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Патент USA US2090673

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Aug. 24, 1937.
2,090,673
J. E. GOMBOS
I AUXILIARY FUEL ATOMIZER FOR INTERNAL COMBUSTION ENGINES
Filed Sept. '19, 1934 '
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2,090,673
Patented. Aug. 24, 1937
UNITED, STATES . PATENT oer-‘ice
2,090,673
AUXILIARY FUEL-ATOMIZER FOR IN
TERNAL COMBUSTION ENGINES
John E. Gombos, Elizabeth, N. J., assignor of
one-half to Egbert Stockert, Vienna, Austria
Application September 19, i934, Serial No. 744,720
In HungarySeptember 19, 1933
10 Claims. (Cl. 123-122)
This invention relates to improvements in
atomizing devices for use in conjunction with
internal combustion engines, and has for its ob
ject to permit of the attainment of practically
5 perfect combustion of a very wide range of fuels
including those of» high boiling point, with the
usual types of carburettor, and at all speeds of
the engine, without the necessity for alterations
in or special adjustment of the carburettor. For
10 this purpose, the present invention provides a
novel type of unit for interposition between the
engine and the carburettor comprising an intake
manifold of special construction and in com
bination therewith, and with the exhaust system
15 of the engine, a fuel atomizing and mixture pre
heating device of particular construction to be
detailed in due course.
-
Fig. 2 is a transverse section of the combined
manifold.
.
Referring to Fig} 1, the device consists'of the
induction pipe 8 having adjoining it in .a mid
way position the ?anged tube I. Within the
tube I there is arranged the atomizing cham
ber 2 which on its inner surface may be provided
with the electric heating element 311, 3b. This
heating element 3a, 3b is connected ‘by means
of the conductors 31, 32 to the source of current 10
3. Apart from the electric heating element 30,,
3b, and separated therefrom by a partition, there
is also providedv in the atomizing chamber 2 a
system of propeller blades 5 adapted to rotate
about a shaft 4, The device according to the
‘invention further comprises an annular cham
ber or jacket Hlb which ‘surrounds at least part
As is well. known, the majority of auxiliary ,of the atomizing chamber, and which communi- '
cates with the exhaust pipe 9 by-means of the
atomizers for heavy fuels for use with internal
20
combustion engines only begin to supply a com
bustible mixture after the attainment of a cer
pipes l0 and Illa, and on the other hand with
the outside atmosphere by means of the dis--_
charge pipe lllc. This system of pipes l0, Illa,
and H10 thus constitutes, ‘together with the an
tain speed of the engine, so that in starting and
during slow running of the engine the less volatile
nular chamber or jacket lob, a by-pass from the‘
particles of the fuel pass into the cylinders in a
exhaust pipe of vthe engine for the heating of 25
non-atomized
state,
with
the.
result
that
the
com
25
bustion is imperfect, smoke and soot formation , the atomizing chamber by means of the hot ex
is set up, and the engine loses efficiency and
In the induction ‘pipe 8 there may be further
runs uneconomically. It has also been proposed
‘to heat the induction pipe of internal combustion arranged a plateta which is provided with per-.
engines with a view to assisting the vaporization vforations 6b, and of which the portion'extending
and combustion of heavy fuels. The devices into the tube 1 forms with the latter the an
haust
gases.
,
‘
‘
_
'
hitherto proposed for this purpose, however, suffer . nular' space 1, ‘la. On the outside of the exhaust
- from the drawback that they are apt to produce
an overheated fuel-air mixture which, on enter
manifold 9 there may be provided the cooling and
heat-distributing ribs Ila, llb, He, He (Fig.'2).
35 ing the relatively cooler engine, becomes to some Finally, between the exhaust manifold 9 and the
induction pipe 8 there may b'eprovided an air
extent condensed and thus likewise leads to im
cooling space l2 communicating with the outside
perfect combustion and uneconomical running.
v
The device according to the present invention' atmosphere (see Figs. 1 and 2).
The ‘suction of the engine draws the vfuel
obviates thev above-mentioned drawbacks and
air mixture from the carburettor in the direction 40
40 consists essentially in an atomizing chamber
of the arrow la into the atomizing chamber which v
interposed between the carburettor and the in
duction pipe of the engine and provided with is suitably heated by the‘ electric heating element
heating means for the maintenance of a suitable 3a, 3b connected into circuit with the‘sourcev
temperature during starting and slow running of of current 3 on the starting of- the engine.‘ The I
45 the engine. The inventionfurther provides for fuel particlesin the mixture are further broken
the automatic discontinuance of the said heating up by the action of the rotating propeller sys-_
at the required moment and for the subsequent tem which is rotated by the suction of the engine,
heating of the atomizing chamber by means and at the same time ?ung thereby against the,
of the combustion gases from the exhaust of the partition covering the heating e1ement‘3a, 3b.
50 engine.
'
‘
' Alform of construction embodying the inven
The fuel thus becomes extremely ?nely atomized
and thoroughly commixed with the air, and they
tion is shown by way of example in the accom~
mixture thus produced passes on into the induc
panying drawing, in which:
tion pipe 8.
