EP1323926A2 - Pumpe - Google Patents
Pumpe Download PDFInfo
- Publication number
- EP1323926A2 EP1323926A2 EP03005717A EP03005717A EP1323926A2 EP 1323926 A2 EP1323926 A2 EP 1323926A2 EP 03005717 A EP03005717 A EP 03005717A EP 03005717 A EP03005717 A EP 03005717A EP 1323926 A2 EP1323926 A2 EP 1323926A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- housing
- pump according
- sides
- suction
- 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.)
- Granted
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
- 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
- F04C15/0046—Internal leakage control
-
- 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
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C15/062—Arrangements for supercharging the working space
Definitions
- the invention relates to a pump for conveying a fluid, in particular a vane pump, with a conveyor installed in a housing, a trained in the housing, in the suction area of the conveyor extending supply channel for the fluid and one for conveying the fluid serving injector device, the injector device under high pressure standing fluid into the from the supply channel in one of the conveyor upstream jet chamber injects fluid and this thereby sweeps along or accelerates.
- Pumps of the generic type are used, for example, in power steering systems and promote a special oil to support the steering wheel of a Motor vehicle to be applied steering force. It is preferably These are vane pumps that are provided outside of the pump Draw in the reservoir, for example from an external tank, oil.
- Such Pumps are usually equipped with a flow control valve through which oil from the high pressure area - pressure side - into the suction area - suction side - the Pump can be directed. From a certain pump speed and at a flow rate, the flow control valve opens an outflow hole, through which oil under high pressure can escape. The oil gets into the Intake area of the conveyor.
- the present invention has for its object a pump of the generic type Type in such a way that further safe evacuation of the leakage oil on the pressure side while reducing the design or production engineering measures is possible. Furthermore, a uniform charging of the cells of the conveyor is ensured. damage due to cavitation should be effectively avoided.
- a pump is the beginning mentioned type characterized in that the feed channel on both sides of the Conveying device with a subchannel opens into a blasting chamber and that the injector device emits on both sides, so that in each of the two blasting chambers at least one jet nozzle of the injector device is directed.
- the injector device or its inlet is essentially arranged centrally above the conveyor.
- Such a central arrangement of the Injector device has the advantage that those extending on both sides of the conveyor device Paths on the one hand to accelerate the coming from the tank Fluids and on the other hand of the high pressure and for injection serving fluids are approximately the same length. Accordingly, it is in the Fluid reaching on both sides of suction areas of the conveying devices same pressure, so that an even loading of the Funding facility can take place.
- the Jet nozzles aligned in such a way that the jet nozzle is under high pressure injected fluid onto the fluid to be accelerated in its flow direction or at an acute angle to its direction of flow. This will again favors the acceleration of the fluid coming from the tank, whereby the fluid under high pressure is already inside the injector device both jet nozzles is divided, namely with high kinetic energy of the Injection fluid.
- jet nozzles it is advantageous if they have an approximately round nozzle shape have, so that the fluid exits a kind of jet jacket or forms a cylindrical / conical beam jacket. Compared to a thin one fine beam creates a larger contact surface, which is due to the there is double radiation on both sides by means of the jet nozzles. Ultimately, the fluid reaches the drain holes on both sides Jet nozzles of the injector device.
- the fluid conducting the fluid coming from the tank Subchannels of the feed channel divided into both sides of the conveyor device in are of approximately the same length, so that the distances are the same on the part of the fluid coming from the tank. After leaving The oil coming from the tank is submerged in the subchannels by the injected oil high pressure and high kinetic energy and while doing so accelerated, namely similar to the case with a water jet pump.
- the partial channels of the feed channel divided on both sides of the conveyor are advantageously not only approximately the same length, but have also preferably the same course, this course possibly on both Pages is mirrored.
- the generic pump has one on one side of the housing front housing cover and one on the other side of the housing Bearing flange, if this is necessary.
