CN101968053B - Variable displacement pump having rotating cam ring - Google Patents
Variable displacement pump having rotating cam ring Download PDFInfo
- Publication number
- CN101968053B CN101968053B CN2009101737372A CN200910173737A CN101968053B CN 101968053 B CN101968053 B CN 101968053B CN 2009101737372 A CN2009101737372 A CN 2009101737372A CN 200910173737 A CN200910173737 A CN 200910173737A CN 101968053 B CN101968053 B CN 101968053B
- Authority
- CN
- China
- Prior art keywords
- fuel pump
- lining
- pump according
- cam
- housing
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
- F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
- F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
- F04C14/226—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam by pivoting the cam around an eccentric axis
-
- 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
-
- 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
-
- 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
-
- 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
- F04C2220/00—Application
- F04C2220/24—Application for metering throughflow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
- F05C2203/0804—Non-oxide ceramics
- F05C2203/0813—Carbides
- F05C2203/0826—Carbides of wolfram, e.g. tungsten carbide
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Fuel-Injection Apparatus (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Friction Gearing (AREA)
Abstract
The invention relates to a variable displacement pump having rotating cam ring. Vane pump (10) mechanical losses are reduced by removing vane friction losses and replacing them with lower magnitude journal bearing fluid film viscous drag losses. A freely rotating cam ring (70) is supported by a journal bearing (80). A relatively low sliding velocity is imposed between the cam ring and the vanes (26). This permits the use of less expensive and less brittle materials in the pump by allowing the pump to operate at much higher speeds without concern for exceeding vane tip velocity limits.
Description
The application be the applying date be March 27 in 2002 day, be called the dividing an application of No. 02809627.4 Chinese invention patent application of " variable displacement pump with rotating cam ring ".
Technical field
The present invention relates to a kind of pump, particularly carry out the high speed rotodynamic pump that the regulation and control aspect has specific use in a kind of fuel pump that is found in air breathing engine.
Background technique
Usually vane pump uses one or more fixing or non rotatable cam rings.The radially outer edge of blade slides along cam ring.But cam ring can not freely rotate relative to housing.Fixing cam ring is installed on the pump case of a fixed displacement pump rigidly, and perhaps cam ring moves or sway to provide the variable-displacement performance.Like this, as is known to the person skilled in the art, the positive-displacement pump of these types comprises a stator or has the housing of entrance and exit, and the rotor axis that relatively is contained in pump chamber of its position is offset along diameter usually.A plurality of conducting element or blades in circumferencial direction interval setting and radially extension stretch out from rotor.Due to rotor axis skew and parallel with the housing cavity axis, in rotary course, the offset relationship of axle causes that blade relative to rotor radially inwardly and outwards move.
The outer rim of blade contact cam ring is contact force on each blade of 6 to 12 and act on common quantity, produces surface friction drag on cam ring.These resistances are converted into mechanical loss, have reduced the whole efficiency of pump.In many application, these mechanical resistance losses are considerably beyond the required theoretical power (horse-power) of pumping liquid.
For instance, when being used for air breathing engine environment lower time, due to high speed and the load-factor that these vane pumps run into, vane pump will adopt high durability and wear-resisting material to make usually.The general cost of production of part made from these materials is very high, and can bring very high fragility.For example, Tungsten carbite is widely used in the vane pump parts on air breathing engine as a kind of preferred material.Tungsten carbite is a kind of stone material, can find its application-specific on blade, cam ring and side plate.But for instance, the cost of Tungsten carbite is similar to two sesquialters of the cost of steel, and any crackle and over-stress can cause breaks and relevant issues.In addition, Tungsten carbite is approximately 1.86 to the weight ratio of steel, makes weight become a kind of important consideration item to this type of application.Therefore, although usually high durability and wear resistance can make Tungsten carbite satisfy the requirement of vane pump high speed and load-factor, its weight, cost, and the high fragility that is associated also will cause the significantly increase of whole cost.
Even use special material such as Tungsten carbite, the rotational speed of vane pump also can be restricted at present.This restriction is relevant with respect to the high Sliding velocity of cam ring with the blade outer rim.Even if use Tungsten carbite in vane pump comprehensively, the high speed pump running that surpasses 12000 rev/mins is still very difficult.
