CN109466780A - Hung outside helicopter fuel tank and helicopter - Google Patents
Hung outside helicopter fuel tank and helicopter Download PDFInfo
- Publication number
- CN109466780A CN109466780A CN201811639672.1A CN201811639672A CN109466780A CN 109466780 A CN109466780 A CN 109466780A CN 201811639672 A CN201811639672 A CN 201811639672A CN 109466780 A CN109466780 A CN 109466780A
- Authority
- CN
- China
- Prior art keywords
- helicopter
- oil
- oil tank
- tank body
- fuel tank
- 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.)
- Withdrawn
Links
- 239000002828 fuel tank Substances 0.000 title claims abstract description 48
- 239000000446 fuel Substances 0.000 claims abstract description 30
- 230000037237 body shape Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 11
- 229920000271 Kevlar® Polymers 0.000 claims description 6
- 239000004761 kevlar Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 94
- 238000010586 diagram Methods 0.000 description 10
- 239000000295 fuel oil Substances 0.000 description 7
- 239000012530 fluid Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000346 nonvolatile oil Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
- B64D37/02—Tanks
- B64D37/06—Constructional adaptations thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Abstract
The invention discloses a kind of hung outside helicopter fuel tank and helicopter, the hung outside helicopter fuel tank includes oil tank body, and there is the oil tank body the complex-curved shape of streamline and body shape to seamlessly transit, and ensure that helicopter has smooth aerodynamic configuration；It is provided with pouring orifice at the top of the oil tank body, bottom is provided with the oil outlet connecting with built-in oil-tank.Hung outside helicopter fuel tank provided by the invention, the integral layout of body can be cooperated, make full use of body space, expansion capacity is carried out to conventional fuel tank, improve the fuel load of oil tank system, increase cruise duration, meanwhile, it reduces because weight caused by adding external fuel cell increases the influence increased with air drag to helicopter.
Description
Technical field
The present invention relates to aviation aircraft and technical field of mechanical design, and in particular to a kind of hung outside helicopter fuel tank and straight
The machine of liter.
Background technique
Helicopter is widely used in the fields such as environment survey, scientific experiment, pesticide spraying, mountain forest fire-fighting, at present helicopter
Substantially power is provided using engine, cruise duration is to increase cruise duration as one of the important indicator for measuring machine performance
One of mode is to add oil tank body, carries out expansion type dilatation to the fuel tank of helicopter, but existing external fuel cell is usually only
It is to often result in the problems such as being connect with the fuel tank of helicopter merely, do not consider aerodynamic configuration and space utilization rate and increase fuel tank weight
Amount and volume increase energy loss in increase continuation of the journey.
Therefore, in order to solve the above problem, a kind of hung outside helicopter fuel tank is needed, the integral layout of body can be cooperated, filled
Divide and utilize body space, expansion capacity is carried out to conventional fuel tank, improve the fuel load of oil tank system, increases cruise duration, meanwhile,
It reduces because weight caused by adding external fuel cell increases the influence increased with air drag to helicopter.
Summary of the invention
In view of this, providing hung outside helicopter fuel tank, Neng Goupei the purpose of the present invention is overcoming defect in the prior art
The integral layout for closing body, makes full use of body space, carries out expansion capacity to conventional fuel tank, improves the load oil of oil tank system
Amount increases cruise duration, meanwhile, it reduces because weight caused by adding external fuel cell increases and air drag increases to helicopter
It influences.
Hung outside helicopter fuel tank of the invention, including oil tank body, the oil tank body have the complex-curved shape of streamline
It is seamlessly transitted with body shape, ensure that helicopter has smooth aerodynamic configuration；Oiling is provided at the top of the oil tank body
Mouthful, bottom is provided with the oil outlet connecting with built-in oil-tank.External fuel cell is divided into nearside tank and two kinds of offside tank, is symmetricly set on
Body two sides.This design can cooperate the integral layout of body, make full use of body space, and oil tank body and body shape are flat
It slips over and crosses and may not necessarily be equivalent to external fuel cell and covering in order to which aerodynamic configuration increases covering outside external fuel cell and close two and be
One, the weight of conventional external fuel cell external covering part is alleviated, expansion capacity is carried out to conventional fuel tank, improves the load of oil tank system
Oil mass increases cruise duration, simultaneously as reducing because weight caused by adding external fuel cell increases and air drag increases to straight
The influence of the machine of liter.
