Improvements in Fuel Feeding Devices for Petroleum Motors and similar Combustion Engines.
Year: 1897

page_text: Improvements in Fuel Feeding Devices for Petroleum Motors and
similar Combustion Engines.
I, OSWALD BOMBORN, of Hagen (Westphalia), in the Empire of Germany,
Engineer, do hereby declare the nature of my said invention to be as follows:-
This invention relates to an improved fuel feeding device for petroleum motors
and similar combustion engines consisting (1) in the arrangement of a flat slide or
valve provided with a recess for regulating or gauging the quantity of fuel (2) in
the arrangement of a screw by which the space or area of the recess of the slide or
valve may be decreased or increased i.e. accurately regulated, such screw being
operated either by hand or a regulator, and (3) in an arrangement according to
which the fuel together with gases free from air, for instance, waste gases of
combustion engines, is pressed into the vaporizer or combustion chamber of the
engine so as to prevent accidental combustion of fuel, before the latter is mixed
with the combustion air in the combustion-chamber, such accidental combus-
tion of fuel being possible on account of the increase of pressure or the action of
hot walls.
The object of this invention is therefore to accurately regulate or gauge the
required quantity of fuel and to feed same without any loss i.e. in equal quantities
to the combustion air either as vapour or in a liquid state.
The fuel is fed from a receptacle, which is under pressure, through a passage and
an inlet pipe into the recess of the slide or valve thus forcing out the contents of
such recess (pressure-gases of the preceding working period) through an opening.
The slide is now moved by the valve gearing into a certain position and its
contents are subjected to pressure, in this case by means of gases free from air,
and carried through an outlet pipe into two chambers and into the cylinder where
they come in contact with the combustion air passing in and are ignited by the
increase of pressure or action of a pipe heated by a lamp.
The contents of the recess are regulated or gauged by means of a screw either
by hand for a certain consumption of fuel or through a regulator for the consump-
tion of fuel necessary for each operation.
The lamp for heating the igniting pipe may also be used for heating the
vaporizer.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.

page_text: Improvements in Fuel Feeding Devices for Petroleum Motors and
similar Combustion Engines.
I, OSWALD BOMBORN, a subject of the Emperor of Germany and resident of
Hagen (Westphalia), in the Empire of Germany, Engineer, do hereby declare the
nature of my said invention and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
This invention relates to an improved fuel feeding device for petroleum motors
and similar combustion engines consisting (1) in the arrangement of a flat slide or
valve provided with a recess for regulating or gauging the quantity of fuel, (2) in
the arrangement of a screw by which the space or area of the recess of the slide or
valve may be decreased or increased i.e. accurately regulated, such screw being
operated either by hand or a regulator; this screw can however be dispensed with
on inserting in the feed pipe of the fuel a throttle tap controlled
or actuated from the regulator, and (3) in an arrangement according to
which the fuel together with gases free from air, for instance, waste gases of
combustion engines, is pressed into the vapourizer or combustion chamber of the
engine so as to prevent accidental combustion of fuel before the latter is mixed
with the combustion air in the combustion chamber, such accidental combus-
tion of fuel being possible on account of the increase of pressure or the action of
hot walls.
-
The object of this invention is therefore to accurately regulate or gauge the
required quantity of fuel and to feed same without any loss i.c. in equal quantities
to the combustion air either as vapour or in a liquid state.
In the accompanying drawing such a device is shown in various modification's: --
Figs. 1 & 2 represent a sectional view of one modification of the device, the
flat slide or valve being in two different positions.
.
Figs. 3 & 4 represent a similar sectional view of a second modification of the
device which differs from that according to Figs. 1 & 2 merely through the arrange-
ment of the feed canals or passages.
Fig. 5 is a sectional view of another modification according to which the
adjustable screw of the slide or valve is replaced by a throttle tap inserted in the
feed pipe of the fuel.
The feed passages for the fuel and the pressure medium E & F respectively,
communicate with a casing G having four canals or passages e, m, n, o which may
communicate, with one another in pairs by means of the recess of the flat slide
or valve D.
According to the modification of Figs. 1 & 2, these canals or passages are
arranged in such manner that the first and third or the second and fourth canals
may communicate with one another by means of the recess of the flat slide or
valve D, the flat slide recess h thus being of U-form. According to the modifica-
tion of Figs. 3 & 4, the canals or passages », c and m, o respectively, which are
to communicate with one another, lie in juxta-position, the recess h of the flat
slide or valve thus forming a mere cylindrical bore.
In the position of the flat slide or valve 1) according to Figs. 1 & 4 respectively,
the canals or passages e & n are communicating with one another, the fuel passes
through the pipe E and the canal or passage e into the recess of the flat slide
and forces out the contents (pressure gases of the preceding working period) of
such recess through the canal or passage n.
In the position of the flat slide D according to Figs. 2 & 3 respectively, the canals
or passages o & m are communicating with the recess of the flat slide or valve.

