CN113864059A - Oil supply structure in bearing casing in engine air inlet casing - Google Patents
Oil supply structure in bearing casing in engine air inlet casing Download PDFInfo
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- CN113864059A CN113864059A CN202111106694.3A CN202111106694A CN113864059A CN 113864059 A CN113864059 A CN 113864059A CN 202111106694 A CN202111106694 A CN 202111106694A CN 113864059 A CN113864059 A CN 113864059A
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- oil supply
- casing
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- case
- engine
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- 238000007789 sealing Methods 0.000 claims description 37
- 239000000446 fuel Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- KEUKAQNPUBYCIC-UHFFFAOYSA-N ethaneperoxoic acid;hydrogen peroxide Chemical compound OO.CC(=O)OO KEUKAQNPUBYCIC-UHFFFAOYSA-N 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The application specifically relates to an oil feeding structure in bearing machine casket in engine air inlet machine casket includes: the outer engine box is provided with an outer engine box oil supply hole; an inner case disposed in the outer case and having an inner case oil supply hole thereon; the support plates are supported between the outer casing and the inner casing along the circumferential direction, and an oil supply channel is formed in one support plate; the oil supply channel is communicated with the outer casing oil supply hole and the inner casing oil supply hole; the bearing case is connected to the inner side of the inner case and is provided with a bearing case oil supply hole; and the oil nozzle is arranged in the bearing casing, and the inlet of the oil nozzle penetrates through the oil supply hole of the bearing casing, is connected to the inner casing and is communicated with the oil supply hole of the inner casing.
Description
Technical Field
The application belongs to the technical field of oil supply design in an engine air inlet casing inner bearing casing, and particularly relates to an oil supply structure in an engine air inlet casing inner bearing casing.
Background
The engine air inlet casing is a main bearing structure of an engine and mainly comprises an outer casing, an inner casing positioned in the outer casing and support plates circumferentially distributed in the outer casing and the inner casing.
In a certain type of engine, a bearing cartridge case is connected in an inner cartridge case, and is used for supplying oil to components in the bearing cartridge case, an outer cartridge case oil supply hole is arranged on the outer cartridge case, an inner cartridge case oil supply hole is arranged on the inner cartridge case, a support plate is internally provided with a cavity structure, and an oil supply joint, an oil supply pipe, an oil supply adapter and an oil nozzle are arranged, wherein a connecting plate is welded at the outlet end of the oil supply pipe, and the inlet end of the oil supply pipe penetrates through the inner cartridge case oil supply hole and a cavity in the support plate, extends out of the outer cartridge case oil supply hole and is connected with the oil supply joint; the oil supply adapter extends into the oil supply hole of the bearing casing, and the upper connecting edge of the oil supply adapter is connected with the connecting plate on the inner casing through a screw; the oil jet is disposed in the bearing housing, connected to the bearing housing, and communicated with the oil supply hole of the bearing housing, as shown in fig. 1.
Based on above-mentioned structure, carry out the fuel feeding to the part in the engine air intake machine casket inner bearing machine casket, accessible fuel feed connector lets in fluid, and the fluid that lets in fuel feed connector can be through fuel feeding pipe, fuel feeding adapter, bearing machine casket oil feed hole flow direction fuel sprayer, by the oil spout in the bearing machine casket, for the part in the bearing machine casket supplies oil, this kind carries out the structure of fuel feeding to the part in the engine air intake machine casket inner bearing machine casket, has following defect:
1) the oil supply pipe is independent of the outer casing, the inner casing and the support plate, and needs to be processed independently, so that processing errors are easy to introduce, and the oil supply pipe is long in length and difficult to assemble;
2) in the assembling process, the welding part between the outlet end of the oil supply pipe and the connecting plate is easy to generate larger stress to damage;
3) the existing structure of many parts, production, the assembly cycle is longer, and the connecting piece that needs and sealed position are more, are difficult to guarantee the leakproofness.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.
Disclosure of Invention
It is an object of the present application to provide an oil supply arrangement in a bearing cartridge within an engine intake cartridge that overcomes or mitigates at least one aspect of the technical disadvantages known to exist.
The technical scheme of the application is as follows:
an oil supply structure in a bearing casing in an engine intake casing, comprising:
the outer engine box is provided with an outer engine box oil supply hole;
an inner case disposed in the outer case and having an inner case oil supply hole thereon;
the support plates are supported between the outer casing and the inner casing along the circumferential direction, and an oil supply channel is formed in one support plate; the oil supply channel is communicated with the outer casing oil supply hole and the inner casing oil supply hole;
the bearing case is connected to the inner side of the inner case and is provided with a bearing case oil supply hole;
and the oil nozzle is arranged in the bearing casing, and the inlet of the oil nozzle penetrates through the oil supply hole of the bearing casing, is connected to the inner casing and is communicated with the oil supply hole of the inner casing.
