CN108035916A - A kind of Aviation Fuel jet pump - Google Patents
A kind of Aviation Fuel jet pump Download PDFInfo
- Publication number
- CN108035916A CN108035916A CN201711096233.6A CN201711096233A CN108035916A CN 108035916 A CN108035916 A CN 108035916A CN 201711096233 A CN201711096233 A CN 201711096233A CN 108035916 A CN108035916 A CN 108035916A
- Authority
- CN
- China
- Prior art keywords
- oil
- fuel
- float valve
- jet pump
- bottom plate
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/48—Control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention belongs to Aviation Fuel system, discloses a kind of Aviation Fuel jet pump.The jet pump is made of nozzle (1), self-sealing Oil sucking device, pressure inlet (3).Nozzle connects high voltage power fuel oil, and high voltage power fuel oil is flowed out from nozzle at high speeds, will be pumped to housing by oil suction window in aircraft fuel tank, is mixed and is pressurized through pressure inlet, is delivered to fuel system pipeline；When fuel consumption to low oil level in fuel tanker, originally the automatic float valve exposure floated in fuel oil is in atmosphere, automatic float valve is slid to bottom plate end face by gravity at this time, and the ring packing cushion rubber on automatic float valve is pressed in bottom plate end face, prevents air from entering housing by oil suction window.
Description
Technical field
The invention belongs to Aviation Fuel system, is related to a kind of Aviation Fuel jet pump.
Background technology
Aviation Fuel jet pump with automatic float valve is mainly used in aircraft fuel system, as confession oil transfer pump to combustion
Carry out supplying oil after oil supercharging.Jet pump can suck air after fuel oil in fuel tank is defeated to the greatest extent, and air can be to engine into fuel oil
Normal operation bring bad influence, it is much more domestic at present to be combined using fluidic sensor with cutting ball valve to control for oil transportation jet stream
The stopping of pump, problem are increase costs, and control is slightly complicated.
The content of the invention
The purpose of the present invention：The Aviation Fuel jet pump sets automatic float valve, can meet army's civil aircraft fuel system
For the requirement of oil transportation, the use scope of Aviation Fuel jet pump is expanded.
Technical scheme：A kind of Aviation Fuel jet pump, it is characterised in that including nozzle 1, self-sealing suction
Oily device, pressure inlet 3；Self-sealing Oil sucking device is three-port structure, and nozzle 1 is by fastener and self-sealing Oil sucking device
Left end port compresses, and pressure inlet 3 is compressed by fastener and self-sealing Oil sucking device right end port, and nozzle 1 and pressure inlet 3
Keep concentric with self-sealing Oil sucking device.
The self-sealing Oil sucking device include housing 2, automatic float valve 4, ring packing cushion rubber 5, oil suction window 6,
Bottom plate 7, guiding rib 8, seam allowance 9；Ring packing cushion rubber 5 vulcanizes in the plane of automatic float valve 4, and automatic float valve 4 fills
Between 3 uniformly distributed guiding ribs 8 inside housing 2, for bayonet 9 on guiding rib 8, oil suction window 6 is opened in the centre of bottom plate 7, protects
Automatic float valve 4 is demonstrate,proved when no buoyancy situation is freely fallen, ring packing cushion rubber 5 and 7 automatic-sealed of bottom plate；Bottom plate 7 is by tight
Firmware is fixed with 2 lower face flange of housing.
The diameter of the aperture efficiency ring packing cushion rubber 5 of the oil suction window 6 is smaller.
The housing 2 is T-shaped three-port structure, and top is tubular structure, and lower part is bell-mouth structure of air, and top is hung down with lower part
Directly, guiding rib 8 is located on the bevel edge of bell-mouth structure of air.
Beneficial effects of the present invention：The Aviation Fuel jet pump for the automatic float valve of a kind of band that the present invention designs, when winged
When machine oil box level is normal, automatic float valve 4 floats, spacing by bayonet 9, ensures that fuel oil can flow through automatically from oil suction window 6
Float valve 4 enters housing 2.Nozzle 1 connects high voltage power fuel oil at this time, and high voltage power fuel oil is flowed out from nozzle at high speeds, is driven
Fuel oil in housing 2, mixes through pressure inlet 3 and is pressurized, be delivered to fuel system pipeline, while the fuel oil in aircraft fuel tank passes through
Oil suction window 6 is supplemented to housing 2；When fuel consumption to low oil level in fuel tanker, the automatic float that floats originally in fuel oil
Valve 4 exposes in atmosphere, and automatic float valve 4 is slid to bottom plate end face by gravity at this time, the annular on automatic float valve 4
Sealant rubber ring 5 is pressed in bottom plate end face, prevents air from entering product by oil suction window 6.
