CN111486035A - Air inlet pressure stabilizer of fuel engine - Google Patents
Air inlet pressure stabilizer of fuel engine Download PDFInfo
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- CN111486035A CN111486035A CN202010423451.1A CN202010423451A CN111486035A CN 111486035 A CN111486035 A CN 111486035A CN 202010423451 A CN202010423451 A CN 202010423451A CN 111486035 A CN111486035 A CN 111486035A
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- supercharger
- electric air
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- 239000003381 stabilizer Substances 0.000 title claims abstract description 64
- 239000000446 fuel Substances 0.000 title claims abstract description 46
- 238000005192 partition Methods 0.000 claims abstract description 23
- 230000033228 biological regulation Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000002441 reversible effect Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000002283 diesel fuel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004071 soot Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
- F02M35/10157—Supercharged engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/024—Air cleaners using filters, e.g. moistened
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10308—Equalizing conduits, e.g. between intake ducts or between plenum chambers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
The invention discloses an air inlet pressure stabilizer of a fuel engine.A pressure stabilizer outlet arranged on an end plate is communicated with the outside, and the output airflow of an electric air pressure booster is output through the pressure stabilizer outlet; the electric air supercharger is arranged on the end plate, or the end plate is connected with the partition plate through a framework, the electric air supercharger is arranged on the partition plate, and filter screens are arranged outside the inlet and the outlet of the electric air supercharger to form an inlet cavity and an outlet cavity which are separated by the partition plate; the outlet chamber, the outlet of the electric air supercharger and the outlet of the voltage stabilizer are communicated, and the motor of the electric air supercharger is connected with the controller. The invention is a pretreatment technology of tail gas of a fuel engine, which is essentially different from the prior aftertreatment technology, reduces the emission of tail gas pollutants by improving the combustion efficiency and effectively solves the contradiction between the generation of NOx and the generation of CO, CH and smoke dust of the fuel engine.
Description
Technical Field
The invention belongs to the technical field of fuel engines, and particularly relates to an air inlet pressure stabilizer of a fuel engine.
Background
The problems of low combustion efficiency, serious tail gas pollution and the like of the existing fuel engine generally exist. The root causes of this problem are: the contradictory relationship between the NOx generation and the CO, CH and smoke generation of the fuel engine is the trade-off. Reducing NOx emissions increases CO, CH, soot emissions; reducing CO, CH, soot emissions increases NOx emissions. The problem is not really solved at present, even if the galloping and the public cannot be well correspondingly solved, if the contradiction cannot be really solved for a long time, the fuel vehicle is in danger of being eliminated.
Disclosure of Invention
In view of the above, the present invention aims to solve the problems of incomplete combustion, low thermal efficiency, serious tail gas pollution, etc. of the fuel engine, and mainly solves the following problems: the trade-off between NOx production and CO, CH, soot production in fuel engines. The fuel engine with the air inlet pressure stabilizer realizes the purposes of pressure-stabilizing air inlet and full-range sufficient air inlet, and synchronously reducing the emission of CO, CH, smoke dust and NOx in tail gas of the pressure-stabilizing air inlet engine and synchronously reducing the emission of ultralow emission.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an air inlet pressure stabilizer of a fuel engine comprises a filter screen, a pressure stabilizer outlet, an electric air supercharger, a controller and an end plate; the method is characterized in that: the end plate is provided with a pressurizer outlet which is communicated with the outside, and the output airflow of the electric air pressurizer is output through the pressurizer outlet; the electric air supercharger is arranged on the end plate, a filter screen is arranged outside the electric air supercharger, and an inlet and an outlet of the electric air supercharger are wrapped inside the electric air supercharger to form an inlet chamber and an outlet chamber which are communicated with each other inside the electric air supercharger; or: the end plate is connected with the partition plate through a framework, the electric air supercharger is arranged on the partition plate, filter screens are arranged outside the inlet and the outlet of the electric air supercharger, and the inlet and the outlet of the electric air supercharger are respectively wrapped in the filter screens to form an inlet cavity and an outlet cavity which are separated by the partition plate; the outlet chamber, the outlet of the electric air supercharger and the outlet of the voltage stabilizer are communicated, and the motor of the electric air supercharger is connected with the controller, and the controller controls the working state of the electric air supercharger.