Fig. 1 shows the entire device in horizontal
55 longitudinal section.
-
7
I
‘
~
'
-
_
,
As soon as the engine 'has attained a. certain
speed the heating element/is cut off from the 55
2
2,090,678
izing means in the said casing, a jacket surround
source of current 3, whereupon the heating jacket
' lllb is brought into action.
ing the said chamber at least in part, a by-pass
The hot waste gases
pipe from the said exhaust manifold and com
pass from the exhaust manifold through the by
pass pipes I0 and Illa intothe annular chamber
1 0b where they give up their heat to the atomiz
municating with the said jacket, a discharge pipe.
connected to the said jacket and communicating
ing chamber 2, to promote the atomizationof the '_ with the outside atmosphere, 2. ba?le plate dis
fuel after the auxiliary. electric heater has been .posed substantially parallel to the side of the said
induction pipe nearest the said chamber and
cut off. The by-pass pipes ID are disposed par
extending into the annular space between the
said chamber and tubular casing as far as the 10
' allel with and in close proximity to the portions
10 of the induction pipe 8 furthest removed from
_ the heated atomizing chamber 2, so that any non
said jacket, and perforations in the said baille
’ vaporized fuel happening to be carried along by
the mixture into the induction ‘pipe 8 becomes
pipe being enlarged in diameter for‘ at least a
.
plate, the said by-pass pipe and the said discharge
portion of their length 'and disposed alongside
effectually vaporized‘ in the latter in consequence
and in close proximity to the said intake manifold. 15
3. The combination with the intake and ‘ex
pipes l0 traversed by the hot exhaust gases. '
15 of the heat transmitted thereto from the by-pass
The particles of fuel passing unvaporized into I haust manifold of an internal combustion engine;
of an auxiliary fuel atomizer comprising a tubu
lar casing adapted to be connected to said in
take manifold, means forming an atomizing. 20
the induction pipe and condensing therein when '
the engine is cold or running slow pass through
20 the perforations 6b in the plate Ba-into the an
nular chamber ‘I, ‘la where they are vaporized
chamber within said casing and spaced from the
by the heat from the chamber lilb and returned in , walls thereof whereby an annular space com-I
a gaseous state into the induction pipes as a fuel municating direct with said intake manifold is
formed, means for preliminary heating the fuel
reserve. The by-passed exhaust gases, after hav
25 ing ful?lled their purpose in assisting the atomi
zation of the fuel, escape into the open by way of
charge vin said chamber, comprising a jacket 25
partly occupying said annular space and a by
pass pipe connecting'said jacket with said ex
haust manifold, and secondary heating means
the discharge pipe lilo.
‘
The actual construction of the auxiliary atom
'
izing device according-to the present invention ‘ comprising ba?le ‘plates for receiving the non 30
vaporized portion of the fuel charge within said
intake manifold and extending into said annular
' "from the spirit and scope of the invention, the
space to said heating jacket, whereby complete ;
. construction here described and illustrated being
intended merely to serve as an example. So, vaporization is obtained.
4. The combination with the intake and ex-' 35
for instance, when highly volatile fuels are‘lused
0 can be modi?ed to any extent without departing
haust manifolds of an internal combustion, en
gine and a. source of electric current ;. of an
, 35 such as gasoline, or benzine, the electrical heat
ing means may be dispensed with and also the
baffle plates, the main purpose of the invention
being to maintain the fuel charge at the constant
auxiliary fuel atomizer comprising a tubular cas
ing adapted to be connected to said intake mani
fold, means forming an atomizing chamber with
in said casing, means for preliminary heating the
charge in said chamber, comprising laterally dis
temperature until it enters into the engine cylin
40 ders. This purpose is accomplishedas indicated
in the speci?cation by circulating the exhaust
posed electric heating elements in said chamber '
' gases around the atomizing chamber and by ar
adapted to be connected to said source of electric
ranging the by-pass pipe as. well as the discharge
pipe' alongside and parallel to the intake manifold current whereby said fuel charge is partly vapor- ized, and secondary heating means at least partly
5 so that there is a heat exchange relationship be
within said intake manifold, whereby complete
tween the two.
.
.
.
.
The new device according to the ‘invention vaporization is obtained.
can be constructed. either as a small unit for I
interposition between the carburettor .and the in
50 duction pipe of the engine, or, more particularly
5. The combination with the intake and ex?
haust manifolds of an internal combustion en
'gine and a source of electric current; of an ‘aux
50
iliary fuel atomizer comprising a tubular casing
for use with engines having the induction pipe
adapted to be connected to said intake manifold, —
_ and the~exhaust manifold on the same side of
means forming an atomizing chamber within said ,
the engine, as a larger unit comprising exhaust * casing and spaced from the walls thereof where
by an annular space communicating direct with‘
proper.
