CN101743379A - Centrifugal compressor having adjustable inlet guide vanes - Google Patents
Centrifugal compressor having adjustable inlet guide vanes Download PDFInfo
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- CN101743379A CN101743379A CN200880011398A CN200880011398A CN101743379A CN 101743379 A CN101743379 A CN 101743379A CN 200880011398 A CN200880011398 A CN 200880011398A CN 200880011398 A CN200880011398 A CN 200880011398A CN 101743379 A CN101743379 A CN 101743379A
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- compressor
- lever arm
- pin
- blades
- ring
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- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims description 35
- 238000013461 design Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/51—Inlet
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An apparatus for adjustment of inlet guide vanes of a compressor includes a ring having a plurality of slots spaced around a circumference thereof; a plurality of lever arm assemblies each having a pin that includes a body with a first end and a second end and a lever arm extending perpendicularly from the second end of the body of the pin; a plurality of vanes each coupled to an end of one of the plurality of lever arms by a shaft; and a rack and pinion drive mechanism. The pin of each of the lever arm assemblies is configured to be positioned within each of the plurality of slots such that the first end of the pin extends into the slot. The rack and pinion drive mechanism includes a pinion coupled to the shaft of one of the plurality of vanes, thereby creating a drive vane; and a driven rack operationally coupled to the pinion. The drive vane is configured to rotate the ring via the rack and pinion drive mechanism, thereby adjusting an angular position of the plurality of vanes.
Description
The cross reference of related application
The name that the application requires on April 10th, 2007 to submit to is called the U.S. Provisional Patent Application No.60/922 of " CentrifugalCompressor Having Adjustable Inlet Guide Vanes (centrifugal compressor with adjustable inlet guide vanes) ", 713 preference, the full content of this temporary patent application is incorporated this paper by reference into.
Technical field
The present invention relates to compressor field, say with having more, the present invention relates to the device that the air-intake guide vane of compressor is regulated.
Background technique
Centrifugal compressor is generally used for LNG Liquefied natural gas industry.Because the character that liquefaction is handled, this application need excursion is the compressor performance characteristic widely.In order to obtain all changes of desired properties, the common used in industry practice is to use the compressor of the angle that can change near the blade of import level.The ability that changes the angle of inlet vane for various processing makes the user obtain excursion performance characteristics widely.
Authorize U.S. Patent No. 6,679,057 (' 057 patent of Arnold) disclosed the turbosupercharger guide vane apparatus that comprises a plurality of blades that are connected with synchronizing ring.This synchronizing ring is rotated because of the starter crank, and this makes the starting lever upper-arm circumference move around the longitudinal axis of starter crank, from and influence the rotation of synchronizing ring via starting pin.In the U.S. Patent No. 6,269,642 of authorizing people such as Arnold, illustrate in greater detail the starting mechanism of ' 057 patent.
Above-mentioned prior art illustrates the crankweb that how to use the transmission device that engages with the periphery of synchronizing ring that synchronizing ring rotation or use are engaged with synchronizing ring and makes the synchronizing ring rotation.U.S. Patent No. 6,269,642 and 6,679,057 has disclosed the rotation of using this crankweb to influence synchronizing ring, and wherein crankweb is started by the gear rack device.
Yet, the situation of the primary blades that drives for gear rack especially, the crankweb of prior art is not connected with any guide vane.Therefore, can further improve the mechanism of moving blade.
Summary of the invention
The present invention relates to a kind of device that the air-intake guide vane of compressor is regulated.Described device comprises: ring, and it has a plurality of grooves of opening around its circle spacing; A plurality of lever arm assemblies, each lever arm assembly has pin and lever arm, and described pin comprises the main body with first end and second end, and described lever arm vertically extends from described second end of the main body of described pin; A plurality of blades, each vanes is connected with the end of one of described a plurality of lever arms by axle; And gear rack driving mechanism.The pin structure of each lever arm assembly is the respective grooves that is arranged in described a plurality of grooves, thereby described first end of described pin is extended in the described groove.Described gear rack driving mechanism comprises: gear, and it is connected with the axle of one of described a plurality of blades, thereby sets up drive vane; And driven tooth bar, it is connected with described operated gear.Described drive vane is configured to make described ring rotation by described gear rack driving mechanism, thereby regulates the angular orientation of described a plurality of blades.