- the be blasting chamber formed on the side of the conveyor at least largely is incorporated in the housing cover or in the bearing flange. It is the same conceivable that the blasting chamber is assigned to the actual housing and through the inner wall on the one hand of the housing cover and on the other hand the Bearing flange is limited. Both variants can be implemented.
- the fluid coming from the tank is in accordance with the invention Way divided on both sides of the conveyor, being on this on both sides of the conveyor in the respective blasting chamber Acceleration of the fluid takes place through injection.
- the jet nozzles are arranged under a preferably acute angle or inclined downward to the exit of the Supply channel opposite wall of the housing and / or Bearing flange directed so that the accelerated fluid there with high energy bounces and according to the contour of the wall of the housing and / or Bearing flange evades on both sides.
- Distribution of the fluid instead, namely on both sides of the conveyor again two separate flow paths, on both sides of the in the housing provided central bore for the conveyor or for the Rotary group forming conveyor.
- the wall of the housing and possibly the bearing flange is advantageous formed such that they pass through the accelerated fluid impinging there lateral outflow divided approximately evenly and in the sense of a control device at least largely in suction channels formed on both sides, the Lead suction channels into the immediate suction area of the conveyor.
- the suction channels lead directly to the suction kidneys Conveyor, on both sides of the conveyor on two from each other separate flow paths so that the suction kidneys of the conveyor to four mutually independent locations with fluid under the same pressure and be supplied with the same volume of fluid. Even loading of the This ensures conveyor.
- the to the suction kidneys leading suction channels are at least largely of the same length in order namely to avoid different sized pressure drops in the fluid.
- a pressure-limiting pilot is provided, which as Overload protection to limit a maximum operating pressure on the High pressure side serves.
- the pressure pilot is viewed from the high pressure side Fluid supplied, which again after passing through the pressure relief pilot is to be returned.
- This Flow connection can preferably via a in the housing and / or in the Housing cover and / or channel labyrinth cast into the bearing flange be realized. In any case, it is advantageous if this fluid together with the fluid coming from the tank is returned to the circuit, namely immediately before the area of action of the injector device.
- the fluid coming from the tank into the feed channel leak oil to supply which occurs unavoidably on the high pressure side.
- drainage oil channels or a corresponding channel maze provided, which is of different Collection points from which the leak oil leads into the supply channel.
- the leakage path could also be parallel to at least some areas Form the seal running, taking the leakage path near the Seal relieves pressure on the seal. Consequently, by taking precautions Leakage path not only achieves safe drainage of the fluid or leak oil, but at the same time a relief of the seal, which causes the sealing effect is favored in the long term.
- the leakage path is provided wherever leakage oil to be discharged on the pressure side occurs. As a result, the leakage path extends at least partially parallel to the seal, on the Inside of the seal or on the media side of the seal.
- the already provided groove for the seal serves as a leakage path.
- This The groove is either in the housing cover or - if available - in the bearing flange or formed in the respective end face of the housing and actually serves for inserting or receiving the seal.
- the groove can, for example, in the respective Component be cast.
- the groove is at least partially wider than that Formed seal, namely to the inside of the seal or media side, see above that the groove on the inside of the seal - media side - is parallel to the seal running leakage path forms, directly to the seal adjacent.
- the seal becomes immediate relieved on the inside of the seal and at the same time - on the Inside of the seal - lubricated and cooled if necessary.
- a broad configuration of the Groove has a double function, namely the mounting of the seal and on the other hand the provision of a leakage path or leakage channel. Since the Groove to accommodate the seal is necessary anyway, the manufacturing effort significantly reduced. This measure also reduces the overall required space, so that this measure miniaturization of Pump is favored.
- the groove is in the form of a closed, circumferential one Ring groove formed so that a sealing ring comes into question as a seal.
- the groove can be widened over its entire length so that the leakage path extends over the entire length of the seal the inside of the seal or media side - extends. It is the same conceivable that the leakage path - as widening of the groove - is only partial extends over the length of the groove, namely wherever there is something to be removed Leakage oil occurs.
