CN220267848U - Adjustable air-clamping direct-injection device - Google Patents
Adjustable air-clamping direct-injection device Download PDFInfo
- Publication number
- CN220267848U CN220267848U CN202322080077.1U CN202322080077U CN220267848U CN 220267848 U CN220267848 U CN 220267848U CN 202322080077 U CN202322080077 U CN 202322080077U CN 220267848 U CN220267848 U CN 220267848U
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- Prior art keywords
- air
- clamping
- nozzle
- premix chamber
- fuel nozzle
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- 238000002347 injection Methods 0.000 title claims abstract description 41
- 239000007924 injection Substances 0.000 title claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000000446 fuel Substances 0.000 claims description 61
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 32
- 239000000295 fuel oil Substances 0.000 abstract description 12
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000012795 verification Methods 0.000 abstract description 6
- 108091023037 Aptamer Proteins 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses an adjustable air-clamping direct-injection device, belongs to the field of internal combustion engine accessories, and solves the problem that the universality of parts is reduced because an aptamer is required to be independently replaced aiming at engines with different displacement of the existing air-clamping direct-injection device. The novel fuel oil mixing device comprises a fuel oil nozzle, an air clamping nozzle and an adapter body, wherein an oil duct, an upper premixing cavity, an adjusting hole and a lower premixing cavity are respectively arranged in the adapter body, the oil duct, the upper premixing cavity, the adjusting hole and the lower premixing cavity are sequentially communicated, the oil duct is communicated with an oil injection port of the fuel oil nozzle, the lower premixing cavity is communicated with an air inlet of the air clamping nozzle, a compressed air interface communicated with the lower premixing cavity is further arranged on one side of the adapter body, a detachable adjusting column is arranged in the adjusting hole in a sealing mode, and a runner which is communicated with the upper premixing cavity and the lower premixing cavity is arranged in the adjusting column. The adjustable air-clamping direct-injection device is matched with different engine requirements, and the universality of parts and the accuracy of early-stage test verification are greatly improved.
Description
Technical Field
The utility model relates to the field of internal combustion engine accessories, in particular to an adjustable air-clamping direct-injection device.
Background
The gas-clamping direct injection system is a novel fuel injection system, and under lower oil pressure, fuel oil is atomized into ultrafine liquid drops at high speed by utilizing the cavitation of gas-liquid two phases and the like and evaporated rapidly, so that a good atomization effect of heavy oil is realized. The gas-clamping direct injection system is characterized by comprising a fuel nozzle, a gas-clamping nozzle and an adapter body, wherein the adapter body is designed with mounting holes of the two nozzles, an internal oil duct and an air duct, the structural size of the internal oil duct directly influences the spraying characteristics of the gas-clamping direct injection system, different displacement engines are required to be matched with different adapter bodies, and the fuel nozzle and the gas-clamping nozzle can be generally compatible with engines with a certain displacement range, so that the gas-clamping direct injection system of the engines with different displacement bodies is required to be independently replaced, the universality of parts is reduced, and especially the adapter body is required to be continuously replaced in the early test verification stage, so that the test verification precision and efficiency are influenced.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art, and aims to provide an adjustable air-clamping direct injection device which is matched with different engine requirements, so that the universality of parts and the accuracy of early test verification are greatly improved.
The technical scheme of the utility model is as follows: the utility model provides a press from both sides gas directly spouts injection apparatus with adjustable, includes fuel nozzle, press from both sides gas nozzle and adapter, fuel nozzle, press from both sides gas nozzle and install the both ends at the adapter respectively, the adapter in be equipped with the oil duct respectively, go up premix chamber, regulation hole and lower premix chamber, oil duct, go up premix chamber, regulation hole, lower premix chamber communicate in proper order, oil duct and fuel nozzle's nozzle orifice intercommunication, lower premix chamber and press from both sides gas nozzle's income gas port intercommunication, adapter one side still be equipped with the compressed air interface with lower premix chamber intercommunication, regulation hole in sealing mounting have detachable regulation post, the regulation post in be equipped with the runner that will go up premix chamber and lower premix chamber intercommunication.
As a further improvement, two ends of the adapter body are respectively provided with a fuel nozzle mounting hole and an air clamping nozzle mounting hole, the fuel nozzle is detachably arranged in the fuel nozzle mounting hole, and the air clamping nozzle is detachably arranged in the air clamping nozzle mounting hole.
Further, sealing rings are arranged between the two ends of the fuel nozzle and the inner wall of the mounting hole of the fuel nozzle and between the air clamping nozzle and the inner wall of the mounting hole of the air clamping nozzle.
Further, one end of the air clamping nozzle is slidably inserted into the air clamping nozzle mounting hole, a connecting flange is arranged on the periphery of the adapter body, and the connecting flange is connected with the engine cylinder cover through a bolt.
