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Патент USA US2406282

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Aug. '20, 1946..
R. DE vr--lLlPPls
2,406,282
AUTOMATIC MIXTURE REGULATING DEVICE FOR INTERNAL-COMBUSTION ENGINES
Filed Aug. 1, 1942
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Patented Aug. 20, 1946
AUTOMATIC MIXTURE REGULATING» DE
;_vIoE ,FOR INTERNAnfooMBi-‘ISEHQN ...EN
GINES
Reymond s_ie‘FiliPl'iisA Nen-Yorke?? Y#
ÀpplicativoniAugust 1, 1942, S§rial,No_. 4.5;?„2915fVv
4 o_iaiins. (o1. k12,3'V-iiafi)
1
@his invention, reiste?. to improvements in ' ‘ in a, deyiceiof the ohai'acter described, means
tn t w‘iu ' remain "inoperative and ineffective at
omefoie mixture regulating deviees .fojr'ii1-`
„e
el combustion eueines,
'
"
needs; “for exampldatspeeds of‘less 'than
‘
IÓ miles'per hoì'ir'; 'and‘willfat' higher speeds
`;ríi"`ògre`s'six/'elyA increasing quantities of Vair
tnròiigiiîtne ‘intake ‘inanifpm‘ to" the combustible
.Qne ofthe obieets-.oi my invention, is ie PFO
vide .siiimlel and ei-îfieieni meensfer euiomeii
ria-1.1i'I_eoutreliure- en@ progressively very'iue the'
mixture being fed t9 the Cylinders. 0f ,en iii
mixture; p sing" Vthrough "saidV manifold; and
ternel combustion engine .iii eeeordeuee with
" A
`
"'aVè'gÍas Aat'si'ich' highen’speeds..
'
`
~okìJ'lélc'itÍolffmy invention is to provide
eans 'that will causeV agitation
andin the _ratio of the» speed of theV engine. '
Another obieet ofi. myiiiveniion is, in e de-V io,
vice of the ohereeier fieso-„riloedy to utilize es riiie
intake Aöor'iduitf'"aridïw‘ill thus cause. sucli‘ia'gi'
operating and controlling element a slide valve
tattici` air> to'wbe‘ -more vreaïdîlïf miXable 'With'the
movable-in en air-admission >eoruiuii und pref*
combustible mixtiire'passing through' the mani
erably Iaetnated by Va rotatable propeller or'fan,
andto utilize as`v .the actuatingmediuinthe air 15y
kStill another object of my invention is _to‘uti
sireamat the ,veryiue velocities .thereof "iu .re
lize", Vinia"'d'eviceî‘of the cnaract'er'specifiedf a
lation y_to the çaratï'varying speeds of said ear
`slide Valve Íaiif'ifconduitV by'ïwhicli ai plurality' of
to actuate said propeller orüfam
î
Anotherobieet-of my _iuveu‘eiQri is, in u @Brice
` ,Y
neetionwitha valve .und air-emissie? @Hiwit
ofthe-charoeier deseribed, eneriures for „Pro
gressively increasing; the _supply of air inv ae-v
cordancewitn the in_ereesiiigiueyemerii. of .the
e>-
$ti1lanother object ofmy eiiiîoii ieri.“ en
air ~.i.’eeu1eitirig> and. .Controlling .valve of lthe ¿type
-n
"
"
I'are“.admitted'simultaneously*and
`
Wítli‘thesea?d other objects in View, the in_
vention rcomprises„the combination of members
25.
and Í arrangement 'of ‘parts s`o"com_bined` as toi' oo
alctlarlldico-‘opérate Withkeaçh other in the Iper’
fornílance' _ofthe „functions :and 'the accomplish
merit , of » 'the resillts herein` contemplated, fand'
comprisesÍin one' `of its adaptations the >species
or preferred' form illustrated inthe accompany?
uponiongiiudinei movement ein the 'CQii‘e/ïuii‘io
progressively `»open .e plurality of longitudinally
iiie?çirayying,
Fig. .1“„isafviewin
,in 'whien-A
sideelevation
~ ‘~ '~ of anf yengine
i
„
' ...the
`
rderiee .wiiii-
e090.
showing; my antor'natic miktiire-l'regulating >'cie-r
morement of the .slide valve
,come
withfmeans ior moving seid s1ideye1ve .irl 1o
nortionete `ratio to .the speed of .the-,Yehîelee
Still. another Aoloieot of lmy iiiVeiifiìQii is, sinie
vice Y
_tinted _inïpvosition on the' intake mani
faim i
" Eig. V2 >is anwenlarged View showinginfsection
wan with ‘my
slielei valvefof the ehereeierf deseribed, (to nro-.1
viele «, ,air-mieke «apertures Ain . the ,eir'àeemissieri
air regulatordmounted
` v1.3 is :a section on'therein.
