CN211666801U - Cooling piston fuel injector assembly - Google Patents
Cooling piston fuel injector assembly Download PDFInfo
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- CN211666801U CN211666801U CN202020290680.6U CN202020290680U CN211666801U CN 211666801 U CN211666801 U CN 211666801U CN 202020290680 U CN202020290680 U CN 202020290680U CN 211666801 U CN211666801 U CN 211666801U
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- diesel engine
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Abstract
The utility model discloses mainly be applied to marine diesel engine field, in particular to cooling piston fuel sprayer subassembly, including nozzle pipe and nozzle holder, the nozzle holder is fixed at the entry end of nozzle pipe, sets up the nozzle opening in the nozzle pipe, and the diameter of nozzle opening diminishes by entry end to exit end, and the nozzle holder middle part sets up nozzle pipe clearing hole, and the nozzle pipe entry end runs through the clearing hole to install in the clearing hole, the clearing hole both sides set up the mounting hole respectively, and the mounting hole sets up to waist type hole. The utility model discloses a series of configuration optimization guarantees that the piston of diesel engine can in time be cooled off to reduce the inside machine oil pressure value of organism, avoid the too high use of machine oil pump pressure, reduced the risk of whole diesel engine machine oil seepage when the whole machine oil pressure of diesel engine reduces, strengthened the use reliability of diesel engine. The utility model discloses a structure is more simple, and the performance is more reliable, and weight is lighter. And can be adapted to the design requirements of diesel engines with high strength indexes.
Description
Technical Field
The utility model relates to a cooling piston fuel sprayer subassembly mainly is applied to marine diesel field.
Background
At present, the cooling piston nozzle part for the marine diesel engine is a casting part, the shape structure is heavy, the size is large, in addition, the one-step forming inner cavity of the casting part cannot be machined, the inner cavity of the cooling piston nozzle is a casting surface, the sand cleaning difficulty is large, the inner cavity cannot meet the design requirement due to the blank casting surface, the outlet pressure of the cooling piston nozzle part is lower than the design value, and the influence on the performance of the diesel engine is large. The diameter of the inner cavity of the cooling piston nozzle is only one size, the requirement that the whole engine oil pressure of the diesel engine can meet the design requirement value is met, otherwise, the engine oil cannot be guaranteed to be sprayed into the piston cooling cavity, so that the engine oil pressure of the diesel engine is always in a high-pressure condition, and the risk of engine oil leakage of the diesel engine is increased.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the cooling piston oil nozzle component is reasonable in structure and easy to realize, and can reduce the risk of engine oil leakage caused by too high engine oil pressure.
Cooling piston fuel sprayer subassembly, including nozzle pipe and nozzle holder, the nozzle holder is fixed at the entry end of nozzle pipe, sets up the nozzle opening in the nozzle pipe, the diameter of nozzle opening diminishes by entry end to exit end, nozzle holder middle part sets up nozzle pipe clearing hole, the nozzle pipe entry end runs through the clearing hole to install in the clearing hole, the clearing hole both sides set up the mounting hole respectively, the mounting hole sets up to waist type hole.
The nozzle holder set up to L template type structure, the corner of template type structure sets up to the arc, one of them curb plate of template type structure fixes the entry end of nozzle pipe, and another curb plate is fixed on the outer pipe wall of nozzle pipe.
The oil spray hole is divided into three sections from the inlet end to the outlet end, the diameter of the third section is smaller than that of the second section, and the diameter of the second section is smaller than that of the first section.
The nozzle pipe and the nozzle seat are fixedly connected through welding.
The nozzle pipe is set to be U-shaped and comprises two vertical pipes and a transverse pipe between the two vertical pipes, and the vertical height of the inlet end of the nozzle pipe is higher than that of the outlet end of the nozzle pipe.
The horizontal pipe of the nozzle pipe is arranged in an upward inclined mode from the inlet end to the outlet end.
The assembly comprises two parts, namely a nozzle pipe and a nozzle seat, the cooling piston oil nozzle assembly is a fixed part and is fixed on a diesel engine body, the piston type high-speed moving part of the diesel engine is long in moving stroke, and a certain distance is reserved between the inlet of a piston cooling cavity and a cooling piston nozzle. The inside multiple internal diameter that falls into of nozzle pipe through the continuous reduction of internal diameter, causes the continuous increase of oil pressure to get into nozzle pipe entry with less oil pressure, form great pressure when nozzle pipe exports, thereby make lubricating oil get into in the inside cooling chamber of piston, in order to reach the required cooler oil volume of piston cooling.
The utility model has the advantages that:
the utility model discloses a series of configuration optimization guarantees that the piston of diesel engine can in time be cooled off to reduce the inside machine oil pressure value of organism, avoid the too high use of machine oil pump pressure, reduced the risk of whole diesel engine machine oil seepage when the whole machine oil pressure of diesel engine reduces, strengthened the use reliability of diesel engine. The utility model discloses a structure is more simple, and the performance is more reliable, and weight is lighter. And can be adapted to the design requirements of diesel engines with high strength indexes.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic top view of the structure of fig. 1.
