CN216975085U - A copper ring placement structure for connecting fuel distributor part - Google Patents
A copper ring placement structure for connecting fuel distributor part Download PDFInfo
- Publication number
- CN216975085U CN216975085U CN202220440291.6U CN202220440291U CN216975085U CN 216975085 U CN216975085 U CN 216975085U CN 202220440291 U CN202220440291 U CN 202220440291U CN 216975085 U CN216975085 U CN 216975085U
- Authority
- CN
- China
- Prior art keywords
- main pipe
- copper ring
- seat
- oil inlet
- inlet seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000000446 fuel Substances 0.000 title claims abstract description 21
- 238000003754 machining Methods 0.000 claims abstract description 16
- 238000005219 brazing Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims description 5
- 238000005097 cold rolling Methods 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 38
- 238000000034 method Methods 0.000 description 6
- 239000000295 fuel oil Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to a copper ring placement structure for connecting parts of a fuel distributor, which comprises a main pipe, a sensor seat or an oil inlet seat, and is characterized in that the sensor seat or the oil inlet seat is machined with a groove, and a copper ring is placed in the groove; the inner holes at the two ends of the main pipe are connected and plugged with the oil inlet seat or the sensor seat. The utility model solves the problem that the two ends of the existing main pipe need to be machined with steps, and the end part of the main pipe can be kept in a drawing or cold rolling state without machining the inner steps; the two ends of the inner hole of the main pipe need to be machined with steps, the copper ring needs to be placed into the two ends firstly, the problem that the copper ring is inclined to cause poor brazing when the copper ring is placed into the groove is solved, the copper ring is easily and automatically placed into the groove after modification, the processing amount is reduced, and the processing cost is reduced.
Description
Technical Field
The utility model relates to a fuel distributor of an automobile engine, in particular to a copper ring placing structure for connecting parts of the fuel distributor.
Background
Function of the fuel distributor: the engine has several cylinders, each of which is equipped with an independent fuel injector for supplying gasoline, and all the fuel injectors are connected to a common fuel pipe (fuel rail). The working principle is that gasoline is firstly conveyed from an oil tank into an oil rail by an oil pump according to a certain pressure, the gasoline is conveyed into each oil injector by the constant working pressure in the oil rail, and the oil injectors inject the gasoline into cylinders for combustion according to requirements through an electric control device. The fuel rail is independent from the gasoline engine and is kept unchanged in the whole injection combustion process.
High-pressure oil rail: the fuel oil is directly injected into the cylinder, and the high-pressure airflow in the cylinder is utilized to fully atomize the gasoline so as to achieve the purpose of fully burning the gasoline. Because the gasoline is fully combusted, the economic performance of the fuel oil is greatly improved, the carbon dioxide emission is obviously reduced, and the performance of a high-pressure fuel oil engine has excellent performance, and is a gasoline engine technology which is widely adopted internationally at present.
The existing main pipe is drawn, then inner holes at two ends are machined, and a copper ring is placed in the main pipe and then an oil inlet seat or a sensor seat for plugging during assembly. The machining amount of the two ends of the main pipe is larger, the copper ring is firstly put in, and the copper ring is not conveniently put in the two ends of the main pipe when other parts are installed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to reduce the machining amount of the existing oil rail main pipe parts, and provides a fuel distributor copper ring placing structure for plugging two ends of a main pipe.
The purpose of the utility model is realized by the following technical scheme:
a copper ring placement structure for connecting fuel distributor parts comprises a main pipe, a sensor seat or an oil inlet seat, and is characterized in that the sensor seat or the oil inlet seat is machined with a groove, and a copper ring is placed in the groove; the inner holes at the two ends of the main pipe are connected and plugged with the oil inlet seat or the sensor seat. The number of end cover plugging parts and the number of main pipe machining holes can be reduced.
The inner hole of the main pipe keeps a drawing or cold rolling state, and steps do not need to be machined inside the two ends.
