EP0795086B1 - Flügelzellenpumpe - Google Patents
Flügelzellenpumpe Download PDFInfo
- Publication number
- EP0795086B1 EP0795086B1 EP95936531A EP95936531A EP0795086B1 EP 0795086 B1 EP0795086 B1 EP 0795086B1 EP 95936531 A EP95936531 A EP 95936531A EP 95936531 A EP95936531 A EP 95936531A EP 0795086 B1 EP0795086 B1 EP 0795086B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction
- drive shaft
- control valve
- channel
- vane pump
- 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
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
-
- 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
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
-
- 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
- F04C2270/05—Speed
- F04C2270/052—Speed angular
-
- 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
- F04C2270/20—Flow
- F04C2270/205—Controlled or regulated
Definitions
- the invention relates to a vane pump with a in a housing mounted cam ring and a through a drive shaft drivable rotor with radial slots.
- Working slides are inserted in the radial slots, that glide along the curve ring.
- the rotor and the working valves formed by control plates in axial Direction are limited.
- the housing is on the one hand from Delivery pressure and on the other hand the outlet pressure plus one Spring-loaded flow control valve installed, the a connection from a pressure chamber to one with the Can connect connected suction channel.
- a suction channel in two symmetrical leading to suction zones arranged, curved suction arms divided into the end wall of a housing.
- Such a vane pump is for example known from US-PS 5 112 199.
- This pump has two from Flow control valve outgoing and with the two suction zones connected spray channels.
- the suction zones are also there still over two grooves with one below the flow control valve lying inlet bore in connection.
- Such a thing System with two spray channels is relatively expensive.
- these channels can pass through when the oil is sprayed off Tolerances have different effects. This means, that one of the two suction zones charges only with a delay. Due to the different filling of the suction zones Noises arise.
- the invention is therefore based on the object To improve the pump in its spray and suction area so that there is a favorable noise behavior even at high pump speeds results in low manufacturing costs.
- Vane pump solved in that the suction channel in a distributor section located in the middle of the flow control valve opens from which the curved suction arms originate, the manifold section and the curved suction arms so are arranged that the drive shaft or its plain bearing bush acts as a current divider.
- the spray channel of the Flow control valve opens in the middle of the distributor section.
- the drive shaft forms their contour in the course of the distributor section and on a partial length of the suction arms the inner channel wall.
- the on the flow control valve via the spray channel into the distributor section regulated oil hits the drive shaft and flows over on both sides of the shaft without great resistance the curved suction arms into the suction zones. Since only one spray channel lies in the center of the distributor section the oil is distributed evenly over the suction zones.
- the Drive shaft as a current divider has another advantage: Because the flow control valve at high speed regulated oil hits the hard steel drive shaft, there can be no cavitation or abrasion at this point occur. When the duct walls are made Die casting, which usually consists of the entire housing, would be such wear in the sensitive distributor area not be ruled out.
- a Slide bearing bush of the drive shaft designed as a current divider, with the plain bearing bushing approximately up to the inner one Control plate extends. Since the plain bearing bush as Two-substance store is executed, the stripping beam hits the Spray hole in turn on the hard steel outer jacket the socket.
- the bore of the flow control valve starting from a pressure chamber by about 15 ° to the drive shaft be inclined. This measure results in a favorable spray angle and thus a better efficiency (charging) of the restricted oil.
- the leak oil flows from the area of Rotors directly to the suction zones via the suction arms. This measure allows a lubrication groove to be returned save the oil in the slide bearing of the drive shaft.
- the vane pump is used to deliver pressure oil a container, not shown, to a container, not shown Consumers, for example an auxiliary steering system.
- the rotor set 3 consists of a cam ring 4 and a rotor 5.
- the rotor 5 is arranged in the interior of the cam ring 4 and has radially directed slots in which wings 6 are movable. Between the cam ring, the rotor 5 and the wings 6 are working chambers formed by control surfaces adjacent control plates 7 and 8 in the axial direction are limited.
- the pump corresponds to a double stroke Execution.
