CN111485994A - High-pressure turbocharger - Google Patents
High-pressure turbocharger Download PDFInfo
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- CN111485994A CN111485994A CN202010423901.7A CN202010423901A CN111485994A CN 111485994 A CN111485994 A CN 111485994A CN 202010423901 A CN202010423901 A CN 202010423901A CN 111485994 A CN111485994 A CN 111485994A
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- air
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- air inlet
- filter screen
- controller
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 11
- 238000002485 combustion reaction Methods 0.000 abstract description 8
- 239000000779 smoke Substances 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5846—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling by injection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B2037/122—Control of rotational speed of the pump
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
Abstract
The invention aims to solve the problems of low combustion efficiency and serious tail gas pollution of a fuel engine. The concept of high-pressure and stable-pressure air inlet of the fuel engine is provided, the pretreatment technology of the tail gas of the fuel engine is provided, the emission of tail gas pollutants is reduced by improving the combustion efficiency, and the contradiction between the generation of NOx and the generation of CO, CH and smoke dust of the fuel engine is effectively solved. The invention adopts two-stage superchargers to improve the air inlet pressure of the engine, wherein the second-stage supercharger adopts a low-power electric air supercharger to be connected with a natural air inlet system in parallel to replace a high-power electric air supercharger to be used as an air inlet supercharger of a tail gas turbocharger, the requirement of insufficient air supply of the low-power electric air supercharger is made up when large-flow air inlet is carried out, the capacities of a storage battery and a generator are not increased, the structure of the engine is not changed, and high-pressure and stable-pressure air.
Description
Technical Field
The invention belongs to the technical field of engine turbochargers, and particularly relates to a high-pressure turbocharger.
Background
Many existing engines are equipped with a tail gas turbocharger, and the tail gas of the engine blows a turbine to drive a compressor to rotate at a high speed to generate high-pressure air, so that the power of the engine is greatly improved. However, the air output of the exhaust gas turbocharger is limited by its structure, the engine exhaust gas flow rate, and the air cleaner resistance. The turbocharger does not intervene during low revolution, and the phenomenon of negative pressure air intake appears at the engine air inlet, and the phenomenon of negative pressure air intake appears at the turbocharger air inlet because the resistance of filter screen produces the pressure differential during high revolution, and turbocharger output pressure hardly improves again. Therefore, the air inlet pressure of the engine is unstable, and the requirement of high-pressure air inlet of the diesel engine cannot be met. The problems of low combustion efficiency of the engine, serious pollution of tail gas and the like still exist. If a higher-power electric air supercharger is adopted for air supply, a high-power high-voltage storage battery and a generator need to be matched for power supply. The current fuel-oil vehicle does not have such conditions. How to improve the output pressure and flow of the turbocharger, eliminate the negative pressure air intake phenomenon, improve the heat efficiency of the engine and reduce the exhaust emission pollution becomes a problem to be solved urgently.
Disclosure of Invention
In view of the above, the invention aims to solve the problems of insufficient air intake, low combustion efficiency and serious tail gas pollution of a diesel engine, and particularly provides a high-pressure turbocharger.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
according to the invention, the air supercharger is adopted to supply air for the tail gas turbocharger, the output pressure of the turbocharger is improved by a two-stage supercharging method, and the problems of negative pressure air intake and unstable pressure of the engine are solved;
a high-pressure turbocharger comprises an exhaust gas turbocharger and an air supercharger; the method is characterized in that: the air inlet of the tail gas turbocharger is communicated with the air outlet of the air supercharger through a tee joint or a chamber; a filter screen is connected or arranged on a side opening of the tee joint, or the chamber is surrounded by the filter screen; the air inlet of the air supercharger is communicated with the air inlet filter screen; the air supercharger is an electric air supercharger or a mechanical air supercharger, a motor of the electric air supercharger is connected with a controller, and the controller controls the working state of the electric air supercharger.
Further, the electric air supercharger or the mechanical air supercharger includes: one of a centrifugal fan structure, a turbo fan structure, an axial flow fan structure, a rotor structure, a pneumatic motor structure, a waist wheel structure, a propeller structure and a piston structure; the exhaust gas turbocharger compressor includes: single stage impeller or two stage impeller or multi stage impeller compressor.
