CN110793779A - Engine oil loading injection experimental device - Google Patents
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- CN110793779A CN110793779A CN201911167767.2A CN201911167767A CN110793779A CN 110793779 A CN110793779 A CN 110793779A CN 201911167767 A CN201911167767 A CN 201911167767A CN 110793779 A CN110793779 A CN 110793779A
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
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Abstract
The invention discloses an engine oil loading and spraying experimental device, which comprises an engine for simulating the engine and an engine oil tank for storing engine oil, wherein the engine oil tank is used for storing the engine oil; the first input end of the engine oil tank is connected with the output end of the three-way regulating valve through the two-way regulating valve in sequence; the first input end of the three-way regulating valve is connected with the output end of the gear pump through the oil filter; the input end of the gear pump is connected with an external oil storage device through an oil filling ball valve; the output end of the three-way regulating valve also passes through an injection electromagnetic valve; the output end of the injection electromagnetic valve is connected with the input end of the engine oil inner cavity; the first output end of the engine oil tank is connected with the input end of the gear pump through an oil return ball valve. The device can realize the switching of functions by opening and closing different valves, not only can be used as an oil supply device for high-temperature engine oil and high-pressure engine oil meeting the test requirements for various reliability tests of the engine, but also can be used for engine oil injection targeting tests and dynamic engine fuel oil supply system pressure loading tests.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an engine oil loading and spraying experimental device.
Background
The engine oil in the engine lubricating system is used as the lubricant of the engine, not only has the functions of lubricating parts, slowing down the abrasion of parts and prolonging the service life of the engine body, but also has the functions of cooling, cleaning, sealing, corrosion prevention, oxidation resistance and the like, can improve the running state of the engine body and improve the fuel economy of the engine.
Some high-horsepower diesel engines often employ an oil jet cooling system to cool and lubricate the engine pistons and cylinders: the engine oil pump pumps the engine oil in the bottom oil pan of the engine into an oil pipeline, the engine oil flows through an oil filter attached to a cooling device, the filtered and cooled engine oil is sent into a main oil duct, and enters an auxiliary oil duct after the lubrication of a camshaft and a crankshaft is completed, and the engine oil is sprayed to the surface of a piston through a high-pressure nozzle on a cylinder body to help the piston to quickly dissipate heat and lubricate. And with the increasingly high heat load of the piston of a high-horsepower engine on the market, the requirements for cooling and lubricating the piston are continuously improved: the engine oil is not only sprayed to the surface of the piston, but also accurately enters the cooling oil passage of the piston body, so that the requirement on the angle of the nozzle is higher. Once the injection angle is offset, engine oil can not be accurately injected into the piston oil duct, the cooling effect of the piston can be influenced, the neck part can be ablated due to poor long-term cooling of the piston, and even cylinder pulling can occur.
The engine oil injection targeting test is required to be carried out to obtain a reasonable injection angle, a special test device is required, and the engine oil is injected into a cylinder piston after the pressure, the temperature and the flow of the engine oil are adjusted by simulating the working state of an engine oil injection cooling system of an actual engine. And observing and detecting the engine oil injection track, and continuously adjusting the position and the angle of an engine oil nozzle to obtain the optimal injection angle and the optimal nozzle position. Such devices need to meet the following performance requirements:
1. the oil supply pressure is adjustable within the range of 0.3-1.2 MPa;
2. the design oil supply flow needs to be more than 30L/min;
3. the temperature of the engine oil is convenient and adjustable within the range of 30-120 ℃, and the heating is fast.