Or: the end plate is connected with the partition plate through a framework, the electric air supercharger is arranged on the partition plate or arranged on the end plate, filter screens are arranged outside the inlet and the outlet of the electric air supercharger, and the inlet and the outlet of the electric air supercharger are respectively wrapped in the filter screens to form an inlet cavity and an outlet cavity which are separated by the partition plate;
the separator is sealed or unsealed, the unsealed separator comprising: skeleton, foraminiferous board.
The inlet of the electric air supercharger is connected with the clapboard in a sealing or non-sealing way.
The outlet of the electric air supercharger is communicated with the outlet of the voltage stabilizer, and an air flow channel is communicated with the outlet chamber of the electric air supercharger. When the electric air supercharger is arranged on the end plate, the inlet and outlet chambers of the electric air supercharger are communicated. The electric air supercharger outlet chambers are partitioned when the electric air supercharger is disposed on the partition.
The electric air supercharger is arranged on the end plate, the inlet and the outlet are communicated in the filter screen, and the inlet and the outlet chamber are a chamber. The outlet of the electric air supercharger faces the outlet of the voltage stabilizer, namely the air inlet of the engine, and engine ram air inlet is formed. The engine is operating in an air-breathing state. When the supercharger works, air is sucked in through the filter screen, and the air is output to the air inlet of the engine from the outlet to form punching pressure on the air inlet of the engine. When the air suction flow of the engine is smaller than the output flow of the air supercharger, redundant air flows out along an air flow passage between the outlet of the electric air supercharger and the outlet of the voltage stabilizer, returns to the air inlet of the electric air supercharger and continues to be output circularly. When the air suction flow of the engine is larger than the exhaust flow of the air supercharger, the output air flow of the air supercharger cannot meet the air suction flow of the engine, external air flows into an air flow channel between the outlet of the electric air supercharger and the outlet of the pressure stabilizer through the filter screen and then flows into the air inlet of the engine to form two paths of air inlet, the output flow of the electric air supercharger is made up for deficiency, negative pressure air inlet is avoided or reduced, and therefore the low-power electric air supercharger can be used for achieving sufficient air inlet of the engine. Because the air intake flow is sufficient, relatively stable air intake pressure is formed at the air inlet of the engine, and the sufficient air intake flow of the engine is ensured.
The electric air supercharger is arranged on the partition plate, the inlet and the outlet of the electric air supercharger are separated by the partition plate in the filter screen, which is equivalent to the inlet and the outlet of the electric air supercharger which are communicated with each other through the filter screen and then communicated with each other outside the filter screen. When the air suction flow of the engine is smaller than the exhaust flow of the air supercharger, redundant air flows out along an air flow channel between the electric air supercharger and the outlet of the pressure stabilizer, overflows through a filter screen of the outlet chamber and flows into the atmosphere. Meanwhile, the air inlet of the electric air supercharger still sucks air, which is equivalent to air overflowing the filter screen of the outlet chamber, flows into the inlet chamber through the filter screen, returns to the air inlet of the electric air supercharger and continues to be output circularly. When the air suction flow of the engine is larger than the exhaust flow of the air supercharger, the air supercharger can not meet the air suction flow of the engine, external air flows into an air flow channel between the outlet of the electric air supercharger and the outlet of the pressure stabilizer through the outlet chamber filter screen and then flows into the air inlet of the engine to form two paths of air inlet, the defects of low power and insufficient output flow of the electric air supercharger are overcome, and the sufficient air inlet flow of the engine is ensured. Due to the sufficient flow, a relatively stable intake pressure is established at the engine intake. Compared with the arrangement of the electric air supercharger on the end plate, the structure has the advantage that the low-speed intake pressure of the engine is slightly higher.
The pressure-stabilizing air intake engine does not generate overpressure air intake, and the phenomenon of pre-ignition or detonation of the engine is formed. Meanwhile, the negative pressure air intake phenomenon is effectively inhibited, and the full air intake in the whole operation process of the whole engine is realized.
Further, the electric air supercharger includes: the fan comprises a centrifugal fan structure, a fan blade structure, a turbine fan structure, an axial flow fan structure, a rotor structure, a pneumatic motor structure and a propeller structure.