.
said intake manifold is formed, means for pre
liminary heating the fuel charge in said cham
I claim:
5'5 manifold, intake manifold, and atomizing device
‘
1. ‘In an internal combustion engine an intake '
manifold,,'an exhaust manifold at least partly
ber, comprising laterally disposed heating ele
ments in'sald chamber adapted to be connected
._ 60 surroundingthe said intake manifold, a tubular to said source of electric current, a jacket partly 60
casing adjoining the said intake manifold, atom- . occupying said annular space and a by-pass pipe
connecting said jacket with said exhaust mani
ing the said chamber at least in part, a by-pass fold, and secondary heating means comprising
ba?le plates for receiving the non-vaporized por
pipe from the said exhaust manifold and com
65 municating'with the said jacket, and a discharge " tion of the fuel charge within said intake mani
fold and extending into said annular space to
pipe connected 'to_ the said jacket and communi
izing means in the said casing, a jacket surround
‘ eating with- the outside atmosphere, the said by- _
said heating jacket, whereby complete vaporiza
pass pipe- and discharge pipe being ‘enlarged
in diameter-for at least a portion of their length
70 and disposed alongside and in close‘proximity to
tion is obtained.
_
'
-,
'
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-
6. A? fuel vaporizer for internal combustion
engines of the type having an intake manifold,
an exhaust manifold and a carburator compris
2. In an internal combustion engine an intake -'ing a_ casing positioned intermediate the intake
manifold, an exhaust manifold ‘at least partly manifold and the carburetor, an atomizing cham
surrounding the said intake manifold, a tubular ber in said casing communicating with the car
the said intake' manifold.
-
v
75_ casing adjoining-the said intake manifold, atom
‘
burator and the intake manifold,v a heating jacket
3
2,090,673 '
at least partly surrounding said atomizing cham
ber, means for circulating the exhaust gases in
said heating jacket, said means being disposed
alongside of at least" a portion of the intake\
manifold and in near proximity thereof whereby
uniform temperature of the vaporizing fuel
charge is obtained'and condensation prevented
in said intake manifold.
7. The combination with the intake manifold
10 and the exhaust manifold of an internal com
bustion engine; of a fuel vaporizer comprising a
casing adapted to be connected-to said intake
manifold and to the carburator oi the engine, an
atomizing chamber within said casing, commu
nicating with the carburetor and the intake man
ifold, a heating jacket at least partly surround
ing said atomizing chamber, means for circu
lating the exhaust gases in said heating jacket,
said means comprising a by-pass pipe from said
20 exhaust manifold and a discharge pipe commu-_
nicating with the outside atmosphere, said by
pass pipe and said discharge pipe being disposed
alongside of said intake manifold and in near
9. The combination with an intake manifold,
an exhaust manifold and a carburator of an
internal combustion engine; of a fuel vaporizer
comprising a casing connected intermediate said
intake manifold and said carburator, an atom
izing. chamber in said casing communicating with
the carburator and the intake manifold, a heat
ing jacket at least partly surrounding said atom
izing chamber, means for circulating the exhaust
gases in said heating jacket, said means com 10
prising a by-pass pipe from said exhaust mani
fold and a discharge pipe communicating with
the outside atmosphere, said by-pass pipe and
said discharge pipe being disposed alongside and
in close proximity to said intake manifold at
least for a portion of its length, ba?le plates posi
tioned in heat exchange relationship with said
heating jacket and extending within said intake
manifold substantially parallel to the walls
thereof.
-
-
.
20
10. In an internal combustion engine, means
forming an atomizing chamber, a heating ele
ment situated within said chamber for the pre
proximity thereof, whereby uniform temperature liminary heating of the air-gas mixture, an ex
of the vaporizing fuel charge is obtained and haust pipe and a jacket situated adjacent said 25
condensation prevented in said intake manifold, atomizing chamber in heat-conducting relation
8. The combination with an intake manifold,
an exhaust manifold and a carburator of an
internal combustion engine; of a fuel vaporizer
comprising a casing connected intermediate said
‘intake manifold and said carburatonan atom
izing chamber within said casing communicating
with the carburator and the, intake manifold, a
heating jacket at least partly surrounding said
atomizing chamber, means for circulating the
exhaust gases in said heating jacket, said means
being disposed in heat exchange relationship with
said intake manifold and bailie plates positioned
in heat exchange relationship with said heating
in jacketLsaid ba?ie plates extending within said
intake manifold substantially parallel to the walls
thereof.
-
ship thereto, said jacket being adapted to be ,
connected with said exhaust pipe to transmit ex
haust gases passing therethrough, the heat of
the exhaust gases being’ transmitted to said 30
atomizing chamber to heat the air-gas mixture
after the interruption of said preliminary heat- ‘
ing, another chamber adjacent said jacket and
in heat-conducting relationship thereto, and
means connected with the last-mentioned cham
35
ber for collecting unva'porized fuel particles and
for transmitting them to the last-mentioned
chamber, said fuel particles being vaporized by
the heat transmitted to the last-mentioned cham
40
, her from said jacket.
JOHN E. GOMBOS.
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