CN209875295U - Electric control layered air inlet system for layered scavenging engine - Google Patents
Electric control layered air inlet system for layered scavenging engine Download PDFInfo
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- CN209875295U CN209875295U CN201920091879.3U CN201920091879U CN209875295U CN 209875295 U CN209875295 U CN 209875295U CN 201920091879 U CN201920091879 U CN 201920091879U CN 209875295 U CN209875295 U CN 209875295U
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- 230000002000 scavenging effect Effects 0.000 title claims abstract description 54
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- 239000000446 fuel Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The utility model discloses an electric control layered air intake system for a layered scavenging engine, which comprises an air intake and oil injection module, a crankshaft position sensor, a first temperature sensor, a second temperature sensor and an electronic control unit; the air intake and oil injection module comprises a shell, a first air filter, a second air filter, a first throttle valve, a second throttle valve, a first steering engine, a second steering engine, a first swing arm, a second swing arm, a fourth swing arm, a first pull rod, a second pull rod, a first throttle valve position sensor, a second throttle valve position sensor and an oil injector. When the electronic control unit works, the electronic control unit controls the first steering engine, the second steering engine and the oil sprayer to work according to the sensing data of the crankshaft position sensor, the first temperature sensor, the second temperature sensor, the first throttle position sensor and the second throttle position sensor.
Description
Technical Field
The utility model relates to a layering two-stroke internal-combustion engine field of admitting air especially relates to an automatically controlled layering air intake system for layering scavenging engine.
Background
The internal combustion engine generates a large amount of heat energy to convert mechanical operation into kinetic energy through violent combustion of working media in a cylinder, and then outputs power to work outwards. The internal combustion engine in a broad sense includes not only a reciprocating piston type internal combustion engine, a rotary piston type engine and a free piston type engine but also a gas turbine of a rotary vane type, a jet engine and the like. Piston internal combustion engines are the most common of the reciprocating piston types. The piston type internal combustion engine mixes fuel and air and burns in a cylinder of the engine, and the released heat energy enables the cylinder to generate high-temperature and high-pressure fuel gas. The gas expands to drive the piston to do work, and then the mechanical work is output through a crank-link mechanism or other mechanisms to drive the driven machinery to work. The two-stroke reciprocating piston engine features simple structure, high power per liter, large thrust-weight ratio and low cost.
Two-stroke engines differ from four-stroke engines in intake and exhaust. The air intake of the two-stroke engine firstly enters into the crankcase and then is swept into the combustion chamber from the crankcase through the scavenging passage, and the air intake valve, the scavenging valve and the exhaust valve are generally piston valves or reed valves, so that the valve mechanism is simplified easily. The simple gas distribution often has certain defects. The scavenging process via the crankcase results in a loss of fresh mixture escape. The main measures aiming at the problems of the two-stroke gasoline engine are as follows: 1. adopting in-cylinder direct injection technology; 2. an exhaust tuning technique; 3. layered scavenging techniques, and the like. A reliable stratified charge system is needed to support the stratified scavenging function aiming at the stratified scavenging technology. Stratified scavenging is a scavenging method in which a stratified medium is formed between the mixture and the exhaust gas during the scavenging process of the two-stroke engine, and the medium takes charge of short-circuit loss. This requires a stratified intake system consisting of a main intake channel, which is formed by the mixture of air and fuel, and a secondary intake channel, which is formed by the pure air.
In order to meet the increasingly strict emission regulations, the two-stroke engine needs to introduce new technologies such as stratified scavenging and the like to reduce the emission. The air inlet pipe throttles of the traditional carburetor type stratified scavenging engine are often in mechanical linkage, the relative opening degree between the two throttles is determined, the controllability is lacked, and certain restriction is brought to the stratified scavenging effect of the engine.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the layering control problem of admitting air to current automatically controlled two-stroke layering scavenging engine provides an automatically controlled layering air intake system for layering scavenging engine, has improved the effect of layering scavenging, and then reduces two-stroke engine's oil consumption.
