EP1454063B1 - Förderpumpe - Google Patents
Förderpumpe Download PDFInfo
- Publication number
- EP1454063B1 EP1454063B1 EP02762260A EP02762260A EP1454063B1 EP 1454063 B1 EP1454063 B1 EP 1454063B1 EP 02762260 A EP02762260 A EP 02762260A EP 02762260 A EP02762260 A EP 02762260A EP 1454063 B1 EP1454063 B1 EP 1454063B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- connecting channels
- pressure
- channel
- tappets
- 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
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 claims abstract 3
- 238000005086 pumping Methods 0.000 claims description 2
- 239000012526 feed medium Substances 0.000 abstract 1
- 239000002609 medium Substances 0.000 description 12
- 229920000642 polymer Polymers 0.000 description 7
- 239000000314 lubricant Substances 0.000 description 6
- 239000000155 melt Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000013587 production medium Substances 0.000 description 1
- 239000000126 substance Substances 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
- 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
- F04C15/0092—Control systems for the circulation of the lubricant
-
- 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
- F04C13/005—Removing contaminants, deposits or scale from the pump; Cleaning
-
- 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
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
Definitions
- the invention relates to a feed pump for promotion of fluid media according to the preamble of the main claim.
- the media to be delivered usually have a high fluidity.
- a pressure P1 the smaller is the pressure P2 prevailing on the pressure side of the pump, whereby by this pressure difference, the pumped medium via pressed or sucked the surfaces to be lubricated sliding bearings becomes.
- This acting as a lubricant actual fluid is returned to the material flow on the suction side of the pump delivered by on the suction side and on the Pressure side in front of or behind the actual pump connection channels are provided with valve means which the storage area connect the pump to the production channel.
- a gear pump is described with one at least one side in a housing-side rotationally fixed Bearing body conveying medium lubricated, sliding rotor shaft, wherein the axially outer plain bearing closure with the Low pressure side of the pump communicates to a backflow of the lubricating medium in the pumped medium main stream to allow at least one in or on the bearing body Channel in the axial direction through the slide bearing closure with the low pressure side of the pump connects.
- This channel can be adjustable with respect to its flow cross-section by by means of a set screw the inlet opening in the channel can be varied. This should make it possible, for example at startup of a pump that are changing rheological properties of the fluid to be considered.
- the invention is based on the object, a reversal of the Sliding bearing lubricating medium even when using highly viscous Polymer melts to allow, while still at the promotion of high-viscosity polymer melts simultaneously a cleaning of the connection channel can be achieved should.
- valve tappets instead spring-loaded butterfly valves or multi-way valve tappets be used, which provided in the pump housing Connecting channels designed as straight holes and the valve tappets are perfect these connection channels close, d. H. Sucking tight but adjustable in These connection channels are arranged.
- the valve tappets are not just in terms of the diameter of the holes, but also with regard to the length of the holes, to this Adapted connection channels, d. H. close the valve tappets the channels over their entire length.
- the bore is simultaneously of polymer material present in it, so that a cracking of this material inside the hole can not occur.
- the control of the valve tappet can automatically via pressure sensors done by the pressure in the production channel before and measured behind the pump and for controlling the valve tappets is exploited.
- 1 denotes a pump housing
- the Pump cover 2 and 2a has.
- a displacement body 6 for example a gear, arranged, which is driven via a drive shaft 4 and is mounted with plain bearings 10 and 11.
- the displacement body 6 is arranged in a production channel 7 and thus creates a suction side S 1 and a pressure side D 1 in the production channel 7.
- the sliding bearing for the drive shaft 4 can be seen, and flowing or conveyed in the production channel 7 medium is returned through the plain bearings back into the production channel 7, wherein on the suction side S 1 connecting channels 8 and 8a are provided.
- the flow of this production medium, which also serves as a lubricant, is indicated by the arrows.
- connection channels 8, 8a; 9, 9a in the pump housing 1 are designed as straight holes and enforce at the illustrated embodiment, the pump housing. 1 in its entire height.
- FIG. 1 In the arrangement of FIG. 1 prevails on the suction side S 1, a pressure P 1 , which is smaller than the pressure P 2 , which prevails on the pressure side D 1 , so that inevitably flowing in the production channel 7 medium as a lubricant through the sliding bearing 10th and 11 is sucked and returned to the production channel 7 via the connecting channels 8 and 8a.
- a pressure is reversed, that is, on the suction side S 2 there is a lower pressure P 1 as the pressure prevailing on the pressure side D 2 pressure P 2, and have for this reason bulb controls the plunger 12 and 12a associated with them Connection channels 8 and 8a closed and the plunger 14 and 14a have been opened so that thereby the connection channels 9 and 9a are opened and now the pumped liquid flowing in the production channel 7, pressed by the pump according to the arrows through the connection channels 9 and 9a becomes.
- connection channels 8 and 8a and 9 and 9a completely close, clean them when entering the connection channels assigned to them at the same time these connection channels, d. H. they push that in these connection channels any material present, namely the high-viscosity polymer melt, from the connection channel into the production channel and thereby clean this connection channel. apart from the functional switching of the lubricant flow So at the same time there is a complete closure the connecting channels, leaving a residue of highly viscous Polymer melt is not possible in these channels.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Description
- Fig. 1
- eine Anordnung, bei der in üblicher Weise auf der Saugseite der Pumpe vor der eigentlichen Pumpe ein Druck herrscht, der kleiner ist als der auf der Druckseite der Pumpe hinter der Pumpe herrschende Druck und in
- Fig. 2
- die Anordnung, bei der diese Druckdifferenz umge-Kehrt ist.
Claims (3)
- Förderpumpe zur Förderung von fluiden Medien, wobei die Schmierung der Pumpenlager durch das Fördermedium selbst erfolgt und auf der Saugseite sowie auf der Druckseite vor bzw. hinter einem Verdrängerkörper (6) Verbindungskanäle (8, 9; 8a, 9a) mit Ventileinsätzen vorgesehen sind, die den Lagerbereich der Pumpe mit dem Produktionskanal (7) verbinden, dadurch gekennzeichnet, dass die Verbindungskanäle (8, 9; 8a, 9a) im Pumpengehäuse (1) als geradlinige Bohrungen und die Ventileinrichtungen als Stößel (12, 12a; 14, 14a) ausgebildet sind, die in den ihnen zugeordneten Verbindungskanalabschnitten saugend dicht angeordnet und verstellbar sind.
- Förderpumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Ventilstößel (12, 12a, 14, 14a) die Verbindungskanäle (8, 9, 8a, 9a) über ihre gesamte Länge verschließen.
- Förderpumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Stößel (12, 12a; 14, 14a) in Abhängigkeit des im Produktionskanal (7) vor und hinter dem Verdrängerkörper herrschenden Druckes steuerbar sind.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10161021 | 2001-12-12 | ||
| DE10161021 | 2001-12-12 | ||
| DE10202620 | 2002-01-24 | ||
| DE10202620A DE10202620C1 (de) | 2001-12-12 | 2002-01-24 | Förderpumpe |
| PCT/DE2002/003214 WO2003054393A1 (de) | 2001-12-12 | 2002-08-31 | Förderpumpe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1454063A1 EP1454063A1 (de) | 2004-09-08 |
| EP1454063B1 true EP1454063B1 (de) | 2005-03-30 |
Family
ID=26010759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02762260A Expired - Lifetime EP1454063B1 (de) | 2001-12-12 | 2002-08-31 | Förderpumpe |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7018186B2 (de) |
| EP (1) | EP1454063B1 (de) |
| JP (1) | JP4195862B2 (de) |
| AT (1) | ATE292243T1 (de) |
| WO (1) | WO2003054393A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102959245B (zh) * | 2010-07-02 | 2016-01-06 | 欧瑞康纺织有限及两合公司 | 齿轮泵 |
| DE102010055830A1 (de) * | 2010-12-23 | 2012-06-28 | Dt Swiss Ag | Fahrwerksteuerung für ein Fahrrad |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB322778A (en) | 1928-07-12 | 1929-12-12 | British Celanese | Improvements in or relating to processes of pumping artificial silk spinning solutions |
| FR1223115A (fr) * | 1958-04-30 | 1960-06-15 | Bosch Gmbh Robert | Mécanisme hydraulique à alvéoles et en particulier pompe à engrenages, haute pression |
| DE2517484A1 (de) * | 1975-04-19 | 1976-11-04 | Bosch Gmbh Robert | Verdraengermaschine |
| JPS6385276A (ja) * | 1986-09-29 | 1988-04-15 | Shimadzu Corp | 歯車ポンプ |
| JP2613051B2 (ja) * | 1987-05-07 | 1997-05-21 | カヤバ工業株式会社 | ギヤポンプ |
| CH684954A5 (de) | 1991-02-27 | 1995-02-15 | Maag Pump Systems Ag | Zahnradpumpe. |
| JPH0552185A (ja) * | 1991-08-22 | 1993-03-02 | Kobe Steel Ltd | 溶融樹脂用ギヤポンプ |
| JP2740700B2 (ja) | 1991-08-22 | 1998-04-15 | 株式会社神戸製鋼所 | 溶融樹脂用ギヤポンプ |
| EP0628725A3 (de) * | 1994-09-05 | 1995-03-15 | Maag Pump Systems Ag | Zahnradpumpe. |
| US6135741A (en) * | 1998-12-23 | 2000-10-24 | Parker-Hannifin Corporation | Recirculating flow path for gear pump |
-
2002
- 2002-08-31 WO PCT/DE2002/003214 patent/WO2003054393A1/de not_active Ceased
- 2002-08-31 US US10/485,632 patent/US7018186B2/en not_active Expired - Fee Related
- 2002-08-31 AT AT02762260T patent/ATE292243T1/de active
- 2002-08-31 JP JP2003555078A patent/JP4195862B2/ja not_active Expired - Fee Related
- 2002-08-31 EP EP02762260A patent/EP1454063B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US7018186B2 (en) | 2006-03-28 |
| JP4195862B2 (ja) | 2008-12-17 |
| JP2005513341A (ja) | 2005-05-12 |
| US20040184939A1 (en) | 2004-09-23 |
| ATE292243T1 (de) | 2005-04-15 |
| EP1454063A1 (de) | 2004-09-08 |
| WO2003054393A1 (de) | 2003-07-03 |
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