CN105422546A - Multi-piston rod acting cylinder - Google Patents
Multi-piston rod acting cylinder Download PDFInfo
- Publication number
- CN105422546A CN105422546A CN201510995700.3A CN201510995700A CN105422546A CN 105422546 A CN105422546 A CN 105422546A CN 201510995700 A CN201510995700 A CN 201510995700A CN 105422546 A CN105422546 A CN 105422546A
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- CN
- China
- Prior art keywords
- piston rod
- cylindrical shell
- blanking cover
- piston
- oil pocket
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a multi-piston rod acting cylinder. The multi-piston rod acting cylinder comprises a cylinder body, multiple piston rods, a blanking cap and sealing rings. One ends of the multiple piston rods are mounted in the cylinder body, and the other ends extend outside the cylinder body; the blanking cap covers the piston rods, and is fixedly connected with the cylinder body; one ends, arranged in the cylinder body, of the multiple piston rods and the cylinder body form a common oil cavity; the blanking cap, the piston rods and the cylinder body form single piston rod oil cavity; a common oil nozzle communicated with the common oil cavity and a single oil nozzle communicated with the single piston rod oil cavity are formed in the outer surface of the side wall of the cylinder body; and the sealing rings are respectively arranged between sliding fit surfaces of the blanking cap and the piston rods, between sliding fit surfaces of the piston rods and the cylinder body and between fit surfaces of the blanking cap and the cylinder body. The multi-piston rod acting cylinder has the following beneficial effects: the extension and the shrinkage of multiple piston rods are controlled, and one acting cylinder can synchronously drive a control mechanism and an air release control device in the background technology, so that the number of acting cylinders is reduced, and the arrangement of hydraulic pipelines is optimized.
Description
Technical field
The present invention relates to pressurized strut technical field, be specifically related to a kind of many piston rods pressurized strut.
Background technique
Motor, for raising the efficiency and stability, need arrange operating mechanism at the stator blade of imported equipments and parts and change attack angle of blade, arranges venting Effector simultaneously and avoid engine surge on casing.Under normal circumstances, described operating mechanism and described venting Effector need pressurized strut to drive respectively, and this brings the increase of pressurized strut quantity, add the quantity connecting hydraulic oil pipeline simultaneously.
Summary of the invention
The object of this invention is to provide a kind of many piston rods pressurized strut, to solve or the problem at least existing in mitigation technique background at least one place.
The technical solution used in the present invention is: provide a kind of many piston rods pressurized strut, comprises cylindrical shell, multiple piston rod, blanking cover and seal ring, wherein, and described cylindrical shell hollow; One end of described multiple piston rod is arranged on the inside of described cylindrical shell, and the other end stretches out described cylindrical shell; Described blanking cover is set on described piston rod, and described blanking cover is fixedly connected with described cylindrical shell; Described multiple piston rod is arranged on one end of described inner barrel and described cylindrical shell and forms shared oil pocket for making piston rod stretch out cylindrical shell, described blanking cover, blanking cover place piston rod are arranged on one end of described inner barrel and cylindrical shell forms the single piston rod oil pocket that piston rod is bounced back, and the wall outer surface of described cylindrical shell is provided with the shared oil nozzle be communicated with described shared oil pocket and the alone oil nozzle be communicated with described single piston rod oil pocket; Described seal ring be separately positioned on blanking cover and piston rod be slidably matched between face, being slidably matched between face and between blanking cover and the fitting surface of cylindrical shell of piston rod and cylindrical shell.
Preferably, the wall outer surface of described cylindrical shell is also provided with auricle, and described auricle is for fixedly mounting described cylindrical shell.
Preferably, one end that described multiple piston rod is arranged on the outside of described cylindrical shell is connected with connecting rod, and described connecting rod is for connecting driven equipment.
Preferably, described end cap is provided with boss near described piston rod in one end of inner barrel in the inside of cylindrical shell, after described boss and described piston rod are arranged on the end thereof contacts in described cylindrical shell, form minimum single piston rod oil pocket, described minimum single piston rod oil pocket is communicated with described alone oil nozzle.