Further, the controller is a forward and reverse rotation speed regulation controller, and the motor of the electric air supercharger is a speed regulation motor with controllable forward and reverse rotation.
The power supply input end of the controller is connected with the storage battery, the output end of the controller is connected with the electric air supercharger motor, and the positive and negative rotation speed and the starting and stopping of the electric air supercharger motor are controlled.
Furthermore, the controller is arranged in an air flow channel at one side of an air inlet or an air outlet of the electric air supercharger, and the high-speed air flow of air inlet or exhaust of the supercharger dissipates heat for the controller, so that the service life of the controller is prolonged.
Furthermore, a first air inlet check valve is arranged on a filter screen of the three-way side port.
Further, the controller is provided with or connected with a switch, a power supply controller or a relay, and the power supply of the controller is controlled to be switched on and off.
The power supply controller or the relay can be controlled by a main power supply of an automobile engine, and when the automobile is shut down and powered off, the power supply of the controller is disconnected, so that the shutdown power consumption of the automobile is reduced.
Further, the outlet of the high-pressure turbocharger is connected with the air inlet of the engine, the signal input end of the controller is connected with a throttle sensor or an accelerator sensor or an engine speed sensor or an oil injection pulse signal sensor or a manual potentiometer, and the sensor signal or the manual potentiometer signal controls the rotation speed and the start and stop of the electric air supercharger; the potentiometer is arranged at any position outside the shell in an extending mode through a lead.
The electric air supercharger motor is controllable in positive and negative rotation. The controller is a direct current controller or a three-phase electric controller and can control the rotating speed, start and stop, positive and negative rotation of the electric supercharger motor. The motor is controlled to rotate forwards, reversely or start and stop by an internal command or an external signal of a controller. The controller of the electric air supercharger can be arranged inside or outside the integral filter screen. The preferred controller is arranged in the filter screen, and the outside of the filter screen only retains the air outlet, the electric signal interface and the necessary adjusting knob.
Further, a second tee joint is connected or arranged on the outlet of the tail gas turbocharger, and a side port of the second tee joint is communicated with an outlet of a second air inlet check valve of which an air inlet is provided with a filter screen; the air inlet of the second air inlet check valve is communicated with the outside through a filter screen, or communicated with the air inlet of the tail gas turbocharger, and the tail gas turbocharger shares one filter screen, or the second tee joint and the air inlet check valve are wrapped inside the whole filter screen.
And a tee joint between the tail gas turbocharger and the engine and a second air inlet check valve are second-stage air inlet devices. When the engine runs at low speed, particularly idling, the electric air supercharger is not started, the tail gas turbocharger is not involved, the air inlet flow rate cannot meet the air inlet requirement of the engine, short-time negative pressure air inlet can be formed, the combustion efficiency is low, and the exhaust pollution is serious. At the moment, the second air inlet check valve is opened, and the air inlet requirement of the engine at low speed is met. After the pressure of the air inlet of the engine rises, the second-stage check valve is automatically closed, and high-pressure air inlet of the engine is kept.
When the air inlet of the air inlet check valve is communicated with the air inlet of the tail gas turbocharger, air is introduced through the air inlet filter screen of the tail gas turbocharger and the electric air supercharger. And the negative pressure air intake phenomenon of the tail gas turbocharger at low rotating speed is effectively eliminated.
Further, the export of tee bend or cavity is outside, and inside all the other parts parcel whole filter screen, whole filter screen is cut apart into by intermediate bottom, and the whole filter screen that admits air naturally admits air and electronic air supercharger admits air, electronic air supercharger sets up on the baffle, its air inlet intercommunication electronic air supercharger admits air whole filter screen, its gas outlet pass through the cavity perhaps the tee bend intercommunication admits air naturally and whole filter screen, with tail gas air supercharger air inlet. The controller is arranged in the filter screen, and the power supply, the electric signal interface and the adjusting knob are arranged outside the filter screen.
The tee joint is an independent tee joint or a tee joint with an air inlet check valve.
