CN115306515A - DPF regeneration device based on combination of throttle control and honeycomb heater - Google Patents

DPF regeneration device based on combination of throttle control and honeycomb heater Download PDF

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Publication number
CN115306515A
CN115306515A CN202210953158.5A CN202210953158A CN115306515A CN 115306515 A CN115306515 A CN 115306515A CN 202210953158 A CN202210953158 A CN 202210953158A CN 115306515 A CN115306515 A CN 115306515A
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CN
China
Prior art keywords
filter element
honeycomb heater
regeneration device
engine
particle filter
Prior art date
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Pending
Application number
CN202210953158.5A
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Chinese (zh)
Inventor
向立明
苏继龙
李会利
焦运景
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Sanhe Keda Science & Technology Co ltd
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Sanhe Keda Science & Technology Co ltd
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Publication date
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Priority to CN202210953158.5A priority Critical patent/CN115306515A/en
Publication of CN115306515A publication Critical patent/CN115306515A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/027—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

The invention discloses a DPF regeneration device based on combination of throttle control and a honeycomb heater, which comprises an air filter, a regeneration device control unit, an engine air inlet pipe, an electric control throttle and an engine, wherein the air filter is communicated with the engine air inlet pipe, the electric control throttle is arranged in the middle of the engine air inlet pipe, the side end of the engine air inlet pipe is communicated with the engine, the side end of the engine is communicated with an engine exhaust pipe, the side end of the engine exhaust pipe is communicated with the honeycomb heater, a particulate filter element is arranged at the side end of the honeycomb heater, and a temperature sensor at the rear end of the particulate filter element and a pressure sensor at the rear end of the particulate filter element are arranged at the rear end of the particulate filter element. The invention relates to a DPF regeneration device based on combination of throttle control and a honeycomb heater, which achieves the purpose of inner-end waste gas treatment through structural arrangement.