page_text: In this position, the pressure medium passes into the canal or passage o and tho
recess of the flat slide or valve where it forces out the liquid fuel situated in the
recess of the slide, such fuel passing into the canal or passage m.
The modification as shown is arranged for the employment of liquid fuel, for
instance, petroleum, benzine or the like, which must be vapourized before entering
into the combustion chamber or cylinder of the engine. According to this
arrangement, the passage m communicates with a chamber C provided with a
back pressure valve d, such chamber also serving as vapourizer and heated in a
suitable manner. The vapourizer C communicates with the combustion chamber
or cylinder A by means of a channel or passage c, such cylinder being provided
with the necessary air for combustion through a channel or passage B. Valves C¹ &
B may be arranged in any suitable manner for regulating the feed of the fuel
and the air for combustion into the cylinder A. The explosion of the mixture
fed into the cylinder A is effected by a glow pipe L which is provided on the
cylinder, such glow pipe being heated by a lamp K. The lamp K may also be
used for heating the vapourizer C.
gas
The above described arrangement of the vapourizer C and cylinder A is known
per se and not subject matter of the present invention; the same is therefore
only explained by way of example. On employing fuel in form of gas, the arrange-
ment of the vapourizer C is of course not necessary, but may be entirely dispensed
with and the passage m made to communicate directly with the combustion
chamber or cylinder of the engine.
The said device operates as follows:-In the position shown in Figs. 1 & 4
respectively, the fuel passes through the pipe E and the inlet passage e into the
recess h of the slide or valve D.
The slide is now moved by the valve gearing into the position shown in
Figs. 2&3 respectively by the regulator of the. engine and its contents are
subjected to pressure, in this case by means of gases free from air, and carried
through the canal m into the vapourizer C and then into the cylinder A where they
come in contact with the combustion air passing in and are ignited by the action
of the pipe L heated by the lamp K.
The contents of the recess are regulated or gauged by means of a screw either
by hand for a certain consumption of fuel or through a regulator for the con-
sumption of fuel necessary for each operation.
0
H being
Fig. 5 shows a somewhat altered modification, the adjustable screw.
omitted and in the canal or passage through which the fuel fed from the pipe F
into the recess h of the slide or valve D passes, a throttle tap I being inserted,
which is controlled or actuated by the regulator and through its more or less
opened or closed position, regulates or gauges the filling i.e. the quantity of fuel
passing into the recess h of the slide or valve. The recess h itself is in this
case unchangeable and therefore only destined for the largest filling possible.
The arrangement for turning the cock I through the regulator is not based on the
said invention and may therefore be constructed in any suitable manner.
Having now particularly described and ascertained the nature of my said inven-
5 tion and in what manner the same is to be performed, I declare that what I
claim is:
1. Improved device for feeding fuel into the ignition or explosion chamber of
combustion engines, for instance petroleum motors and the like, operated by gases
free from air, for instance waste gases of combustion engines as pressure medium
0 substantially as and for the purpose set forth.
2. Device for feeding the fuel for combustion engines characterized by the
arrangement of a flat slide or valve D whose recess h serves as gauging and
depositing chamber for the quantity of fuel to be fed or supplied, for which purpose,
the recess of the slide or valve may on the one hand communicate with the
5 supply passage for the fuel and with the outlet passage n for the pressure medium

page_text: and on the other hand with the supply passage o for the pressure medium sub-
stantially as and for the purpose set forth.
3. An improved fuel feeding device for combustion engines in which an
adjustable screw H is arranged for regulating or gauging the contents of the
recess of the slide or valve h, substantially as and for-the purpose set forth.
4. An improved fuel feeding device for combustion engines in which a throttle
tap I is provided for regulating or gauging the quantity of fuel passing into the
unchangeable recess h of the slide or valve substantially as and for the purpose
.set forth.
0011
M... 1000
MARKS & CLERK,
18, Southampton Buildings, London, W.C., Agents.