CN114034810B - Fuel octane number measuring device suitable for low-pressure environment - Google Patents
Fuel octane number measuring device suitable for low-pressure environment Download PDFInfo
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- CN114034810B CN114034810B CN202111486958.2A CN202111486958A CN114034810B CN 114034810 B CN114034810 B CN 114034810B CN 202111486958 A CN202111486958 A CN 202111486958A CN 114034810 B CN114034810 B CN 114034810B
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- air inlet
- fuel
- octane number
- pressure
- heater
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- 239000000446 fuel Substances 0.000 title claims abstract description 155
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 239000001301 oxygen Substances 0.000 claims abstract description 30
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002828 fuel tank Substances 0.000 claims abstract description 28
- 238000002485 combustion reaction Methods 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000012805 post-processing Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 14
- 238000011084 recovery Methods 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 27
- 238000002347 injection Methods 0.000 description 16
- 239000007924 injection Substances 0.000 description 16
- 239000003921 oil Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 11
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2829—Mixtures of fuels
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Molecular Biology (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Testing Of Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention relates to the technical field of octane number measuring machines, in particular to a fuel octane number measuring device suitable for a low-pressure environment, which comprises a fuel tank, a fuel pump, a pressure regulator, a fuel injector, a pressure gauge, a fuel injector, a supercharging device, a pressure sensor, an oxygen sensor, a heater, a vertical air inlet pipe, an octane number measuring machine body, an exhaust check valve, a post-treatment device, a muffler, an air inlet control valve and a controller. The air inlet control valve, the oxygen sensor, the pressure sensor and the first heater are sequentially arranged on the front air inlet pipe along the air inlet flow direction, and the exhaust check valve, the post-treatment device and the muffler are sequentially arranged on the exhaust pipe along the exhaust flow direction. The invention can realize the recovery of the air inlet pressure and the oxygen flow of the octane number tester in a low-pressure environment, and meets the air inlet and outlet conditions required by the test of the octane number tester. By the implementation of the invention, the octane number of the fuel can be accurately measured at low pressure, especially in a plateau environment.
Description
Technical Field
The invention relates to the technical field of octane number measuring machines, in particular to a fuel octane number measuring device which can adjust air inlet and outlet pressure and adopts electric control oil injection and is suitable for a low-pressure environment.
Background
The octane number of a fuel is an important indicator for evaluating the antiknock performance of a fuel. Currently, the octane number of fuels is measured by an octane number tester under normal pressure and under a condition of sufficient oxygen. However, in the environment of low pressure and insufficient oxygen, the octane number measuring machine with a carburetor structure generates insufficient oil quantity due to low pressure, and the amount of oxygen entering a cylinder of the octane number measuring machine is small, so that the combustion is insufficient, and the octane number measuring machine cannot work normally and stably, and cannot accurately measure the octane number of fuel. In addition, the air pressure entering the octane number tester also fails to meet the testing conditions of the fuel octane number. The octane measurement is also affected by the reduced exhaust backpressure under low pressure conditions.
Therefore, how to innovatively design an air inlet system, an air outlet system and a fuel supply system of the octane number measuring machine so that the octane number measuring machine can accurately measure the octane number of fuel under the environment of low pressure and insufficient oxygen is a technical problem to be solved in the field.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the fuel octane number measuring device suitable for the low-pressure environment, which can lead the air inlet pressure and the oxygen to reach the octane number test condition under the environment of low pressure and insufficient oxygen, has the same exhaust back pressure effect as that of the normal-pressure environment, ensures that the electric control fuel injection quantity is not influenced by the atmospheric environment, realizes stable fuel injection quantity and high fuel injection pressure, and ensures high fuel atomization quality.
The invention is realized through the following technical scheme that the device comprises a fuel tank, a fuel pump, a pressure regulator, a pressure gauge, a fuel injector, an air inlet supercharging device, a pressure sensor, an oxygen sensor, a first heater, a vertical air inlet pipe, a combustion chamber of an octane number tester, an octane number tester body, an exhaust pipe, an exhaust check valve, a post-treatment device, a muffler, a front air inlet pipe, an air inlet control valve, an oil return pipe, a second heater, a rear air inlet pipe and a controller, wherein the fuel tank, the fuel pump, the pressure regulator, the pressure gauge and the fuel injector are sequentially connected in series through a fuel oil pipeline; the number of the fuel tanks, the fuel pumps, the pressure regulators, the pressure gauges and the fuel injectors is more than two; the first heater and the second heater are both electric control heating devices; the exhaust check valve and the air inlet control valve are all electric control valves.
