EP1293673B1 - Flügelzellenpumpe - Google Patents
Flügelzellenpumpe Download PDFInfo
- Publication number
- EP1293673B1 EP1293673B1 EP02020795A EP02020795A EP1293673B1 EP 1293673 B1 EP1293673 B1 EP 1293673B1 EP 02020795 A EP02020795 A EP 02020795A EP 02020795 A EP02020795 A EP 02020795A EP 1293673 B1 EP1293673 B1 EP 1293673B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- end plate
- pressure field
- pump according
- 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 - Lifetime
Links
- 210000003734 kidney Anatomy 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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
- 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
-
- 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
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
- F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
-
- 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
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0023—Axial sealings for working fluid
Definitions
- the invention relates to a pump, in particular a vane or Roller pump according to the closer defined in the preamble of claim 1 Art.
- US Pat. No. 6,234,776 B1 describes a pump with a housing, in that a limited by a face plate rotor set is arranged, wherein the Runner set has a curve ring and a runner with wings and wherein the End plate is provided with an adjacent to the rotor set back pressure field, where the pump working pressure is applied.
- a generic vane pump is known from DE 41 12 196 A1. Other such pumps are also known from the prior art and are often used in practice.
- the well-known from DE 41 12 196 A1 vane pump has in the usual way on a drive shaft on a rotor set.
- the runner set consists of a curve ring and a runner with wings.
- the wings are in the runner guided radially sliding. On the outside, the wings abut the curve ring.
- Of the Runner is between a front end plate and a rear pressure plate arranged.
- the pressure plate may be similar in alternative embodiments Face plate be formed so that the pressure plate can also be referred to as a face plate.
- Pressure plate Behind the known from the generic document Pressure plate is a pressure chamber that over Pressure ports, commonly referred to as Druckniere be, with the pressure-enhancing delivery chambers communicates.
- the pressure chamber causes a front play compensation, to minimize the leak under pressure.
- the extraction rooms are between the runner, formed the curve ring and the wings.
- the pressure medium in general oil, flows through the suction-side delivery chambers from a tank via an inlet bore and an annular chamber too.
- a setting or embedding of the cam ring results from the fact that by the operation of the pump, or the conveying of the working fluid mostly under high pressure Pulsations arise, leading to micro-movements of the cam ring in the radial and axial directions. As has shown in endurance testing, this leads into the result of setting or embedding the cam ring into the housing-side face plate, i. in the Face plate, which is not adjacent to the pressure chamber. Material fatigue will be accelerated or generated.
- the print room supports embedding of the cam ring in the housing-side face plate, because the pressure chamber on the cam ring a Pressure in this direction.
- the present invention is based on the object to solve the disadvantages of the prior art and the known pumps, in particular the vane and To improve roller pumps such that a setting or Embedding the cam ring in a face plate largely is excluded.
- the fact that the face plate with at least one formed the runner set adjacent back pressure field is a back pressure on the runner set resp applied the cam ring contained in the rotor set become.
- the counter pressure field can be in particular simple way, approximately cost neutral, in the Integrate face plate and can, for example, groove-shaped be educated.
- the back pressure or the counterforce is doing in a simple Way through the working medium, for example Oil, and the pressure generated by the pump, built.
- the working medium for example Oil
- the working fluid or the pump pressure without any further supply of energy or an elaborate construction would be necessary, an embedding of the cam ring in the face plate.
- the counter-pressure field can be designed such that a setting process of the cam ring in the face plate is excluded, and yet leaky areas, could escape through the example, a leakage oil, be avoided.
- it can be provided that the cam ring floats on the counter pressure field.
- the runner set enclosing face plates with a corresponding Be provided counter pressure field.
- the solution according to the invention is not limited to the face plates, the on its front side facing away from the runner set a housing wall are arranged, but extends also on the face plates, which at the of the runner set facing away from a pressure chamber or the like.
- the at least one counter-pressure field with a pressure kidney of the face plate in conjunction stands and the front plate with two pressure kidneys each having an associated counter-pressure field.
- Characterized in that the face plate has two pressure kidneys, each connected to a back pressure field can, in a simple way, a drag or a Counterpressure are built, the setting of the cam ring prevented in the corresponding face plate.
- the introduction of the working fluid is done in a simple Way through the connection of the printing kidney with the counter pressure field. Structurally, there are no special ones Action required because the face plate in general Embodiments has two pressure kidneys.
- the use of two allows Printing kidney or two associated back pressure fields, Building a relatively constant over the surface Counterpressure, thereby reducing the burden on the reduced individual components and the occurrence of leaks are avoided.
- the Counter-pressure field in the area of a bearing surface of the cam ring is arranged.
- the at least one Print kidney provided with the counter pressure field Face plate is designed as a blind hole or through the adjacent housing or a housing cover delimited facing away from the runner end face is.
- Such a configuration has for use vane pumps, roller pumps or the like proved to be particularly suitable.
- An inflow of the working fluid between the housing and the face plate provided with the counter pressure field is not desired in general and can by the Design of the pressure kidney as a blind hole or thereby, that the pressure kidney through the adjacent housing or a housing cover is limited prevented become.