The efficient that improves pump is very important, and the efficient that improves is in conjunction with the reliability that improves and to use the ability of vane pump in other is used be also desired.
Summary of the invention
The invention provides a kind of improved gas turbine fuel pump, it has shown the efficient and the reliability that improve.
Specifically, this gas turbine fuel pump comprises a housing, and this housing has a pump chamber, and the entrance and exit that communicates with this pump chamber liquid stream.One is contained in the rotor in pump chamber, and one around rotor and the cam member that rotates freely of housing relatively.
One sliding bearing is arranged between cam member and housing, to reduce the mechanical loss in the pump operation process.
This sliding bearing is the continuous circular shape passage that is defined between cam member and housing.
This rotor comprises the blade that arranges along the circle spacing, and its radially outer edge contacts with cam member.
This pump also comprises a cam lining, is pivotally secured in housing, with the throw of eccentric between selectively changing cam member and rotor.
This gas turbine fuel pump is than not using the traditional blades pump that rotates freely cam member to show the efficient that significantly improves.
Because some selected parts can be made with serviceability appropriateness, the lower material of cost, this fuel pump also shows higher reliability under the condition that has reduced cost.
The raising of efficient can also make pump less compacter, and this is particularly useful for the very high application of some size requirement.
The present invention also has other benefit and advantage, by following detailed description, and to those skilled in the art will be clearly.
Description of drawings
Fig. 1 is the three-dimensional exploded view of a preferred embodiment of fluid pump.
Fig. 2 is the sectional drawing by the pump shown in Figure 1 after assembling.
Fig. 3 is the longitudinal sectional drawing by the pump after assembling.
Fig. 4 is the sectional drawing similar to Fig. 2, shows a variable displacement pump, and its support ring is positioned at the second place.
Embodiment
As shown in the figure, pump assembly 10 comprises a housing 12, and its inside is limited with a pump chamber 14.Rotatably hold a rotor 20 in the chamber, rotor is fixed on an axle 22, so that rotor rotates in the chamber.Sub-periphery or the peripheral intervals of rotating is provided with a series of grooves 24 that radially extend, and accommodates movably fin or blade 26 in groove, and the radially outer edge of these fins or blade extends out from rotor periphery.Blade quantity can change, and for example, nine blades has been shown in Fig. 2 embodiment, but, can adopt the blade of varying number and not break away from the scope of the invention and purpose.Preferably as shown in Figure 2, the spin axis of axle 22 and rotor 20 comes mark with numeral 30.When rotating in the housing chamber due to rotor, selected blade (the right side blade shown in Fig. 2) not as rest blade (the left side blade in Fig. 2) from the rotor periphery same large degree that stretches out.When blade rotated in the housing chamber with rotor, pump chamber was limited by the space between each blade, and provides fluid positive discharge capacity.
Continuation is rigidly fixed in housing with reference to figure 2, one spacer rings 40, and is arranged on the peritrochanteric position adjacent with housing cavity wall interval.This spacer ring has a flat board or face cam and rolls and roll over surface 42, and holds a stop pin 44.This pin is resisted against the cam lining 50 that is arranged on un-rotatably rotor periphery as pivot.This lining is provided with the first and second circle teats or promotes surface 52,54, usually is arranged on the position relative with stop pin.The circle teat matches with the first and second pushing components 56,58, consists of the device that changes cam lining 50 positions.This change device is stroke or the discharge capacity of selectivity conversion pump in the prior art manner known.For example, each driving member assembly comprises a piston 60, biased member such as spring 62, and a closure member 64, thus response puts on the pressure of piston back, makes the promotion circle teat selectivity motion of cam lining.This selectivity promotes to make the cam lining to be essentially plane or dull and stereotyped surface 66 rollings near the spacer ring internal surface pin 44.The central point of cam lining is rectilinear translation preferably, but not camber line moves, the pressure surge that may cause in addition to be limited in the component sealing district.By this way, when one of driving member assembly is activated and during actuating cam lining (Fig. 2), the center selectivity off-axis of cam lining and the spin axis 30 of rotor.Other details of cam lining, promotion surface and pushing component are normally known for a person skilled in the art, therefore, believe at this to there is no need to be discussed further.
