CN114961957A

CN114961957A - Novel power discharge system device of diesel vehicle

Info

Publication number: CN114961957A
Application number: CN202110213070.5A
Authority: CN
Inventors: 吕晓军; 陈伟庭; 温伟光
Original assignee: Foshan Qingyu Environmental Protection Technology Co ltd
Current assignee: Foshan Qingyu Environmental Protection Technology Co ltd
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2022-08-30

Abstract

The novel power discharge system device of the diesel vehicle, the essential element includes: the SCR selective catalytic reduction system is also called a urea catalytic reduction device, a DOC-diesel oxidation catalyst, a DPF-particle catcher, an electronic control unit ECU and the like. The structure of the main components of the system and the related pipelines are moderately reformed, the related electromagnetic valve change-over switch and the electromagnetic valve are arranged, the high-pressure air flow generated by the vehicle-mounted compressed air pump or the independent compressed air pump is utilized to efficiently and conveniently clean and regenerate the components of PM particles in the DOC diesel oxidation catalyst and the DPF particle catcher, and the emission of NO, HC, CO and PM particles is effectively reduced. In addition, the novel oil-gas separator or the power economizer is an independent subsystem, and the function of the novel oil-gas separator or the power economizer is mainly to enhance power and improve emission.

Description

Novel power discharge system device of diesel vehicle

Technical Field

The invention relates to the technical field of novel energy-saving and environment-friendly system devices of motor vehicles.

Background

The diesel vehicle exhaust system generally adopts an SCR-selective catalytic reduction system or urea catalytic reduction device, DOC-diesel oxidation catalyst and DPF-particle trap which are important components and combined in the exhaust system, so that the emission of NO, HC, CO and PM particles is effectively reduced. The principle of SCR is that NO in exhaust gas is selectively reduced by urea to generate nitrogen and water, DOC is a technology that HC, CO, NO in exhaust gas and volatile components on the surface of particles are further oxidized by using a catalyst containing precious metal to reduce the amount of HC, CO, and PM, and DPF is a filter mainly used for capturing PM, which is particulate matter, in exhaust gas.

However, after the system works for a period of time, PM particles are accumulated in the filter element of the component, the power of a vehicle is seriously influenced, and the regeneration of the system component is a long-standing problem by how to regularly clean the PM particles in the component. There are several common practices: 1. the filter is provided with a heating component, and secondary air is supplied when the heater is heated at high temperature to burn off particles retained on the filter element. 2. The vehicle is parked in an open place far away from a gas station, the vehicle is filled to the limit, and the high temperature of the exhaust pipe is used for burning and removing the particles. 3. The vehicle is driven to a repair shop, an exhaust emission system is disassembled, special equipment is used for manually purging particles blocked in the DPF, the particles are put into the operation equipment for cleaning and drying, and the particles are installed on the vehicle again for use, so that the whole cleaning process is completed by more than one day. The scheme is high in cost, not environment-friendly and time-consuming. In addition, the improvement of the exhaust system affects the power of the vehicle, so how to improve and enhance the power of the vehicle is also an important issue.

Disclosure of Invention

In order to efficiently and conveniently solve the problems, the invention provides an effective, convenient and low-cost solution, namely a novel power discharge system device of a diesel vehicle. In the novel power discharge system device of the diesel vehicle, the structure of the main parts of the system and the related pipelines are properly reformed, the related electromagnetic valve change-over switch and the electromagnetic valve are arranged, the high-pressure air flow generated by a vehicle-mounted compressed air pump or an independent compressed air pump is utilized to efficiently clean PM particles in a DOC diesel oxidation catalyst and a DPF particle catcher and regenerate the parts, and the control part is an Electronic Control Unit (ECU). In addition, the novel oil-gas separator or called power economizer provided by the company is arranged, the function is mainly to enhance power improvement and emission, and the novel oil-gas separator or called power economizer is an independent subsystem, the working principle is that a waste gas pipe of an engine crankcase is communicated with an air inlet nozzle of the novel oil-gas separator, an air outlet nozzle of the novel oil-gas separator is communicated with an engine air inlet pipe near a throttle valve through a pipeline, a power supply lead of a direct-current centrifugal exhaust fan of the novel oil-gas separator is connected with a joint end of a vehicle-mounted starting power supply, when a vehicle runs, waste gas volatilized by the engine crankcase enters the air inlet nozzle of the novel oil-gas separator through the waste gas pipe, the waste gas flows through a multilayer filter element partition plate of the separator, engine oil and other impurities in the waste gas are separated out, the direct-current centrifugal exhaust fan of the separator is driven by the vehicle-mounted starting power supply to perform air draft operation and promote and accelerate the flow of air flow, and relatively clean air is communicated with the air inlet pipe of the engine through the air outlet nozzle, and then enters the engine for combustion. As engine oil and other impurity components entering combustion air of an engine are reduced by large-scale filtration, the components of CH compounds in exhaust emission gas are obviously reduced, and the power of a vehicle is improved, multiple tests prove that the maximum wheel rim power of a diesel vehicle can be improved by 2-3%.