The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme:
the electronic control layered air intake system for the layered scavenging engine comprises an air intake and oil injection module, a crankshaft position sensor, a first temperature sensor, a second temperature sensor and an electronic control unit;
the air intake and oil injection module comprises a shell, a first air filter, a second air filter, a first throttle valve, a second throttle valve, a first steering engine, a second steering engine, a first swing arm, a second swing arm, a fourth swing arm, a first pull rod, a second pull rod, a first throttle valve position sensor, a second throttle valve position sensor and an oil injector;
the shell is fixedly connected with an air inlet of the layered scavenging engine, and a first air inlet channel, a second air inlet channel and an oil injection channel are arranged in the shell; the second air filter is arranged at one end of the second air inlet channel, and the other end of the second air inlet channel is communicated with an inlet of an auxiliary air inlet channel of the stratified scavenging engine; the first throttle valve and the second throttle valve are respectively arranged in the first air inlet channel and the second air inlet channel and are respectively used for controlling the opening and closing degrees of the first air inlet channel and the second air inlet channel; the fuel injector is arranged at one end of the fuel injection channel, and the other end of the fuel injection channel is communicated with the first throttle valve and a first air inlet channel between inlets of a main air inlet channel of the stratified scavenging engine;
the first steering engine and the second steering engine are both arranged on the shell;
one end of the first swing arm is vertically and fixedly connected with the tail end of the output shaft of the first steering engine, and the other end of the first swing arm is hinged with one end of the first pull rod; the other end of the first pull rod is hinged with one end of the second swing arm; the other end of the second swing arm is vertically and fixedly connected with an input shaft of the first throttle valve; the first steering engine is used for driving the first swing arm to rotate, and the first swing arm and the second swing arm are used for transmitting the rotation to enable the input shaft of the first throttle valve to rotate so as to control the opening degree of the first throttle valve;
one end of the third swing arm is vertically and fixedly connected with the tail end of the output shaft of the second steering engine, and the other end of the third swing arm is hinged with one end of the second pull rod; the other end of the second pull rod is hinged with one end of the fourth swing arm; the other end of the fourth swing arm is vertically and fixedly connected with an input shaft of the second throttle valve; the second steering engine is used for driving the third swing arm to rotate, and the third swing arm and the fourth swing arm are used for transmitting the rotation to enable the input shaft of the second throttle valve to rotate so as to control the opening degree of the second throttle valve;
the first throttle valve position sensor and the second throttle valve position sensor are respectively arranged on the first throttle valve and the second throttle valve, are respectively used for sensing the opening degrees of the first throttle valve and the second throttle valve and transmitting the opening degrees to the electronic control unit;
the crankshaft position sensor is arranged on the layered scavenging engine and used for sensing the top dead center position of a piston of the layered scavenging engine and the rotating speed of the engine and transmitting the top dead center position and the rotating speed to the electronic control unit;
the first temperature sensor and the second temperature sensor are respectively arranged at the cylinder head of the layered scavenging engine and in the exhaust pipe, and are respectively used for sensing the temperature at the cylinder head of the layered scavenging engine and in the exhaust pipe and transmitting the temperature to the electronic control unit;
the electronic control unit is electrically connected with the crankshaft position sensor, the first temperature sensor, the second temperature sensor, the first throttle position sensor, the second throttle position sensor, the first steering engine, the second steering engine and the oil sprayer respectively and used for controlling the first steering engine, the second steering engine and the oil sprayer to work according to the crankshaft position sensor, the first temperature sensor, the second temperature sensor, the first throttle position sensor and the second throttle position sensor.
As the utility model discloses a further optimization scheme of automatically controlled layering air intake system for layering scavenging engine, first temperature sensor adopts J type thermocouple temperature sensor or PT100 temperature sensor.
As the utility model discloses a further optimization scheme of automatically controlled layering air intake system for layering scavenging engine, second temperature sensor adopt K type thermocouple temperature sensor.