The tee joint and the electric air supercharger can be provided with two independent air inlet filter screens or an integral filter screen. The integral filter screen can simplify the structure of the invention, reduce the volume, and arrange all the components together, thereby being convenient for debugging and installation.
Furthermore, a water cooling device is arranged on the turbocharger.
The water cooling device is a water circulation system arranged on the shell of the turbocharger, and the temperature of the turbocharger is reduced through water circulation or water evaporation cooling.
Compared with the prior art, the invention has the advantages that:
the invention adopts two-stage superchargers to improve the air inlet pressure of the engine, wherein the second-stage supercharger adopts a low-power electric air supercharger to be connected with a natural air inlet system in parallel to replace a high-power electric air supercharger to be used as an air inlet supercharger of a tail gas turbocharger, the requirement of insufficient air supply of the low-power electric air supercharger is made up when large-flow air inlet is carried out, the capacities of a storage battery and a generator are not increased, the mechanism of the engine is not changed, and high-pressure and stable-pressure air.
Drawings
FIG. 1 is a schematic structural view of a high pressure turbocharger equipped with a tee joint according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a high pressure turbocharger provided with a second tee according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a water cooling device according to an embodiment of the present invention;
FIG. 4 is a schematic view of a high pressure turbocharger equipped with a chamber according to an embodiment of the present invention;
fig. 5 is a schematic structural view of the integrated filter screen according to the embodiment of the present invention.
Wherein:
1. an exhaust gas turbocharger; 2. a tee joint; 3. an electric air supercharger;
4. an air inlet filter screen of the electric air supercharger; 5. a first intake check valve;
6. a natural air intake filter screen; 7. a high pressure turbocharger air outlet;
8. a controller; 9. a second tee joint; 10. a second intake check valve;
11. a connecting pipe; 12. a chamber bore; 13. a chamber; 14. a chamber filter screen; 15. a cooling device;
16. an integral filter screen; 17. a natural air intake integral filter screen;
18. the electric air supercharger intakes the whole filter screen.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
In the description of the present invention, when an element is referred to as being "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present.
The invention is further described with reference to the following figures and specific embodiments.
The invention aims to solve the problems of low combustion efficiency and serious tail gas pollution of a fuel engine. The concept of high-pressure and pressure-stabilizing air intake of the fuel engine is provided, and a pretreatment technology of the tail gas of the fuel engine is provided. The method comprises the following steps: two-stage supercharging is adopted to improve the output pressure of the turbocharger, and high-pressure and stable-pressure air inlet of the engine is realized. Is characterized in that: the low-power electric air supercharger is connected with a natural air inlet system in parallel and used as an air inlet supercharger of the tail gas turbocharger, so that the output pressure and the flow are increased, the defect that the tail gas turbocharger engine is not imported at low speed is overcome, and the requirement of high-revolution and large-flow air inlet is taken into consideration. The high-pressure and stable-pressure air intake is realized under the conditions of not increasing the capacities of a storage battery and a generator and not changing the structure of an engine, and the air intake device is particularly suitable for air supply of a diesel engine.
Example 1:
fig. 1 is a schematic structural view of a high-pressure turbocharger provided with a tee joint according to embodiment 1 of the present invention.
1 air inlet of tail gas turbo charger through 2 gas outlets that communicate electric air supercharger 3 of tee bend, the side mouth of tee bend 2 connects the natural air intake filter screen 6 of the first check valve 5 that admits air of admitting air, 3 air inlets of electric air supercharger set up filter screen 4 and outside intercommunication, 3 connection director 8 of electric air supercharger, by controller 8 control the operating condition of booster 3.
The electric air supercharger includes: one of a centrifugal fan structure, a turbo fan structure, an axial flow fan structure, a rotor structure, a pneumatic motor structure, a waist wheel structure, a propeller structure and a piston structure; the exhaust gas turbocharger compressor includes: single stage impeller or two stage impeller or multi stage impeller compressor.
The controller 8 is provided with or connected with a switch, a power supply controller or a relay, and the power supply of the controller 8 is controlled to be switched on and off.
The power supply controller or the relay can be controlled by a main power supply of an automobile engine, and when the automobile is shut down and powered off, the power supply of the controller is disconnected, so that the shutdown power consumption of the automobile is reduced.
