CN112177779B - Lubricating oil nozzle with filtering function - Google Patents
Lubricating oil nozzle with filtering function Download PDFInfo
- Publication number
- CN112177779B CN112177779B CN202011127604.4A CN202011127604A CN112177779B CN 112177779 B CN112177779 B CN 112177779B CN 202011127604 A CN202011127604 A CN 202011127604A CN 112177779 B CN112177779 B CN 112177779B
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- Prior art keywords
- nozzle
- lubricating oil
- hole
- filtering function
- filtering
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/06—Arrangements of bearings; Lubricating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N21/00—Conduits; Junctions; Fittings for lubrication apertures
- F16N21/02—Lubricating nipples
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
Abstract
The application provides a take filtering capability's lubricating oil nozzle, it includes: a nozzle housing; at least part of the nozzle is arranged in the nozzle shell, one end of the nozzle is a spray hole, the other end of the nozzle is provided with a plurality of radially arranged filtering holes, and the filtering holes are communicated with the nozzle; a spring disposed between the nozzle housing and the nozzle; and the filter screen covers the filter holes, and the lubricating oil flowing into the spray holes is filtered through the filter screen. The lubricating oil nozzle provided by the application can realize simple filtration before spraying, intercepts the foreign matters possibly blocking the nozzle, effectively guarantees the lubricating oil spraying speed and flow requirement, and guarantees the safe work of an engine.
Description
Technical Field
The application belongs to the technical field of nozzles, in particular to a lubricating oil nozzle with a filtering function.
Background
The lubricating oil nozzle is the most basic part in an aircraft engine and a gas turbine lubricating oil system, and directly provides lubricating oil for lubricating and cooling each fulcrum bearing, gear tooth surface and sealing device. In order to allow oil to pass through the rotating gap (e.g., bearing gap, etc.), the oil jet nozzle should provide sufficient jet velocity in addition to ensuring proper installation and spraying of oil to the desired location. In order to achieve both the spraying speed and prevent the nozzle holes from being blocked, the aperture of the nozzle is generally between 0.6mm and 1.2mm, and when a larger flow is required, a plurality of nozzle holes are often adopted to ensure the flow.
At present, the lubricating oil nozzles used by aero-engines and gas turbines generally directly spray out the lubricating oil pressurized by a pump set, and the nozzles are simple in structure and reliable in operation, but have no filtering function and risk of foreign matter blockage. Although in the lubricating oil system, the lubricating oil can be kept relatively clean in the circulation process through the lubricating oil filter, in the actual use process of the lubricating oil nozzle, the situation that the residual excess in the engine falls off, foreign matters block or completely block the lubricating oil nozzle part when the foreign matters do not pass through the lubricating oil filter exists inevitably, and once the lubricating oil nozzle is blocked, the gear or the bearing cannot be sufficiently cooled and lubricated, which brings great threat to the safety of the engine.
Disclosure of Invention
It is an object of the present application to provide a lubricating oil nozzle with a filtering function to solve or mitigate at least one of the problems of the background art.
The technical scheme of the application is as follows: a lubricating oil nozzle with a filtering function, comprising:
a nozzle housing;
at least part of the nozzle is arranged in the nozzle shell, one end of the nozzle is a spray hole, the other end of the nozzle is provided with a plurality of radially arranged filtering holes, and the filtering holes are communicated with the nozzle;
a spring disposed between the nozzle housing and the nozzle; and
and the filter screen is covered on the filter hole, and the lubricating oil flowing into the filter hole is filtered through the filter screen.
In a preferred scheme of the application, a plurality of the filtering holes are circumferentially and uniformly distributed along the axis of the nozzle.
In a preferred scheme of the application, the end part of the nozzle, which is positioned at one side of the filtering hole, is provided with a process hole, and the process hole is blocked by arranging a pressing plate.
In a preferred embodiment of the present application, the diameter of the inner bore in the nozzle housing adapted to the location of the filter orifice is larger than the diameter of the inner bore at the inlet of the nozzle housing.
In a preferred embodiment of the present application, the mesh diameter of the screen is smaller than the diameter of the nozzle hole of the nozzle.
In a preferred embodiment of the present application, the angle between the nozzle hole of the nozzle and the nozzle axis is set as required.