'the line p3-`-3` of" Fifg,
' `> 2
conduit and to progäçssively increase the sizer
orvareazof ‘suohfaneriuresfriëmï the bo'ßfu‘imi i0»
thump-:of zine/path of moyement oiseiii >veils-ive
Siiu ,another _object _of
iriveniierivis ¿te
as: the progressive r'verite-Irroviue arid aperture.
te.
die ' eine’ is l dirne 'speen orV thdvehicie.'
speçiñed, to: in_tilizef an _air-admission _conduit
and „to >«provide therein a slidable-yaivç adapted
erranged .apertures irl
»
LV" ui'nefof'stréams are progressively
sed nacoordanceiwith the m'ovement'ïjof
o_f- the character sizeoiñed; fo PrOYìdeìn-'CQII
propeller'lolade and 0f the Ye
v
_ looking/inthelfdî?ectionof 'the arrows.y `
s a. d
w of
utom >tic mi
'ture regu
vice 'in Asignie:leviesn' a'nîçi‘ enmiged `evier
opening means and gravity, plus :normal suetieriy .45
through; the ,conduit as fthefteive-olosirie .means-‘
Another object .of .my-invention is .to Pesi
ii'on; my >slide :valve .and iis-Y air-,esimittiiis eeu-V
duit, '_on the intake .manifold inf the air sireempof
, i j
îsïemi‘iferemmrimesse 11i-.aies
Qpgizg _ empties-inner@ the 'oute‘re'nd rife?eóf4
tnefeonventional radiator Aferr. end’thus ’90pm-A £50` together
th va-slide yalye'andlaötuati?g means
curevautomaiic increase .0r degrees@ .of the lair
supplyfinV accordance „with the-_speed ‘of tlieo‘en
adiustment vofthe miziturefin .the eerleureier
Anotheriobieot orimy invention» isto prow/ide,
5.5‘b5r van' air-stream and rprèferaloiy''loi7
2,406,282
à Y
4
I2 highly sensitive to the yblast of yair from the
motor fan by reducing frictional resistance to
sliding motion'of the valve VI'I and rod I9. Since
i ing an air-admissionV aperture or apertures to‘
¿. the intake manifold and preferably moving a slide '
valve within an air-admission conduit of the type '
hereinabove speciñed.
these parts are caused to rotate, there is a com
bination of torsional and longitudinal forces
Y
Referring now to the drawing Ywhich illus
which tend to _quickly dislodgeor, loosen any dust
particles which may entrer the bearing 20 ,or which
trates apreferred embodiment of my. in_vention,` '
l Ißrindicates the engine _as a whole which may bel
‘ of' any conventional type and as shown, is pro-Y
vided with an intake manifold II having a headl
.
YRotation ofthe propeller I8 renders the device
stream of the radiator fan for progressively open..
maybe ñne enough to seep ythroug`l:1"'the ñlter ' '
n hereinafter described. Since the partsV I1, I8 and
I Ia, on the side Wall of which is mounted my air- ` ‘
I9 are intermittently in rapid rotation while the
Í`automobi1e isY being driven, Vthe dust particles do
not have an opportunity to settle and pack.
Thus sensitivity-to» the blast of the fan is main
mount in this tapped bore an,-o1_1.tward_ly-pro-` 15 tained in Ya high degree. Important as this is;
jvecting screw-threaded nipple I4, atmthe _outer the propellerV ¿I8 has a further advantage in that
regulating device I2, as moreîparti’cularly illus
trated in Figs. 1 and 2. The side-wall IIb'of
the head IIa is bored and tapped at I3, and I
end of which- I mount my said air-regulating de-- f." `its ‘blades’ ófferîça' response to the air blast from
> the motor fan which is relatively uniformly pro
vice I2. VMy said air-regulating device, as shown,
portioned to the force of that blast and hence
I4 and a straight tubular-conduitlß threaded at 20 to the speed of the motor. Such uniformity is
embodies an L-conduit I-5 mounted on the Vnipple
one' end> into said L I5.` The conduit vI6 prefer
due to the fact that the propeller blades do not
offer'an obstacle of excessivearea at the region
ably has mounted therein'a slide valve I'I adapt
of the propeller; the angle of the blades affords
ed upon movement longitudinally or >axially
a partial stream line> effect;` and finally, exces
throughv the tubular conduit",` Iiìïto vadmit air
through the‘L I|5 and- nipple I4 to themanifold 25 sive- eddy currents are avoided which cause ~a
blast of air to transmit an uncertain and erratic
I`I. The'valve memberv I'I' is movable by the'ro
forceto the opposing surface.
