CN208330501U - A kind of device cleaning automobile three-way catalysts automatically with vehicle - Google Patents
A kind of device cleaning automobile three-way catalysts automatically with vehicle Download PDFInfo
- Publication number
- CN208330501U CN208330501U CN201820943981.7U CN201820943981U CN208330501U CN 208330501 U CN208330501 U CN 208330501U CN 201820943981 U CN201820943981 U CN 201820943981U CN 208330501 U CN208330501 U CN 208330501U
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- cleaning agent
- cleaning
- vehicle
- automobile
- automatically
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The utility model relates to a kind of devices for cleaning automobile three-way catalysts automatically with vehicle, belong to vehicle maintenance, maintenance and tail gas disposal technique field.It includes a cleaning agent intake line, a cleaning agent oil return line, a cleaning agent liquid level alarm device and a cleaning agent flow control circuit；The oil inlet pipe of electric fuel punp in one end connection cleaning agent fluid reservoir of cleaning agent intake line, the interface of the other end connection engine air inlet tube of cleaning agent intake line；Cleaning agent oil return line one end connects pressure regulator, the oil return pipe of the other end connection electric fuel punp of cleaning agent oil return line.The utility model environmental protection and energy saving, structure, which are simple and convenient to operate, reduce cost realizes and cleans ternary catalyzing unit automatically with vehicle.
Description
Technical field
The utility model relates to a kind of devices for cleaning automobile three-way catalysts automatically with vehicle, belong to vehicle maintenance, maintenance
With tail gas disposal technique field.
Background technique
As understanding of the people to the pollution of automobile engine is gradually deepened and attention degree constantly enhances, to motor vehicle emission
Standard is also increasingly stringenter, and European countries were in release Europe V standard in 2009, and China also implemented in full state's V automobile in 2018
Discharge standard.Discharge pollutants mainly CO, HC and NO of automobile (gasoline engine)x, and three-element catalytic is exactly by above automobile
Exhaust pollutant is transformed into CO by oxidation and reductionx、H2O and N2Catalysis.Three-element catalytic reaction is mainly used in automobile
In ternary catalyzing unit.
Automobile three-way catalysts are the outer exhaust gas cleaners of most important machine in automobile exhaust system, are generally mounted in vapour
On vehicle exhaust pipe, it is located at before muffler and after preceding lambda sensor.The carrier of ternary catalyzing unit is one piece of porous ceramic film material, is being carried
The noble metals such as one layer of platinum, rhodium, palladium are coated with above body, participate in three-element catalytic effect is exactly these noble metals.Existing ternary is urged
The various reactants that vehicle exhaust is left can be accumulated in use for some time, on poroid material by changing device, these reactants are main
It is one layer of sulphur, phosphorus, the zinc-manganese chemical complex formed by sulphur, phosphorus, zinc, the manganese contained in gasoline on catalyst converter surface, slowly
Accumulation will block carrier, and delivery temperature can increase, and influence ternary catalyzing unit (optimum working temperature 400~800) normal work,
Automobile exhaust back pressure can be increased simultaneously, influences the unlatching of exhaust valve.
The prior art is generally by manual cleaning method, at present there are mainly two types of manual cleaning methods: first is that " unpicking and washing "
Exactly whole section of ternary catalyzing unit is removed to be placed in ternary catalyzing unit scavenger specially and heats soaking and washing；Second is that " beating transfusion bottle " is just
It is that cleaning agent sucking is passed through combustion chambers burn from exhaust valve by the pull of vacuum that air inlet pipe is connected by drop bottle by air inlet pipe again
Discharge cleans ternary catalyzing unit by ternary catalyzing unit.Both the above mode is all cleaning agent and ternary at a certain temperature
The covering on catalyst converter surface chemically reacts, to reach cleaning cleaning purpose.Unpick and wash mode time-consuming and cost of labor
It is higher, it beats transfusion bottle mode and although exempts to tear open but need for automobile engine to be in idling mode, therefore consume motor vehicle fuel, not ring
Protect, time-consuming and high labor cost, secondly the flow of cleaning agent should not control, completely by artificial control handle artificial by rule of thumb to
Reach control flow purpose, does not pay attention to slightly may cause the major break down for embracing cylinder, stifled cylinder.