Described driven tooth bar can with provide the live axle of power to be connected by the oil hydraulic cylinder that is positioned at described compressor outside.Described device can be oriented to keep apart by the flow path of end wall covering plate and described compressor.Can in the axial direction described ring be limited in the described compressor by end wall and described end wall covering plate.When described drive vane rotated described ring by described gear rack driving mechanism, described a plurality of blades all rotated to identical angle, thereby regulate the angular orientation of described a plurality of blades.
The invention still further relates to a kind of compressor, comprising: shell; Rotor, it has axle and the impeller that is positioned at described shell; And propeller regulating mechanism, it is positioned at described shell and centers on described rotor.Described propeller regulating mechanism comprises: ring, and it has a plurality of grooves of opening around its circle spacing; A plurality of lever arm assemblies, each lever arm assembly has pin and lever arm, and described pin comprises the main body with first end and second end, and described lever arm vertically extends from described second end of the main body of described pin; A plurality of blades, each vanes is connected with the end of one of described a plurality of lever arms by axle; And gear rack driving mechanism.The pin structure of each lever arm assembly is the respective grooves that is arranged in described a plurality of grooves, thereby described first end of described pin is extended in the described groove.Described gear rack driving mechanism comprises: gear, and it is connected with the axle of one of described a plurality of blades, thereby sets up drive vane; And driven tooth bar, it is connected with described operated gear.Described drive vane is configured to make described ring rotation by described gear rack driving mechanism, thereby regulates the angular orientation of described a plurality of blades.
Described driven tooth bar can with provide the live axle of power to be connected by the oil hydraulic cylinder that is positioned at described compressor outside.Described device can be oriented to keep apart by the flow path of end wall covering plate and described compressor.Can in the axial direction described ring be limited in the described compressor by end wall and described end wall covering plate.When described drive vane rotated described ring by described gear rack driving mechanism, described a plurality of blades can all rotate to identical angle, thereby regulate the angular orientation of described a plurality of blades.
In addition, the present invention relates to a kind of propeller regulating mechanism of compressor.Described propeller regulating mechanism comprises: ring: and a plurality of blade, its circumference around described ring pivots and installs.One of described a plurality of blades are drive vane, and described drive vane is configured to make described ring rotation by means of the gear rack driving mechanism, thereby regulate the angular orientation of described a plurality of blades.
Described ring can comprise a plurality of grooves of opening around its circle spacing.Described propeller regulating mechanism can also comprise a plurality of lever arm assemblies, and each lever arm assembly comprises pin and lever arm, and described pin has the main body with first end and second end, and described lever arm vertically extends from described second end of the main body of described pin.The pin of each lever arm assembly can be configured to be arranged in the respective grooves of described a plurality of grooves, thereby described first end of described pin is extended in the described groove.Described a plurality of blade can all be connected with the end of one of described a plurality of lever arms via axle.
Described gear rack driving mechanism can comprise: gear, and it is connected with the axle of one of described a plurality of blades, thereby sets up drive vane; And driven tooth bar, it is connected with described operated gear.Described driven tooth bar can be connected with live axle, and oil hydraulic cylinder can be set provide power to described live axle, thereby drives described driven tooth bar.
Consider the following description and the appended claims book with reference to the accompanying drawings, can be expressly understood operating method and the combination of function and parts and the Economy of manufacturing of these and other feature of the present invention and characteristic, associated structural elements, wherein institute's drawings attached forms the part of this specification, and similarly reference character is represented corresponding components in each accompanying drawing.Unless clearly indicate in addition, otherwise " one " of the singulative that uses in specification and claims, " one " and " this " comprise a plurality of indicants.