According to at least one embodiment of the present application, in the oil supply structure in the bearing casing in the engine intake casing, an inlet of the oil nozzle extends into the oil supply hole in the inner casing.
According to at least one embodiment of the present application, in the oil supply structure in the bearing casing in the engine intake casing, a first annular seal groove is formed between an outer wall at an inlet of the oil nozzle and an inner wall of the oil supply hole of the inner casing;
oil supply structure in the bearing machine casket in the engine air inlet machine casket still includes:
and the first sealing ring is arranged in the first annular sealing groove.
According to at least one embodiment of the present application, in the oil supply structure in the bearing casing in the engine intake casing, a plurality of first seal rings and corresponding first annular seal grooves are provided.
According to at least one embodiment of the present application, in the oil supply structure in the bearing casing in the engine intake casing described above, an outer wall of the oil jet nozzle has an annular sealing protrusion; a second annular sealing groove is formed between the annular sealing bulge and the inner wall of the bearing casing;
oil supply structure in the bearing machine casket in the engine air inlet machine casket still includes:
and the second sealing ring is arranged in the second annular sealing groove.
According to at least one embodiment of the present application, the oil supply structure in the bearing casing in the engine intake casing further includes:
and the outlet of the oil supply joint is inserted into one end of the oil supply channel communicated with the oil supply hole of the outer casing.
According to at least one embodiment of the present application, in the oil supply structure in the bearing casing in the engine intake casing described above, an outer wall of the oil supply joint has a stopper protrusion; the stop protrusion is connected to a support plate formed with an oil supply passage.
According to at least one embodiment of the present application, in the oil supply structure in the bearing casing in the engine intake casing, an inner wall of one end of the oil supply passage, which is communicated with the oil supply hole of the outer casing, is provided with a limit boss.
According to at least one embodiment of the present application, in the oil supply structure in the bearing casing in the engine intake casing, a third annular seal groove is formed between an outer wall at an outlet of the oil supply joint and an inner wall at one end of the oil supply channel, which is communicated with the oil supply hole of the outer casing;
oil supply structure in the bearing machine casket in the engine air inlet machine casket still includes:
and the third sealing ring is arranged in the third annular sealing groove.
Drawings
FIG. 1 is a schematic illustration of a prior art oil supply configuration in a bearing cartridge of an engine intake cartridge;
FIG. 2 is a schematic illustration of a structure for supplying oil to a bearing cartridge in an engine intake cartridge according to an embodiment of the present disclosure;
wherein:
1-an outer casing; 2-inner casing; 3-a support plate; 4-bearing case; 5-an oil nozzle; 6-first sealing ring; 7-a second sealing ring; 8-an oil supply joint; 9-third sealing ring.
For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1-2.
An oil supply structure in a bearing casing in an engine intake casing, comprising:
an outer case 1 having an outer case oil supply hole formed therein;
an inner case 2 provided in the outer case 1 and having an inner case oil supply hole formed therein;
a plurality of support plates 3 supported between the outer casing 1 and the inner casing 1 along the circumferential direction, wherein an oil supply passage is formed in one support plate 3; the oil supply channel is communicated with the outer casing oil supply hole and the inner casing oil supply hole;
a bearing case 4 connected to the inner side of the inner case 2 and having a bearing case oil supply hole thereon;
and the oil nozzle 5 is arranged in the bearing case 4, penetrates through the bearing case oil supply hole at the inlet, is connected to the inner case 2 and is communicated with the inner case oil supply hole.
For the oil supply structure in the bearing casing in the engine intake casing disclosed in the above embodiment, it can be understood by those skilled in the art that, by using the oil supply structure in the bearing casing in the engine intake casing, oil is supplied to the components in the bearing casing 4, oil can be introduced into the oil supply hole of the outer casing, and the oil introduced into the oil supply hole of the outer casing can flow to the oil nozzle 5 through the oil supply channel and the oil supply hole of the inner casing, and enter the bearing casing 4 through the oil nozzle 5, so as to supply oil to the components in the bearing casing 4.
For the oil supply structure in the bearing casing in the engine intake casing disclosed in the above embodiment, it can be understood by those skilled in the art that the oil supply channel is formed in the support plate 3 to replace the oil supply pipe in the oil supply structure in the existing bearing casing in the engine intake casing, that is, the oil supply pipe is integrated in the support plate 3, so that the processing and the assembly are convenient, and the connection plate welded at the outlet end is not needed to be connected to the inner casing 2, thereby reducing the stress easily generated in the assembly process and the damaged part.