The utility model also discloses a this a control method for automatically controlled layering air intake system of layering scavenging engine contains following step:
step 1), a crankshaft position sensor, a first temperature sensor, a second temperature sensor, a first throttle valve position sensor and a second throttle valve position sensor respectively sense the rotating speed of the stratified scavenging engine, the temperature of a cylinder head, the exhaust temperature in an exhaust pipe, the opening degree of a first throttle valve and the opening degree of a second throttle valve and transmit the rotating speed, the temperature of the cylinder head, the exhaust temperature in the exhaust pipe, the opening degree of the first throttle valve and the opening degree of the second throttle valve to an electronic control unit;
step 2), in a preset period threshold, if the opening degree of the first throttle valve is more than or equal to 5 degrees and less than or equal to 15 degrees, the average value of the engine speed is less than or equal to a preset first speed threshold, the absolute value of the difference between the maximum value of the engine speed and the average value of the engine speed is more than a preset stable speed threshold or the absolute value of the difference between the minimum value of the engine speed and the average value of the engine speed is more than a preset stable speed threshold, the average value of the temperature at the cylinder head is smaller than or equal to a preset first temperature threshold value, the temperature at the cylinder head is increased along with time, the temperature in the exhaust pipe is smaller than or equal to a preset second temperature threshold value, the temperature in the exhaust pipe is increased along with time, the electronic control unit judges that the engine is in a starting working condition at the moment, the electronic control unit controls the first throttle valve and the oil injector to normally work at the moment, and controls the second throttle valve to close the second air inlet channel;
step 3), in a preset period, if the opening degree of the first throttle valve is more than 15 degrees, the absolute value of the difference between the maximum value of the engine speed and the average value of the engine speed is less than or equal to a preset stable speed threshold value, the absolute value of the difference between the minimum value of the engine speed and the average value of the engine speed is less than or equal to a preset stable speed threshold value, the average value of the temperature at the cylinder head is more than a preset first temperature threshold value, the absolute value of the difference between the maximum value of the temperature at the cylinder head and the average value of the temperature at the cylinder head is less than or equal to a preset stable temperature threshold value, the temperature in the exhaust pipe is more than a preset second temperature threshold value, the absolute value of the difference between the maximum value of the temperature in the exhaust pipe and the average value of the temperature in the exhaust pipe is less than or equal to a preset stable temperature threshold value, The absolute value of the difference value between the minimum value of the temperature in the exhaust pipe and the average value of the temperature in the exhaust pipe is less than or equal to a preset stable temperature threshold value, and the electronic control unit judges that the temperature is in a normal working condition at the moment, at the moment:
step 3.1), the electronic control unit controls the first throttle valve and the oil injector to work normally;
step 3.2), the electronic control unit inquires a corresponding target opening degree of the second throttle valve in a preset comparison table of the opening degrees of the first throttle valve and the second throttle valve according to the opening degree of the first throttle valve;
and 3.3) the electronic control unit controls the second steering engine to work according to the inquired target opening degree of the second throttle valve, so that the opening degree of the second throttle valve is equal to the target opening degree of the second throttle valve.
The control method for normal operation of the first throttle valve comprises the following steps: the electronic control unit calculates the optimal opening degree of the first throttle valve according to the target opening degree of the first throttle valve transmitted from the outside by combining the rotating speed of the engine, the temperature of the cylinder head and the temperature in the exhaust pipe, and then controls the first steering engine to work, so that the opening degree of the first throttle valve is equal to the calculated optimal opening degree of the first throttle valve.
The utility model adopts the above technical scheme to compare with prior art, have following technological effect:
the utility model discloses relative prior art provides a double steering wheel collaborative formula control system suitable for automatically controlled engine double inlet duct of layering scavenging. The problem of adjustability of relative opening degree between the two throttle valves is solved, and the layered scavenging effect of the engine is improved. The oil consumption and the emission of the engine are reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a middle intake and fuel injection module according to the present invention;
fig. 2 is a schematic structural diagram of the front side of the air intake and oil injection module of the present invention;
fig. 3 is a schematic structural view of the reverse side of the air intake and oil injection module of the present invention;
fig. 4 is a schematic structural diagram of the first throttle valve, the first throttle valve position sensor and the first swing arm in cooperation.
In the figure, 1-a shell, 2-a first air inlet channel, 3-a second air inlet channel, 4-an oil injection channel, 5-a first throttle position sensor, 6-a second throttle position sensor, 7-an oil injector, 8-a first air filter, 9-a second air filter, 10-a second steering engine, 11-a third swing arm, 12-a second pull rod, 13-a fourth swing arm, 14-a first steering engine, 15-a first swing arm, 16-a first pull rod, 17-a second swing arm, 18-an input shaft of a first throttle valve and 19-a choke plate of the first throttle valve.
Detailed Description
The technical scheme of the utility model is further explained in detail with the attached drawings as follows:
the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.