Utility model content
In view of the above problems, the utility model main purpose is to propose that one kind cleans automobile three-way catalysts with vehicle automatically
Device technical solution.The program use closed-loop automatic control, according to the tach signal of engine determine engine start and stop and
Throttle position (throttle opening) controls the input of cleaning agent；Simultaneously using liquid level sensor monitoring cleaning agent capacity from
And reaches liquid level warning, automatically cut off gasoline switch pump and remind the purpose of user's filling cleaning agent；It is sensed again according to mileage
The detection data real-time display mileage number of device automatically turns on solenoid valve cleaning when mileage number is equal to cleaning mileage number；The finally list
Piece machine has timer that cleaning duration can manually be arranged, and when vehicle is when not up to cleaning duration is stopped, timer can store this
When scavenging period, after automobile is again started up, cleaning procedure can start automatically.To ensure that ternary catalytic device for engine
Cleaning quality, avoid that engine embraces cylinder, stifled cylinder accident occurs, while with vehicle cleaning environmental protection and energy saving.
The utility model in order to achieve the above technical purposes, adopts the following technical scheme that
A kind of device cleaning automobile three-way catalysts automatically with vehicle, it includes a cleaning agent intake line, and one clear
Lotion oil return line, a cleaning agent liquid level alarm device and a cleaning agent flow control circuit；
The oil inlet pipe of electric fuel punp, cleaning agent input pipe in one end connection cleaning agent fluid reservoir of cleaning agent intake line
The interface of the other end connection engine air inlet tube on road；
Cleaning agent oil return line one end connects pressure regulator, and the other end of cleaning agent oil return line connects electric fuel punp
Oil return pipe.
Further, liquid level alarm device includes a liquid level sensor, alarm lamp and electric fuel punp breaker,
When liquid level is lower than limit value, liquid level sensor obtains signal and judges that providing instruction alarm lamp lights, and leads to simultaneously through single-chip microcontroller
The power supply for crossing electric fuel punp circuit breaker trip electric fuel punp stops the work of fuel pump.
Further, further include odometer sensor, speed probe and throttle position sensor, and with cleaning agent stream
Amount control circuit connection；
Judge that cleaning mileage number, speed probe monitor automobile start and stop situation using odometer sensor, throttle position passes
The service time of sensor control cleaning agent flow controller.
It further, include a single-chip microcontroller in the cleaning agent flow control circuit, single-chip microcontroller contains turnable pulse width/arteries and veins
Frequency delivery outlet: PWM and multiple data input/output ports: D0、D1、D2、D3、D4、D4、D5、D6、D7, P0、P1；
Single-chip microcontroller is provided with LCD driver and LCD display, LCD display passes through driver LCD driver and list
The data output of piece machine connects, key when scavenging period setting key is added-time key and subtracts, added-time key and key and single-chip microcontroller when subtracting
Data input port connection.
Further, the upper end of cleaning agent fluid reservoir is provided with liquid injection port and exhaust outlet.It is set on cleaning agent intake line
It is equipped with filter.
Further, cleaning agent flow control circuit is connected by solenoid valve and fuel injector, fuel injector and engine air inlet tube
It connects.