In the invention, an air inlet system is provided with an air inlet supercharging device, an air inlet pipe, an air inlet control valve, a pressure sensor, an oxygen sensor and a heater. The air inlet supercharging device can improve the pressure and the oxygen flow in the environment with insufficient low pressure and oxygen quantity, so that the air state of the air inlet pipe reaches the testing condition of the fuel octane number. The air inlet supercharging device is communicated with the air inlet pipe, and an air inlet control valve is arranged in the air inlet pipe and can control the air quantity and the flow rate entering the octane number measuring machine. The pressure sensor and the oxygen sensor are arranged to monitor the pressure and the oxygen amount of the air entering the octane number tester body at any time. The heater is installed to heat air or oil gas to reach the test condition of fuel octane number measurement. The air inlet system is communicated with an octane number tester.
In the invention, the fuel supply system comprises a fuel tank, a fuel pump, a pressure regulator, a pressure gauge, a fuel pipe, a switch for controlling the fuel pump and a fuel injector. In four fuel tanks with the same volume, each fuel tank is connected to a fuel pump through a fuel pipe, and each electric switch is used for controlling the opening and closing of each fuel pump. The fuel pump is connected to the pressure regulator, the pressure gauge and the fuel injector in sequence through a fuel pipe. In addition, a return line is provided to allow excess fuel to flow back to the original tank through the return port of the pressure regulator.
In the present invention, the fuel supply system is controlled by the controller, and a stable amount of injected fuel can be generated to determine the equivalence ratio of the mixture that produces the maximum knock intensity, so that the fuel octane number can be accurately measured. The fuel supply system comprises a fuel injector which is arranged on a vertical pipe in the air inlet system so as to inject fuel into an air inlet pipe, and the fuel is completely atomized in the pipe and fully mixed with air and then enters a combustion chamber of the octane number measuring machine with variable compression ratio.
In the invention, the opening and closing time of an intake valve of the octane number measuring machine is calculated according to the signals of a flywheel position sensor and an igniter sensor of the octane number measuring machine, and the oil injection time of the octane number measuring machine is determined. The fuel injection pulse width is set by software or the proper fuel injection pulse width is automatically searched to determine the equivalent ratio of the mixed gas generating the maximum knocking intensity, so that the octane number of the fuel can be accurately measured.
In the invention, the exhaust system comprises an exhaust pipe, an exhaust check valve, an exhaust aftertreatment device and a muffler, wherein the exhaust pipe is communicated with the octane number tester, exhaust gas of the octane number tester flows to the exhaust check valve through the exhaust pipe, and the opening degree of the exhaust check valve is set to increase exhaust back pressure so as to achieve the same exhaust back pressure effect as that under normal pressure environment and avoid influencing a test result due to low pressure environment. The exhaust gas passes through the check valve, flows to the exhaust gas aftertreatment device, and then passes through the muffler to be discharged to the atmosphere.
In the invention, the fuel pump in the fuel supply system can make the oil way generate certain fuel pressure, the pressure regulator can make the fuel injector generate certain fuel injection pressure, the fuel injection quantity can not be influenced by low pressure and low oxygen environment, and the fuel atomization quality is high. In addition, the fuel injection pulse width is set by software or the proper fuel injection pulse width is automatically searched to determine the gas-fuel mixture equivalent ratio generating the maximum knock intensity, so that the method of manually searching the maximum knock intensity of fuel when the carburetor system is used for supplying oil is avoided, and the octane number of the fuel can be accurately measured.
The air inlet system of the octane number tester in the low-pressure environment solves the technical problems of low air inlet pressure and insufficient air inflow of the octane number tester in the environment with low pressure and insufficient oxygen amount, especially in the high-altitude area, so that the air inlet condition reaches the testing condition of the fuel octane number.
