CN217632747U - Oil sprayer atomization detection device - Google Patents
Oil sprayer atomization detection device Download PDFInfo
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- CN217632747U CN217632747U CN202221863189.3U CN202221863189U CN217632747U CN 217632747 U CN217632747 U CN 217632747U CN 202221863189 U CN202221863189 U CN 202221863189U CN 217632747 U CN217632747 U CN 217632747U
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Abstract
The utility model belongs to the technical field of injection pump test bench test, a sprayer atomizing detection device is related to. The related oil sprayer atomization detection device is provided with a test bed fixed with a support plate; the oil sprayer is arranged on the supporting plate; a transparent cover plate is also arranged on the test bed; the transparent cover plate is L-shaped, one end of the transparent cover plate is lapped with the support plate, and the other end of the transparent cover plate is supported on the test bed; a test space is formed among the transparent cover plate, the support plate and the test bed; a high-speed camera is fixed on the transparent cover plate; the test bed is also provided with an air cylinder; a piston is arranged in the cylinder; the top of the cylinder is communicated with a five-way body; the five-way body is communicated with an oil cup; the five-way body is communicated with an oil sprayer through a high-pressure oil pipe; the high-speed camera and the oil injector are coaxially arranged; the test space is internally provided with a transparent baffle which divides the test space into a left part and a right part, wherein the right part is a spray space of the oil sprayer. The utility model discloses can detect the atomizing state of sprayer, the atomizing angle of analysis sprayer runs through apart from, the shape.
Description
Technical Field
The utility model belongs to the technical field of injection pump test bench test, mainly relate to a sprayer atomization detection device.
Background
The fuel injector is used as one of key parts of a fuel system of an engine, is injected into a cylinder through a nozzle to form an atomized state, and is mixed with air to combust; in the oil injection process of the oil injector, the fuel state sprayed by the nozzle directly influences the combustion state in the combustion chamber, and further determines the fuel economy, the dynamic property and the emission performance of the engine; therefore, it is necessary to intensively study the atomization state of the fuel sprayed from the fuel injector, understand the fuel sprayed from the fuel injector, and improve and optimize the performance of the fuel injector in time according to the atomization state.
The existing fuel injection pump test bed is mainly used for fuel injection quantity test tests of a fuel injection pump, a fuel injector and a high-pressure fuel pipe, and a fuel injector atomization state detection device is not established; only whether the atomization state of the oil sprayer is normal can be observed, and the atomization angle, penetration distance, shape and the like of the oil sprayer cannot be deeply analyzed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sprayer atomization detection device makes its atomizing state that can detect the sprayer, and the atomizing angle of analysis sprayer runs through apart from, the shape.
The utility model adopts the following technical proposal for completing the above purposes:
a fuel injector atomization detection device is provided with a test bed; a supporting plate is fixed on the test bed; the supporting plate is arranged perpendicular to the test bed; an oil sprayer is arranged on the supporting plate; the test bed is also provided with a transparent cover plate; the transparent cover plate is L-shaped, one end of the transparent cover plate is lapped with the support plate, and the other end of the transparent cover plate is supported on the test bed; a test space is formed among the transparent cover plate, the support plate and the test bed; a high-speed camera for recording the oil spraying and atomizing state is fixed on the transparent cover plate; the test bed is also provided with an air cylinder; a piston used for pressurizing fuel oil is arranged in the cylinder; the piston is connected with a connecting rod; the top of the cylinder is communicated with a five-way body; the five-way body is communicated with an oil cup for adding fuel oil into the cylinder; the five-way body is communicated with the oil sprayer through a high-pressure oil pipe; the high-speed camera and the oil sprayer are coaxially arranged; the test space is internally provided with a transparent baffle which divides the test space into a left part and a right part, wherein the right part is a spraying space of the oil sprayer.
A one-way valve is arranged between the oil cup and the air cylinder; a filter with the filtering precision of 5um is arranged at the central outlet of the oil cup and is used for filtering fuel oil; the fuel enters the five-way body through the one-way valve, and the one-way valve is used for preventing the fuel from flowing back.
The connecting rod is arranged on the cylinder through a pin, one end of the connecting rod is connected with the piston, and the other end of the connecting rod is connected with the loop bar; the piston is driven by the connecting rod to reciprocate up and down through the manual force application, thereby achieving the purpose of pressurizing the fuel,
the upper part of the five-way body is connected with a pressure gauge for displaying the pressure of fuel oil, the lower part of the five-way body is connected with a cylinder, and the fuel oil pressurized in the cylinder by a piston enters an oil sprayer through a high-pressure oil pipe; the fuel oil enters the cylinder through the oil cup and the one-way valve, the piston presses the fuel oil into the oil sprayer, when the fuel oil pressure in the oil sprayer reaches the opening pressure of the oil sprayer, the oil sprayer starts oil spraying, at the moment, the high-speed camera records the atomizing state of the oil spraying, and the spraying image is transmitted back to the computer through the data line for analysis.