Preferably, described piston rod comprises first piston bar, second piston rod, described first piston bar, one end of second piston rod is oppositely arranged on the inside of described cylindrical shell, described blanking cover comprises the first blanking cover, second blanking cover, described first blanking cover is set on first piston bar, described second blanking cover is set on the second piston rod, first blanking cover, second blanking cover is fixedly connected with the two ends of cylindrical shell by bolt, first piston bar, second piston rod is arranged on one end of described inner barrel and described cylindrical shell forms shared oil pocket, first piston bar is arranged on one end of described inner barrel and the first blanking cover and cylindrical shell and forms single piston rod oil pocket, second piston rod is arranged on one end of described inner barrel and the second blanking cover and cylindrical shell and forms single piston rod oil pocket.
Preferably, described first piston bar, the second piston rod are provided with boss in one end that the inside of described cylindrical shell is relative, and during two boss contacts, form minimum shared oil pocket, described minimum shared oil pocket is communicated with described shared oil nozzle.
Preferably, the side wall inner surfaces of described cylindrical shell is provided with two limited rings, and described limited ring is used for moving axially of limited piston bar, and described shared oil nozzle is arranged between described two limited rings.
Preferably, the center of described cylindrical shell is set to diameter bore, and the abutting end diameter of described first piston bar and cylindrical shell is greater than the abutting end of described second piston rod and cylindrical shell.
Preferably, described first blanking cover and being slidably matched between face of first piston bar are provided with dust ring, and described second blanking cover and being slidably matched between face of the second piston rod are provided with dust ring.
Preferably, described piston rod also comprises the 3rd piston rod, the axes normal of described 3rd piston rod is in the axis of described first piston bar and the second piston rod, described blanking cover also comprises the 3rd blanking cover, described 3rd piston rod is arranged on one end of inner barrel and the 3rd blanking cover and cylindrical shell and forms single piston rod oil pocket, and first piston bar, the second piston rod, the 3rd piston rod are arranged on one end of described inner barrel and described cylindrical shell forms shared oil pocket.
Beneficial effect of the present invention is:
Many piston rods pressurized strut of the present invention is provided with a shared oil pocket for making piston rod stretch out cylindrical shell, with multiple single piston rod oil pocket making single piston rod bounce back, by controlling stretching out and bouncing back of multiple piston rod, a pressurized strut can drive the operating mechanism described in background technique and venting Effector simultaneously, decrease the quantity of pressurized strut, optimize the layout of hydraulic pipe line.
The wall outer surface of cylindrical shell is provided with auricle, convenient fixing many piston rods pressurized strut.
One end that piston rod is arranged on cylindrical shell outside is connected with connecting rod, conveniently connects driving arrangement.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of many piston rods pressurized strut of one embodiment of the invention;
Fig. 2 is the schematic diagram of many piston rods pressurized strut of another embodiment of the present invention.
Wherein, 1-first piston bar, 2-second piston rod, 6-cylindrical shell, 7-second blanking cover, 8-first blanking cover, 16-auricle, 17-the 3rd piston rod, 18-the 3rd blanking cover.
Embodiment
For making object of the invention process, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention; it will be appreciated that; term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limiting the scope of the invention.
The invention provides a kind of many piston rods pressurized strut, described pressurized strut is aviation field special-purpose word, our oil hydraulic cylinder of often saying i.e., hydraulic energy is changed into mechanical energy, does the hydraulic actuator of straight reciprocating motion (or oscillating motion) by oil hydraulic cylinder.
As shown in Figure 1, a kind of many piston rods pressurized strut, comprises cylindrical shell 6, multiple piston rod, blanking cover and seal ring, wherein, and described cylindrical shell 6 hollow; One end of described multiple piston rod is arranged on the inside of described cylindrical shell 6, and the other end stretches out described cylindrical shell 6; Described blanking cover is set on described piston rod, and described blanking cover is fixedly connected with described cylindrical shell 6; Described multiple piston rod is arranged on one end of described cylindrical shell 6 inside and described cylindrical shell 6 and forms shared oil pocket for making piston rod stretch out cylindrical shell 6, described blanking cover, blanking cover place piston rod are arranged on one end of described cylindrical shell 6 inside and cylindrical shell 6 forms the single piston rod oil pocket that piston rod is bounced back, and the wall outer surface of described cylindrical shell 6 is provided with the shared oil nozzle be communicated with described shared oil pocket and the alone oil nozzle be communicated with described single piston rod oil pocket; Described seal ring be separately positioned on blanking cover and piston rod be slidably matched between face, piston rod and cylindrical shell 6 be slidably matched between face and blanking cover and cylindrical shell 6 fitting surface between.