- At least one end plate integral with the housing cover and / or the housing formed is.
- a housing or a housing cover which contains the functions of the end plate, according to the invention also easily with a back pressure field Be provided as a setting of the runner set or of the cam ring also occur in this case can.
- End plates that are in the housing or in the housing cover are integrated, are already off known in the art.
- One of the essential Functions of the face plates is also limiting the Rotor assembly.
- the double-stroke vane pump shown in FIG is basically of known type, including e.g. Reference is made to DE 41 12 196 A1, which is why below only for the invention essential parts be described in more detail.
- a rotor set 2 On a drive shaft 1, a rotor set 2 is arranged, consisting of a cam ring 3 and a rotor or rotor 4 with wings 5 is.
- the wings 5 are radial in a known manner slidably guided in the rotor 4. Lying on the outside the wings 5 on the cam ring 3 at. In the embodiment is the use of ten radial arranged wings 5 are provided.
- the rotor set 2 is between a housing side Face plate 6, to the housing 7 of the vane pump adjacent and a cover-side end plate 8, which adjoins a housing cover 9, at least partially, arranged.
- a pressure chamber 10 At the remote from the rotor set 2 Front side of the cover-side end plate. 8 there is a pressure chamber 10 so that the lid side Face plate 8 often referred to as a pressure plate becomes.
- the pressure chamber 10 is about pressure kidneys 11 with the pressurized delivery rooms in conjunction.
- the Pumping rooms are generally between the Runners 4, the cam ring 3 and the wings 5 formed.
- the working or pressure agent in general oil, does not flow from the suction-side delivery chambers of one represented tank via an inlet bore 12 and a Ring chamber 13 to.
- cover-side end plate 8 In the cover-side end plate 8 are located in known manner partially annular channels 14, in known Way with not shown under wing spaces are connected and for pressing the wings 5 serve. For fixing the cover-side face plate 8 may be provided holes not shown, engage in the corresponding pins.
- the Housing-side face plate 6 two counter-pressure fields 15th on.
- the counter-pressure fields 15 are each with a corresponding adjacent Druckniere 16, the are located in the housing-side end plate 6, connected.
- In the counter-pressure fields 15 can on the Pressing 16 the working fluid to flow, so that the pump working pressure is applied.
- the generated thereby Back pressure prevents setting or embedding of the Curved ring 3 in the housing-side end plate. 6
- Fig. 1 and Fig. 2 are according to the invention two counter pressure fields 15 and two pressure kidneys 16 provided in the housing-side end plate 6.
- the counter-pressure fields 15 are in the range of one Support surface of the cam ring 3 is arranged.
- FIGS. 1 and 2 are the back pressure fields 16 through the housing side Limited end plate 6 and the cam ring 3.
- the embodiment shows here, as in particular from Fig. 2 can be seen, a particularly inexpensive too realizing embodiment in which the counter-pressure fields 15 are integrated in the face plate 6.
- the counter pressure fields 15 are formed annular arc, however, in alternative embodiments also have other adapted to the face plate 6 forms.
- the counter-pressure fields 15 can be used as grooves, depressions, Recesses, notches, cuts, Hollows or the like may be formed. there Training as a groove has proven to be particularly suitable exposed.
- Fig. 2 holes 17 are used for fixing the housing-side end plate 6 on the cam ring 3.
- dowels with a thickness of 5 mm are used.
- the solution according to the invention is not on the pump type is limited.
- the counter-pressure fields 15 for this purpose, for example, provided be that even the cover-side end plate 8 and the printing plate with counter pressure fields 15 in addition or alternatively to the use of back pressure fields 15 in the cover-side end plate 8, is provided.
- the housing-side end plate 6 and the lid-side Face plate 8 can of course also in one piece with the housing 7 or the housing cover. 9 be trained or integrated in these.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Description
- Fig. 1
- einen Längsschnitt durch eine Flügelzellenpumpe; und
- Fig. 2
- eine Draufsicht auf eine Stirnplatte mit zwei erfindungsgemäßen Gegendruckfeldern.
