NO164122B - PUMP UNIT INCLUDING A PUMP WITH A DRIVE DEVICE. - Google Patents
PUMP UNIT INCLUDING A PUMP WITH A DRIVE DEVICE. Download PDFInfo
- Publication number
- NO164122B NO164122B NO882857A NO882857A NO164122B NO 164122 B NO164122 B NO 164122B NO 882857 A NO882857 A NO 882857A NO 882857 A NO882857 A NO 882857A NO 164122 B NO164122 B NO 164122B
- Authority
- NO
- Norway
- Prior art keywords
- pump
- oil
- seals
- compartment
- chamber
- Prior art date
Links
- 238000005192 partition Methods 0.000 claims description 19
- 238000005461 lubrication Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 239000012528 membrane Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000009189 diving Effects 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/008—Pumps for submersible use, i.e. down-hole pumping
-
- 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
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/008—Enclosed motor pump units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
- F04C15/0049—Equalization of pressure pulses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Control Of Electric Motors In General (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Oppfinnelsen angår et pumpeaggregat bestående av en pumpe med en drivanordning, særlig en elektromotor, The invention relates to a pump assembly consisting of a pump with a drive device, in particular an electric motor,
- pumpen er omsluttet på alle sider av et vanntett utformet pumpehus som har et sugerom med en innsugningsåpning og et trykkrom med en utløpsåpning; - pumpehuset er forbundet med et likeledes vanntett motorhus som opptar drivanordningen, hvor motorhuset omfatter et motorrom som er væsketett avdelt overfor pumpehuset via et første skilleveggområde; - i det første skilleveggområde er pumpeakselens henholdsvis spindelens lager såvel som deres tetninger anordnet for avtetning mellom motor- og pumperom, idet disse tetninger pumpesidig står i forbindelse med pumperommet og følgelig påføres pumpemediet; - motorrommet er fylt med olje som tjener til smøring av lågere og lignende, og avgir varmen fra motorhuset til omgivelsene; - et trykkutlignirgsrom som har minst én skillevegg som er deformerbar ved økende trykkpåføring. - the pump is enclosed on all sides by a watertight designed pump housing which has a suction chamber with an intake opening and a pressure chamber with an outlet opening; - the pump housing is connected to a similarly watertight motor housing which houses the drive device, where the motor housing comprises an motor compartment which is liquid-tightly separated from the pump housing via a first partition wall area; - in the first partition area, the bearings of the pump shaft and the spindle as well as their seals are arranged for sealing between the motor and pump compartment, these seals on the pump side being in connection with the pump compartment and consequently applied to the pump medium; - the engine compartment is filled with oil that serves to lubricate bearings and the like, and emits the heat from the engine housing to the surroundings; - a pressure equalization chamber which has at least one dividing wall which is deformable when pressure is increased.
Med betegnelsen "vanntett utformet pumpehus" for-stås et hus som, bortsett fra innsugnings- og utløpsåpningen, The term "watertight designed pump housing" means a housing which, apart from the intake and outlet opening,
ikke har noen åpning som muliggjør vanninntrengning, og does not have any opening that enables water ingress, and
som er forbundet med motorhuset ved mellomkobling av en pas-sende tetning. which is connected to the engine housing by intermediate connection of a suitable seal.
Det ovenfor beskrevne pumpeaggregat finnes i DE-OS 20 23 095. Ifølge dette er det tidligere kjent et elektrisk undervannspumpeaggregat ved hvilket det nevnte første skilleveggområde avdeler motorrommet overfor pumpe-trykkrommet, slik at pumpeakselens tetninger pumpesidig står i forbindelse med trykkrommet. Oljen i motorrommet ble kun påført pumpeakselens lager, mens dens pumpesidige tetninger påføres olje" frå ét separat oljekammer som er anordnet mellom motorrommet og pumpe-trykkrommet, adskilt fra motorrommet av en gummimembran og fylles med olje uavhengig av oljefyllingen i motorrommet via en egen innfyllingsskrue. For å gi oljen i motorrommet en utvidelsesmulighet, er motorhuset på sin side som vender bort fra det første skilleveggområde avtettet via en gummimembran som deler motorrommet fra et kammer hvor hele den elektriske installasjon er anbragt. På grunn av den ettergivende utfor-ming av den nevnte gummimembran gis det en utvidelsesmulighet for oljen i motoren ved oppvarming, idet gummimembranen de-formeres inn i nevnte kammer. The pump unit described above can be found in DE-OS 20 23 095. According to this, an electric underwater pump unit is previously known in which the aforementioned first partition wall area separates the motor compartment from the pump-pressure compartment, so that the seals of the pump shaft are connected to the pressure compartment on the pump side. The oil in the engine compartment was only applied to the bearing of the pump shaft, while its pump-side seals are applied with oil" from a separate oil chamber which is arranged between the engine compartment and the pump-pressure compartment, separated from the engine compartment by a rubber membrane and filled with oil independently of the oil filling in the engine compartment via a separate filling screw. In order to give the oil in the engine compartment an expansion possibility, the engine housing on its side facing away from the first partition wall area is sealed via a rubber membrane that divides the engine compartment from a chamber where the entire electrical installation is placed. Due to the flexible design of the aforementioned rubber membrane, the oil in the engine expands when heated, as the rubber membrane deforms into said chamber.
DE-OS 22 13 620 viser et pumpeaggregat med en elektromotor for undervannsdrif t, særlig for spillvannanlegg hvor motoren sitter i en vanntett kapsel med avtettet strømtilførsel. Dessuten er kapselen utformet som en dykkerklokke som omgir motorhuset, idet hulrommene i området ved elektromotoren og innenfor dykkerklokken i det vesentlige er helt fylt med olje. 01jefyllingen innenfor dykkerklokken og i motorhuset sørger for smøringen av motoren og leder samtidig bort varmen som oppstår i området ved motorviklingene og de dreiende deler. For kompensering av en varmeutvidelse av denne oljefylling er det anordnet komprimerbare legemer i det oljefylte område. DE-OS 22 13 620 shows a pump unit with an electric motor for underwater operation, particularly for waste water systems where the motor is housed in a waterproof capsule with a sealed power supply. In addition, the capsule is designed like a diving bell that surrounds the motor housing, as the cavities in the area near the electric motor and inside the diving bell are essentially completely filled with oil. The filling inside the diving bell and in the motor housing ensures the lubrication of the motor and at the same time dissipates the heat that occurs in the area of the motor windings and the rotating parts. To compensate for a thermal expansion of this oil filling, compressible bodies are arranged in the oil-filled area.
DE-OS 32 45 973 viser et motorpumpeaggregat bestående av en skruespindelpumpe og en på denne trykksidig anordnet "Spaltrohrmotor", som er tilsluttet pumpens trykkrom, idet motor-pumpedrivakselen er ]ågret mellom pumpedelen og motordelen. DE-OS 32 45 973 shows a motor pump assembly consisting of a screw spindle pump and a "Spaltrohrmotor" arranged on the pressure side of this, which is connected to the pump's pressure chamber, the motor-pump drive shaft being mounted between the pump part and the motor part.
Formålet med oppfinnelsen er å utforme et pumpeaggregat som beskrevet i det foregående, slik at det kan an-vendes under vann, særlig også på større dybder såvel som ved vekslende trykkpåføring på sugerommet fra pumpemediet. The purpose of the invention is to design a pump assembly as described above, so that it can be used under water, particularly also at greater depths as well as when alternating pressure is applied to the suction chamber from the pump medium.
Ifølge oppfinnelsen oppnås dette formål i forbindelse med de oppførte trekk ovenfor ved hjelp av følgende ytterligere kjennetegn: a) motorrommet er avdelt overfor det trykkpåførte sugerom via det første skilleveggområde; b) pumpeakselens hhv. -spindelens tetninger står pumpesidig i forbindelse med sugerommet; c) oljen som befinner seg i motorrommet påførs pumpeakselens hhv. -spindelens tetninger; d) trykkutligningsrommet står i væskeutvekslende forbindelse med sugerommet og deformerer seg med According to the invention, this purpose is achieved in connection with the features listed above by means of the following additional characteristics: a) the engine compartment is separated from the pressurized suction compartment via the first partition wall area; b) the pump shaft or - the spindle seals are on the pump side in connection with the suction chamber; c) the oil in the engine compartment is applied to the pump shaft or -spindle seals; d) the pressure equalization chamber is in fluid-exchange connection with the suction chamber and deforms with it
sin deformerbare skillevegg inn i motorrommet fylt med olje. its deformable partition wall into the engine compartment filled with oil.
Samtidig er det hensiktsmessig dersom pumpeakselens hhv. -spindelens lager som vender bort fra drivenheten såvel som deres tetninger er anordnet i et andre skilleveggområde, som avdeler det nevnte sugerom væsketett overfor et vanntett utformet smørerom fylt med olje, som står i oljeutvekslende forbindelse med motorrommet, idet disse tetninger pumpesidig står i forbindelse med sugerommet og dermed på-føres pumpemedium, mens oljen tjener til smøring av lagrene, tetningene påfylles og varmen avgis via smøreromhuset. At the same time, it is appropriate if the pump shaft or -the spindle's bearing facing away from the drive unit as well as their seals are arranged in a second partition wall area, which separates the aforementioned suction chamber liquid-tight from a water-tightly designed lubrication chamber filled with oil, which is in oil-exchange connection with the engine compartment, these seals being in connection on the pump side with the suction chamber and thus pumping medium is applied, while the oil serves to lubricate the bearings, the seals are refilled and the heat is released via the lubrication chamber housing.
De valgte betegnelser sugerom og trykkrom gjelder bare for en bestemt dreieretning for pumpen. Ved en endring av dreieretning blir forannevnte sugerom til trykkrom og om-vendt det forannevnte trykkrom til sugerom, idet da forannevnte utløpsåpning blir sugeåpning og forannevnte sugeåpning blir utløpsåpning. Virkningen av trykkutjevningen forblir der-ved uforandret. The chosen designations suction chamber and pressure chamber only apply to a specific direction of rotation for the pump. When the direction of rotation is changed, the aforementioned suction chamber becomes a pressure chamber and conversely the aforementioned pressure chamber becomes a suction chamber, as the aforementioned outlet opening becomes a suction opening and the aforementioned suction opening becomes an outlet opening. The effect of the pressure equalization thereby remains unchanged.
Ved løsningen ifølge oppfinnelsen kan en dynamisk tetning til omgivelsesmediet utelates. With the solution according to the invention, a dynamic seal to the surrounding medium can be omitted.
For å øke varmebortledningen fra oljen er det fordelaktig dersom oljeledningene som forbinder smørerommet med motorrommet føres gjennom det nevnte sugerom. In order to increase heat dissipation from the oil, it is advantageous if the oil lines connecting the lubrication compartment with the engine compartment are routed through the aforementioned suction compartment.
Ifølge oppfinnelsen oppnås det altså at det etter forholdene meget høye trykk fra pumpemediet som befinner seg i sugerommet utbrer seg i det nevnte trykkutjevningsrom og fører her til at minst én skillevegg i dette trykkutligningsrom deformerer seg inn i motorrommet og på den måten trykk-påfører dets oljefylling. Samtidig kan trykkutligningsrommet dannes ved hjelp av en gummielastisk belg eller lignende anordnet i motorrommet. Det vesentlige er at trykket som hersker i sugerommet trakter etter å forminske volumet av motorrommet fylt med olje og på den måten forsøker å komprimere oljefyllingen under tilsvarende trykkøkning, inntil det inn-stiller seg en trykkutligning mellom trykket i sugerommet og motorrommet. På pumpespindlenes tetninger i området ved de to nevnte skilleveggområder oppstår det på den måten bare meget små trykkfall, slik at inntrenging av pumpemedium inn i oljefyllingen forhindres og det sikres en høy levetid for tetningene. According to the invention, it is thus achieved that, depending on the conditions, the very high pressure from the pump medium located in the suction chamber propagates in the aforementioned pressure equalization chamber and causes here that at least one partition wall in this pressure equalization chamber deforms into the engine compartment and in this way applies pressure to its oil filling . At the same time, the pressure equalization space can be formed with the help of a rubber elastic bellows or similar arranged in the engine compartment. The essential thing is that the pressure that prevails in the suction chamber tends to reduce the volume of the engine compartment filled with oil and in that way tries to compress the oil filling under a corresponding increase in pressure, until a pressure equalization is established between the pressure in the suction chamber and the engine compartment. In this way only very small pressure drops occur on the pump spindle seals in the area of the two aforementioned partition wall areas, so that penetration of pump medium into the oil filling is prevented and a long service life for the seals is ensured.
Oppfinnelsen skal beskrives nærmere i det følgende The invention shall be described in more detail below
i forbindelse med et utførelseseksempel og under henvisning til tegningene, der fig. 1 viser et lengdesnitt gjennom et pumpeaggregat, og fig. 2 viser et utsnitt av fig. 1 i større måle-stokk . in connection with an exemplary embodiment and with reference to the drawings, where fig. 1 shows a longitudinal section through a pump assembly, and fig. 2 shows a section of fig. 1 on a larger scale.
Det viste pumpeaggregat består av en pumpe 1 med en drivanordning 2, hvor pumpen kan være en skruespindelpumpe, hvis utførelsesform tilsvarer den i europeisk patentsøknad 86113623.2. Drivanordningen 2 kan være en KSB-elektromotor, hvor den kapslet utførte motor har en vannfylling 3 som står 1 forbindelse med én trykkutligningsbeholder 4. The pump assembly shown consists of a pump 1 with a drive device 2, where the pump can be a screw spindle pump, the embodiment of which corresponds to that in European patent application 86113623.2. The drive device 2 can be a KSB electric motor, where the encapsulated motor has a water filling 3 which is connected to one pressure equalization container 4.
Pumpen 1 sitter i et vanntett utformet pumpehus 5, som har en innsugningsåpning 7 som munner i et sugerom 6. Dette pumpehus 5 er forbundet med et likeledes vanntett utformet motorhus 8 som opptar drivanordningen 2, og motorhuset 8 omfatter et motorrom 9 som omgir den kapslede drivenhet 2, og motorrommet er avdelt væsketett fra sugerommet 6 via et første skilleveggområde 10. På siden som vender bort fra drivenheten 2 har pumpehuset 5 et andre skilleveggområde 11 som avdeler det nevnte sugerom 6 væsketett overfor et smørerom 12. The pump 1 sits in a waterproof designed pump housing 5, which has a suction opening 7 that opens into a suction chamber 6. This pump housing 5 is connected to a similarly waterproof designed motor housing 8 which houses the drive device 2, and the motor housing 8 comprises a motor compartment 9 that surrounds the encapsulated drive unit 2, and the motor compartment is liquid-tightly separated from the suction compartment 6 via a first partition wall area 10. On the side facing away from the drive unit 2, the pump housing 5 has a second partition wall area 11 which separates the aforementioned suction compartment 6 liquid-tight from a lubrication compartment 12.
I det første og andre skilleveggområde 10, 11 er lagrene 13, 14 for de to pumpespindler 15, 16 såvel som deres tetninger 17, 18 anordnet. Videre er det motorsidig fra det første skilleveggområde 10 anordnet en tannhjulspumpe 19 som samtidig fremstiller dreieforbindelsen mellom de to pumpespindler 15, 16. Driften av pumpespindelen 15 skjer via en kobling 20. I motorrommet 9 er det anordnet en gummielastisk belg 21 som omslutter et trykkutligningsrom 22 som står i væskeutlignende forbindelse med sugerommet 6. In the first and second partition areas 10, 11, the bearings 13, 14 for the two pump spindles 15, 16 as well as their seals 17, 18 are arranged. Furthermore, on the engine side from the first partition wall area 10, a gear pump 19 is arranged which at the same time produces the rotary connection between the two pump spindles 15, 16. The operation of the pump spindle 15 takes place via a coupling 20. In the engine compartment 9 there is arranged a rubber elastic bellows 21 which encloses a pressure equalization space 22 which is in liquid compensating connection with the suction chamber 6.
Motorrommet 9 er fylt med olje og står i forbindelse med smørerommet 12 via en oljeledning 23 ført gjennom sugerommet 6. For å tilveiebringe en oljesirkulasjon vist med pilen 24 suger foran nevnte tannhjulspumpe 19 olje fra motorrommet 9 og trykker det via oljeledningen 23 inn i smøre-rommet 12, hvorfra det strømmer tilbake inn i motorrommet 9 via den viste oljetilbakestrømningsledning 25. Oljen påføres de motorsidige tetninger 17 på motorsiden via kanaler 26, og tetningene 18 som vender bort fra drivenheten 2 via kanaler 27 fra smørerommet 12. På den overforliggende side påføres tetningene 17, 18 av pumpemediet som befinner seg i sugerommet 6. Oljen tjener følgelig til smøring av lagrene 13, 14 såvel som tannhjulene 19, for påføring på tetningene 17, 18 såvel som til varmebortledning, idet varmen avgis via motorhuset 8 til omgivelsene. The engine compartment 9 is filled with oil and is connected to the lubrication compartment 12 via an oil line 23 led through the suction compartment 6. In order to provide an oil circulation shown by the arrow 24, the aforementioned gear pump 19 sucks oil from the engine compartment 9 and presses it via the oil line 23 into the lubrication compartment 12, from where it flows back into the engine compartment 9 via the oil return line 25 shown. The oil is applied to the engine-side seals 17 on the engine side via channels 26, and the seals 18 facing away from the drive unit 2 via channels 27 from the lubrication compartment 12. On the opposite side, the seals 17, 18 of the pump medium located in the suction chamber 6. The oil therefore serves to lubricate the bearings 13, 14 as well as the gears 19, for application to the seals 17, 18 as well as for heat dissipation, as the heat is emitted via the motor housing 8 to the surroundings.
Det viste pumpeaggregat er særlig egnet for anven-delse under vann, nemlig også på store dyp, idet innsugningsåpningen 7 da kan tilsluttes en oljeboring eller lignende. Pumpemediet er da en multifaseblanding av jordolje, sedimenter, sjøvann og jordgass, og trykkes under tilsvarende trykkøkning ut av utløpsåpningen 28 inn i en transportledning eller lignende. Pumpemediet kan altså allerede i sugerommet 6 ha et høytt trykk som så også hersker i belgens 21 trykkutligningsrom 22, hvor belgen 21 forsøker å deformere seg utover hhv. utvide seg ved innvirkning fra dens innertrykk. På den måten skjer en trykkpåføring av oljefyllingen innenfor motorrommet 9 hhv. smørerommet 12, slik at det ved tetningene 17, 18 inn-stiller seg bare meget små trykkdifferanser mellom sugerommet 6 og motorrommet 9 hhv. smørerommet 12. Disse tetninger som f.eks. kan være glideringtetninger, er altså underkastet bare et lite trykkfall, slik at det på den ene side fremkommer en høy stabilitet i tetningene og på den andre side forhindres en inntrengning av pumpemediet inn i oljefyllingen. The pump assembly shown is particularly suitable for use under water, namely also at great depths, as the suction opening 7 can then be connected to an oil well or the like. The pumping medium is then a multiphase mixture of ground oil, sediments, seawater and ground gas, and is pressed under a corresponding increase in pressure out of the outlet opening 28 into a transport line or the like. The pump medium can therefore already have a high pressure in the suction chamber 6, which then also prevails in the bellows 21's pressure equalization chamber 22, where the bellows 21 tries to deform outward or expand under the influence of its internal pressure. In this way, a pressure application of the oil filling takes place within the engine compartment 9 or the lubrication chamber 12, so that at the seals 17, 18 only very small pressure differences occur between the suction chamber 6 and the motor chamber 9, respectively. lubrication compartment 12. These seals, such as may be sliding ring seals, is thus only subject to a small pressure drop, so that on the one hand a high stability of the seals appears and on the other hand a penetration of the pump medium into the oil filling is prevented.
Pumpeaggregatet ifølge oppfinnelsen kan, som det fremgår av tegningen, anbringes i et kompakthus som er delt på midten og har et øvre såvel som et nedre avlukkingsdeksel, idet disse husdeler kan være flenset mot hverandre. Det første og andre skilleveggområde 10, 11 kan være innsveiset i huset. Huset kan på sin øvre ende være forsynt med en opphengings-anordning og på sin nedre ende ha standføtter eller lignende. Det øvre deksel kan på fordelaktig måte danne smøreromhuset 29. The pump unit according to the invention can, as can be seen from the drawing, be placed in a compact housing which is divided in the middle and has an upper as well as a lower shut-off cover, as these housing parts can be flanged against each other. The first and second partition wall areas 10, 11 can be welded into the housing. The housing can be provided with a suspension device at its upper end and have feet or the like at its lower end. The upper cover can advantageously form the lubrication compartment housing 29.
Pumpetrykkrommet som står i forbindelse med utløps-åpningen 28 har henvisningstall 30 og danner ved forandring av dreieretning sugerommet, idet da rommet 6 danner trykkrommet, åpningen 28 innsugningsåpningen og åpningen 7 utløpsåpningen. The pump pressure chamber which is in connection with the outlet opening 28 has the reference number 30 and forms the suction chamber when the direction of rotation is changed, since the chamber 6 forms the pressure chamber, the opening 28 the intake opening and the opening 7 the outlet opening.
I en avledet utførelsesform som ikke er nærmere vist på tegningen, kan drivanordningen 2 også være anordnet utenfor motorhuset 8. Drivanordningens hus kan da f.eks. være påflenset motorhuset 8i stedet for det nedre husdeksel vist på fig. 1, idet da motorhuset 8 vist på fig. 1 kan utformes meget mindre. In a derivative embodiment that is not shown in more detail in the drawing, the drive device 2 can also be arranged outside the motor housing 8. The drive device housing can then e.g. be flanged to the motor housing 8 instead of the lower housing cover shown in fig. 1, as the engine housing 8 shown in fig. 1 can be designed much smaller.
Claims (6)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873721398 DE3721398A1 (en) | 1987-06-29 | 1987-06-29 | CONVEYOR UNIT CONSISTING OF A PUMP WITH A DRIVE DEVICE |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| NO882857D0 NO882857D0 (en) | 1988-06-28 |
| NO882857L NO882857L (en) | 1988-12-30 |
| NO164122B true NO164122B (en) | 1990-05-21 |
| NO164122C NO164122C (en) | 1990-08-29 |
Family
ID=6330492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO882857A NO164122C (en) | 1987-06-29 | 1988-06-28 | PUMP UNIT INCLUDING A PUMP WITH A DRIVE DEVICE. |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0297274B1 (en) |
| DE (2) | DE3721398A1 (en) |
| NO (1) | NO164122C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8920340D0 (en) * | 1989-09-08 | 1989-10-25 | Multiphase Systems Plc | Improvements in pumps |
| DE4100135C1 (en) * | 1991-01-04 | 1992-05-14 | Loher Ag, 8399 Ruhstorf, De | |
| DE4244644C2 (en) * | 1991-12-23 | 1994-12-22 | Loher Ag | Electric motor |
| DE4209118C2 (en) * | 1991-12-23 | 1993-12-09 | Loher Ag | Asynchronous motor |
| US6059539A (en) * | 1995-12-05 | 2000-05-09 | Westinghouse Government Services Company Llc | Sub-sea pumping system and associated method including pressure compensating arrangement for cooling and lubricating |
| DE29609702U1 (en) * | 1996-05-31 | 1996-08-29 | Ursula Schickedanz Fa | Iron |
| DE102008018407B4 (en) | 2008-04-10 | 2012-03-22 | Joh. Heinr. Bornemann Gmbh | Underwater delivery unit |
| US20100278672A1 (en) * | 2009-04-30 | 2010-11-04 | General Electric Company | Method and apparatus for lubricating a screw pump system |
| DE102010026239B4 (en) | 2010-06-29 | 2012-05-31 | Joh. Heinr. Bornemann Gmbh | Underwater delivery unit with a pump and a drive device |
| DE102012003066B3 (en) * | 2012-02-17 | 2013-07-04 | Netzsch Pumpen & Systeme Gmbh | METHOD AND DEVICE FOR FIXING AND SYNCHRONIZING TURNING PISTONS IN A ROTARY PISTON PUMP |
| ITCO20120024A1 (en) | 2012-05-09 | 2013-11-10 | Nuovo Pignone Srl | PRESSURE EQUALIZER |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2023095A1 (en) * | 1970-05-12 | 1971-12-02 | Albert Blum | Electric submersible pump unit |
| DE2213620A1 (en) * | 1972-03-21 | 1973-09-27 | Lederle Pumpen & Maschf | PUMP UNIT FOR UNDERWATER OPERATION |
| DE3245973A1 (en) * | 1982-12-11 | 1984-06-14 | Allweiler Ag, 7760 Radolfzell | ENGINE PUMP UNIT |
| DE3344765A1 (en) * | 1983-12-10 | 1985-06-13 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Submerged pump |
-
1987
- 1987-06-29 DE DE19873721398 patent/DE3721398A1/en active Granted
-
1988
- 1988-05-24 EP EP88108221A patent/EP0297274B1/en not_active Expired - Lifetime
- 1988-05-24 DE DE8888108221T patent/DE3861831D1/en not_active Expired - Lifetime
- 1988-06-28 NO NO882857A patent/NO164122C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE3861831D1 (en) | 1991-04-04 |
| NO164122C (en) | 1990-08-29 |
| DE3721398C2 (en) | 1989-05-24 |
| DE3721398A1 (en) | 1989-01-19 |
| NO882857L (en) | 1988-12-30 |
| EP0297274A3 (en) | 1989-10-18 |
| NO882857D0 (en) | 1988-06-28 |
| EP0297274A2 (en) | 1989-01-04 |
| EP0297274B1 (en) | 1991-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK1K | Patent expired |