Or: the signal input end of the controller 8 is connected with a throttle sensor or an accelerator sensor or an engine rotating speed sensor or an oil injection pulse signal sensor or a manual potentiometer, and the rotating speed and the starting and the stopping of the electric air supercharger are controlled by a sensor signal or a manual potentiometer signal; the potentiometer is arranged at any position outside the shell in an extending mode through a lead.
The electric air supercharger motor is controllable in positive and negative rotation. The controller 8 is a direct current controller or a three-phase electric controller and can control the rotating speed, start and stop, and forward and reverse rotation of the electric supercharger motor. The motor is controlled to be started or stopped in a forward or reverse direction by an internal command or an external signal of the controller 8. The controller 8 of the electric air supercharger may be arranged inside or outside the integral filter screen. The preferred controller is arranged in the filter screen, and the outside of the filter screen only retains the air outlet, the electric signal interface and the necessary adjusting knob.
The working principle of the embodiment 1 is as follows: the tail gas turbocharger 1 is large in power, if the high-pressure output is realized by matching with the electric air supercharger 3 with the same power, a high-pressure large-capacity storage battery and a generator must be matched, the existing engine structure is improved, and the existing fuel vehicle does not have the conditions. The invention adopts the low-power electric air supercharger 3 to be connected with a natural air intake system in parallel, so as to pressurize and supply air to the tail gas turbocharger 1 and improve the air intake pressure of the engine. The natural air intake system, namely the tee joint 2 and the natural air intake filter screen 6 are arranged between the electric air supercharger 3 and the tail gas turbocharger 1, and the natural air intake filter screen 6 comprises a natural air intake filter screen 6 with a first air intake check valve 5. When large-flow air intake, the low-power electric air supercharger 3 can not meet the requirement of the air intake flow of the engine, and negative pressure air intake phenomenon can be formed at the inlet of the tail gas turbocharger 1. At the moment, the natural air inlet filter screen 6 at the side port of the tee joint 2 starts to admit air, two paths of natural air inlet and electric air supercharger 3 which are connected in parallel are formed and simultaneously admit air, the negative pressure air inlet phenomenon is greatly eliminated, and the air inlet requirement of the high-speed running of the engine is met. And the capacity of a storage battery and a generator does not need to be increased, the structure of the engine does not need to be changed, high-pressure air supply is realized at lower cost, and the requirements of voltage stabilization and high-pressure air supply during high and low rotating speeds of the engine are met. The high-pressure air inlet requirement of the diesel engine is particularly met, the combustion efficiency of the diesel engine can be greatly improved, and the emission pollution is reduced.
The test vehicle is applied to the great wall of diesel oil h5, the diesel oil Isuzu and the heavy truck test vehicle for the heavy haul diesel oil for 1 year in the embodiment 1 of the invention, and the effect is good. No abnormal phenomenon exists, and the contradiction between NOx generation and smoke generation of the diesel engine is solved. The aims of synchronously reducing the emission of smoke and dust and NOx in the tail gas emission of the fuel engine and synchronously reducing the ultra-low emission are firstly realized in China. The emission reduction effect is very obvious.
The diesel test vehicle tail gas detection report proves that:
the emission of NOx of the diesel heavy truck is reduced to 31, which is 31/1500 of the national five-emission standard;
the smoke emission is reduced to 0.54; is 0.54/1.2 of the national emission standard;
the smoke emission of the diesel pickup is reduced to 0.08; is 0.08/1.2 of the national emission standard;
therefore, the invention successfully realizes the aim of synchronously reducing the emission of CO, CH, smoke dust and NOx in the tail gas of the fuel engine, and is an effective means for solving the problem of tail gas emission pollution of the fuel engine.
Example 2:
fig. 2 is a schematic structural diagram of a high-pressure turbocharger according to embodiment 2 of the present invention, in which a second tee joint is connected to the exhaust gas turbocharger;
on the basis of embodiment 1, a second tee joint 9 is connected to the exhaust gas turbocharger 1, a side port of the second tee joint 9 is communicated with a second air inlet check valve 10, an air inlet is communicated with a tee joint 2 through a connecting pipe 11, namely, a passage is established among an air inlet of the exhaust gas turbocharger 1, an air outlet of the electric air supercharger 3 and a natural air inlet filter screen 6 with a first air inlet check valve 5; the outlet of the second tee joint 9 serves as a high-pressure turbocharger outlet 7.