The novel power discharge system device of the diesel vehicle, the essential element includes: SCR selective catalytic reduction system or called urea catalytic reduction ware, DOC-diesel oil oxidation catalyst converter, DPF-granule trapper, novel oil and gas separator or called power gasoline economizer and its and on-vehicle start power end connecting wire, 4 and relevant signal lines of solenoid valve, solenoid valve change over switch 1 and solenoid valve change over switch 2 and relevant signal line, the compressed air pump of diesel vehicle, Y type tee bend, automatically controlled unit ECU and its and on-vehicle start power end connecting wire, the novel power emission system device of diesel vehicle its characterized in that: an air pressure gas connector is arranged at the upper end of the DOC diesel oxidation catalyst, a particulate matter PM discharge outlet is arranged at the bottom of the DOC diesel oxidation catalyst, the DOC diesel oxidation catalyst is provided with an electromagnetic valve 1, an air pressure gas connector is arranged at the upper end of the DPF particle catcher, a particulate matter PM discharge outlet is arranged at the bottom of the DPF particle catcher, an electromagnetic valve 2 is arranged, an electromagnetic valve steering switch 1 is added at the air pressure output end of a compressed air pump of the diesel vehicle, the 2 ends of the compressed air pump of the diesel vehicle are respectively connected with a brake system channel and another special channel, the special channel is further communicated with a Y-shaped tee, the other 2 ends of the Y-shaped tee are respectively communicated with 2 air pressure gas connectors arranged at the upper ends of the DOC diesel oxidation catalyst and the DPF particle catcher through rubber tubes, a power wire of an electric control unit ECU is communicated with a connector end of a vehicle-mounted starting power supply, and signal wires of a signal output end wire harness of the ECU are respectively communicated with 4 electromagnetic valves and 2 electromagnetic valve change-over switches, the technical scheme includes that a system device special exhaust pipe is additionally arranged behind an oxygen sensor of an original vehicle exhaust pipe, a solenoid valve steering switch 2 is arranged at the junction of the system device and the original vehicle exhaust pipe, the special exhaust pipe is communicated with an SCR (selective catalytic reduction) urea catalytic reduction device, the SCR is communicated with a DOC diesel oxidation catalyst through a pipeline, a solenoid valve 3 is arranged in the middle of the communicated pipeline, the DOC is communicated with a DPF (diesel particulate filter) particle catcher through a pipeline, a DPF waste gas output end is the final exhaust pipe and an exhaust port, a solenoid valve 4 is arranged at the exhaust pipe at the rear end of the DPF, an air inlet nozzle of a novel oil-gas separator or called power economizer is communicated with a waste gas pipe of an engine crankcase, an air outlet nozzle of the novel oil-gas separator or called power economizer is communicated with an interface of an engine air inlet pipe through an additional pipeline, and a direct-current centrifugal fan power supply lead in the novel oil-gas separator or called power economizer is connected with a joint end of a vehicle-mounted starting power supply; when the diesel vehicle stops at an idle speed, the novel power emission system device of the diesel vehicle can start the process of cleaning PM particles as follows: the novel power exhaust system device of the diesel vehicle is characterized in that an electromagnetic valve steering switch 2 arranged at the intersection of an exhaust pipe and an exhaust pipe of a primary vehicle receives a signal instruction output by an electronic control unit ECU, a specially-designed exhaust pipe channel is closed, the exhaust pipe channel of the primary vehicle is opened, the ECU instructs to close an electromagnetic valve 3 and an electromagnetic valve 4, an electromagnetic valve steering switch 1 at the air pressure output end of a compressed air pump of the diesel vehicle receives the instruction sent by the ECU, a channel connected with a brake system is closed, another special channel is opened, the air flow of the compressed air pump is respectively input into a DOC diesel oxidation catalyst and a DPF particle catcher from 2 air pressure gas joints at the upper end through a Y-shaped tee joint and a guide pipe of the special channel, and when the air pressure reaches the specified atmospheric pressure, the electromagnetic valve 1 and the electromagnetic valve 2 at the PM discharge outlet of the DOC and the DPF open a PM discharge outlet channel of the particulate matter according to the instruction of the ECU respectively, the high-pressure airflow instantly discharges the particulate matters in the DOC and DPF filtering system through the PM discharge outlet, the second round starts, the electromagnetic valve 1 and the electromagnetic valve 2 are firstly closed, when the air pressure reaches the specified atmospheric pressure, the electromagnetic valve 1 and the electromagnetic valve 2 are opened, the high-pressure airflow instantly discharges the particulate matters in the DOC and DPF filtering system through the PM discharge outlet, the operation is repeated for many times, all the particulate matters are basically cleaned, and the cleaning process is finished, namely after the regeneration treatment of the DOC diesel oxidation catalyst and the DPF particle catcher is finished, the discharged particulate matters are collected and stored; the novel power emission system device of the diesel vehicle is in a starting and running state, an electromagnetic valve steering switch 2 of the novel power emission system device of the diesel vehicle receives a signal instruction output by an Electronic Control Unit (ECU), an exhaust pipe channel of an original vehicle is closed, a special exhaust pipe channel is opened, an electromagnetic valve 1 and the electromagnetic valve 2 are in a normally closed state, an electromagnetic valve 3 and an electromagnetic valve 4 are in a normally open state, the electromagnetic valve steering switch 1 at the air pressure output end of a compressed air pump of the diesel vehicle receives the instruction sent by the ECU, a channel connected with a brake system is opened, the other special channel is closed, and the novel power emission system device of the diesel vehicle starts to filter and purify exhaust gas; the oil-gas separator or the direct-current centrifugal fan in the power economizer starts to work under the driving of the vehicle-mounted starting power supply, namely the oil-gas separator starts to separate the engine oil and other impurities in the waste gas of the crankcase.

