CN104986343A - Oil supplying and conveying system in oil tank - Google Patents
Oil supplying and conveying system in oil tank Download PDFInfo
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- CN104986343A CN104986343A CN201510350391.4A CN201510350391A CN104986343A CN 104986343 A CN104986343 A CN 104986343A CN 201510350391 A CN201510350391 A CN 201510350391A CN 104986343 A CN104986343 A CN 104986343A
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- fuel
- oil
- tank
- outlet line
- feed pump
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Abstract
The invention relates to the field of aircraft fuel system design, and in particular to an oil supplying and conveying system in an oil tank. In the oil supplying and conveying system in the oil tank, the oil outlet port of an oil supply pump in an oil sump tank is divided into a first oil outlet pipeline and a second oil outlet pipeline. In addition, movable flow inlets of all jet pumps are connected to the second oil outlet pipeline, and therefore the oil supply pump can serve as an ejecting movable flow source of the jet pumps; and the jet pumps are controlled to pump fuel in an oil conveying tank into the oil sump tank, and then the fuel is then conveyed to an engine through the first oil outlet pipeline of the oil supply pump. The oil supplying and conveying system in the oil tank is simple in structure and high in stability, and the overall mass of the oil tank can be reduced.
Description
Technical field
The present invention relates to aircraft fuel system design field, be specifically related to fuel delivery system in a kind of fuel tank.
Background technology
In current aircraft fuel tank fuel transfer system, the fuel tank of each driving engine is usually by collector tank and multiple oil transportation casees of being set up in parallel in collector tank side; During fuel feeding, by fuel transfer pump, fuel oil is transferred to inner side oil transportation case by outside oil transportation case to be also finally transferred in collector tank, collector tank again by oil feed pump by fuel delivery to driving engine, often there is the problems such as complex structure, weight cost be large, affect oil transportation stability and aircraft safety performance.
Summary of the invention
The object of this invention is to provide fuel delivery system in the simple fuel tank of a kind of structure.
Technical scheme of the present invention is:
Fuel delivery system in a kind of fuel tank, the multiple oil transportation casees comprising collector tank and be set up in parallel in described collector tank side, comprising:
Oil feed pump, is arranged in described collector tank, and the fuel-displaced port of described oil feed pump splits into the first outlet line and the second outlet line, and described oil feed pump is connected with driving engine by described first outlet line;
Jet pump, quantity is identical with described oil transportation case, be separately positioned in each described oil transportation case, and the dynamic inflow entrance of each described jet pump is all connected to the second outlet line of described oil feed pump, the fuel-displaced port of each described jet pump is all by pipeline communication extremely described collector tank.
Alternatively, described oil feed pump comprises two, and the fuel-displaced port of two described oil feed pumps first converges to a total outlet line, then is split into described first outlet line and described second outlet line by described total outlet line.
Alternatively, fuel feeding shutoff valve is provided with between described first outlet line of described oil feed pump and described driving engine.
Alternatively, between the outermost described oil transportation case of described collector tank and adjacent described oil transportation case, be provided with lightening hole, fuel oil is by described lightening hole free-flowing between two described oil transportation casees;
Except outermost described oil transportation case, be provided with check valve between two described oil transportation casees of all the other arbitrary neighborhoods, wherein, fuel oil is flowed to described collector tank direction by described outermost.
Alternatively, the fuel-displaced port of described oil feed pump is provided with check valve.
Alternatively, described oil transportation case comprises three.
Beneficial effect of the present invention:
In fuel tank of the present invention in fuel delivery system, in collector tank, the fuel-displaced port of oil feed pump splits into the first outlet line and the second outlet line, in addition, the dynamic inflow entrance of all jet pumps is all connected to the second outlet line, oil feed pump is made to move stream source as the injection of jet pump, fuel oil in oil transportation case pumps in collector tank by control jet pump, again by the first outlet line of oil feed pump by fuel delivery to driving engine, make that fuel delivery system structure in fuel tank of the present invention is simple, stability is strong, and fuel tank oeverall quality can be reduced.
Accompanying drawing explanation
Fig. 1 is the structure diagram of fuel delivery system in fuel tank of the present invention.
Detailed description of the invention
Here will be described exemplary embodiment in detail, its sample table shows in the accompanying drawings.When description below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawing represents same or analogous key element.
