is also provided between the mixing chamber 5 and the Finally, some further possibilities for the construction of distributor mouthpiece 7. This perforated element can be the outlet element constructed as a distributor mouthpiece formed in the case of FIG. 5 by a punched plate 15 and in are illustrated with the aid of FIGS. 8 and 9. the case of FIG. 6 by a wire mesh or screen 16. In both FIG. 8 shows an embodiment of the distributor mouthembodiments this perforated element 15 or 16 respectively 5 piece r with one single outlet opening 8' which has a is built into the annular sealing member 14. In an optimal cross-section which can be adjusted as regards shape and manner this perforated element 15 or 16 ensures an size. The latter can be achieved in that a perforated adjusting extremely good uniformity of the sizes of the drops of liquid. piate 21 can be provided like an adjusting plate approxiBy contrast with the embodiment described and illustrated mately in the region before this outlet orifice 8' and can with the aid of Figure, the embodiment of the injector nozzle 10 either be turned or moved transversely or radially in order to 1"' in FIG. 5 has a further special feature, in that there the adjust the nozzle outlet opening 8' or the cross-section dosaging nozzle element 2', which is again disposed replace- thereof in the desired manner.
ably in the threaded bore 10 and fixed by the threaded -piG. 9 shows an embodiment in which the outlet element
adapter 11, can be constructed essentially in the form of a which is again constructed as a distributor mouthpiece 7"
nozzle plate surrounded by an O ring 17 which can be made has several outlet orifices 8" which can be aligned so that
from a resilient sealing material and aligns this dosaging wim respect to the longitudinal axis la of the nozzle they
nozzle element 2' with its nozzle orifice 2'a coaxially with diverge outwards relative to one another,
the longitudinal axis V"a of the nozzle, so that here too a AlsQ ^ d tQ these sMe constmctions iUus.
type of self-centermg can be achieved. ^ with the ^ of HGS g ^ 9 for the nozzle QUtlet
In FIG. 7 an embodiment of the injector nozzle is shown 2Q orince 0r orifices 8' or 8" it may be emphasised that these in which the homogenizing and stabilizing chamber 13constructions of the distributor mouthpiece 7' or 7" can be
between the mixing chamber 5 and the distributor mouth- combined with all other previously described embodiments
piece 7 can be kept particularly small, but also is greatly of the injector nozzle according to the invention,
enlarged relative to the outlet cross-section of the mixing I claim:
chamber 5. In this case too it may again be assumed that 1. An injector nozzle construction for producing air-filled
between the mixing chamber 5 and the distributor mouth- 25 drops of liquid comprising:
piece 7 there is provided a perforated element (preferably a a dosaging nozzle element having a nozzle orifice aligned
wire mesh 16 or punched plate 15) which—as in FIGS. 5 and coaxially with a central longitudinal axis of said nozzle
6— can be built into the annular sealing member 14. The construction for producing a jet of liquid in a downadvantages of the injector nozzle according to the invention stream direction along said axis;
can also be achieved with this embodiment, and in this case a mixing chamber arranged immediately downstream of
a particularly compact and space-saving construction is also said dosaging nozzle element having a fluid inlet
provided. aligned coaxially with said nozzle orifice for receiving
In the embodiment of the injector nozzle according to said liquid, at least one air intake opening for intro
FIG. 7 a further special feature should be mentioned. 35 ducing air into said chamber to produce a liquid/air
According to this the air intake opening 6 can also be mixture, and an outlet of predetermined cross-sectional
protected by a cover 18 which preferably—as shown in FIG. size for discharging said liquid/air mixture from said
7— is constructed in the form of an annular plate which mixing chamber, said mixing chamber conically widcovers a type of annular chamber or annular gap 18a and can ening in a direction toward said outlet;
be integrated in an axial extension of the socket-like fixing ^ m outlet element having at least one outlet orifice spaced
part 19 of the bayonet closure 9 or in the case of another longitudinally downstream of said mixing chamber for
construction of the rapid closure system for the distributor expelling said liquid/air mixture; and
mouthpiece 7 it can also be integrated in a lock nut or a homogenizing wd stabiiizing chamber between said
connecting nut. Any hquid particles flowing back can be ^ chamber ^ said ouflet ... said h
collected on such a cover 18 of the air intake opening 6 so 45 enizi ^ stabilizing chamber having m inlet com.
that a separate non-return valve with the associated opera- municating directly with said outlet of said mixing
tional disadvantages can be avoided there m a simple chamber and having a cross-sectional size substantially
manner. greater than said cross-sectional size of said mixing
With regard to the structural design in the region of the air chamber outlet,
intake opening 6 reference may again be made to the 50 2. The injector nozzle construction of claim 1 wherein the
embodiment illustrated with the aid of FIG. 4. An additional size 0f sajd inlet of said homogenizing and stabilizing
possibility is given there of how the air intake opening 6 of chamber is about 1.5 to 9 times greater than the size of said
the mixing chamber 5 can be connected to an arrangement, outlet of said mixing chamber.
preferably to a throttle device 20, for altering the quantity of 3. The injector nozzle construction of claim 1 wherein the
air drawn in. This throttle device which is shown at 20 can 55 sjze 0f sajd inlet of said homogenizing and stabilizing
naturally also be formed by any other suitable arrangement chamber is about 3 to 5 times greater than the size of said
which permits a corresponding alteration or control of the outlet of said mixing chamber.
quantity of air to be drawn in. 4 The injector nozzle construction of claim 1 wherein
In relation to these possible constructions in the region of said mixing chamber has a predetermined length and said
the air intake opening 6 which have explained above with 60 homogenizing and stabilizing chamber has a predetermined
the aid of FIGS. 7 and 4 it may be explicitly emphasized that overall length which is relatively greater than the length of
these possible constructions are associated not only with the said mixing chamber.
embodiments of the injector nozzle explained with the aid of 5. The injector nozzle construction of claim 1 wherein
FIGS. 7 and 4 with the special forms of the homogenizing said homogenizing and stabilizing chamber includes an
and stabilizing chamber, but that they can also be combined 65 annular rear portion encircling said mixing chamber,
with all other described embodiments of the injector nozzle 6. The injector nozzle construction of claim 1 wherein
according to the invention. said homogenizing and stabilizing chamber has a space that