EP0012467A1 - Pompe - Google Patents
Pompe Download PDFInfo
- Publication number
- EP0012467A1 EP0012467A1 EP79200708A EP79200708A EP0012467A1 EP 0012467 A1 EP0012467 A1 EP 0012467A1 EP 79200708 A EP79200708 A EP 79200708A EP 79200708 A EP79200708 A EP 79200708A EP 0012467 A1 EP0012467 A1 EP 0012467A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- piston
- pump
- inlet
- outlet
- 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
Images
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
- F04B3/00—Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage
-
- 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
- F04B13/02—Pumps specially modified to deliver fixed or variable measured quantities of two or more fluids at the same time
Definitions
- the present invention relates to a pump, more particularly to a pump intended for metering and mixing a relatively thick fluid, or a suspension of solid particles in a liquid with, for example, another liquid.
- the pump according to the present invention comprises a cylinder having a first and a second inlet and an outlet, means for closing communication between the cylinder and the outlet, and, inside the cylinder, two movable pistons each having at least one port provided with one or more valves.
- communication between the cylinder and either the first inlet or the outlet is closed by a distributor valve, and at least one of the pistons is provided with a non-return valve.
- one piston has a port which is closable by a spring-loaded valve.
- the Pump comprises a cylinder 1 in which two pistons 2 and 3 may reciprocate.
- Piston 2 is mounted on a piston-rod 4
- piston 3 is mounted on a tube 5 coaxial with the piston rod 4.
- Piston-rod 4 and tube 5 are actuated independently by means not represented (for example by air cylinders). In another embodiment, they are actuated and synchronised by cams. Adjustable stops limit the piston stroke.
- Piston 2 is provided with a central port which is normally held closed by a valve 6 by means of the tension on a spring coaxial with piston-rod 4.
- piston 2 is mounted on piston-rod 4 and the valve 6 is actuated by independent means.
- Piston 3 comprises several ports having non-return valves which enable a liquid to flow only from right to left in the drawing.
- Cylinder 1 comprises two inlets preferably under adequate pressure, a first one 8 for a thick fluid or a suspension and a second one 9 for a liquid.
- the cylinder also comprises an outlet 10 through which the resulting mixture or diluate flows.
- a rotatable distributor valve 11 opens a port at the end of the cylinder (left on the drawing), thus enabling the cylinder to communicate either with the first inlet 9 (as shown in Figure 1) or with the outlet 10 (as shown in Figure 2).
- This distributor valve is actuated in synchronism with the movement of the pistons 2 and 3 by means not represented.
- the first inlet 8 is provided with a non-return valve which enables fluid to flow into the cylinder, but prevents it from flowing out through the inlet.
- Outlet 10 is provided with a non-return valve which enables the resulting mixture or diluate to flow out of the cylinder but stops suction in.
- Distributor valve 11 then leaves a communication between cylinder 1 and outlet 10 ( Figure 2) and the pistons move the other way (i.e. from right to left in the drawing).
- the non-return valves 7 close and piston-rod 4 opens valve 6.
- 12a and 12b may be regarded as two parts of one cylinder 12 at right angle to each other.
- the pump comprises two inlets preferably under adequate pressure, the first, 13, for a thick fluid or a suspension and the second, 14, for a liquid.
- It also comprises an outlet 16 through which the resulting mixture or diluate flows, a rotatable distributor valve 17 opening a port at the end of the part 12b (left on the drawing), thus providing communication between the cylinder and either the inlet 13 (as shown in Figure 3) or the outlet 16 (as shown in Figure 4).
- This distributor valve is actuated in synchronism with the movements of piston 18 reciprocating in the part 12a of the cylinder and of piston 19 reciprocating in the part 12b of the cylinder.
- the piston 18 is mounted on a piston rod 20 and is actuated by means (not represented) such as for example an air cylinder connected to the piston rod 20.
- the piston 19 is mounted on a piston rod 21 and is normally held at the right end of the part 12b of the cylinder by means of the tension of a coil spring coaxial with the piston rod 21. Stops limit the travel of the pistons.
- the piston 18 has several ports provided with non-return valves which only enable a liquid to flow through the piston when the latter is moving upwards.