A second tee joint 9 and a second air inlet check valve 10 are arranged between the tail gas turbocharger 1 and the engine to serve as a second-stage air inlet device. When the engine runs at low speed, particularly idling, the electric air supercharger 3 is not started, the tail gas turbocharger 1 is not involved, the air intake flow cannot meet the air intake requirement of the engine, short-time negative pressure air intake can be formed, the combustion efficiency is low, and exhaust pollution is serious. At this time, the second intake check valve 10 is opened to meet the intake requirement at low engine speed. After the pressure of the air inlet of the engine rises, the second air inlet check valve 10 is automatically closed, and high-pressure air inlet of the engine is kept.
Example 3:
fig. 3 is a schematic structural diagram of a high-pressure turbocharger provided with a water cooling device on the exhaust gas turbocharger according to the embodiment of the invention;
on the basis of embodiment 1 or 2, a water cooling device 16 is arranged on the exhaust gas turbocharger 1, and the water cooling device is a water circulation system arranged on the shell of the turbocharger, can be an open external water jacket or a water circulating jacket with an inlet and an outlet, and can be added with water at any time. The temperature of the exhaust gas turbocharger 1 can be lowered by adding water to the inside of the water jacket. The water jacket and the tail gas turbocharger shell 1 are made of high-temperature-resistant and anti-frost cracking materials, and cannot be damaged due to low-temperature frost cracking and high temperature.
Example 4:
FIG. 4 is a schematic structural diagram of a high pressure turbocharger provided with a chamber according to an embodiment of the present invention; the air inlet of the tail gas turbocharger 1 is communicated with the air outlet of the electric air supercharger 3 through a chamber 13; the cavity 13 is surrounded by a cavity filter screen 14 provided with a cavity hole 12; the air inlet of the electric air supercharger 3 is communicated with an air inlet filter screen 4; the electric motor of the electric air supercharger 3 is connected with a controller 8, and the controller 8 controls the working state of the electric air supercharger 3.
Example 5:
the tee joint 2 and the electric air supercharger 3 can be provided with two independent air inlet filter screens or an integral filter screen. The integral filter screen can simplify the structure of the invention, reduce the volume, and arrange all the components together, thereby being convenient for debugging and installation. As shown in fig. 5, in example 5, the inlet and outlet of the electric air supercharger 3 are used as boundaries, and the interior of the whole filter screen is divided into two parts by a fixed partition plate, so as to form two air filter screens. One is a natural air intake integral filter screen 17, and the other is an electric air supercharger air intake integral filter screen 18. The electric air supercharger 3 is arranged on the fixed partition plate, the outlet of the electric air supercharger is communicated with the inlet of the tail gas turbocharger 1 and the natural air inlet integral filter screen 17, and the inlet of the electric air supercharger is communicated with the air inlet integral filter screen 18. The controller 8 of the electric air supercharger 3 may be arranged inside or outside the integral filter screen. Preferably, the controller is arranged inside the filter screen. The outside of the filter screen only keeps the air outlet, the electric signal interface and the necessary adjusting knob.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A high-pressure turbocharger comprises an exhaust gas turbocharger and an air supercharger; the method is characterized in that: the air inlet of the tail gas turbocharger is communicated with the air outlet of the air supercharger through a tee joint or a chamber; a filter screen is connected or arranged on a side opening of the tee joint, or the chamber is surrounded by the filter screen; the air inlet of the air supercharger is communicated with the air inlet filter screen; the air supercharger is an electric air supercharger or a mechanical air supercharger, a motor of the electric air supercharger is connected with a controller, and the controller controls the working state of the electric air supercharger.
2. A high-pressure turbocharger according to claim 1, wherein said electric air supercharger or said mechanical air supercharger comprises: one of a centrifugal fan structure, a turbo fan structure, an axial flow fan structure, a rotor structure, a pneumatic motor structure, a waist wheel structure, a propeller structure and a piston structure; the exhaust gas turbocharger compressor includes: single stage impeller or two stage impeller or multi stage impeller compressor.