Be contained in the rotating cam spare in the cam lining or encircle 70 and have a smooth inner circle wall 72, it contacts with outer rim from extended each blade 26 of rotor.It is freely to rotate in cam lining 50 that cam ring arranges smooth periphery wall 74.Particularly, a sliding bearing 80 supports the cam ring 70 of rotation in lining.This sliding bearing is full of pump liquid, is jet fuel herein, consists of a static pressure or fluid dynamic, or static pressure/fluid dynamic combined bearing.Although owing to not having member to connect cam ring with rotor, cam ring rotor relatively rotates freely, the frictional force that produces between blade outer rim and rotating cam ring 70 makes cam ring to rotate with the approximately uniform speed of rotor.Can find out, the rotating speed of ring perhaps even a little more than rotor speed, but owing to being to support in fluid film bearing and running, makes this cam ring have much lower viscous resistance a little less than rotor speed.The high mechanical loss that the frictional loss that contacts with retaining ring on every side due to blade that this low viscous resistance of cam ring has replaced that known vane pump exists causes.Due to contact the mechanical loss that the resistance that produce be converted into the whole efficiency that reduce pump of blade with cam ring.Cam ring supports alone by the sliding bearing 80 in the cam lining.This sliding bearing is a continuous passage.In other words, here not as roller bearing, pin or other similar interconnective member, these members can be cut down the beneficial effect that the low viscous resistance due to cam ring obtains.For example, the overflow ball bearing will can not show the efficient of the improvement that is provided by this sliding bearing, particularly can be advantageously with the sliding bearing of pump liquid as liquid-bearing.
In former application, these mechanical resistance losses can substantially exceed the mechanical efficiency of its pumping liquid in the operation mode of many jet engine fuel pumps.As a result, due to high speed and the load factor of these vane pumps, must use the material with high durability and wear resistance.Material weight and manufacture cost greatly increase, and these materials have also brought very serious fragility.The rotating speed of these pumps is also because the high Sliding velocity of the relative cam ring of blade is restricted.Even when using special material such as Tungsten carbite, pump running at a high speed for example surpasses 12,000 rev/mins, and is also very difficult.
These mechanical losss that caused by the friction between blade and cam ring by in the present invention very the viscous resistance loss of low degree replaced.This gives the credit to cam ring with the ability of rotor blade rotation.Between cam ring and blade, relatively low Sliding velocity causes and impels MANUFACTURER to use cheap in pump and the less material of fragility.This has stronger reliability, and allows pump to turn round with more speed, and need not consider to surpass the peripheral velocity limit.High running speed makes as reaching target flow conversely speaking, only needs less discharge capacity.In other words, less, a compacter pump just can provide the flow effect similar to former larger pump.This pump also has application area widely in various vane pump mechanism.
Fig. 3 illustrates in greater detail the entrance and exit of peritrochanteric, and entering, exporting of pump chamber is provided.The first and second plate bodys 90,92 are respectively equipped with opening 94,96.Blade by rotation offers fluid with energy.For example, jet fuel is drawn into the downstream use occasion that needs with the pressure that is enhanced.
As shown in Figure 4, two pushing components are pressurized not, so the cam lining does not have pivotable to change the stroke of vane pump.Also namely, this of Fig. 4 not flow locations can be compared with Fig. 2, and this figure cam lining 50 is around pin 44 pivotables, thereby the quadrant along the left side of pump has been determined a closing gap between cam lining and spacer ring 40, as shown in the figure.This provides the performance that obtains different displacements by the mode that changes cam lining position.
In preferred disposition, blade is still by durable hard material such as Tungsten carbite manufacturing.But, cam ring and side plate can be selected by low-cost durable material such as steel making, reducing weight and manufacture cost, and higher reliability can be arranged.It will be appreciated, of course, that if necessary, all members still can be used more expensive durable material such as Tungsten carbite manufacturing, and still can obtain to surpass the practical efficiency of aforementioned arrangements.By using jet fuel as the liquid that forms sliding bearing, some members of pump assembly are selected Tungsten carbite, and other member uses steel, makes its favourable part form advantage.This is to compare as hydrodynamic bearing fluid with using oil or similar hydraulic fluid, and all jet fuel oil parts all must adopt steel to make in the sort of situation, thereby has eliminated the chance of using Tungsten carbite and bringing favourable part.