- the piston 19 has a central port provided with a valve 22 which is normally held closed by a coil spring. This valve 22 is connected to a plate 23 located in a chamber inside the piston; the chamber communicates with the part 12b of the cylinder by ports in the right hand wall of the piston.
- the distributor valve 17 is then turned in the position shown in Figure 4, providing a communication between cylinder 12 and outlet 16.
- the piston 18 moves downwards, its non-return valves close, liquid is drawn into the cylinder through inlet 14 and piston 19 is moved to the left by the liquid between pistons 18 and 19 until it reaches its left stop.
- Pressure of the liquid on the plate 23 then opens the valve 22 ( Figure 4) and the liquid passes through the central port of the piston 19 towards the outlet 16.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Accessories For Mixers (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7848526 | 1978-12-14 | ||
GB4852678 | 1978-12-14 | ||
GB7901504 | 1979-01-16 | ||
GB7901504 | 1979-01-16 | ||
GB7928618A GB2038929B (en) | 1978-12-14 | 1979-08-16 | Mixing pump |
GB7928618 | 1979-08-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0012467A1 true EP0012467A1 (fr) | 1980-06-25 |
EP0012467B1 EP0012467B1 (fr) | 1982-05-12 |
Family
ID=27260643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19790200708 Expired EP0012467B1 (fr) | 1978-12-14 | 1979-12-03 | Pompe |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0012467B1 (fr) |
CA (1) | CA1160101A (fr) |
DE (1) | DE2962850D1 (fr) |
DK (1) | DK147605C (fr) |
ES (1) | ES486844A1 (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0054198A1 (fr) * | 1980-12-16 | 1982-06-23 | Societe Des Produits Nestle S.A. | Pompe |
WO1987005697A1 (fr) * | 1986-03-11 | 1987-09-24 | On Computer Electronics A/S | Dispositif et procede pour le dosage de liquide |
EP0303861A1 (fr) * | 1987-08-20 | 1989-02-22 | Deutsche Tecalemit GmbH | Appareil de distribution de produits à base d'huiles minérales |
GB2318836A (en) * | 1993-12-10 | 1998-05-06 | White Consolidated Ind Inc | Method of dispensing viscous material |
US6394772B1 (en) | 1999-07-29 | 2002-05-28 | Bent Johan Larsen | Oil transfer pump |
CN103291576A (zh) * | 2013-05-13 | 2013-09-11 | 嘉善海力达工具有限公司 | 套缸式高低压柱塞泵 |
CN104895756A (zh) * | 2015-05-29 | 2015-09-09 | 四川泛水基电液机械有限责任公司 | 一种新型超高压流体泵 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2553849C1 (ru) * | 2014-02-10 | 2015-06-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Вологодская государственная молочнохозяйственная академия имени Н.В. Верещагина" | Поршневой насос-дозатор |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR451277A (fr) * | 1912-08-21 | 1913-04-15 | William Mortimer Melmore | Perfectionnements dans les appareils à comprimer l'air ou les gaz |
DE575142C (de) * | 1926-07-30 | 1933-04-24 | George Dean | Kolbenfluessigkeitsmesspumpe |
US2365234A (en) * | 1940-09-17 | 1944-12-19 | Sullivan Machinery Co | Pump mechanism |
US2497300A (en) * | 1947-01-29 | 1950-02-14 | Du Pont | Floating piston pump |
GB651482A (en) * | 1945-07-11 | 1951-04-04 | Humphrey S Railways Inc | Improvements in or relating to reciprocating pumps |
DE1173805B (de) * | 1959-10-02 | 1964-07-09 | Bran & Luebbe | Tauchkolbendosierpumpe zum Foerdern und Vermischen von zwei Fluessigkeiten |