A kind of Aviation Fuel jet pump for the automatic float valve of band that the present invention designs, can remove for prevent jet pump into
The fluidic sensor and cutting ball valve for entering air and setting, and it is simple in structure, reliability is high.
Aviation Fuel jet pump with automatic float valve is plugged a gap, which expands the use scope of jet pump.
Brief description of the drawings：
Fig. 1 is schematic structural view of the invention.
Fig. 2 is fundamental diagram under oil condition of the present invention
Fig. 3 is the present invention without fundamental diagram under oil condition.
Wherein：1- nozzles, 2- housings, 3- pressure inlets, the automatic float valves of 4-, 5- ring packings cushion rubber, 6- oil suction windows, 7-
Bottom plate, 8- guiding ribs, 9- seam allowances
Embodiment
Below by embodiment, the present invention is described in further detail：
As shown in Figure 1, a kind of Aviation Fuel jet pump, including nozzle 1, self-sealing Oil sucking device, pressure inlet 3；From
The Oil sucking device of dynamic sealing is three-port structure, and nozzle 1 is compressed by fastener and self-sealing Oil sucking device left end port, supercharging
Pipe 3 is compressed by fastener and self-sealing Oil sucking device right end port, and nozzle 1 and pressure inlet 3 and self-sealing oil suction
Device keeps concentric.
Self-sealing Oil sucking device includes housing 2, automatic float valve 4, ring packing cushion rubber 5, oil suction window 6, bottom plate
7th, guiding rib 8, seam allowance 9；Housing 2 is T-shaped three-port structure, and top is tubular structure, and lower part is bell-mouth structure of air, top and lower part
Vertically, guiding rib 8 is located on the bevel edge of bell-mouth structure of air.Ring packing cushion rubber 5 vulcanizes in the plane of automatic float valve 4,
Between 3 uniformly distributed guiding ribs 8 of the automatic float valve 4 inside housing 2, on guiding rib 8, oil suction window 6 is opened in bayonet 9
The centre of bottom plate 7, the diameter of the aperture efficiency ring packing cushion rubber 5 of oil suction window 6 is smaller, ensures automatic float valve 4 in no buoyancy
When situation is freely fallen, ring packing cushion rubber 5 and 7 automatic-sealed of bottom plate；Bottom plate 7 is consolidated by fastener and 2 lower face flange of housing
It is fixed.
As shown in Fig. 2, arrow represents that fuel medium flows through route, and when aircraft fuel oil fuel level in tank is normal, automatic float-controlled valve
Door 4 floats, spacing by bayonet 9, ensures that fuel oil can flow through automatic float valve 4 from oil suction window 6 and enter housing 2.Nozzle 1 connects at this time
Logical high voltage power fuel oil, high voltage power fuel oil are flowed out from nozzle at high speeds, drive the fuel oil in housing 2, are mixed and are increased through pressure inlet 3
Pressure, is delivered to fuel system pipeline, while the fuel oil in aircraft fuel tank is supplemented to housing 2 by oil suction window 6.
As shown in figure 3, when fuel consumption to low oil level in fuel tanker, the automatic float-controlled valve that floats originally in fuel oil
In atmosphere, automatic float valve 4 slides to bottom plate end face the exposure of door 4 by gravity at this time, annular close on automatic float valve 4
Sealing rubber ring 5 is pressed in bottom plate end face, prevents air from entering product by oil suction window 6.
Claims (4)
1. a kind of Aviation Fuel jet pump, it is characterised in that including nozzle (1), self-sealing Oil sucking device, pressure inlet (3)；
Self-sealing Oil sucking device is three-port structure, and nozzle (1) is compressed by fastener and self-sealing Oil sucking device left end port,
Pressure inlet (3) is compressed by fastener and self-sealing Oil sucking device right end port, and nozzle (1) is with pressure inlet (3) and automatically
The Oil sucking device of sealing keeps concentric.