Furthermore, a tee joint is arranged in the outlet chamber, the tee joint is a common tee joint or a tee joint with a check valve at a side opening, and two openings of the tee joint are respectively connected with an air outlet of the electric air supercharger and an outlet of the pressure stabilizer. The electric air supercharger is arranged on the partition plate or the tee joint.
And a tee joint with a check valve at a side port is arranged in the outlet chamber to form the engine air inlet pressure stabilizer with low-revolution pressure boosting and high-revolution pressure stabilizing functions. Is characterized in that: when the engine rotates at a low speed, the pressure of the air flow output by the supercharger is higher than the atmospheric pressure, the check valve is closed, the pressure is ensured not to leak, and high-pressure air supply is formed. When the engine has high revolution or the pressure of the air flow output by the supercharger is lower than the atmospheric pressure, the check valve is opened to supplement the air intake, so that the stability of the air intake pressure is ensured. The intake stabilizer of this structure is preferably: an automatic pressure control system is adopted to be matched with a low-power electric air supercharger to form the high-pressure air inlet voltage stabilizer. The air inlet pressure stabilizer with the structure is particularly suitable for air inlet of a compression ignition engine.
Further, an air inlet duct is arranged on the end plate, the electric air supercharger is arranged on the air inlet duct or on the partition plate, and an air outlet of the electric air supercharger faces the air inlet duct to form a jet type air inlet structure.
The intake duct includes: one of the horn mouth shape, the tubular shape and the air inlet duct shape of the jet engine is characterized in that: the air inlet is smooth.
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; when the controller is a forward speed regulation controller and a reverse speed regulation controller, the working state of the electric air supercharger is manually controlled. The positive rotation, the negative rotation and the revolution of the electric air supercharger are artificially controlled according to the requirement of the running of the engine.
Or the controller is any one or more of a pressure automatic control system, a flow automatic control system or a temperature automatic control system, and the working state of the electric air supercharger is automatically controlled by the controller according to any one or more of the air inlet temperature, the pressure and the flow sensor signal of the engine; one or more of a pressure sensor, a temperature sensor and a flow sensor are correspondingly arranged in the outlet of the pressure stabilizer or between the outlet of the pressure stabilizer and the air inlet of the engine.
When the controller is an automatic pressure control system, the working state and the intake pressure change of the electric air supercharger are automatically controlled according to the output signal of the intake pressure sensor. The internal pressure of the outlet chamber can be kept stable within a set range, and the negative pressure air inlet phenomenon and the overpressure air inlet phenomenon can not occur. The engine is operated near optimum.
Further, the controller is arranged inside the filter screen, a shell is arranged outside the filter screen of the voltage stabilizer, and one or more air inlets are formed in the shell. The more than one air inlets are communicated or not communicated. The shell is provided with a connecting device or a connecting structure. The controller sets up inside the filter screen, the power and the signal of telecommunication interface and the adjusting knob setting of controller are in the shell is outside, still include adjusting knob passes through the wire and extends the optional position that sets up outside the shell.
The outer part of the filter screen can also be provided with a shell and a connecting device or a connecting structure, and the shell is coated outside the filter screen and is provided with an air inlet hole; the connecting device or the connecting structure is arranged on the shell and corresponds to the connection of the matched equipment.
The shell is provided with a corresponding air inlet hole, and the air inlet requirement of the voltage stabilizer can be met. The housing is provided for protection against rain and water, which is necessary in particular for voltage regulators used in the open air.
The connecting device or the connecting structure is used for meeting the requirements of connection and installation of the voltage stabilizer and matched equipment.
Further, the controller is arranged in the filter screen and in an air inlet or exhaust flow passage. The electric air supercharger dissipates heat for the controller. Reduce the controller and generate heat and prolong the service life. The power supply, the electric signal interface and the adjusting knob of the controller are arranged outside the filter screen, so that the connection and debugging are convenient.
Further, a switch or a power supply controller or a relay is arranged or connected between the controller and the power supply to control the on-off of the power supply of the controller. The control end of the power controller or the relay is directly or indirectly connected with a power switch of the engine, and the power of the controller is disconnected when the engine is stopped, so that the power consumption of the storage battery is reduced.
Furthermore, an airflow guiding device is arranged inside the outlet of the voltage stabilizer.