- the groove could be a simple groove with a significantly widened groove base be made (at least wider than the usual groove for receiving the seal), so that the seal or the sealing ring in the outer area of the groove on the outer groove wall can be positioned adjacent. This results inevitably from the dimensioning of the groove on the one hand and the sealing ring on the other.
- the groove is stepped towards the bottom of the groove, the Seal is arranged in the outer step of the groove.
- the one receiving the seal outer groove area is advantageously formed deeper.
- the groove can be designed as a type of double groove, namely with one extending between the groove areas, the groove areas from each other at least partially or largely separating web.
- the outer groove area would be in accordance with the above statements insert the seal or the sealing ring, this groove area also in advantageously at least slightly larger than the seal.
- the inner groove area serves as a leakage path.
- the widened region of the groove is parallel to the Leakage leakage path - at least at one point with the suction side the pump is connected to the flow, namely that which accumulates in the leakage path To pump leakage oil effectively from the pressure side. It will Leakage oil is fed directly to the suction side of the pump and is there again mixed with the tank oil. According to the amount of leakage oil it is of course also possible, several flow connections between the Leakage path and the suction side, which are holes, Recesses or even a kind of labyrinth, which differs from the Groove extends to the suction side. In any case, it must be ensured here that the leakage oil accumulating in the leakage path or in the groove is sufficient for Suction side is discharged.
- the entire printed page i.e. the high pressure in the pump
- the entire printed page i.e. the high pressure in the pump
- the high pressure in the pump at least predominantly within the housing interior and / or is sealed immediately adjacent to this.
- the seal inside the extended groove no longer - like this in conventional pumps of the generic type is the case - the "real" Exposed to high pressure, so that the precaution of the leakage path with the leakage path itself on the one hand and with the one there on the other adjacent seal is favored.
- the other seals used to seal the pressure side act opposite the housing cover and, if applicable, opposite the bearing flange.
- it can be conventional sealing rings, by the way also with a special leakage path - as an extended groove - can be equipped.
- a supply channel 113 extends for the fluid.
- an injector device 114 is used to convey the fluid, which works like a water jet pump. This injector device 114 injects fluid under high pressure in one of the conveyors 1 upstream Blasting chamber 115, and there into the fluid emerging from the feed channel 113 and thereby accelerates the fluid or thereby entrains the fluid.
- the feed channel 113 opens on both sides of the conveyor 1 with one each Subchannel 116 into a - separate - blasting chamber 115, the injector device 114 emits on both sides, so that one in each of the two blasting chambers 115 Jet nozzle 117 of the injector 114 is directed.
- the jet nozzles 117 are of this type aligned that the injected via the jet nozzle 117 under high pressure Fluid strikes the fluid to be accelerated roughly in its direction of flow, so that the fluid coming from the tank accelerates again is favored.
- the fluid passes through the supply channel 113, the valve bore 125 and the outflow bores 126 to the two jet nozzles 117.
- FIG. 1 shows that the conveyor 1 formed on both sides Blasting chamber 115 largely in the housing cover 3 on one side and in the bearing flange 4 is incorporated on the other side.
- the jet nozzles 117 are orthogonal to the one opposite the outlet of the feed channel 113 Turn 118 of the housing cover 3 on one side and on the exit wall 119 of the bearing flange 4 opposite the feed channel 113 directed.
- the wall 119 of the bearing flange 4 is such trained that the accelerated fluid hitting there through lateral Outflow divided approximately evenly.
- the flow path of the fluid is with the Reference numeral 120 marked.
- the walls 119, 120 conduct the fluid in the sense of a guide device in suction channels 121 formed on both sides, so that the fluid is divided again.
- the suction channels 121 lead to suction kidneys, not shown in the figures, of the conveyor 1, wherein these are arranged downstream of the direct suction area 122 of the conveyor device 1 are.
- FIG. 4 further clearly shows that the suction kidneys or the Suction area 122 leading suction channels 121 formed approximately the same length are so that the same pressure conditions prevail on both sides in the suction area 122 and an equal volume of fluid is provided.