Novel power exhaust system device of diesel vehicle, its characteristic 2: the novel oil and gas separator or power economizer function of important part mainly strengthens power and improves and discharge, is independent subsystem, and the user can install the novel oil and gas separator or power economizer of operation as required independently, also can merge and be in the novel power emission system device of diesel vehicle in installation operation, otherwise the user can not install the novel oil and gas separator or power economizer of operation in the novel power emission system device of diesel vehicle as required, can not influence the work that the system device filters and purifies exhaust gas and effectively clears up PM particulate matter, can not influence promptly the regeneration treatment work of PM particulate filter in DOC and the DPF.

The novel power discharge system device of the diesel vehicle, its characteristic 3: the novel oil-gas separator or power economizer mainly comprises the following components: the device comprises a main body shell, an air inlet nozzle, an air outlet nozzle, a plurality of layers of filter element clapboards in a cavity of the main body shell, a central cylinder which is positioned at the central shaft of the main body shell and penetrates through and is connected with the plurality of layers of filter element clapboards, a direct current centrifugal exhaust fan and a power cord thereof, wherein the direct current voltage is the same as that of a vehicle-mounted starting power supply, 12V or 24V, and a sewage discharge nozzle with a screw cap and arranged at the bottom end; the novel oil-gas separator or the dynamic fuel economizer meets the use requirements that: when the vehicle runs for more than 5000 kilometers, the separated waste engine oil and other impurities are manually discharged and cleaned.

