FI901568A0 - TVAOCYLINDER-TJOCKMASSAPUMP MED EN UPPSAMLINGSKOLV. - Google Patents

TVAOCYLINDER-TJOCKMASSAPUMP MED EN UPPSAMLINGSKOLV.

Info

Publication number
FI901568A0
FI901568A0 FI901568A FI901568A FI901568A0 FI 901568 A0 FI901568 A0 FI 901568A0 FI 901568 A FI901568 A FI 901568A FI 901568 A FI901568 A FI 901568A FI 901568 A0 FI901568 A0 FI 901568A0
Authority
FI
Finland
Prior art keywords
accumulator
pumping
piston
cylinder
uppsamlingskolv
Prior art date
Application number
FI901568A
Other languages
Finnish (fi)
Inventor
Friedrich Schwing
Wolfgang Merten
Original Assignee
Schwing Gmbh F
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schwing Gmbh F filed Critical Schwing Gmbh F
Publication of FI901568A0 publication Critical patent/FI901568A0/en

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)
  • Refuse Collection And Transfer (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Dram (AREA)
  • Display Devices Of Pinball Game Machines (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (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>
FI901568A 1989-03-29 1990-03-29 TVAOCYLINDER-TJOCKMASSAPUMP MED EN UPPSAMLINGSKOLV. FI901568A0 (en)

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
FI901568A0 true FI901568A0 (en) 1990-03-29

Family

ID=6377396

Family Applications (1)

Application Number Title Priority Date Filing Date
FI901568A FI901568A0 (en) 1989-03-29 1990-03-29 TVAOCYLINDER-TJOCKMASSAPUMP MED EN UPPSAMLINGSKOLV.

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)

* Cited by examiner, † Cited by third party
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
US8308470B2 (en) 2005-11-04 2012-11-13 University Of Southern California Extrusion of cementitious material with different curing rates
MX2008005842A (en) * 2005-11-04 2008-09-12 Univ Southern California Material delivery system using decoupling accumulator.
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
WO2015065198A1 (en) * 2013-10-29 2015-05-07 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE59007097D1 (en) 1994-10-20
DE3910189A1 (en) 1990-10-04
EP0389785A3 (en) 1991-01-16
CA2013356A1 (en) 1990-09-29
EP0389785B1 (en) 1994-09-14
RU2045686C1 (en) 1995-10-10
AU633550B2 (en) 1993-02-04
DD296992A5 (en) 1991-12-19
ATE111564T1 (en) 1994-09-15
ES2063180T3 (en) 1995-01-01
JPH02283872A (en) 1990-11-21
ZA902341B (en) 1990-12-28
AU5232990A (en) 1990-10-04
KR900014753A (en) 1990-10-24
EP0389785A2 (en) 1990-10-03

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Legal Events

Date Code Title Description
FD Application lapsed
MM Patent lapsed

Owner name: FRIEDRICH WILH. SCHWING GMBH