- the housing 2 is composed of a bearing housing 10 and a Pot-shaped housing cover 11 assembled.
- the rotor 5 sits rotatably on a drive shaft 12, which is in the Bearing housing 10 supports.
- the bearing in the bearing housing 10 is the only bearing of the drive shaft 12. This means that the drive shaft 12 in the housing cover 11 is not supported in the radial direction.
- the drive shaft rather is based on the housing cover 11 in axial direction.
- a flow control valve 13 for the control of the the pressure connection led pressure oil provided.
- Training the flow control valve 13 and one more existing, not visible pressure relief valve generally known, for example from US Pat. No. 5,098,259 and is therefore not described in detail.
- they are Pressure channels that connect the working chambers with the flow control valve 13 and connect the pressure relief valve in which Bearing housing 10 arranged. These channels are also general known and are therefore not described in detail.
- the control plate 7 has a throttle 14 and one Breakthrough 14A.
- the throttle and the breakthrough are available between the rotor 5, the cam ring 4 and the Wings 6 formed pressure-carrying working chambers in connection.
- the delivery pressure prevails in pressure chamber 1.
- Breakthrough 14A closes axially a piston bore 15 of the flow control valve 13 on.
- the piston bore 15 contains a control piston 17, on the one inserted into a spring chamber 15A Spring 16 presses.
- the piston bore 15 is over a bore with the outlet channel 19 in connection. How best 2 shows a suction channel 18 via a distributor section 20 and two curved Suction arms 21 and 22 in connection with suction zones 23 and 24, respectively.
- the suction zones 23 and 24 form the inlets in a known manner between the Wing 6 lying working chambers of the pump.
- the distributor section 20 is centrally below of the flow control valve 13.
- the manifold section 20 and the Suction arms 23 and 24 are arranged so that the drive shaft 12 acts as a current divider.
- the drive shaft thus forms part of the inner channel wall.
- To the invention also belongs in the middle of the distributor section 20 opening spray channel 25 of the flow control valve 13.
- the control piston 17 controls the discharge channel 25 Flow control valve 13 promoted at higher speeds Excess current in the suction zones 23, 24.
- the drive shaft 12 is supported in a plain bearing bush 26.
- the one that acts as a current divider Bushing 26 is designed as a two-substance store, i. H., the outer jacket consists, for. B. made of steel, while the inner surface is made of non-ferrous metal.
- the same results here Advantages as already mentioned in connection with FIG. 1. Is left between the end plate 7 and the plain bearing bush 26 a small gap "S" free, so can this gap the leak oil in turn from the area of Rotor 5 the suction arms 21, 22 and thus the suction zones 23, 24 flow.
- the flow control valve 13 works as follows: With increasing speed, the differential pressure increases because of the throttle 14 on the end face of the control piston 22 facing the opening 14A.
- the control piston 22 acts as a pressure compensator and moves to the left against the force of a spring 23 and against the force of the outlet pressure behind the control piston. In this case, the end face of the control piston 22 opens the spray channel 25. A partial flow thus reaches the feed side of the pump in a known manner. A horizontal or falling useful current characteristic is thus obtained.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
- Fig. 1
- einen Längsschnitt durch eine erfindungsgemäße Flügelzellenpumpe;
- Fig. 2
- eine Draufsicht nach der Linie II-II in Fig. 1;
- Fig. 3
- einen Teil-Längsschnitt durch eine Ausführungsform mit einer in einer Gleitlagerbuchse gelagerten Antriebswelle;
- Fig. 4
- den Querschnitt nach der Linie IV-IV in Fig. 3 und
- Fig. 5
- einen Teil-Längsschnitt durch eine weitere Ausführungsform mit einem quer angeordneten Stromregelventil.