A step unthreaded hole for mounting a fuel injector is formed in the supporting plate; the oil return hole at the upper part of the oil sprayer is provided with a single-head pipe joint, the other end of the single-head pipe joint is connected with an oil return hose, and the oil return hose is connected to an oil tank and used for collecting oil return of the oil sprayer; two threaded holes are formed in the periphery of the stepped unthreaded hole, the pressing plate is sleeved on the oil injector body, two kidney holes are formed in two sides of the pressing plate, and the kidney holes are convenient for positioning and aligning screws.
The test bed is provided with a threaded hole, a connector body is installed, the other end of the connector body is connected with a hose, and the hose is connected to an oil tank and used for collecting fuel sprayed by an oil sprayer.
The utility model provides a sprayer atomization detection device, adopt above-mentioned scheme, can detect the atomizing state of sprayer, the atomizing angle of analysis sprayer, run-through distance, shape; when the oil sprayer starts spraying, the spraying state of the oil sprayer is captured by the high-speed camera and transmitted to the computer through the data line, so that the spraying state of the oil sprayer can be analyzed, and fuel oil flowing out of an oil return hole of the oil sprayer and fuel oil sprayed by the oil sprayer enter the oil tank.
Drawings
Fig. 1 is an installation schematic diagram of the atomization detection device of the present invention;
FIG. 2 is a cross-sectional view of a fuel injector atomization detection device;
in fig. 1, 1 is a high-speed camera, 2 is a transparent baffle, 3 is a transparent cover plate, 4 is a sealing gasket, 5 is a support plate, 6 is an oil sprayer, 7 is a screw, 8 is a gasket, 9 is a pressure plate, 10 is a single-end pipe connector, 11 is an oil return hose, 12 is a high-pressure oil pipe, 13 is a pin, 14 is a connecting rod, 15 is a loop bar, 16 is a connector body, and 17 is a hose; 18 is a piston, 19 is a cylinder, 20 is a pressure regulating valve, 21 is a five-way body, 22 is a pressure gauge, 23 is a one-way valve, 24 is a filter, 25 is an oil cup, 26 is a bolt, 27 is a gasket, 28 is a nut, and 29 is a test bench.
Detailed Description
The invention is described in connection with the accompanying drawings and the detailed description:
as shown in fig. 1 and 2, fuel is added through an oil cup 25, and a filter 24 with a filtering precision of 5um is installed at the central outlet of the oil cup 25 and is used for filtering the fuel. The fuel enters the five-way body 21 through the check valve 23, and the check valve 23 functions to prevent the fuel from flowing backward.
The five-way body 21 is a communication body with five connections. The right side of the five-way body 21 is connected with a pressure regulating valve 20 for regulating fuel pressure. The left side is connected with a check valve 23 which is a fuel inlet. The upper part of the five-way body 21 is connected with a pressure gauge 22 for displaying fuel pressure. The lower part is connected with a cylinder 19, and fuel pressurized in the cylinder 19 through a piston 18 enters the fuel injector 6 through a high-pressure fuel pipe 12. The connecting rod 14 is mounted on a cylinder 19 by a pin 13, and one end of the connecting rod 14 is connected with a piston 18, and the other end is connected with a loop bar 15. The connecting rod 14 is moved by manual force application, the connecting rod 14 drives the piston 18 to reciprocate up and down, so that the purpose of pressurizing fuel is achieved, and the pressure of the fuel entering the fuel injector 6 can be regulated through the pressure regulating valve 20. The bottom of the cylinder 19 is a steel plate, four unthreaded holes with the diameter of 11mm are uniformly distributed around the steel plate, and the cylinder 19 is fixed on a test bed 29 by using bolts 26, gaskets 27 and nuts 28. The test bed 29 is a square table and serves as a basic bed of the atomization detection device of the fuel injector 6.
The middle part of the five-way body 21 is provided with a pipe joint for connecting the high-pressure oil pipe 12. The pressurized fuel enters the fuel injector 6 through the high-pressure fuel pipe 12. The fuel injector 6 is mounted on a support plate 5, and the support plate 5 is a thick steel plate and is fixed on the test bed 29 through welding. A stepped unthreaded hole is formed in the side face of the supporting plate 5 and used for installing the oil injector 6, a single-head pipe connector 10 is installed in an oil return hole in the upper portion of the oil injector 6, the other end of the single-head pipe connector 10 is connected with an oil return hose 11, and the oil return hose 11 is connected into an oil tank and used for collecting return oil of the oil injector 6. The nozzle is sealed by a sealing gasket 4 to prevent fuel leakage. Two threaded holes are formed in the periphery of the stepped hole, the pressing plate 9 is sleeved on the fuel injector 6, two kidney holes are formed in two sides of the pressing plate 9, and the kidney holes are convenient for positioning and aligning of the screws 7. The fuel injector 6 is fixed to the support plate 5 by a washer 9 using a screw 7. Meanwhile, in order to perform spray detection tests on various types of fuel injectors 6, various types of stepped holes can be formed in the support plate 5 and matched with corresponding fuel injectors 6, so that the spray detection tests of various fuel injectors 6 can be performed.