The present invention is described in conjunction with the preferred embodiments.Obviously, by reading and the understanding to aforementioned detailed description, other people can modify and be flexible.Therefore, as long as it belongs to the scope of appended claims or its equivalent technologies, the present invention just should be interpreted as comprising all such modifications and accommodation.
Claims (33)
1. variable gas turbine fuel pump comprises:
One housing has a pump chamber, and an entrance and exit that communicates with described pump chamber liquid stream;
One rotor is contained in described pump chamber;
One cam member around described rotor, and can rotate freely by relatively described housing;
One cam lining radially is arranged between described cam member and described housing;
One pushing component matches with described cam lining in described housing, operably optionally to change pump delivery;
Spacer ring is arranged between described cam lining and described housing, and wherein said spacer ring comprises that one is the cam lining rolling surface on plane substantially, but makes the central point rectilinear translation of described cam lining; And
One sliding bearing is arranged between described cam member and described cam lining, to reduce the mechanical loss in described pump operation process.
2. fuel pump according to claim 1, wherein said cam member has a smooth inner circle wall, allows the relatively described cam member of described rotor to rotate freely.
3. fuel pump according to claim 1, wherein said sliding bearing is the continuous circular shape passage between described cam member and described cam lining.
4. fuel pump according to claim 3, wherein pump fuel is as bearing liquid.
5. fuel pump according to claim 1 also comprises the blade that combines movably with described rotor that arranges along the circle spacing.
6. fuel pump according to claim 1, wherein said sliding bearing is a hydrostatic bearing.
7. fuel pump according to claim 6, wherein pump fuel is as bearing liquid.
8. fuel pump according to claim 1, wherein said sliding bearing is a fluid motive bearing.
9. fuel pump according to claim 8, wherein pump fuel is as bearing liquid.
10. fuel pump according to claim 1, wherein said sliding bearing is one static pressure/fluid dynamic combined bearing.
11. fuel pump according to claim 10, wherein pump fuel is as bearing liquid.
12. fuel pump according to claim 1, wherein pump fuel is as bearing liquid.
13. fuel pump according to claim 1, the spin axis of described rotor is optionally departed from the center that wherein surrounds the cam lining of described cam member.
14. fuel pump according to claim 5, wherein said blade is made by Tungsten carbite.
15. fuel pump according to claim 14, wherein said cam member is made by the low durable material of cost.
16. fuel pump according to claim 1, wherein said cam member is made by the low durable material of cost.
17. fuel pump according to claim 1, wherein said pushing component comprise the first and second fluid power application pistons that are oppositely arranged.
18. fuel pump according to claim 17, wherein said piston on described cam lining with radially relative position place's motion of the cam lining rolling surface that basically is the plane.
19. a variable gas turbine fuel pump comprises:
One housing has a pump chamber, and an entrance and exit that communicates with described pump chamber liquid stream;
One rotor is contained in described pump chamber;
One cam member around described rotor, and can rotate freely by relatively described housing;
One cam lining radially is arranged between described cam member and described housing;
One pushing component matches with described cam lining in described housing operably, optionally changes the pump delivery of described housing cam lining, optionally to change pump delivery;
One is the cam lining rolling surface on plane substantially, is arranged between described cam lining and described housing, but makes the central point rectilinear translation of described cam lining; And
One sliding bearing is arranged between described cam member and described cam lining, to reduce the mechanical loss in described pump operation process.
20. a variable gas turbine fuel pump comprises:
One housing has a pump chamber, and an entrance and exit that communicates with described pump chamber liquid stream;
One rotor is contained in described pump chamber;
One cam member around described rotor, and can rotate freely by relatively described housing;
One cam lining radially is arranged between described cam member and described housing;
One pushing component matches with described cam lining in described housing, operably optionally to change pump delivery; And
One sliding bearing is arranged between described cam member and described cam lining, reducing the mechanical loss in described pump operation process,
Also comprise a spacer ring, described spacer ring radially is arranged between described cam lining and described housing and is fixed in described housing.