Further, the fuel nozzle is inserted in the fuel nozzle mounting hole in a sliding manner, a pressing sleeve for pressing the fuel nozzle is arranged on the adapter body outside the fuel nozzle mounting hole, and the pressing sleeve is connected with the adapter body through a fastening screw.
Further, an oil pipe interface communicated with an oil inlet of the fuel nozzle is arranged on the pressing sleeve.
Further, the axial lead of the oil duct is perpendicular to the axial lead of the upper premixing cavity.
Further, the axial leads of the upper premix chamber, the adjusting hole, the runner and the lower premix chamber are overlapped.
Further, the diameter of the oil duct is smaller than that of the upper premix chamber, the diameter of the runner is smaller than that of the upper premix chamber, and the diameter of the upper premix chamber is smaller than that of the lower premix chamber.
Further, the adjusting column is a T-shaped screw, the adjusting hole is a threaded hole, the screw rod of the T-shaped screw is in threaded connection with the threaded hole, and the runner penetrates through the center of the T-shaped screw.
Advantageous effects
Compared with the prior art, the utility model has the advantages that:
1. according to the adjustable air-clamping direct-injection device, when the adjustable air-clamping direct-injection device works, fuel oil is injected into an adapter body through a fuel channel in the adapter body, enters an upper premixing cavity, is dispersed and mixed in the upper premixing cavity, enters a lower premixing cavity through a runner in an adjusting column, is premixed before an air-clamping nozzle, then enters the air-clamping nozzle, high-pressure air is provided for a pipeline corresponding to a compressed air interface, injection pressure is provided for the air-clamping nozzle, atomization and injection of the fuel oil and the air are realized, and when different displacement is needed, the adjusting column with the runner is arranged in an adjusting hole in the adapter body, and different engine requirements can be matched by changing the adjusting column with different runner apertures, so that the universality of parts and the accuracy of early-stage test verification are greatly improved.
2. According to the adjustable air-clamping direct-injection device, the fuel nozzle and the air-clamping nozzle are arranged in the adapter body in a detachable mounting mode, so that the disassembly, assembly and maintenance are convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic structural diagram of an aptamer according to the present utility model;
FIG. 4 is a schematic cross-sectional structure of an aptamer according to the utility model;
fig. 5 is a schematic cross-sectional view of an adjusting column according to the present utility model.
Wherein: the device comprises a 1-fuel nozzle, a 2-air clamping nozzle, a 3-adapter, a 4-oil duct, a 5-upper premixing cavity, a 6-adjusting hole, a 7-lower premixing cavity, an 8-compressed air interface, a 9-adjusting column, a 10-runner, a 11-fuel nozzle mounting hole, a 12-air clamping nozzle mounting hole, a 13-sealing ring, a 14-pressure sleeve, a 15-fastening screw, a 16-oil pipe interface and a 17-connecting flange.
Detailed Description
The utility model will be further described with reference to specific embodiments in the drawings.
Referring to fig. 1-5, an adjustable air-clamping direct injection device comprises a fuel nozzle 1, an air-clamping nozzle 2 and an adapter body 3, wherein the fuel nozzle 1 and the air-clamping nozzle 2 are respectively arranged at two ends of the adapter body 3, an oil duct 4, an upper premixing cavity 5, an adjusting hole 6 and a lower premixing cavity 7 are respectively arranged in the adapter body 3, the oil duct 4, the upper premixing cavity 5, the adjusting hole 6 and the lower premixing cavity 7 are sequentially communicated, the position of the oil duct 4 corresponds to the position of the fuel nozzle 1, the oil duct 4 is communicated with an oil injection port of the fuel nozzle 1, the position of the lower premixing cavity 7 corresponds to the position of the air-clamping nozzle 2, the lower premixing cavity 7 is communicated with an air inlet of the air-clamping nozzle 2, a compressed air interface 8 communicated with the lower premixing cavity 7 is further arranged at one side of the adapter body 3 and is used for being connected with a pipeline of an air compressor, a detachable adjusting column 9 is arranged in the adjusting hole 6 in a sealing manner, and a runner 10 communicated with the upper premixing cavity 5 and the lower premixing cavity 7 is arranged in the adjusting column 9.
According to the adjustable air-clamping direct injection device, when the adjustable air-clamping direct injection device works, fuel is injected into the adapter body 3 by the fuel nozzle 1, enters the upper premixing cavity 5 through the oil duct 4 in the adapter body 3, is dispersed in the upper premixing cavity 5, enters the lower premixing cavity 7 through the flow channel 10 in the adjusting column 9, premixing of fuel and air is achieved before the air-clamping nozzle 4, then enters the air-clamping nozzle 4, high-pressure air is provided for the pipeline corresponding to the compressed air interface 8, injection pressure is provided for the air-clamping nozzle 4, atomization injection of the fuel and the air is achieved, and when different displacement is needed, the adjusting column 9 with the flow channel 10 can be replaced to match different engine requirements, so that the universality of parts and the accuracy of early test verification are greatly improved.