- FIG. 3 shows the housing 2 only in an end view opposite the housing cover shows, where there are the mouths of the feed channel 113 or the subchannel 116 and the injector device 114 or the jet nozzle 117 are shown.
- FIG. 3 further shows that the feed channel 113 does not have one in FIG. 3 shown pressure relief pilot for returning pilot oil is connected to the flow, namely via a special pilot oil channel 123.
- a leak oil channel 124 opens into the supply channel 113, so that returned pilot oil and leak oil within the supply channel 113 with that from the tank Mix incoming fluid. The total amount of fluid generated there will be then after leaving the feed channel 113 or the sub-channel 116 via the Injector device 114 or via the outflow bores 126 and via the Jet nozzles 117 acted upon by high-pressure fluid and thereby accelerated.
- Fig. 5 shows a simplified representation of a generic pump in one sectional side view, here specifically a vane pump with a rotation group 1 or conveyor not described here is.
- a rotating group 1 is only referred to DE 39 28 029 A1 as an example.
- the pump shown here comprises - as essential components - a housing 2 and a conveyor device accommodated in the housing 2, wherein it is this is the rotation group 1 already mentioned. Is on the front one side a housing cover 3 and the housing cover 2 other side - on the side opposite the housing cover 3 provided on the housing 2 adjacent bearing flange 4.
- the seal 6 is the Bearing flange 4 assigned or into a groove 9 machined into the bearing flange 4 used.
- the groove 9 could also be in the end face 10 of the housing 2 be incorporated.
- the leakage path 13 is on the inside of the seal.
- Media side - at least partially formed parallel to the seal 5, 6.
- the leakage path 13 is formed parallel to the seal 5.
- the leakage path is also 13 formed by the groove 9 in the bearing flange 4, wherein in the illustration of the bearing flange 4 according to FIG. 7 on the separate representation of the seal 6 was waived.
- Figures 5 to 8 together show that the grooves 8, 9 as in themselves closed ring grooves are formed.
- the seals 5, 6 are correspondingly designed as sealing rings, the leakage path 13 only over those Areas of the grooves 8, 9 extends where leak oil occurs and accordingly to be transported away or to be removed. Only there is the leakage path 13 as integral part of the groove 8, 9 executed, this with regard to the Housing cover 3 formed groove 8 shown particularly clearly in Fig. 6 is
- FIG. 6 furthermore indicates that the one that forms the leakage path 13 widened area of the groove 8 with the suction side 12 of the pump is connected to the flow, namely via an integral leak oil channel 15 further indicated how the leak oil 16 in the leakage path 13 - parallel to seal 5 - i.e. in the groove 8, and how the leak oil 16 from there the leak oil channel 15 of the suction side 12 and thus the tank oil is supplied.
- Fig. 8 shows three specific configurations of the groove, which are both the groove 8 formed in the end face 7 of the housing 2 and also around that in the bearing flange 4 trained groove 9 can act.
- Fig. 8 shows in the upper representation that the groove 8 or 9 to form the leakage path 13 is designed to be substantially wider than that for receiving the seal 5 or 6 is required. This wider configuration makes the leakage path 13 immediately next to the seal 5 or 6, each on the Pressure inside.
- FIG. 8 - in the middle - shows one step configuration of the groove 8 or 9, the seal 5 or 6 in deeper groove area is arranged.
- the leakage path 13 lies on something higher level than the 5 or 6 receiving groove bottom of the deeper groove area.
