IT1046981B - Twin cylinder reciprocating pump for concrete - has hydraulic valve mechanism timing valve and cylinder stokes - Google Patents

Twin cylinder reciprocating pump for concrete - has hydraulic valve mechanism timing valve and cylinder stokes

Info

Publication number
IT1046981B
IT1046981B IT5359674A IT5359674A IT1046981B IT 1046981 B IT1046981 B IT 1046981B IT 5359674 A IT5359674 A IT 5359674A IT 5359674 A IT5359674 A IT 5359674A IT 1046981 B IT1046981 B IT 1046981B
Authority
IT
Italy
Prior art keywords
cylinders
valve
concrete
hydraulic
cylinder
Prior art date
Application number
IT5359674A
Other languages
Italian (it)
Original Assignee
Fogt Indmasch
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 Fogt Indmasch filed Critical Fogt Indmasch
Priority to IT5359674A priority Critical patent/IT1046981B/en
Priority to GB4783474A priority patent/GB1452561A/en
Priority to ES1974207363U priority patent/ES207363Y/en
Priority to US05/523,017 priority patent/US3994627A/en
Priority to DE2454290A priority patent/DE2454290C3/en
Priority to FR7437644A priority patent/FR2251733B1/fr
Priority to DE2462651A priority patent/DE2462651C3/en
Priority to CA213,891A priority patent/CA1008300A/en
Priority to JP13244574A priority patent/JPS5644268B2/ja
Priority to DE19762653021 priority patent/DE2653021A1/en
Application granted granted Critical
Publication of IT1046981B publication Critical patent/IT1046981B/en

Links

Abstract

The pump has two vertical cylinders containing pistons. Both cylinders open in to a common chamber with inlet and discharge openings and a changeover vane valve which puts the cylinders alternately into communication with the inlet and discharge. The pistons are moved by two hydraulic cylinders sliding on rods. Each hydraulic cylinder has a lug which operates a switch at the end of the discharge stroke which operates the main hydraulic valve to change over the concrete valve and reverse the operation of the hydraulic cylinders. The cylinders are connected by a cable so that the piston performing the downstroke pulls the other one up for its suction stroke. The hydraulic system ensures that the piston movements are not reversed until the concrete discharge valve has changed over.
IT5359674A 1973-11-16 1974-10-17 Twin cylinder reciprocating pump for concrete - has hydraulic valve mechanism timing valve and cylinder stokes IT1046981B (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
IT5359674A IT1046981B (en) 1974-10-17 1974-10-17 Twin cylinder reciprocating pump for concrete - has hydraulic valve mechanism timing valve and cylinder stokes
GB4783474A GB1452561A (en) 1973-11-16 1974-11-05 Apparatus for pumping wet concrete
ES1974207363U ES207363Y (en) 1973-11-16 1974-11-11 PUMPING APPARATUS FOR CONCRETE WITH EXCESS OF WATER.
US05/523,017 US3994627A (en) 1973-11-16 1974-11-12 Pumping apparatus for wet concrete
DE2454290A DE2454290C3 (en) 1973-11-16 1974-11-15 concrete pump
FR7437644A FR2251733B1 (en) 1973-11-16 1974-11-15
DE2462651A DE2462651C3 (en) 1973-11-16 1974-11-15 concrete pump
CA213,891A CA1008300A (en) 1973-11-16 1974-11-15 Pumping apparatus for wet concrete
JP13244574A JPS5644268B2 (en) 1973-11-16 1974-11-16
DE19762653021 DE2653021A1 (en) 1973-11-16 1976-11-22 Twin cylinder reciprocating pump for concrete - has hydraulic operating cylinders fed through two hydraulic valve cylinders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5359674A IT1046981B (en) 1974-10-17 1974-10-17 Twin cylinder reciprocating pump for concrete - has hydraulic valve mechanism timing valve and cylinder stokes

Publications (1)

Publication Number Publication Date
IT1046981B true IT1046981B (en) 1980-09-10

Family

ID=11283958

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5359674A IT1046981B (en) 1973-11-16 1974-10-17 Twin cylinder reciprocating pump for concrete - has hydraulic valve mechanism timing valve and cylinder stokes

Country Status (1)

Country Link
IT (1) IT1046981B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1985866A1 (en) * 2007-04-26 2008-10-29 Services Pétroliers Schlumberger A rotary distributor for pressure multiplier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1985866A1 (en) * 2007-04-26 2008-10-29 Services Pétroliers Schlumberger A rotary distributor for pressure multiplier

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