EP2057376A1 - Membranpumpe mit zwei membranköpfen und zwei separaten pumpengehäusen - Google Patents
Membranpumpe mit zwei membranköpfen und zwei separaten pumpengehäusenInfo
- Publication number
- EP2057376A1 EP2057376A1 EP07856361A EP07856361A EP2057376A1 EP 2057376 A1 EP2057376 A1 EP 2057376A1 EP 07856361 A EP07856361 A EP 07856361A EP 07856361 A EP07856361 A EP 07856361A EP 2057376 A1 EP2057376 A1 EP 2057376A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- diaphragm
- pump
- pump housing
- air
- housings
- 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
- 239000012528 membrane Substances 0.000 claims description 41
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004804 winding Methods 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
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/043—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms two or more plate-like pumping flexible members in parallel
Definitions
- the invention relates to a diaphragm pump with two membrane heads and with two separate pump housings and membranes provided therein, wherein the pump housing are arranged adjacent to each other and the drive of the membranes is offset by 180 degrees, that the direction of the simultaneous deflections of the membranes of the two membrane heads in each case in opposite directions is.
- the membrane pump defined at the outset is characterized in that the two-separate pump housings are permeable to air. are connected to each other. It is thereby achieved that the air moved by the diaphragms in the pump housings does not have to escape, or only to a small extent ms, because the air displaced by one diaphragm can flow in the other pump housing, if its diaphragm is just the inner volume of this second pump housing increased. The respective displaced air can therefore be moved between the two closed pump housings. Thus, these can be made airtight or largely airtight to the environment.
- the Verbmdungs can connect the facing sides or walls of the two pump housing in particular straight. This is practically the shortest connection for the air line, so that their flow resistance is correspondingly low.
- m the immediate space between the two pump housings usually enough unused space to accommodate such a Verbmdungs effet.
- the two separate pump housings and / or the delivery volume of the two membranes arranged therein per stroke can expediently be the same. This results in the best possible compensation of the respectively displaced air from one pump housing to the other and back again.
- one bearing disc covering the bearing can be provided on the bearing of the drive shaft in the region of the passage through the pump housing.
- Felt washers are effective sealants that cause little or no noise.
- the felt disk on the inside of the pump housing facing away and / or facing side of the bearing or ball bearing be mounted. This may be dependent on the particular construction of the support of the drive shaft become .
- the respective pump housing in the region of the connecting rod for the drive of the diaphragm has an intermediate wall for delimiting the crankcase from the movement space of the diaphragm head, which has a passage opening for the connecting rod, and that the connection or connecting line of the two Pump housing is provided in particular between this intermediate wall and the underside of the respective membrane head.
- the moving of the membranes or diaphragm heads within the pump housing air is mainly or exclusively m the Verbmdungstechnisch directed and thus the risk of leakage of air from the pump housings further reduced or avoided.
- FIG. 1 shows a longitudinal section of a membrane pump according to the invention with two membrane heads and two separate pump housings which are connected to one another in an air-permeable manner via a connecting line, wherein one membrane is in top dead center and accordingly the other membrane driven in the opposite direction Dead center are shown, so that the displaced by this located in the lower dead center membrane air m is conveyed to the other pump housing,
- FIG. 2 shows a longitudinal section, rotated by 90 degrees relative to FIG. 1, through one of the pump housings, which has an intermediate wall penetrated by the connecting rod between the movement space of the diaphragm and the crankcase, and the connecting line to the second pump housing, not shown, between the underside of the pump housing Membrane or the
- Diaphragm and this partition is arranged, as well
- Fig. 3 is a partial longitudinal section analogous to Fig.2, but this rotated by 90 degrees, where m the passage opening m of the intermediate wall for the connecting rod additionally provided a seal.
- a designated as a whole with 1 diaphragm pump has two membranes 6 and two separate, adjacent to each other arranged pump housing 3 and two membrane heads 15, wherein a common drive shaft 4, the connecting rod 5 of the two membranes 6 drives.
- the drive of the two diaphragms 6 or the connecting-rod mushrooms 2 supporting them, as clearly shown in FIG. 1, is offset by 180 degrees in such a way that the direction of the simultaneous deflections of the diaphragms 6 of the two connecting-rod mushrooms 2 is in opposite directions.
- the cross section of provided between the two substantially parallel pump housings 3 Verbmdungs effet 7 and also their flow resistance are dimensioned such that as far as possible, the entire promoted or displaced from the respective diaphragm underside air m the other pump housing 3 is promoted.
- the connecting line 7 connects the two pump housing 3 at their mutually facing sides or walls 3a straight, so that the shortest possible Verbmdungs effet 7 is possible, which may be flexible or rigid, at the same time two pump housing 3 stable to connect with each other.
- FIG. 1 is also shown that at least one seal 8 is provided in the region of the bearing or passage opening for the entire drive shaft 4 to the respective pump housing 3, whose flow resistance is greater than that of the Verbmdungstechnisch 7 between the two pump housings 3, which additionally contributes in that the air displaced by the connecting-rod fungi 2 and the membranes 6 on each side is moved almost completely back and forth over the connecting duct 7.
- a bearing 9 covering felt disk may be provided as a seal 8, which is mounted in the embodiment on the inside of the respective pump housing 3 opposite side of the bearing or ball bearing 9. But it could also be provided on the inside of the pump housing 3 side facing or on both sides of the respective bearing.