4. The device needs oil filtration, so that the oil product is ensured to be clean, and the engine oil is recycled.
The invention discloses a 'test bed fuel supply pressure stabilizing system' (ZL200610085744.3) disclosed by Nanjing automobile group Limited company, which comprises an oil tank, an air source unit and a pneumatic pressure stabilizing unit, wherein the pneumatic pressure stabilizing unit comprises a pneumatic pump, a pressure relief unit and an adjusting unit, a fuel inlet of the pneumatic pump is connected with the oil tank through a control valve, the pressure relief unit and the pressure regulating unit are arranged on a fuel outlet oil path of the pneumatic pump, a fuel input of the pressure relief unit is connected with an output of the pneumatic pump, and an output of the pressure relief unit flows back to the oil tank; one path of fuel output of the pressure regulating unit conveys fuel at a working pressure level outwards, and the other path of fuel output of the pressure regulating unit returns to the fuel tank. The invention also discloses an engine fuel oil supply test device (ZL200820053243.1) of the research institute of Chinese aeronautical power machinery, which comprises a vacuum pump, a fuel tank, a circulating pump, a pipeline heater and a control system, wherein the fuel tank is provided with a pressure sensor, a temperature sensor and an oil level sensor, the vacuum pump is connected with the fuel tank through an air pipe, an oil inlet pipe of a three-way pipe is provided with a circulating electromagnetic valve, and the control system is internally connected with a pressure controller, a temperature controller and a liquid level controller.
The two patent technologies all adopt a mode of controlling an oil way by an air path: the former only adjusts the output oil pressure, and is provided with an oil pressure over-protection device, but cannot adjust the oil temperature, and has no self-protection device when the system is in oil shortage; the oil pressure, the oil temperature and the oil supplement in the fuel oil tank can be automatically controlled through the coordinated work of the vacuum pump and the gas filling valve, the automatic control of the oil pressure, the oil temperature and the liquid level is realized through circulating heating, but the high-pressure oil is directly arranged in the oil tank, the oil tank needs to be made of high-strength compression-resistant materials, the cost is high, and potential safety hazards exist. In addition, the two patent technologies both adopt a mode of controlling an oil way by an air path, have high requirements on the sealing property of equipment and are not easy to overhaul.
Disclosure of Invention
The invention aims to provide an engine oil loading injection experimental device
The invention is realized according to the following technical scheme:
an engine oil loading injection experimental device comprises an engine for simulating the engine and an oil tank for storing the engine oil; the engine is provided with an engine oil inner cavity;
the first input end of the engine oil tank is connected with the output end of the three-way regulating valve through the two-way regulating valve in sequence; the first input end of the three-way regulating valve is connected with the output end of the gear pump through the oil filter;
the input end of the gear pump is connected with an external oil storage device through an oil filling ball valve;
the output end of the three-way regulating valve also passes through an injection electromagnetic valve; the output end of the injection electromagnetic valve is connected with the input end of the engine oil inner cavity;
the first output end of the engine oil tank is connected with the input end of the gear pump through an oil return ball valve.
Furthermore, the device also comprises a PID voltage regulation artificial intelligence industrial regulator;
a pressure gauge and an output oil temperature sensor are arranged between the output end of the three-way regulating valve and the input end of the engine oil cavity; an output oil pressure sensor is arranged at the input end of the two-way regulating valve;
and the PID pressure regulating artificial intelligent industrial regulator is electrically connected with the two-way regulating valve and the output oil pressure sensor.
Further, the device also comprises a PID temperature control artificial intelligence industrial regulator, a heat exchanger, a heater for heating the engine oil in the engine oil tank and an in-tank oil temperature sensor for detecting the oil temperature in the engine oil tank; the heater, the three-way regulating valve and the in-tank oil temperature sensor are all electrically connected with the PID temperature control artificial intelligent industrial regulator;
the second output end of the engine oil tank is connected with the heat medium input end of the heat exchanger, and the heat medium output end of the heat exchanger is connected with the second input end of the three-way regulating valve; and the refrigerant input end and the refrigerant output end of the heat exchanger are connected with an external cold water pipeline.
Further, the engine comprises a fuel oil inner cavity connected with the output end of the three-way regulating valve, and an oil rail and a rail pressure sensor used for detecting oil pressure on the oil rail are arranged in the fuel oil inner cavity.
Further, an engine oil nozzle connected with the output end of the injection electromagnetic valve is arranged in the engine; the target area sprayed by the engine oil nozzle in the cylinder body of the engine is formed by an organic glass plate with marks.