In a preferred embodiment of the present application, a sealing ring is disposed between the nozzle housing and the nozzle.
In a preferred embodiment of the present application, the sealing ring is at least two.
In a preferred scheme of the application, a clamping groove penetrating through a shell wall is formed in one end, corresponding to the spray hole, of the nozzle shell, a limiting block protruding out of the nozzle body is arranged on the nozzle, and the limiting of the nozzle and the nozzle shell can be achieved through the matching of the limiting block and the clamping groove.
In a preferred embodiment of the present invention, the locking groove includes at least a first portion extending along the axis of the nozzle housing and a second portion perpendicular to the first portion.
The lubricating oil nozzle provided by the application can realize simple filtration before spraying, intercepts the foreign matters possibly blocking the nozzle, effectively guarantees the lubricating oil spraying speed and flow requirement, and guarantees the safe work of an engine.
Drawings
In order to more clearly illustrate the technical solutions provided by the present application, the following briefly introduces the accompanying drawings. It is to be expressly understood that the drawings described below are only illustrative of some embodiments of the invention.
Fig. 1 is a schematic structural view of an oil nozzle with a filtering function according to the present application.
Fig. 2 is a schematic view of the nozzle and nozzle housing assembly of the present application.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.
As shown in fig. 1, the oil nozzle with filtering function provided by the present application mainly includes: nozzle casing 1, nozzle 2, spring 3 and filter screen 4.
The nozzle shell 1 is the main bearing part of the lubricating oil nozzle, a channel is arranged in the nozzle shell, the middle part of the channel is provided with a supporting part 11 formed by a wall with a smaller inner diameter, and the two sides of the channel are respectively provided with a flow cavity 12 formed by a wall with a larger inner diameter and a spring cavity 13.
The left side of the nozzle 2 extends into the channel and is supported by the support 11, and the right side of the nozzle 22 is exposed from the nozzle housing 1. In the left-hand part of the nozzle 2, a plurality of radially open filter openings 21 are provided, which filter openings 21 are located substantially in the flow chamber 12.
The spring 3 is arranged in the spring cavity 13 and sleeved outside the nozzle 2, and two ends of the spring respectively abut against the nozzle shell 1 and the nozzle 2.
The filter screen 4 is wrapped around the filter holes 21 of the nozzle 2, and the lubricating oil in the lubricating oil nozzle can be simply filtered through the filter screen 4.
In the present application, the plurality of filter holes 21 are uniformly distributed in the circumferential direction along the axis of the nozzle 2, so that the lubricant oil can uniformly flow into the nozzle. It will be appreciated that the shape and size of the filter aperture may be adapted to the flow rate of the nozzle 22. For example, in the illustrated embodiment, the filter holes 21 are shaped as racetrack circles.
In the present application, the nozzle hole 22 of the nozzle 2 may have an angle with the axis of the nozzle 2, and the angle may be adjusted according to the desired injection position of the nozzle 2. For example, in the illustrated embodiment, the orifice 22 is not disposed collinear with the axis of the nozzle 2, but is substantially at 45 degrees to the axis of the nozzle 2.
The nozzle 2 is provided with a flow passage inside, and the nozzle 2 is processed from left to right by a drill to form the flow passage, so that a process hole formed by processing the flow passage is reserved at the left end of the nozzle 2, and the process hole is blocked by fixedly arranging a pressing plate 5 at the left side of the nozzle 2.
After the process hole is closed by providing the pressure plate 5 on the left side of the nozzle 2, when the lubricant in the nozzle housing 1 flows, the lubricant forms a circulation flow in the flow chamber 12 in the nozzle housing 1 and further flows into the filter hole 21 (see the flow direction of the lubricant indicated by the arrow in fig. 1). The oil can stably flow into the flow passage of the nozzle 2 through the filter hole 21 provided in the circumferential direction at the left end of the nozzle 2, and the oil ejected from the nozzle hole 22 is stabilized. In order to circulate the oil in the flow chamber 12, the inner diameter of the nozzle housing 1 at the position of the flow chamber 12 is slightly larger than the inner diameter of the nozzle housing 1 at the position where the oil flows in from the left side, so that the oil has a more sufficient space to flow.