According to the exhaust system device of the octane number tester in the low-pressure environment, which is provided by the invention, the check valve is arranged in the exhaust system, so that the technical problem that the exhaust back pressure is influenced by the low-pressure environment is solved, and the test result that the fuel octane number is not influenced by the exhaust back pressure condition is ensured.
Compared with the prior art, the invention has the following effects: after the air inlet system, the fuel supply system and the exhaust system of the octane number are redesigned, the octane number measuring machine can accurately measure the octane number of the fuel in the environment with low pressure and insufficient oxygen, and the technical problem that the octane number of the fuel cannot be accurately measured in the environment with low pressure and insufficient oxygen at present is solved. The octane number tester device has the advantages of simple structure, convenient installation, low cost and popular and easily understood testing method; the device has outstanding application value in the field of measuring the octane number of fuel in the environment with low pressure and insufficient oxygen.
Drawings
FIG. 1 is a schematic diagram of a controller according to the present invention;
wherein, 1, a fuel tank, 2, a fuel pump, 3, a pressure regulator, 4, a pressure gauge, 5, a fuel injector, 6, an air inlet supercharging device, 7, a pressure sensor, 8, an oxygen sensor, 9, a first heater, 10, a vertical air inlet pipe, 11 and a combustion chamber of an octane number tester, 12 parts of an octane number measuring machine body, 13 parts of an exhaust pipe, 14 parts of an exhaust check valve, 15 parts of a post-processing device, 16 parts of a muffler, 17 parts of a front air inlet pipe, 18 parts of an air inlet control valve, 19 parts of an oil return pipe, 20 parts of a second heater, 21 parts of a rear air inlet pipe.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings, and the embodiments and specific operation procedures of the present invention are given by this embodiment on the premise of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following embodiments.
Examples
The invention is shown in the above figure 1, and comprises a fuel tank 1, a fuel pump 2, a pressure regulator 3, a pressure gauge 4, a fuel injector 5, an air inlet supercharging device 6, a pressure sensor 7, an oxygen sensor 8, a first heater 9, a vertical air inlet pipe 10, a combustion chamber 11 of an octane number measuring machine, an octane number measuring machine body 12, an exhaust pipe 13, an exhaust check valve 14, a post-treatment device 15, a muffler 16, a front air inlet pipe 17, an air inlet control valve 18, an oil return pipe 19, a second heater 20 and a rear air inlet pipe 21. The fuel tank 1, the fuel pump 2, the pressure regulator 3, the pressure gauge 4 and the fuel injector 5 are sequentially connected in series through a fuel pipeline, a combustion chamber 11 of the octane number tester is arranged in a octane number tester body 12, a front air inlet pipe 17, a vertical air inlet pipe 10 and a rear air inlet pipe 21 are sequentially connected, an air outlet of the rear air inlet pipe 21 is connected with an air inlet of the combustion chamber 11 of the octane number tester, an air outlet of the air inlet supercharging device 6 is connected with an air inlet of the front air inlet pipe 17, an air inlet control valve 18, an oxygen sensor 8, the pressure sensor 7 and the first heater 9 are sequentially arranged on the front air inlet pipe 17 along an air inlet flow direction, a second heater 20 is arranged on the rear air inlet pipe 21, the fuel injector 5 is arranged on the vertical air inlet pipe 10, an air inlet of the exhaust pipe 13 is connected with an air outlet of the combustion chamber 11 of the octane number tester, an exhaust check valve 14, a post-treatment device 15 and a muffler 16 are sequentially arranged on the exhaust pipe 13 along an air outlet flow direction, two end ports of an oil return pipe 19 are respectively communicated with the fuel tank 1 and the pressure regulator 3, and a controller is used for controlling the air outlet check valve 14, the air inlet control valve 18, the fuel injector 5, the first heater 9 and the second heater 20. The number of the fuel tank 1, the fuel pump 2, the pressure regulator 3, the pressure gauge 4 and the fuel injector 5 is four. The first heater 9 and the second heater 20 are all electric control heating devices. The exhaust check valve 14 and the intake control valve 18 are electrically controlled valves.