Description of drawings
Fig. 1 is the perspective cut-away schematic view that is used for device that the angular orientation of a plurality of air-intake guide vanes of being positioned at compressor is regulated according to of the present invention;
Fig. 2 is the perspective view that is used for device that the angular orientation of a plurality of air-intake guide vanes of compressor is regulated according to of the present invention;
Fig. 3 is the front view of device shown in Figure 2;
Fig. 4 is the sectional view along the device of the line 4-4 intercepting of Fig. 3;
Fig. 5 is the perspective view of the rotating ring of device;
Fig. 6 is the perspective view of the blade with lever arm of device;
Fig. 7 is the perspective view that is fixed on a plurality of blades in the ring by means of corresponding lever arm;
Fig. 8 is the local front plan views of the ring with pinion and rack of device;
Fig. 9 is the local back plane figure of the ring with pinion and rack of device;
Figure 10 is the front perspective view of device, and tooth bar is shown;
Figure 11 is the rear view of device, and pinion and rack is shown; And
Figure 12 is the perspective view of device, and the ring that is positioned at the end wall center is shown.
Embodiment
Below, for purpose of illustration, term " on ", D score, " right side ", " left side ", " vertically ", " level ", " top ", " end ", " horizontal stroke ", " indulging " and their the derivative orientation in will be with reference to the accompanying drawings narrates the present invention.Yet, should be appreciated that, unless clearly be indicated as being reverse situation, the present invention can adopt various optional modification.Be also to be understood that concrete device illustrated in the accompanying drawings and that describe in the following description only is an exemplary embodiment of the present invention.Therefore, relevant with the disclosed embodiment of this paper concrete size and other physical property should not be understood that it is restrictive.
With reference to figure 1, adopt the centrifugal compressor of reference character 1 expression to be included in the shell 3 that inside is provided with rotor generally.Rotor comprises impeller 5 and axle 7.Adopt the device or the propeller regulating mechanism of reference character 9 expressions to be positioned at the axle 7 that shell 3 also centers on rotor generally, and be used for the angular orientation of a plurality of air-intake guide vanes 11 is regulated.Compressor 1 also comprises the support housing 29 that is connected with end wall 17.
Propeller regulating mechanism 9 comprises rotating ring 13 (will be described in more detail hereinafter), and this rotating ring 13 has a plurality of air-intake guide vanes 11 of opening around the circle spacing of rotating ring.Propeller regulating mechanism 9 is positioned at the shell 3 of compressor 1, thereby keeps apart by the end wall covering plate 15 and the flow path of compressor 1.By keeping propeller regulating mechanism 9 to be positioned at outside the flow path, can keep the performance of aerodynamic efficiency and import level.In addition, in the axial direction rotating ring 13 is limited in the compressor 1 by end wall 17 and end wall covering plate 15.Rotating ring 13 also should be aimed to guarantee that blade 11 is with identical angle rotation with the center line of compressor 1.For example, as shown in figure 12, this can realize by the center that rotating ring 13 is arranged on the surface of end wall 17.Propeller regulating mechanism 9 also comprises gear rack driving mechanism 21 (will be described in more detail hereinafter).Gear rack driving mechanism 21 is connected with live axle 23, and live axle 23 provides power by the oil hydraulic cylinder 25 that is positioned at the housing 27 that is arranged on compressor 1 outside.
Referring to figs. 2 to Fig. 6, and continue with reference to figure 1, propeller regulating mechanism 9 comprises a plurality of adjustable inlet guide vanes 11 that are provided with around the circumference of rotating ring 13.Though propeller regulating mechanism 9 shown in the drawings comprises 16 adjustable inlet guide vanes 11, should not be considered as this is limitation of the present invention, and should think the blade that can use any suitable number.Usually, for the aerodynamic design that makes adjustable inlet guide vanes 11 is effective, each blade 11 in the inlet part of compressor 1 should be with identical angle rotation.As shown in Figure 5, can each blade 11 be contained in rotating ring 13 in the elongated slot 31 of rotating ring by means of lever arm assembly 33 by using, propeller regulating mechanism 9 can reach above-mentioned design standard.