Novel power exhaust system device of diesel vehicle, its characteristic 4: if the user does not utilize the compressed air pump on the diesel vehicle to clear up the PM particulate matter, or some braking systems are hydraulic, can utilize independent compressed air pump to clear up the PM particulate matter, the scheme is as follows: when the diesel vehicle stops at idle speed, the electromagnetic valve steering switch 2 receives a signal instruction output by an electronic control unit ECU, a specially-designed exhaust pipe passage is closed, an original vehicle exhaust pipe passage is opened, the ECU instruction closes the electromagnetic valve 3 and the electromagnetic valve 4, an output air pipe of an independent air compression pump is connected with a Y-shaped tee joint, the other 2 ends of the Y-shaped tee joint are respectively communicated with 2 air pressure gas connectors at the upper ends of a DOC diesel oxidation catalyst and a DPF particle catcher through rubber pipes, the air compression pump is started, when the air pressure reaches a specified atmospheric pressure, the electromagnetic valve 1 and the electromagnetic valve 2 at the particulate matter PM discharge outlet of the DOC and the DPF respectively open the particulate matter PM discharge outlet passage according to the instruction of the ECU, the particulate matter in the DOC and the DPF filtering system is discharged through the PM discharge outlet by high-pressure air flow instantly, the electromagnetic valve 1 and the electromagnetic valve 2 are closed firstly when the air pressure reaches the specified atmospheric pressure, and then the electromagnetic valve 1 and the electromagnetic valve 2 are opened, the particulate matters in the DOC and DPF filtration system are discharged through the PM discharge outlet instantly by high-pressure airflow, the process is repeated for many times, all the particulate matters are basically removed completely, the removal process is completed, namely, after the regeneration treatment of the DOC diesel oxidation catalyst and the DPF particle catcher, the compressed air pump is closed, the electromagnetic valve 1 and the electromagnetic valve 2 are closed, the electromagnetic valve 3 and the electromagnetic valve 4 are restored to the open state, the electromagnetic valve steering switch 2 closes the exhaust pipe channel of the original vehicle and opens the specially-arranged exhaust pipe channel, and the discharged particulate matters are collected and stored.

Drawings

FIG. 1 is a schematic structural diagram of a novel power exhaust system device of a diesel vehicle.

FIG. 2 is a schematic structural diagram of the novel oil-gas separator.

FIG. 3 is a schematic structural diagram of the invention only installing a novel oil-gas separator subsystem.

FIG. 4 is a schematic diagram of the system of the present invention without the novel oil and gas separator subsystem.

FIG. 5 is a schematic diagram of the system of the present invention using a separate air compressor pump.

Detailed Description

As will be described in detail below.

Referring to fig. 1, a schematic structural diagram of a novel power exhaust system device of a diesel vehicle of the present invention includes the following main components: SCR selective catalytic reduction system or urea catalytic reduction device 1, DOC-diesel oxidation catalyst 2, DPF-particle catcher 3, novel oil-gas separator or power economizer 4 and connecting wire 4-5 with vehicle-mounted starting power supply end 12, electromagnetic valve 2-2 installed at 2-1 of particulate matter PM discharge outlet of DOC-diesel oxidation catalyst 2, electromagnetic valve 3-2 installed at 3-1 of particulate matter PM discharge outlet of DPF-particle catcher 3, electromagnetic valve 5 installed at channel between SCR selective catalytic reduction system or urea catalytic reduction device and DOC-diesel oxidation catalyst 2, electromagnetic valve 6 installed at final tail gas discharge outlet of DPF-particle catcher 3, electromagnetic valve change-over switch 1(7), electromagnetic valve change-over switch 2(8), compressed air pump 9 of diesel vehicle, y-shaped tee joint 10 and electronic control unit ECU 11. An air pressure gas connector 2-3 is arranged at the upper end of the DOC-diesel oxidation catalyst device 2, an air pressure gas connector 3-4 is arranged at the upper end of the DPF-particle catcher 3, an electromagnetic valve steering switch 1(7) is arranged at the air pressure output end of compressed air 9 of the diesel vehicle, the 2 ends are respectively connected with a channel 7-3 of a brake system 18 and another special channel 7-2, the special channel 7-2 is further communicated with a Y-shaped tee joint 10, the other 2 ends of the Y-shaped tee joint are respectively communicated with 2 air pressure gas connectors 2-3 and 3-4 which are arranged at the upper ends of the DOC-diesel oxidation catalyst device and the DPF particle catcher through rubber pipes 2-4 and 3-5, a power wire 11-1 of an electronic control unit ECU11 is communicated with the connector end of a vehicle-mounted starting power supply 12, and a signal wire 2-5 of a signal output end wire harness of the ECU is communicated with the connector end of the vehicle-mounted starting power supply 12, 3-3, 5-1, 6-1, 7-1 and 8-1 are respectively communicated with 4 electromagnetic valves (2-2, 3-2, 5 and 6) and 2 electromagnetic valve change-over switches (7 and 8), a system device is additionally arranged behind an oxygen sensor (20) of an exhaust pipe (13) of an original vehicle, a specially-arranged exhaust pipe (14) is arranged at the junction of the specially-arranged exhaust pipe (13) and the exhaust pipe (13) of the original vehicle, an electromagnetic valve steering switch (2) (8) is arranged at the junction of the specially-arranged exhaust pipe (14) and an SCR urea catalytic reduction device (1), an SCR (1) is communicated with a DOC diesel oxidation catalyst (2) through a pipeline, an electromagnetic valve (3) (5) is arranged in the middle of the communicated pipeline, a DOC (2) is communicated with a DPF (diesel particle trap) 3 through a pipeline, a DPF gas separator (3) exhaust output end, namely a final exhaust pipe and an exhaust port (14-1), an electromagnetic valve (4) (6) is arranged at the exhaust pipe at the rear end of the DPF, an air inlet nozzle (4-1) of the novel oil is communicated with an exhaust pipe (4-3) of an engine crankcase, an air outlet nozzle 4-2 of the novel oil-gas separator is communicated with a connector 17-1 of an engine air inlet pipe 17 through an additional pipeline 4-4, a direct-current centrifugal fan 4-6 power supply lead 4-5 of the novel oil-gas separator is connected with a connector end of a vehicle-mounted starting power supply 12, and a blow-down nozzle 4-7 with a screw cap is arranged at the bottom end of the novel oil-gas separator.