The controller of the invention can control the air inlet and outlet system and the fuel supply system so that the octane number measuring device can work normally and measure the octane number of fuel.
In the present invention, the intake system includes an intake supercharging device 6, a front intake pipe 17, a vertical intake pipe 10, a rear intake pipe 21, an intake control valve 18, a pressure sensor 7, an oxygen sensor 8, a first heater 9, and a second heater 20. The intake supercharging device 6 is communicated with the front air inlet pipe 17, and can increase the pressure and oxygen flow in the low-pressure and low-oxygen environment, so that the intake condition reaches the testing condition of the fuel octane number. An intake control valve 18 is installed in the front intake pipe 17 to control the amount and flow rate of air entering the octane number meter housing 12. The pressure sensor 7 and the oxygen sensor 8 are installed in the front intake pipe 17, and the air pressure and the oxygen amount entering the octane number tester body 12 can be monitored at any time. A first heater 9 and a second heater 20 are mounted on the intake pipe to heat air and a mixture of fuel and air, respectively. These instruments are installed to bring the air in the intake pipe, and the mixture of fuel and air, to the test conditions required for the fuel octane measurement.
In the present invention, the fuel supply system includes a fuel tank 1, a fuel pump 2, a pressure regulator 3, a pressure gauge 4, and a fuel injector 5. Four fuel tanks 1 of the same volume are installed, each fuel tank 1 being connected to a fuel pump 2 by a fuel line, each fuel pump 2 being controlled by a separate electrical switch, the fuel pumps 2 being connected in turn to a pressure regulator 3, a pressure gauge 4 and a fuel injector 5 by the fuel line. Furthermore, a return line 19 is provided for each line, so that excess fuel can flow through the return port of the pressure regulator 3 to the corresponding fuel tank 1.
In the present invention, the fuel supply system is controlled by a controller, and the fuel injection timing is determined by calculating the opening/closing timing of the intake valve of the octane number measuring machine body 12 based on the flywheel position sensor and igniter sensor signals of the octane number measuring machine body 12. The fuel injection pulse width is set through software or the proper fuel injection pulse width is automatically searched, and the equivalent ratio of the mixed gas generating the maximum knocking intensity is found, so that the octane number of the fuel can be accurately measured.
The fuel supply system includes a fuel injector 5, and the fuel injector 5 is mounted on a vertical intake pipe 10 of the intake system so as to communicate with the intake system. The fuel injector 5 injects fuel into the vertical intake pipe 10, and the fuel is completely atomized in the pipe and sufficiently mixed with air, and then enters the combustion chamber of the octane number measuring machine body 12 having a variable compression ratio.
In the present invention, the exhaust system includes the exhaust pipe 13, the exhaust check valve 14, the post-processing device 15 and the muffler 16, the exhaust pipe 13 is communicated with the octane number measuring machine body 12, the exhaust gas generated by the combustion chamber 11 of the octane number measuring machine flows to the exhaust check valve 14 after flowing to the exhaust pipe 13, the opening degree of the check valve is set to increase the exhaust back pressure, and the influence of the low pressure environment is avoided, so that the same exhaust back pressure effect as that under the normal pressure environment is achieved. Exhaust gas passes through the exhaust check valve 14, flows to the exhaust aftertreatment device 15, and then passes through the muffler 16 to be discharged to the atmosphere.
The implementation steps of the invention are as follows:
First, the octane number measuring machine body 12 is started, the compression ratio of the octane number measuring machine is adjusted to a compression ratio corresponding to the octane number of the toluene reference fuel, and then the ignition switch of the octane number measuring machine is started. The fuel used by the heat engine is placed in the fuel tank, a control switch of the fuel pump 2 connected with the fuel tank is started, so that the fuel is in a fuel path, and the fuel sprayed from the fuel injector 5 enters a combustion chamber 11 of the octane number tester for combustion after the fuel is completely atomized in the air inlet pipe. The controller is used for controlling the oil injection time and the oil injection pulse width and automatically searching the optimal oil-gas equivalent ratio, so that the maximum knocking intensity can be found. When the octane number measuring machine body 12 is started, the first heater 9 and the second heater 20 in the intake pipe are heated, and other devices such as the intake supercharging device 6 are turned on to allow the air in the intake pipe to reach the test conditions.