As shown in Figure 1, fuel delivery system in fuel tank provided by the invention, for being aero-engine (can be one or more) fuel feeding.In current fuel tank, fuel delivery system can comprise collector tank 1 and be set up in parallel multiple oil transportation casees 2 of (set-up mode with reference to shown in Fig. 1) in collector tank 1 side.In fuel tank of the present invention, fuel delivery system can also comprise the fuel feeding shutoff valve 31 of oil feed pump 11, jet pump 21 and band motor drive mechanism.
Oil feed pump 11 can select known multiple oil feed pump, and it comprises oil-feed port and fuel-displaced port; Oil feed pump 11 is arranged in collector tank 1, and its fuel-displaced port is split into the first outlet line and the second outlet line, specifically can be shunted by T-pipe joint.Wherein, oil feed pump 11 is connected with driving engine 3 by the first outlet line.In order to improve safety performance, fuel feeding shutoff valve 31 can also be set between the first outlet line and driving engine 3, for controlling the break-make of this oil circuit.In addition, the fuel-displaced port of oil feed pump 11 is provided with check valve 12, system stability is provided.
Jet pump 21 can select known multiple jet pump, and it can comprise dynamic inflow entrance, oil-feed port and fuel-displaced port, and its jet current principle is current mature technology, repeats no more.Jet pump 21 quantity is identical with oil transportation case 2, is separately positioned in each oil transportation case 2; And the dynamic inflow entrance of each jet pump 21 is all connected to the second outlet line of oil feed pump 11, the fuel-displaced port of each jet pump 21 all by pipeline communication to collector tank 1, oil feed pump 11 moves stream source as the injection of jet pump 21, the fuel oil pumped from the second outlet line by oil feed pump 11 makes jet pump 21 work, and the fuel oil in oil transportation case 2 pumps into collector tank 1 by jet pump 21.
Oil feed pump 11 is connected with above-mentioned fuel feeding shutoff valve 31, and fuel feeding shutoff valve 31 controls break-make by described motor drive mechanism.
In fuel tank of the present invention in fuel delivery system, in collector tank 1, oil feed pump 11 moves stream source as the injection of jet pump 21, fuel oil in oil transportation case 2 pumps in collector tank 1 by control jet pump 21, again by the first outlet line of oil feed pump 11 by fuel delivery to driving engine 3, make that fuel delivery system structure in fuel tank of the present invention is simple, stability is strong, and fuel tank oeverall quality can be reduced.
In fuel tank of the present invention in fuel delivery system, preferably confession oil require collector tank 1 and three oil transportation casees 2 are carried out to a driving engine, can structure arrangement be made more reasonable on the basis meeting delivery quality.
Particularly, between collector tank 1 outermost oil transportation case 2 and adjacent oil transportation case 2, be provided with lightening hole 22, fuel oil is by lightening hole 22 free-flowing between two oil transportation casees 2.Further, except outermost oil transportation case 2, be provided with check valve 23 between two oil transportation casees 2 of all the other arbitrary neighborhoods, wherein, fuel oil is flowed to collector tank 1 direction by outermost.
Lightening hole 22 and check valve 23 are known structure, repeat no more, the present invention is by arranging lightening hole 22 and check valve 23, can to improve further between collector tank 1 and several oil transportation case 2 and fuel flow communication speed between oil transportation case 2 and oil transportation case 2, only may ensure oil mass balance in multiple fuel tank, guarantee stability and the safety of flight.
Further, in fuel tank of the present invention in fuel delivery system, in order to ensure supply capability, to improve the safety performance of system further, be preferably collector tank 1 inside and comprise two oil feed pumps 11.The fuel-displaced port of two oil feed pumps 11 first converges to a total outlet line, then is split into described first outlet line and described second outlet line by total outlet line.In addition, even if two oil feed pump lost efficacy simultaneously, the fuel oil of oil transportation case 2 still entered collector tank 1 by check valve 23 and prevented from flowing backwards, and still can ensure that collector tank 1 is in relatively high oil level, still can be driving engine 3 fuel feeding by suction fuel feeding, guarantee flight safety.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (6)
1. a fuel delivery system in fuel tank, the multiple oil transportation casees (2) comprising collector tank (1) and be set up in parallel in described collector tank (1) side, is characterized in that, comprising:
Oil feed pump (11), be arranged in described collector tank (1), the fuel-displaced port of described oil feed pump (11) splits into the first outlet line and the second outlet line, and described oil feed pump (11) is connected with driving engine (3) by described first outlet line;
Jet pump (21), quantity is identical with described oil transportation case (2), be separately positioned in each described oil transportation case (2), and the dynamic inflow entrance of each described jet pump (21) is all connected to the second outlet line of described oil feed pump (11), the fuel-displaced port of each described jet pump (21) is all by pipeline communication extremely described collector tank (1).