Many piston rods pressurized strut of the present invention is provided with a shared oil pocket for making piston rod stretch out cylindrical shell, with multiple single piston rod oil pocket making single piston rod bounce back, by controlling stretching out and bouncing back of multiple piston rod, a pressurized strut can drive the operating mechanism described in background technique and venting Effector simultaneously, decrease the quantity of pressurized strut, optimize the layout of hydraulic pipe line.
In the present embodiment, the wall outer surface of described cylindrical shell 6 is also provided with auricle 16, and described auricle 16, for fixedly mounting described cylindrical shell 6, conveniently fixes the pressurized strut of many piston rods.
Be understandable that, described auricle can arrange multiple attachment hole, or arrange multiple auricle at the wall outer surface of cylindrical shell 6, its advantage is, when can prevent single-point from connecting, rotates after the pressurized strut of many piston rods is stressed around coupling shaft.
In the present embodiment, one end that described multiple piston rod is arranged on the outside of described cylindrical shell 6 is connected with connecting rod, and described connecting rod is for connecting driven equipment.Described piston rod adopts with described connecting rod and is threaded, one end arranges internal thread, and the other end arranges outside thread, is set to joint shaft bearing at the other end of described connecting rod, its advantage is the convenient connection regulating connecting rod and driven equipment, avoids producing additional load.
In the present embodiment, described end cap is provided with boss near described piston rod in one end of cylindrical shell 6 inside in the inside of cylindrical shell 6, after described boss and described piston rod are arranged on the end thereof contacts in described cylindrical shell 6, form minimum single piston rod oil pocket, described minimum single piston rod oil pocket is communicated with described alone oil nozzle.
Be understandable that, one end that described piston rod is arranged on the inside of cylindrical shell 6 is provided with boss near the side of the end face of the blanking cover be mated, and after described boss contacts with described end cap, forms minimum single piston rod oil pocket.
In the present embodiment, described piston rod comprises first piston bar 1, second piston rod 2, described first piston bar 1, one end of second piston rod 2 is oppositely arranged on the inside of described cylindrical shell 6, described blanking cover comprises the first blanking cover 8, second blanking cover 7, described first blanking cover 8 is set on first piston bar 1, described second blanking cover 7 is set on the second piston rod 2, first blanking cover 8, second blanking cover 7 is fixedly connected with by the two ends of bolt with cylindrical shell 6, first piston bar 1, second piston rod 2 is arranged on one end of described cylindrical shell 6 inside and described cylindrical shell 6 and is formed and share oil pocket, first piston bar 1 is arranged on one end of described cylindrical shell 6 inside and the first blanking cover 8 and cylindrical shell 6 and forms single piston rod oil pocket, second piston rod 2 is arranged on one end of described cylindrical shell 6 inside and the second blanking cover 7 and cylindrical shell 6 and forms single piston rod oil pocket.
In the present embodiment, the wall outer surface of described cylindrical shell 6 is provided with 3 cylinder boss, described cylinder boss is provided with attachment hole, described attachment hole is communicated with single piston rod oil pocket or is communicated with shared oil pocket, the described attachment hole be communicated with single piston rod oil pocket is provided with alone oil nozzle, the attachment hole be communicated with shared oil pocket is provided with shared oil nozzle.
Be understandable that, described first piston bar 1, second piston rod 2 is provided with boss in one end that the inside of described cylindrical shell 6 is relative, and during two boss contacts, form minimum shared oil pocket, described minimum shared oil pocket is communicated with described shared oil nozzle.
Be understandable that, can also be provided with two limited rings in the side wall inner surfaces of described cylindrical shell 6, described limited ring is used for moving axially of limited piston bar, and described shared oil nozzle is arranged between described two limited rings.Its advantage is, limits the axis shift of single piston rod, avoids because single piston rod displacement distance is excessive and causes shared oil nozzle to be communicated with in same cavity with alone oil nozzle.
Be understandable that, the center of described cylindrical shell 6 is set to diameter bore, and described first piston bar 1 and the abutting end diameter of cylindrical shell 6 are greater than the abutting end of described second piston rod 2 and cylindrical shell 6.Its advantage is, can control first piston bar 1 and stretch out cylindrical shell 6 from the second piston rod 2 with different speed.
Be understandable that, described first blanking cover 8 and being slidably matched between face of first piston bar 1 are provided with dust ring, and described second blanking cover 7 and being slidably matched between face of the second piston rod 2 are provided with dust ring.Its advantage is, described dust ring can prevent dust from entering the inside of cylindrical shell 6, prevents the wearing and tearing of seal ring.