~
~
tatable propeller I8 which as shown is mounted,V on
In the embodiment of my invention illustrated,
a rod I‘B 'connected with the sliding valve-member
suitable protecting Vmeans is provided to protect
I'I.ï The rod IIB is guided at its o_uter end in the
bore 20’ of cap 20 and'in the "preferred embodi-` 30 and prevent clogging of dirt in the air-intake
ment`of my invention thev valve member I‘I fits
loosely within the bore 2| of the tubular mem
ber IB and' has' at one end a"«bevel1ed'edge 22
adapted to seat upon the valve seat 23 andto
close a main- Valve opening 23’. The body lof 35
the- airfc'onduit'or casingflû'is'provided with a
plurality of series ofapertures 24 and 24’.
"Mylslide valve casing is -preferably positioned
in inclined position on'thermanifold so thatfit
will normally close by gravity. _*The threaded
apertures“ and 24’, and'insaid preferred em
bodiment of my invention, I provide a protective.
casing 25 which, as shown, is mounted on spiders
26 and 26’ and is provided at opposite ends with
the screens 2l and 2l',~s'aid casing 25 being, of
course, open at its opposite ends -to permit air to
pass through said screens 27'and 21', and into
the intake openings 24 and 24’.
` -
`
»
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The operation of the Yinvention will vnow be
40 briefly described. When the automobile is run
ning'at a low speed, which may be up to ten miles
connections ~at I4, I5 permit some> angular move
per hour, the valve portion 22 engages the seat
ment so that'the angle of the casing can be ad
justes.
’
'
y
'
`
'
'
23y to close the latter so that the combustible f
mixturefor the motor is as determined by- the
withinthe bore ofthe conduit casing I6 so as to 45 carburetor. This closing action is caused' by grav-ity and suction overcoming the pull of the pro
admita l.slight Vamountpffair upon unseating
peller I8. As the speed increases the valve I'I
from the ,ivalve 'seat ‘23 Íthrough theírnain' valve
mayV move to the position shown in Fig. 2, in
opening >23’. 1 So soon, however, as the valve mem
which' the valve seat 23 is open, and some air
loer.'A I'I' is moved 'outwardly airis admitted through
the inner members of the series of apertures v24 >50 leaks throughv the clearance between the side
walls of the valve and of the tube I6. This- is
and 24', and as said valve member I1 is` moved"
desirable because the carburetor is generally ad
further outwardly additional air will 'be Vadmitted
justed for a rich mixture, that is, one in which
through additional apertures of 'said'series until
there is a considerable'` excess of fuel. As lthe
the'entire 'plural series of apertures ‘24 vand :24'
will be admitting air to the air-fintake conduit" 55 speed further increases and becomes substantial,
or’casing'and through that conduit or casing toV the proportioning of fuel to air bythe carbu
retor changes so that the mixture becomes rich-ï
the manifold.
In. preferred form of 'my invention illustrated,` erg-'because the coeflicients'of iiow vary „with the
velocity of the gases in the carburetor, and for
the plural series of apertures 24,> 2.4' are arranged
in pairs and- these pairs'- arev progressively in 60 other reasons. The suction, however, diminishes
as is ,well known in-the art.- Hence the valve> I1
creased in sizeor 'area in accordance with theirY
is movedA by the propeller> I 8 to open the'inlets
position in relation tothe outer end -of >the air
24, 24"`progressively, as >the motor speed in;
intake casing or lconduit. When the> speed of the
"The -vali'ley member I ‘I ,preferably ñts loosely
vehicleis increased, it is obvious _that aY stronger ~ „ creased. _ Thus additional air is supplied tothe
current of air will be projected against the pro
peller "|18, to move the valve member I1 outwardly
in opposition to suction from the manifold which
motor in approximate proportion to the increas
ing richness of the mixture as it leaves the car
will, through the air conduit I6, retain said> suc--v
from the motor are‘at a relative minimum. This Á
l additional air is supplied to the combustible mix
tion in relatively confined condition and will thus
buretor, whereby the unburnt gases'r discharged
enableY a constant?pull to be maintained :on the 70 ture ina Vturbulent condition" so as to instantly
become a relatively homogeneous component of
valve I'I. SuchV constant pull of the suction willv
be jovercome by the propeller pull which is pro-v
gressively increased and strengthened in accord;~
ance with and in proportion tothe speed of thej
vehicle.
the combustible mixture.. _v This 'is due-to the fact'
that the air enters'the tube I6 >through 'opposed
openings 24,' _24l so Vthat the streams of air A.irn
pingeïon each other and cause eddying’which'in
2,406,282
5
,
a round pipe, and in an elbow such as I5, quickly
resolves itself into a pulsating and whirling ñow.