The right side portion of the supporting plate 5 is covered with a transparent cover plate 3. The transparent cover 3 may be made of glass or other transparent materials. The transparent cover plate 3 is separated by the transparent baffle plate 2, the high-speed camera 1 is installed on the transparent cover plate 3 on the left side of the transparent baffle plate 2, and the central line of the high-speed camera 1 is overlapped with the axis of the oil sprayer 6. The right side of the transparent baffle 2 is a spraying space of the fuel injector 6, a threaded hole is formed in the test bed 29, a connector body 16 is installed, the other end of the connector body 16 is connected with a hose 17, and the hose 17 is connected to a fuel tank and used for collecting fuel sprayed by the fuel injector 6. When the oil sprayer 6 starts to spray, the spraying state of the oil sprayer 6 is captured by the high-speed camera 1 and is transmitted to a computer through a data line, so that the atomizing state of the oil sprayer 6 can be analyzed, and fuel oil flowing out of an oil return hole of the oil sprayer 6 and fuel oil sprayed by the oil sprayer 6 enter an oil tank.
Claims (6)
1. The utility model provides a sprayer atomizing detection device which characterized in that: the oil sprayer atomization detection device is provided with a test bed; a support plate is fixed on the test bed; the supporting plate is arranged perpendicular to the test bed; an oil sprayer is arranged on the supporting plate; the test bed is also provided with a transparent cover plate; the transparent cover plate is L-shaped, one end of the transparent cover plate is in lap joint with the support plate, and the other end of the transparent cover plate is supported on the test bed; a test space is formed among the transparent cover plate, the support plate and the test bed; a high-speed camera for recording the oil spraying and atomizing state is fixed on the transparent cover plate; the test bed is also provided with an air cylinder; a piston for pressurizing fuel oil is arranged in the cylinder; the piston is connected with a connecting rod; the top of the cylinder is communicated with a five-way body; the five-way body is communicated with an oil cup for adding fuel oil into the cylinder; the five-way body is communicated with the oil injector through a high-pressure oil pipe; the high-speed camera is coaxially arranged with the oil sprayer; the test space is internally provided with a transparent baffle which divides the test space into a left part and a right part, wherein the right part is a spray space of the oil sprayer.
2. The fuel injector atomization detection device according to claim 1, characterized in that: a one-way valve is arranged between the oil cup and the air cylinder; a filter is arranged at the central outlet of the oil cup, and the filtering precision is 5um.
3. The fuel injector atomization detection device according to claim 1, characterized in that: the connecting rod is arranged on the cylinder through a pin, one end of the connecting rod is connected with the piston, and the other end of the connecting rod is connected with the loop bar.
4. The fuel injector atomization detection device according to claim 1, characterized in that: the upper part of the five-way body is connected with a pressure gauge for displaying the pressure of fuel oil, the lower part of the five-way body is connected with a cylinder, and the fuel oil pressurized in the cylinder by a piston enters an oil sprayer through a high-pressure oil pipe; the fuel oil enters the cylinder through the oil cup and the one-way valve, and the piston presses the fuel oil into the oil sprayer.
5. The fuel injector atomization detection device according to claim 1, characterized in that: a stepped unthreaded hole for mounting a fuel injector is formed in the supporting plate; the oil return hole at the upper part of the oil sprayer is provided with a single-head pipe joint, the other end of the single-head pipe joint is connected with an oil return hose, and the oil return hose is connected to an oil tank and used for collecting oil return of the oil sprayer; two threaded holes are arranged around the stepped unthreaded hole, the pressure plate is sleeved on the oil injector body, and two kidney holes are arranged on two sides of the pressure plate.
6. The fuel injector atomization detection device according to claim 1, characterized in that: the test bed is provided with a threaded hole, a connector body is installed, the other end of the connector body is connected with a hose, and the hose is connected to an oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221863189.3U CN217632747U (en) | 2022-07-20 | 2022-07-20 | Oil sprayer atomization detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221863189.3U CN217632747U (en) | 2022-07-20 | 2022-07-20 | Oil sprayer atomization detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217632747U true CN217632747U (en) | 2022-10-21 |
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ID=83634650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221863189.3U Active CN217632747U (en) | 2022-07-20 | 2022-07-20 | Oil sprayer atomization detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217632747U (en) |
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2022
- 2022-07-20 CN CN202221863189.3U patent/CN217632747U/en active Active
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