CN219910992U - Integrated fuel pressure distribution structure - Google Patents
Integrated fuel pressure distribution structure Download PDFInfo
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- CN219910992U CN219910992U CN202321055405.6U CN202321055405U CN219910992U CN 219910992 U CN219910992 U CN 219910992U CN 202321055405 U CN202321055405 U CN 202321055405U CN 219910992 U CN219910992 U CN 219910992U
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- Prior art keywords
- fuel pressure
- pressure distribution
- oil
- regulating valve
- pressure regulating
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- 239000000446 fuel Substances 0.000 title claims abstract description 69
- 230000001105 regulatory effect Effects 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims description 12
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 10
- 239000007924 injection Substances 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 58
- 239000000295 fuel oil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses an integrated fuel pressure distribution structure, belongs to the technical field of piston type internal combustion engine accessories, and solves the problems of difficult installation and high manufacturing cost of an air auxiliary injection system. The fuel pressure distribution structure comprises a fuel pressure distribution block, wherein a first oil outlet and a second oil outlet are respectively formed in two sides of the fuel pressure distribution block, an oil inlet is formed in the front end of the fuel pressure distribution block, the oil inlet is mutually communicated with the first oil outlet and the second oil outlet, an oil return port is formed in the top of the fuel pressure distribution block, a pressure regulating valve is arranged in the fuel pressure distribution block, and the pressure regulating valve is located among the first oil outlet, the second oil outlet, the oil inlet and the oil return port. According to the integrated fuel pressure distribution structure, the plurality of oil outlets are integrated, so that the structure of the air auxiliary injection system is greatly simplified, and the integrated fuel pressure distribution structure has the characteristics of wide application range and strong practicability.
Description
Technical Field
The utility model relates to the technical field of piston type internal combustion engine accessories, in particular to an integrated fuel pressure distribution structure.
Background
The low-pressure air auxiliary 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 low-pressure air auxiliary injection system has good spray characteristics, can form highly layered combustible mixed gas in a cylinder, greatly improves the combustion efficiency and cold starting performance of an engine, and is widely applied to the field of ignition type heavy oil engines. The air-assisted injection system is characterized by comprising a fuel nozzle, an air-assisted direct injection nozzle and a fuel pressure adjusting structure, and is generally and directly assembled at the upper end of a cylinder cover. However, for a multi-cylinder engine, the upper end of each cylinder cover is provided with a set of air auxiliary injection system, so that the weight and the number of parts of the engine are greatly increased, the installation is complicated, and the manufacturing cost is high.
Disclosure of Invention
The utility model aims to solve the technical problems of the prior art, provides an integrated fuel pressure distribution structure, integrates a plurality of oil outlets, greatly simplifies the structure of an air auxiliary injection system, and has the characteristics of wide application range and strong practicability.
The technical scheme adopted by the utility model is as follows: the utility model provides an integrated fuel pressure distribution structure, includes the fuel pressure distribution piece, fuel pressure distribution piece both sides have seted up first oil-out and second oil-out respectively, fuel pressure distribution piece front end seted up the oil inlet, oil inlet and first oil-out, second oil-out communicate each other, fuel pressure distribution piece top seted up the oil return opening, the fuel pressure distribution piece in be equipped with the pressure regulating valve, the pressure regulating valve be located between first oil-out, second oil-out, oil inlet and the oil return opening, fuel pressure distribution piece lower part be equipped with the air chamber, the air chamber bottom seted up the air inlet that is used for controlling the pressure regulating valve.
As a further improvement, a first sealing ring is arranged between the upper part of the pressure regulating valve and the fuel pressure distribution block, and a second sealing ring is arranged between the middle part and the lower part of the pressure regulating valve and the fuel pressure distribution block.
Further, a check ring is arranged between the pressure regulating valve and the fuel pressure distribution block.
Further, the first oil outlet and the second oil outlet are positioned on the same horizontal line.