The airflow directing device may be: the guide vane, the guide groove and the guide impeller are used for changing the direction of the airflow in the air outlet.
Furthermore, the signal input end of the controller 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 the manual potentiometer; the potentiometer is arranged at any position outside the shell in an extending mode through a lead.
Further, a second air supercharger is also arranged; the outlet of the pressure stabilizer is connected with a second air supercharger, and the air outlet of the second air supercharger is connected with the air inlet of the fuel engine; or the second air supercharger is connected with the electric air supercharger in parallel, and the air outlet of the second air supercharger is also connected with the outlet of the voltage stabilizer and is connected with the air inlet of the fuel engine through the outlet of the voltage stabilizer.
When the two air superchargers are connected in parallel, the respective outlets are provided with check valves, air can only be discharged and can not be introduced, so that mutual noninterference between the two air superchargers is ensured, and the air inlet flow of the air inlet of the engine is increased.
Compared with the prior art, the invention has the following beneficial effects:
the invention has the advantages that:
(1) the fuel engine air inlet pressure stabilizer is composed of an inlet cavity, an outlet cavity, a filter screen, an electric air supercharger, a controller and a partition plate, supplies air to the engine, realizes full air inlet of the engine in the whole process and ensures that the inside of a cylinder is fully combusted;
(2) the invention adopts the low-power electric air supercharger to be connected with the natural air inlet system in parallel, and finishes the work which can be finished by the high-power electric air supercharger. The engine realizes the pressure-stabilizing air intake without increasing the capacity of a storage battery and a generator and changing the structure of the engine, and is suitable for supplying air to gasoline and diesel engines. Is an effective means for solving the problem of tail gas emission pollution of the fuel engine. The problem of emission pollution of the fuel engine is successfully solved;
(3) the invention realizes the pressure-stabilizing air intake of the fuel engine, is a pretreatment technology of the tail gas of the fuel engine, and is essentially different from the prior aftertreatment technology; the invention reduces the emission of tail gas pollutants by improving the combustion efficiency. The method effectively solves the contradiction between the generation of NOx and the generation of CO, CH and smoke dust of the fuel engine, and firstly realizes the aims of synchronously reducing the emission of CO, CH, smoke dust and NOx in the tail gas of the fuel engine and synchronously reducing the emission of ultralow emission at home.
Drawings
FIG. 1 is a schematic structural view of an electric air supercharger provided in a partition according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an electric air supercharger arranged on an end plate according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an auxiliary air intake with a check valve according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a jet intake configuration in accordance with an embodiment of the present invention.
Wherein:
1. a partition plate; 2. a filter screen; 3. an end plate; 4. a power and signal line interface; 5. adjusting a knob;
6. a controller; 7. a potentiostat outlet; 8. an electric motor; 9. an electric air supercharger; 10. a chamber skeleton;
11. an outlet chamber; 12. an inlet chamber; 13. an intake check valve; 14, a tee joint; 15. an air intake duct;
16. an end plate connector.
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.
Example 1:
fig. 1 is a schematic structural view of an intake stabilizer for a fuel engine according to embodiment 1 of the present invention;
the electric air supercharger 9 is arranged on the partition board 1, the partition board 1 is connected with the end plate 3 through the cavity framework 10 and jointly forms an outlet cavity 11 and an inlet cavity 12, and the filter screen 2 is arranged outside the inlet cavity and the outlet cavity to wrap the inlet cavity and the outlet cavity to form an air inlet filter. And a pressurizer outlet 7 is arranged on the outlet chamber end plate 3 and is directly communicated with the outside. The power supply input end of the electric motor 8 of the electric air supercharger 9 is connected with the output end of the controller 6. The power input end of the controller, the interface 4 of the signal input end and the adjusting knob 5 are arranged outside the outlet chamber end plate 3. The controller 6 controls the working state of the electric air supercharger 9 to form the fuel engine air inlet pressure stabilizer. The controller 6 is arranged in the filter screen 2 and in an air inlet or exhaust flow passage; the electric air supercharger 9 is used for dissipating heat of the controller 6; the heating of the controller 6 is reduced, and the service life is prolonged;
the inlet chamber and the outlet chamber are isolated from the atmosphere, and external air must enter the inlet chamber and the outlet chamber through the filter screen 2. The air outlet of the outlet chamber is not provided with a filter screen and can be directly connected with the air inlet of the engine, and the outlet chamber is a chamber capable of air inlet and air exhaust. Maintaining the pressure in the outlet chamber substantially constant.
