Fluid handling – Systems – Multi-way valve unit
Patent
1979-01-24
1981-11-24
Rosenthal, Arnold
Fluid handling
Systems
Multi-way valve unit
251118, 251127, F16K 1106, F16K 4702
Patent
active
043018360
ABSTRACT:
A hot and cold water sanitary mixing set, comprises a housing having a flow control chamber with a central outlet passage connected from the control chamber to the outside of the housing and with separate hot and cold water supply passages connected into the bottom of the control chamber. A control valve assembly is mounted in the chamber and it comprises an assembly of discs which are arranged in superposed relationship so that one or more of them is movable relative to the others under the control of a single lever which is pivotally mounted in the housing and engages the control disc assembly to move them for control of the flow. The control valve assembly comprises at least three separate superposed discs including a bottom disc having a central discharge passage which overlies the central outlet and provides a flow passage for the discharge of a mixed quantity of water therethrough. The bottom disc has separate bottom hot and cold water passages defined therethrough which are alignable over the respective hot and cold water supply passages for the passage of the respective hot and cold water therethrough. An intermediate disc has an intermediate hot and cold water passage defined therethrough and is movable relative to the bottom disc to align a selected area portion of the respective intermediate hot and cold water passages with the selected area portion of the bottom hot and cold water passages so as to control the volume of the flow therethrough. A feature of the construction is that the top disc or an associated part of the top disc defines a recess above the intermediate disc which forms a through passage for the passage of the water from the respective hot and cold inlet passages into the discharge passage. The top discs are advantageously formed with baffle means or projections to extend into the through passage so as to provide interruptions therein which reduce the flow turbulence and noise of the mixing water.
REFERENCES:
patent: 3920043 (1975-11-01), Fowell
patent: 4157099 (1979-06-01), Delker et al.
patent: 4218041 (1980-08-01), Bernat
Aktiengesellschaft Karrer, Weber & Cie
Rosenthal Arnold
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