Further, the oil tank body is provided with close to body side between the holding enough of engine protruding parts
The resigning recessed portion of gap, can make full use of space, ensure that ultra-large volume under the premise of guaranteeing aerodynamic configuration.
Further, the oil tank body exterior bottom is provided with bottom holding recess part, and outside top is provided with top
Holding recess part, for being fixed with body.
Further, the top holding recess part passes through the conformal fitting limitation fuel tank sheet of the holding block being fixed on the machine body
Body up and out, be moved forward or rearward.
Further, the bottom holding recess part passes through the lower conformal fitting of outside limited block that is fixed on body short limb
Limitation oil tank body downwards, outward, be moved forward or rearward.
Further, guaranteed fuel-displaced smoothly oil outlet recessed portion, hydraulic fluid port recessed portion is arranged in the oil tank body bottom
Shape is provided similar to the inclined surface of funnel, even if there is tilting action during aircraft, fuel oil will not quickly focus on fuel tank
Body portion or rear portion, fuel oil movement have a buffering；And when oil tank body tilts identical angle, setting oil outlet is recessed
The center of concave portion is lower relative to the minimum point height of centre distance oil tank body for being not provided with oil outlet recessed portion, therefore is provided
Hydraulic fluid port recessed portion can guarantee that oil tank body is fuel-displaced smooth, sufficient when helicopter is in flight.
Further, the oil tank body uses Kevlar material, and the pouring orifice and oil outlet difference co-curing are triumphant
Husband draws on material, and this material oil resistant and intensity are high, and when support frame is under attack, adequately protect aircraft, the pouring orifice and
Oil outlet distinguishes co-curing on Kevlar material, and structural strength high sealing performance is good, is hardly damaged and can prevent oil leak.
The present invention also provides a kind of helicopter, hung outside helicopter fuel tank is installed on helicopter body.
The beneficial effects of the present invention are: hung outside helicopter fuel tank disclosed by the invention and helicopter, can cooperate body
Integral layout makes full use of body space, carries out expansion capacity to conventional fuel tank, improves the fuel load of oil tank system, increases continuous
ETS estimated time of sailing, meanwhile, it reduces because weight caused by adding external fuel cell increases the influence increased with air drag to helicopter.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is nearside tank 1a structural schematic diagram of the invention；
Fig. 2 is offside tank 1b structural schematic diagram of the invention；
Fig. 3 is oil tank system structure structural schematic diagram of the invention；
Fig. 4 is oil tank system front view of the invention；
Fig. 5 is oil tank system side view of the invention；
Fig. 6 is fuel tank assembly structural schematic diagram of the invention；
Fig. 7 is built-in oil-tank structural schematic diagram of the invention.
Specific embodiment
Fig. 1 is nearside tank 1a structural schematic diagram of the invention, and Fig. 2 is offside tank 1b structural schematic diagram of the invention, and Fig. 3 is
Oil tank system structure structural schematic diagram of the invention, Fig. 4 are oil tank system front view of the invention, and Fig. 5 is fuel tank of the invention
System side view, Fig. 6 are fuel tank assembly structural schematic diagram of the invention, and Fig. 7 is built-in oil-tank structural schematic diagram of the invention.Such as
Shown in figure, hung outside helicopter fuel tank in the present embodiment, including oil tank body 1, the oil tank body 1 have streamline complex-curved
Shape and 4 shape of body seamlessly transit, and ensure that helicopter has smooth aerodynamic configuration；It is arranged at the top of the oil tank body 1
There is pouring orifice 11, bottom is provided with the oil outlet 12 connecting with built-in oil-tank.External fuel cell is divided into nearside tank 1a and offside tank 1b
Two kinds, it is symmetricly set on 4 two sides of body.This design can cooperate the integral layout of body, make full use of body space, fuel tank
Ontology 1 and the smooth transition of 4 shape of body may not necessarily increase covering for aerodynamic configuration outside external fuel cell, be equivalent to plug-in
Fuel tank is combined into one with covering, alleviates the weight of conventional external fuel cell external covering part, carries out expansion appearance to conventional fuel tank
Amount improves the fuel load of oil tank system, increases cruise duration, simultaneously as reducing because weight caused by adding external fuel cell increases
Sum it up influence of the air drag increase to helicopter.