The controller 6 of the invention is a positive and negative rotation speed-regulating controller, the motor 8 of the electric air supercharger 9 is a speed-regulating motor with controllable positive and negative rotation; when the controller 6 is a forward and reverse speed regulation controller, the working state of the electric air supercharger 9 is manually controlled; the positive rotation, the negative rotation and the revolution of the electric air supercharger 9 are artificially controlled according to the requirement of the running of the engine;
or the controller 6 is any one or more of a pressure automatic control system, a flow automatic control system or a temperature automatic control system, and is any one or more of the air inlet temperature, the pressure and the flow sensor signal of the engine, and the working state of the electric air supercharger 9 is automatically controlled by the controller 6; one or more of a pressure sensor, a temperature sensor and a flow sensor are correspondingly arranged in the outlet of the pressure stabilizer outlet 7 or between the outlet of the pressure stabilizer outlet 7 and the air inlet of the engine;
when the controller 6 is an automatic pressure control system, the working state and the intake pressure change of the electric air supercharger are automatically controlled according to the output signal of the intake pressure sensor; the internal pressure of the outlet chamber can be kept stable within a set range, and the negative pressure air inlet phenomenon and the overpressure air inlet phenomenon can not occur; the engine is operated near optimum.
A switch or a power supply controller or a relay is arranged or connected between the controller 6 and the power supply to control the on-off of the power supply of the controller; the control end of the power supply controller or the relay is connected with a power switch of the engine, and the power supply of the controller is disconnected when the engine is stopped, so that the power consumption of the storage battery is reduced;
the signal input end of the controller 6 can also be connected with a throttle sensor or an accelerator sensor or an engine speed sensor or an oil injection pulse signal or a manual potentiometer, the sensor signal or the manual potentiometer controls the rotating speed and the starting and stopping of the electric air supercharger, and the controller also comprises the potentiometer which is arranged at any position outside the shell in an extending mode through a lead.
The filter screen can also be provided with a shell outside, and the shell is provided with one or more air inlets. The more than one air inlets are communicated or not communicated. The housing may additionally be provided with attachment means or attachment structures. The controller 6 is arranged in the filter screen, the power supply and electric signal interface 4 of the controller 6 and the adjusting knob 5 are arranged outside the shell, and the adjusting knob 5 can also be arranged at any position outside the shell in an extending mode through a lead.
The inside air current guider that has still set up of stabiliser export 7, air current guider can be: the guide vane, the guide groove and the guide impeller are used for changing the direction of the airflow in the air outlet.
When the electric air supercharger works, when the output air flow of the electric air supercharger 9 is larger than the air inlet flow of an engine, redundant air is discharged from a filter screen of the outlet chamber, and the internal pressure of the outlet chamber is kept stable in a certain range. Maintaining the pressure in the outlet chamber substantially constant. The phenomenon of pre-ignition or detonation of the engine can not occur due to overpressure air intake. When the output air flow of the electric air supercharger 9 is smaller than the air inlet flow of the engine, the external air is sucked from the filter screen of the outlet chamber, the internal pressure of the outlet chamber is kept stable within a certain range, the negative pressure air inlet phenomenon is effectively inhibited, and the purpose of air inlet pressure stabilization is achieved. And the full air intake in the whole engine operation process is realized.
The invention is applied to the Dihao 715 and the standard 307 test vehicle for 3 years, and has good effect. The method has no abnormal phenomenon, and solves the contradiction between the NOx generation and the CO, CH and smoke generation of the fuel engine. The aims of synchronously reducing the emission of CO, CH, smoke dust and NOx in the tail gas of the fuel engine and synchronously reducing the ultra-low emission are firstly realized in China. The power is increased by 30 percent, the oil is saved by 20 percent, and the emission reduction effect is very obvious. The results of the annual tail gas test are shown in Table 1 below.
