CN101614204A - The liquid conveyer of band blade - Google Patents
The liquid conveyer of band blade Download PDFInfo
- Publication number
- CN101614204A CN101614204A CN200810215477A CN200810215477A CN101614204A CN 101614204 A CN101614204 A CN 101614204A CN 200810215477 A CN200810215477 A CN 200810215477A CN 200810215477 A CN200810215477 A CN 200810215477A CN 101614204 A CN101614204 A CN 101614204A
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- CN
- China
- Prior art keywords
- blade
- stator
- rotor
- zone
- chamber
- 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.)
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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
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F04C2/3442—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
- F04C15/0049—Equalization of pressure pulses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/13—Noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/14—Pulsations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of liquid conveyer with blade, it comprises stator and rotor, described rotor is installed in the inner region of described stator with centrifugation, tangent and be provided with one group of at least four blade with the inner region of described stator, described blade slides in radial cavities and flexibly keeps in touch with described stator, so that allow liquid between inlet opening and delivery outlet, to transmit, annular volume between wherein said stator and the described rotor is divided into suction chamber, transfer chamber, discharge chamber and medial compartment, described suction chamber is connected to described inlet opening, described discharge chamber is connected to described delivery outlet, described medial compartment is around the tangent zone between described stator and the described rotor, wherein, each blade is provided with at least one through hole, to allow being communicated with in the zone of described blade upstream and the formation between the zone in described blade downstream of described volume in annular volume.
Description
Technical field
The present invention relates to a kind of liquid conveyer, especially with the pump or the measuring system of blade with blade.
Background technique
This device is for being well-known for those skilled in the art, and generally include the stator of hollow cylinder form and cylindrical substantially rotor, this rotor is installed in prejudicially in the inner region of described stator and is tangent with the inner region of stator.
The stator of these devices is typically provided with one group of portable radial blade, preferred at least four portable radial blades, and described blade keeps contacting so that liquid transmits between inlet opening and delivery outlet with the inwall of described stator with elastic type.
In rotor, be provided with cavity, its objective is blade is slided between the retracted position of described rotor and working position in described cavity.Described blade can be subjected to the effect of Returnning spring, and/or the speed of described rotor during for about 400 to 1500 rev/mins the independent effect by centrifugal force be pressed against on the described stator with being stabilized.
In the device that has the above-mentioned type blade, annular volume between described rotor and the described stator is divided into suction chamber, transfer chamber, discharge chamber and medial compartment usually, described suction chamber is connected on the described inlet opening, described discharge chamber is connected on the described delivery outlet, and described medial compartment is around described tangent (or pseudo-tangent) zone.
The radial cross section of described suction chamber increases gradually from described inlet opening.
Described transfer chamber is defined by two substantially concentric cylindrical sections, makes that the radial cross section of described transfer chamber is constant.
The radial cross section of described discharge chamber reduces gradually up to described delivery outlet.
With regard to described medial compartment, it is defined by two barrel surfaces substantially parallel and that lean on extremely closely each other.Therefore, the volume of described medial compartment is approximately zero or can ignores fully.
The working method of the device of this band blade is as follows:
In the process of rotor rotation, because the special cross-section of described suction chamber, make the volume that is connected with described inlet opening increase gradually and produce pressure drop thus along the mobile meeting of the loop direction of the liquid that remains to be transmitted, cause liquid to be inhaled near the blade of inlet opening.
Described blade goes out the area of low pressure from the remarkable higher region separation of pressure.
Simultaneously, because the special cross-section of described discharge chamber, moving of the blade of approaching described delivery outlet makes the volume that is connected with described delivery outlet reduce gradually and produces superpressure thus, causes liquid to be discharged from.
Therefore, in the process of described blade rotation, the pressure between the different volume areas between described stator and the described rotor is obviously different.
Therefore, in order to make described device proper functioning, must guarantee that these zoness of different relative to each other seal, prevent that thus circulating liquid from flowing between free end that defines these regional blades and described stator owing to its incompressible characteristic, this can not accomplish in practice.
In fact, only making the curved surface that defines different chamber of described rotor and described stator, to such an extent as to do not having to obtain such sealing under the situation of irregular gradual transition between these chambers in extremely accurate mode.
But, can't obtain this perfect geometrical shape with reasonable cost in the practice, therefore between different chamber, there is discontinuous portion usually.
