ZA902341B - A two-cylinder thick matter pump having a piston shortage - Google Patents
A two-cylinder thick matter pump having a piston shortageInfo
- Publication number
- ZA902341B ZA902341B ZA902341A ZA902341A ZA902341B ZA 902341 B ZA902341 B ZA 902341B ZA 902341 A ZA902341 A ZA 902341A ZA 902341 A ZA902341 A ZA 902341A ZA 902341 B ZA902341 B ZA 902341B
- Authority
- ZA
- South Africa
- Prior art keywords
- piston
- accumulator
- pumping
- cylinder
- shortage
- Prior art date
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
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
-
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
-
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
- F04B9/105—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Display Devices Of Pinball Game Machines (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Dram (AREA)
- Fluid-Pressure Circuits (AREA)
- Refuse Collection And Transfer (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
On a two-cylinder slurry pump with piston accumulator which is filled during pumping of the slurry by the pumping cylinders and emptied by the hydraulically controlled accumulator piston between the strokes of the pumping pistons into the pumping pipeline in order to prevent the drop in pressure and incorrect delivery quantity in the pumping pipeline, it is proposed according to the invention that a bilaterally hydraulically actuatable working piston (8) serve for hydraulic control (2) of the accumulator piston (10), which working piston is controlled with the pumping cylinders and whose limit positions are fixed on the accumulator drive cylinder (7) with the limit positions of the accumulator piston (10) when the accumulator cylinder (4) is fully emptied and when it is filled. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3910189A DE3910189A1 (en) | 1989-03-29 | 1989-03-29 | TWO-CYLINDER FUEL PUMP WITH PISTON ACCUMULATOR |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA902341B true ZA902341B (en) | 1990-12-28 |
Family
ID=6377396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA902341A ZA902341B (en) | 1989-03-29 | 1990-03-27 | A two-cylinder thick matter pump having a piston shortage |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0389785B1 (en) |
JP (1) | JPH02283872A (en) |
KR (1) | KR900014753A (en) |
AT (1) | ATE111564T1 (en) |
AU (1) | AU633550B2 (en) |
CA (1) | CA2013356A1 (en) |
DD (1) | DD296992A5 (en) |
DE (2) | DE3910189A1 (en) |
ES (1) | ES2063180T3 (en) |
FI (1) | FI901568A0 (en) |
RU (1) | RU2045686C1 (en) |
ZA (1) | ZA902341B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04134673U (en) * | 1991-06-07 | 1992-12-15 | 株式会社フジタ | Concrete pumping pressure fluctuation prevention device |
DE4224162A1 (en) * | 1992-07-22 | 1994-01-27 | Korthaus Ernst | Concrete distribution system |
DE4336087A1 (en) * | 1993-10-22 | 1995-04-27 | Korthaus Ernst | Thick-matter accumulator |
US7841849B2 (en) | 2005-11-04 | 2010-11-30 | University Of Southern California | Dry material transport and extrusion |
AU2006308628B2 (en) * | 2005-11-04 | 2012-03-22 | University Of Southern California | Material delivery system using decoupling accumulator |
US8308470B2 (en) | 2005-11-04 | 2012-11-13 | University Of Southern California | Extrusion of cementitious material with different curing rates |
CN102094779B (en) * | 2010-12-28 | 2012-01-04 | 长沙中联重工科技发展股份有限公司 | Concrete pump and method for adjusting driving pressure value for swinging actuator in concrete pump |
MX2016005679A (en) * | 2013-10-29 | 2016-10-28 | Thermtech Holdings As | System for feeding and pumping of less pumpable material in a conduit line. |
DE102014212021A1 (en) * | 2014-06-23 | 2015-12-24 | Putzmeister Solid Pumps Gmbh | Apparatus and method for damping pressure fluctuations in the delivery line of a slurry pump |
CN110821775B (en) * | 2019-09-27 | 2021-10-15 | 日昌升建筑新材料设计研究院有限公司 | Multi-cylinder parallel type mine tailing slurry hydraulic pumping system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT234514B (en) * | 1961-08-17 | 1964-07-10 | Martin Sebastiani | Thick matter or mortar pump |
DE2052583A1 (en) * | 1970-10-27 | 1972-05-04 | Bors, Heinz J., Campione (Schweiz) | Device for conveying viscous substances, especially concrete, mortar and the like |
US3963385A (en) * | 1975-05-05 | 1976-06-15 | Caban Angel M | Valve assembly for concrete pumps |
GB2119865A (en) * | 1982-03-27 | 1983-11-23 | John Harbridge | Piston pump or transformer |
-
1989
- 1989-03-29 DE DE3910189A patent/DE3910189A1/en not_active Withdrawn
-
1990
- 1990-02-20 AT AT90103245T patent/ATE111564T1/en not_active IP Right Cessation
- 1990-02-20 ES ES90103245T patent/ES2063180T3/en not_active Expired - Lifetime
- 1990-02-20 EP EP90103245A patent/EP0389785B1/en not_active Expired - Lifetime
- 1990-02-20 DE DE59007097T patent/DE59007097D1/en not_active Expired - Fee Related
- 1990-03-27 ZA ZA902341A patent/ZA902341B/en unknown
- 1990-03-28 AU AU52329/90A patent/AU633550B2/en not_active Ceased
- 1990-03-28 DD DD90339162A patent/DD296992A5/en not_active IP Right Cessation
- 1990-03-28 RU SU904743431A patent/RU2045686C1/en active
- 1990-03-28 CA CA002013356A patent/CA2013356A1/en not_active Abandoned
- 1990-03-29 JP JP2084736A patent/JPH02283872A/en active Pending
- 1990-03-29 FI FI901568A patent/FI901568A0/en not_active IP Right Cessation
- 1990-03-29 KR KR1019900004457A patent/KR900014753A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ATE111564T1 (en) | 1994-09-15 |
EP0389785A3 (en) | 1991-01-16 |
DD296992A5 (en) | 1991-12-19 |
CA2013356A1 (en) | 1990-09-29 |
DE59007097D1 (en) | 1994-10-20 |
DE3910189A1 (en) | 1990-10-04 |
AU633550B2 (en) | 1993-02-04 |
ES2063180T3 (en) | 1995-01-01 |
AU5232990A (en) | 1990-10-04 |
KR900014753A (en) | 1990-10-24 |
JPH02283872A (en) | 1990-11-21 |
RU2045686C1 (en) | 1995-10-10 |
FI901568A0 (en) | 1990-03-29 |
EP0389785B1 (en) | 1994-09-14 |
EP0389785A2 (en) | 1990-10-03 |
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