The whirling or spinning of the air is aided in
some degree by the rapidly rotating valve I‘I,
which indicates a further advantage in the use
of the propeller I8. Thus the air becomes quick- `
ly warmed up and is uniformly admixed to the
combustible mixture. While all this transpires
there is the constant interaction between the suc
tion and the pull of the propeller, as adjustably 10
modified by gravity, so that it is seen that the
motor and its fan cooperate with the valve struc
ture and the rotating propeller to avoid waste of
fuel and to maintain a highly sensitive interrela
tion of the parts without requiring any direct ac
tuator connection to the carburetor or the fan.
It is noteworthy that the force of gravity is a
constant quantity, and because the valve unit is
inclined, that effect is small. But it is impor
tant for moving the valve to close the ports pro 20
gressively and bring the valve into immediate
and strong responsive relation to the suction when
"
6
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the casing slidable `along the axis of the casing
and rotatable about said axis, a propeller ro
tatably slidably mounted on the casing and beingv
axially connected to the valve so that the, lat
ter is caused to rotate and the valve and pro
peller are slidable as a unit, said casing having f
openings communicating with the manifold and
with the atmosphere for admitting a quantity
of air to the engine sufficient to reduce the rich
ness ofthe combustible mixture as the engine
increases in speed, said valve bein-g gravitation
ally urged to a position in which it closes the
openings, and said propeller being opposed to the
said fan to be rotated thereby and to produce an
axial force causing opening movement of the
valve, and said valve being so related to the cas
ing that the engine suction tends „to close the
valve, whereby rotation of the valve andV pro
peller unit renders the same easily slidable in
response to the opposing forces of said suction
and of the fan blast.
,
v
3. A device responsive to >the‘suctionat the
intake manifold of an internal combustion engine
the motor is slowed down. . »
and to the blast of air from the coolingfan of
Having described my invention, I claim:
1. A device constructed for connection to the 25 the engine to change the proportions of the com
intake manifold of an internal combustion en
bustible mixture upon an increase in the speed of
gine in confronting relation to the cooling Afan
the engine, including an intake manifold for the
engine, a casing, a member connecting an end
thereof, which device comprises a casing, a pis
of the casing With the manifold, an elongated
ton valve slidable and rotatable therein, the cas
ing having means for connection thereof lto the 30 Valve in the casing slidable along the axis of the
casing and rotatable about said axis, a propeller
intake manifold and having openings communi
rotatably slidably mounted and being axially con
cating with the intake manifold and With the
atmosphere, said openings being controlled by
nected to the valve so that the latter is caused
to rotate and the valve and propeller are vslidable
the slidable valve and being 0f such size as to
be adapted to admit a regulated supply of air 35 as a unit, said casing having openings communi
cating with the manifold and with the atmos
into the manifold to rectify the proportions of
phere for admitting a quantity ofair to the en
fuel and air as the engine speed increases, and
gine sufficient to reduce the richness of thecom
a. propeller-like element exposed to the atmos
bustible mixture as the engine increases in speed,
phere and adapted to be responsive to the lblast
of air from the engine fan to cause rotation of 40 and said propeller being opposed to the said fan
to be rotated thereby and to produce an axial
the propeller and to produce a force axial thereof
force causing opening movement of the valve,
tending to open the valve, the latter being axially
and said valve bein-g so related to the casing
directly ñxedly connected to the propeller so as
that the engine suction tends to close the valve,
to be caused to spin while the valve and propeller
move axially as a unit in opening and closing 45 whereby rotation of the valve and propeller unit
the valve, and said means being adapted to mount . renders the same easily slidable in response to
the opposing forces of said suction and of the fan _
the casing at an acute angle to the horizontal to
cause the valve and propeller unit to gravita
blast.
4. A device responsive to the suction in the
tionally slide to a position in which the valve
closes said openings, said valve being so related to 50 intake manifold of an internal combustion en
gine and to the air stream caused bythe cooling
the casing and said openings as to be responsive
fan of the engine to control the .supply of auxil
to the manifold suction tending to close the valve,
iary air to the manifold> including a casing hav
in opposition to the axial force of the propeller.
ing means for connecting the same to the intake
2. A device responsive to the suction at the in
take manifold of an internal combustion engine 55 manifold, said casing having atmosphere air in
lets, a rotatable piston valve in the casing con
and to the blast of air from the cooling fan of ‘
trolling said inlets, and a propeller axially con
the engine to change the proportions of the com
nected to said valve, said propeller being exter
bustible mixture upon an increase in the speed
nal of the casing and being adapted to be actu
of the engine, including an intake manifold for
the engine, a casing, an angular member con 60 ated by the air stream so that the valve and
propeller are rotatable Vand axially movable as
necting an end of the casing with the manifold,
a unit by the air stream.
so that the axis of the casing extends at an acute
RAYMOND DE FILIPPIS.
angle to a horizontal plane, an elongated Valve in'
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