CN207049091U - Aircraft hydraulic pumps are from pressure charging system - Google Patents
Aircraft hydraulic pumps are from pressure charging system Download PDFInfo
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- CN207049091U CN207049091U CN201721035290.9U CN201721035290U CN207049091U CN 207049091 U CN207049091 U CN 207049091U CN 201721035290 U CN201721035290 U CN 201721035290U CN 207049091 U CN207049091 U CN 207049091U
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Abstract
It the utility model is related to hydraulic air supercharging technology field,Aircraft hydraulic pumps are specifically provided from pressure charging system,Including hydraulic oil container,The accumulator connected with hydraulic oil container and the charger connected with accumulator,Accumulator connects with system hydraulic pump,Hydraulic oil container includes fluid-tight,Piston rod assembly,Piston and outer barrel,Fluid-tight is hollow structure,It has ozzle and bar portion,The ozzle of fluid-tight is fixedly connected with accumulator,The bar portion of fluid-tight is socketed in piston rod assembly and is slidably connected with it,Piston rod assembly is socketed in outer barrel,Piston is fixed on piston rod assembly outer wall and in sealing contact with outer barrel,Gases at high pressure are transferred to fluid-tight by charger by accumulator,Slide bar portion of the piston rod assembly along fluid-tight,Keep the oil liquid pressure in hydraulic oil container,Using accumulator initial pressurization pressure is provided for fuel tank,Efficiently solve the boost issues of aircraft hydraulic pumps start-up course,Hydraulic pump is avoided to produce air pocket in start-up course.
Description
Technical field
It the utility model is related to hydraulic air supercharging technology field, more particularly to aircraft hydraulic pumps are from pressure charging system.
Background technology
It is on the charged piston for acting on fuel tank using system high pressure pressure from pressurized fuel tank, applies pressure on piston,
For the hydraulic oil supercharging in fuel tank.
What is be widely used at present produces supercharging from pressurized fuel tank by the high-pressure after hydraulic system hydraulic pressure pump startup, and
Without boost pressure before hydraulic pressure pump startup and in start-up course, or by pressurized spring generation boost pressure, but pressure is smaller.
Utility model content
To overcome at least one defect existing for above-mentioned prior art, the utility model provides aircraft hydraulic pumps from supercharging
System, including the hydraulic oil container accumulator connected with the hydraulic oil container and the charger connected with the accumulator, institute
Accumulator is stated to connect with system hydraulic pump；
The hydraulic oil container includes fluid-tight, piston rod assembly, piston and outer barrel, and the fluid-tight is hollow structure, and it has
Ozzle and bar portion, the ozzle of the fluid-tight are fixedly connected with the accumulator, and the bar portion of the fluid-tight is socketed on the piston rod
It is slidably connected in component and with it, the piston rod assembly is socketed in the outer barrel, and the piston is fixed on the piston rod
Component outer wall is simultaneously in sealing contact with the outer barrel；
Gases at high pressure are transferred to the fluid-tight by the charger by the accumulator, make the piston rod assembly edge
The bar portion of the fluid-tight is slided, and keeps the oil liquid pressure in the hydraulic oil container.
Preferably, the hydraulic oil container also includes end cap, and the end cap is fixed on the both ends end of the outer barrel, its outer wall
Contacted with the inner wall sealing of the outer barrel, the end cap is provided with the male half coupling being engaged with the outer barrel end face.
Preferably, the hydraulic oil container also includes nut, and the nut is provided with the male half coupling being engaged with the end cap, institute
State outer drum outer wall and be provided with screw thread, the nut is spirally connected with the outer barrel, and the end cap is fixed by the nut and the outer barrel.
Preferably, exhaust joint is housed, the exhaust joint passes through atmosphere outside conduit and machine on the end cap end face.