Second, when each control parameter of the octane number tester body 12 reaches the testing condition of the fuel octane number, the octane number tester body 12 is made to idle, and the hot engine oil in the fuel tank is replaced. A toluene reference fuel (octane number of which has been determined), a high standard fuel (for measuring the octane number of the toluene reference fuel), and a low standard fuel (for measuring the octane number of the toluene reference fuel) were placed in the fuel tanks, respectively. Starting an ignition switch of the octane number measuring machine, respectively starting a high standard fuel, a low standard fuel and a toluene reference fuel in a fuel tank, measuring the knock intensity of the high standard fuel, the low standard fuel and the toluene reference fuel, calculating the octane number of the toluene reference fuel by an interpolation method, and if the octane number of the toluene reference fuel obtained by the experiment is just within +/-0.3 with the error of the determined octane number, not adjusting the air inlet temperature, otherwise, adjusting the air inlet temperature, measuring the octane number of the toluene reference fuel again according to the method, so that the tested octane number and the error of the determined octane number are within +/-0.3.
Third, after each control parameter of the octane number measuring machine body 12 reaches the test condition of the fuel octane number, the fuel contained in the fuel tank in the previous step is replaced, and then the high standard fuel (for measuring the octane number of the fuel to be measured), the low standard fuel (for measuring the octane number of the fuel to be measured) and the fuel to be measured are respectively contained in the fuel tank. The compression ratio of the octane number measuring machine is adjusted to be suitable for the octane number of the fuel to be measured. The ignition switch of the octane number measuring machine is started, the control switch of the fuel pump 2 of the fuel tank filled with the high standard sample fuel is turned on, and the knocking intensity generated when the high standard sample fuel burns in the combustion chamber 11 of the octane number measuring machine is measured for a plurality of times. And closing the oil way of the high standard sample, and then respectively measuring the knocking intensity of the low standard sample fuel and the knocking intensity of the fuel to be measured according to the step. Finally, the octane number of the fuel to be tested is calculated by interpolation (the process needs to be measured for several times and then the average value is obtained).
In the above steps, the exhaust gas generated by the combustion of the fuel in the combustion chamber 11 of the octane number measuring machine flows to the exhaust check valve 14 through the exhaust pipe 13, and the opening degree of the exhaust check valve 14 is set by the controller so that the exhaust back pressure effect is the same as the exhaust back pressure effect in the normal pressure environment. Thereafter, the exhaust gas passes through the exhaust check valve 14, the aftertreatment device 15, and the muffler 16 in this order, and is discharged to the atmosphere.
The fuel octane number measuring device suitable for the low-pressure environment provided by the invention redesigns the fuel supply system, the air inlet and exhaust system and the exhaust system of the original octane number measuring machine, and has very outstanding application value in the field of octane number measuring machines.
The foregoing describes a specific mode of operation of the present invention. It is to be understood that the invention is not limited to the particular manner of operation described hereinabove, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without affecting the spirit of the invention.
