EP2194270A3 - Dosing pump - Google Patents
Dosing pump Download PDFInfo
- Publication number
- EP2194270A3 EP2194270A3 EP09013985A EP09013985A EP2194270A3 EP 2194270 A3 EP2194270 A3 EP 2194270A3 EP 09013985 A EP09013985 A EP 09013985A EP 09013985 A EP09013985 A EP 09013985A EP 2194270 A3 EP2194270 A3 EP 2194270A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- crankshaft
- connecting line
- rotational position
- dosing pump
- control
- 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
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- 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
- F04B43/04—Pumps having electric drive
-
- 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
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
-
- 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
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0042—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member
- F04B7/0053—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member for reciprocating distribution members
Abstract
Eine Dosierpumpe hat eine Kurbelwelle (30, 36; 150), zu deren Antrieb ein bidirektionaler Elektromotor (34; 141) vorgesehen ist. Von einem Exzenter (36; 154) der Kurbelwelle (30, 36; 150) wird eine Membran (50; 160) angetrieben, welche eine Wand eines Pumpenraums (32; 168) bildet und im Betrieb alternierend Saug- und Druckbewegungen ausführt. An diesen Pumpenraum (32; 168) sind eine erste Anschlussleitung (54; 204) und eine zweite Anschlussleitung (56; 170) angeschlossen, von denen die erste Anschlussleitung (54; 204) mit einem ersten, von der Drehstellung der Kurbelwelle (30, 36; 150) gesteuerten Ventil (26; 171) verbunden ist, das dazu ausgebildet ist, die Verbindung zu einem Vorratsbehälter (68; 208) für eine zu dosierende Flüssigkeit, insbesondere eine Harnstofflösung, zu steuern, und von denen die zweite Anschtussteitung (56; 170) mit einem zweiten, von der Drehstellung der Kurbelwelle (30, 36; 150) gesteuerten Ventil (28; 171) verbunden ist, das dazu ausgebildet ist, die Verbindung zu einem Verbraucher (80; 156) zu steuern. A metering pump has a crankshaft (30, 36, 150), to the drive of which a bidirectional electric motor (34, 141) is provided. An eccentric (36; 154) of the crankshaft (30, 36; 150) drives a diaphragm (50; 160) which forms a wall of a pump chamber (32; 168) and alternately performs suction and pressure movements during operation. A first connecting line (54, 204) and a second connecting line (56, 170) are connected to this pumping space (32, 168), of which the first connecting line (54, 204) is connected to a first, from the rotational position of the crankshaft (30, 36; 171) which is adapted to control the connection to a reservoir (68; 208) for a liquid to be metered, in particular a urea solution, and of which the second injection line (56 170) is connected to a second valve (28; 171) controlled by the rotational position of the crankshaft (30, 36; 150) and adapted to control communication with a consumer (80; 156).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202008016674 | 2008-12-05 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2194270A2 EP2194270A2 (en) | 2010-06-09 |
EP2194270A3 true EP2194270A3 (en) | 2011-09-21 |
EP2194270B1 EP2194270B1 (en) | 2013-06-12 |
Family
ID=41319473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09013985.8A Not-in-force EP2194270B1 (en) | 2008-12-05 | 2009-11-07 | Dosing pump |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2194270B1 (en) |
DE (1) | DE202009016915U1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011015110B3 (en) * | 2011-03-19 | 2012-01-26 | Ebm-Papst St. Georgen Gmbh & Co. Kg | dosing |
DE102011088679A1 (en) * | 2011-12-15 | 2013-06-20 | Robert Bosch Gmbh | pump unit |
US10584694B2 (en) * | 2016-02-09 | 2020-03-10 | Oridion Medical 1987 Ltd. | Miniature diaphragm pump with enlarged operation time |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3827489C1 (en) * | 1988-08-12 | 1989-10-12 | Gruenbeck Wasseraufbereitung Gmbh, 8884 Hoechstaedt, De | |
WO2002081918A1 (en) * | 2001-04-06 | 2002-10-17 | Knf Flodos Ag | Oscillating displacement pump |
WO2006040086A1 (en) * | 2004-10-13 | 2006-04-20 | L'orange Gmbh | Device for the metered injection of a reducing agent into the exhaust manifold of an internal combustion engine |
DE102004054238A1 (en) * | 2004-11-10 | 2006-05-11 | Robert Bosch Gmbh | Dosing system and method for operating a dosing system |
DE102005060127A1 (en) * | 2005-12-16 | 2007-06-21 | Daimlerchrysler Ag | Aerosol system, to give a dosed delivery of an air/liquid mixture into a motor exhaust, has a heater at the air feed and a mixing zone with separate air and liquid supply lines |
EP1413045B1 (en) * | 2001-08-01 | 2008-07-23 | EMB-Papst St. Georgen GmbH & Co. KG | Method for determining the numerical value for the duration of a periodically repeated pulse signal, and device for carrying out said method |
-
2009
- 2009-11-07 EP EP09013985.8A patent/EP2194270B1/en not_active Not-in-force
- 2009-12-04 DE DE202009016915U patent/DE202009016915U1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3827489C1 (en) * | 1988-08-12 | 1989-10-12 | Gruenbeck Wasseraufbereitung Gmbh, 8884 Hoechstaedt, De | |
WO2002081918A1 (en) * | 2001-04-06 | 2002-10-17 | Knf Flodos Ag | Oscillating displacement pump |
EP1413045B1 (en) * | 2001-08-01 | 2008-07-23 | EMB-Papst St. Georgen GmbH & Co. KG | Method for determining the numerical value for the duration of a periodically repeated pulse signal, and device for carrying out said method |
WO2006040086A1 (en) * | 2004-10-13 | 2006-04-20 | L'orange Gmbh | Device for the metered injection of a reducing agent into the exhaust manifold of an internal combustion engine |
DE102004054238A1 (en) * | 2004-11-10 | 2006-05-11 | Robert Bosch Gmbh | Dosing system and method for operating a dosing system |
DE102005060127A1 (en) * | 2005-12-16 | 2007-06-21 | Daimlerchrysler Ag | Aerosol system, to give a dosed delivery of an air/liquid mixture into a motor exhaust, has a heater at the air feed and a mixing zone with separate air and liquid supply lines |
Also Published As
Publication number | Publication date |
---|---|
DE202009016915U1 (en) | 2010-04-29 |
EP2194270B1 (en) | 2013-06-12 |
EP2194270A2 (en) | 2010-06-09 |
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