Preferably, the piston rod assembly includes inner piston rod, outer piston bar and plug screw；
One end of the inner piston rod is socketed on the outside of the fluid-tight bar portion and is slidably connected with it, and the end and the end
The inner seal contact of lid, the other end of the inner piston rod is cylinder bottom；
The outer piston bar is hollow structure, and it is socketed on the outside of the inner piston rod, the outer piston bar inwall and institute
It is in sealing contact to state inner piston rod, outer wall is contacted with the piston seal and mutually fixed；
The plug screw is bolted in one end of the remote fluid-tight ozzle of the outer piston bar, and seals against contact.
Preferably, the outer piston bar inner and outer wall is provided with seal groove, is equipped with sealing ring, the outer piston in it
Bar is contacted with the inner piston rod and the piston seal respectively by sealing ring, the outer piston bar outer wall be provided with male half coupling and
Snap ring, the piston are fixed between the male half coupling and the snap ring.
Preferably, the inner piston rod is when at the liquid sealing pipe mouth position, between its bottom and the plug screw
With certain distance.
Preferably, the ozzle of the fluid-tight is externally provided with screw thread, and the ozzle of the fluid-tight is spirally connected with the accumulator.
Preferably, the piston outer wall is provided with multiple seal grooves, is provided with sealing ring in it, the piston by sealing ring with
The outer barrel is in sealing contact.
Aircraft hydraulic pumps provided by the utility model provide initial pressurization pressure using accumulator from pressure charging system for fuel tank
Power, the boost issues of aircraft hydraulic pumps start-up course are efficiently solved, avoid hydraulic pump from producing air pocket in start-up course, and
With not by external interference, system is safe and reliable the advantages of.
Brief description of the drawings
Embodiment below with reference to accompanying drawing description is exemplary, it is intended to for explanation and illustration the utility model, without
It is understood that as the limitation to the scope of protection of the utility model.
Fig. 1 is a kind of annexation figure of illustrative examples of the present utility model；
Fig. 2 is the front sectional view of the hydraulic oil container in a kind of illustrative examples of the present utility model；
Fig. 3 is the side view of the hydraulic oil container in a kind of illustrative examples of the present utility model.
Reference：
10 hydraulic oil containers
11 fluid-tights
12 pistons
13 outer barrels
14 end caps
15 nuts
21 inner piston rods
22 outer piston bars
23 plug screws
30 exhaust joints
70 accumulators
80 chargers
90 system hydraulic pumps
Embodiment
To make the purpose, technical scheme and advantage that the utility model is implemented clearer, below in conjunction with the utility model
Accompanying drawing in embodiment, the technical scheme in the embodiment of the utility model is further described in more detail.
It should be noted that：In the accompanying drawings, from beginning to end same or similar label represent same or similar element or
Element with same or like function.Described embodiment is the utility model part of the embodiment, rather than whole
Embodiment, in the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.Based on this reality
With the embodiment in new, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of the utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
The limitation of novel protected scope.
Herein, " schematic " expression " serving as example, example or explanation ", will should not be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to a kind of preferred or more advantageous technical scheme.
As shown in figure 1, the utility model provides aircraft hydraulic pumps from pressure charging system, including hydraulic oil container 10 and hydraulic pressure
The accumulator 70 that fuel tank 10 connects and the charger 80 with the connection of accumulator 70, accumulator 70 and system hydraulic pump 90 connect
Connect.
As shown in Figures 2 and 3, hydraulic oil container 10 includes fluid-tight 11, piston rod assembly, piston 12 and outer barrel 13, fluid-tight 11
For hollow structure, it has ozzle and bar portion, and the ozzle of fluid-tight 11 is fixedly connected with accumulator 70, in the present embodiment, fluid-tight 11
Ozzle be externally provided with screw thread, ozzle and the accumulator 70 of fluid-tight 11 are spirally connected.The bar portion of fluid-tight 11 is socketed in piston rod assembly simultaneously
It is slidably connected with it, piston rod assembly is socketed in outer barrel 13, and piston 12 is fixed on piston rod assembly outer wall and close with outer barrel 13
Sealing-in is touched.In the present embodiment, the outer wall of piston 12 is provided with multiple seal grooves, is provided with sealing ring in it, piston 12 by sealing ring with
Outer barrel 13 is in sealing contact.