Further, an engine oil nozzle connected with the output end of the injection electromagnetic valve is arranged in the engine; the target area sprayed by the engine oil nozzle in the cylinder body of the engine is formed by an organic glass plate with marks.
Furthermore, an overflow valve is arranged on a pipeline between the second output end of the engine oil tank and the heat medium input end of the heat exchanger.
Furthermore, the engine oil tank is electrically connected with a floating ball liquid level switch, and the floating ball liquid level switch is electrically connected with the heater and the gear pump.
Furthermore, an exhaust port for communicating the inner cavity of the engine oil tank with the atmosphere is arranged at the upper end of the engine oil tank.
Further, a liquid level meter is further arranged in the engine oil tank.
Through the technology, the device has the advantages of multiple functions, simple structure, safe operation, convenient maintenance and lower cost; the switching of pipeline can be realized to the switching of different valves, and wherein the gear pump can realize multiple functions. The device not only can be used as an oil supply device for high-temperature engine oil and high-pressure engine oil meeting the test requirements in various reliability tests of the engine, but also can be used for independently carrying out an engine oil injection targeting test and a dynamic engine fuel oil supply system pressure loading test, thereby realizing multiple functions of one set of equipment.
Drawings
FIG. 1 is a schematic structural diagram of an engine oil loading and spraying experimental device;
FIG. 2 is a schematic diagram of an oil tank refueling operation;
FIG. 3 is a schematic illustration of an oil tank pressurization operation;
FIG. 4 is a schematic illustration of an oil injection operation;
FIG. 5 is a schematic view of the oil draining operation;
FIG. 6 is a schematic diagram of a rail oil pressure test.
In the figure: an oil drain valve 1; an oil filling ball valve 2; an oil return ball valve 3; a gear pump 4; an overflow valve 5; an in-tank oil temperature sensor 6; a PID temperature control artificial intelligence industrial regulator 7; filtering the engine oil 8; a PID voltage regulation artificial intelligence industrial regulator 9; a heat exchanger 10; a three-way regulator 11; a pressure gauge 12; an output oil pressure sensor 13; an output oil temperature sensor 14; an injection solenoid valve 15; a two-way regulator 16; a float level switch 17; an engine oil tank 18; a liquid level gauge 19; an exhaust port 20; a heater 21; an engine 22; an oil jet 23; an organic glass plate 24; a fuel inlet 25; an oil rail 26; rail pressure sensor 27.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples, which should not be construed as limiting the invention but are by way of example only, and the advantages thereof will become more apparent and readily appreciated by way of illustration.
As shown in figure 1, the invention is composed of a gear pump 4, an oil tank 18, a PID temperature control artificial intelligence industrial regulator 7, an oil filter 8, a PID pressure regulating artificial intelligence industrial regulator 9, a heat exchanger 10, a three-way regulator 11, an injection electromagnetic valve 15, a two-way regulator 16 and an oil nozzle 23 arranged on the cylinder wall of an engine 22. The top of the oil tank 18 is provided with an exhaust port 20, the middle is provided with a liquid level meter 19, the side is provided with a heater 21 and a float ball liquid level switch 17, and the bottom is provided with an oil discharge valve 1 and a tank temperature sensor 6. They are connected by a plurality of oil pipes: an oil filling ball valve 2 is arranged at the position of the oil inlet pipe, an oil return ball valve 3 is arranged on the oil return pipe, an oil pressure gauge 12, an output oil pressure sensor 13 and an output oil temperature sensor 14 are sequentially arranged in a high-pressure oil pipe behind the three-way regulator 11, and an injection electromagnetic valve 15 is connected in series in an oil pipe leading to the engine.