Further, the upper half part of the pressure regulating valve is arranged in the fuel pressure distribution block, and the lower half part of the pressure regulating valve is arranged in the air cavity.
Further, threaded holes are formed in the first oil outlet, the second oil outlet, the oil inlet and the oil return port.
Advantageous effects
Compared with the prior art, the utility model has the following advantages:
according to the integrated fuel pressure distribution structure, compressed air with a set pressure value is input through the air inlet, fuel enters from the oil inlet after being pressurized by the oil pump, and flows into the two fuel oil injectors from the first oil outlet and the second oil outlet respectively after passing through the oil cavity, when the pressure of the oil cavity reaches the opening pressure of the pressure regulating valve, the pressure regulating valve is opened, part of fuel flows out from the oil return port, the oil supply pressure is ensured to be continuously stable, the whole structure integration level is high, the installation space is effectively reduced, parts and components are reduced, the production cost is effectively reduced, and the integrated fuel pressure distribution structure has the characteristics of convenience in use and wide application range.
Drawings
FIG. 1 is a schematic top view of the present utility model;
FIG. 2 is a schematic view of the cross-sectional structure of F-F in FIG. 1;
FIG. 3 is a schematic view of the cross-sectional structure at D-D in FIG. 1.
Wherein: the device comprises a 1-fuel pressure distribution block, a 2-first oil outlet, a 3-second oil outlet, a 4-oil inlet, a 5-oil return port, a 6-pressure regulating valve, a 7-first sealing ring, an 8-air cavity, a 9-air inlet, a 10-check ring, an 11-threaded hole and a 12-second sealing ring.
Detailed Description
The utility model will be further described with reference to specific embodiments in the drawings.
Referring to fig. 1-3, the integrated fuel pressure distribution structure of the utility model comprises a fuel pressure distribution block 1, wherein a first oil outlet 2 and a second oil outlet 3 are respectively arranged at two sides of the fuel pressure distribution block 1, an oil inlet 4 is arranged at the front end of the fuel pressure distribution block 1, the oil inlet 4 is mutually communicated with the first oil outlet 2 and the second oil outlet 3, an oil return port 5 is arranged at the top of the fuel pressure distribution block 1, a pressure regulating valve 6 is arranged in the fuel pressure distribution block 1, the pressure regulating valve 6 is positioned between the first oil outlet 2, the second oil outlet 3, the oil inlet 4 and the oil return port 5, an air cavity 8 is arranged at the lower part of the fuel pressure distribution block 1, an air inlet 9 for controlling the pressure regulating valve 6 is arranged at the bottom of the air cavity 8, compressed air with a set pressure value is input through the air inlet 9, after the fuel is pressurized by an oil pump, the compressed air flows into the oil inlet 4 from the oil inlet, and then flows into two fuel injectors respectively after passing through the oil cavity, when the pressure of the oil cavity reaches the opening pressure of the pressure regulating valve 6, the pressure regulating valve 6 is opened, and part of the pressure regulating valve 6 flows out from the oil return port 5, the whole structure is ensured to be stable, the whole structure is reduced, the whole structure is effectively, the installation space is reduced, and the cost is effectively reduced.
Specifically, a first sealing ring 7 is arranged between the upper part of the pressure regulating valve 6 and the fuel pressure distribution block 1, a second sealing ring 12 is arranged between the middle part and the lower part of the pressure regulating valve 6 and the fuel pressure distribution block 1, the first sealing ring 7 plays a role in sealing, fuel is prevented from flowing out from the upper part of the pressure regulating valve 6, and the second sealing ring 12 plays a role in sealing, so that gas is prevented from flowing upward from the side edge of the pressure regulating valve 6.
Preferably, a check ring 10 is arranged between the pressure regulating valve 6 and the fuel pressure distribution block 1 to play a role in positioning, so that the pressure regulating valve 6 is installed more stably.
Further, the first oil outlet 2 and the second oil outlet 3 are positioned on the same horizontal line, so that the oil flow rates of the fuel oil injectors flowing to the two sides are ensured to be consistent.