Gases at high pressure are transferred to fluid-tight 11 by charger 80 by accumulator 70, make bar of the piston rod assembly along fluid-tight 11
Portion is slided, and keeps the oil liquid pressure in hydraulic oil container 10.
In one embodiment, hydraulic oil container 10 also includes end cap 14, and end cap 14 is fixed on the both ends end of outer barrel 13, its
Outer wall contacts with the inner wall sealing of outer barrel 13, and end cap 14 is provided with the male half coupling being engaged with the end face of outer barrel 13.Piston 12 and end cap
Waste gas chamber B is formed between 14, one end of piston 12 and outer barrel 13 forms sap cavity C.In the present embodiment preferably, the outer wall of end cap 14
Seal groove is provided with, is provided with sealing ring in it, end cap 14 is in sealing contact by sealing ring and outer barrel 13.In the present embodiment, hydraulic oil
Case 10 also includes nut 15, and nut 15 is provided with the male half coupling being engaged with end cap 14, and the outer wall of outer barrel 13 is provided with screw thread, nut 15 and
Outer barrel 13 is spirally connected, and end cap 14 is fixed by nut 15 and outer barrel 13, and exhaust joint 30, exhaust joint are housed on the end face of end cap 14
30 pass through atmosphere outside conduit and machine.
In another embodiment, piston rod assembly includes inner piston rod 21, outer piston bar 22 and plug screw 23.Inner piston rod
21 one end is socketed on the outside of the bar portion of fluid-tight 11 and is slidably connected with it, and the end contacts with the inner seal of end cap 14, interior work
The other end of stopper rod 21 is cylinder bottom, and the inside of inner piston rod 21 is high pressure air cavity A.In the present embodiment preferably, inner piston rod 21
Outer wall is provided with seal groove, is provided with sealing ring in it, inner piston rod 21 is in sealing contact by sealing ring and end cap 14.Outer piston bar 22
For hollow structure, it is socketed on the outside of inner piston rod 21, and the inwall of outer piston bar 22 and inner piston rod 21 are in sealing contact, outer wall and work
It is in sealing contact and mutually fix to fill in 12.Plug screw 23 is bolted in one end of the ozzle of remote fluid-tight 11 of outer piston bar 22, and seals against
Contact.In the present embodiment, inner piston rod 21 has one when near 11 ozzle opening position of fluid-tight between its bottom and plug screw 23
Set a distance.In the present embodiment, the inner and outer wall of outer piston bar 22 is provided with seal groove, is equipped with sealing ring, outer piston bar in it
22 is in sealing contact with inner piston rod 21 and piston 12 respectively by sealing ring, and the outer wall of outer piston bar 22 is provided with male half coupling and snap ring,
Piston 12 is fixed between the male half coupling and the snap ring.
Operation principle of the present utility model is as follows：
Charger 80 acts on accumulator 70, and accumulator 70 acts on hydraulic oil container 10, in the startup of system hydraulic pump 9
Before, charger 80 provides gases at high pressure to accumulator 70, and accumulator 70 makes the fluid in hydraulic oil container 10 by gases at high pressure
In pressured state, after system hydraulic pump 90 starts, system hydraulic pump 90 provides height instead of charger 80 to accumulator 70
Calm the anger body, can so make fluid system hydraulic pump 90 is not actuated and start-up course in can also be in pressured state.
Specifically, accumulator 70 acts on the ozzle of fluid-tight 11 and passes through ozzle to its conveying high-pressure gas, gases at high pressure
Entering bar portion, be i.e. in high pressure air cavity A, and flow to from bar portion in inner piston rod 21, inner piston rod 21 is in air-tight state, and
Influence to slide along the bar portion of inner piston rod 21 by gases at high pressure, when the cylinder bottom of inner piston rod 21 is hindered by plug screw 23, inner carrier
Bar 21 drives the synchronizing moving of plug screw 23, and plug screw 23 drives the synchronizing moving of outer piston bar 22, outer piston bar 22 with piston 12 outside
Synchronizing moving in cylinder 13 so that sap cavity C volume reduces, and waste gas chamber B volume increase, that is, plays what is be pressurized for hydraulic oil container 10
Effect.
