR), that is, crankcase ventilation
There is exception in system, should investigate crankcase ventilation pipeline immediately and whether occur whether disconnection, blocking and Pcv valve block, lose
Effect.This scheme can realize the constantly monitoring to crankcase ventilation system under all operating modes of engine.
In addition to the crankcase ventilation in any one above-mentioned embodiment monitors the primary structure and connection relation of system, this reality
A kind of engine and vehicle monitoring system including crankcase ventilation disclosed in above-described embodiment, the engine are also provided with novel
Crankcase on be provided with above-mentioned crankcase ventilation monitoring system, which includes above-mentioned engine or above-mentioned crankcase ventilation prison
Refer to the prior art for the structure of other each sections of examining system, the engine and vehicle, and repeats no more herein.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The vehicle to crankcase ventilation provided by the utility model monitoring system and with the system has carried out in detail above
It is thin to introduce.Specific case used herein is expounded the principles of the present invention and embodiment, above example
Explanation be merely used to help understand the method and its core concept of the utility model.It should be pointed out that for the art
For those of ordinary skill, without departing from the principle of this utility model, several change can also be carried out to the utility model
Into and modification, modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (9)
1. a kind of crankcase ventilation monitors system, which is characterized in that including being arranged in the oil level indicator pipe (1) of cylinder block (4)
It is connected to inside connectedness (3), the connectedness (3) and the cylinder block (4), the connectedness (3) is equipped with for monitoring
The pressure sensor (2) of connectedness (3) internal pressure is stated, the pressure sensor (2) connect with electronic control system.
2. crankcase ventilation according to claim 1 monitors system, which is characterized in that the pressure sensor (2) and institute
The on-board automatic diagnosis system connection for stating electronic control system, is arranged when the internal pressure exceeds in the electronic control system
Pressure preset range when, the on-board automatic diagnosis system is alarmed.
3. crankcase ventilation according to claim 1 monitors system, which is characterized in that the connectedness (3) is equipped with and is used for
It is removably connected in the oil level indicator pipe (1) and is detachably connected portion.
4. crankcase ventilation according to claim 3 monitors system, which is characterized in that the portion of being detachably connected is to pass through
Screw the threaded joints being locked in the oil level indicator pipe (1).
5. crankcase ventilation according to any one of claims 1 to 4 monitors system, which is characterized in that the connectedness (3)
For three-way pipe, the oil level indicator pipe (1) includes two sectional pipes, and a sectional pipe connects the cylinder block (4) and described
First interface of three-way pipe, another described sectional pipe connect second interface of the three-way pipe, and the of the three-way pipe
Three interfaces are equipped with the pressure sensor (2).
6. crankcase ventilation according to claim 5 monitors system, which is characterized in that the third interface connecting detection
Chamber, the test chamber is interior to be equipped with the pressure sensor (2), and the end of the test chamber is equipped with the end cap for closure.
7. crankcase ventilation according to claim 5 monitors system, which is characterized in that the three-way pipe is connected to the oil
Close to one end of the cylinder block (4) on staff gauge pipe (1).
8. crankcase ventilation according to claim 5 monitors system, which is characterized in that the electronic control system is described
The display device of numerical value of pressure sensor (2) connection for showing the internal pressure.
9. a kind of vehicle, including crankcase ventilation monitor system, which is characterized in that the crankcase ventilation monitoring system is right
It is required that 1 to 8 any one of them crankcase ventilation monitors system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721751184.0U CN207776931U (en) | 2017-12-14 | 2017-12-14 | A kind of crankcase ventilation monitoring system and the vehicle with the system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721751184.0U CN207776931U (en) | 2017-12-14 | 2017-12-14 | A kind of crankcase ventilation monitoring system and the vehicle with the system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207776931U true CN207776931U (en) | 2018-08-28 |
Family
ID=63232347
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721751184.0U Active CN207776931U (en) | 2017-12-14 | 2017-12-14 | A kind of crankcase ventilation monitoring system and the vehicle with the system |
Country Status (1)
| Country | Link |
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| CN (1) | CN207776931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646209A (en) * | 2019-09-25 | 2020-01-03 | 一汽解放汽车有限公司 | Closed crankcase ventilation system OBD detection device |
-
2017
- 2017-12-14 CN CN201721751184.0U patent/CN207776931U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646209A (en) * | 2019-09-25 | 2020-01-03 | 一汽解放汽车有限公司 | Closed crankcase ventilation system OBD detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181217 Address after: 102206 Beijing Changping District Shahe town Shayang Road, Niu Niu Wan Village North Patentee after: BEIQI FOTON MOTOR Co.,Ltd. Address before: 100102 No.1 Courtyard Building, Futong East Street, Chaoyang District, Beijing Patentee before: Borgward Automotive (China) Co., Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhucheng Futian International Trade Co.,Ltd. Assignor: BEIQI FOTON MOTOR Co.,Ltd. Contract record no.: X2023980043791 Denomination of utility model: A crankcase ventilation monitoring system and a vehicle equipped with the system Granted publication date: 20180828 License type: Common License Record date: 20231018 |