The PID temperature control artificial intelligence industrial regulator 7 is used as a temperature control instrument in the device, one end of the PID temperature control artificial intelligence industrial regulator is connected with a heating pipe 21 on the engine oil tank 18, and the operation or disconnection of the heating pipe is controlled after PID operation is carried out through an in-tank engine oil temperature signal transmitted by an in-tank temperature sensor 6 at the bottom of the receiver oil tank 18, so that the temperature of the in-tank engine oil is guaranteed to fluctuate within 100 +/-2 ℃. The other end of the three-way regulating valve 11 is connected with the oil outlet pipe, the opening of the three-way regulating valve 11 is controlled after PID calculation is carried out by receiving a temperature signal in the oil outlet pipe transmitted by an oil outlet temperature sensor 14, and the engine oil in the main oil way and the auxiliary oil way is mixed in proportion (wherein the main oil way is high-temperature oil with the temperature of 100 +/-2 ℃ which is heated in an engine oil tank 18 through a heating pipe 21, and the auxiliary oil way is low-temperature oil which is subjected to water cooling treatment through a heat exchanger 10), so that the oil outlet temperature meets the set oil temperature (such as.
The PID pressure regulating artificial intelligent industrial regulator 9 is used as a pressure regulating instrument in the device and is connected with a two-way regulating valve 16. The PID pressure regulating artificial intelligent industrial regulator 9 receives the oil pressure information transmitted by the output oil pressure sensor 13, and controls the opening of the two-way regulating valve 16 after PID operation, so that the oil pressure and the flow in an output oil path are correspondingly changed. When the opening degree of the valve is increased, the flow in the output oil way is reduced, and the oil pressure is reduced; when the valve opening degree becomes smaller, the flow rate in the output oil passage increases and the oil pressure rises. The oil pressure value in the output oil passage is generally set by the experimenter according to the test requirements.
The device is provided with two protection elements, one is an overflow valve 5 connected with an output oil pipe of the gear pump 4 and an engine oil tank 18 in parallel, and the other is a float level switch 17 arranged on the side surface of the engine oil tank 14. The overflow valve 5 is used as an overload protection element, so that the oil pressure in the pipeline is controlled within a safety range, and the peak clipping treatment is also carried out on the oil pressure fluctuation. When the output oil pressure is greater than the warning oil pressure, the overflow valve is opened to force the pipeline to reduce the pressure. As an oil quantity monitoring element of the testing device, one end of a float ball liquid level switch 17 is connected with a heater, and the other end of the float ball liquid level switch is connected with a gear pump. When the oil amount in the oil tank 18 is lower than the set lower limit value, the oil tank forces the heating pipe and the gear pump to stop working, so as to avoid equipment damage caused by idling of the gear pump and empty burning of the heater. When the oil in the engine oil tank 18 is higher than the set lower limit value, the gear pump and the heating pipe are closed and work again. In addition, the top of the engine oil tank 18 is provided with an exhaust port 20, so that the pressure of the engine oil in the engine oil tank 8 is kept equal to the external atmospheric pressure, and the engine oil tank is safe and reliable.
When the experimental device executes the oiling operation, as shown in fig. 2, the oil discharge valve 1 and the oil return ball valve 3 are manually disconnected, the oil filling ball valve 2 is closed, the two-way regulating valve 16 is opened, and the gear pump 4 is opened, so that the engine oil in the external oil storage device is extracted through the gear pump 4 and flows into the engine oil tank 18 through the oil filling ball valve 2, the gear pump 4, the engine oil filter 8, the three-way regulating valve 11 and the two-way regulating valve 16. A liquid level meter 19 in the engine oil tank 18 displays the oil amount in the oil tank, when the engine oil is full, the gear pump 4 is manually closed, the oil filling ball valve 2 is disconnected, the oil filling is stopped, and meanwhile, a working circuit of a joint heater 21 is connected, and the heating pipe starts to work. When the oil temperature sensor 6 in the tank displays that the oil temperature is higher than the maximum allowable value of 102 ℃, the PID temperature control artificial intelligent industrial regulator 7 forcibly turns off the heating circuit, and the heater 21 stops heating; when the oil temperature sensor 6 in the tank displays that the oil temperature is lower than the minimum allowable value of 98 ℃, the PID temperature control artificial intelligence industrial regulator 7 is connected with the heating circuit again, and the heater 21 stops heating and starts to heat the engine oil in the engine oil tank 18.