21. a fuel pump comprises:
One housing has a pump chamber, and an entrance and exit that communicates with described pump chamber liquid stream;
One rotor is contained in described pump chamber;
One cam lining is contained in described housing;
One pushing device matches with described cam lining operably, but the central point rectilinear translation that makes described cam lining optionally changing pump delivery,
Also comprise a spacer ring, described spacer ring radially is arranged between described cam lining and described housing and is fixed in described housing.
22. fuel pump according to claim 21 also comprises a cam member, described cam member is around described rotor, and can rotate relative to described housing.
23. fuel pump according to claim 22, wherein said cam member have a smooth inner circle wall, allow the relatively described cam member of described rotor to rotate freely.
24. fuel pump according to claim 22 also comprises a sliding bearing, is arranged between described cam member and described cam lining, to reduce the mechanical loss in described pump operation process.
25. fuel pump according to claim 24, wherein said sliding bearing are the continuous circular shape passage between described cam member and described cam lining.
26. fuel pump according to claim 24, wherein said sliding bearing are a hydrostatic bearing.
27. fuel pump according to claim 24, wherein said sliding bearing are a fluid motive bearing.
28. fuel pump according to claim 24, wherein said sliding bearing are one static pressure/fluid dynamic combined bearing.
29. fuel pump according to claim 21 also comprises the blade that combines movably with described rotor that arranges along the circle spacing.
30. fuel pump according to claim 21, wherein said spacer ring comprise that one is the surface on plane substantially, but make the central point rectilinear translation of described cam lining.
31. fuel pump according to claim 21, wherein said spacer ring comprise that one is the surface on plane substantially along its internal surface, the promotion of the described pushing device of described cam lining response and rolling on this surface.
32. fuel pump according to claim 31 comprises that also one makes described spacer ring and the interconnected stop pin of described cam lining.
33. fuel pump according to claim 32, wherein said spacer ring comprise that opposite side basic that is located at described stop pin is the surface on plane.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28163401P | 2001-04-05 | 2001-04-05 | |
| US60/281,634 | 2001-04-05 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028096274A Division CN100557244C (en) | 2001-04-05 | 2002-03-27 | Variable displacement pump with rotating cam ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101968053A CN101968053A (en) | 2011-02-09 |
| CN101968053B true CN101968053B (en) | 2013-06-19 |
Family
ID=23078142
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028096274A Expired - Fee Related CN100557244C (en) | 2001-04-05 | 2002-03-27 | Variable displacement pump with rotating cam ring |
| CN2009101737372A Expired - Fee Related CN101968053B (en) | 2001-04-05 | 2002-03-27 | Variable displacement pump having rotating cam ring |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028096274A Expired - Fee Related CN100557244C (en) | 2001-04-05 | 2002-03-27 | Variable displacement pump with rotating cam ring |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1384005B1 (en) |
| JP (1) | JP4215515B2 (en) |
| KR (1) | KR20040004577A (en) |
| CN (2) | CN100557244C (en) |
| AT (1) | ATE310164T1 (en) |
| CA (2) | CA2443367C (en) |
| DE (1) | DE60207401T2 (en) |
| WO (1) | WO2002081921A1 (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100379990C (en) * | 2003-07-07 | 2008-04-09 | 尤尼西亚Jkc控制系统株式会社 | Vane pump |