It is understood that when outer piston bar 22 and plug screw 23 move, the respective end of outer barrel 13, which can be provided with, accommodates outer live
The cavity that stopper rod 22 and plug screw 23 move, to ensure that outer piston bar 22 and plug screw 23 move to greatest extent.Meanwhile in inner carrier
When bar 21 is located at initial position, if there is certain distance between 21 bottoms of plug screw 23 and inner piston rod, in the band of inner piston rod 21
Before dynamic outer piston bar 22 moves, inner piston rod 21 can produce relative displacement and reach plug screw 23 between elder generation and outer piston bar 22
Place, then drive the synchronizing moving of outer piston bar 22.
The pressure size that hydraulic oil container 10 is pressurized depends on the area ratio of piston 12 and plug screw 23, if two piston areas
Than for 28：1, then when system pressure is 28MPa, the inner fluid pressure of hydraulic oil container 10 is 1MPa.
Waste gas chamber B is reached when having fluid or oil gas to flow through sealing ring between piston 12 and outer barrel 13 from sap cavity C, or from liquid
When the sealing ring that chamber C flows through between piston 12 and outer piston bar 22 reaches waste gas chamber B, fluid or oil gas can be suitable from exhaust joint 30
Conduit to be discharged to outside machine, prevent to being polluted in machine.
The aircraft hydraulic pumps have been applied successfully on the aircraft of China's Multiple Type from pressure charging system, and application effect protrudes,
Reach design objective requirement comprehensively, there is great application value and great economic benefit and social benefit.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art is in the technical scope that the utility model discloses, the change that can readily occur in
Change or replace, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with described
Scope of the claims is defined.
Claims (9)
1. aircraft hydraulic pumps are from pressure charging system, it is characterised in that：Connected including hydraulic oil container (10) and the hydraulic oil container (10)
Accumulator (70) and charger (80) with the accumulator (70) connection, the accumulator (70) and system hydraulic pump
(90) connect；
The hydraulic oil container (10) includes fluid-tight (11), piston rod assembly, piston (12) and outer barrel (13), and the fluid-tight (11) is
Hollow structure, it has ozzle and bar portion, and the ozzle of the fluid-tight (11) is fixedly connected with the accumulator (70), the fluid-tight
(11) bar portion is socketed in the piston rod assembly and is slidably connected with it, and the piston rod assembly is socketed on the outer barrel
(13) in, the piston (12) is fixed on the piston rod assembly outer wall and in sealing contact with the outer barrel (13)；
Gases at high pressure are transferred to the fluid-tight (11) by the charger (80) by the accumulator (70), make the piston
Bar portion of the bar assembly along the fluid-tight (11) is slided, and keeps the oil liquid pressure in the hydraulic oil container (10).
2. aircraft hydraulic pumps according to claim 1 are from pressure charging system, it is characterised in that：The hydraulic oil container (10) is also wrapped
End cap (14) is included, the end cap (14) is fixed on the both ends end of the outer barrel (13), and its outer wall is interior with the outer barrel (13)
Wall is in sealing contact, and the end cap (14) is provided with the male half coupling being engaged with the outer barrel (13) end face.
3. aircraft hydraulic pumps according to claim 2 are from pressure charging system, it is characterised in that：The hydraulic oil container (10) is also wrapped
Nut (15) is included, the nut (15) is provided with the male half coupling being engaged with the end cap (14), and outer barrel (13) outer wall is provided with
Screw thread, the nut (15) are spirally connected with the outer barrel (13), and the end cap (14) passes through the nut (15) and the outer barrel
(13) it is fixed.