CH492601A (de) * | 1968-08-21 | 1970-06-30 | Benz & Hilgers Gmbh | Fülleinrichtung zum dosierten Abfüllen von weichplastischen Stoffen |
DE2455430A1 (de) * | 1973-11-07 | 1975-05-28 | Gustav Bernard Mielitz | Kolben-zylinder-einheit |
US4093108A (en) * | 1974-07-11 | 1978-06-06 | Carl Schleicher & Schull | Syringe adapted to overcome a pressure resistance |
-
1979
- 1979-11-14 DK DK481979A patent/DK147605C/da not_active IP Right Cessation
- 1979-12-03 EP EP19790200708 patent/EP0012467B1/fr not_active Expired
- 1979-12-03 DE DE7979200708T patent/DE2962850D1/de not_active Expired
- 1979-12-13 ES ES486844A patent/ES486844A1/es not_active Expired
- 1979-12-13 CA CA000341856A patent/CA1160101A/fr not_active Expired
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR451277A (fr) * | 1912-08-21 | 1913-04-15 | William Mortimer Melmore | Perfectionnements dans les appareils à comprimer l'air ou les gaz |
DE575142C (de) * | 1926-07-30 | 1933-04-24 | George Dean | Kolbenfluessigkeitsmesspumpe |
US2365234A (en) * | 1940-09-17 | 1944-12-19 | Sullivan Machinery Co | Pump mechanism |
GB651482A (en) * | 1945-07-11 | 1951-04-04 | Humphrey S Railways Inc | Improvements in or relating to reciprocating pumps |
US2497300A (en) * | 1947-01-29 | 1950-02-14 | Du Pont | Floating piston pump |
DE1173805B (de) * | 1959-10-02 | 1964-07-09 | Bran & Luebbe | Tauchkolbendosierpumpe zum Foerdern und Vermischen von zwei Fluessigkeiten |
CH492601A (de) * | 1968-08-21 | 1970-06-30 | Benz & Hilgers Gmbh | Fülleinrichtung zum dosierten Abfüllen von weichplastischen Stoffen |
DE2455430A1 (de) * | 1973-11-07 | 1975-05-28 | Gustav Bernard Mielitz | Kolben-zylinder-einheit |
US4093108A (en) * | 1974-07-11 | 1978-06-06 | Carl Schleicher & Schull | Syringe adapted to overcome a pressure resistance |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0054198A1 (fr) * | 1980-12-16 | 1982-06-23 | Societe Des Produits Nestle S.A. | Pompe |
WO1987005697A1 (fr) * | 1986-03-11 | 1987-09-24 | On Computer Electronics A/S | Dispositif et procede pour le dosage de liquide |
EP0303861A1 (fr) * | 1987-08-20 | 1989-02-22 | Deutsche Tecalemit GmbH | Appareil de distribution de produits à base d'huiles minérales |
GB2318836A (en) * | 1993-12-10 | 1998-05-06 | White Consolidated Ind Inc | Method of dispensing viscous material |
GB2318837A (en) * | 1993-12-10 | 1998-05-06 | White Consolidated Ind Inc | Dispenser for viscous material |
GB2318837B (en) * | 1993-12-10 | 1998-07-15 | White Consolidated Ind Inc | Viscous material dispenser and method for dispensing |
GB2318836B (en) * | 1993-12-10 | 1998-07-15 | White Consolidated Ind Inc | Viscous material dispenser and method for dispensing |
US6394772B1 (en) | 1999-07-29 | 2002-05-28 | Bent Johan Larsen | Oil transfer pump |
CN103291576A (zh) * | 2013-05-13 | 2013-09-11 | 嘉善海力达工具有限公司 | 套缸式高低压柱塞泵 |
CN103291576B (zh) * | 2013-05-13 | 2016-04-13 | 嘉善海力达工具有限公司 | 套缸式高低压柱塞泵 |
CN104895756A (zh) * | 2015-05-29 | 2015-09-09 | 四川泛水基电液机械有限责任公司 | 一种新型超高压流体泵 |
Also Published As
Publication number | Publication date |
---|---|
DK147605C (da) | 1985-04-22 |
CA1160101A (fr) | 1984-01-10 |
DK147605B (da) | 1984-10-15 |
DE2962850D1 (en) | 1982-07-01 |
ES486844A1 (es) | 1980-05-16 |
EP0012467B1 (fr) | 1982-05-12 |
DK481979A (da) | 1980-06-15 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed | ||
AK | Designated contracting states |
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