| JP2007530873A (en) * | 2004-03-29 | 2007-11-01 | アーゴ−テック・コーポレーション | Variable displacement pump with double displacement capacity used to prevent over-thrust of engines with fuel system heat benefits |
| EP1769208B1 (en) | 2004-06-30 | 2013-07-10 | Eaton Industrial Corporation | Heat exchanger |
| ITBO20040716A1 (en) * | 2004-11-19 | 2005-02-19 | H P E High Performance Enginee | VARIABLE FLOW PUMP PUMP, IN PARTICULAR FOR OIL |
| ITBO20040088U1 (en) * | 2004-11-19 | 2005-02-19 | H P E High Performance Engineering | OIL PUMP WITH VARIABLE FLOW PALLETS |
| US7484939B2 (en) | 2004-12-17 | 2009-02-03 | Eaton Corporation | Variable displacement radial piston pump |
| DE102006016431A1 (en) * | 2006-04-07 | 2007-10-18 | Zf Lenksysteme Gmbh | Positive-displacement pump e.g. sliding vane pump, for motor vehicle, has high supply opening arranged at distance to low supply opening in circulation direction, where low supply opening has sufficient effective width |
| DE102006039698B3 (en) * | 2006-08-21 | 2007-10-25 | Joma-Hydromechanic Gmbh | Feed pump for feeding hydraulic medium to internal combustion engine of motor vehicle, has pump controller adjusting feed pump toward maximum delivery, if system pressure is smaller than minimum pressure |
| US20100119396A1 (en) * | 2007-04-10 | 2010-05-13 | Chengyun Guo | Variable displacement dual vane pump |
| DE102008059720A1 (en) | 2008-11-29 | 2010-06-02 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Vane pump |
| DE102009056008A1 (en) * | 2009-11-26 | 2011-06-01 | Hella Kgaa Hueck & Co. | Vane pump |
| DE102010022677B4 (en) | 2010-06-04 | 2016-06-30 | Nidec Gpm Gmbh | Vane pump |
| JP5690238B2 (en) * | 2011-07-26 | 2015-03-25 | 日立オートモティブシステムズ株式会社 | Variable displacement oil pump |
| DE102012006016A1 (en) * | 2012-03-20 | 2013-09-26 | Hermann Lidlgruber | Rotary vane pump has rotary vane rotor transport chambers that form rotor disc space for transportation of medium from pump chamber |
| US9605673B2 (en) * | 2013-10-17 | 2017-03-28 | Tuthill Corporation | Pump with pivoted vanes |
| CN104314637B (en) * | 2014-08-19 | 2018-03-02 | 湖南机油泵股份有限公司 | The lubricating oil pump of internal combustion engine |
| CN110107497A (en) * | 2019-04-29 | 2019-08-09 | 刘书明 | A kind of variable pump housing |
| US20230083167A1 (en) * | 2021-08-27 | 2023-03-16 | Charles H. Tuckey | Rotary pump or motor with improved intake, exhaust, vane and bearingless sleeve features |
| EP4155544A1 (en) * | 2021-09-24 | 2023-03-29 | Eaton Intelligent Power Limited | Fuel pump with determinant translating cam arrangement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2241824A (en) * | 1938-04-02 | 1941-05-13 | E A Lab Inc | Pump |
| US2589449A (en) * | 1943-10-15 | 1952-03-18 | Sterling O Stageberg | Movable vane pump |
| US2918877A (en) * | 1954-07-02 | 1959-12-29 | Woodcock Francis Henry | Vane pumps |
| US3143079A (en) * | 1961-08-07 | 1964-08-04 | James F Carner | Reversible discharge flow and variable displacement pump |
| US5518380A (en) * | 1994-02-28 | 1996-05-21 | Jidosha Kiki Co., Ltd. | Variable displacement pump having a changeover value for a pressure chamber |
| CN1186916A (en) * | 1997-11-07 | 1998-07-08 | 王振忠 | Pendulum rotary vane pump |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1671240A (en) * | 1924-07-14 | 1928-05-29 | Murdock Pump Company | Pump |
| US2782724A (en) * | 1950-05-11 | 1957-02-26 | Marion W Humphreys | Vane-type rotary pumps and motors |
| US3744939A (en) * | 1971-06-25 | 1973-07-10 | Chandler Evans Inc | Variable displacement vane pump |
| US4354809A (en) * | 1980-03-03 | 1982-10-19 | Chandler Evans Inc. | Fixed displacement vane pump with undervane pumping |