3. The turbocharger according to claim 1, wherein the controller is a forward and reverse speed controller, and the electric motor of the electric air supercharger is a speed-adjustable motor with controllable forward and reverse rotation; the power supply input end of the controller is connected with the storage battery, the output end of the controller is connected with the electric air supercharger motor, and the positive and negative rotation speed and the starting and stopping of the electric air supercharger motor are controlled.
4. The turbocharger according to claim 1, wherein the controller is disposed in an air flow passage on an air inlet side or an air outlet side of the electric air supercharger.
5. The high-pressure turbocharger according to claim 1, wherein the filter screen of the three-way side port is provided with a first intake check valve.
6. The high-pressure turbocharger according to claim 1, wherein the controller is provided with or connected with a switch, a power supply controller or a relay, and the power supply of the controller is controlled to be switched on and off.
7. The high-pressure turbocharger according to claim 1, wherein the signal input end of the controller is connected with a throttle sensor, an accelerator sensor, an engine speed sensor, an oil injection pulse signal sensor or a manual potentiometer, and the rotation speed and the starting and stopping of the electric air supercharger are controlled by sensor signals or manual potentiometer signals; the potentiometer is arranged at any position outside the shell in an extending mode through a lead.
8. The high-pressure turbocharger according to any one of claims 1, 2, 3, 4, 5, 6 and 7, wherein a second tee joint is connected or arranged at the outlet of the exhaust turbocharger, and a side port of the second tee joint is communicated with an outlet of a second inlet check valve; the air inlet of the second air inlet check valve is communicated with the outside through a filter screen, or communicated with the air inlet of the tail gas turbocharger, and the tail gas turbocharger shares one filter screen, or the second tee joint and the air inlet check valve are wrapped inside the whole filter screen.
9. The high-pressure turbocharger according to any one of claims 1, 2, 3, 4, 5, 6 and 7, wherein the outlet of the tee joint or the chamber is arranged outside, the rest part of the tee joint or the chamber is wrapped inside the integral filter screen, the integral filter screen is divided into a natural air inlet integral filter screen and an electric air supercharger air inlet integral filter screen by a middle partition plate, the electric air supercharger is arranged on the partition plate, the air inlet of the electric air supercharger is communicated with the electric air supercharger air inlet integral filter screen, and the air outlet of the electric air supercharger is communicated with the natural air inlet integral filter screen and the tail gas air supercharger air inlet through the chamber or the tee joint; the controller is arranged in the filter screen, and the power supply, the electric signal interface and the adjusting knob are arranged outside the filter screen.
10. A high pressure turbocharger according to any one of claims 1, 2, 3, 4, 5, 6 and 7, wherein a water cooling device is arranged on the turbocharger, and the water cooling device is a water circulation system arranged on the housing of the turbocharger, and the temperature of the turbocharger is reduced through water circulation or water evaporation cooling.
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| CN202010423901.7A CN111485994A (en) | 2020-05-19 | 2020-05-19 | High-pressure turbocharger |
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| CN202010423901.7A CN111485994A (en) | 2020-05-19 | 2020-05-19 | High-pressure turbocharger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024244699A1 (en) * | 2023-05-30 | 2024-12-05 | 江苏毅合捷汽车科技股份有限公司 | Electrically assisted turbocharger |
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| CN212130613U (en) * | 2020-05-19 | 2020-12-11 | 李桂江 | High-pressure turbocharger |
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|---|---|---|---|---|
| CN101215989A (en) * | 2008-01-17 | 2008-07-09 | 上海交通大学 | Exhaust turbocharging system for internal combustion engines with natural induction |
| CN201679558U (en) * | 2010-01-14 | 2010-12-22 | 江苏金驰车辆有限公司 | Turbocharged intercooled mining explosion-proof diesel engine |
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| CN212130613U (en) * | 2020-05-19 | 2020-12-11 | 李桂江 | High-pressure turbocharger |
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| WO2024244699A1 (en) * | 2023-05-30 | 2024-12-05 | 江苏毅合捷汽车科技股份有限公司 | Electrically assisted turbocharger |
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