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Патент USA US2120490

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June 14, 1938. ,
Filed Oct. 10- 1936
Patented June 14, 1938 '
_ ~ ' 2,120,490
' noun)
Roy Macgregor Drummond, London, ‘England
Application October 10, 1936, Serial No. 105,134‘
In Great Britain October 29, 1935
50laims. (Cl. 261-419)
a curved lower end. 0'.
The present invention'relates to apparatus for . tending baille c
The lower partof
vchamber contains oil, but
purifying or washing air or other gas or for cool
the lower part-c’ oi'the-baille does not come into
ing a liquid.
The invention is capable of being applied in contact with this oil The suction of. the engine
5. a wide variety of ways. It may, for example, be draws the air beneath-this baille, and a ‘trough .
used in connectionwith air conditioning or smoke dis formed in the oili'on one side of the ba?le
and a crest e on the other side of the ba?le. The
‘ abatement plants or for purifying the air sup
' plied to the carburetters of internal combustion
air drivesa ?ne spray-{from the crest e which .
engines. In this latter capacity the invention is‘ mingles with and absorbs the dust and grit in the
10 particularly applicable'to the cleansing of the air _ -air. This spray impinges against a curved
supplied to aeroplane engines when ?ying over ' scrubber gauze f which'vjr'emoves the last traces
The grit and other impuri
‘ sandy or dusty country. The invention ‘is also of grit from the
applicable to the cooling of liquids supplied to ties form a residue 9 at the bottom of the cham- ‘
the circulating system of an internaicombustion ber-a from which they can be removed by with
15 engine.
drawal' of a plug h. ‘ Any‘ atomized oil remaining _ 15
The method consists in its simplest form" in
in the air is removed by contact with an elimi- nator 7' whichis in the form/of a casing'contain- .
the creation of a wave in a liquid-containing ves
ing a plurality of superposed metal plates is ar-_
ranged in zig-zag fashion, as shown in Fig. 2.
This 011 falls down throughv an aperture linto 20
sel and in the conversion of the crest of such’
_ 1, wave into a spray through which the gas to be
'aopuri?ed or the liquid to be cooled is caused to
a compensating chamber m. This compensat-' ‘
Means for vcreating the desired ‘wave ‘consist of - ing chamber being open to vacuum through the
one or more baille plates, which arev preferably aperture 1 causes the level of the oil in this cham- _'
:curved, and which extend downwardly from the - ber m'to rise or fall with consequent adjustment
'25 upper part of the liquid-containing vessel, the of- oil level in the spray chamber to give the re-' 25
lower edge or edges of the ba?le or bames being at 'quired depth oi-air-stream under'the baille.
a small distance above the liquid level. The en- ' Mechanical means in the form of a rocker arm
which raises or lowers the ‘heme may be provided
'ytering air or other gas impinges against a baf
as shown in Fig. 4 in which theiower end of the
?e and is directed ‘downwardly into contact with
ba'ille is in the form of a ?ap.
30 the liquid so that a trough is formed on one side
of the baille and -a wave on the other. As the
' Having thus describedthe nature of‘the said ,
invention and the best means I know of carrying“
the same into practical effect, I claim:--'
1. In apparatus of the class described, a vessel
and encountersthe crest of the wave,‘ sweeping "
.35 from this crest a substantial volume of spray providing a main chamber, ; a baiiie extending 35'
’ which extracts impurities from the gas and also’ between the side walls thereof and dividing the
chamber into an air inlet sectionv and an air out
cools it.v
r ; I
'_ In the case of a liquid to be cooled air acts as “ let section, and a body of liquid in said chamber,
a cooling agent, the air being admitted at one end said baiile being curved at its lower portion to- 46 and evacuated at the other end above the liquid. .ward the inlet section, the curve of the bailie be
The lower end 01' the'ba?le is in this case prefer ing such that the lower edge of the ba?ieis spaced
above the liquid and that the air upon passing
ably in the form of a ?ap to facilitate regula
baille does not extend downwardly to the liquid
level the gas travels forward beneath the baille
tion of the ?ow.
beneath said edge strikes the curved portion sub
stantiallytangentially to the curve, thereby pro- ‘
*One form of construction or the invention as
- ‘5 applied to an air puri?er for use in connection
" _
ducing an upward current'of air in said outlet
with an internal combustionengine is illustrated section and an aspirating effect causing the air
to exert a force on the liquid at said curved baf-_;
in the annexed drawing, in which:
Fig. l is an elevation.
?e and creating a wave of the contained liquid
from the crest of which aspray will be thrown
_ ~ , Fig. 2 is a section on theline' 2-2 of Fig. ‘1,
3 is a section on the line 3-3
, ' Fig. 4_ is a view of a modi?cation.
2. Apparatus according to claim 1, in which
a scrubber gauze is provided which is of curved
form, and against which the spray impinges with
i'emoval of impurities.
55 holes _b._>and strikes against the downwardly exp. . ,3. In apparatus of the class described, _a_ ves- '
:In the; drawing,- a is' ‘an inlet chamber into
‘which.’ air'i'rom the atmosphere enters through’
sel providing a main chamber. a ba?le extend
in; between the sidewalls thereof and dividing
curved baiile and creating a wave of the con-'
tained liquid from-the crest of which a spray will
be thrown oil, and means for regulating the pas
outlet section, and a ,body of liquid in said cham ‘sage for air between the baile and the liquid.
ber, said ,baille being curved at its lower portion
4. The structure according to claim 3 in which
toward the inlet section, the curve oi__ the baiile said regulating means comprises a, compensating 5
being such that the lower edge of the baiiie is chamber provided adjacent said main chamber
spaced above the liquid and that the air upon and so arranged as to compensate for changes in
the chamber into an air inlet section and an air
' passing beneath said edge strikes the curved por
tion substantially tangentially to the curve,
thereby producing an upward current of air in
said outlet section and an aspirating e?ect caus
ing the air to exert a force on the liquid at said
air velocity.
5. The structure according to claim 3 in which
said regulating means comprises the lower curved
edge of the ba?ie formed as an adjustable ?ap,
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