CN117339298A - An automatic flushing integrated fuel filter combination device and filtering method - Google Patents
An automatic flushing integrated fuel filter combination device and filtering method Download PDFInfo
- Publication number
- CN117339298A CN117339298A CN202311265031.5A CN202311265031A CN117339298A CN 117339298 A CN117339298 A CN 117339298A CN 202311265031 A CN202311265031 A CN 202311265031A CN 117339298 A CN117339298 A CN 117339298A
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- Prior art keywords
- filter
- oil
- oil filter
- fine
- shell
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- 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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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
- F02C7/22—Fuel supply systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Filtration Of Liquid (AREA)
Abstract
本发明属于航空发动机燃油过滤设计技术领域，提供一种自动冲刷型集成化燃油滤组合装置和过滤方法，解决现有分离结构燃油滤易堵塞不易清洗的问题，本发明装置包括：粗油滤(1)、细油滤(2)、壳体(3)，其中，壳体(3)中心为腔体，壳体(3)腔体右端设有内螺纹，壳体(3)腔体左端开有油路孔，壳体(3)侧壁开有与腔体连通的出油孔和进油孔；壳体(3)腔体内右侧螺接有粗油滤(1)，壳体(3)腔体内左侧插接有细油滤(2)，粗油滤(1)左端设有内孔，细油滤(2)右端插接在粗油滤(1)的内孔中，粗油滤(1)的滤网正对壳体(3)的进油孔，细油滤(2)的滤网对着壳体(3)的出油孔。本发明适用于燃油传输系统。
The invention belongs to the technical field of aircraft engine fuel filtration design. It provides an automatic flushing integrated fuel filter combination device and a filtration method to solve the problem that the existing separated structure fuel filter is easy to clog and difficult to clean. The device of the invention includes: a crude oil filter ( 1), fine oil filter (2), and shell (3). The center of the shell (3) is a cavity. The right end of the cavity of the shell (3) is provided with internal threads. The left end of the cavity of the shell (3) is open. There is an oil passage hole, and the side wall of the housing (3) has an oil outlet hole and an oil inlet hole that are connected to the cavity; the right side of the cavity of the housing (3) is screwed with a crude oil filter (1), and the housing (3) ) A fine oil filter (2) is plugged into the left side of the cavity. The left end of the coarse oil filter (1) is provided with an inner hole. The right end of the fine oil filter (2) is plugged into the inner hole of the coarse oil filter (1). The coarse oil filter The filter screen of the filter (1) is facing the oil inlet hole of the housing (3), and the filter screen of the fine oil filter (2) is facing the oil outlet hole of the housing (3). The invention is suitable for use in fuel delivery systems.
Description
Technical Field
The invention belongs to the technical field of fuel filtering design of aeroengines, and particularly relates to an innovation of a fuel filtering structure in a hydraulic mechanical device for controlling fuel metering of a turboshaft engine.
Background
In an aeroengine fuel control system, a fuel filter module is an important component, so that the fuel filter device is required to be frequently detached, inspected and cleaned in order to avoid fuel filter blockage in the working process of the engine fuel control system, the detachment and cleaning time of the fuel filter device is shortened, the working efficiency of a product is improved, and the design of the fuel filter module becomes important research content. The existing fuel oil filtering device usually adopts a single-stage filtering or multi-stage separation filtering mode, and engineering practical results show that when the number of the filtering devices is increased in multi-stage separation filtering, the blocking situation is also increased, and the working efficiency of products is seriously influenced by the time spent for disassembly and cleaning.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to improve the cleaning efficiency of the fuel filter device, the automatic flushing type integrated fuel filter combination device and the filtering method are provided, and the fuel filter combination device has long service life, low cost and better oil filter effect.
The technical scheme of the invention is as follows: an automatic flushing type integrated fuel filter combination device, comprising:
the oil filter comprises a coarse oil filter 1, a fine oil filter 2 and a shell 3, wherein the center of the shell 3 is a cavity, the right end of the cavity of the shell 3 is provided with internal threads, the left end of the cavity of the shell 3 is provided with an oil path hole, and the side wall of the shell 3 is provided with an oil outlet and an oil inlet which are communicated with the cavity; the right side spiro union has coarse oil to strain 1 in the casing 3 cavity, and the left side has pegged graft in the casing 3 cavity has fine oil to strain 2, and coarse oil strain 1 left end is equipped with the hole, and fine oil strain 2 right-hand member peg graft in coarse oil strain 1's hole, and coarse oil strain 1's filter screen is just to casing 3's inlet port, and fine oil strain 2's filter screen is towards casing 3's outlet port.