Description

DPF regeneration device based on combination of throttle control and honeycomb heater
Technical Field
The invention relates to the technical field of diesel engine exhaust emission post-treatment, in particular to a DPF regeneration device based on the combination of throttle control and a honeycomb heater.
Background
The diesel engine has strong dynamic property, good economical efficiency and high thermal efficiency, and the diesel engine is widely used as a power device for commercial vehicles on roads and various construction machines on non-roads. The combustion mode of diesel engine mainly is diffusion combustion, and the oil atomizer erupts the oil mist in the combustion chamber, and its central part is difficult to the contact air, leads to incomplete combustion discharge a large amount of soot particulate matters, therefore the carbon particulate matter emission of diesel engine is very serious, pollutes atmospheric environment and people's is healthy. With the stricter and stricter national emission regulations, the emission limit value of the soot particulates of the diesel engine is lower and lower, the particulate filter (DPF) of the diesel engine collects more and more soot particulates, when the soot particulates in the DPF are accumulated to a certain degree, the exhaust back pressure of the diesel engine is too high, the dynamic property and the economical property are influenced, and the DPF must be regenerated. The DPF regeneration device based on the combination of throttle control and the honeycomb heater is adopted for the reason, the throttle is partially closed to generate rich mixed gas, engine exhaust passes through the honeycomb heater with a series of pore passages formed inside, diesel oil which is not completely combusted in the exhaust of the diesel engine is contacted with the high-temperature resistance wire to be combusted, high-temperature fuel gas is uniformly distributed after passing through the honeycomb heater, and the burning of a DPF filter element caused by the sharp rise of local temperature can be avoided.
Disclosure of Invention
The present invention is directed to a DPF regeneration device based on throttle control combined with a honeycomb heater to solve the problems of the background art mentioned above.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a DPF regeneration device based on throttle control and honeycomb heater combine together, includes air cleaner, regenerating unit the control unit, engine intake pipe, automatically controlled throttle and engine, air cleaner sets up with engine intake pipe intercommunication, the middle part of engine intake pipe is equipped with automatically controlled throttle, the side of engine intake pipe is linked together with the engine, the side intercommunication of engine has the engine blast pipe, the side intercommunication of engine blast pipe has the honeycomb heater, the side of honeycomb heater is equipped with the particulate filter core, particulate filter core rear end temperature sensor and particulate filter core rear end pressure sensor are installed to the rear end of particulate filter core, particulate filter core front end temperature sensor and particulate filter core front end pressure sensor are installed to the front end top of particulate filter core, particulate filter core front end temperature sensor, particulate filter core front end pressure sensor, particulate filter core rear end temperature sensor and particulate filter core rear end pressure sensor all communicate with regenerating unit the looks electrical property, regenerating unit the electrical property intercommunication has the air compressor, regenerating unit the control unit electrical property intercommunication has the solenoid valve, the battery electrical property has the honeycomb heater intercommunication.
Preferably, the honeycomb heater is arranged in a honeycomb net structure.
Preferably, the regeneration device control unit is in control communication with the honeycomb heater through a solenoid valve and a storage battery.
Preferably, the temperature sensor at the front end of the filter element of the particulate filter, the pressure sensor at the front end of the filter element of the particulate filter, the temperature sensor at the rear end of the filter element of the particulate filter and the pressure sensor at the rear end of the filter element of the particulate filter are all electrically communicated with the air compressor through the regeneration device control unit.
Preferably, the regeneration device control unit is in electrical communication with an electronically controlled throttle.
Preferably, the particle filter element and the honeycomb heater are distributed in a straight guide type arrangement mode.
A use method of a DPF regeneration device based on combination of throttle valve control and a honeycomb heater comprises the following steps:
s1, air is fed through an air filter, then the opening of an electric control throttle valve can be controlled through the adjustment of a control unit of a regeneration device, and gas is transmitted to the position of an air inlet pipe of the engine to the inner end of the engine and is driven to work through reaction;
s2, when the waste gas reaches the position of the honeycomb heater, the regeneration device control unit drives the honeycomb heater to control the start of the honeycomb heater through the electromagnetic valve and the storage battery, so that heating treatment is realized, and then the waste gas reaches the position of a filter element of the particulate filter;
s3, particulate filter core front end temperature sensor, particulate filter core front end pressure sensor carry out the sensing of data this moment, transmit to regenerating unit the control unit position department for regenerating unit the control unit is followed and is controlled the regulation purpose, and waste gas is handled through the particulate filter core, realizes the drainage guide purpose, and particulate filter core rear end temperature sensor, particulate filter core rear end pressure sensor carry out data feedback, conveniently carry out the dynamic monitoring purpose.
Preferably, the center of the engine air inlet pipe is conductively connected with air, the air is converted into unfiltered exhaust gas of the engine through the engine, and the unfiltered exhaust gas of the engine is converted into filtered exhaust gas of the engine through the particle filter element and the honeycomb heater.
Compared with the prior art, the invention has the beneficial effects that:
through installation honeycomb heater, particulate filter core, honeycomb heater are linked together the setting, conveniently carry out the processing work of the unfiltered waste gas of engine, and can carry out the control work of concentrating through regenerating unit the control unit, conveniently carry out numerical control and adjust work, through overall structure's setting, conveniently carry out exhaust-gas treatment work, better realization high-efficient exhaust purification treatment work.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention.
In the figure: 1. engine filtered exhaust gas; 2. a particulate filter cartridge; 3. a honeycomb heater; 4. unfiltered exhaust gas from the engine; 5. an engine exhaust pipe; 6. an engine; 7. an engine intake duct; 8. an electrically controlled throttle; 9. an air cleaner; 10. air; 11. a reproduction device control unit; 12. an air compressor; 13. an electromagnetic valve; 14. a storage battery; 15. a particulate filter cartridge front end temperature sensor; 16. a particulate filter cartridge front end pressure sensor; 17. a particulate filter cartridge rear end temperature sensor; 18. particulate filter cartridge rear end pressure sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a DPF regeneration device based on combination of throttle valve control and a honeycomb heater comprises an air filter 9, a regeneration device control unit 11, an engine air inlet pipe 7, an electronic control throttle 8 and an engine 6, wherein the air filter 9 is communicated with the engine air inlet pipe 7, the electronic control throttle 8 is arranged in the middle of the engine air inlet pipe 7, the side end of the engine air inlet pipe 7 is communicated with the engine 6, the side end of the engine 6 is communicated with an engine exhaust pipe 5, the side end of the engine exhaust pipe 5 is communicated with the honeycomb heater 3, a particle filter element 2 is arranged at the side end of the honeycomb heater 3, a particle filter element rear end temperature sensor 17 and a particle filter element rear end pressure sensor 18 are arranged at the rear end of the particle filter element 2, a particle filter element front end temperature sensor 15 and a particle filter element front end pressure sensor 16 are arranged at the top of the front end of the particle filter element 2, the particle filter element front end temperature sensor 15, the particle filter element front end pressure sensor 16, the particle filter element rear end temperature sensor 17 and the particle filter element rear end pressure sensor 18 are all electrically communicated with the regeneration device control unit 11, the regeneration device control unit 11 is electrically connected with an electromagnetic valve 13, the honeycomb heater is electrically connected with the regeneration device control unit 11, and the electromagnetic valve 13, and the electromagnetic valve 14 is electrically connected with the honeycomb heater for achieving the purpose of efficient storage battery heater.
Honeycomb heater 3 adopts honeycomb network structure to set up, regenerating unit the unit 11 passes through solenoid valve 13, battery 14 and honeycomb heater 3 control intercommunication, particulate filter core front end temperature sensor 15, particulate filter core front end pressure sensor 16, particulate filter core rear end temperature sensor 17, particulate filter core rear end pressure sensor 18 all communicates with air compressor 12 looks electrical property through regenerating unit the unit 11, regenerating unit the unit 11 and the 8 electrical property intercommunication of automatically controlled air throttle, particulate filter core 2, honeycomb heater 3 adopts the direct mode to arrange the distribution, set up through holistic combination, conveniently carry out the aggregate erection work, improve the integration cooperation connection degree.
A use method of a DPF regeneration device based on combination of throttle valve control and a honeycomb heater comprises the following steps:
s1, air is fed through an air filter 9, then the opening of an electric control throttle valve 8 can be controlled through the regulation of a regeneration device control unit 11, and gas is transmitted to the position of an engine air inlet pipe 7 and communicated to the inner end of an engine 6 to be driven to work through reaction;
s2, when the waste gas reaches the position of the honeycomb heater 3, the regeneration device control unit 11 drives the honeycomb heater 3 to control the start of the honeycomb heater 3 through the electromagnetic valve 13 and the storage battery 14, so that heating treatment is realized, and then the waste gas reaches the position of the particle filter element 2;
s3, the particle filter element front end temperature sensor 15 and the particle filter element front end pressure sensor 16 sense data at the moment, and transmit the data to the position of the regeneration device control unit 11, so that the regeneration device control unit 11 performs control and regulation along with the data, waste gas is processed through the particle filter element 2, the purpose of guiding and discharging is achieved, the particle filter element rear end temperature sensor 17 and the particle filter element rear end pressure sensor 18 perform data feedback, and the purpose of dynamic monitoring is conveniently performed.
The working principle is as follows: when required to operate, the ozone-based DPF regeneration device comprises: the control system consists of a control unit, a control circuit and a sensor and is a control center of the whole regeneration device; the electronic control throttle valve is used for controlling the air inflow of the engine; an exhaust pipe air supply system for supplying air to the exhaust pipe by a small air compressor; the regeneration system comprises a honeycomb heater and a Diesel Particulate Filter (DPF), wherein diesel which is not completely combusted in an exhaust pipe of the engine is ignited by a high-temperature resistance wire of the honeycomb heater and flows into the DPF along with exhaust gas, soot particulate matters in the DPF are combusted, and the DPF is regenerated. When the diesel engine works, if the DPF is about to be blocked under a certain working condition, the pressure and temperature sensors transmit signals to the control system, the control unit sends out an instruction to switch on the electromagnetic valve, the honeycomb heater is electrified to heat the temperature to rise, and then the throttle valve is closed under the driving of the motor. Because the throttle valve in the air inlet pipe of the engine is closed, the air inlet flow is reduced, the concentration of the mixed gas in the combustion chamber of the engine is thickened, part of the diesel oil which is not combusted flows into the exhaust pipe along with the exhaust, when the diesel oil is contacted with the high-temperature resistance wire in the honeycomb heater, the diesel oil in the exhaust is ignited to be combusted, and simultaneously, a control unit sends out an instruction to the air compressor to work to supply air to the exhaust pipe, so that the generated high-temperature fuel gas flows into the pore channel of the DPF, the carbon smoke particles deposited in the DPF are combusted, the DPF can be regenerated, and the normal work of construction machinery is not influenced in the regeneration process, and the invention has the advantages that: simple structure, accurate control, low production cost, convenient popularization and implementation and completion of work.