For the oil supply structure in the bearing casing in the engine intake casing disclosed in the above embodiment, it can be understood by those skilled in the art that the oil nozzle 5 is disposed in the bearing casing 4, and the inlet of the oil nozzle 5 is designed to pass through the oil supply hole of the bearing casing, connect to the inner casing 2, and communicate with the oil supply hole of the inner casing.
For the oil supply structure in the bearing casing in the engine intake casing disclosed in the above embodiment, it can be understood by those skilled in the art that the oil supply pipe is integrated in the support plate 3 and the oil supply adapter is integrated on the oil nozzle 5, which is convenient for processing and assembling on one hand, and on the other hand, reduces the number of components of the structure on the whole, needs the corresponding reduction of the connecting piece and the sealing part thereof, and has great advantage for ensuring the sealing property.
In some alternative embodiments, in the oil supply structure in the bearing housing in the engine intake housing, the inlet of the oil nozzle 5 extends into the oil supply hole in the inner housing.
In some optional embodiments, in the oil supply structure in the bearing casing in the engine intake casing, a first annular seal groove is formed between an outer wall at an inlet of the oil nozzle 5 and an inner wall of the oil supply hole of the inner casing;
oil supply structure in the bearing machine casket in the engine air inlet machine casket still includes:
and the first sealing ring 6 is arranged in the first annular sealing groove to ensure the sealing between the outer wall of the inlet of the oil nozzle 5 and the inner wall of the oil supply hole of the inner casing.
In some alternative embodiments, in the oil supply structure in the bearing casing in the engine intake casing, the number of the first sealing rings 6 and the corresponding first annular sealing grooves are plural, and the specific number and the position distribution thereof can be determined by those skilled in the art according to specific practice when applying the technical solution disclosed in the present application.
In some alternative embodiments, in the oil supply structure in the bearing casing in the engine intake casing described above, the outer wall of the oil jet 5 has an annular sealing protrusion; a second annular sealing groove is formed between the annular sealing bulge and the inner wall of the bearing casing 4;
oil supply structure in the bearing machine casket in the engine air inlet machine casket still includes:
and the second sealing ring 7 is arranged in the second annular sealing groove to ensure the sealing between the annular sealing convex part of the outer wall of the oil nozzle 5 and the inner wall of the bearing case 4.
In some optional embodiments, in the oil supply structure in the bearing casing in the engine intake casing, the oil supply structure further includes:
and an outlet of the oil supply joint 8 is inserted into one end of the oil supply channel communicated with the oil supply hole of the outer casing.
For the oil supply structure in the bearing casing in the engine intake casing disclosed in the above embodiment, it can be understood by those skilled in the art that the oil supply structure in the bearing casing in the engine intake casing is used to supply oil to the components in the bearing casing 4, oil can be introduced into the oil supply channel through the oil supply joint 8, the oil introduced into the oil supply channel can flow to the oil nozzle 5 through the oil supply hole of the engine casing, and the oil can flow into the bearing casing 4 through the oil nozzle 5, so as to supply oil to the components in the bearing casing 4.
In some alternative embodiments, in the oil supply structure in the bearing casing in the engine intake casing described above, the outer wall of the oil supply joint 8 has a stop protrusion; the stop lug is connected to the support plate 3 in which the oil supply channel is formed, in order to provide support for the oil supply connection 8.
In some alternative embodiments, in the above oil supply structure in the bearing casing inside the engine intake casing, an inner wall of an end of the oil supply passage communicating with the oil supply hole of the outer casing has a limit boss to limit excessive insertion of the oil supply joint 8 into the end of the oil supply passage communicating with the oil supply hole of the outer casing.
In some optional embodiments, in the oil supply structure in the bearing casing in the engine intake casing, a third annular sealing groove is formed between an outer wall at an outlet of the oil supply joint 8 and an inner wall at one end of the oil supply channel, which is communicated with the oil supply hole of the outer casing;
oil supply structure in the bearing machine casket in the engine air inlet machine casket still includes:
and the third sealing ring 9 is arranged in the third annular sealing groove to ensure the sealing between the outer wall at the outlet of the oil supply joint 8 and the inner wall at one end of the oil supply channel communicated with the oil supply hole of the outer casing.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (9)
1. An oil supply structure in a bearing casing in an engine intake casing, comprising:
the outer engine box (1) is provided with an outer engine box oil supply hole;
the inner casing (2) is arranged in the outer casing (1) and is provided with an inner casing oil supply hole;
a plurality of support plates (3) which are supported between the outer casing (1) and the inner casing (1) along the circumferential direction, wherein an oil supply channel is formed in one support plate (3); the oil supply channel is communicated with the outer casing oil supply hole and the inner casing oil supply hole;
the bearing casing (4) is connected to the inner side of the inner casing (2) and is provided with a bearing casing oil supply hole;
and the oil nozzle (5) is arranged in the bearing casing (4), and the inlet of the oil nozzle penetrates through the oil supply hole of the bearing casing, is connected to the inner casing (2), and is communicated with the oil supply hole of the inner casing.