| DE3014519A1 (en) * | 1980-04-16 | 1981-10-22 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | TURNING PISTON, IN PARTICULAR CELL PUMP |
| JPS59188077A (en) * | 1983-03-31 | 1984-10-25 | Mazda Motor Corp | Rotary compressor with turning sleeve |
| DE8814553U1 (en) * | 1988-11-22 | 1990-03-29 | Robert Bosch Gmbh, 7000 Stuttgart | Adjustable hydraulic displacement machine |
| US5716201A (en) * | 1995-07-31 | 1998-02-10 | Coltec Industries Inc. | Variable displacement vane pump with vane tip relief |
| JP2000087877A (en) * | 1998-09-10 | 2000-03-28 | Bosch Braking Systems Co Ltd | Variable displacement pump |
-
2002
- 2002-03-27 CN CNB028096274A patent/CN100557244C/en not_active Expired - Fee Related
- 2002-03-27 CA CA2443367A patent/CA2443367C/en not_active Expired - Fee Related
- 2002-03-27 AT AT02728572T patent/ATE310164T1/en not_active IP Right Cessation
- 2002-03-27 WO PCT/US2002/009298 patent/WO2002081921A1/en active IP Right Grant
- 2002-03-27 JP JP2002579661A patent/JP4215515B2/en not_active Expired - Fee Related
- 2002-03-27 DE DE60207401T patent/DE60207401T2/en not_active Expired - Lifetime
- 2002-03-27 KR KR10-2003-7013097A patent/KR20040004577A/en not_active Application Discontinuation
- 2002-03-27 EP EP02728572A patent/EP1384005B1/en not_active Expired - Lifetime
- 2002-03-27 CN CN2009101737372A patent/CN101968053B/en not_active Expired - Fee Related
- 2002-03-27 CA CA2715436A patent/CA2715436C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2241824A (en) * | 1938-04-02 | 1941-05-13 | E A Lab Inc | Pump |
| US2589449A (en) * | 1943-10-15 | 1952-03-18 | Sterling O Stageberg | Movable vane pump |
| US2918877A (en) * | 1954-07-02 | 1959-12-29 | Woodcock Francis Henry | Vane pumps |
| US3143079A (en) * | 1961-08-07 | 1964-08-04 | James F Carner | Reversible discharge flow and variable displacement pump |
| US5518380A (en) * | 1994-02-28 | 1996-05-21 | Jidosha Kiki Co., Ltd. | Variable displacement pump having a changeover value for a pressure chamber |
| CN1186916A (en) * | 1997-11-07 | 1998-07-08 | 王振忠 | Pendulum rotary vane pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4215515B2 (en) | 2009-01-28 |
| CA2443367C (en) | 2011-03-15 |
| DE60207401D1 (en) | 2005-12-22 |
| EP1384005A1 (en) | 2004-01-28 |
| KR20040004577A (en) | 2004-01-13 |
| WO2002081921A1 (en) | 2002-10-17 |
| EP1384005B1 (en) | 2005-11-16 |
| CN100557244C (en) | 2009-11-04 |
| CA2715436A1 (en) | 2002-10-17 |
| EP1384005A4 (en) | 2004-10-13 |
| CA2715436C (en) | 2015-03-10 |
| DE60207401T2 (en) | 2006-08-10 |
| WO2002081921B1 (en) | 2003-03-20 |
| CN101968053A (en) | 2011-02-09 |
| CA2443367A1 (en) | 2002-10-17 |
| CN1531629A (en) | 2004-09-22 |
| JP2004522902A (en) | 2004-07-29 |
| ATE310164T1 (en) | 2005-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101968053B (en) | Variable displacement pump having rotating cam ring | |
| US9435338B2 (en) | Variable displacement pump having rotating cam ring | |
| US7247008B2 (en) | Cam ring bearing for fuel delivery system | |
| US20110268596A1 (en) | Fluid device with flexible ring | |
| US7488166B2 (en) | Rotary volumetric machine | |
| US6503071B2 (en) | High speed UniVane fluid-handling device | |
| US6375435B2 (en) | Static cam seal for variable displacement vane pump | |
| US10082028B2 (en) | Rotary volumetric machine with three pistons | |
| CN111828310A (en) | Radial special-shaped plunger pump with blade characteristics and working method thereof | |
| JPH02169882A (en) | Sliding support seat type vane pump motor | |
| US20120042774A1 (en) | Displacement assembly for a fluid device | |
| AU4049799A (en) | A rotary machine | |
| CN112610476A (en) | Rotary wheel rotary vane pump | |
| RU2258144C2 (en) | Multistage rotary machine | |
| JPS59188082A (en) | Rotary compressor with turning sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20160327 |