With particular reference to Fig. 6, each lever arm assembly 33 comprises: pin 35, and it has the main body 37 with first end 39 and second end 41; And lever arm 43, its second end 41 from the main body 37 of pin 35 vertically extends.Each blade 11 is connected via the end of axle 45 with one of a plurality of lever arms 43.The main body 37 of the pin 35 of each lever arm assembly 33 is configured to be positioned at the elongated slot 31 of rotating ring 13, thereby first end 39 of pin 35 is extended in the elongated slot 31.When rotating ring 13 rotations, the identical angle of each blade 11 rotations.
, and continue referring to figs. 1 to Fig. 6 to Figure 12 with reference to figure 7, propeller regulating mechanism 9 also comprises and is configured to gear rack driving mechanism 21 that one of a plurality of blades 11 are driven, sets up drive vane 47 thus.Gear rack driving mechanism 9 comprises gear 53 and driven tooth bar 57, and its middle gear 53 is connected with the slender axles 55 (with reference to figure 4) of drive vane 47.Driven tooth bar 57 comprise be configured to gear 53 on a plurality of teeth 59 of a plurality of teeth 61 engagement, thereby driven tooth bar 57 is operatively connected with gear 53.The end of driven tooth bar 57 is connected with the live axle 23 of power is provided by oil hydraulic cylinder 25.Oil hydraulic cylinder 25 is positioned at the housing 27 of shell 3 outsides that are arranged on compressor 1, so that oil hydraulic cylinder 25 is remained under the high temperature of the temperature of ratio piston compressor 1.Live axle 23 makes driven tooth bar 57 do linear motion, and this motion is changed into rotatablely moving of gear 53.Live axle 23 is connected with driven tooth bar 57 via the hole 63 that is arranged in the end wall covering plate 15.
During operation, live axle 23 makes driven tooth bar 57 do linear motion.This linear motion is changed into rotatablely moving of gear 53, thereby makes drive vane 47 rotations.Because the pin 35 of lever arm assembly 33 is positioned in the elongated slot 31 of rotating ring 13, so drive vane 47 transfers torque on the rotating ring 13.Therefore, as Fig. 8 and shown in Figure 9, moment of torsion is passed on other blade 11.More particularly, along with drive vane 47 rotation, the pin 35 of lever arm assembly 33 moves the elongated slot 31 of rotating ring 13 in, thereby makes that the pin 35 of lever arm assembly 33 of other blade 11 is mobile in their grooves separately of rotating ring 13.This makes each blade 11 synchronously with identical angle change angular orientation separately.Therefore, drive vane 47 is configured to make rotating ring 13 rotations to regulate the angular orientation of a plurality of blades 11 by means of gear rack driving mechanism 21.
Though have most practicability and most preferred embodiment to describe the present invention in detail for exemplary purposes based on being considered to, but should be appreciated that, describing these details only is for illustrative purposes, and the invention is not restricted to disclosed embodiment, on the contrary, the intent of the present invention is to contain modification and the equivalent in the spirit and scope that fall into appended claims.For example, should be appreciated that the present invention can expect, within the bounds of possibility, one or more features of any embodiment can with one or more characteristics combination of any other embodiment.