When the experimental device executes the oiling operation, as shown in fig. 3, the oil discharge valve 1 and the oiling ball valve 2 are disconnected, the oil return ball valve 3 and the two-way regulating valve 16 are connected, and engine oil in the experimental device forms a pressurizing loop through the gear pump 4, the engine oil filter 8, the three-way regulating valve 11, the two-way regulating valve 16, the engine oil tank 18, the oil return valve 3 and the oiling valve 2. Because the oil pressure in the oil circuit is lower than the set value, the two-way regulating valve 16 is still closed under the control of the PID pressure regulating artificial intelligent industrial regulator 9, and the oil in the loop is still static. At this time, the gear pump is started, and the oil pressure in the static oil path begins to rise along with the gear pump. When the oil pressure measured by the oil pressure sensor 13 reaches a set value, a signal is sent to the PID pressure regulating artificial intelligent industrial regulator 9, at the moment, the PID pressure regulating artificial intelligent industrial regulator 9 controls the opening of a two-way regulating valve 16, engine oil starts to circularly flow in a pressurization loop, and the high pressure of the oil pressure is kept constant at an output oil path end between the gear pump and the two-way regulating valve; meanwhile, part of high-oil-pressure oil is transmitted to the overflow valve, and when the oil pressure at the output oil way end is higher than a set warning value, the overflow valve is opened to drain oil. However, because the top of the oil tank 18 is provided with the air outlet 20, the oil pressure of the oil returning to the oil tank 14 from the output oil path is reduced to be equal to the external atmospheric pressure, and the oil pressure in the oil tank 18 is ensured to be normal and safe.
Meanwhile, because the engine oil flows back and forth, the engine oil heated by the heater 21 in the engine oil tank 4 also enters the pressurizing oil circuit, and the temperature of the oil in the oil circuit is increased: the oil temperature on the main oil way from the oil tank 4 to the inlet of the main oil way of the three-way regulating valve 11 through the oil return ball valve 3, the gear pump 4 and the oil filter 8 is consistent with the oil temperature in the oil tank 4 and is kept within the range of 100 +/-2 ℃; and the temperature of the engine oil in the auxiliary oil way which is shunted from the rear end of the gear pump 4 to the heat exchanger 10 to the inlet of the auxiliary oil way of the three-way regulating valve 11 is reduced to about 25 ℃ due to the water cooling function of the heat exchanger 10. The high-temperature engine oil and the low-temperature engine oil in the main oil path and the auxiliary oil path are mixed in proportion in the three-way regulating valve 11, and the engine oil with the temperature of about 80 +/-2 ℃ required by the test is output from an outlet.
Therefore, in the output oil path section from the output oil temperature sensor 14 to the engine 22, the high-pressure constant-temperature engine oil with the temperature and the pressure meeting the test requirement can be obtained. A pressure gauge 12 for displaying oil pressure, an output oil temperature sensor 14 and an output oil pressure sensor 13 are sequentially installed in front of the output oil path. The output oil temperature sensor 14 feeds back the output oil temperature to the PID temperature control artificial intelligence industrial regulator 9, the PID temperature control artificial intelligence industrial regulator 9 carries out PID operation processing on the temperature signal, the output signal controls the valve opening of the three-way regulating valve 11, and the oil temperature feedback processing circuit ensures that the fluctuation range of the output oil temperature is within +/-2 ℃; the output oil pressure sensor 13 feeds back the output oil pressure to the PID pressure regulating artificial intelligent industrial regulator 7, the PID pressure regulating artificial intelligent industrial regulator 7 carries out PID operation processing on the pressure signal, the output electric signal controls the valve opening of the two-way regulating valve 16, and the oil pressure feedback processing circuit ensures that the fluctuation range of the output oil pressure is within +/-0.05 MPa.