Further, the upper half part of the pressure regulating valve 6 is arranged in the fuel pressure distribution block 1, and the lower half part of the pressure regulating valve 6 is arranged in the air cavity 8, so that the whole structure is more compact, the structural integration level is high, and the installation space is effectively reduced.
Further, threaded holes 11 are formed in the first oil outlet 2, the second oil outlet 3, the oil inlet 4 and the oil return port 5, and connection of all oil ports is facilitated.
When the integrated fuel pressure distribution structure of the embodiment is used, compressed air with a set pressure value is input through the air inlet 9, fuel enters from the oil inlet 4 after being pressurized by the oil pump, flows into the two fuel injectors from the first oil outlet 2 and the second oil outlet 3 respectively after passing through the oil cavity, works, and when the pressure of the oil cavity reaches the opening pressure of the pressure regulating valve 6, the pressure regulating valve 6 is opened, part of fuel flows out from the oil return port 5, so that the fuel supply pressure is ensured to be continuously stable. According to the integrated fuel pressure distribution structure, the plurality of oil outlets are integrated, so that the structure of the air-assisted injection system is greatly simplified, the integral structure is high in integration level, the installation space is effectively reduced, parts and components are reduced, the production cost is effectively reduced, and the integrated fuel pressure distribution structure has the characteristics of being strong in practicability and wide in application range.
While only the preferred embodiments of the present utility model have been described above, 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 (6)
1. The utility model provides an integrated fuel pressure distribution structure, its characterized in that, including fuel pressure distribution piece (1), fuel pressure distribution piece (1) both sides have seted up first oil-out (2) and second oil-out (3) respectively, fuel pressure distribution piece (1) front end seted up oil inlet (4), oil inlet (4) and first oil-out (2), second oil-out (3) communicate each other, fuel pressure distribution piece (1) top seted up oil return opening (5), fuel pressure distribution piece (1) in be equipped with pressure regulating valve (6), pressure regulating valve (6) be located between first oil-out (2), second oil-out (3), oil inlet (4) and oil return opening (5), fuel pressure distribution piece (1) lower part be equipped with air chamber (8), air chamber (8) bottom open air inlet (9) that are used for controlling pressure regulating valve (6).
2. An integrated fuel pressure distribution structure according to claim 1, characterized in that a first sealing ring (7) is arranged between the upper part of the pressure regulating valve (6) and the fuel pressure distribution block (1), and a second sealing ring (12) is arranged between the middle part and the lower part of the pressure regulating valve (6) and the fuel pressure distribution block (1).
3. An integrated fuel pressure distribution structure according to claim 1, characterized in that a retainer ring (10) is arranged between the pressure regulating valve (6) and the fuel pressure distribution block (1).
4. An integrated fuel pressure distribution structure according to claim 1, characterized in that said first outlet (2) and said second outlet (3) are located on the same horizontal line.
5. An integrated fuel pressure distribution structure according to claim 1, characterized in that the upper half of the pressure regulating valve (6) is arranged in the fuel pressure distribution block (1), and the lower half of the pressure regulating valve (6) is arranged in the air chamber (8).
6. An integrated fuel pressure distribution structure according to claim 1, characterized in that the first oil outlet (2), the second oil outlet (3), the oil inlet (4) and the oil return port (5) are provided with threaded holes (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321055405.6U CN219910992U (en) | 2023-05-05 | 2023-05-05 | Integrated fuel pressure distribution structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321055405.6U CN219910992U (en) | 2023-05-05 | 2023-05-05 | Integrated fuel pressure distribution structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219910992U true CN219910992U (en) | 2023-10-27 |
Family
ID=88424487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321055405.6U Active CN219910992U (en) | 2023-05-05 | 2023-05-05 | Integrated fuel pressure distribution structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219910992U (en) |
-
2023
- 2023-05-05 CN CN202321055405.6U patent/CN219910992U/en active Active
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