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Патент USA US2134215

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Oct. 25, 1938.
2,134,215
F.) H. STROUP '
MEANS FOR CONNECTING INTERNAL COMBUSTION ENGINES TO SUCTION MOTORS
Filed April 26, 1937
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INVENTOR
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ATTORNEY.
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Patented Oct. 25, 1938
_ 2,134,215
' uni-TED: STATESiiJ pmjemql;0mm ~ , a:
2,134;215 3:1: -7 -
MEANS ‘FOR’ CONNECTING .INTERNAB‘GoMw'
BUSTION ENGINES 'TO SUCTION MOTORS ,
‘
Fred‘H. stroumwKirkwood, Mo'.",'assignor'to Wag-i=2:
ner'Electric Corporation, St. Louis, ~Mo-.; a cor-1w» '
poration
of Delaware
i
»
~
-
i -»
Application-‘April 26, 1937, Serial-No.‘ 138390; =5
6 Claims. '- (01. 60—60)',-: _~
-
My invention relates to suction-operated mech- " motor T 1-3, "the" conduit ‘ being"providedi with a
anism and more particularly to means ‘for con- "
necting said mechanism'to the intake'manifold
of an internal combustion engine. '
1 One of the objects of my invention is to pro-V
vide improved means for connecting a suction
motor to the intake'manifold of an internal com
valve“ M for‘ controlling communication between
the motor and chamber 9. ‘The suction. 'motor‘
'
and valve“ are only‘ diagrammatically shown ' and j '
may be anyone of anum'ber‘of types,‘ as for ex
‘amplefa vcontrol valve "and power cylinder'for
operatingraclutch or a brakemechanism, 'or a".
bustion engine whereby‘the operation of the suc- . reversingtvalve 'and'motor for operating a com-'
pressor'for' compressing'air'for use'as aisource of -
tion motor willnot adversely affect. the'opera
10 tion‘ of the. engine during the introduction of air
into the‘ manifold;
7
' ’ power to operate different mechanisms which are. 7
found. on ‘an "automobile "or ' other structure._ ,A
Another object of m'yinvention isto associate‘ portion :of the chamber‘v opposite.v that .to- which
conduittlZ is connected‘ is ‘in ‘communication with
take manifold“ which is ‘connected to a suction-" the ‘expansion chamber l5 by means of a passage- ‘
15 operated motor'to thereby cause a decrease in the way 16, ‘thisj'expansion' chamber being screwed‘
density of the air prior'to its’passage into the‘; into‘ “a suitable boss ‘I1 on ‘the ‘spaced member.
intake manifold ‘and'its'mixing‘with the‘car-” The: chamber". [5 may be "of ‘di?e'rent sizes, de
bureted mixture.
7
7
pending’v‘upon‘jthe‘type and size .of the suction
Still‘another object of my'invention" is to as
motor associatedlwiththe manifold,vits capacity,f_ ,
20
an expansionichamber. with the‘ portion of the in- '
41.
s'ociate with'the intake manifold of an internal ‘ however, "being in fexcesswjof that-‘of chamber‘ 9
20
combustionenginepmeans for‘ more evenly dis-_
tributing-the air introduced‘into the‘ ‘manifold’
fromthe suction motor."
‘
which. surrounds‘ ‘and’ ‘communicates with .pas- '
sagesrland?l,
Y
1
g
-
In :the'operation'of the vmechanism just de
Other objects "of my'invention will become'ap- ’ scribedfwhenpthe' suction motor" is inoperative,
25 parent from the following description takenrin ' i expansioniohamber' l5 will ‘have‘the samedegree
connection with the accompanyingJdrawing in ' ' of vacuum‘as that of the'intake' manifold duringv ,_
which Figured‘ is aside viewof aportion of the
intake" manifold: and 1 carburetor. having asso»
all conditions 'of operation of the. engine since 1 ,
this chamber, is in constant communication with . ‘
ciated, therewith an embodiment of my'invention; ;' ,passages‘l and‘ 8 by ‘means of openings 10 and.»