In the figure: 1. an outlet end; 2. a nozzle tube; 3. a nozzle holder; 4. an inlet end; 5. and (7) installing holes.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
as shown in fig. 1 and 2, cooling piston fuel sprayer subassembly, including nozzle pipe 2 and nozzle holder 3, nozzle holder 3 is fixed at the entry end 4 of nozzle pipe 2, sets up the nozzle opening in the nozzle pipe 2, the diameter of nozzle opening is diminished by entry end 4 to exit end 1, nozzle holder 3 middle part sets up nozzle pipe 2 clearing hole, entry end 4 of nozzle pipe 2 runs through the clearing hole to install in the clearing hole, the clearing hole both sides set up mounting hole 5 respectively, mounting hole 5 sets up to waist type hole. The nozzle holder 3 is arranged to be of an L-shaped plate structure, the corners of the plate structure are arranged to be arc-shaped, one side plate of the plate structure fixes the inlet end 4 of the nozzle pipe 2, and the other side plate of the plate structure is fixed on the outer pipe wall of the nozzle pipe 2. The oil spray hole is divided into three sections from the inlet end 4 to the outlet end 1, the diameter of the third section is smaller than that of the second section, and the diameter of the second section is smaller than that of the first section. The nozzle pipe 2 and the nozzle holder 3 are fixedly connected by welding. The nozzle pipe 2 is arranged in a U shape and comprises two vertical pipes and a transverse pipe between the two vertical pipes, and the vertical height of the inlet end 4 of the nozzle pipe 2 is higher than that of the outlet end 1. The horizontal pipe of the nozzle pipe 2 is arranged obliquely upwards from the inlet end 4 to the outlet end 1.
The assembly comprises two parts, namely a nozzle pipe 2 and a nozzle seat 3, the cooling piston oil nozzle assembly is a fixed part, the nozzle seat 3 is fixed on a diesel engine body, the piston type high-speed moving part of the diesel engine is long in moving stroke, a certain distance is reserved between the inlet of a piston cooling cavity and a cooling piston nozzle, and the assembly is characterized in that the nozzle seat 3 can finely adjust the position of the assembly, and the outlet of the cooling piston oil nozzle assembly is aligned with the inlet of the piston cooling cavity and coaxial. Inside the dividing into multiple internal diameter of nozzle pipe 2, through the continuous reduction of internal diameter, cause the continuous increase of oil pressure to get into 2 entrys of nozzle pipe with less oil pressure, form great pressure when 2 exports of nozzle pipe, thereby make lubricating oil get into in the inside cooling chamber of piston, in order to reach the required cooler oil volume of piston cooling.
Claims (6)
1. A cooled piston fuel injector assembly, comprising: including nozzle pipe (2) and nozzle holder (3), entry end (4) in nozzle pipe (2) are fixed in nozzle holder (3), set up the nozzle opening in nozzle pipe (2), the diameter of nozzle opening is diminished by entry end (4) to exit end (1), nozzle holder (3) middle part sets up nozzle pipe (2) clearing hole, nozzle pipe (2) entry end (4) run through the clearing hole, and install at the clearing hole downthehole, the clearing hole both sides set up mounting hole (5) respectively, mounting hole (5) set up to waist type hole.
2. The cooled piston fuel injector assembly of claim 1, wherein: the nozzle holder (3) is arranged to be of an L-shaped plate structure, the corners of the plate structure are arranged to be arc-shaped, one side plate of the plate structure fixes the inlet end (4) of the nozzle pipe (2), and the other side plate of the plate structure is fixed on the outer pipe wall of the nozzle pipe (2).
3. The cooled piston fuel injector assembly of claim 1, wherein: the oil spray hole is divided into three sections from the inlet end (4) to the outlet end (1), the diameter of the third section is smaller than that of the second section, and the diameter of the second section is smaller than that of the first section.
4. The cooled piston fuel injector assembly of claim 1, wherein: the nozzle pipe (2) and the nozzle seat (3) are fixedly connected through welding.
5. The cooled piston fuel injector assembly of claim 1, wherein: the nozzle pipe (2) is set to be U-shaped and comprises two vertical pipes and a transverse pipe between the two vertical pipes, and the vertical height of the inlet end (4) of the nozzle pipe (2) is higher than that of the outlet end (1).
6. The cooled piston fuel injector assembly of claim 5, wherein: the horizontal pipe of the nozzle pipe (2) is arranged obliquely upwards from the inlet end (4) to the outlet end (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290680.6U CN211666801U (en) | 2020-03-11 | 2020-03-11 | Cooling piston fuel injector assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290680.6U CN211666801U (en) | 2020-03-11 | 2020-03-11 | Cooling piston fuel injector assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211666801U true CN211666801U (en) | 2020-10-13 |
Family
ID=72742294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020290680.6U Active CN211666801U (en) | 2020-03-11 | 2020-03-11 | Cooling piston fuel injector assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211666801U (en) |
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2020
- 2020-03-11 CN CN202020290680.6U patent/CN211666801U/en active Active
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