The utility model discloses an electric control layered air intake system for a layered scavenging engine, which comprises an air intake and oil injection module, a crankshaft position sensor, a first temperature sensor, a second temperature sensor and an electronic control unit;
the air intake and oil injection module comprises a shell, a first air filter, a second air filter, a first throttle valve, a second throttle valve, a first steering engine, a second steering engine, a first swing arm, a second swing arm, a fourth swing arm, a first pull rod, a second pull rod, a first throttle valve position sensor, a second throttle valve position sensor and an oil injector.
As shown in fig. 1, the casing is fixedly connected with an air inlet of the stratified scavenging engine, and a first air inlet channel, a second air inlet channel and an oil injection channel are arranged in the casing, wherein the first air filter is arranged at one end of the first air inlet channel, and the other end of the first air inlet channel is communicated with an inlet of a main air inlet channel of the stratified scavenging engine; the second air filter is arranged at one end of the second air inlet channel, and the other end of the second air inlet channel is communicated with an inlet of an auxiliary air inlet channel of the stratified scavenging engine; the first throttle valve and the second throttle valve are respectively arranged in the first air inlet channel and the second air inlet channel and are respectively used for controlling the opening and closing degrees of the first air inlet channel and the second air inlet channel; the fuel injector is arranged at one end of the fuel injection channel, and the other end of the fuel injection channel is communicated with the first throttle valve and the first air inlet channel between the inlets of the main air inlet channels of the layered scavenging engine.
As shown in fig. 2 and 3, the first steering engine and the second steering engine are both arranged on the housing;
one end of the first swing arm is vertically and fixedly connected with the tail end of the output shaft of the first steering engine, and the other end of the first swing arm is hinged with one end of the first pull rod; the other end of the first pull rod is hinged with one end of the second swing arm; the other end of the second swing arm is vertically and fixedly connected with an input shaft of the first throttle valve; the first steering engine is used for driving the first swing arm to rotate, and the first swing arm and the second swing arm are used for transmitting the rotation to enable the input shaft of the first throttle valve to rotate so as to control the opening degree of the first throttle valve;
one end of the third swing arm is vertically and fixedly connected with the tail end of the output shaft of the second steering engine, and the other end of the third swing arm is hinged with one end of the second pull rod; the other end of the second pull rod is hinged with one end of the fourth swing arm; the other end of the fourth swing arm is vertically and fixedly connected with an input shaft of the second throttle valve; the second steering engine is used for driving the third swing arm to rotate, and the third swing arm and the fourth swing arm are used for transmitting the rotation to enable the input shaft of the second throttle valve to rotate so as to control the opening degree of the second throttle valve;
and the first throttle valve position sensor and the second throttle valve position sensor are respectively arranged on the first throttle valve and the second throttle valve, are respectively used for sensing the opening degrees of the first throttle valve and the second throttle valve and transmitting the opening degrees to the electronic control unit.
The crankshaft position sensor is arranged on the layered scavenging engine and used for sensing the top dead center position of a piston of the layered scavenging engine and the rotating speed of the engine and transmitting the top dead center position and the rotating speed to the electronic control unit;
the first temperature sensor and the second temperature sensor are respectively arranged at the cylinder head of the layered scavenging engine and in the exhaust pipe, and are respectively used for sensing the temperature at the cylinder head of the layered scavenging engine and in the exhaust pipe and transmitting the temperature to the electronic control unit;
the electronic control unit is electrically connected with the crankshaft position sensor, the first temperature sensor, the second temperature sensor, the first throttle position sensor, the second throttle position sensor, the first steering engine, the second steering engine and the oil sprayer respectively and used for controlling the first steering engine, the second steering engine and the oil sprayer to work according to the crankshaft position sensor, the first temperature sensor, the second temperature sensor, the first throttle position sensor and the second throttle position sensor.
The first temperature sensor adopts a J-type thermocouple temperature sensor or a PT100 temperature sensor, and the second temperature sensor adopts a K-type thermocouple temperature sensor.
As shown in fig. 4, the first throttle valve includes an input shaft and a choke plate, the choke plate is fixed on the input shaft through a screw, one end of the input shaft is vertically and fixedly connected with one end of the first swing arm, and the other end of the input shaft is provided with a first throttle valve position sensor.