Helicopter oil tank system includes fuel tank assembly and short limb assembly 3, and the fuel tank assembly includes oil tank body 1 and built-in
Fuel tank 2, the inner cavity of the oil tank body 1 and the inner cavity of built-in oil-tank 2 communicate, and the short limb assembly 3 is fixed on body 4 and energy
Support is provided for oil tank body 1, the fuel tank assembly is fixed on body 4.By adding oil tank body 1 outside built-in oil-tank 2,
Using the limited space of body 4, the fuel load of oil tank system is significantly improved, cruise duration is increased.Oil tank body capacity is
25L increases 5 hours with cruise duration after filling it up with fuel oil there are two the helicopter of oil tank body 1.
In the present embodiment, the oil outlet 12 is connected with the connected pipes 13 for communicating with built-in oil-tank 2.The fuel tank
Ontology 1 is provided with the resigning recessed portion 14 for keeping enough gaps with engine protrusion point, while energy close to 4 side of body
Space is made full use of, ensure that ultra-large volume under the premise of guaranteeing aerodynamic configuration.The oil outlet 12 is arranged in oil tank body 1
Bottom centre, 1 shell of oil tank body around oil outlet 12 are provided with for guaranteeing fuel-displaced smoothly oil outlet recessed portion 15, out
Hydraulic fluid port recessed portion 15 provides shape similar to the inclined surface of funnel, even if there is tilting action during aircraft, fuel oil will not be fast
Speed focuses on 1 front of oil tank body or rear portion, and fuel oil movement has a buffering；And oil tank body 1 tilts identical angle
When, the center that oil outlet recessed portion 15 is arranged is minimum relative to the centre distance oil tank body 1 for being not provided with oil outlet recessed portion 15
Point height is lower.Therefore setting oil outlet recessed portion 15 can guarantee oil tank body 1 when helicopter is in flight it is fuel-displaced it is smooth, fill
Foot.
In the present embodiment, it is provided in the connected pipes 13 for preventing the fuel oil in built-in oil-tank 2 from flowing to fuel tank sheet
The check valve of body 1.The oil tank body 1 uses Kevlar material, this material oil resistant and intensity height, under attack in support frame
When, adequately protect aircraft；The pouring orifice 11 and oil outlet 12 distinguish co-curing on Kevlar material, structural strength high sealing
Performance is good, is hardly damaged and can prevent oil leak.Additionally due to the presence of check valve, nearside tank 1a and offside tank 1b are non-interference,
Built-in oil-tank 2 will not be influenced by two oil tank bodies 1, and when oil tank body 1 damages, fuel oil will not in built-in oil-tank 2
Flowing backward to oil tank body 1 causes to reveal, and Fuel Remained can allow helicopter to continue flight to which safety is returned in built-in oil-tank 2
Boat.
In the present embodiment, 1 exterior bottom of oil tank body is provided with bottom holding recess part 16, and outside top is provided with
Top holding recess part 17；The top holding recess part 17 is limited by the conformal fitting of holding block 41 being fixed on body 4
Direction is mobile up and out, forward or backward for oil tank body 1.It is described in this specification to refer to upwards by 4 bottom of helicopter body
To the direction at 4 top of body, refers to by the direction at the top of helicopter body 4 to 4 bottom of body downwards, refer to outward by oil tank body
1 is directed away from the direction of body 4, inwardly refers to by oil tank body 1 towards the direction close to body 4, refers to forward from 4 tail of body
Portion refers to the direction from 4 head of body to 4 tail portion of body to the direction on 4 head of body backward；Above outside refers to fuel tank sheet
Body 1 is far from 4 side of body, and bottom holding recess part 16 is located on incline of 1 bottom of oil tank body far from body 4, and top is fixed
Recessed portion 17 is located at 1 top of oil tank body far from the incline of body 4.41 one end of block is held tightly to be detachably mounted to hold block branch tightly
On frame 42, one end with top holding recess part 17 is conformal is bonded, described 41 one end of holding block bracket is fixed on body 4, one end
It is fixed on and holds tightly on block 41.Since top holding recess part 17 is on top incline of the oil tank body 1 far from 4 one side of body, because
This holds the corresponding face of holding recess part 17 at the top of the conformal fitting in front and back two sides of block 41 tightly, thus will limit oil tank body 1 to
It is preceding or move backward, it holds block 41 tightly and will limit oil tank body 1 close to the end face of body 4 fitting top holding recess part 17 and be moved out
Dynamic, the contact surface of holding 41 bottom of block and oil tank body 1 will limit oil tank body 1 and move up.
