EP2997261A1 - Membranpumpe mit lagensteuerung - Google Patents
Membranpumpe mit lagensteuerungInfo
- Publication number
- EP2997261A1 EP2997261A1 EP14723083.3A EP14723083A EP2997261A1 EP 2997261 A1 EP2997261 A1 EP 2997261A1 EP 14723083 A EP14723083 A EP 14723083A EP 2997261 A1 EP2997261 A1 EP 2997261A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- membrane
- diaphragm
- working space
- stroke position
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 44
- 239000012528 membrane Substances 0.000 claims description 47
- 238000005086 pumping Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 230000006378 damage Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 210000003746 feather Anatomy 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
Definitions
- the present invention relates to a hydraulically driven diaphragm pump.
- Such diaphragm pumps have a delivery chamber, both a suction port and a pressure port, which are both connected to the delivery chamber, a working space which is filled with a hydraulic fluid, a device for pressurizing the hydraulic fluid with an oscillating pressure pi, a diaphragm separating the delivery chamber and the working chamber from one another and between a pressure stroke position and a suction stroke position, the volume of the delivery chamber being smaller in the pressure stroke position of the membrane than in the suction stroke position of the membrane, a reservoir for receiving the hydraulic fluid at the pressure p2, wherein the storage space and working space are connected to one another via a valve with a closure part.
- the suction port and pressure port are each connected via check valves to a suction line or a pressure line.
- the membrane may be resiliently biased in the direction of the suction stroke position.
- the membrane will assume a position in which the forces acting on the membrane, i. the force applied by the fluid pressure in the delivery chamber and optionally by the resilient bias in the direction of suction stroke position on the one hand and the force applied by the fluid pressure in the working space in the direction of Druckhubposition force on the other hand, cancel each other.
- the fluid pressure in the working space is reduced and thereby becomes smaller than the pressure in the delivery chamber, this leads to a movement of the diaphragm in the direction of the suction stroke position. Due to the associated increase in the delivery chamber volume and the pressure in the delivery chamber decreases. If the fluid pressure in the delivery chamber falls below a value predetermined by the pressure in the suction line (usually ambient pressure) and the check valve, the check valve on the suction line opens and delivery fluid is sucked out of the suction line into the delivery chamber via the suction connection.
- the pressure in the suction line usually ambient pressure
- EP 0 547 404 a hydraulically driven diaphragm pump is described.
- the working space is connected via a leak-relief valve to the reservoir.
- the leak-relief valve opens and hydraulic fluid can flow from the working space into the storage space.
- the diaphragm is connected to a spool which, in the event that the diaphragm moves beyond the pressure stroke position away from the suction stroke position, is connected to a valve member which provides the hydraulic connection from the part of the working space in which the oscillating pressure-generating piston is arranged, and the part of the working space in which the membrane is arranged interrupts.
- the wall element is resiliently biased in the direction of the housing opening, wherein preferably in the opening a stop element is arranged, against which the wall element is resiliently biased.
- the resilient bias of the wall element is advantageously dimensioned such that, if, for the pressure difference between the pressure in the working space and the pressure in the reservoir: ⁇ ⁇ - p 2 > b, where b is a predetermined pressure, the wall element of the Moves the closure part and thereby the valve opens.
- Figure 4 is a schematic representation for the case that too little hydraulic fluid in the working space
- Figure 5 is a schematic representation to illustrate the overpressure function.
- the pull rod 2 is connected to a closure part 5, which cooperates with a valve seat inserted in the wall element 9.