As shown in Figure 2, in another embodiment, be understandable that, described piston rod also comprises the 3rd piston rod 17, the axes normal of described 3rd piston rod 17 is in the axis of described first piston bar 1 and the second piston rod 2, described blanking cover also comprises the 3rd blanking cover 18, described 3rd piston rod 17 is arranged on one end of cylindrical shell 6 inside and the 3rd blanking cover 18 and cylindrical shell 6 and forms single piston rod oil pocket, and first piston bar 1, second piston rod 2, the 3rd piston rod 18 are arranged on one end of described cylindrical shell 6 inside and described cylindrical shell 6 and are formed and share oil pocket.
Piston rod pressurized strut more than two kinds as shown in Figure 1 and Figure 2, when all piston rods of needs stretch out simultaneously, can by sharing oil nozzle to charged pressure oil in shared oil pocket, pressure oil promotes piston rod and stretches out, when only needing one of them to stretch out, can share oil pocket and keep identical pressure with the single piston rod oil pocket of the piston rod not needing to stretch out, to ensure that a piston rod stretches out, all the other piston rods remain static.When needing multiple piston rod to stretch out with different speed, by regulating the pressure difference in shared oil pocket and single piston rod oil pocket, ensure to stretch out according to predetermined speed.
Finally it is to be noted: above embodiment only in order to technological scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (10)
1. the pressurized strut of piston rod more than, is characterized in that: comprise cylindrical shell (6), multiple piston rod, blanking cover and seal ring, wherein,
Described cylindrical shell (6) hollow; One end of described multiple piston rod is arranged on the inside of described cylindrical shell (6), and the other end stretches out described cylindrical shell (6); Described blanking cover is set on described piston rod, and described blanking cover is fixedly connected with described cylindrical shell (6);
Described multiple piston rod is arranged on the inner one end of described cylindrical shell (6) and described cylindrical shell (6) and is formed and be used for making piston rod stretch out the shared oil pocket of cylindrical shell (6), described blanking cover, blanking cover place piston rod are arranged on the inner one end of described cylindrical shell (6) and cylindrical shell (6) forms the single piston rod oil pocket that piston rod is bounced back, and the wall outer surface of described cylindrical shell (6) is provided with the shared oil nozzle be communicated with described shared oil pocket and the alone oil nozzle be communicated with described single piston rod oil pocket;
Described seal ring be separately positioned on blanking cover and piston rod be slidably matched between face, piston rod and cylindrical shell (6) be slidably matched between face and blanking cover and cylindrical shell (6) fitting surface between.
2. many piston rods pressurized strut as claimed in claim 1, is characterized in that: the wall outer surface of described cylindrical shell (6) is also provided with auricle (16), and described auricle (16) is for fixedly mounting described cylindrical shell (6).
3. many piston rods pressurized strut as claimed in claim 1, is characterized in that: one end that described multiple piston rod is arranged on the outside of described cylindrical shell (6) is connected with connecting rod, and described connecting rod is for connecting driven equipment.
4. many piston rods pressurized strut as claimed in claim 1, it is characterized in that: described end cap is provided with boss near described piston rod in one end that cylindrical shell (6) is inner in the inside of cylindrical shell (6), after described boss and described piston rod are arranged on the end thereof contacts in described cylindrical shell (6), form minimum single piston rod oil pocket, described minimum single piston rod oil pocket is communicated with described alone oil nozzle.
5. many piston rods pressurized strut as claimed in claim 1, it is characterized in that: described piston rod comprises first piston bar (1), second piston rod (2), described first piston bar (1), one end of second piston rod (2) is oppositely arranged on the inside of described cylindrical shell (6), described blanking cover comprises the first blanking cover (8), second blanking cover (7), described first blanking cover (8) is set on first piston bar (1), described second blanking cover (7) is set on the second piston rod (2), first blanking cover (8), second blanking cover (7) is fixedly connected with by the two ends of bolt with cylindrical shell (6), first piston bar (1), second piston rod (2) is arranged on the inner one end of described cylindrical shell (6) and described cylindrical shell (6) forms shared oil pocket, first piston bar (1) is arranged on the inner one end of described cylindrical shell (6) and the first blanking cover (8) and described cylindrical shell (6) and forms single piston rod oil pocket, second piston rod (2) is arranged on the inner one end of described cylindrical shell (6) and the second blanking cover (7) and described cylindrical shell (6) and forms single piston rod oil pocket.