Preferably, two ends of the adapter body 3 are respectively provided with a fuel nozzle mounting hole 11 and an air-clamping nozzle mounting hole 12, wherein the fuel nozzle 1 is detachably arranged in the fuel nozzle mounting hole 11, and the air-clamping nozzle 2 is detachably arranged in the air-clamping nozzle mounting hole 12.
The adjustable air-clamping direct-injection device of the embodiment has the advantages that the fuel nozzle 1 and the air-clamping nozzle 2 are installed in the adapter body 3 in a detachable installation mode, so that the disassembly, the assembly and the maintenance are convenient.
Preferably, sealing rings 13 are arranged between the two ends of the fuel nozzle 1 and the inner wall of the fuel nozzle mounting hole 11 and between the air clamping nozzle 2 and the inner wall of the air clamping nozzle mounting hole 12, and the sealing rings 13 are O-shaped rings, so that the tightness of fuel or atomized air is ensured.
Preferably, one end of the air clamping nozzle 2 is slidably inserted into the air clamping nozzle mounting hole 12, a connecting flange 17 is arranged on the periphery of the adapter body 3, the connecting flange 17 is connected with the engine cylinder cover through bolts, the air clamping nozzle 2 is inserted into the air clamping nozzle mounting hole 12, the other end of the air clamping nozzle 2 is inserted into the engine cylinder cover, the connecting flange 17 is connected with the engine cylinder cover through bolts, the air clamping nozzle 2 can be pressed and fixed between the adapter body 3 and the engine cylinder cover, the quick installation of the air clamping nozzle 2 is realized, in order to prevent the air clamping nozzle 2 from rotating, a pressing plate can be arranged on one side of the air clamping nozzle 2, a Z-shaped elastic piece (shown in figure 2) is arranged at the bottom of the pressing plate, and after the air clamping direct injection device is installed on an engine, the elastic piece can be used for extruding the engine surface, so that the problem of preventing the air clamping nozzle 2 from loosening is solved.
Preferably, the fuel nozzle 1 is slidably inserted in the fuel nozzle mounting hole 11, the adapter body 3 outside the fuel nozzle mounting hole 11 is provided with a pressing sleeve 14 for pressing the fuel nozzle 1, and the pressing sleeve 14 is connected with the adapter body 3 through a fastening screw 15. During installation, after the fuel nozzle 1 is inserted into the fuel nozzle installation hole 11, the pressing sleeve 14 is covered on the adapter 3 at the outer side of the fuel nozzle 1, finally the pressing sleeve 14 is fixed through the fastening screw 15, the fuel nozzle 1 is extruded by the pressing sleeve 14 to realize the fixation, and the purpose of quick assembly and disassembly is further achieved
Preferably, an oil pipe interface 16 communicated with an oil inlet of the fuel nozzle 1 is formed on the pressing sleeve 14, so that the installation of an oil pipe is facilitated.
Preferably, the axial lead of the oil duct 4 is perpendicular to the axial lead of the upper premixing cavity 5. In the process of oil injection, the fuel nozzle 1 enters the upper premixing cavity 5 through the oil duct 4, and the oil duct 4 is perpendicular to the axial lead of the upper premixing cavity 5, so that the fuel can strike in the upper premixing cavity 5, and the fuel is scattered so as to be premixed with air later. Further, the top of the upper premixing cavity 5 connected with the oil duct 4 is also provided with a conical groove with a narrow upper part and a wide lower part, so that the fuel oil can be well guided downwards to the lower part of the upper premixing cavity 5.
Preferably, the axes of the upper premix chamber 5, the adjusting hole 6, the runner 10 and the lower premix chamber 7 are coincident, so that the fuel in the upper premix chamber can smoothly pass through and enter the lower premix chamber 7.
Preferably, the diameter of the oil duct 4 is smaller than that of the upper premixing cavity 5, the small-diameter oil duct 4 can play a role in accelerating fuel oil, so that the scattering effect of the fuel oil is improved, the diameter of the flow channel 10 is smaller than that of the upper premixing cavity 5, and the same small-diameter flow channel 10 can enable the fuel oil to enter the lower premixing cavity 7 quickly, the diameter of the upper premixing cavity 5 is smaller than that of the lower premixing cavity 7, and the volume of the lower premixing cavity 7 can be increased, so that the fuel oil and air can be mixed conveniently.