Referring to fig. 2, the structural schematic diagram of the novel oil-gas separator of the present invention includes the following main components: the air purifier comprises a main body shell 4-8, an air inlet nozzle 4-1, an air outlet nozzle 4-2, a plurality of layers of filter element partition plates 4-9 in a cavity of the main body shell, a central cylinder 4-10 which is positioned at the central shaft position of the main body shell and penetrates through and is connected with the plurality of layers of filter element partition plates, a direct current centrifugal exhaust fan 4-6 and a power line 4-5 thereof, and a sewage discharge nozzle 4-7 with a screw cap is arranged at the bottom end of the air purifier.

Referring to fig. 3, the invention is only provided with a structural schematic diagram of a novel oil-gas separator subsystem, an air inlet nozzle 4-1 of the novel oil-gas separator is communicated with an exhaust gas pipe 4-3 of a crankcase 16 of an engine 15, an air outlet nozzle 4-2 of the novel oil-gas separator is communicated with a connector 17-1 of an air inlet pipe 17 of the engine 15 through an additional pipeline 4-4, and a direct-current centrifugal fan 4-6 power lead 4-5 of the novel oil-gas separator is connected with a connector end of a vehicle-mounted starting power supply 12.

Referring to fig. 4, the structural schematic diagram of the system device without the novel oil-gas separator subsystem according to the present invention is shown, and the novel oil-gas separator 4 subsystem is not installed, the exhaust gas pipe 4-3 of the crankcase 16 of the engine 15 is directly communicated with the interface 17-1 of the engine intake pipe 17, and the connection manner of other components is the same as that of fig. 1.

Referring to fig. 5, the structure of the system device of the present invention using an independent air compressor pump is schematically shown, an output air pipe of the independent air compressor pump 19 is connected to a Y-shaped tee 7, and the other 2 ends of the Y-shaped tee 7 are respectively connected to 2 air pressure gas connectors 2-3 and 3-4 at the upper ends of a DOC diesel oxidation catalyst and a DPF particulate trap through rubber pipes 2-4 and 3-5. The other components are connected in the same manner as in fig. 1.

In conclusion, the product has the advantages and characteristics that: the vehicle owner can clear up the work of the PM particulate matter of jam at any time, ensures the high-efficient operation of vehicle under the condition of low cost, pollution-free, safe quick, promotion power is obvious, the operation is extremely simple.