TABLE 1 comparison of annual inspection results of tail gas before and after installation of voltage stabilizer on gasoline test vehicle
Example 2:
fig. 2 is a schematic structural view of an intake stabilizer for a fuel engine according to embodiment 2 of the present invention;
the position of the electric air supercharger 9 is different in embodiment 2, the electric air supercharger 9 is arranged on the end plate 3 through the end plate connecting piece 16, the end plate 3 is connected with the chamber framework 10, the filter screen 2 is arranged outside, and because the partition plate 1 is not arranged, a chamber with the inside communicated with the inside is formed to be used as an air inlet filter.
Other structures and operation principles in embodiment 2 are the same as those in embodiment 1. The fuel engine operates in an air-breathing state. When the supercharger works, air is sucked in through the filter screen, and the air is output to the air inlet of the engine from the outlet to form punching pressure on the air inlet of the engine. When the air suction flow of the engine is smaller than the output flow of the air supercharger, redundant air flows out along an air flow passage between the outlet of the electric air supercharger and the outlet of the voltage stabilizer, returns to the air inlet of the electric air supercharger and continues to be output circularly. When the air suction flow of the engine is larger than the exhaust flow of the air supercharger, the output air flow of the air supercharger cannot meet the air suction flow of the engine, external air flows into an air flow channel between the outlet of the electric air supercharger and the outlet of the pressure stabilizer through the filter screen and then flows into the air inlet of the engine to form two paths of air inlet, the output flow of the electric air supercharger is made up for deficiency, negative pressure air inlet is avoided or reduced, and therefore the low-power electric air supercharger can be used for achieving sufficient air inlet of the engine. Because the air intake flow is sufficient, relatively stable air intake pressure is formed at the air inlet of the engine, and the sufficient air intake flow of the engine is ensured.
Example 3:
fig. 3 is a schematic structural diagram of an intake stabilizer of a fuel engine provided with a check valve for assisting air intake in embodiment 3 of the present invention;
The invention is applied to the great wall h5 of diesel oil, the fifty-bell diesel oil and the heavy truck test vehicle of heavy-duty diesel oil for 1 year, and has good effect. 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 results of the annual tail gas test are shown in Table 2 below.
TABLE 2 comparison of annual inspection results of tail gas before and after installation of stabilizer on diesel oil vehicle
Example 4:
FIG. 4 is a schematic structural diagram of an intake stabilizer of a fuel engine provided with jet intake in embodiment 4 of the present invention;
in embodiment 4, an intake duct 15 is provided between the outlet 7 of the pressurizer and the outlet of the electric air pressurizer 9 in the outlet chamber based on embodiment 1, thereby forming a jet engine intake pressurizer. The inlet duct 15 may be bell-mouthed, tubular, jet engine inlet duct shaped. Is characterized in that: the flow speed of the airflow output by the outlet of the pressure stabilizer is faster through the air inlet duct, and the gas pressure is higher.
Example 5:
or the second air supercharger is positioned in the chamber and connected with the electric air supercharger 9 in parallel, the air outlet of the second air supercharger and the air outlet of the electric air supercharger 9 are connected with the outlet 7 of the pressure stabilizer together, or the air outlet of the second air supercharger and the air outlet of the electric air supercharger 9 are connected with the tee joint 14 or the air inlet duct 15 together, and then the second air supercharger and the air outlet of the electric air supercharger are connected with the air inlet of the fuel engine through the outlet of the pressure stabilizer. When the two air superchargers are connected in parallel, the respective outlets can be provided with check valves, air can only be discharged but not be introduced, mutual noninterference between the two air superchargers is ensured, and the air inlet flow of the air inlet of the engine is increased.
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. The fuel engine air inlet pressure stabilizer comprises a filter screen, a pressure stabilizer outlet, an electric air supercharger, a controller and an end plate; the method is characterized in that: the end plate is provided with a pressurizer outlet which is communicated with the outside, and the output airflow of the electric air pressurizer is output through the pressurizer outlet;
the electric air supercharger is arranged on the end plate, a filter screen is arranged outside the electric air supercharger, and an inlet and an outlet of the electric air supercharger are wrapped inside the electric air supercharger to form an inlet chamber and an outlet chamber which are communicated with each other inside the electric air supercharger;
or: the end plate is connected with the partition plate through a framework, the electric air supercharger is arranged on the partition plate or on the end plate, filter screens are arranged outside the inlet and the outlet of the electric air supercharger to form an inlet cavity and an outlet cavity which are separated by the partition plate, and the inlet and the outlet of the electric air supercharger are respectively wrapped in the filter screens; the separator is sealed or unsealed;
the outlet chamber, the outlet of the electric air supercharger and the outlet of the voltage stabilizer are communicated, and the motor of the electric air supercharger is connected with the controller, and the controller controls the working state of the electric air supercharger.
