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Open-centre valve block with two pump connections and associated auxiliary sliders on the main sliders
The invention relates to a valve block (10) comprising a plurality of main sliders (40), which are supplied in parallel with pressure fluid via a first and a second pump conduit (80; 81), the fluid stream, which flows in from the respective pump conduits (80; 81), being controllable by means of an associated first and second auxiliary slider (60; 61). All main sliders (40) are surrounded by a first and a second annular groove (46; 47) in the housing (20) so as to form an adjustable third main aperture (43) that connects the first annular groove to the second annular groove (46; 47), the first annular groove (46) of a first main slider being connected to the first pump connection, the first annular groove (46) of a second main slider being connected to the second pump connection, the second annular groove (47) of a third and of a fourth main slider being connected to a tank connection on the housing (20), furthermore, the first annular groove (46) of a main slider (40) being connected to the second annular groove (47) of an adjacent main slider (40), the third main aperture (43) becoming smaller when the first or the second main aperture (41; 42) of the same main slider (40) becomes larger.
Open-centre valve block with two pump connections and associated auxiliary sliders on the main sliders
The invention relates to a valve block (10) comprising a plurality of main sliders (40), which are supplied in parallel with pressure fluid via a first and a second pump conduit (80; 81), the fluid stream, which flows in from the respective pump conduits (80; 81), being controllable by means of an associated first and second auxiliary slider (60; 61). All main sliders (40) are surrounded by a first and a second annular groove (46; 47) in the housing (20) so as to form an adjustable third main aperture (43) that connects the first annular groove to the second annular groove (46; 47), the first annular groove (46) of a first main slider being connected to the first pump connection, the first annular groove (46) of a second main slider being connected to the second pump connection, the second annular groove (47) of a third and of a fourth main slider being connected to a tank connection on the housing (20), furthermore, the first annular groove (46) of a main slider (40) being connected to the second annular groove (47) of an adjacent main slider (40), the third main aperture (43) becoming smaller when the first or the second main aperture (41; 42) of the same main slider (40) becomes larger.
Open-centre valve block with two pump connections and associated auxiliary sliders on the main sliders
HEEMSKERK EDWIN (author) / HUPP WOLFGANG (author) / RIEGEL ENRICO (author) / FOTH WALDEMAR (author)
2015-06-10
Patent
Electronic Resource
English
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