When the experimental device executes the engine oil injection operation, as shown in fig. 4, the piston in the cylinder of the engine is firstly detached, the irrelevant engine oil passage ports are completely plugged, and the special glass plate 24 with the mark for the experiment is installed. Then the injection electromagnetic valve 15 is opened, the constant temperature high pressure oil in the output oil section is input into the cylinder oil passage of the engine 22, and is sprayed out through the oil nozzle 23 at the flow rate of more than 30L/min. And observing whether the engine oil sprayed from the engine oil nozzle 23 falls in the marking range of the organic glass plate 24, continuously adjusting the position of the engine oil nozzle 23 to ensure the engine oil falling point, and finally obtaining the optimal position and angle, namely an engine oil spraying targeting test.
When the experimental device executes oil discharge operation, as shown in fig. 5, the gear pump 4, the heater 21, the oil filling ball valve 2, the oil return ball valve 3 and the two-way regulator 16 are all disconnected, all oil passages in the device are disconnected, and all control circuits are powered off and stop working. Then, the oil drain valve 1 at the bottom of the oil tank 18 is opened to drain the oil in the oil tank 18.
The experimental device can perform engine oil injection targeting tests, engine oil temperature control tests, engine oil loading tests and dynamic engine fuel supply system pressure loading tests. The specific operation methods of the first two items are the same as the oil filling operation shown in fig. 2 and the pressurization operation shown in fig. 3, and the required engine oil meeting the test requirements can be directly obtained from the output oil path, which is not described again.
The experimental device is operated as follows when the pressure loading test of the fuel oil supply system of the dynamic engine is executed: the oil drain operation shown in fig. 5 is performed to drain the oil in the oil reservoir 18; then the oiling operation shown in figure 2 is executed to fill the oil tank with the fuel for the test; then, the boosting operation shown in FIG. 3 is performed to warm and pressurize the fuel; finally, as shown in fig. 6, the high-temperature and high-pressure fuel in the output oil path is sent to a fuel rail 26 of the engine, which is provided with a rail pressure sensor 27, through a fuel inlet 25 on the engine 22 by a fuel pipe. The temperature of the fuel in the output oil way is kept in the range of 40 +/-2 ℃ by controlling the PID temperature control artificial intelligent industrial regulator 9 through the oil temperature sensor 14, and meanwhile, the opening degree of a valve of the two-way regulator 16 is controlled through the PID pressure regulating artificial intelligent industrial regulator 7, so that the pressure of the fuel in the output oil way is increased from 0.3 kilogram to 7 kilograms. And then oil pressure change signals in the oil pressure sensor 13 and the rail pressure sensor 27 in the pressurizing oil path are respectively extracted, and the influence of the oil pressure fluctuation and the size on the rail pressure fluctuation of the engine is analyzed, namely the dynamic engine fuel oil supply system pressure loading test is obtained.
All of which are not described in detail above.
Claims (10)
1. The utility model provides an engine oil loading sprays experimental apparatus which characterized in that:
comprises an engine (22) for simulating the engine, an oil tank (18) for storing oil; the engine (22) is provided with an engine oil inner cavity;
a first input end of the engine oil tank (18) is connected with an output end of the three-way regulating valve (11) through the two-way regulating valve (16) in sequence; a first input end of the three-way regulating valve (11) is connected with an output end of the gear pump (4) through the engine oil filter (8);
the input end of the gear pump (4) is connected with an external oil storage device through an oil filling ball valve (2);
the output end of the three-way regulating valve (11) also passes through an injection electromagnetic valve (15); the output end of the injection electromagnetic valve (15) is connected with the input end of the engine oil inner cavity;
and a first output end of the engine oil tank (18) is connected with an input end of the gear pump (4) through an oil return ball valve (3).