The right ends of the crude oil filter 1 and the shell 3 are sealed by a sealing ring.
The left end of the fine oil filter 2 is sealed with the shell 3 through a sealing ring.
The part of the right end of the fine oil filter 2 inserted into the coarse oil filter 1 is sealed by a sealing ring.
The filter screen area of the fine oil filter 2 is larger than that of the coarse oil filter 1.
The filter screen of the fine oil filter 2 is welded on the fine oil filter 2.
The filter screen of the crude oil filter 1 is welded on the crude oil filter 1.
An automatic flushing type integrated fuel filtering method comprises the following steps:
when the product works normally, fuel oil from the gear pump passes through the oil inlet hole and is filtered by the coarse oil filter 1, then enters the cavity in the center of the shell 3, the fuel oil is divided into 2 paths, the 1 st path is filtered by the filter screen of the fine oil filter 2 and then enters the servo control loop by the servo fuel oil device; the 2 nd path of fuel oil and impurities attached to the outer side of the filter screen of the fine oil filter 2 enter the combustion chamber through the oil outlet for combustion.
The beneficial effects of this application lie in: the invention adopts a combination device of coarse oil filtration and fine oil filtration, and has the innovation points that:
1. the multistage filtration adopts a combined matching mode, is different from the traditional multistage separation filtration, and has more compact structure and material saving.
2. The fine oil filter has a self-flushing function, saves equipment disassembly and cleaning time, and improves the reliability of the fuel oil filter and the working efficiency of products.
Drawings
Fig. 1 is a schematic diagram of the structure of the invention, and consists of a coarse oil filter 1 and a fine oil filter 2 in the figure.
Detailed Description
The present application is described in further detail below with reference to the drawings of embodiments.
The present invention will be described in further detail below.
An automatic flushing type integrated fuel filter combination device, as shown in fig. 1, comprises:
the oil filter comprises a coarse oil filter 1, a fine oil filter 2 and a shell 3, wherein the center of the shell 3 is a cavity, the right end of the cavity of the shell 3 is provided with internal threads, the left end of the cavity of the shell 3 is provided with an oil path hole, and the side wall of the shell 3 is provided with an oil outlet and an oil inlet which are communicated with the cavity; the right side in the cavity of the shell 3 is in threaded connection with a crude oil filter 1 which is used for filtering larger pollutants generated by abrasion of a gear pump, carrying out primary filtration on pressurized fuel oil and ensuring the cleaning of fuel oil supplied to a metering valve, a differential pressure valve and a minimum pressure parking valve; the fine oil filter 2 is inserted into the left side of the cavity of the shell 3, and secondary filtration is carried out on the fuel oil after primary filtration, so that the high cleanness of the fuel oil of the servo system is ensured, and the self-flushing function is realized; the left end of the crude oil filter 1 is provided with an inner hole, the right end of the fine oil filter 2 is inserted into the inner hole of the crude oil filter 1, the filter screen of the crude oil filter 1 is opposite to the oil inlet hole of the shell 3, and the filter screen of the fine oil filter 2 is opposite to the oil outlet hole of the shell 3.
The right ends of the crude oil filter 1 and the shell 3 are sealed by a sealing ring.
The left end of the fine oil filter 2 is sealed with the shell 3 through a sealing ring.
The part of the right end of the fine oil filter 2 inserted into the coarse oil filter 1 is sealed by a sealing ring.
The filter screen area of the fine oil filter 2 is larger than that of the coarse oil filter 1.
The filter screen of the fine oil filter 2 is welded on the fine oil filter 2.
The filter screen of the crude oil filter 1 is welded on the crude oil filter 1.
As shown in figure 1, when the product works normally, fuel from a gear pump passes through an oil inlet of a shell 3, is filtered by a coarse oil filter 1 and enters a cavity in the center of the shell 3, the initially filtered fuel is divided into 2 paths, and the 1 st path is filtered by a filter screen of a fine oil filter 2 and enters a servo control loop by a servo fuel device; when the 1 st path of fuel is filtered by the fine oil filter 2 filter screen, impurities can be attached to the outer wall of the fine oil filter 2 filter screen, and when the 2 nd path of fuel passes through the central cavity of the shell 3, the impurities attached to the outer side of the fine oil filter 2 filter screen enter the combustion chamber through the oil outlet for combustion.
The invention has the following advantages:
1. the multistage filtration adopts a combined matching mode, is different from the traditional multistage separation filtration, and has more compact structure and material saving.