Therefore, in the transition region between different chamber, especially at transfer chamber with discharge in the zone between the chamber, small amount of recycled liquid can flow through between the free end of blade and described stator, and this is inevitable.
Because described circulating liquid is incompressible, this can cause strong turbulent flow so that the pressure homogenizing also can cause cavitation around the end of blade.
These phenomenons need significantly to increase the power of control motor, especially under the situation of vane pump, these phenomenons produce the vibration of the audible frequency that spreads all over whole device in circulating liquid, described audible frequency is corresponding to the product of the speed and the lobe numbers of motor.
This causes sending the serious noise that is superimposed with basic noise, and described basic noise is similarly and described cavitation and/or the relevant audible frequency of friction.
Curve shown in Figure 6 has shown the variation in pressure when each vanes is crossed transition region between described transfer chamber and the described discharge chamber.
From described curve as can be known, the variation in pressure of this degree is approximately 3.1 crust, and this is very large.
Variation in pressure when crossing transition region between the different chamber in order to overcome these defectives and to reduce vanes has proposed to be provided with the stationary axle of flat pieces in the middle body of stator, can allow the seepage of circulating liquid process in this formation in this way.
Another kind may be the processing groove that covers, especially the beans shape groove at described device, and this provides the seepage that allows the circulating liquid process equally.
Yet the different modes of these balance pressures is proved to be and is not entirely satisfactory.
Summary of the invention
The purpose of this invention is to provide a kind of liquid conveyer that can overcome the band blade of above-mentioned defective.
According to the present invention, this device is characterised in that, each blade is provided with at least one through hole, be communicated with so that between two zones of the annular volume between stator and the rotor, form, one of them zone is positioned at described blade upstream along the loop direction of the fluid that remains to be transmitted, and another zone is positioned at described blade downstream along the loop direction of the fluid that remains to be transmitted.
The seepage of Xing Chenging makes that at blade at suction chamber with discharge in the process that moves between the chamber pressure balance gradually, therefore the pressure reduction at the transition point place between transfer chamber and described discharge chamber significantly reduces thus.
Verified, the reduction of this pressure reduction can be eliminated the destructive phenomenon that causes owing to the discontinuity in this geometrical shape that must occur to a great extent.
According to preferred feature of the present invention, the described through hole that makes pressure be able to balance is configured to, make described through hole and to center in the volume that is used in the zone of described transfer chamber between stator and the rotor at transfer chamber, and in the rotor cavity of in other zones, withdrawing.
With regard to this structure, only work in the zone in the described hole of needs in the described hole of penetrating blade, and intercepted in the zone (near described inlet opening and delivery outlet) of the normal function of described device may be damaged in described hole.
According to the present invention, advantageously each blade is provided with at least two through holes, and described through hole is arranged on the axis parallel with the rotor spin axis in a mode that is positioned under another.
In the zone of the described through hole of needs, be positioned near the described rotor outer wall through hole and make and on the both sides of described blade, realize best pressure balance, and therefore with regard to blade in the good location that moves the described blade of speech realization in the described rotor cavity.
Curve shown in Figure 7 has shown the variation in pressure when blade according to the present invention is provided with each blade in the device of two through holes and passes transition region between described transfer chamber and the described discharge chamber.
According to described curve as can be known, the existence of these through holes makes pressure herein become 0.3 crust from 3.1 crust.
Therefore, the described hole of passing these blades according to the present invention is highly beneficial aspect the hydraulic pressure, to such an extent as to described hole can make the mobile balance that is able to of the volume inside between described stator and the described rotor.
Same definite, remarkable progress has been brought in the aspect that makes a noise that exists in these holes.
Description of drawings
The nonrestrictive accompanying drawing of following reference is described the feature of liquid conveyer of the band blade of the object of the invention in more detail, wherein:
Fig. 1 to 4 shows the schematic representation of the working method of described device,
Fig. 5 is the schematic representation of blade,
The curve of Fig. 6 has shown the variation in pressure when each vanes is crossed transfer chamber and discharge transition region between the chamber of prior-art devices,
The curve of Fig. 7 has shown the variation in pressure when blade according to the present invention is provided with each blade in the device of two through holes and passes transfer chamber and discharge transition region between the chamber.
Embodiment
According to Fig. 1 to 4, described conveying means comprises the stator 1 of hollow round column form, and the rotor 2 of substantial cylindrical is installed in the described stator 1, makes that along clock pointer direction described rotor 2 around axis xx ' rotation the time as shown by arrows be movably.
