EP 1718866 A1 20061108 - THICK MATTER PISTON PUMP
Title (en)
THICK MATTER PISTON PUMP
Title (de)
KOLBEN-DICKSTOFFPUMPE
Title (fr)
POMPE A PISTON POUR LIQUIDES EPAIS
Publication
Application
Priority
- EP 2005000747 W 20050126
- DE 102004009362 A 20040226
Abstract (en)
[origin: WO2005085636A1] The invention relates to a multi-cylinder thick matter pump (1) which is used to continuously deliver especially concrete. Said thick matter pump comprises at least two delivery cylinders (3, 5) which transport the thick matter from a prefill tank (7) into a delivery pipe and a reversing valve (9) for alternately linking the delivery cylinders with the delivery pipe. The invention is characterized in that the reversing valve (9) comprises two pilot valves (15, 17) which can be displaced in a substantially translatory manner. Every pilot valve (15, 17) comprises a straight pipe section (15L, 17L) for linking the respective assigned delivery cylinder (3, 5) with the delivery pipe. Said pipe section can be linked with a manifold (19) in a pipe position downstream of the delivery cylinder. The invention also relates to a method for operating the inventive thick matter pump for continuous delivery.
IPC 8 full level
F04B 15/02 (2006.01)
CPC (source: EP KR US)
F04B 7/0053 (2013.01 - KR); F04B 7/008 (2013.01 - KR); F04B 9/109 (2013.01 - KR); F04B 15/02 (2013.01 - EP KR US); F04B 53/162 (2013.01 - KR); F05B 2210/11 (2013.01 - KR); F05B 2260/60 (2013.01 - KR); Y10S 417/90 (2013.01 - KR)
Citation (search report)
See references of WO 2005085636A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005085636 A1 20050915; AU 2005218110 A1 20050915; BR PI0507892 A 20070724; CA 2557152 A1 20050915; CN 100439703 C 20081203; CN 1946937 A 20070411; DE 102004009362 A1 20051006; DE 102004009362 B4 20080124; EP 1718866 A1 20061108; JP 2007524036 A 20070823; KR 100816029 B1 20080321; KR 20070007792 A 20070116; RU 2006132457 A 20080410; RU 2353802 C2 20090427; US 2008260560 A1 20081023
DOCDB simple family (application)
EP 2005000747 W 20050126; AU 2005218110 A 20050126; BR PI0507892 A 20050126; CA 2557152 A 20050126; CN 200580012886 A 20050126; DE 102004009362 A 20040226; EP 05701189 A 20050126; JP 2007500080 A 20050126; KR 20067017306 A 20060828; RU 2006132457 A 20050126; US 59061505 A 20050126