- the wall element 9 has a connection 17, via which the working space 7 is filled with a reservoir 8, in which hydraulic fluid at the pressure p2 (this is essentially the ambient pressure).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013105072.7A DE102013105072A1 (de) | 2013-05-16 | 2013-05-16 | Membranpumpe mit Lagensteuerung |
PCT/EP2014/059614 WO2014184125A1 (de) | 2013-05-16 | 2014-05-12 | Membranpumpe mit lagensteuerung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2997261A1 true EP2997261A1 (de) | 2016-03-23 |
EP2997261B1 EP2997261B1 (de) | 2017-01-11 |
Family
ID=50687501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14723083.3A Active EP2997261B1 (de) | 2013-05-16 | 2014-05-12 | Membranpumpe mit lagensteuerung |
Country Status (8)
Country | Link |
---|---|
US (1) | US9964105B2 (de) |
EP (1) | EP2997261B1 (de) |
CN (1) | CN105209758B (de) |
BR (1) | BR112015028148A2 (de) |
CA (1) | CA2909976A1 (de) |
DE (1) | DE102013105072A1 (de) |
ES (1) | ES2617031T3 (de) |
WO (1) | WO2014184125A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017122270B4 (de) | 2017-09-26 | 2020-09-10 | Prominent Gmbh | Membranpumpe mit einer funktionssicheren Membranlagensteuerung |
DE102018111601B4 (de) | 2018-05-15 | 2020-09-24 | Prominent Gmbh | Membrananlagensteuerung mit magnetisch gehaltenem Verschlusselement |
CN114962224B (zh) * | 2022-05-14 | 2024-07-02 | 西安秦泰汽车排放技术有限公司 | 一种用于输送流体的系统 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR906965A (fr) * | 1943-09-02 | 1946-02-26 | Pompe à haute pression pour liquide corosif et usant destiné plus spécialement autraitement des arbres par pulvérisation | |
DE1034030B (de) * | 1955-09-22 | 1958-07-10 | Reiners Walter Dr Ing | Membranpumpe fuer nicht schmierende und chemisch aggressive Fluessigkeiten, insbesondere zur Schaedlingsbekaempfung in der Landwirtschaft |
US2993446A (en) * | 1957-06-01 | 1961-07-25 | Pleuger | Diaphragm piston pump |
US3769879A (en) * | 1971-12-09 | 1973-11-06 | A Lofquist | Self-compensating diaphragm pump |
DE2843054C2 (de) | 1978-10-03 | 1983-07-14 | Bran & Lübbe GmbH, 2000 Norderstedt | Kolbenmembranpumpe |
JPH03149371A (ja) * | 1989-11-02 | 1991-06-25 | Nippon Fuiidaa Kogyo Kk | ダイヤフラムポンプ |
DE4141670C2 (de) | 1991-12-17 | 1994-09-29 | Ott Kg Lewa | Hydraulisch angetriebene Membranpumpe mit Membranhubbegrenzung |
US7665974B2 (en) | 2007-05-02 | 2010-02-23 | Wanner Engineering, Inc. | Diaphragm pump position control with offset valve axis |
CN201635971U (zh) | 2009-12-26 | 2010-11-17 | 浙江工业大学 | 往复式液压隔膜泵 |
DE102010039829A1 (de) * | 2010-08-26 | 2012-03-01 | Prominent Dosiertechnik Gmbh | Membranpumpe mit trägheitsgesteuertem Leckergänzungsventil |
-
2013
- 2013-05-16 DE DE102013105072.7A patent/DE102013105072A1/de not_active Withdrawn
-
2014
- 2014-05-12 EP EP14723083.3A patent/EP2997261B1/de active Active
- 2014-05-12 BR BR112015028148A patent/BR112015028148A2/pt not_active Application Discontinuation
- 2014-05-12 CA CA2909976A patent/CA2909976A1/en not_active Abandoned
- 2014-05-12 WO PCT/EP2014/059614 patent/WO2014184125A1/de active Application Filing
- 2014-05-12 ES ES14723083.3T patent/ES2617031T3/es active Active
- 2014-05-12 CN CN201480027675.3A patent/CN105209758B/zh active Active
- 2014-05-12 US US14/783,996 patent/US9964105B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2014184125A1 (de) | 2014-11-20 |
CN105209758A (zh) | 2015-12-30 |
US9964105B2 (en) | 2018-05-08 |
CN105209758B (zh) | 2017-09-01 |
CA2909976A1 (en) | 2014-11-20 |
EP2997261B1 (de) | 2017-01-11 |
BR112015028148A2 (pt) | 2017-07-25 |
DE102013105072A1 (de) | 2014-11-20 |
US20160069341A1 (en) | 2016-03-10 |
ES2617031T3 (es) | 2017-06-15 |
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