- FIG. 8 shows a two-part groove 8 or 9, being in the frame this exemplary embodiment, the leakage path 13 through a web 22 of the area of the groove 8 or 9 receiving the seal 5 or 6 is separated, the web 22 is lower than the outer wall 23 of the groove 8 or 9 or Leakage path 13 is executed so that with a sufficient amount of leakage oil this can go directly to the seal 5 or 6.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Rotary Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims (10)
- Pumpe zum Fördern eines Fluids, insbesondere Flügelzellenpumpe, mit einer in einem Gehäuse (2) untergebrachten Fördereinrichtung (1), einem im Gehäuse (2) ausgebildeten, sich in den Ansaugbereich (122) der Fördereinrichtung (1) erstreckenden Zufuhrkanal (113) für das Fluid und einer zum Fördern des Fluids dienenden Injektoreinrichtung (114), wobei die Injektoreinrichtung (114) unter hohem Druck stehendes Fluid in das aus dem Zufuhrkanal (113) in eine der Fordereinrichtung (1) vorgelagerte Strahlkammer (115) austretende Fluid einspritzt und dieses dadurch mitreisst bzw. beschleunigt,
dadurch gekennzeichnet, dass der Zufuhrkanal (113) beidseits der Fördereinrichtung (1) mit jeweils einem Teilkanal (116) in eine Strahlkammer (115) mündet und dass die Injektoreinrichtung (114) zweiseitig abstrahlt, so dass in jede der beiden Strahlkammern (115) mindestens eine Strahldüse (117) der Injektoreinrichtung (114) gerichtet ist. - Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass die Injektoreinrichtung (114) bzw. deren Einlass im Wesentlichen zentral über der Fördereinrichtung (1) angeordnet ist.
- Pumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Strahldüsen (117) derart ausgerichtet sind, dass das über die Strahldüse (117) unter hohem Druck eingespritzte Fluid auf das zu beschleunigende Fluid in dessen Strömungsrichtung oder unter einem spitzen Winkel zu dessen Strömungsrichtung trifft.
- Pumpe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Teilkanäle (116) des auf beide Seiten der Fördereinrichtung (1) aufgeteilten Zufuhrkanals (113) in etwa gleich lang ausgeführt sind.
- Pumpe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Teilkanäle (116) des auf beide Seiten der Fördereinrichtung (1) aufgeteilten Zufuhrkanals (113) vorzugsweise spiegelverkehrt in etwa den gleichen Verlauf haben.
- Pumpe nach einem der Ansprüche 1 bis 5, wobei das Gehäuse auf der einen Seite durch einen stirnseitigen Gehäusedeckel (3) und auf der anderen Seite gegebenenfalls durch einen Lagerflansch (4) abgeschlossen ist, dadurch gekennzeichnet, dass die beidseits der Fördereinrichtung (1) ausgebildete Strahlkammer (115) zumindest weitgehend in den Gehäusedeckel (3) und ggf. in den Lagerflansch (4) eingearbeitet ist.
- Pumpe nach Anspruch 6, dadurch gekennzeichnet, dass die Strahldüsen (117) schräg, vorzugsweise nach unten geneigt, auf die dem Austritt des Zufuhrkanals (113) gegenüberliegende Wandung (118) des Gehäusedeckels (3) und/oder des Lagerflanschs (4) gerichtet sind, wobei die Wandung (118) vorzugsweise ausgerundet ist.
- Pumpe nach Anspruch 1 oder 7, dadurch gekennzeichnet, dass die Wandung (118, 119) des Gehäusedeckels (3) und ggf. des Lagerflanschs (4) derart ausgebildet ist, dass sie das dort auftreffende beschleunigte Fluid durch seitliches Abströmen in etwa gleichmäßig aufteilt und im Sinne einer Leiteinrichtung zumindest weitgehend in beidseitig ausgebildete Saugkanäle (121) leitet.
- Pumpe nach Anspruch 8, dadurch gekennzeichnet, dass die Saugkanäle (121) zu Saugnieren der Fördereinrichtung (1) führen und dass die zu den Saugnieren führenden Saugkanäle (121) zumindest weitgehend gleich lang ausgebildet sein können.