The utility model also discloses a this a control method for automatically controlled layering air intake system of layering scavenging engine contains following step:
step 1), a crankshaft position sensor, a first temperature sensor, a second temperature sensor, a first throttle valve position sensor and a second throttle valve position sensor respectively sense the rotating speed of the stratified scavenging engine, the temperature of a cylinder head, the temperature in an exhaust pipe, the opening degree of a first throttle valve and the opening degree of a second throttle valve and transmit the rotating speed, the temperature of the cylinder head, the temperature in the exhaust pipe, the opening degree of the first throttle valve and the opening degree of the second throttle valve to an electronic control unit;
step 2), in a preset period threshold, if the opening degree of the first throttle valve is more than or equal to 5 degrees and less than or equal to 15 degrees, the average value of the engine speed is less than or equal to a preset first speed threshold, the absolute value of the difference between the maximum value of the engine speed and the average value of the engine speed is more than a preset stable speed threshold or the absolute value of the difference between the minimum value of the engine speed and the average value of the engine speed is more than a preset stable speed threshold, the average value of the temperature at the cylinder head is smaller than or equal to a preset first temperature threshold value, the temperature at the cylinder head is increased along with time, the temperature in the exhaust pipe is smaller than or equal to a preset second temperature threshold value, the temperature in the exhaust pipe is increased along with time, the electronic control unit judges that the engine is in a starting working condition at the moment, the electronic control unit controls the first throttle valve and the oil injector to normally work at the moment, and controls the second throttle valve to close the second air inlet channel;
step 3), in a preset period, if the opening degree of the first throttle valve is more than 15 degrees, the absolute value of the difference between the maximum value of the engine speed and the average value of the engine speed is less than or equal to a preset stable speed threshold value, the absolute value of the difference between the minimum value of the engine speed and the average value of the engine speed is less than or equal to a preset stable speed threshold value, the average value of the temperature at the cylinder head is more than a preset first temperature threshold value, the absolute value of the difference between the maximum value of the temperature at the cylinder head and the average value of the temperature at the cylinder head is less than or equal to a preset stable temperature threshold value, the temperature in the exhaust pipe is more than a preset second temperature threshold value, the absolute value of the difference between the maximum value of the temperature in the exhaust pipe and the average value of the temperature in the exhaust pipe is less than or equal to a preset stable temperature threshold value, The absolute value of the difference value between the minimum value of the temperature in the exhaust pipe and the average value of the temperature in the exhaust pipe is less than or equal to a preset stable temperature threshold value, and the electronic control unit judges that the temperature is in a normal working condition at the moment, at the moment:
step 3.1), the electronic control unit controls the first throttle valve and the oil injector to work normally;
step 3.2), the electronic control unit inquires a corresponding target opening degree of the second throttle valve in a preset comparison table of the opening degrees of the first throttle valve and the second throttle valve according to the opening degree of the first throttle valve;
and 3.3) the electronic control unit controls the second steering engine to work according to the inquired target opening degree of the second throttle valve, so that the opening degree of the second throttle valve is equal to the target opening degree of the second throttle valve.