A kind of 2. Aviation Fuel jet pump according to claim 1, it is characterised in that the self-sealing Oil sucking device
Including housing (2), automatic float valve (4), ring packing cushion rubber (5), oil suction window (6), bottom plate (7), guiding rib (8), seam allowance
(9)；Ring packing cushion rubber (5) vulcanizes in the plane of automatic float valve (4), and automatic float valve (4) is in housing (2)
Between 3 uniformly distributed guiding ribs (8) in portion, for bayonet (9) on guiding rib (8), oil suction window (6) is opened in the centre of bottom plate (7), protects
Automatic float valve (4) is demonstrate,proved when no buoyancy situation is freely fallen, ring packing cushion rubber (5) and bottom plate (7) automatic-sealed；Bottom plate
(7) fixed by fastener and housing (2) lower face flange.
A kind of 3. Aviation Fuel jet pump according to claim 2, it is characterised in that the aperture efficiency of the oil suction window (6)
The diameter of ring packing cushion rubber (5) is smaller.
4. a kind of Aviation Fuel jet pump according to claim 1-3 any one, it is characterised in that the housing (2) is T
Type three-port structure, top are tubular structure, and lower part is bell-mouth structure of air, top and lower vertical, and guiding rib (8) is located at horn mouth
On the bevel edge of structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096233.6A CN108035916A (en) | 2017-11-08 | 2017-11-08 | A kind of Aviation Fuel jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096233.6A CN108035916A (en) | 2017-11-08 | 2017-11-08 | A kind of Aviation Fuel jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108035916A true CN108035916A (en) | 2018-05-15 |
Family
ID=62093327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711096233.6A Pending CN108035916A (en) | 2017-11-08 | 2017-11-08 | A kind of Aviation Fuel jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108035916A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3810714A (en) * | 1971-10-28 | 1974-05-14 | Plessey Handel Investment Ag | Disposal of liquid spillage and the like |
| DE2346488A1 (en) * | 1973-09-12 | 1975-03-20 | Tecalemit Gmbh Deutsche | Car oil dispenser with float control - has air operated jet pump leading to float controlled slide chamber |
| GB1410973A (en) * | 1972-01-19 | 1975-10-22 | Lucas Industries Ltd | Fuel drain system for a combustion engine |
| GB1458420A (en) * | 1973-06-09 | 1976-12-15 | Dresser Europe Sa | Device for drawing oil from fuel burning engines in particular motor vehicle engines |
| EP0597175A1 (en) * | 1992-11-11 | 1994-05-18 | VDO Adolf Schindling AG | Jet pump for feeding fuel |
| US20030231964A1 (en) * | 2002-06-14 | 2003-12-18 | Ching-Tsung Chang | Oil suction pump |
| EP2977846A1 (en) * | 2014-07-24 | 2016-01-27 | Hamilton Sundstrand Corporation | Ecology fuel return systems |
| CN105508310A (en) * | 2015-12-08 | 2016-04-20 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Aviation fuel jet pump capable of sucking fuel from double ends |
-
2017
- 2017-11-08 CN CN201711096233.6A patent/CN108035916A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3810714A (en) * | 1971-10-28 | 1974-05-14 | Plessey Handel Investment Ag | Disposal of liquid spillage and the like |
| GB1410973A (en) * | 1972-01-19 | 1975-10-22 | Lucas Industries Ltd | Fuel drain system for a combustion engine |
| GB1458420A (en) * | 1973-06-09 | 1976-12-15 | Dresser Europe Sa | Device for drawing oil from fuel burning engines in particular motor vehicle engines |
| DE2346488A1 (en) * | 1973-09-12 | 1975-03-20 | Tecalemit Gmbh Deutsche | Car oil dispenser with float control - has air operated jet pump leading to float controlled slide chamber |
| EP0597175A1 (en) * | 1992-11-11 | 1994-05-18 | VDO Adolf Schindling AG | Jet pump for feeding fuel |
| US20030231964A1 (en) * | 2002-06-14 | 2003-12-18 | Ching-Tsung Chang | Oil suction pump |
| EP2977846A1 (en) * | 2014-07-24 | 2016-01-27 | Hamilton Sundstrand Corporation | Ecology fuel return systems |
| CN105508310A (en) * | 2015-12-08 | 2016-04-20 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Aviation fuel jet pump capable of sucking fuel from double ends |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180515 |