The above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims

1. The novel power discharge system device of the diesel vehicle, the essential element includes: SCR selective catalytic reduction system or called urea catalytic reduction ware, DOC-diesel oil oxidation catalyst converter, DPF-granule trapper, novel oil and gas separator or called power gasoline economizer and its and on-vehicle start power end connecting wire, 4 and relevant signal lines of solenoid valve, solenoid valve change over switch 1 and solenoid valve change over switch 2 and relevant signal line, the compressed air pump of diesel vehicle, the Y type tee bend, automatically controlled unit ECU and its and on-vehicle start power end connecting wire, the novel power emission system device of diesel vehicle its characterized in that: an air pressure gas connector is arranged at the upper end of the DOC diesel oxidation catalyst, a particulate matter PM discharge outlet is arranged at the bottom of the DOC diesel oxidation catalyst, the DOC diesel oxidation catalyst is provided with an electromagnetic valve 1, an air pressure gas connector is arranged at the upper end of the DPF particle catcher, a particulate matter PM discharge outlet is arranged at the bottom of the DPF particle catcher, an electromagnetic valve 2 is arranged, an electromagnetic valve steering switch 1 is added at the air pressure output end of a compressed air pump of the diesel vehicle, the 2 ends of the compressed air pump of the diesel vehicle are respectively connected with a brake system channel and another special channel, the special channel is further communicated with a Y-shaped tee, the other 2 ends of the Y-shaped tee are respectively communicated with 2 air pressure gas connectors arranged at the upper ends of the DOC diesel oxidation catalyst and the DPF particle catcher through rubber tubes, a power wire of an electric control unit ECU is communicated with a connector end of a vehicle-mounted starting power supply, and signal wires of a signal output end wire harness of the ECU are respectively communicated with 4 electromagnetic valves and 2 electromagnetic valve change-over switches, the technical scheme includes that a system device special exhaust pipe is additionally arranged behind an oxygen sensor of an original vehicle exhaust pipe, a solenoid valve steering switch 2 is arranged at the junction of the system device and the original vehicle exhaust pipe, the special exhaust pipe is communicated with an SCR (selective catalytic reduction) urea catalytic reduction device, the SCR is communicated with a DOC diesel oxidation catalyst through a pipeline, a solenoid valve 3 is arranged in the middle of the communicated pipeline, the DOC is communicated with a DPF (diesel particulate filter) particle catcher through a pipeline, a DPF waste gas output end is the final exhaust pipe and an exhaust port, a solenoid valve 4 is arranged at the exhaust pipe at the rear end of the DPF, an air inlet nozzle of a novel oil-gas separator or called power economizer is communicated with a waste gas pipe of an engine crankcase, an air outlet nozzle of the novel oil-gas separator or called power economizer is communicated with an interface of an engine air inlet pipe through an additional pipeline, and a direct-current centrifugal fan power supply lead in the novel oil-gas separator or called power economizer is connected with a joint end of a vehicle-mounted starting power supply; when the diesel vehicle stops at an idle speed, the novel power emission system device of the diesel vehicle can start the process of cleaning PM particles as follows: the novel power exhaust system device of the diesel vehicle is characterized in that an electromagnetic valve steering switch 2 arranged at the intersection of an exhaust pipe and an original vehicle exhaust pipe receives a signal instruction output by an electronic control unit ECU, an specially-arranged exhaust pipe channel is closed, an original vehicle exhaust pipe channel is opened, the ECU instructs to close an electromagnetic valve 3 and an electromagnetic valve 4, an electromagnetic valve steering switch 1 at the air pressure output end of a compressed air pump of the diesel vehicle receives the instruction sent by the ECU, a channel connected with a brake system is closed, another special channel is opened, the air flow of the compressed air pump is respectively input into a DOC diesel oxidation catalyst and a DPF particle catcher from 2 air pressure gas joints at the upper end through a Y-shaped tee joint of the special channel and a guide pipe thereof, and when the air pressure reaches the specified atmospheric pressure, the electromagnetic valve 1 and the electromagnetic valve 2 at the particulate matter PM discharge outlet of the DOC and the DPF respectively open a particulate matter PM discharge outlet channel according to the instruction of the ECU, the high-pressure airflow instantly discharges the particulate matters in the DOC and DPF filtering system through the PM discharge outlet, the second round starts, the electromagnetic valve 1 and the electromagnetic valve 2 are firstly closed, when the air pressure reaches the specified atmospheric pressure, the electromagnetic valve 1 and the electromagnetic valve 2 are opened, the high-pressure airflow instantly discharges the particulate matters in the DOC and DPF filtering system through the PM discharge outlet, the operation is repeated for many times, all the particulate matters are basically cleaned, and the cleaning process is finished, namely after the regeneration treatment of the DOC diesel oxidation catalyst and the DPF particle catcher is finished, the discharged particulate matters are collected and stored; the novel power emission system device of the diesel vehicle is in a starting and running state, an electromagnetic valve steering switch 2 of the novel power emission system device of the diesel vehicle receives a signal instruction output by an Electronic Control Unit (ECU), an exhaust pipe channel of an original vehicle is closed, a special exhaust pipe channel is opened, an electromagnetic valve 1 and the electromagnetic valve 2 are in a normally closed state, an electromagnetic valve 3 and an electromagnetic valve 4 are in a normally open state, the electromagnetic valve steering switch 1 at the air pressure output end of a compressed air pump of the diesel vehicle receives the instruction sent by the ECU, a channel connected with a brake system is opened, the other special channel is closed, and the novel power emission system device of the diesel vehicle starts to filter and purify exhaust gas; the oil-gas separator or the direct-current centrifugal fan in the power economizer starts to work under the driving of the vehicle-mounted starting power supply, namely the oil-gas separator starts to separate the engine oil and other impurities in the waste gas of the crankcase.