Claims (20)
1. device that the air-intake guide vane of compressor is regulated comprises:
Ring, it has a plurality of grooves of opening around its circle spacing;
A plurality of lever arm assemblies, each lever arm assembly comprises pin and lever arm, described pin comprises the main body with first end and second end, described lever arm vertically extends from described second end of the main body of described pin, the pin structure of each lever arm assembly is the respective grooves that is arranged in described a plurality of grooves, thereby described first end of described pin is extended in the described groove;
A plurality of blades, each vanes is connected with the end of one of described a plurality of lever arms by axle; And
The gear rack driving mechanism comprises:
Gear, it is connected with the described axle of one of described a plurality of blades, thereby sets up drive vane; And
Driven tooth bar, it is connected with described operated gear,
Wherein, described drive vane is configured to make described ring rotation by described gear rack driving mechanism, thereby regulates the angular orientation of described a plurality of blades.
2. the device that the air-intake guide vane of compressor is regulated according to claim 1, wherein,
Described driven tooth bar is connected with live axle.
3. the device that the air-intake guide vane of compressor is regulated according to claim 2, wherein,
Described live axle provides power to drive described driven tooth bar by oil hydraulic cylinder.
4. the device that the air-intake guide vane of compressor is regulated according to claim 3, wherein,
Described oil hydraulic cylinder is positioned at the outside of described compressor.
5. the device that the air-intake guide vane of compressor is regulated according to claim 1, wherein,
Described device is kept apart by the flow path of end wall covering plate and described compressor.
6. the device that the air-intake guide vane of compressor is regulated according to claim 5, wherein,
In the axial direction described ring is limited in the described compressor by end wall and described end wall covering plate.
7. the device that the air-intake guide vane of compressor is regulated according to claim 1, wherein,
When described drive vane rotated described ring by described gear rack driving mechanism, described a plurality of blades all rotated to identical angle, thereby regulate the angular orientation of described a plurality of blades.
8. compressor comprises:
Shell;
Rotor, it comprises axle and the impeller that is positioned at described shell; And
Propeller regulating mechanism, it is positioned at described shell and around described rotor, described propeller regulating mechanism comprises:
Ring, it has a plurality of grooves of opening around its circle spacing;
A plurality of lever arm assemblies, each lever arm assembly has pin and lever arm, described pin comprises the main body with first end and second end, described lever arm vertically extends from described second end of the main body of described pin, the pin structure of each lever arm assembly is the respective grooves that is arranged in described a plurality of grooves, thereby described first end of described pin is extended in the described groove;
A plurality of blades, each vanes is connected with the end of one of described a plurality of lever arms by axle; And
The gear rack driving mechanism, it comprises:
Gear, it is connected with the described axle of one of described a plurality of blades, thereby sets up drive vane; And
Driven tooth bar, it is connected with described operated gear,
Wherein, described drive vane is configured to make described ring rotation by described gear rack driving mechanism, thereby regulates the angular orientation of described a plurality of blades.
9. compressor according to claim 8, wherein,
Described driven tooth bar is connected with live axle.
10. compressor according to claim 9, wherein,
Described live axle provides power to drive described driven tooth bar by oil hydraulic cylinder.
11. compressor according to claim 10, wherein,
Described oil hydraulic cylinder is positioned at the housing of the housing exterior that is arranged on described compressor.
12. compressor according to claim 8, wherein,
Described propeller regulating mechanism is kept apart by the flow path of end wall covering plate and described compressor.
13. compressor according to claim 8, wherein,
In the axial direction described ring is limited in the described compressor by end wall and described end wall covering plate.
14. compressor according to claim 8, wherein,
When described drive vane rotated described ring by described gear rack driving mechanism, described a plurality of blades all rotated to identical angle, thereby regulate the angular orientation of described a plurality of blades.
15. the propeller regulating mechanism of a compressor comprises:
Ring: and
A plurality of blades, its circumference around described ring pivots and installs, wherein,
One of described a plurality of blades are drive vane, and described drive vane is configured to make described ring rotation by means of the gear rack driving mechanism, thereby regulate the angular orientation of described a plurality of blades.
16. propeller regulating mechanism according to claim 15, wherein,
Described ring comprises a plurality of grooves of opening around its circle spacing.
