Tap with tap outflow

Abstract

A tap includes a tap outflow having a first channel and a second channel and a jet aerator in a housing. The jet aerator includes a jet breaker having a wall with liquid passage openings, a wire mesh layer included downstream of the jet breaker wall, an aeration chamber situated between the jet breaker and the wire mesh layer, and an air supply having an entrance that opens into the environment and an exit that opens into the aeration chamber. The tap outflow includes a coupling assembly situated upstream of the jet breaker wall. The outflow forms a liquid-tight connection between the first conduit and the jet breaker wall, such that liquid from the first channel is kept separate from liquid from the second channel upstream of the jet breaker wall.

What is claimed is: 
     
         1 . A tap provided with a tap outflow having a first channel and a second channel, wherein the tap outflow comprises:
 a first conduit which bounds the first channel;   a second conduit which bounds the second channel; and   a j et aerator provided with:
 a j et aerator housing which forms a downstream end of tap outflow, 
 a jet breaker with a jet breaker wall having liquid passage openings, which jet breaker is included in the jet aerator housing, 
 at least one wire mesh layer which is included downstream of the jet breaker wall in the jet aerator housing, 
 an aeration chamber which is situated between the jet breaker and the at least one wire mesh layer, 
 an air supply of which an entrance opens into the environment and of which an exit opens into the aeration chamber, 
 a coupling assembly which comprises a coupling part having therein an internal channel and to which the first conduit is connected, 
 wherein a first part of the jet breaker wall bounds an outlet of the first conduit and a second part of the jet breaker wall bounds an outlet of the second conduit, wherein the first part is provided with first liquid passage openings which form a passage for liquid from the first channel into the aeration chamber, and wherein the second part is provided with second liquid passage openings which form a passage for liquid from the second channel into the aeration chamber such that the first channel, in the tap upstream of the jet breaker, is kept separated from the second channel and such that the aeration chamber connects the first channel and the second channel in the tap downstream of the j et breaker, 
 wherein the first and second conduits are liquid-tight connected to the jet breaker wall such that the first and second conduits are completely separated from each other upstream of the jet breaker, 
 wherein the first liquid passage openings have an effective cross section smaller than a cross section of the first channel such that liquid supplied by the first channel turns into small accelerated liquid jets by the first liquid passage openings, 
 wherein the second liquid passage openings have an effective cross section smaller than a cross section of the second channel such that liquid supplied by the second channel turns into small accelerated liquid jets by the second liquid passage openings, 
 wherein both the first and the second liquid passage openings open into the aeration chamber, wherein the small accelerated liquid jets which are selectively formed by either the first or the second liquid passage openings of the jet breaker wall create a reduced pressure in the aeration chamber as a result of which ambient air is drawn in via the air supply, 
 wherein the at least one wire mesh layer is configured such that, in use, both liquid coming from the first channel and liquid coming from the second channel passes through the at least one wire mesh layer, 
 wherein the coupling assembly is situated upstream of the jet breaker wall and wherein the coupling part forms a liquid-tight connection between the first conduit and the jet breaker wall, wherein the coupling assembly is configured such that liquid from the first channel in use is guided exclusively via the internal channel in the coupling assembly to the first part of the jet breaker wall and thereupon is only dispensed via the first liquid passage openings, and such that liquid from the second channel is guided exclusively to the second part of the jet breaker wall and thereupon is only dispensed via the second liquid passage openings, whereby with alternate tapping via either the first channel or the second channel, reflux of liquid upstream the jet breaker wall from one of the first and the second channels into the other one of the first and the second channels is prevented.