2. The new power exhaust system device of diesel vehicle as claimed in claim 1, wherein: the novel oil-gas separator or power economizer function of important parts is mainly an independent subsystem for improving power and emission, the user can independently install and operate the novel oil-gas separator or power economizer as required, and also can be combined in the novel power emission system device of the diesel vehicle for installation and operation, otherwise, the user can not install and operate the novel oil-gas separator or power economizer as required in the novel power emission system device of the diesel vehicle, the work of filtering and purifying exhaust gas and effectively cleaning PM particles of the system device can not be influenced, namely, the work of regeneration treatment of the PM particle filter in DOC and DPF can not be influenced.

3. The new power exhaust system device of diesel vehicle as claimed in claim 1, wherein: the novel oil-gas separator or power economizer mainly comprises the following components: the device comprises a main body shell, an air inlet nozzle, an air outlet nozzle, a plurality of layers of filter element clapboards in a main body shell cavity, a central cylinder which is positioned at a central shaft of the main body shell and penetrates through and is connected with the plurality of layers of filter element clapboards, a direct current centrifugal exhaust fan and a power cord thereof, 12V or 24V, and a sewage discharge nozzle with a screw cap and arranged at the bottom end, wherein the direct current centrifugal exhaust fan and the power cord thereof have the same direct current voltage as a vehicle-mounted starting power supply; the novel oil-gas separator or the dynamic fuel economizer meets the use requirements that: when the vehicle runs for more than 5000 kilometers, the separated waste engine oil and other impurities are manually discharged and cleaned.

4. The new power exhaust system device of diesel vehicle according to claim 1, characterized in that: if the user does not utilize the compressed air pump on the diesel vehicle to clear up the PM particulate matter, or some braking systems are hydraulic, can utilize independent compressed air pump to clear up the PM particulate matter, the scheme is as follows: when the diesel vehicle stops at idle speed, the electromagnetic valve steering switch 2 receives a signal instruction output by an electronic control unit ECU, a specially-designed exhaust pipe passage is closed, an original vehicle exhaust pipe passage is opened, the ECU instruction closes the electromagnetic valve 3 and the electromagnetic valve 4, an output air pipe of an independent air compression pump is connected with a Y-shaped tee joint, the other 2 ends of the Y-shaped tee joint are respectively communicated with 2 air pressure gas connectors at the upper ends of a DOC diesel oxidation catalyst and a DPF particle catcher through rubber pipes, the air compression pump is started, when the air pressure reaches a specified atmospheric pressure, the electromagnetic valve 1 and the electromagnetic valve 2 at the particulate matter PM discharge outlet of the DOC and the DPF respectively open the particulate matter PM discharge outlet passage according to the instruction of the ECU, the particulate matter in the DOC and the DPF filtering system is discharged through the PM discharge outlet by high-pressure air flow instantly, the electromagnetic valve 1 and the electromagnetic valve 2 are closed firstly when the air pressure reaches the specified atmospheric pressure, and then the electromagnetic valve 1 and the electromagnetic valve 2 are opened, the particulate matters in the DOC and DPF filtration system are discharged through the PM discharge outlet instantly by high-pressure airflow, the process is repeated for many times, all the particulate matters are basically removed completely, the removal process is completed, namely, after the regeneration treatment of the DOC diesel oxidation catalyst and the DPF particle catcher, the compressed air pump is closed, the electromagnetic valve 1 and the electromagnetic valve 2 are closed, the electromagnetic valve 3 and the electromagnetic valve 4 are restored to the open state, the electromagnetic valve steering switch 2 closes the exhaust pipe channel of the original vehicle and opens the specially-arranged exhaust pipe channel, and the discharged particulate matters are collected and stored.