2. fuel delivery system in fuel tank according to claim 1, it is characterized in that, described oil feed pump (11) comprises two, the fuel-displaced port of two described oil feed pumps (11) first converges to a total outlet line, then is split into described first outlet line and described second outlet line by described total outlet line.
3. fuel delivery system in fuel tank according to claim 1 and 2, is characterized in that, is provided with fuel feeding shutoff valve (31) between described first outlet line of described oil feed pump (11) and described driving engine (3).
4. fuel delivery system in fuel tank according to claim 3, it is characterized in that, be positioned between the outermost described oil transportation case (2) of described collector tank (1) and adjacent described oil transportation case (2) and be provided with lightening hole (22), fuel oil is by described lightening hole (22) free-flowing between two described oil transportation casees (2);
Except outermost described oil transportation case (2), check valve (23) is provided with between two described oil transportation casees (2) of all the other arbitrary neighborhoods, wherein, fuel oil is flowed to described collector tank (1) direction by described outermost.
5. fuel delivery system in fuel tank according to claim 4, is characterized in that, the fuel-displaced port of described oil feed pump (11) is provided with check valve (12).
6. fuel delivery system in fuel tank according to claim 4, is characterized in that, described oil transportation case (2) comprises three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510350391.4A CN104986343A (en) | 2015-06-23 | 2015-06-23 | Oil supplying and conveying system in oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510350391.4A CN104986343A (en) | 2015-06-23 | 2015-06-23 | Oil supplying and conveying system in oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104986343A true CN104986343A (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510350391.4A Pending CN104986343A (en) | 2015-06-23 | 2015-06-23 | Oil supplying and conveying system in oil tank |
Country Status (1)
| Country | Link |
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| CN (1) | CN104986343A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111907641A (en) * | 2020-02-25 | 2020-11-10 | 青岛海洋地质研究所 | Method and device for controlling oil tank of multi-hull ship and multi-hull ship |
| CN113799972A (en) * | 2021-10-26 | 2021-12-17 | 中国商用飞机有限责任公司 | System and method for correcting fuel quantity imbalance of left wing and right wing of airplane |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3901025A (en) * | 1974-02-01 | 1975-08-26 | Piper Aircraft Corp | Aircraft engine fuel system |
| US4913380A (en) * | 1988-10-13 | 1990-04-03 | Omac, Inc. | Fuel system for Canard aircraft |
| CN102678338A (en) * | 2012-06-08 | 2012-09-19 | 中国航空工业集团公司西安飞机设计研究所 | Oil supply pressure regulating system for aircraft engine and regulating method thereof |
| CN104648679A (en) * | 2013-11-22 | 2015-05-27 | 中国航空工业集团公司西安飞机设计研究所 | Oil sump tank layout structure of aviette |
-
2015
- 2015-06-23 CN CN201510350391.4A patent/CN104986343A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3901025A (en) * | 1974-02-01 | 1975-08-26 | Piper Aircraft Corp | Aircraft engine fuel system |
| US4913380A (en) * | 1988-10-13 | 1990-04-03 | Omac, Inc. | Fuel system for Canard aircraft |
| CN102678338A (en) * | 2012-06-08 | 2012-09-19 | 中国航空工业集团公司西安飞机设计研究所 | Oil supply pressure regulating system for aircraft engine and regulating method thereof |
| CN104648679A (en) * | 2013-11-22 | 2015-05-27 | 中国航空工业集团公司西安飞机设计研究所 | Oil sump tank layout structure of aviette |
Non-Patent Citations (1)
| Title |
|---|
| 唐毅等: "基于全球鹰无人机的机翼油箱输油方案研究", 《西北工业大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111907641A (en) * | 2020-02-25 | 2020-11-10 | 青岛海洋地质研究所 | Method and device for controlling oil tank of multi-hull ship and multi-hull ship |
| CN113799972A (en) * | 2021-10-26 | 2021-12-17 | 中国商用飞机有限责任公司 | System and method for correcting fuel quantity imbalance of left wing and right wing of airplane |
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Application publication date: 20151021 |
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| RJ01 | Rejection of invention patent application after publication |