- Pumpe nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der Zufuhrkanal (113) mit einem Druckbegrenzungspiloten zur Rückführung von Pilotöl strömungsverbunden ist, wobei die Strömungsverbindung über ein vorzugsweise in das Gehäuse (2) und/oder in den Gehäusedeckel (3) und/oder in den Lagerflansch (4) eingegossenes Kanallabyrinth realisiert sein kann.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29823903U DE29823903U1 (de) | 1998-08-13 | 1998-08-13 | Pumpe |
DE29823903U | 1998-08-13 | ||
DE29823902U | 1998-08-13 | ||
DE29823902U DE29823902U1 (de) | 1998-08-13 | 1998-08-13 | Pumpe |
EP99952381A EP1108144A1 (de) | 1998-08-13 | 1999-08-13 | Pumpe |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99952381A Division EP1108144A1 (de) | 1998-08-13 | 1999-08-13 | Pumpe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1323926A2 true EP1323926A2 (de) | 2003-07-02 |
EP1323926A3 EP1323926A3 (de) | 2003-09-10 |
EP1323926B1 EP1323926B1 (de) | 2008-09-24 |
Family
ID=26062134
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99952381A Withdrawn EP1108144A1 (de) | 1998-08-13 | 1999-08-13 | Pumpe |
EP03005717A Expired - Lifetime EP1323926B1 (de) | 1998-08-13 | 1999-08-13 | Pumpe |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99952381A Withdrawn EP1108144A1 (de) | 1998-08-13 | 1999-08-13 | Pumpe |
Country Status (5)
Country | Link |
---|---|
US (2) | US6413064B1 (de) |
EP (2) | EP1108144A1 (de) |
JP (2) | JP2002522707A (de) |
DE (1) | DE19981557B4 (de) |
WO (1) | WO2000009888A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016204099B3 (de) * | 2016-03-11 | 2017-03-16 | Magna Powertrain Bad Homburg GmbH | Dichtungsanordnung für schaltbare Flügelzellenpumpe in Cartridge-Bauweise |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4859329B2 (ja) * | 2000-07-27 | 2012-01-25 | ルーク ファールチョイグ−ヒドラウリク ゲーエムベーハー アンド カンパニー カーゲー | ロータリベーンポンプ |
US6857859B2 (en) * | 2003-02-19 | 2005-02-22 | Siemens Vdo Automotive Corporation | Gasket for jet pump assembly of a fuel supply unit |
EP1642031B1 (de) * | 2003-06-30 | 2007-01-24 | LuK Fahrzeug-Hydraulik GmbH & Co. KG | Pumpe |
DE102011084405B4 (de) * | 2011-10-13 | 2021-05-27 | Zf Friedrichshafen Ag | Saugaufgeladene Pumpe zum Fördern einer Flüssigkeit |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2759423A (en) * | 1952-11-28 | 1956-08-21 | Vickers Inc | Power transmission |
US3359913A (en) * | 1965-10-22 | 1967-12-26 | Chrysler Corp | Hydraulic pump |
US3415194A (en) * | 1966-09-16 | 1968-12-10 | Eaton Yale & Towne | Pump |
US3806273A (en) * | 1971-10-06 | 1974-04-23 | Trw Inc | Pump with means for supercharging the pump inlet |
DE2449427A1 (de) * | 1974-10-17 | 1976-04-29 | Teves Gmbh Alfred | Hydraulikpumpe |
US4213744A (en) * | 1978-03-03 | 1980-07-22 | Eaton Corporation | Hydraulic pump and improved by-pass flow means therefor |
DE19836628A1 (de) * | 1998-08-13 | 2000-02-17 | Luk Fahrzeug Hydraulik | Pumpe |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2909124A (en) * | 1956-03-13 | 1959-10-20 | Maisch Oliver | Rotary pump |
US3035554A (en) * | 1959-06-15 | 1962-05-22 | Edwin M Selzler | Hydrostatic motor |
US3053191A (en) * | 1959-09-15 | 1962-09-11 | Bosch Gmbh Robert | Gear pumps and like hydraulic machines |
US3272138A (en) * | 1964-02-17 | 1966-09-13 | Continental Machines | Variable volume pump with protection against overheating |
US3294028A (en) * | 1964-12-23 | 1966-12-27 | Borg Warner | Pressure loaded gear pump |
US3292551A (en) * | 1965-04-26 | 1966-12-20 | Clark Equipment Co | Gear pump or motor |
US3294029A (en) * | 1965-08-20 | 1966-12-27 | Trw Inc | Pressure balanced seal-pack for reversible pumps and motors |
US3373693A (en) * | 1965-10-22 | 1968-03-19 | Tractor Supply Co | Pumps |
US3416459A (en) * | 1966-05-24 | 1968-12-17 | Parker Hannifin Corp | Rotary pump or motor |
US3473476A (en) * | 1967-11-13 | 1969-10-21 | Lear Siegler Inc | Gear pump seal |
US3587405A (en) * | 1968-11-29 | 1971-06-28 | Ltv Electrosystems Inc | Indicating and seal activating device and method |
US3575538A (en) * | 1969-07-24 | 1971-04-20 | Curtiss Wright Corp | Housing sealing means for rotary engines |
US3885896A (en) * | 1973-06-16 | 1975-05-27 | Audi Ag | Liquid cooled housing for rotary piston combustion engine |
DE2700381A1 (de) | 1977-01-07 | 1978-07-13 | Bosch Gmbh Robert | Verdraengermaschine |
JPS5587881A (en) * | 1978-12-22 | 1980-07-03 | Kayaba Ind Co Ltd | Body deformation preventing structure for gear pump or motor |
JP2638987B2 (ja) * | 1988-08-30 | 1997-08-06 | アイシン精機株式会社 | 油圧駆動ファンシステム用油圧ポンプ |
US4945724A (en) * | 1989-01-26 | 1990-08-07 | Cincinnati Milacron Inc. | Apparatus for collecting hydraulic leakage fluid |
DE4122433C2 (de) | 1991-07-06 | 1994-03-24 | Luk Fahrzeug Hydraulik | Pumpe |
JPH0587061A (ja) * | 1991-09-25 | 1993-04-06 | Toyoda Mach Works Ltd | 流量制御装置 |
DE4138516A1 (de) | 1991-11-23 | 1993-05-27 | Luk Fahrzeug Hydraulik | Pumpe |
GB9506827D0 (en) * | 1995-04-01 | 1995-05-24 | Brown David Hydraulics Ltd | An improvement in pressure fluid apparatus |
-
1999
- 1999-08-13 US US09/762,789 patent/US6413064B1/en not_active Expired - Fee Related
- 1999-08-13 JP JP2000565301A patent/JP2002522707A/ja active Pending
- 1999-08-13 EP EP99952381A patent/EP1108144A1/de not_active Withdrawn
- 1999-08-13 DE DE19981557.7T patent/DE19981557B4/de not_active Expired - Fee Related
- 1999-08-13 WO PCT/DE1999/002529 patent/WO2000009888A2/de not_active Application Discontinuation
- 1999-08-13 EP EP03005717A patent/EP1323926B1/de not_active Expired - Lifetime
-
2002
- 2002-04-18 US US10/125,251 patent/US20020110459A1/en not_active Abandoned
-
2009
- 2009-11-24 JP JP2009265895A patent/JP5140059B2/ja not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2759423A (en) * | 1952-11-28 | 1956-08-21 | Vickers Inc | Power transmission |
US3359913A (en) * | 1965-10-22 | 1967-12-26 | Chrysler Corp | Hydraulic pump |
US3415194A (en) * | 1966-09-16 | 1968-12-10 | Eaton Yale & Towne | Pump |
US3806273A (en) * | 1971-10-06 | 1974-04-23 | Trw Inc | Pump with means for supercharging the pump inlet |
DE2449427A1 (de) * | 1974-10-17 | 1976-04-29 | Teves Gmbh Alfred | Hydraulikpumpe |
US4213744A (en) * | 1978-03-03 | 1980-07-22 | Eaton Corporation | Hydraulic pump and improved by-pass flow means therefor |
DE19836628A1 (de) * | 1998-08-13 | 2000-02-17 | Luk Fahrzeug Hydraulik | Pumpe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016204099B3 (de) * | 2016-03-11 | 2017-03-16 | Magna Powertrain Bad Homburg GmbH | Dichtungsanordnung für schaltbare Flügelzellenpumpe in Cartridge-Bauweise |
Also Published As
Publication number | Publication date |
---|---|
DE19981557B4 (de) | 2015-10-29 |
EP1323926B1 (de) | 2008-09-24 |
US20020110459A1 (en) | 2002-08-15 |
EP1323926A3 (de) | 2003-09-10 |
JP2010101322A (ja) | 2010-05-06 |
US6413064B1 (en) | 2002-07-02 |
WO2000009888A3 (de) | 2001-01-11 |
DE19981557D2 (de) | 2001-07-12 |