Its control method: when liquid level is lower than limit value, liquid level sensor obtains signal and provides instruction report through single-chip microcontroller judgement
Alert indicator light lights, while passing through the power supply of electric fuel punp circuit breaker trip electric fuel punp, stops the work of electric fuel punp
Make；
Control method described in cleaning agent flow control circuit is: first having to one air throttle maximum opening of setting and minimum
Aperture voltage range 0.5-4.5V, the voltage value of throttle position sensor are 0-5V；When throttle sensor voltage is in target
When section, it is 10.5 grams of ± 0.5 gram/minutes that cleaning agent flow control circuit, which is in closed state while opening flow, not in mesh
Section is marked, control circuit is in an off state；By above-mentioned air throttle maximum opening and minimum aperture voltage and corresponding
Flow status data are deposited in the memory of cleaning agent flow control circuit, wherein it is described open flow be 10.5 grams ±
Corresponding 0.5 gram/minute is cleaning agent flow control circuit control fuel injection pulsewidth: injection time；
The engine charge interface tube of pipeline is accessed into automotive air intake pipe, starting engine step is as follows:
Step 1: cleaning agent flow control circuit judges cleaning agent liquid level feelings from the liquid level sensor in cleaning agent fluid reservoir
Condition is ready for the work of electric fuel oil pump startup；
Step 2: cleaning agent flow control circuit obtains signal from odometer sensor, judges whether speedometer for automobile number is in clearly
It washes in target mileage number；
Step 3: cleaning agent flow control circuit obtains signal from speed probe, judges automobile engine start and stop situation；
Step 4: not reaching target value when the signal of liquid level sensor, odometer sensor and speed probe is any, then
Judgement does not start electric fuel oil pump work at this time, when liquid level sensor, odometer sensor and speed probe are all in target
Value determines starting electric fuel oil pump work；
Step 5: when electric fuel oil pump work, cleaning agent flow control circuit reads one from throttle position sensor
Aperture voltage value；
Step 6: judging throttle opening voltage value whether in set aperture voltage region；
Step 7: judging result then exports controlling value to cleaning agent stream from cleaning agent flow control circuit interface in section
Amount controller guarantees that fuel injector is in and opens flow as 10.5 grams of ± 0.5 gram/minute states.
Step 8: judging result then exports controlling value to cleaning agent from cleaning agent flow control circuit interface not in section
Flow controller guarantees that fuel injector is in an off state.
Further, the maximum opening voltage of the throttle position sensor is 4.5V, and minimum aperture voltage is
When 0.5V, voltage value < 0.5V of throttle position sensor, cleaning agent electromagnetic flow control device shutdown, when throttle position passes
When voltage value > 4.5V of sensor, the shutdown of cleaning agent electromagnetic flow control device.
The utility model has following substantive distinguishing features and progress compared with the existing technology:
The closed-loop automatic control of cleaning agent influx and throttle opening may be implemented in the utility model, ensure that engine
The cleaning quality of ternary catalyzing unit avoids engine and embraces cylinder, stifled cylinder accident generation；When speedometer for automobile number is in target mileage number
It is interior, start cleaning procedure automatically；It can be taking human as setting scavenging period by I/O input/output interface；Automatic liquid level alarm, thus
Stop cleaning procedure and user is reminded to fill cleaning agent；Environmental protection and energy saving, structure are simple and convenient to operate, reduce cost realization with vehicle
Automatic cleaning ternary catalyzing unit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the utility model electric control principle schematic diagram；
Fig. 3 is the schematic diagram of the utility model cleaning agent flow controller.
Specific embodiment
The utility model is described further with specific implementation with reference to the accompanying drawing, so that those skilled in the art
The utility model may be better understood and can be practiced, but lift implementation not as the restriction to the utility model.
A kind of device cleaning automobile three-way catalysts automatically with vehicle, it includes a cleaning agent intake line 1, and one clear
2, cleaning agent liquid level alarm devices of lotion oil return line and a cleaning agent flow control circuit 4；
The oil inlet pipe of electric fuel punp 6, cleaning agent are defeated in one end connection cleaning agent fluid reservoir 5 of cleaning agent intake line 1
Enter the interface of the other end connection engine air inlet tube 7 of pipeline 1；
2 one end of cleaning agent oil return line connects pressure regulator 8, and the other end of cleaning agent oil return line 2 connects electronic combustion
The oil return pipe of oil pump 6.