- FIGS. 2 and 3 as an additional measure for the predominantly exclusive delivery of the respectively displaced air through the connecting line 7, it is shown that the respective pump housing 3 in the area of the connecting rod 5 has an intermediate wall 10 for delimiting the crankcase 11 from the movement space 12
- Membrane 6 has, with a passage opening 13 for the connecting rod 5 is necessary and provided and the Verbmdungs- line of the two pump housing 3 is disposed between this intermediate wall 10 and the underside of the respective connecting rod 2.
- the intermediate wall and the narrowest possible passage opening 13 improve the conveying of the air displaced on the underside of the respective connecting rod mushroom during its downward movement and through the connecting conduit 7.
- this passage opening 13 in addition to a close tolerance of this passage opening 13 with respect to the connecting rod 5 can also m the passage opening 13 according to Figure 3 still a the connecting rod 5 acting, the movement permitting seal 14, for example, a felt disc, be provided, which m according to Figure 3 recesses of Edge of the passage opening 13 engages.
- the diaphragm pump 1 has two membrane heads 15, two diaphragms each 6 and two separate pump housing 3, in which the connecting rods 5 are arranged with connecting rods 2 for the membranes 6, which can be driven by a common shaft 4, wherein the drive for the shaft 4th can be arranged between the two pump housings 3.
- the two pump housing 3 are permeable to air, in particular via a
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 |
---|---|---|---|
DE102007003720A DE102007003720B3 (de) | 2007-01-25 | 2007-01-25 | Membranpumpe mit zwei Membranköpfen und zwei separaten Pumpengehäusen |
PCT/EP2007/010520 WO2008089813A1 (de) | 2007-01-25 | 2007-12-04 | Membranpumpe mit zwei membranköpfen und zwei separaten pumpengehäusen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2057376A1 true EP2057376A1 (de) | 2009-05-13 |
EP2057376B1 EP2057376B1 (de) | 2012-11-28 |
Family
ID=39154052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07856361A Active EP2057376B1 (de) | 2007-01-25 | 2007-12-04 | Membranpumpe mit zwei membranköpfen und zwei separaten pumpengehäusen |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100316512A1 (de) |
EP (1) | EP2057376B1 (de) |
CN (1) | CN101680443A (de) |
DE (1) | DE102007003720B3 (de) |
WO (1) | WO2008089813A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103147965B (zh) * | 2013-03-11 | 2015-07-22 | 浙江奥利达气动工具股份有限公司 | 单级多头隔膜式气泵 |
CN103244394A (zh) * | 2013-05-10 | 2013-08-14 | 北京京城压缩机有限公司 | 一种单缸盖的隔膜式压缩机集成缸体部件 |
US10697447B2 (en) * | 2014-08-21 | 2020-06-30 | Fenwal, Inc. | Magnet-based systems and methods for transferring fluid |
CN104564623B (zh) * | 2015-01-14 | 2017-02-22 | 厦门坤锦电子科技有限公司 | 一种带有双隔膜的微型水泵 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2285215A (en) * | 1939-06-08 | 1942-06-02 | Binks Mfg Co | Fluid compressor |
US2748606A (en) * | 1951-11-30 | 1956-06-05 | Cornelius Co | Mechanical movement |
US2819013A (en) * | 1953-08-13 | 1958-01-07 | Cline Electric Mfg Co | Diaphragm compressor pump |
US3734579A (en) * | 1970-12-09 | 1973-05-22 | G Schumacher | Bearing housing assembly |
DE2446805A1 (de) * | 1974-10-01 | 1976-04-08 | Ott Kg Lewa | Pulsationsfrei arbeitende dosierpumpe |
US4008984A (en) | 1975-10-23 | 1977-02-22 | Scholle William R | Pump apparatus |
DE3046028A1 (de) * | 1980-12-06 | 1982-07-15 | LuK Lamellen und Kupplungsbau GmbH, 7580 Bühl | Membranpumpe |
DE9317083U1 (de) | 1993-11-09 | 1994-01-13 | Knf Neuberger Gmbh | Pumpe mit einem Antriebsmotor und einem Gehäuse |
DE4443778A1 (de) * | 1994-12-08 | 1996-06-20 | Abel Gmbh & Co | Doppelmembranpumpe |
US6443713B1 (en) * | 2000-10-18 | 2002-09-03 | Thomas Industries Inc. | Diaphragm pump with support ring |
DE10212239A1 (de) * | 2002-03-19 | 2003-10-09 | Knf Neuberger Gmbh | Pumpe |
US6865981B2 (en) * | 2003-03-11 | 2005-03-15 | Ingersoll-Rand Company | Method of producing a pump |
US20090068032A1 (en) * | 2005-05-10 | 2009-03-12 | Pendotech | Sanitary Diaphragm Pump for Critical Bioprocess Applications |
-
2007
- 2007-01-25 DE DE102007003720A patent/DE102007003720B3/de not_active Expired - Fee Related
- 2007-12-04 US US12/521,682 patent/US20100316512A1/en not_active Abandoned
- 2007-12-04 CN CN200780046828A patent/CN101680443A/zh active Pending
- 2007-12-04 EP EP07856361A patent/EP2057376B1/de active Active
- 2007-12-04 WO PCT/EP2007/010520 patent/WO2008089813A1/de active Search and Examination
Non-Patent Citations (1)
Title |
---|
See references of WO2008089813A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2057376B1 (de) | 2012-11-28 |
US20100316512A1 (en) | 2010-12-16 |
WO2008089813A1 (de) | 2008-07-31 |
CN101680443A (zh) | 2010-03-24 |
DE102007003720B3 (de) | 2008-08-21 |
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