17. propeller regulating mechanism according to claim 16 also comprises:
A plurality of lever arm assemblies, each lever arm assembly comprises pin and lever arm, described pin has the main body with first end and second end, described lever arm vertically extends from described second end of the main body of described pin, the pin structure of each lever arm assembly is the respective grooves that is arranged in described a plurality of grooves, thereby described first end of described pin is extended in the described groove.
18. propeller regulating mechanism according to claim 17, wherein,
Described a plurality of blade is connected with the end of one of described a plurality of lever arms via axle respectively.
19. propeller regulating mechanism according to claim 15, wherein,
Described gear rack driving mechanism comprises:
Gear, it is connected with the axle of one of described a plurality of blades, thereby sets up drive vane; And
Driven tooth bar, it is connected with described operated gear.
20. propeller regulating mechanism according to claim 8, wherein,
Described driven tooth bar is connected with live axle, and described live axle provides power to drive described driven tooth bar by oil hydraulic cylinder.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US92271307P | 2007-04-10 | 2007-04-10 | |
| US60/922,713 | 2007-04-10 | ||
| PCT/US2008/059736 WO2008124758A1 (en) | 2007-04-10 | 2008-04-09 | Centrifugal compressor having adjustable inlet guide vanes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101743379A true CN101743379A (en) | 2010-06-16 |
Family
ID=39831410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880011398A Pending CN101743379A (en) | 2007-04-10 | 2008-04-09 | Centrifugal compressor having adjustable inlet guide vanes |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100172745A1 (en) |
| EP (1) | EP2165047A1 (en) |
| JP (1) | JP2010523898A (en) |
| CN (1) | CN101743379A (en) |
| WO (1) | WO2008124758A1 (en) |
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- 2008-04-09 WO PCT/US2008/059736 patent/WO2008124758A1/en active Application Filing
- 2008-04-09 JP JP2010503175A patent/JP2010523898A/en active Pending
- 2008-04-09 CN CN200880011398A patent/CN101743379A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102230481A (en) * | 2011-06-17 | 2011-11-02 | 无锡杰尔压缩机有限公司 | Built-in motor-driven push rod |
| US9556883B2 (en) | 2013-11-01 | 2017-01-31 | Industrial Technology Research Institute | Inlet guide vane device |
| CN107075967A (en) * | 2014-09-23 | 2017-08-18 | 博格华纳公司 | Turbocharger with integrated form actuator |
| CN107075967B (en) * | 2014-09-23 | 2019-10-18 | 博格华纳公司 | Turbocharger with integrated form actuator |
| CN104314660A (en) * | 2014-10-23 | 2015-01-28 | 常州机电职业技术学院 | Electronically-controlled variable-flow engine cooling pump |
| CN109690027A (en) * | 2016-09-08 | 2019-04-26 | 赛峰直升机发动机 | A kind of device for by multi-layer piezoelectric actuator control inlet guide vane |
| CN109690027B (en) * | 2016-09-08 | 2021-11-30 | 赛峰直升机发动机 | Device for controlling inlet guide vane by multilayer piezoelectric actuator |
| CN108757083A (en) * | 2018-05-25 | 2018-11-06 | 温州职业技术学院 | A kind of variable valve actuator for air of hydraulic-driven |
| CN108757083B (en) * | 2018-05-25 | 2020-01-10 | 温州职业技术学院 | Hydraulically-driven variable valve mechanism |
| CN109210012A (en) * | 2018-09-30 | 2019-01-15 | 武汉格瑞拓机械有限公司 | A kind of symmetric double crank space connecting-rod is used for radially-arranged multi-axis turning mechanism |
| CN114109915A (en) * | 2020-08-31 | 2022-03-01 | 复盛股份有限公司 | Air flow regulating device of fluid machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100172745A1 (en) | 2010-07-08 |
| WO2008124758A1 (en) | 2008-10-16 |
| EP2165047A1 (en) | 2010-03-24 |
| JP2010523898A (en) | 2010-07-15 |
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