The filter screen 4 is fixed at the filtering holes 21 of the nozzle 2 through the clamping ring 6, and the mesh size of the filter screen 4 is slightly smaller than the diameter of the spraying holes 22 so as to ensure that the filter screen 4 can play a filtering role.
In this application, a sealing ring 7 is disposed between the supporting portion 11 of the nozzle housing 1 and the nozzle 2 to prevent oil leakage. Furthermore, the number of the sealing rings 7 between the supporting portion 11 and the nozzle 2 is at least two.
As shown in fig. 2, a clamping groove 14 penetrating through the wall thickness is formed in an end wall of one side of the nozzle housing 1 for mounting the nozzle 2, a limiting ring 23 protruding out of the body structure is arranged on the nozzle 2, a limiting block 24 protruding out of the limiting ring 23 is further arranged on the limiting ring 23, the outer diameter of the limiting ring 23 is approximately the same as the inner diameter of the spring cavity 13 in the nozzle housing 1, and the limiting fixation between the nozzle 2 and the nozzle housing 1 can be achieved through the matching of the limiting block 24 and the clamping groove 14.
The locking groove 14 is formed by a first portion extending in the axial direction of the nozzle housing 1 and a second portion perpendicular to the first portion, and the first portion and the second portion form an L-shaped groove.
The installation process of the lubricating oil nozzle is as follows:
1) firstly, the sealing ring 7 is arranged in the corresponding sealing grooves of the nozzle shell 1 and the nozzle 2;
2) then, the filter screen 4 is sleeved at the front end or the left end of the nozzle 2, and is limited by a clamping ring 6, so that the filter screen 4 cannot fall off;
3) the spring 3 is sleeved from the front end of the nozzle 2 and limited by a limit ring 23 on the nozzle 2;
4) the assembled nozzle assembly is assembled from the rear end to the front end of the nozzle shell 1, the limiting plate 23 of the nozzle 2 is aligned with the clamping groove 14 of the nozzle shell 1, the nozzle 2 is pressed to the flange of the nozzle shell 1 after the limiting plate is aligned with the clamping groove, and then the nozzle 2 is rotated, so that the nozzle 2 and the nozzle shell 1 are limited under the action of the elastic force of the spring 3.
In this case, the lubricating oil nozzle with the filtering function can be mounted to other structures by bolts, flange seats 8, and the like at the front end, and the mounting structure can be changed adaptively according to actual conditions.
During operation, the lubricating oil enters the flow passage of the nozzle 2 from the left side of the nozzle housing 1 through the filter screen 4 and the filter holes 21, and flows to the spray holes 22 for spraying.
This application compares present widely used lubricating oil nozzle, has filtering capability, can guarantee that lubricating oil nozzle is not blockked up by the foreign matter, improves the job stabilization nature and the security of nozzle, and changes in the use, even the orifice diameter of nozzle is less, also can trade the dress through the appropriate filter screen of apolegamy, has better commonality.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A lubricating oil nozzle with a filtering function, characterized by comprising:
a nozzle housing;
at least part of the nozzle is arranged in the nozzle shell, one end of the nozzle is provided with a spray hole, the other end of the nozzle is provided with a plurality of radially arranged filtering holes, and the filtering holes are communicated with the spray hole;
a spring disposed between the nozzle housing and the nozzle; and
and the filter screen is covered on the filter hole, and the lubricating oil flowing into the filter hole is filtered through the filter screen.
2. The oil spray nozzle with filtering function according to claim 1, wherein said filtering holes are circumferentially distributed in uniform manner about an axis of said nozzle.
3. The lubricating oil nozzle with filtering function as claimed in claim 1, wherein the angle of the nozzle orifice to the nozzle axis is set as required.
4. The lubricating oil nozzle with filtering function as claimed in claim 3, wherein the nozzle has a process hole at its end on the side of the filtering hole, and a pressing plate is provided to close the process hole.
5. The filter oil nozzle as claimed in claim 1, wherein the diameter of the inner bore of the nozzle housing adapted to the location of the filter hole is larger than the diameter of the inner bore at the inlet of the nozzle housing.
6. The lubricating oil nozzle with filtering function as claimed in claim 1, characterized in that the mesh diameter of the strainer is smaller than the orifice diameter of the nozzle.