Described rotor 2 is installed on the described stator 1 with eccentric manner, thereby defines the annular volume 3 that radial cross section changes with described stator 1, and this annular volume 3 allows liquid to transmit between inlet opening 4 and delivery outlet 5 in the mode of describing in detail below.
According to Fig. 1 to 4, described rotor 2 is provided with one group of blade 7 that has graphite and teflon ground, described blade 7 is installed into and can slides in radial cavities 8, and described cavity 8 is flexibly kept in touch by even spaced apart and inwall by unshowned mode of accompanying drawing and described stator 1.
Each blade 7 is provided with through hole 9, and the effect of described through hole 9 also will be described in greater detail below.
Device shown in Fig. 1 to 4 is provided with six blades 7.Certainly, this structure of selecting with way of example and not limiting the present invention in any way.
According to Fig. 1 to 4, the annular volume 3 that is included between described stator 1 and the described rotor 2 is divided into suction chamber I, transfer chamber II and discharges chamber III along the loop direction of the liquid that remains to be transmitted (time kind pointer direction), described suction chamber I is connected to inlet opening 4, and described discharge chamber III is connected to delivery outlet 5.
Described delivery outlet 5 is connected by medial compartment IV in itself with described inlet opening 4.
4 beginnings increase the described radial cross section of described suction chamber I gradually from the inlet opening.
Described transfer chamber II is fixed by two concentric circle segment limits, makes that the radial cross section of described transfer chamber II is constant.
The described radial cross section of described discharge chamber III reduces gradually up to described delivery outlet 5.
With regard to described medial compartment IV, it is defined by two parallel circles that lean on extremely closely each other, makes the initial approximation of volume of described medial compartment IV can be counted as zero.
Because manufacture cost, different chamber I, II, III, the transition between the IV, the transition between especially described transfer chamber II and the described discharge chamber III are not strict progressive but discontinuous portion by 10 expressions of the reference character among the figure is arranged.
As mentioned above, these discontinuous portions source that is destructive phenomenons.
According to Fig. 1, the part that shows with light areas of the doughnut 3 that described stator 1 and described rotor 2 are separated is under relative low pressure or swabbing pressure, and the part that partly shows with dark-shaded of described volume 3 is under elevated pressures or head pressure.
By blade 7
1Area of low pressure around the described inlet opening 4 is separated from the high-pressure area around the described delivery outlet.
According to Fig. 1, the blade 7 that described high-pressure area and described area of low pressure are separated
1Transition region between described suction chamber I and described transfer chamber II.
According to Fig. 2 and 3, described blade 7
1In described transfer chamber II, be moved, be positioned near described discontinuous 10 the transition region between described transfer chamber II and the described discharge chamber III subsequently.
In described moving process, described blade 7
1 Hole 9 between described high-pressure area and described area of low pressure, form pressure balance, thereby limit the middle pressure zone that shows with grey, this zone is by blade 7
2, this blade 7
2Movement direction along the fluid that remains to be transmitted is positioned at described blade 7
1Just in time downstream.
According to Fig. 4, described blade 7
1Be positioned at discontinuous 10 right side.
In described moving process, by blade 7
1With 7
1 Hole 9 produce the dual-pressure balances, can overcome thus because the defective (turbulent flow, hole make a noise) that the unexpected variation of pressure causes, described defective is inevitable when not having hole 9.
According to Fig. 5, each blade 7 is provided with two through holes 9
1, 9
2, described through hole is arranged on the axis yy ' parallel with the spin axis xx ' of described rotor 2 in mode one on the other.
Claims (3)
1. liquid conveyer with blade, especially pump, motor or measuring system, described liquid conveyer comprises the stator (1) of hollow cylinder form and the rotor (2) of substantial cylindrical, described rotor (2) is installed in the inner region of described stator (1) with centrifugation, tangent and be provided with one group of at least four blade (7) with the described inner region of described stator (1), described blade (7) slides in radial cavities (8) and flexibly keeps in touch with described stator (1), so that allow liquid between inlet opening (4) and delivery outlet (5), to transmit, annular volume (3) between wherein said stator (1) and the described rotor (2) is further divided into suction chamber (I), transfer chamber (II), discharge chamber (III) and medial compartment (IV), described suction chamber (I) is connected to described inlet opening (4), described discharge chamber (III) is connected to described delivery outlet (5), described medial compartment (IV) is characterized in that around the tangent zone between described stator (1) and the described rotor (2):
Each blade (7) is respectively equipped with at least one through hole (9), is communicated with so that form between the zone in the zone that is positioned at this blade (7) upstream with regard to the loop direction of waiting to transmit fluid of described annular volume (3) and downstream.