2. The engine oil load injection experimental apparatus according to claim 1, characterized in that: the system also comprises a PID voltage regulation artificial intelligence industrial regulator (9);
a pressure gauge (12) and an output oil temperature sensor (14) are arranged between the output end of the three-way regulating valve (11) and the input end of the engine oil cavity; an output oil pressure sensor (13) is arranged at the input end of the two-way regulating valve (16);
the PID pressure regulating artificial intelligence industrial regulator (9) is electrically connected with the two-way regulating valve (16) and the output oil pressure sensor (13).
3. The engine oil load injection experimental apparatus according to claim 2, characterized in that: the system also comprises a PID temperature control artificial intelligence industrial regulator (7), a heat exchanger (10), a heater (21) for heating the engine oil in the engine oil tank (18) and an in-tank oil temperature sensor (6) for detecting the oil temperature in the engine oil tank (18); the heater (21), the three-way regulating valve (11) and the in-tank oil temperature sensor (6) are all electrically connected with the PID temperature control artificial intelligence industrial regulator (7);
a second output end of the engine oil tank (18) is connected with a heat medium input end of the heat exchanger (10), and a heat medium output end of the heat exchanger (10) is connected with a second input end of the three-way regulating valve (11); and the refrigerant input end and the refrigerant output end of the heat exchanger (10) are connected with an external cold water pipeline.
4. The engine oil load injection experimental apparatus of claim 3, characterized in that: the engine (22) comprises a fuel oil inner cavity connected with the output end of the three-way regulating valve (11), and an oil rail (26) and a rail pressure sensor (27) used for detecting oil pressure on the oil rail are arranged in the fuel oil inner cavity.
5. The engine oil load injection experimental apparatus of claim 4, characterized in that: an engine oil nozzle (23) connected with the output end of the injection electromagnetic valve (15) is arranged in the engine (22); the target area of the engine oil nozzle (23) in the cylinder of the engine (22) is formed by a plastic glass plate (24) with marks.
6. The engine oil load injection experimental apparatus according to any one of claims 1 to 3, characterized in that: an engine oil nozzle (23) connected with the output end of the injection electromagnetic valve (15) is arranged in the engine (22); the target area of the engine oil nozzle (23) in the cylinder of the engine (22) is formed by a plastic glass plate (24) with marks.
7. The engine oil load injection experimental apparatus according to any one of claims 1 to 5, characterized in that: an overflow valve (5) is arranged on a pipeline between the second output end of the engine oil tank (18) and the heat medium input end of the heat exchanger (10).
8. The engine oil load injection experimental apparatus according to any one of claims 1 to 5, characterized in that: the oil tank (18) is electrically connected with a floating ball liquid level switch (17), and the floating ball liquid level switch (17) is electrically connected with the heater (21) and the gear pump (4).
9. The engine oil load injection experimental apparatus according to any one of claims 1 to 5, characterized in that: the upper end of the oil tank (18) is provided with an exhaust port (20) which communicates the inner cavity of the oil tank (18) with the atmosphere.
10. The engine oil load injection experimental apparatus according to any one of claims 1 to 5, characterized in that: a liquid level meter (19) is also arranged in the engine oil tank (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911167767.2A CN110793779A (en) | 2019-11-25 | 2019-11-25 | Engine oil loading injection experimental device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911167767.2A CN110793779A (en) | 2019-11-25 | 2019-11-25 | Engine oil loading injection experimental device |
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| CN110793779A true CN110793779A (en) | 2020-02-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959720A (en) * | 2021-09-30 | 2022-01-21 | 东风商用车有限公司 | Oil supply test system for vehicle engine and oil supply test monitoring method for vehicle engine |
| CN114136626A (en) * | 2021-11-25 | 2022-03-04 | 天津航空机电有限公司 | Test device and test method for simulating engine compartment spray fire |
-
2019
- 2019-11-25 CN CN201911167767.2A patent/CN110793779A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959720A (en) * | 2021-09-30 | 2022-01-21 | 东风商用车有限公司 | Oil supply test system for vehicle engine and oil supply test monitoring method for vehicle engine |
| CN114136626A (en) * | 2021-11-25 | 2022-03-04 | 天津航空机电有限公司 | Test device and test method for simulating engine compartment spray fire |
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