Since oil tank body 1 has the complex-curved shape of streamline, inside is provided with resigning recessed portion 14, and outside is provided with bottom
Portion's holding recess part 16 and top holding recess part 17, bottom are provided with oil outlet recessed portion 15, cause 1 shape of oil tank body recessed
Convex injustice reduces internal oil shaking, it is no longer necessary to which the anti-plate that swings is prevented swinging plate for weakening oil liquid shaking, therefore can cancel
Setting, has saved material, has alleviated fuel tank weight.
In the present embodiment, the short limb assembly 3 includes that short limb main body 31 connects framework 32 with short limb；The short limb connects frame
32 one end of body is fixed on body 4, and one end is connected in short limb main body 31.
In the present embodiment, be arranged in the short limb connection framework 32 restricted oil tank body 1 downwards, outward, forward or to
The inner side limiting-position block 34 that the lower outside limited block 33 and limitation oil tank body 1 moved afterwards is downward, moves inward.Term position is explained
It is described above.
In the present embodiment, the lower outside limited block 33 with the bottom holding recess part 16 of oil tank body 1 is conformal is bonded, institute
State the bottom wall of inner side limiting-position block 34 and oil tank body 1 with corner shape is conformal between inner wall is bonded.Bottom holding recess part 16
In on incline of 1 bottom of oil tank body far from body 4, the front and back two sides limitation oil tank body 1 of lower outside limited block 33 forward or
It moves backward, lower outside limited block 33 limits oil tank body 1 close to body 4 on one side and is displaced outwardly, 33 top of lower outside limited block
It is moved down with 1 contact surface of oil tank body limitation oil tank body 1；Inner side limiting-position block 34 is bonded with 1 contact surface corner of oil tank body
Place is a curved surface, and limitation oil tank body 1 is downward, moves inward.
In the present embodiment, the built-in oil-tank 2 includes fuel tank main body, the external fuel cell connector positioned at fuel tank main body bottom
21, the oil filler 22 at the top of fuel tank main body, the positioning device for fixed oil tank main body, the use positioned at fuel tank main body bottom
In the fuel pump 26 and fuel feed pump 27 of external fuel feeding；The external fuel cell connector 21 can be connected with external fuel cell or can use
Plug blocks.21 height of external fuel cell connector is not needed using gravity feed oil in plug-in oil lower than external fuel cell lowest point
Fuel pump is set in case.
Helicopter in the present embodiment is equipped with above-mentioned hung outside helicopter fuel tank on helicopter body.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (8)
1. a kind of hung outside helicopter fuel tank, it is characterised in that: including oil tank body, the oil tank body has streamline complex-curved
Shape and body shape seamlessly transit, and ensure that helicopter has smooth aerodynamic configuration；It is provided at the top of the oil tank body
Pouring orifice, bottom are provided with the oil outlet connecting with built-in oil-tank.
2. hung outside helicopter fuel tank according to claim 1, it is characterised in that: the oil tank body is set close to body side
It is equipped with the resigning recessed portion for keeping enough gaps with engine protruding parts.
3. hung outside helicopter fuel tank according to claim 1, it is characterised in that: the oil tank body exterior bottom is provided with
Bottom holding recess part, outside top are provided with top holding recess part.
4. hung outside helicopter fuel tank according to claim 1, it is characterised in that: the top holding recess part passes through fixation
The conformal fitting limitation oil tank body of holding block on body up and out, be moved forward or rearward.