4. aircraft hydraulic pumps according to claim 2 are from pressure charging system, it is characterised in that：Filled on end cap (14) end face
There is exhaust joint (30), the exhaust joint (30) passes through atmosphere outside conduit and machine.
5. aircraft hydraulic pumps according to any claim in claim 2 to 4 are from pressure charging system, it is characterised in that：Institute
Stating piston rod assembly includes inner piston rod (21), outer piston bar (22) and plug screw (23)；
One end of the inner piston rod (21) is socketed on the outside of the fluid-tight (11) bar portion and is slidably connected with it, and the end and institute
The inner seal contact of end cap (14) is stated, the other end of the inner piston rod (21) is cylinder bottom；
The outer piston bar (22) is hollow structure, and it is socketed on the outside of the inner piston rod (21), the outer piston bar (22)
Inwall and the inner piston rod (21) are in sealing contact, and outer wall is in sealing contact with the piston (12) and mutually fixes；
The plug screw (23) is bolted in one end of remote fluid-tight (11) ozzle of the outer piston bar (22), and seals against
Contact.
6. aircraft hydraulic pumps according to claim 5 are from pressure charging system, it is characterised in that：Outer piston bar (22) inwall
Be provided with seal groove with outer wall, be equipped with sealing ring in it, the outer piston bar (22) by sealing ring respectively with the interior work
Stopper rod (21) and the piston (12) are in sealing contact, and outer piston bar (22) outer wall is provided with male half coupling and snap ring, the piston
(12) it is fixed between the male half coupling and the snap ring.
7. aircraft hydraulic pumps according to claim 5 are from pressure charging system, it is characterised in that：The inner piston rod (21) is most
During close to the fluid-tight (11) ozzle opening position, there is certain distance between its bottom and the plug screw (23).
8. aircraft hydraulic pumps according to claim 1 are from pressure charging system, it is characterised in that：Outside the ozzle of the fluid-tight (11)
Provided with screw thread, ozzle and the accumulator (70) of the fluid-tight (11) are spirally connected.
9. aircraft hydraulic pumps according to claim 1 are from pressure charging system, it is characterised in that：Piston (12) outer wall is provided with
Multiple seal grooves, sealing ring are provided with it, the piston (12) is in sealing contact by sealing ring and the outer barrel (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721035290.9U CN207049091U (en) | 2017-08-18 | 2017-08-18 | Aircraft hydraulic pumps are from pressure charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721035290.9U CN207049091U (en) | 2017-08-18 | 2017-08-18 | Aircraft hydraulic pumps are from pressure charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207049091U true CN207049091U (en) | 2018-02-27 |
Family
ID=61503882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721035290.9U Active CN207049091U (en) | 2017-08-18 | 2017-08-18 | Aircraft hydraulic pumps are from pressure charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207049091U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380416A (en) * | 2018-05-15 | 2018-08-10 | 中国空间技术研究院 | It is a kind of can multi-injection detachable jet device and jetting method |
| CN110454446A (en) * | 2019-08-15 | 2019-11-15 | 中国商用飞机有限责任公司 | Aircraft hydraulic pumps oil suction pressure charging system |
| CN110778542A (en) * | 2019-10-23 | 2020-02-11 | 天津大学 | Closed pressure regulating oil tank for high-precision detection of oil quantity |
-
2017
- 2017-08-18 CN CN201721035290.9U patent/CN207049091U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380416A (en) * | 2018-05-15 | 2018-08-10 | 中国空间技术研究院 | It is a kind of can multi-injection detachable jet device and jetting method |
| CN110454446A (en) * | 2019-08-15 | 2019-11-15 | 中国商用飞机有限责任公司 | Aircraft hydraulic pumps oil suction pressure charging system |
| CN110778542A (en) * | 2019-10-23 | 2020-02-11 | 天津大学 | Closed pressure regulating oil tank for high-precision detection of oil quantity |
| CN110778542B (en) * | 2019-10-23 | 2021-08-24 | 天津大学 | Closed pressure regulating oil tank for high-precision detection of oil quantity |
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