30 EigureZ is a cross-sectional view taken ‘on the ' II. If ‘the'suction motorv is “now operated‘i'by i
lined-42 of Figure "1, showing theinletv spacer; ‘_ proper ‘controllof valve I4, the‘ air in the ‘suction '
Figure'3' is across-sectional view'of the spacer‘ motorzwill ‘be ‘immediately drawn‘ into‘ chamber. I.
taken’ on the line 3——3 of, Figure 2; and "Figure 9 because ‘of its vacuum condition. This‘ air, in-wt
4 is a view similar to‘ that of Figure’hs'howinga, ‘ ‘stead of being drawn directly into passages 1 and I J
03 CA
40
modi?ed‘construction;
Referringv to Figures 1, 2,, and '‘3;’ thereference
1
n V
8_ throughlwhich’ the ‘carbureted mixture ?ows to '35
the cylinders ‘of the‘engine as would. be the‘ case
character I. indicatesa portionof an internal »'‘if conduit. l2v were connecteddirectly to thepas
combustion'engineandi the intake manifold sagesPis discharged into chamber 9, Since the
for said‘enginewhich has an inlet pipe 3 fortaS-f
sociation with'the :icarburetor' 4. ‘Between the expansionlichambernw is directlyconnected tov
chamber-b9, thew-degree of ‘vacuum therein de-‘ 40
creases wand-‘a portion--. of the, air which‘ enters
the carburetor" and theinlet pipe by means of 7 chamberellvfromthe suction motorrwill also enter
bolts '6. ’Thi's"spacer membervis provided‘ with the expansion; chamber. .The air under vatmos
phericrpressure coming-‘(from , the suction, motor
45 two passages "l‘ and 8 which are" aligned‘with'simi
lar passagesof the carburetor and of the inlet' ~Wi1l,l?hGI‘BfOI'BZbBCOmE rare?ed, that is, decreased» 45
pipe. 'Th‘ei‘wall ‘of the‘spacer member is also e in densityeiandireduc'edin pressure :priorI-to its ~ '
entry into passages ‘I and 8 through openings l0
provided with a chamber 9 which completely sur
inlet pipe'fand 'the "carburetor is interposed va
spacer member 5‘ suitably'securedjto ?anges. on
rounds passages ‘! and 8 and this chamber com
50 municates with passage 1 by means of spaced
restricted openings Ill and with passage 8 by
means of spaced restricted openings l l. One side
of this chamber, at a point substantially oppo
site the partition between passages ‘! and 8, is con
55 nected by means of a conduit 12 to the suction
and II. This rare?ed air will enter passages ‘I
and 8 at different points about their walls due'
to the spacing of openings l0 and II and thus 50
will mix with the carbureted mixture ?owing to
the cylinders of the internal combustion engine.
The operation of the engine will thus not be
seriously affected by any excess unmixed air 55
'
2,134,215
- 2
being introduced into one or more of the engine
2. In apparatus of the class described, the
When the suction motor is employed to actu
ate the compressing piston of an air compressor,
the motor will be subject to intermittent opera
combination of an intake manifold passage of
an internal combustion engine, means forming
a chamber surrounding said passage, said cham
ber communicating with said passage by means
tion, and the expansion chamber l5, besides caus
ing a rare?cation of the air coming from the suc
tion motor, will also “smooth out” or “dampen”
a suction motor, a conduit for placing the motor
in communication with the chamber, and an ex
cylinders.
the pulsations caused by the intermittent ?ow of
10 air from the suction motor to the manifold. In
other words, if the expansion chamber were not
present and conduit l2 directly connected to in
let pipe 3 of the manifold, the intermittent
charges of air resulting from the operation of the
15 suction motor during the compressor operation
will cause the carbureted mixture to vary in-den
sity each time air is introduced into the inlet pipe
and, as a result, there would be uneven operation
of restricted openings through the wall thereof,
pansion chamber in constant communication
with the chamber surrounding the manifold pas 1O
sage, said expansion chamber having a volumetric
capacity exceeding that of the ?rst mentioned
chamber.