Cleaning agent is extracted out by electric fuel punp, and the pressure of 2.5bar~3.0bar is generated in pipeline, and centre is successively passed through
Filter, fuel injector, fuel injector use automobile electrically-controlled atomizer, and model STN99 can produce 10.5 grams of ± 0.5 gram/minutes
Injection flow；It is 1L/ minutes that electric fuel punp, which extracts rate, and the model HEP02A of this implementation can be purchased on the market；It returns
Oil pipe line one end connects pressure regulator, and the other end connects the oil return pipe of electric fuel punp, when the oil pressure that main oil pipe generates is greater than
When 3.5bar, pressure regulator can automatically open pressure release, be returned in cleaning agent fluid reservoir by oil return line, to maintain main oil
Road cleaning agent pressure is in 3bar or so, it is ensured that the normal work of electric fuel punp and suitable cleaning agent atomized spray pressure.
Cleaning agent liquid level alarm device and a set of cleaning agent flow control circuit, referring to fig. 2 with 3, liquid level alarm device
Including a liquid level sensor, alarm lamp, electric fuel punp breaker, when liquid level is lower than limit value, liquid level sensor is obtained
It obtains signal and provides the power supply for instructing alarm lamp to light, while passing through circuit breaker trip electric fuel punp through single-chip microcontroller judgement,
Stop the work of fuel pump.A set of cleaning agent flow control circuit includes a single-chip microcontroller, and single-chip microcontroller contains turnable pulse width/arteries and veins frequency
Delivery outlet (PWM) and multiple data input/output port (D0~D7, P0、P1), single-chip microcontroller can purchase 8 of market with memory
Single-chip microcontroller, 8 single-chip microcontrollers with 24K flash memory of the model STC125624 of this implementation, LCD driver model HT1621.
Liquid level alarm device includes a liquid level sensor 3, alarm lamp 9 and electric fuel punp breaker 10, works as liquid
Position is lower than limit value, and liquid level sensor 3 obtains signal and judges that providing instruction alarm lamp lights, and passes through simultaneously through single-chip microcontroller 11
Electric fuel punp breaker 10 cuts off the power supply of electric fuel punp 6, stops the work of fuel pump.
Further include odometer sensor 12, speed probe 13 and throttle position sensor 14 and with cleaning agent flux control
Circuit 4 processed connects；
Judge that cleaning mileage number, speed probe 13 monitor automobile start and stop situation, air throttle position using odometer sensor 12
Set the service time that sensor 14 controls cleaning agent flow controller 15.
It include a single-chip microcontroller 11 in the cleaning agent flow control circuit 4, single-chip microcontroller 11 is defeated containing turnable pulse width/arteries and veins frequency
Export 21:PWM and multiple data input/output ports: D0、D1、D2、D3、D4、D5、D6、D7, P0、P1；
Single-chip microcontroller 11 is provided with LCD driver 22 and LCD display 23, LCD display 23 is driven by driver LCD
Dynamic device 22 is connect with the data output of single-chip microcontroller 11, key 25 when scavenging period setting key is added-time key 24 and subtracts, added-time key 24
It is connect with key 25 when subtracting with the data input port of single-chip microcontroller 11.
The upper end of cleaning agent fluid reservoir 5 is provided with liquid injection port 16 and exhaust outlet 19；
Filter 20 is provided on cleaning agent intake line 1.
Cleaning agent flow control circuit 4 is connected by solenoid valve 17 and fuel injector 18, fuel injector 18 and engine air inlet tube 7
It connects.