Claims (1)
1. The fuel octane number measuring device suitable for the low-pressure environment comprises a fuel tank (1), a fuel pump (2), a pressure regulator (3), a pressure gauge (4) and a fuel injector (5), wherein the fuel tank (1), the fuel pump (2), the pressure regulator (3), the pressure gauge (4) and the fuel injector (5) are sequentially connected in series through a fuel pipeline, and the device is characterized by further comprising an air inlet pressurizing device (6), a pressure sensor (7), an oxygen sensor (8), a first heater (9), a vertical air inlet pipe (10), a combustion chamber (11) of an octane number measuring machine, an octane number measuring machine body (12), an exhaust pipe (13), an exhaust check valve (14), a post-processing device (15), a muffler (16), a front air inlet pipe (17), an air inlet control valve (18), an oil return pipe (19), a second heater (20) and a rear air inlet pipe (21), wherein the combustion chamber (11) of the octane number measuring machine is arranged in the octane number measuring machine body (12), the front air inlet pipe (17), the vertical air inlet pipe (10) and the rear air inlet pipe (21) are sequentially connected together, the air outlet of the rear air inlet pipe (21) is connected with the air inlet of the combustion chamber (11) of the octane number measuring machine, an air outlet of the air inlet supercharging device (6) is connected with an air inlet of a front air inlet pipe (17), an air inlet control valve (18), an oxygen sensor (8), a pressure sensor (7) and a first heater (9) are sequentially arranged on the front air inlet pipe (17) along the air inlet flow direction, a second heater (20) is arranged on a rear air inlet pipe (21), and an oil injector (5) is arranged on a vertical air inlet pipe (10); an air inlet of the exhaust pipe (13) is connected with an air outlet of a combustion chamber (11) of the octane number tester, and an exhaust check valve (14), a post-treatment device (15) and a muffler (16) are sequentially arranged on the exhaust pipe (13) along the exhaust flow direction; two ports of the oil return pipe (19) are respectively communicated with the fuel tank (1) and the pressure regulator (3); the controller is used for controlling the exhaust check valve (14), the air inlet control valve (18), the fuel injector (5), the first heater (9) and the second heater (20);
the number of the fuel tanks (1), the fuel pumps (2), the pressure regulators (3), the pressure gauges (4) and the fuel injectors (5) is more than two;
the first heater (9) and the second heater (20) are electric control heating devices;
the exhaust check valve (14) and the air inlet control valve (18) are all electric control valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111486958.2A CN114034810B (en) | 2021-12-07 | 2021-12-07 | Fuel octane number measuring device suitable for low-pressure environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111486958.2A CN114034810B (en) | 2021-12-07 | 2021-12-07 | Fuel octane number measuring device suitable for low-pressure environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114034810A CN114034810A (en) | 2022-02-11 |
| CN114034810B true CN114034810B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111486958.2A Active CN114034810B (en) | 2021-12-07 | 2021-12-07 | Fuel octane number measuring device suitable for low-pressure environment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114019086B (en) * | 2021-12-07 | 2024-05-03 | 上海交通大学 | Octane number measuring device suitable for gas fuel or gas-liquid flexible fuel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257216A (en) * | 2013-05-14 | 2013-08-21 | 西安交通大学 | Measurement device of fuel cetane numbers |
| CN113671102A (en) * | 2021-08-12 | 2021-11-19 | 笃为（上海）精密仪器有限公司 | Device and method for determining gasoline octane number and diesel cetane number |
| CN114019086A (en) * | 2021-12-07 | 2022-02-08 | 上海交通大学 | Octane number measuring device suitable for gas fuel or gas-liquid flexible fuel |
| CN216386919U (en) * | 2021-12-07 | 2022-04-26 | 上海交通大学 | Octane number measuring device suitable for gas fuel or gas-liquid flexible fuel |
| CN216386918U (en) * | 2021-12-07 | 2022-04-26 | 上海交通大学 | Fuel octane number measuring device with electronic control fuel supply system |
| CN216411177U (en) * | 2021-12-07 | 2022-04-29 | 上海交通大学 | Fuel octane number measuring device suitable for low-pressure environment |
-
2021
- 2021-12-07 CN CN202111486958.2A patent/CN114034810B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257216A (en) * | 2013-05-14 | 2013-08-21 | 西安交通大学 | Measurement device of fuel cetane numbers |
| CN113671102A (en) * | 2021-08-12 | 2021-11-19 | 笃为（上海）精密仪器有限公司 | Device and method for determining gasoline octane number and diesel cetane number |
| CN114019086A (en) * | 2021-12-07 | 2022-02-08 | 上海交通大学 | Octane number measuring device suitable for gas fuel or gas-liquid flexible fuel |
| CN216386919U (en) * | 2021-12-07 | 2022-04-26 | 上海交通大学 | Octane number measuring device suitable for gas fuel or gas-liquid flexible fuel |
| CN216386918U (en) * | 2021-12-07 | 2022-04-26 | 上海交通大学 | Fuel octane number measuring device with electronic control fuel supply system |
| CN216411177U (en) * | 2021-12-07 | 2022-04-29 | 上海交通大学 | Fuel octane number measuring device suitable for low-pressure environment |
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| Publication number | Publication date |
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| CN114034810A (en) | 2022-02-11 |
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