2. A fuel engine intake pressure regulator according to claim 1, characterized in that: the electric air supercharger includes: the fan comprises a centrifugal fan structure, a fan blade structure, a turbine fan structure, an axial flow fan structure, a rotor structure, a pneumatic motor structure and a propeller structure.
3. A fuel engine intake pressure regulator according to claim 1, characterized in that: 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;
or: the controller is any one or more of a pressure automatic control system, a flow automatic control system or a temperature automatic control system, is any one or more of the air inlet temperature, the pressure and the flow sensor signal of the engine, and automatically controls the working state of the electric air supercharger through the controller; one or more of a pressure sensor, a temperature sensor and a flow sensor are correspondingly arranged in the outlet of the pressure stabilizer outlet or between the outlet of the pressure stabilizer and the air inlet of the engine.
4. A fuel engine intake pressure regulator according to claim 1, characterized in that: a shell is arranged outside the filter screen of the voltage stabilizer, and one or more air inlets are formed in the shell; the more than one air inlets are communicated or not communicated; the shell is also provided with a connecting device or a connecting structure; the controller sets up inside the filter screen, the power and the signal of telecommunication interface and the adjusting knob setting of controller are in the shell is outside, still include adjusting knob passes through the wire and extends the optional position that sets up outside the shell.
5. A fuel engine intake pressure regulator according to claim 1, characterized in that: a switch or a power supply controller or a relay is arranged or connected between the controller and the power supply to control the on-off of the power supply of the controller; the control end of the power controller or the relay is directly or indirectly connected with a power switch of the engine, and the power of the controller is cut off when the engine is stopped.
6. A fuel engine intake pressure regulator according to claim 1, characterized in that: an airflow guide device is arranged inside the outlet of the voltage stabilizer; the airflow guiding device is as follows: one or more of guide vanes, guide grooves and guide impellers are used for changing the direction of the airflow inside the air outlet.
7. A fuel engine intake pressure regulator according to claim 1, characterized in that: the signal input end of the controller 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.
8. A fuel engine intake pressure regulator according to claims 1, 2, 3, 4, 5, 6, 7, characterized in that: a second air supercharger is also arranged; the outlet of the pressure stabilizer is connected with a second air supercharger, and the air outlet of the second air supercharger is connected with the air inlet of the fuel engine; or the second air supercharger is connected with the electric air supercharger in parallel, and the air outlet of the second air supercharger is also connected with the outlet of the voltage stabilizer and is connected with the air inlet of the fuel engine through the outlet of the voltage stabilizer.
9. A fuel engine intake pressure regulator according to any one of claims 1, 2, 3, 4, 5, 6, and 7, wherein: the outlet chamber is internally provided with a tee joint, the tee joint is a common tee joint or a tee joint with a check valve at a side opening, and two openings of the tee joint are respectively connected with an air outlet of the electric air supercharger and an outlet of the voltage stabilizer.
10. A fuel engine intake pressure regulator according to any one of claims 1, 2, 3, 4, 5, 6, and 7, wherein: the end plate is provided with an air inlet duct, and an air outlet of the electric air supercharger faces the air inlet duct to form a jet type air inlet structure.
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| CN202010423451.1A CN111486035A (en) | 2020-05-19 | 2020-05-19 | Air inlet pressure stabilizer of fuel engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010423451.1A CN111486035A (en) | 2020-05-19 | 2020-05-19 | Air inlet pressure stabilizer of fuel engine |
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| CN212130647U (en) * | 2020-05-19 | 2020-12-11 | 李桂江 | Air inlet pressure stabilizer of fuel engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR19980050693A (en) * | 1996-12-21 | 1998-09-15 | 박병재 | Air Cleaner of Intake Unit |
| CN206468429U (en) * | 2016-09-14 | 2017-09-05 | 杨成元 | A kind of gas inlet rubber tube sets double air inlet turbochargers |
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