5. hung outside helicopter fuel tank according to claim 1, it is characterised in that: the bottom holding recess part passes through fixation
The conformal fitting limitation oil tank body of lower outside limited block on body short limb downwards, outward, be moved forward or rearward.
6. hung outside helicopter fuel tank according to claim 4, it is characterised in that: the oil tank body bottom setting is guaranteed
Fuel-displaced smoothly oil outlet recessed portion.
7. hung outside helicopter fuel tank according to claim 6, it is characterised in that: the oil tank body uses Kevlar material
Material, the pouring orifice and oil outlet difference co-curing are on Kevlar material.
8. a kind of helicopter, it is characterised in that: installation is gone straight up to just like of any of claims 1-7 on helicopter body
Machine external fuel cell.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018113150325 | 2018-11-06 | ||
| CN201811315032 | 2018-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109466780A true CN109466780A (en) | 2019-03-15 |
Family
ID=65678035
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811639672.1A Withdrawn CN109466780A (en) | 2018-11-06 | 2018-12-29 | Hung outside helicopter fuel tank and helicopter |
| CN201822254404.XU Active CN209455012U (en) | 2018-11-06 | 2018-12-29 | Helicopter oil supply system flash chamber and helicopter |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822254404.XU Active CN209455012U (en) | 2018-11-06 | 2018-12-29 | Helicopter oil supply system flash chamber and helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109466780A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753216A (en) * | 2021-09-19 | 2021-12-07 | 中国航空工业集团公司西安飞机设计研究所 | A Shipborne UAV Platform Configuration Based on Mission Modularity |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466780A (en) * | 2018-11-06 | 2019-03-15 | 珠海隆华直升机科技有限公司 | Hung outside helicopter fuel tank and helicopter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4860972A (en) * | 1988-02-09 | 1989-08-29 | Era Aviation, Inc. | Auxiliary fuel tanks for aircraft |
| RU2125953C1 (en) * | 1996-04-26 | 1999-02-10 | Бундаков Виктор Иванович | Method and device for transfer of fuel reserve tank on helicopter |
| US6241185B1 (en) * | 1999-02-16 | 2001-06-05 | Paul H. Sanderson | Plank-based external aircraft armament/cargo carrying apparatus with pivotable outer end portions foldable into the aircraft cabin area |
| CN203958624U (en) * | 2014-07-09 | 2014-11-26 | 湖北易瓦特科技有限公司 | Depopulated helicopter and fuel tank |
| CN209455012U (en) * | 2018-11-06 | 2019-10-01 | 珠海隆华直升机科技有限公司 | Helicopter oil supply system flash chamber and helicopter |
-
2018
- 2018-12-29 CN CN201811639672.1A patent/CN109466780A/en not_active Withdrawn
- 2018-12-29 CN CN201822254404.XU patent/CN209455012U/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4860972A (en) * | 1988-02-09 | 1989-08-29 | Era Aviation, Inc. | Auxiliary fuel tanks for aircraft |
| RU2125953C1 (en) * | 1996-04-26 | 1999-02-10 | Бундаков Виктор Иванович | Method and device for transfer of fuel reserve tank on helicopter |
| US6241185B1 (en) * | 1999-02-16 | 2001-06-05 | Paul H. Sanderson | Plank-based external aircraft armament/cargo carrying apparatus with pivotable outer end portions foldable into the aircraft cabin area |
| CN203958624U (en) * | 2014-07-09 | 2014-11-26 | 湖北易瓦特科技有限公司 | Depopulated helicopter and fuel tank |
| CN209455012U (en) * | 2018-11-06 | 2019-10-01 | 珠海隆华直升机科技有限公司 | Helicopter oil supply system flash chamber and helicopter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753216A (en) * | 2021-09-19 | 2021-12-07 | 中国航空工业集团公司西安飞机设计研究所 | A Shipborne UAV Platform Configuration Based on Mission Modularity |
| CN113753216B (en) * | 2021-09-19 | 2023-08-22 | 中国航空工业集团公司西安飞机设计研究所 | A platform configuration of shipborne UAV based on task modularization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN209455012U (en) | 2019-10-01 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190315 |
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| WW01 | Invention patent application withdrawn after publication |