The machining plane of the oil inlet seat or the sensor seat is attached to the two end faces of the main pipe to form a natural dead point, and the depth of the oil inlet seat and the depth of the sensor seat in the main pipe do not need to be considered.
The copper ring is placed in the groove, so that poor brazing caused by the fact that the copper ring is placed askew is avoided, and automatic placement is easy to achieve.
The oil rail needs to bear high-pressure gasoline, all holes need to be sealed, and the oil rail is connected with the two ends of the main pipe through the oil inlet seat or the sensor seat, so that the use number of end covers is reduced, and the cost is reduced.
The oil inlet seat or the sensor seat is machined and is in clearance fit with the main pipe in fit with the outer diameter, so that the gap of a welding seam is ensured, and the brazing effect is met.
The size of the groove part is smaller than the inner diameter D20.1mm of the copper ring by d1, so that the copper ring is easy to put in; d2 is larger than the inner diameter of the copper ring, so that the copper ring can not fall off when the copper ring is placed in the groove; d3 is smaller than the inner diameter of the main pipe by 0.1-0.2mm, and the outer diameter D1 of the copper ring is smaller than the inner diameter of the main pipe by 0.1-0.3mm, so that the oil inlet seat or the sensor seat can be smoothly placed at the two ends of the main pipe after being placed in the copper ring; the machining plane of the oil inlet seat or the sensor seat is attached to the end face of the main pipe to form a natural dead point, and the depth of the oil inlet seat or the sensor seat penetrating into the main pipe is not required to be controlled; whole process clearance fit of putting into, the installation can not interfere, uses the slot to place the copper ring, easily realizes the automation, and bad phenomena such as crooked can not appear in the copper ring, and the effect of brazing is better.
Wherein,
d is the inner diameter of the main pipe;
d1 is the outer diameter of the copper ring;
d2 is the inner diameter of the copper ring;
d1 is the diameter of the groove matched with the copper ring;
d2 is the diameter of the front end of the groove for preventing the copper ring from falling off;
d3 is the outer diameter of the part that mates with the main tube.
Compared with the prior art, the technical advantage of this application lies in:
the utility model provides a method for keeping the inner holes at two ends of a main pipe in a drawing or cold rolling state without machining steps; the copper ring is firstly placed in the groove and then placed at the two ends of the main pipe together; the machining planes of the oil inlet seat and the sensor seat are attached to the two end surfaces of the main pipe to form a natural dead point, and the depth of the oil inlet seat and the sensor seat in the main pipe does not need to be considered; the copper rings do not need to be placed at the two ends of the main pipe, the placement is easy, and the assembly automation is easy to realize.
The main pipe machining process is formed by multiple drawing, annealing, straightening and other processes, the tolerance of +/-0.1 mm can be guaranteed by improving the inner diameter of the main pipe through the precision of a die, and the assembly and brazing requirements of the oil rail can be met without machining steps inside two ends.
Drawings
FIG. 1 is a schematic illustration of an oil rail;
FIG. 2 is a schematic diagram of the original structure;
FIG. 3 is a schematic structural diagram of the present application;
FIG. 4 is a schematic view of the main pipe end;
fig. 5 schematic view of a sensor receptacle
FIG. 6 is a schematic view of a copper ring;
the labels in the figures are:
1. a main pipe;
2. a sensor seat or an oil inlet seat;
3. a copper ring;
4. and (4) end covers.
Detailed Description
The following provides a specific embodiment of a copper ring placement structure for connecting fuel distributor parts.
Example 1
The utility model provides a method for keeping the two ends of a main pipe in a drawing state without machining; the copper ring is matched with the oil inlet seat or the sensor seat 2 to reduce the use of parts of the end cover 4, the oil inlet seat or the sensor seat 2 is provided with a groove, the copper ring 3 is firstly placed in the groove and then placed into the two ends of the main pipe together, the copper ring is not required to be placed into the two ends of the main pipe 1 firstly, the placement is easier, and the assembly automation is easy to realize.