6. many piston rods pressurized strut as claimed in claim 5, it is characterized in that: described first piston bar (1), the second piston rod (2) are provided with boss in one end that the inside of described cylindrical shell (6) is relative, during two boss contacts, form minimum shared oil pocket, described minimum shared oil pocket is communicated with described shared oil nozzle.
7. many piston rods pressurized strut as claimed in claim 6, it is characterized in that: the side wall inner surfaces of described cylindrical shell (6) is provided with two limited rings, described limited ring is used for moving axially of limited piston bar, and described shared oil nozzle is arranged between described two limited rings.
8. many piston rods pressurized strut as claimed in claim 7, it is characterized in that: the center of described cylindrical shell (6) is set to diameter bore, described first piston bar (1) is greater than the abutting end of described second piston rod (2) and cylindrical shell (6) with the abutting end diameter of cylindrical shell (6).
9. many piston rods pressurized strut as claimed in claim 8, it is characterized in that: described first blanking cover (8) and being slidably matched between face of first piston bar (1) are provided with dust ring, described second blanking cover (7) and being slidably matched between face of the second piston rod (2) are provided with dust ring.
10. many piston rods pressurized strut as claimed in claim 5, it is characterized in that: described piston rod also comprises the 3rd piston rod (17), the axes normal of described 3rd piston rod (17) is in the axis of described first piston bar (1) with the second piston rod (2), described blanking cover also comprises the 3rd blanking cover (18), described 3rd piston rod (17) is arranged on the inner one end of cylindrical shell (6) and the 3rd blanking cover (18) and cylindrical shell (6) and forms single piston rod oil pocket, first piston bar (1), second piston rod (2), 3rd piston rod (18) is arranged on the inner one end of described cylindrical shell (6) and described cylindrical shell (6) forms shared oil pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995700.3A CN105422546A (en) | 2015-12-25 | 2015-12-25 | Multi-piston rod acting cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995700.3A CN105422546A (en) | 2015-12-25 | 2015-12-25 | Multi-piston rod acting cylinder |
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| CN105422546A true CN105422546A (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510995700.3A Pending CN105422546A (en) | 2015-12-25 | 2015-12-25 | Multi-piston rod acting cylinder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545631A (en) * | 2016-11-30 | 2017-03-29 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of energy storage device with locking mechanism |
| CN112096687A (en) * | 2020-09-04 | 2020-12-18 | 中国航发沈阳黎明航空发动机有限责任公司 | Oil nozzle telescopic hydraulic actuator cylinder for aero-engine |
| CN112879376A (en) * | 2019-11-29 | 2021-06-01 | 东港市路辅机械有限公司 | Double-piston rod type hydraulic oil cylinder |
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| CN104389826A (en) * | 2014-09-08 | 2015-03-04 | 季金锋 | Novel reinforcement connector clamping device and application method thereof |
| CN104389845A (en) * | 2014-11-21 | 2015-03-04 | 西安昆仑工业（集团）有限责任公司 | Double-piston-rod double-piston double-acting hydraulic cylinder |
| CN104591014A (en) * | 2014-11-25 | 2015-05-06 | 中联重科股份有限公司 | Telescopic cylinder, landing leg control system and crane |
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2015
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| US3934830A (en) * | 1973-05-28 | 1976-01-27 | Zinser Textilmaschinen Gmbh | Spooling mechanism |
| WO2007064221A1 (en) * | 2005-11-30 | 2007-06-07 | Kongsberg Automotive As | Stable 6-position cylinder |
| WO2007112857A1 (en) * | 2006-03-29 | 2007-10-11 | Daimler Ag | Piston-cylinder unit, in particular for an automatic transmission of a motor vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106545631A (en) * | 2016-11-30 | 2017-03-29 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of energy storage device with locking mechanism |
| CN106545631B (en) * | 2016-11-30 | 2019-04-23 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of energy storage device with locking mechanism |
| CN112879376A (en) * | 2019-11-29 | 2021-06-01 | 东港市路辅机械有限公司 | Double-piston rod type hydraulic oil cylinder |
| CN112096687A (en) * | 2020-09-04 | 2020-12-18 | 中国航发沈阳黎明航空发动机有限责任公司 | Oil nozzle telescopic hydraulic actuator cylinder for aero-engine |
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Application publication date: 20160323 |