3. In apparatus of the class described, the
combination of an intake manifold passage of 15
an internal combustion engine, means forming
a chamber surrounding said passage, said cham
ber communicating with said passage by means
of a retsricted opening through the wall thereof,
an expansion chamber in constant communica 20
20 “rolling” would be in timed relation with the‘op
eration of the suction motor. ' By the use of the _ tion with one side of said chamber surrounding
expansion chamber l5, chamber 9, and spaced the manifold passage and having a Volumetric
openings communicating with passages ‘l and 8, capacity exceeding that of said chamber sur
rounding the passage, a suction motor, and a
the intermittent flow of air from the suction mo
conduit for placing said motor in communication 25
25 tor during its operation is caused to have a fair
ly even ?ow into the inlet pipe as expansion with the chamber surrounding the passage and
chamber l5 and chamber 9 decrease the density on the side opposite‘that with which the expan
sion chamber communicates.
of the air, and passages l0 and II‘ tend to intro
4. In apparatus of the class described, the
duce this rare?ed air into passages ‘I and 8 at
of the engine ordinarily termed “rolling”. This
30
a uniform rate.
'
It is not necessary for expansion chamber l5
to be placed upon the side of the spacer opposite
that to which conduit I2 is connected. In Fig
ure 4 I have shown the expansion chamber [5' as
35 being interposed between conduit l2’ and cham
ber vcommunicating with said passage by means
of a restricted opening through the wall thereof,
an expansion chamber in constant communica 35
ber 9 of the spacer member. When thesuction
motor is inoperative, this expansion chamber has
tion with» said, chamber surrounding the mani
fold passage and having a volumetric capacity
the same degree of vacuum as the inlet pipe of
the manifold. Whenthe suction motor is op
passage, a suction motor, and a conduit connect
40. erated, the air therefrom'is ?rst introduced into
expansion chamber l5’ and chamber 9 where its
density is decreased prior to being evenly dis
tributed into passages ‘I and 8 through openings
I0 and II. Thus chamber IS’, in this position,
45 acts in the same manner as does chamber l5
of the structure shown in Figure 1, and the op
eration of the engine is not affected while the
suction motor is being operated.
Being aware of the possibility of modi?cations
50 in the particular structure herein described with
out departing from the fundamental principles of
my invention, I do not intend that its scope be
limited except as set forth by the appended
claims.
55
combination of an intake manifold passage of 30
an internal combustion engine, means forming
a chamber surrounding said passage, said cham
‘
Having fully described my invention, what I
claim as new and desire to secure by Letters Pat
ent of the United States is:
1. In apparatus of the class described, the
combination of an intake manifold passage of an
60 internal combustion engine, means forming a
exceeding that of said chamber surrounding the
ing the motor with the expansion chamber.
40
5.}In apparatus of the class described, the
combination of an intake manifold of an internal
combustion engine, a carburetor, a member in
terposed betweenthe carburetor and the intake
manifold and having an opening in alignment 45
with the outlet of the carburetor and the inlet
of the manifold, means forming a chamber in
the wall of said member and surrounding the
opening, said wall being‘ provided with spaced re
stricted connecting passages for placing the 50
opening in communication with the chamber,
an expansion chamber having a volume consid
erably greater than the chamber in the wall of
the member and communicating with said wall
chamber, a suction-operated motor, and means 55
for placingsaid motor in .communication with
the wall chamber.
6. In apparatus of the class described, the com
bination of a fuel intake passage of an internal
combustion engine, a suction-operated motor,
conduit means including a restricted opening in
the Wall of the intake passage for connecting
chamber surounding said passage, said chamber
communicating with said passage by means of
restricted openings through the wall thereof, a the suction >motor with the passage, and means
suction motor, a conduit for placing the motor
65 in communication with the chamber, and an ex
pansion chamber in constant communication with
the chamber surrounding the‘ manifold-passage.
forming an expansion chamber in constant com
munication with said intake passage through said
restricted opening.
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FRED H. STROUP.
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