When liquid level is lower than limit value, liquid level sensor 3 obtains signal and provides instruction alarm lamp 9 through the judgement of single-chip microcontroller 11
It lights, while cutting off the power supply of electric fuel punp 6 by electric fuel punp breaker 10, stop the work of electric fuel punp 6；
Control method described in cleaning agent flow control circuit 4 is: first having to setting one air throttle maximum opening and most
Small guide vane voltage range 0.5-4.5V, the voltage value of throttle position sensor 14 are 0-5V；When throttle sensor voltage exists
When target interval, it is 10.5 grams of ± 0.5 gram/minutes that cleaning agent flow control circuit 4, which is in closed state while opening flow, no
In target interval, control circuit is in an off state；Above-mentioned air throttle maximum opening and minimum aperture voltage and institute is right
The flow status data answered are deposited in the memory of cleaning agent flow control circuit 4, wherein the flow of opening is 10.5
Corresponding gram ± 0.5 gram/minute is that cleaning agent flow control circuit 4 controls fuel injection pulsewidth: injection time；
7 interface of engine air inlet tube of pipeline is accessed into automotive air intake pipe, starting engine step is as follows:
Step 1: cleaning agent flow control circuit 4 judges cleaning agent liquid level from the liquid level sensor 3 in cleaning agent fluid reservoir 5
Situation starts work for electric fuel punp 6 and is ready；
Step 2: cleaning agent flow control circuit 4 obtains signal from odometer sensor 12, judges whether speedometer for automobile number is located
In cleaning target mileage number；
Step 3: cleaning agent flow control circuit 4 obtains signal from speed probe 13, judges automobile engine start and stop feelings
Condition；
Step 4: not reaching target when the signal of liquid level sensor 3, odometer sensor 12 and speed probe 13 is any
Value then determines not starting the work of electric fuel punp 6 at this time, when liquid level sensor 3, odometer sensor 12 and speed probe 13
All in target value, determine that starting electric fuel punp 6 works；
Step 5: when electric fuel punp 6 works, cleaning agent flow control circuit 4 is read from throttle position sensor 14
One aperture voltage value；
Step 6: judging throttle opening voltage value whether in set aperture voltage region；
Step 7: judging result then exports controlling value to cleaning agent from 4 interface of cleaning agent flow control circuit in section
Flow controller 15 guarantees that fuel injector is in and opens flow as 10.5 grams of ± 0.5 gram/minute states.
Step 8: judging result then exports controlling value to cleaning from 4 interface of cleaning agent flow control circuit not in section
Agent flux controller 15 guarantees that fuel injector is in an off state.
The maximum opening voltage of the throttle position sensor 14 is 4.5V, and minimum aperture voltage is 0.5V, solar term
When voltage value < 0.5V of door position sensor 14, cleaning agent electromagnetic flow control device 15 is turned off, when throttle position sensor
When voltage value > 4.5V, cleaning agent electromagnetic flow control device 15 is turned off.
Cleaning agent electromagnetic flow control device in implementation, which opens flow, to be determined by the service time of fuel injector magnetic system.
The maximum opening of the throttle position sensor and minimum aperture voltage include multiple sections, due to throttle position sensing
The aperture and voltage of device are linear tables, therefore can be by concurrently setting when opening of controller between setting voltage region
Between.
Electronic fuel injection flow controller service time and the throttle position sensor voltage that this implementation signal is STN99
It is as shown in table 1 to be worth relation table.So as voltage value < 0.5V of throttle position sensor, cleaning agent electromagnetic flow control device is closed
It is disconnected, as voltage value > 4.5V of throttle position sensor, the shutdown of cleaning agent electromagnetic flow control device.
Table 1
The cleaning mileage number is as shown in table 2, and cleaning mileage number is divided into multiple clear from 4.5 ten thousand kilometers~43.5 ten thousand kilometers
Section is washed, when 10,000 kilometers of running car, ternary catalyzing unit needs to clean primary.
Table 2
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of device for cleaning automobile three-way catalysts automatically with vehicle, it is characterised in that: it includes a cleaning agent input pipe
Road (1), a cleaning agent oil return line (2), a cleaning agent liquid level alarm device and a cleaning agent flow control circuit
(4)；
The oil inlet pipe of one end connection cleaning agent fluid reservoir (5) interior electric fuel punp (6) of cleaning agent intake line (1), cleaning agent
The interface of other end connection engine air inlet tube (7) of intake line (1)；
Cleaning agent oil return line (2) one end connects pressure regulator (8), and the other end connection of cleaning agent oil return line (2) is electronic
The oil return pipe of fuel pump (6).