The control method for normal operation of the first throttle valve comprises the following steps: the electronic control unit calculates the optimal opening degree of the first throttle valve according to the target opening degree of the first throttle valve transmitted from the outside by combining the rotating speed of the engine, the temperature of the cylinder head and the temperature in the exhaust pipe, and then controls the first steering engine to work, so that the opening degree of the first throttle valve is equal to the calculated optimal opening degree of the first throttle valve.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. The electronic control layered air intake system for the layered scavenging engine is characterized by comprising an air intake and oil injection module, a crankshaft position sensor, a first temperature sensor, a second temperature sensor and an electronic control unit;
the air intake and oil injection module comprises a shell, a first air filter, a second air filter, a first throttle valve, a second throttle valve, a first steering engine, a second steering engine, a first swing arm, a second swing arm, a fourth swing arm, a first pull rod, a second pull rod, a first throttle valve position sensor, a second throttle valve position sensor and an oil injector;
the shell is fixedly connected with an air inlet of the layered scavenging engine, and a first air inlet channel, a second air inlet channel and an oil injection channel are arranged in the shell; the second air filter is arranged at one end of the second air inlet channel, and the other end of the second air inlet channel is communicated with an inlet of an auxiliary air inlet channel of the stratified scavenging engine; the first throttle valve and the second throttle valve are respectively arranged in the first air inlet channel and the second air inlet channel and are respectively used for controlling the opening and closing degrees of the first air inlet channel and the second air inlet channel; the fuel injector is arranged at one end of the fuel injection channel, and the other end of the fuel injection channel is communicated with the first throttle valve and a first air inlet channel between inlets of a main air inlet channel of the stratified scavenging engine;
the first steering engine and the second steering engine are both arranged on the shell;
one end of the first swing arm is vertically and fixedly connected with the tail end of the output shaft of the first steering engine, and the other end of the first swing arm is hinged with one end of the first pull rod; the other end of the first pull rod is hinged with one end of the second swing arm; the other end of the second swing arm is vertically and fixedly connected with an input shaft of the first throttle valve; the first steering engine is used for driving the first swing arm to rotate, and the first swing arm and the second swing arm are used for transmitting the rotation to enable the input shaft of the first throttle valve to rotate so as to control the opening degree of the first throttle valve;
one end of the third swing arm is vertically and fixedly connected with the tail end of the output shaft of the second steering engine, and the other end of the third swing arm is hinged with one end of the second pull rod; the other end of the second pull rod is hinged with one end of the fourth swing arm; the other end of the fourth swing arm is vertically and fixedly connected with an input shaft of the second throttle valve; the second steering engine is used for driving the third swing arm to rotate, and the third swing arm and the fourth swing arm are used for transmitting the rotation to enable the input shaft of the second throttle valve to rotate so as to control the opening degree of the second throttle valve;
the first throttle valve position sensor and the second throttle valve position sensor are respectively arranged on the first throttle valve and the second throttle valve, are respectively used for sensing the opening degrees of the first throttle valve and the second throttle valve and transmitting the opening degrees to the electronic control unit;
the crankshaft position sensor is arranged on the layered scavenging engine and used for sensing the top dead center position of a piston of the layered scavenging engine and the rotating speed of the engine and transmitting the top dead center position and the rotating speed to the electronic control unit;
the first temperature sensor and the second temperature sensor are respectively arranged at the cylinder head of the layered scavenging engine and in the exhaust pipe, and are respectively used for sensing the temperature at the cylinder head of the layered scavenging engine and in the exhaust pipe and transmitting the temperature to the electronic control unit;
the electronic control unit is electrically connected with the crankshaft position sensor, the first temperature sensor, the second temperature sensor, the first throttle position sensor, the second throttle position sensor, the first steering engine, the second steering engine and the oil sprayer respectively and used for controlling the first steering engine, the second steering engine and the oil sprayer to work according to the crankshaft position sensor, the first temperature sensor, the second temperature sensor, the first throttle position sensor and the second throttle position sensor.
2. The electronically controlled stratified air intake system for a stratified scavenging engine as claimed in claim 1, wherein the first temperature sensor is a type J thermocouple temperature sensor or a PT100 temperature sensor.
3. The electronically controlled stratified charge air system for a stratified scavenging engine as recited in claim 1, wherein the second temperature sensor is a type K thermocouple temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920091879.3U CN209875295U (en) | 2019-01-21 | 2019-01-21 | Electric control layered air inlet system for layered scavenging engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920091879.3U CN209875295U (en) | 2019-01-21 | 2019-01-21 | Electric control layered air inlet system for layered scavenging engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875295U true CN209875295U (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920091879.3U Expired - Fee Related CN209875295U (en) | 2019-01-21 | 2019-01-21 | Electric control layered air inlet system for layered scavenging engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN209875295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798178A (en) * | 2019-01-21 | 2019-05-24 | 南京航空航天大学 | Automatically controlled stratified charge system and its control method for layered-scavenging engine |
-
2019
- 2019-01-21 CN CN201920091879.3U patent/CN209875295U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798178A (en) * | 2019-01-21 | 2019-05-24 | 南京航空航天大学 | Automatically controlled stratified charge system and its control method for layered-scavenging engine |
| CN109798178B (en) * | 2019-01-21 | 2024-03-29 | 南京航空航天大学 | Electric control stratified air inlet system for stratified scavenging engine and control method thereof |
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Granted publication date: 20191231 Termination date: 20210121 |