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A DPF regeneration device based on combination of throttle valve control and a honeycomb heater comprises an air filter (9), a regeneration device control unit (11), an engine air inlet pipe (7), an electric control throttle valve (8) and an engine (6), and is characterized in that: the air filter (9) is communicated with an engine air inlet pipe (7), an electric control throttle valve (8) is arranged in the middle of the engine air inlet pipe (7), the side of the engine air inlet pipe (7) is communicated with an engine (6), the side of the engine (6) is communicated with an engine exhaust pipe (5), the side of the engine exhaust pipe (5) is communicated with a honeycomb heater (3), a particle filter element (2) is arranged at the side of the honeycomb heater (3), a particle filter element rear end temperature sensor (17) and a particle filter element rear end pressure sensor (18) are installed at the rear end of the particle filter element (2), a particle filter element front end temperature sensor (15) and a particle filter element front end pressure sensor (16) are installed at the top of the front end of the particle filter element (2), the particle filter element front end temperature sensor (15), the particle filter element front end pressure sensor (16), the particle filter element rear end temperature sensor (17) and the particle filter element rear end pressure sensor (18) are electrically communicated with a regeneration device control unit (11), the regeneration device control unit (11) is communicated with an air regeneration device (12) and an electromagnetic valve (13) is arranged at the regeneration device, the electromagnetic valve (13) is electrically communicated with a storage battery (14), and the storage battery (14) is electrically communicated with the honeycomb heater (3).
2. A DPF regeneration apparatus based on throttle control in combination with a honeycomb heater according to claim 1, characterized in that: the honeycomb heater (3) is arranged in a honeycomb net structure.
3. A DPF regeneration device based on throttle control combined with a honeycomb heater according to claim 2, characterized in that: the regeneration device control unit (11) is communicated with the honeycomb heater (3) through an electromagnetic valve (13) and a storage battery (14) in a control mode.
4. A DPF regeneration apparatus based on throttle control in combination with a honeycomb heater according to claim 3, characterized in that: the particle filter element front end temperature sensor (15), the particle filter element front end pressure sensor (16), the particle filter element rear end temperature sensor (17) and the particle filter element rear end pressure sensor (18) are electrically communicated with the air compressor (12) through the regeneration device control unit (11).
5. A DPF regeneration device based on throttle control combined with a honeycomb heater according to claim 4, characterized in that: the regeneration device control unit (11) is in electrical communication with the electronically controlled throttle (8).
6. A DPF regeneration device based on throttle control combined with a honeycomb heater according to claim 5, characterized in that: the particle filter element (2) and the honeycomb heater (3) are arranged and distributed in a direct guide mode.
7. The use of a DPF regeneration device based on throttle control combined with a honeycomb heater according to claim 6, characterized in that:
s1, air is fed through an air filter (9), then the opening of an electric control throttle valve (8) can be controlled through the adjustment of a regeneration device control unit (11), air is transmitted to the position of an engine air inlet pipe (7) and communicated to the inner end of an engine (6), and the air is driven to work through reaction;
s2, when the waste gas reaches the position of the honeycomb heater (3), the regeneration device control unit (11) drives the honeycomb heater (3) to be controlled to be started through the electromagnetic valve (13) and the storage battery (14) so as to realize heating treatment, and then the waste gas reaches the position of the filter element (2) of the particle filter;
s3, particulate filter core front end temperature sensor (15) this moment, particulate filter core front end pressure sensor (16) carry out the sensing of data, transmit to regenerating unit the control unit (11) position department, make regenerating unit the control unit (11) follow and control the regulation purpose, waste gas is handled through particulate filter core (2), realize the drainage guide purpose, particulate filter core rear end temperature sensor (17), particulate filter core rear end pressure sensor (18) carry out data feedback, conveniently carry out the dynamic monitoring purpose.
CN202210953158.5A 2022-08-09 2022-08-09 DPF regeneration device based on combination of throttle control and honeycomb heater Pending CN115306515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210953158.5A CN115306515A (en) 2022-08-09 2022-08-09 DPF regeneration device based on combination of throttle control and honeycomb heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210953158.5A CN115306515A (en) 2022-08-09 2022-08-09 DPF regeneration device based on combination of throttle control and honeycomb heater

Publications (1)

Publication Number Publication Date
CN115306515A true CN115306515A (en) 2022-11-08

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ID=83859929

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210953158.5A Pending CN115306515A (en) 2022-08-09 2022-08-09 DPF regeneration device based on combination of throttle control and honeycomb heater

Country Status (1)

Country Link
CN (1) CN115306515A (en)

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