2. the device according to claim 1 for cleaning automobile three-way catalysts automatically with vehicle, it is characterised in that: liquid level warning
Device includes a liquid level sensor (3), alarm lamp (9) and electric fuel punp breaker (10), when liquid level is lower than restriction
Value, liquid level sensor (3) obtains signal and judges that providing instruction alarm lamp lights through single-chip microcontroller (11), while passing through electronic combustion
Oil pump breaker (10) cuts off the power supply of electric fuel punp (6), stops the work of fuel pump.
3. the device according to claim 1 for cleaning automobile three-way catalysts automatically with vehicle, it is characterised in that: in further including
Journey sensor (12), speed probe (13) and throttle position sensor (14) and with cleaning agent flow control circuit (4)
Connection；
Judge that cleaning mileage number, speed probe (13) monitor automobile start and stop situation, air throttle position using odometer sensor (12)
Set the service time of sensor (14) control cleaning agent flow controller (15).
4. the device according to claim 1 for cleaning automobile three-way catalysts automatically with vehicle, it is characterised in that: the cleaning
Include a single-chip microcontroller (11) in agent flux control circuit (4), single-chip microcontroller (11) contains turnable pulse width/arteries and veins frequency delivery outlet (21):
PWM and multiple data input/output ports: D0、D1、D2、D3、D4、D5、D6、D7, P0、P1；
Single-chip microcontroller (11) is provided with LCD driver (22) and LCD display (23), LCD display (23) passes through driver
LCD driver (22) is connect with the data output of single-chip microcontroller (11), key when scavenging period setting key is added-time key (24) and subtracts
(25), added-time key (24) and key (25) is connect with the data input port of single-chip microcontroller (11) when subtracting.
5. the device according to claim 1 for cleaning automobile three-way catalysts automatically with vehicle, it is characterised in that: in cleaning agent
The upper end of fluid reservoir (5) is provided with liquid injection port (16) and exhaust outlet (19)；Cleaning agent intake line is provided with filter on (1)
(20)。
6. the device according to claim 1 for cleaning automobile three-way catalysts automatically with vehicle, it is characterised in that: cleaning agent stream
Amount control circuit (4) is connect by solenoid valve (17) and fuel injector (18), fuel injector (18) with engine air inlet tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820943981.7U CN208330501U (en) | 2018-06-19 | 2018-06-19 | A kind of device cleaning automobile three-way catalysts automatically with vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820943981.7U CN208330501U (en) | 2018-06-19 | 2018-06-19 | A kind of device cleaning automobile three-way catalysts automatically with vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330501U true CN208330501U (en) | 2019-01-04 |
Family
ID=64771974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820943981.7U Expired - Fee Related CN208330501U (en) | 2018-06-19 | 2018-06-19 | A kind of device cleaning automobile three-way catalysts automatically with vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330501U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228216A (en) * | 2020-09-16 | 2021-01-15 | 广东机电职业技术学院 | Automatic cleaning device and method for automobile oil way and gas way |
| CN115680840A (en) * | 2022-12-29 | 2023-02-03 | 潍柴动力股份有限公司 | Automatic cleaning method and device for urea box |
-
2018
- 2018-06-19 CN CN201820943981.7U patent/CN208330501U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228216A (en) * | 2020-09-16 | 2021-01-15 | 广东机电职业技术学院 | Automatic cleaning device and method for automobile oil way and gas way |
| CN112228216B (en) * | 2020-09-16 | 2021-07-27 | 广东机电职业技术学院 | Automatic cleaning device and method for automobile oil way |
| CN115680840A (en) * | 2022-12-29 | 2023-02-03 | 潍柴动力股份有限公司 | Automatic cleaning method and device for urea box |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |