EP1454062A1 - Feed pump for fluidic media - Google Patents
Feed pump for fluidic mediaInfo
- Publication number
- EP1454062A1 EP1454062A1 EP02792638A EP02792638A EP1454062A1 EP 1454062 A1 EP1454062 A1 EP 1454062A1 EP 02792638 A EP02792638 A EP 02792638A EP 02792638 A EP02792638 A EP 02792638A EP 1454062 A1 EP1454062 A1 EP 1454062A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- channel
- channels
- length
- pump
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
-
- 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
Definitions
- the invention relates to a feed pump for fluid media according to the preamble of the main claim.
- EP 0 061 630 A1 describes a gear pump for metering
- the arrangement is provided with a rinsing channel system for rinsing gaps between the gears, the shafts and the pump housing before a color change, the rinsing channel system having at least one rinsing chamber and a closable inlet for a detergent and a plurality of rinsing channels connected to the rinsing chamber.
- the suction of the medium used as a lubricant is caused by the differential pressure between the suction side and the pressure side in the product channel and the lubricant is released into the product channel on the suction side of the pump after lubrication of the plain bearings.
- the lubricant is thus pressed into the space of the slide bearings by the pump pressure, on the one hand, and is sucked out of the slide bearings by the lower pressure prevailing on the suction side.
- the invention has for its object to provide an arrangement in which this removal of the pump and the cleaning of the plain bearings is no longer necessary, but the cleaning should be done by the medium itself, and it should be controllable from the outside whether this cleaning is complete took place.
- This object on which the invention is based is achieved by the teaching of the main claim.
- a control channel is additionally provided, which is arranged on the suction side of the pump for both slide bearings and with the connecting channels in connection, which are intended for the supply of the medium lubricating the slide bearings and which open on the suction side of the pump.
- Valve tappets are arranged in these connecting channels, which have a constriction and which can be adjusted from a position in which they do not hinder the return of the conveying medium lubricating the slide bearings to the suction side of the product channel, into a position in which the return of the
- Lubricating connection channel is closed. Not only is the connecting channel closed, but the valve tappet has a length in this area which corresponds to the length of the connecting channel in order to avoid dead zones. Furthermore, the valve tappet has a constriction which, when the connecting channel is closed by adjusting the tappet, enables a passage from the channel which connects to the slide bearing to a control channel, so that now pumped medium flows from the pump through the slide bearing to Control channel is led. It can easily be determined at the discharge end of the control channel whether the plain bearings are completely cleaned when changing materials or whether a product mixture is still being dispensed. As soon as the plain bearings are completely cleaned, the valve lifters are returned to their starting position, and the plain bearings are now lubricated in the previously usual manner, ie the medium is returned through the plain bearings to the suction side of the product channel.
- the arrangement described above can also be used to carry out product tests at the end of the control channels, for example in order to be able to take samples which are then further examined and make the quality of the goods conveyed by the pump controllable.
- the constriction has a length that corresponds to the distance of the mouth of the control channel in the housing cover from the mouth of the connecting channel on the outside of the pump housing.
- Fig. 1 shows the arrangement according to the invention with the connecting channel open and in
- Fig. 2 shows the position of the valve lifter, if one now
- 1 denotes a pump housing, in which a displacement body 12, for example a gearwheel, is arranged, which is effective within a product channel 7.
- the product channel and thus the displacement body 12 has a suction side S and a pressure side D.
- the displacer body 12 is driven by a drive shaft 5 and is mounted in slide bearings 8 and 9.
- connecting channels 10 and 11 are provided, through which - as indicated by the arrows in FIG. 1 - the conveyed in the product channel Pumped medium after flowing through the slide bearings 8 and 9 back to the suction side of the product channel 7 is guided.
- control channels 14 and 15 are provided, which are arranged in housing covers 2 and 3. Furthermore, in the
- Housing covers 2 and 3 aligned with the connecting bores 10 and 11 bores 16 and 17 are provided which accommodate the valve lifters 18 and 19.
- These valve tappets have constrictions 20 and 21, the length of the valve tappet between its end on the product channel side and the constriction being dimensioned such that this length corresponds to the length of the connecting channels 10 and 11 in the pump housing 1.
- each valve tappet 18 or 19 is adjusted, as can be seen in FIG. 2, in such a way that the end on the product channel side adjoining the constriction 20 or 21 closes the entire connecting bore 10 and 11.
- the conveyed medium conveyed in the product channel 7 can now, as indicated by the arrows in FIG. 2, via the area of the constriction 20, 21 to the control channel 14 or
- the medium flowing through the product channel 7 after a product change therefore cleans the slide bearings itself, and at the discharge end of the control channels 14 and 15 it can be determined when completely clean conveying medium which corresponds to the product channel 7 emerges, so that the valve lifters 18 and 19 can be put back into the position shown in Fig. 1 and now normal funding can take place again.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Fuel-Injection Apparatus (AREA)
- Details Of Reciprocating Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Exhaust Gas After Treatment (AREA)
- Lubricants (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10161023 | 2001-12-12 | ||
DE10161023 | 2001-12-12 | ||
DE10202618 | 2002-01-24 | ||
DE10202618A DE10202618C1 (en) | 2001-12-12 | 2002-01-24 | Pump for conveying liquid media comprises a displacement body with sliding bearings positioned in a pump housing, and channels connecting the sliding bearings to product channel on the vacuum side to recycle the conveying medium |
PCT/DE2002/004486 WO2003050418A1 (en) | 2001-12-12 | 2002-12-07 | Feed pump for fluidic media |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1454062A1 true EP1454062A1 (en) | 2004-09-08 |
EP1454062B1 EP1454062B1 (en) | 2008-02-13 |
Family
ID=26010760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02792638A Expired - Lifetime EP1454062B1 (en) | 2001-12-12 | 2002-12-07 | Feed pump for fluidic media |
Country Status (6)
Country | Link |
---|---|
US (1) | US6802702B2 (en) |
EP (1) | EP1454062B1 (en) |
JP (1) | JP3909058B2 (en) |
AT (1) | ATE386212T1 (en) |
DE (1) | DE50211703D1 (en) |
WO (1) | WO2003050418A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1855008B1 (en) * | 2006-05-12 | 2008-11-12 | Maag Pump Systems Textron AG | Gear pump |
EP1855007A1 (en) * | 2006-05-12 | 2007-11-14 | Maag Pump Systems Textron AG | Gear pump |
CN105673482A (en) * | 2016-03-16 | 2016-06-15 | 哈尔滨宏万智科技开发有限公司 | Left and right end covers for gear oil pump with double transmission gear shafts |
Family Cites Families (9)
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 |
US2940399A (en) * | 1958-04-25 | 1960-06-14 | Symington Wayne Corp | Hydro-balanced pump |
US4400147A (en) | 1981-03-25 | 1983-08-23 | Binks Manufacturing Company | Flushable rotary gear pump |
US4534717A (en) * | 1981-05-01 | 1985-08-13 | Ford Motor Company | Flushable metering pump |
CH684954A5 (en) | 1991-02-27 | 1995-02-15 | Maag Pump Systems Ag | Gear pump. |
US5096396A (en) * | 1991-03-05 | 1992-03-17 | V. Q. Corporation | Rotary apparatus having passageways to clean seal chambers |
EP0628725A3 (en) | 1994-09-05 | 1995-03-15 | Maag Pump Systems Ag | Gear pump. |
US6135741A (en) * | 1998-12-23 | 2000-10-24 | Parker-Hannifin Corporation | Recirculating flow path for gear pump |
DE50110984D1 (en) | 2000-06-14 | 2006-10-26 | Saurer Gmbh & Co Kg | Rinsable gear pump |
-
2002
- 2002-12-07 DE DE50211703T patent/DE50211703D1/en not_active Expired - Lifetime
- 2002-12-07 JP JP2003551429A patent/JP3909058B2/en not_active Expired - Fee Related
- 2002-12-07 EP EP02792638A patent/EP1454062B1/en not_active Expired - Lifetime
- 2002-12-07 US US10/472,426 patent/US6802702B2/en not_active Expired - Fee Related
- 2002-12-07 AT AT02792638T patent/ATE386212T1/en active
- 2002-12-07 WO PCT/DE2002/004486 patent/WO2003050418A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO03050418A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE386212T1 (en) | 2008-03-15 |
EP1454062B1 (en) | 2008-02-13 |
DE50211703D1 (en) | 2008-03-27 |
US20040109780A1 (en) | 2004-06-10 |
JP3909058B2 (en) | 2007-04-25 |
US6802702B2 (en) | 2004-10-12 |
JP2005511970A (en) | 2005-04-28 |
WO2003050418A1 (en) | 2003-06-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3143206C2 (en) | ||
EP0061630B1 (en) | Flushable gear pump | |
DE102011055194B4 (en) | Hydraulic pump assembly | |
EP0166807B1 (en) | Rotary vane vacuum pump | |
EP0669465B1 (en) | Bearing arrangement for a viscous fluid pump | |
EP2140142B1 (en) | Gear pump | |
DE102014000846A1 (en) | Screw Pump | |
EP0501362B1 (en) | Gear pump | |
EP0024024A1 (en) | Selflubricating gear pump | |
CH716640A2 (en) | Double pump and oil delivery device for pumping oil for an internal combustion engine. | |
DE3319776C2 (en) | SPIRAL COMPRESSOR | |
EP1454062B1 (en) | Feed pump for fluidic media | |
DE2048301A1 (en) | Measuring and Spulol pump | |
DE3545078A1 (en) | LUBRICATING DEVICE FOR FLUID DEVICES | |
DE10202618C1 (en) | Pump for conveying liquid media comprises a displacement body with sliding bearings positioned in a pump housing, and channels connecting the sliding bearings to product channel on the vacuum side to recycle the conveying medium | |
DE4100723C2 (en) | Central lubrication unit | |
DE3730685A1 (en) | Pressure lubrication system for rotary-vane vacuum pumps | |
WO2009012606A2 (en) | Displacement machine according to the spiral principle, comprising a bearing assembly on both sides | |
DE19633559A1 (en) | Flow controller | |
DE1775401C3 (en) | Device for lubricating the shaft bearings of gear pumps | |
EP0696680B1 (en) | Gear pump for the delivery of lacquer | |
EP0628725A2 (en) | Gear pump | |
DE1761827C (en) | Liquid filter with automatic cleaning | |
DE3322069A1 (en) | Pressurised gas machine, especially a compressor, with circulating lubrication | |
EP1454063A1 (en) | Feed pump |
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 |
|
17P | Request for examination filed |
Effective date: 20030719 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE IT LI |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 50211703 Country of ref document: DE Date of ref document: 20080327 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: BRAUNPAT BRAUN EDER AG |
|
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: 20081114 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50211703 Country of ref document: DE Representative=s name: HABBEL & HABBEL, DE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PUE Owner name: NORDSON HOLDINGS S.A.R.L. AND CO. KG, DE Free format text: FORMER OWNER: KREYENBORG VERWALTUNGEN UND BETEILIGUNGEN GMBH AND CO. KG, DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 50211703 Country of ref document: DE Owner name: NORDSON HOLDINGS S.A.R.L. & CO. KG, DE Free format text: FORMER OWNER: KREYENBORG VERWALTUNGEN UND BETEILIGUNGEN GMBH & CO. KG, 48157 MUENSTER, DE Effective date: 20140917 Ref country code: DE Ref legal event code: R082 Ref document number: 50211703 Country of ref document: DE Representative=s name: HABBEL & HABBEL, DE Effective date: 20140917 Ref country code: DE Ref legal event code: R082 Ref document number: 50211703 Country of ref document: DE Representative=s name: EISENFUEHR SPEISER PATENTANWAELTE RECHTSANWAEL, DE Effective date: 20140917 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: PC Ref document number: 386212 Country of ref document: AT Kind code of ref document: T Owner name: NORDSON HOLDINGS S.A.R.L. & CO. KG, DE Effective date: 20150618 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50211703 Country of ref document: DE Representative=s name: EISENFUEHR SPEISER PATENTANWAELTE RECHTSANWAEL, DE |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20151211 Year of fee payment: 14 Ref country code: CH Payment date: 20151221 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20151222 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20151228 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50211703 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 386212 Country of ref document: AT Kind code of ref document: T Effective date: 20161207 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161231 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161231 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161207 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161207 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170701 |