The main pipe machining process is formed by multiple drawing, annealing, straightening and other processes, the tolerance of +/-0.1 mm can be guaranteed by improving the inner diameter of the main pipe through the precision of a die, and the assembly and brazing requirements of the oil rail can be met without machining steps inside two ends.
The oil rail needs to bear high-pressure gasoline, all holes need to be sealed, and the oil rail is connected with the two ends of the main pipe 1 through the oil inlet seat or the sensor seat 2, so that the use number of end covers is reduced, and the cost is reduced.
The oil inlet seat or the sensor seat is machined by the machine 2 and is in clearance fit with the main pipe in fit with the outer diameter, so that the gap of a welding seam is ensured, and the brazing effect is met.
The machining plane of the oil inlet seat or the sensor seat 2 is attached to the two end surfaces of the main pipe to form a natural dead point, and the depth of the oil inlet seat and the sensor seat in the main pipe does not need to be considered.
The size of the groove part is smaller than the inner diameter D20.1mm of the copper ring by d1, so that the copper ring 3 is easy to put in; d2 is larger than the inner diameter of the copper ring 3, so that the copper ring 3 can not fall off when the copper ring 3 is placed in the groove; d3 is smaller than the inner diameter of the main pipe by 0.1-0.2mm, and the outer diameter D1 of the copper ring 3 is smaller than the inner diameter of the main pipe by 0.1-0.3mm, so that the oil inlet seat or the sensor seat 2 can be smoothly placed at the two ends of the main pipe after being placed in the copper ring 3; the machining plane of the oil inlet seat or the sensor seat 2 is attached to the end face of the main pipe to form a natural dead point, and the depth of the oil inlet seat or the sensor seat penetrating into the main pipe is not required to be controlled; whole process clearance fit of putting into, the installation can not interfere, uses the slot to place copper ring 3, easily realizes the automation, and bad phenomena such as crooked can not appear in copper ring 3, and the effect of brazing is better.
Claims (5)
1. A copper ring placement structure for connecting fuel distributor parts comprises a main pipe, a sensor seat or an oil inlet seat, and is characterized in that the sensor seat or the oil inlet seat is machined with a groove, and a copper ring is placed in the groove; the inner holes at the two ends of the main pipe are connected and plugged with the oil inlet seat or the sensor seat.
2. The copper ring placement structure for connecting fuel dispenser parts as set forth in claim 1, wherein the inner hole of the main pipe is maintained in a drawn or cold-rolled state without a step machined inside both ends.
3. The copper ring placement structure for connecting parts of a fuel dispenser as set forth in claim 1, wherein the machining plane of the fuel inlet seat or the sensor seat is attached to both end surfaces of the main pipe to form a natural dead point regardless of the depth of the fuel inlet seat and the sensor seat placed in the main pipe.
4. The copper ring placement structure for connecting parts of a fuel dispenser as set forth in claim 1, wherein the oil rail is connected to both ends of the main pipe through an oil inlet seat or a sensor seat.
5. The copper ring placement structure for connecting parts of a fuel dispenser as claimed in claim 1, wherein the oil inlet seat or the sensor seat is machined to be in clearance fit with the main pipe fitting outer diameter, thereby ensuring a gap between weld joints and satisfying a brazing effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220440291.6U CN216975085U (en) | 2022-03-02 | 2022-03-02 | A copper ring placement structure for connecting fuel distributor part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220440291.6U CN216975085U (en) | 2022-03-02 | 2022-03-02 | A copper ring placement structure for connecting fuel distributor part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216975085U true CN216975085U (en) | 2022-07-15 |
Family
ID=82356860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220440291.6U Active CN216975085U (en) | 2022-03-02 | 2022-03-02 | A copper ring placement structure for connecting fuel distributor part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216975085U (en) |
-
2022
- 2022-03-02 CN CN202220440291.6U patent/CN216975085U/en active Active
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