2. device according to claim 1 is characterized in that:
Described through hole (9) is oriented to, make described through hole (9) be used at described transfer chamber (II) with in the zone of described transfer chamber (II) in the volume between described stator (1) and the described rotor (2), and in other zone, be retracted back in the cavity (8) of described rotor (2).
3. according to each described device in claim 1 and 2, it is characterized in that:
Each blade (7) is respectively equipped with at least two through holes (9
1, 9
2), described through hole is arranged on the axis parallel with the spin axis of described rotor (2) in a mode that is positioned under another.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0854311 | 2008-06-27 | ||
| FR0854311 | 2008-06-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101614204A true CN101614204A (en) | 2009-12-30 |
| CN101614204B CN101614204B (en) | 2011-07-20 |
Family
ID=40351593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810215477 Expired - Fee Related CN101614204B (en) | 2008-06-27 | 2008-09-10 | Liquid conveyer with blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101614204B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251962A (en) * | 2011-08-18 | 2011-11-23 | 肖义堃 | Blade pump |
| US20170122315A1 (en) * | 2015-10-29 | 2017-05-04 | Ford Global Technologies, Llc | Vane oil pump |
| CN107288870A (en) * | 2017-08-28 | 2017-10-24 | 马来勋 | Hydraulic power unit and its pump |
| CN107327401A (en) * | 2017-08-28 | 2017-11-07 | 马来勋 | Pump and the hydraulic power assembly using the pump |
| CN107689304A (en) * | 2017-08-29 | 2018-02-13 | 河南机电职业学院 | A kind of hydraulic actuating mechanism |
| CN111054230A (en) * | 2020-01-07 | 2020-04-24 | 上海远安流体设备科技有限公司 | Impeller and low-noise emulsification pump |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2345739Y (en) * | 1998-09-30 | 1999-10-27 | 上海液压件厂 | Pin-type vane pump |
| KR100356858B1 (en) * | 2000-09-05 | 2002-10-18 | 현대자동차주식회사 | An automotive vane pump for generating anti-centrifugal force |
| DE10239364A1 (en) * | 2002-08-28 | 2004-03-18 | Dr.Ing.H.C. F. Porsche Ag | Device for controlling the pump output of a lubricant pump for an internal combustion engine |
| CN2617957Y (en) * | 2003-05-23 | 2004-05-26 | 山东博山齐鲁油泵厂 | Blade petrol filling pump on board |
| JP2005042674A (en) * | 2003-07-25 | 2005-02-17 | Unisia Jkc Steering System Co Ltd | Variable displacement pump |
-
2008
- 2008-09-10 CN CN 200810215477 patent/CN101614204B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251962A (en) * | 2011-08-18 | 2011-11-23 | 肖义堃 | Blade pump |
| US20170122315A1 (en) * | 2015-10-29 | 2017-05-04 | Ford Global Technologies, Llc | Vane oil pump |
| US9874210B2 (en) * | 2015-10-29 | 2018-01-23 | Ford Global Technologies, Llc | Vane oil pump |
| CN107288870A (en) * | 2017-08-28 | 2017-10-24 | 马来勋 | Hydraulic power unit and its pump |
| CN107327401A (en) * | 2017-08-28 | 2017-11-07 | 马来勋 | Pump and the hydraulic power assembly using the pump |
| CN107288870B (en) * | 2017-08-28 | 2019-01-22 | 大连海密梯克泵业有限公司 | Hydraulic power unit and its pump |
| CN107327401B (en) * | 2017-08-28 | 2019-07-12 | 北京华德力士乐液压气动设备有限公司 | Pump and the hydraulic power assembly for using the pump |
| CN107689304A (en) * | 2017-08-29 | 2018-02-13 | 河南机电职业学院 | A kind of hydraulic actuating mechanism |
| CN107689304B (en) * | 2017-08-29 | 2019-01-08 | 河南机电职业学院 | A kind of hydraulic actuating mechanism |
| CN111054230A (en) * | 2020-01-07 | 2020-04-24 | 上海远安流体设备科技有限公司 | Impeller and low-noise emulsification pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101614204B (en) | 2011-07-20 |
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Granted publication date: 20110720 Termination date: 20170910 |
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