Mit steigender Drehzahl nimmt der Differenzdruck wegen der Drossel 14 auf die dem Durchbruch 14A zugewandte Stirnfläche des Regelkolbens 22 zu. Der Regelkolben 22 wirkt als Druckwaage und verschiebt sich gegen die Kraft einer Feder 23 und gegen die Kraft des hinter dem Regelkolben herrschenden Auslaßdruckes nach links. Dabei öffnet die Stirnfläche des Regelkolbens 22 den Abspritzkanal 25. Ein Teilstrom gelangt somit in bekannter Weise wieder auf die Zulaufseite der Pumpe. Man erhält somit eine waagerechte oder fallende Nutzstromkennlinie.
- 1
- Druckraum
- 2
- Gehäuse
- 3
- Rotorsatz
- 4
- Kurvenring
- 5
- Rotor
- 6
- Flügel
- 7
- Steuerplatte
- 8
- Steuerplatte
- 9
- Saugkanal
- 10
- Lagergehäuse
- 11
- Gehäusedeckel
- 12
- Antriebswelle
- 13
- Stromregelventil
- 14
- Durchbruch
- 14A
- Durchbruch
- 15
- Kolbenbohrung
- 15A
- Federraum
- 16
- Feder
- 17
- Regelkolben
- 18
- Saugkanal
- 19
- Auslaßkanal
- 20
- Verteilerabschnitt
- 21
- Saugarm
- 22
- Saugarm
- 23
- Saugzone
- 24
- Saugzone
- 25
- Abspritzkanal
- 26
- Gleitlagerbuchse
- 27
- Bohrung
- "S"
- Spalt
Claims (4)
- Flügelzellenpumpe mit folgenden Merkmalen:gekennzeichnet durch folgende Merkmale:in einem Gehäuse (2) ist ein Kurvenring (4) gelagert;ein durch eine Antriebswelle (12) antreibbarer Rotor (5) hat radiale Schlitze, in welche an den Kurvenring (4) dichtend entlanggleitende Arbeitsschieber (6) eingesetzt sind;zwischen dem Kurvenring (4), dem Rotor (5) und den Arbeitsschiebern (6) sind Arbeitskammern gebildet, die durch Steuerplatten (7,8) in a ialer Richtung begrenzt sind;im Gehäuse ist ein einerseits vom Förderdruck und andererseits vom Auslaßdruck plus einer Federkraft beaufschlagtes Stromregelventil (13) eingebaut, das eine Verbindung von einer Druckkammer (1) zu einem Abspritzkanal (25) herstellen kann;ein Saugkanal (18) ist in zwei zu Saugzonen (23, 24) geführte, symmetrisch angeordnete, gebogene Saugarme (21, 22) aufgeteilt, die in einer Stirnwand des Gehäuses liegen,der Saugkanal (18) mündet in einen mittig zum Stromregelventil (13) liegenden Verteilerabschnitt (20), von dem die gebogenen Saugarme (21, 22) ausgehen;der Verteilerabschnitt (20) und die gebogenen Saugarme (21, 22) sind so angeordnet, daß die Antriebswelle (12) als Stromteiler wirkt undder Abspritzkanal (25) des Stromregelventils (13) mündet mittig in den Verteilerabschnitt (20).
- Flügelzellenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß eine Gleitlagerbuchse (26) der Antriebswelle (12) als Stromteiler ausgeführt ist und die Gleitlagerbuchse (26) sich bis in die Nähe der inneren Steuerplatte (7) erstreckt (Fig. 3).
- Flügelzellenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß die einen Regelkolben (17) enthaltende Bohrung (15) des Stromregelventils (13) von einem Druckraum (1) ausgehend um etwa 15° zur Antriebswelle hin geneigt ist (Fig. 5).
- Flügelzellenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß das Lecköl aus dem Bereich des Rotors (5) über die Saugarme (21, 22) unmittelbar den Saugzonen (23, 24) zufließt.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4438696A DE4438696A1 (de) | 1994-10-29 | 1994-10-29 | Flügelzellenpumpe |
| DE4438696 | 1994-10-29 | ||
| PCT/EP1995/004129 WO1996013665A1 (de) | 1994-10-29 | 1995-10-21 | Flügelzellenpumpe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0795086A1 EP0795086A1 (de) | 1997-09-17 |
| EP0795086B1 true EP0795086B1 (de) | 1998-05-27 |
Family
ID=6532010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95936531A Expired - Lifetime EP0795086B1 (de) | 1994-10-29 | 1995-10-21 | Flügelzellenpumpe |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5800135A (de) |
| EP (1) | EP0795086B1 (de) |
| JP (1) | JP3830514B2 (de) |
| KR (1) | KR100380294B1 (de) |
| BR (1) | BR9509452A (de) |
| DE (2) | DE4438696A1 (de) |
| ES (1) | ES2116778T3 (de) |
| WO (1) | WO1996013665A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2332482B (en) * | 1997-06-24 | 2001-10-03 | Luk Fahrzeug Hydraulik | Pump for conveying a medium |
| DE19927792A1 (de) * | 1998-06-23 | 2000-03-16 | Jidosha Kiki Co | Ölmpumpe |
| DE10015020A1 (de) | 2000-03-25 | 2001-09-27 | Zf Lenksysteme Gmbh | Verdrängerzellenpumpe |
| JP4519644B2 (ja) | 2002-06-13 | 2010-08-04 | 株式会社ジェイテクト | オイルポンプ |
| DE102015115587B4 (de) | 2015-09-16 | 2024-07-18 | Pump Technology Solutions PS GmbH | Verdrängerpumpe,verfahren zum betreiben einer verdrängerpumpe,lenksystem und getriebe |
| DE102015017530B4 (de) | 2015-09-16 | 2025-03-13 | Pump Technology Solutions PS GmbH | Verdrängerpumpe, Verfahren zum Betreiben einer Verdrängerpumpe, Lenksystem und Getriebe |
| DE202015010036U1 (de) | 2015-09-16 | 2024-05-24 | Pump Technology Solutions PS GmbH | Verdrängerpumpe, Lenksystem und Getriebe |
| DE202015010041U1 (de) | 2015-09-16 | 2024-09-06 | Pump Technology Solutions PS GmbH | Verdrängerpumpe, Lenksystem und Getriebe |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2981067A (en) * | 1959-07-06 | 1961-04-25 | Thompson Ramo Wooldridge Inc | Flow regulator |
| JP2840087B2 (ja) * | 1989-08-29 | 1998-12-24 | 株式会社ユニシアジェックス | 液体ポンプ |
| JPH0350587U (de) * | 1989-09-26 | 1991-05-16 | ||
| JP2895169B2 (ja) * | 1990-06-11 | 1999-05-24 | 株式会社ユニシアジェックス | ベーンポンプ |
-
1994
- 1994-10-29 DE DE4438696A patent/DE4438696A1/de not_active Withdrawn
-
1995
- 1995-10-21 KR KR1019970702461A patent/KR100380294B1/ko not_active Expired - Fee Related
- 1995-10-21 ES ES95936531T patent/ES2116778T3/es not_active Expired - Lifetime
- 1995-10-21 EP EP95936531A patent/EP0795086B1/de not_active Expired - Lifetime
- 1995-10-21 WO PCT/EP1995/004129 patent/WO1996013665A1/de not_active Ceased
- 1995-10-21 DE DE59502366T patent/DE59502366D1/de not_active Expired - Fee Related
- 1995-10-21 US US08/817,518 patent/US5800135A/en not_active Expired - Fee Related
- 1995-10-21 BR BR9509452A patent/BR9509452A/pt not_active Application Discontinuation
- 1995-10-21 JP JP51429396A patent/JP3830514B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE59502366D1 (de) | 1998-07-02 |
| DE4438696A1 (de) | 1996-05-02 |
| ES2116778T3 (es) | 1998-07-16 |
| WO1996013665A1 (de) | 1996-05-09 |
| KR100380294B1 (ko) | 2003-07-18 |
| BR9509452A (pt) | 1998-01-06 |
| US5800135A (en) | 1998-09-01 |
| JPH10508355A (ja) | 1998-08-18 |
| EP0795086A1 (de) | 1997-09-17 |
| JP3830514B2 (ja) | 2006-10-04 |
| KR970707389A (ko) | 1997-12-01 |
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