EP 0736140 B1 19971210 - SLIDE VALVE FOR A TWIN-CYLINDER PUMP FOR VISCOUS FLUIDS
Title (en)
SLIDE VALVE FOR A TWIN-CYLINDER PUMP FOR VISCOUS FLUIDS
Title (de)
SCHIEBERVORRICHTUNG FÜR EINE ZWEIZYLINDER-DICKSTOFFPUMPE
Title (fr)
DISTRIBUTEUR A TIROIR POUR POMPE A MATIERES EPAISSES A DEUX CYLINDRES
Publication
Application
Priority
- DE 4344632 A 19931224
- EP 9403250 W 19940929
Abstract (en)
[origin: WO9518304A1] The invention concerns a slide valve for a two-cylinder pump, in particular a truck-mounted concrete pump. The slide valve (20) has an essentially C-shaped swing pipe (16) which is connected at the upper end by a rotating joint to a discharge line and is mounted so that it can be rotated by a switchover mechanism about an axis which is essentially parallel to the axes of the pump cylinders (10) in such a way that its lower end, which is fitted with a wearing ring (28), is connected alternately to the apertures (22) at the ends of the pump cylinders connected to the rear wall of a feed tank (14). In order to enable the swing pipe (16) to swing through a large distance, the swing drive cylinders (52), which are preferably designed as piston/cylinder units, are mounted in ball sockets located at the cylinder bearings (48, 56) and their axes of operation include between them an obtuse angle facing the rear wall (24). In addition, the valve is fitted with a switchover lever (46) which has at the discharge end a support arm (64) on which rests an extension pipe (42) connected to the discharge end of the upper end of the swing pipe.
IPC 1-7
IPC 8 full level
F04B 15/02 (2006.01); F04B 7/00 (2006.01); F04B 7/02 (2006.01)
CPC (source: EP KR US)
F04B 7/0096 (2013.01 - EP US); F04B 7/02 (2013.01 - KR); F04B 7/0258 (2013.01 - EP US); Y10T 137/86855 (2015.04 - EP US); Y10T 137/87804 (2015.04 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DE 4344632 A1 19950629; DE 59404794 D1 19980122; EP 0736140 A1 19961009; EP 0736140 B1 19971210; ES 2111335 T3 19980301; JP H09506948 A 19970708; KR 960706608 A 19961209; US 5746247 A 19980505; WO 9518304 A1 19950706
DOCDB simple family (application)
DE 4344632 A 19931224; DE 59404794 T 19940929; EP 9403250 W 19940929; EP 94928398 A 19940929; ES 94928398 T 19940929; JP 51702895 A 19940929; KR 19960703300 A 19960621; US 64810696 A 19960516