- 1
- Antriebswelle
- 2
- Läufersatz
- 3
- Kurvenring
- 4
- Läufer
- 5
- Flügel
- 6
- gehäuseseitige Stirnplatte
- 7
- Gehäuse
- 8
- deckelseitige Stirnplatte
- 9
- Gehäusedeckel
- 10
- Druckraum
- 11
- Druckniere
- 12
- Zulaufbohrung
- 13
- Ringkammer
- 14
- teilringförmiger Kanal
- 15
- Gegendruckfeld
- 16
- Druckniere
- 17
- Bohrung
Claims (13)
- Pumpe, insbesondere Flügelzellen- oder Rollenpumpe, mit einem Gehäuse, in dem ein, wenigstens von einer Stirnplatte begrenzter, Läufersatz angeordnet ist, wobei der Läufersatz einen Kurvenring sowie einen Läufer mit Flügeln aufweist,
dadurch gekennzeichnet, dass
die wenigstens eine Stirnplatte (6 bzw. 8) mit wenigstens einem Gegendruckfeld (15) versehen ist, wobei das Gegendruckfeld (15) im Bereich einer Auflagefläche des Kurvenringes (3) angeordnet ist und wobei durch das Einströmen von mit dem Pumpenarbeitsdruck beaufschlagtes Arbeitsmedium ein Gegendruck erzeugbar ist, welcher einem Setzvorgang des Kurvenrings (3) in der Stirnplatte (6 bzw. 8) entgegenwirkt. - Pumpe nach Anspruch 1,
dadurch gekennzeichnet, dass
das wenigstens eine Gegendruckfeld (15) mit einer Druckniere (16 bzw. 11) der Stirnplatte (6 bzw. 8) in Verbindung steht. - Pumpe nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass
die Stirnplatte (6 bzw. 8) zwei Drucknieren (16 bzw. 11) mit jeweils einem zugeordneten Gegendruckfeld (15) aufweist. - Pumpe nach Anspruch 1, 2 oder 3,
dadurch gekennzeichnet, dass
das Gegendruckfeld (15) derart ausgebildet ist, dass ein Setzvorgang des Kurvenringes (3) in die Stirnplatte (6 bzw. 8) weitgehend ausgeschlossen ist. - Pumpe nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass
das Gegendruckfeld (15) derart ausgebildet ist, dass der Kurvenring (3) auf dem Gegendruckfeld (15) schwimmt. - Pumpe nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass
das Gegendruckfeld (15) durch die Stirnplatte (6 bzw. 8) und den Kurvenring (3) begrenzt ist. - Pumpe nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass
das Gegendruckfeld (15) in die Stirnplatte (6 bzw. 8) integriert ist. - Pumpe nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass
das Gegendruckfeld (15) ringbogenförmig ausgebildet ist. - Pumpe nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass
der Läufersatz (2) von zwei Stirnplatten (6,8) begrenzt ist, wobei eine Stirnplatte (8) an einen Druckraum (10) grenzt und lediglich die andere Stirnplatte (6) mit dem wenigstens einen Gegendruckfeld (15) versehen ist. - Pumpe nach einem der Ansprüche 2 bis 9,
dadurch gekennzeichnet, dass
die wenigstens eine Druckniere (16) der mit dem Gegendruckfeld (15) versehenen Stirnplatte (6) als Sackbohrung ausgebildet ist oder durch das angrenzende Gehäuse (7) oder einen Gehäusedeckel (9) an der von dem Läufersatz (2) abgewandten Stirnseite begrenzt ist. - Pumpe nach Anspruch 9 oder 10,
dadurch gekennzeichnet, dass
die an den Druckraum (10) grenzende Stirnplatte als deckelseitige Stirnplatte (8) und die mit dem Gegendruckfeld (15) versehene Stirnplatte als gehäuseseitige Stirnplatte (6) ausgebildet ist. - Pumpe nach einem der Ansprüche 1 bis 11,
dadurch gekennzeichnet, dass
wenigstens eine Stirnplatte (6 bzw. 8) einstückig mit dem Gehäusedeckel (9) und/oder dem Gehäuse-(7) ausgebildet ist. - Pumpe nach einem der Ansprüche 1 bis 12,
dadurch gekennzeichnet, dass
das Gegendruckfeld (15) als Nut, Vertiefung, Aussparung, Einkerbung, Einschnitt, Aushöhlung oder dergleichen ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10145866A DE10145866A1 (de) | 2001-09-18 | 2001-09-18 | Pumpe, insbesondere Flügelzellenpumpe |
DE10145866 | 2001-09-18 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1293673A2 EP1293673A2 (de) | 2003-03-19 |
EP1293673A3 EP1293673A3 (de) | 2004-07-28 |
EP1293673B1 true EP1293673B1 (de) | 2005-11-30 |
Family
ID=7699371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02020795A Expired - Lifetime EP1293673B1 (de) | 2001-09-18 | 2002-09-17 | Flügelzellenpumpe |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1293673B1 (de) |
AT (1) | ATE311537T1 (de) |
DE (2) | DE10145866A1 (de) |
ES (1) | ES2254580T3 (de) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4112196A1 (de) * | 1991-04-13 | 1992-10-15 | Zahnradfabrik Friedrichshafen | Fluegelzellenpumpe |
JP3710227B2 (ja) * | 1995-12-06 | 2005-10-26 | カヤバ工業株式会社 | ベーンポンプ |
-
2001
- 2001-09-18 DE DE10145866A patent/DE10145866A1/de not_active Withdrawn
-
2002
- 2002-09-17 EP EP02020795A patent/EP1293673B1/de not_active Expired - Lifetime
- 2002-09-17 AT AT02020795T patent/ATE311537T1/de not_active IP Right Cessation
- 2002-09-17 ES ES02020795T patent/ES2254580T3/es not_active Expired - Lifetime
- 2002-09-17 DE DE50205094T patent/DE50205094D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE10145866A1 (de) | 2003-04-17 |
EP1293673A2 (de) | 2003-03-19 |
DE50205094D1 (de) | 2006-01-05 |
ATE311537T1 (de) | 2005-12-15 |
ES2254580T3 (es) | 2006-06-16 |
EP1293673A3 (de) | 2004-07-28 |
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