EP1108144A1 (de) | 2001-06-20 |
JP5140059B2 (ja) | 2013-02-06 |
JP2002522707A (ja) | 2002-07-23 |
WO2000009888A2 (de) | 2000-02-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1528951C3 (de) | Verdrängerpumpe zur Förderung einer stark dampf- und blasenhaltigen Flüssigkeit | |
DE4310761C2 (de) | Strahlpumpe | |
AT501757B1 (de) | Radiale dichtungsvorrichtung | |
EP0347581B1 (de) | Einspritzpumpe für Brennkraftmaschinen | |
DE19856298C1 (de) | Vorrichtung zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeuges | |
DE102009050330B4 (de) | Ölfiltereinheit mit integrierter Saugstromaufladung | |
EP1323926A2 (de) | Pumpe | |
EP0985062A1 (de) | Eintragsystem für eine webmaschine | |
DE102011084405B4 (de) | Saugaufgeladene Pumpe zum Fördern einer Flüssigkeit | |
EP0406800B1 (de) | Flügelzellen-Vakuumpumpe mit Dosiereinrichtung | |
DE19836628A1 (de) | Pumpe | |
WO2010031671A1 (de) | Hydrostatische lagerung | |
DE2305305A1 (de) | Verfahren und vorrichtung zum einbringen von oel in den arbeitsraum von schraubenkompressoren | |
DE4326505C2 (de) | Peripheralpumpe, insbesondere zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeugs | |
EP1922487B1 (de) | Verdrängerpumpe mit variablem fördervolumen | |
EP1303701B1 (de) | Pumpe | |
DE2933493A1 (de) | Zahnradpumpe | |
EP0763659A2 (de) | Flügelzellenpumpe | |
DE10037080A1 (de) | Pumpe | |
EP3650703B1 (de) | Vakuumpumpe und verfahren zur schmierung einer solchen | |
DE8908579U1 (de) | Aggregat zum Fördern von Kraftstoff | |
DE19637224A1 (de) | Pumpe | |
DE19836620C2 (de) | Pumpe | |
DE19850925C1 (de) | Zellenradschleuse und Verfahren zur Herstellung einer Gehäusebohrung | |
DE2162478C3 (de) | Einrichtung zur Einspritzung von Schmier-, Kühl- und Dichtungs-Flüssigkeit in den Arbeitsraum eines Globoidschraubenverdichters |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AC | Divisional application: reference to earlier application |
Ref document number: 1108144 Country of ref document: EP Kind code of ref document: P |
|
AK | Designated contracting states |
Designated state(s): FR GB IT |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): FR GB IT |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WEBERT, DIRK Inventor name: PARSCH, WILLI |
|
17P | Request for examination filed |
Effective date: 20040308 |
|
AKX | Designation fees paid |
Designated state(s): FR GB IT |
|
17Q | First examination report despatched |
Effective date: 20060217 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: IXETIC BAD HOMBURG GMBH |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F04C 14/26 20060101ALI20080305BHEP Ipc: F04C 2/344 20060101AFI20080305BHEP |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AC | Divisional application: reference to earlier application |
Ref document number: 1108144 Country of ref document: EP Kind code of ref document: P |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): FR GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20090625 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20140821 Year of fee payment: 16 Ref country code: GB Payment date: 20140820 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20140827 Year of fee payment: 16 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20150813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150813 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20160429 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150831 |