2. The engine in-intake-case bearing-in-case oil supply structure according to claim 1,
the inlet of the oil nozzle (5) extends into the inner engine box oil supply hole.
3. The engine in-intake-case bearing-in-case oil supply structure according to claim 2,
a first annular sealing groove is formed between the outer wall of the inlet of the oil nozzle (5) and the inner wall of the inner cartridge oil supply hole;
oil supply structure in the bearing machine casket in the engine air inlet machine casket still includes:
a first seal ring (6) disposed in the first annular seal groove.
4. The engine in-intake-case bearing-in-case oil supply structure according to claim 3,
the first sealing rings (6) and the corresponding first annular sealing grooves are multiple.
5. The engine in-intake-case bearing-in-case oil supply structure according to claim 1,
the outer wall of the oil nozzle (5) is provided with an annular sealing bulge; a second annular sealing groove is formed between the annular sealing bulge and the inner wall of the bearing casing (4);
oil supply structure in the bearing machine casket in the engine air inlet machine casket still includes:
a second seal ring (7) disposed in the second annular seal groove.
6. The engine in-intake-case bearing-in-case oil supply structure according to claim 1,
further comprising:
and the outlet of the oil supply joint (8) is inserted into one end of the oil supply channel communicated with the oil supply hole of the outer casing.
7. The engine in-intake-case bearing-in-case oil supply structure according to claim 6,
the outer wall of the oil supply joint (8) is provided with a stop protrusion; the stop protrusion is connected to a support plate (3) formed with the oil supply channel.
8. The engine in-intake-case bearing-in-case oil supply structure according to claim 6,
the inner wall of one end of the oil supply channel, which is communicated with the oil supply hole of the outer casing, is provided with a limiting boss.
9. The engine in-intake-case bearing-in-case oil supply structure according to claim 6,
a third annular sealing groove is formed between the outer wall of the outlet of the oil supply joint (8) and the inner wall of one end, communicated with the oil supply hole of the outer casing, of the oil supply channel;
oil supply structure in the bearing machine casket in the engine air inlet machine casket still includes:
a third seal ring (9) disposed in the third annular seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111106694.3A CN113864059A (en) | 2021-09-22 | 2021-09-22 | Oil supply structure in bearing casing in engine air inlet casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111106694.3A CN113864059A (en) | 2021-09-22 | 2021-09-22 | Oil supply structure in bearing casing in engine air inlet casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113864059A true CN113864059A (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111106694.3A Pending CN113864059A (en) | 2021-09-22 | 2021-09-22 | Oil supply structure in bearing casing in engine air inlet casing |
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| Country | Link |
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| CN (1) | CN113864059A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017184A (en) * | 2022-01-07 | 2022-02-08 | 中国航发沈阳发动机研究所 | Engine air inlet machine casket oil feed structure |
| CN114352414A (en) * | 2022-02-21 | 2022-04-15 | 中国航发沈阳发动机研究所 | Aeroengine air inlet casing structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120011824A1 (en) * | 2010-07-16 | 2012-01-19 | United Technologies Corporation | Integral lubrication tube and nozzle combination |
| CN207989147U (en) * | 2018-02-28 | 2018-10-19 | 中国航发商用航空发动机有限责任公司 | aero-engine |
-
2021
- 2021-09-22 CN CN202111106694.3A patent/CN113864059A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120011824A1 (en) * | 2010-07-16 | 2012-01-19 | United Technologies Corporation | Integral lubrication tube and nozzle combination |
| CN207989147U (en) * | 2018-02-28 | 2018-10-19 | 中国航发商用航空发动机有限责任公司 | aero-engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017184A (en) * | 2022-01-07 | 2022-02-08 | 中国航发沈阳发动机研究所 | Engine air inlet machine casket oil feed structure |
| CN114352414A (en) * | 2022-02-21 | 2022-04-15 | 中国航发沈阳发动机研究所 | Aeroengine air inlet casing structure |
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