7. The lubricating oil nozzle with filtering function as claimed in claim 1, wherein a seal ring is provided between the nozzle housing and the nozzle.
8. The oil spray nozzle with filtering function according to claim 7, wherein said sealing ring is at least two-way.
9. The lubricating oil nozzle with the filtering function as claimed in claim 1, wherein a slot penetrating through a wall of the casing is provided at an end of the nozzle casing corresponding to the nozzle hole, and a stopper protruding from the nozzle body is provided on the nozzle, and the stopper and the slot are engaged to limit the nozzle from the nozzle casing.
10. The filtered oil nozzle of claim 9, wherein the catch groove comprises at least a first portion extending along the axis of the nozzle housing and a second portion perpendicular to the first portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011127604.4A CN112177779B (en) | 2020-10-20 | 2020-10-20 | Lubricating oil nozzle with filtering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011127604.4A CN112177779B (en) | 2020-10-20 | 2020-10-20 | Lubricating oil nozzle with filtering function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112177779A CN112177779A (en) | 2021-01-05 |
| CN112177779B true CN112177779B (en) | 2022-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011127604.4A Active CN112177779B (en) | 2020-10-20 | 2020-10-20 | Lubricating oil nozzle with filtering function |
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| Country | Link |
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| CN (1) | CN112177779B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236748A (en) * | 2021-05-06 | 2021-08-10 | 中国航发沈阳发动机研究所 | Nozzle and mounting structure thereof |
| CN114526163B (en) * | 2022-04-24 | 2022-07-26 | 中国航发四川燃气涡轮研究院 | Lubricating oil nozzle device and aircraft engine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4096995A (en) * | 1977-04-19 | 1978-06-27 | General Motors Corporation | Variable spray direction fuel injection nozzle |
| US5326034A (en) * | 1993-07-27 | 1994-07-05 | Cummins Engine Company, Inc. | Compact closed nozzle assembly for a fuel injector |
| CN201973434U (en) * | 2011-02-01 | 2011-09-14 | 中国航空动力机械研究所 | Oil injection nozzle with detachable filtering device |
| CN108014539A (en) * | 2017-12-28 | 2018-05-11 | 东风商用车有限公司 | A kind of in-line filter structure |
| CN207421750U (en) * | 2017-11-20 | 2018-05-29 | 中国航发沈阳发动机研究所 | Atomizer filter device |
| CN110382077A (en) * | 2016-10-12 | 2019-10-25 | Hydac处理技术有限公司 | Filter device |
| CN111305951A (en) * | 2020-03-23 | 2020-06-19 | 中国船舶重工集团公司第七0三研究所 | Coarse lubricating oil filter of gas turbine |
| CN111594743A (en) * | 2020-05-25 | 2020-08-28 | 中国船舶重工集团公司第七0三研究所 | Lubricating oil filter of gas turbine |
-
2020
- 2020-10-20 CN CN202011127604.4A patent/CN112177779B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4096995A (en) * | 1977-04-19 | 1978-06-27 | General Motors Corporation | Variable spray direction fuel injection nozzle |
| US5326034A (en) * | 1993-07-27 | 1994-07-05 | Cummins Engine Company, Inc. | Compact closed nozzle assembly for a fuel injector |
| CN201973434U (en) * | 2011-02-01 | 2011-09-14 | 中国航空动力机械研究所 | Oil injection nozzle with detachable filtering device |
| CN110382077A (en) * | 2016-10-12 | 2019-10-25 | Hydac处理技术有限公司 | Filter device |
| CN207421750U (en) * | 2017-11-20 | 2018-05-29 | 中国航发沈阳发动机研究所 | Atomizer filter device |
| CN108014539A (en) * | 2017-12-28 | 2018-05-11 | 东风商用车有限公司 | A kind of in-line filter structure |
| CN111305951A (en) * | 2020-03-23 | 2020-06-19 | 中国船舶重工集团公司第七0三研究所 | Coarse lubricating oil filter of gas turbine |
| CN111594743A (en) * | 2020-05-25 | 2020-08-28 | 中国船舶重工集团公司第七0三研究所 | Lubricating oil filter of gas turbine |
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| Publication number | Publication date |
|---|---|
| CN112177779A (en) | 2021-01-05 |
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