2. The fine oil filter 2 has a self-flushing function, saves equipment disassembly and cleaning time, and improves the reliability of the fuel oil filter and the working efficiency of products.
Claims (8)
1. An automatic flushing type integrated fuel filter combination device is characterized by comprising:
the oil filter comprises a coarse oil filter (1), a fine oil filter (2) and a shell (3), wherein the center of the shell (3) is a cavity, the right end of the cavity of the shell (3) is provided with an internal thread, the left end of the cavity of the shell (3) is provided with an oil path hole, and the side wall of the shell (3) is provided with an oil outlet and an oil inlet which are communicated with the cavity; the right side spiro union has coarse oil filter (1) in casing (3) cavity, and the grafting of the interior left side of casing (3) cavity has fine oil filter (2), and coarse oil filter (1) left end is equipped with the hole, and fine oil filter (2) right-hand member is pegged graft in the hole of coarse oil filter (1), and the filter screen of coarse oil filter (1) is just to the inlet port of casing (3), and the filter screen of fine oil filter (2) is towards the outlet port of casing (3).
2. An automatic flushing type integrated fuel filter combination device as set forth in claim 1, wherein the crude oil filter (1) and the right end of the shell (3) are sealed by a sealing ring.
3. An automatic flushing type integrated fuel filter combination device as set forth in claim 1, wherein the left end of the fine fuel filter (2) is sealed with the shell (3) through a sealing ring.
4. An automatic flushing type integrated fuel filter combination device as set forth in claim 1, wherein the part of the right end of the fine oil filter (2) inserted into the coarse oil filter (1) is sealed by a sealing ring.
5. An automatic flushing type integrated fuel filter combination device as set forth in claim 1, wherein the filter screen area of the fine oil filter (2) is larger than the filter screen area of the coarse oil filter (1).
6. An automatic flushing type integrated fuel filter combination device as set forth in claim 1, wherein the filter screen of the fine fuel filter (2) is welded on the fine fuel filter (2).
7. An automatic flushing type integrated fuel filter combination device as set forth in claim 1, wherein the filter screen of the coarse oil filter (1) is welded on the coarse oil filter (1).
8. An automatic flushing type integrated fuel filtering method is characterized by comprising the following steps:
when the product works normally, fuel oil from the gear pump passes through the oil inlet hole and is filtered by the coarse oil filter (1) and enters the cavity in the center of the shell (3), the fuel oil is divided into 2 paths, and the 1 st path is filtered by the filter screen of the fine oil filter (2) and enters the servo control loop by the servo fuel oil device; the 2 nd path of fuel oil and impurities attached to the outer side of the filter screen of the fine oil filter (2) enter the combustion chamber through the oil outlet for combustion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311265031.5A CN117339298A (en) | 2023-09-27 | 2023-09-27 | An automatic flushing integrated fuel filter combination device and filtering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311265031.5A CN117339298A (en) | 2023-09-27 | 2023-09-27 | An automatic flushing integrated fuel filter combination device and filtering method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117339298A true CN117339298A (en) | 2024-01-05 |
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ID=89368321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311265031.5A Pending CN117339298A (en) | 2023-09-27 | 2023-09-27 | An automatic flushing integrated fuel filter combination device and filtering method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117339298A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150360153A1 (en) * | 2014-06-17 | 2015-12-17 | Hamilton Sundstrand Corporation | Wash-flow filter assembly |
| CN112855397A (en) * | 2020-12-24 | 2021-05-28 | 新乡航空工业(集团)有限公司 | High-pressure fuel filter with self-washing function |
| CN214092568U (en) * | 2020-12-31 | 2021-08-31 | 无锡市晟瑞机械电子有限公司 | Multistage hydraulic filter |
| CN113546461A (en) * | 2021-08-30 | 2021-10-26 | 中国航发贵阳发动机设计研究所 | Screw thread fuel oil filter structure |
-
2023
- 2023-09-27 CN CN202311265031.5A patent/CN117339298A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150360153A1 (en) * | 2014-06-17 | 2015-12-17 | Hamilton Sundstrand Corporation | Wash-flow filter assembly |
| CN112855397A (en) * | 2020-12-24 | 2021-05-28 | 新乡航空工业(集团)有限公司 | High-pressure fuel filter with self-washing function |
| CN214092568U (en) * | 2020-12-31 | 2021-08-31 | 无锡市晟瑞机械电子有限公司 | Multistage hydraulic filter |
| CN113546461A (en) * | 2021-08-30 | 2021-10-26 | 中国航发贵阳发动机设计研究所 | Screw thread fuel oil filter structure |
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