Preferably, the adjusting column 9 is a T-shaped screw, and the adjusting hole 6 is a threaded hole, wherein a screw rod of the T-shaped screw is in threaded connection with the threaded hole, and the runner 10 penetrates through the center of the T-shaped screw. Adopt T type screw and screw hole complex structure, when satisfying the quick assembly disassembly demand of adjusting post 9, in-process that adjusts in reality, also can adjust the volume of going up premix chamber 5 and lower premix chamber 7 through changing the T type screw that screw rod height, nut thickness are different, and then adjust the pressure of both to reach the effect of scattering of adjusting the upper premix chamber 5 and the premix effect of lower premix chamber 7, the structure is ingenious more.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these do not affect the effect of the implementation of the present utility model and the utility of the patent.
Claims (10)
1. The utility model provides a press from both sides gas directly spouts injection apparatus with adjustable, includes fuel nozzle (1), press from both sides gas injection nozzle (2) and adapter body (3), fuel nozzle (1), press from both sides gas injection nozzle (2) and install respectively in the both ends of adapter body (3), its characterized in that, adapter body (3) in be equipped with oil duct (4), go up premix chamber (5), regulation hole (6) and premix chamber (7) down respectively, oil duct (4), go up premix chamber (5), regulation hole (6), premix chamber (7) communicate in proper order down, oil duct (4) and the oil spout intercommunication of fuel nozzle (1), lower premix chamber (7) and press from both sides the gas inlet intercommunication of gas injection nozzle (2), adapter body (3) one side still be equipped with the compressed air interface (8) of premix chamber (7) intercommunication down, regulation hole (6) in the sealed install detachable regulation post (9), regulation post (9) in be equipped with and premix chamber (5) and premix chamber (7) runner (10) intercommunication down.
2. The adjustable air-clamping direct-injection device according to claim 1, wherein two ends of the adapter body (3) are respectively provided with a fuel nozzle mounting hole (11) and an air-clamping nozzle mounting hole (12), the fuel nozzle (1) is detachably mounted in the fuel nozzle mounting hole (11), and the air-clamping nozzle (2) is detachably mounted in the air-clamping nozzle mounting hole (12).
3. An adjustable air-entraining direct injection device according to claim 2, characterized in that sealing rings (13) are arranged between the two ends of the fuel nozzle (1) and the inner wall of the fuel nozzle mounting hole (11) and between the air-entraining nozzle (2) and the inner wall of the air-entraining nozzle mounting hole (12).
4. The adjustable air-clamping direct-injection device according to claim 2, wherein one end of the air-clamping nozzle (2) is slidably inserted into the air-clamping nozzle mounting hole (12), a connecting flange (17) is arranged on the periphery of the adapter body (3), and the connecting flange (17) is connected with an engine cylinder cover through bolts.
5. The adjustable gas-clamping direct injection device according to claim 2, wherein the fuel nozzle (1) is slidably inserted into the fuel nozzle mounting hole (11), a pressing sleeve (14) for pressing the fuel nozzle (1) is arranged on the adapter body (3) outside the fuel nozzle mounting hole (11), and the pressing sleeve (14) is connected with the adapter body (3) through a fastening screw (15).
6. The adjustable air-clamping direct injection device according to claim 5, wherein an oil pipe interface (16) communicated with an oil inlet of the fuel nozzle (1) is arranged on the pressure sleeve (14).
7. An adjustable gas-entrained direct injection device according to any of claims 1-6, characterized in that the axis of the oil channel (4) is perpendicular to the axis of the upper premix chamber (5).
8. The adjustable air-entrainment direct injection device of claim 7, wherein the axes of the upper premix chamber (5), the adjusting hole (6), the runner (10) and the lower premix chamber (7) are coincident.
9. The adjustable gas-clamping direct-injection device according to claim 7, wherein the diameter of the oil duct (4) is smaller than the diameter of the upper premix chamber (5), the diameter of the flow passage (10) is smaller than the diameter of the upper premix chamber (5), and the diameter of the upper premix chamber (5) is smaller than the diameter of the lower premix chamber (7).
10. The adjustable air-clamping direct-injection device according to claim 1, wherein the adjusting column (9) is a T-shaped screw, the adjusting hole (6) is a threaded hole, a screw thread of the T-shaped screw is connected in the threaded hole, and the flow channel (10) is arranged in the center of the T-shaped screw in a penetrating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322080077.1U CN220267848U (en) | 2023-08-03 | 2023-08-03 | Adjustable air-clamping direct-injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322080077.1U CN220267848U (en) | 2023-08-03 | 2023-08-03 | Adjustable air-clamping direct-injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220267848U true CN220267848U (en) | 2023-12-29 |
Family
ID=89320099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322080077.1U Active CN220267848U (en) | 2023-08-03 | 2023-08-03 | Adjustable air-clamping direct-injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220267848U (en) |
-
2023
- 2023-08-03 CN CN202322080077.1U patent/CN220267848U/en active Active
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