Improvements in Vaporizers for Petroleum-engines.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Vaporizers for Petroleum-engines.
I, OSVALD BOMBORN of Querstrasse 4 Leipzig Lindenau in the Empire of
Germany Engineer do hereby declare the nature of my said invention to be. as
follows:-
This invention relates to a vaporizer for petroleum engines, its arrangement
being such that the hot gases resulting from each explosion are utilized for
heating the vaporizer, and this without there being any danger of the gases or
mixture of vapor and air, being ignited within the vaporizer. To effect this
a valve opening communication between the vaporizer and the cylinder in which
the explosions takes place, is closed during the period of compression i.e. during
the upward stroke of the piston, and opens again only during or after each
charge is exploded, the resulting hot gases being thus admitted into the vaporizer.
The latter may be heated either by allowing such gases to pass directly
into same or indirectly, by admitting the gases into a chamber surrounding the
vaporizer.
The quantity of petroleum necessary for forming the vapor enters the vaporizing
chamber through a spring-controlled valve at each period of suction. The hot
walls of the chamber vaporize the petroleum, and these vapors then pass through
the valve into the cylinder and thus mix with the air entering through the valve.
On the return of the piston, therefore, such mixture of petroleum vapors and air
is compressed, the valves being at the same time closed.
The compressed mixture is now ignited in any suitable manner, for instance,
by means of an igniting-tube, and the hot gases resulting therefrom pass during or
immediately after the ignition of the charge from the cylinder through the now
open-valve into the vaporizer and thus heat the latter, whereas a premature ignition
of the charge by the hot walls of the vaporizer is prevented.
According to a modification the vaporizer is surrounded by a chamber, which is
brought into, or cut out of, communication with the cylinder by means of a
valve as soon as or immediately after an explosion has been effected, such valve
admitting the hot gases for heating the vaporizer and closing again before the
mixture ignites.
The mixture of vapours and air is compressed in the usual manner on the return
of the piston, the valves being at the same time closed, while such compressed
mixture is ignited in any suitable manner. It will thus be seen that as soon as or
after each charge is ignited; the valve opens and admits the hot gases into the
chamber, which gases thus heat the walls of the vaporizer and that after each
charge of petroleum to be vaporized, a cock or valve opens and allows the petroleum
vapors formed to mix with the air entering through valve, such mixture then passing
into the cylinder at each downward stroke of the piston.
The valves referred to may be operated in any suitable manner, for instance, by
the distributing valves of the engine or they may be made self-acting. The lamp
used for heating the igniting tube may be utilized for heating the vaporizer before.
starting the engine, and may also be arranged so that part of the flame is constantly
under, or impinges against, the walls of the vaporizer and thus promotes the
action of the latter. For preventing radiation of the heat of the vaporizer

page_text: same can be provided with a wrapper of suitable material such as asbestos or
fossil meal.
Dated this 22nd dor of Mer 1806
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.
I, OSVALD BOMBORN, of 9 Lindenstrasse Leipzig, in the Empire of Germany,
late of 4 Querstrasse, Lindenau, Leipzic 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 a vaporizer for petroleum-engines, its arrangement
being such that the hot gases resulting from each explosion are utilized for
heating the vaporizer, and this without there being any danger of the gases or
mixture of vapor and air, being ignited within the vaporizer. To effect this the
valve opening communication between the vaporizer and the cylinder in which the
explosion takes place, is closed during the period of compression i.e. during
the upward stroke of the piston, and opens again only during or after each
charge is exploded, the resulting hot gases being thus admitted into the
vaporizer.
The latter may be heated either by allowing such gases to pass directly into
same or, indirectly, by admitting the gases into a chamber, surrounding the
vaporizer.
Referring to the accompanying drawing,.
Fig. 1 shows in section part of a petroleum engine provided with the improved
vaporizer, arranged for being heated by the hot explosion gases direct.
Fig. 2 is a like view showing the arrangement of the vaporizer for indirect
heating
In the construction shown in Fig. 1 the quantity of petroleum, necessary for
forming the vapor enters the vaporizing chamber through the spring-controlled
valve a at each period. of suction ie., in the present case, at each downward
stroke of the piston. The hot walls of the chainber b vaporize the petroleum,
and these vapors then pass through the valve c into the cylinder d and thus mix
with the air entering through the valve e. On the return of the piston, therefore,
such mixture of petroleum vapors and air is compressed the valves e and c being at
the same time closed. The compressed mixture is now ignited in any suitable manner,
for instance, as shown in the drawing, by means of an igniting-tube f, and the hot
gases resulting therefrom pass during or immediately after the ignition of the
charge from the cylinder d through the now open-valve c into the vaporizer b, and
thus beat the latter whereas a premature. ignition, of the charge by the hot walls
of the vaporizer is prevented.
According to the construction shown in Fig. 2, the petroleum passes through
the valve a into the vaporizer. As soon as the valve i opens, the vapors generated
in the chamber b mix with. the air entering the cylinder d through valve e. The
vaporizer b is surrounded by a chamber h, which is brought into, or cut out, of,
communication with the cylinder d by means of the valve g, that is, after each
explosion, the valve g opens and admits the hot gases for heating the vaporizer
and closes again before the mixture of gas and air is compressed.
The mixture of vapours and air is compressed in the usual manner on the

page_text: return of the piston, the valves e and g being at the same time closed, while such
compressed mixture is ignited in any suitable manner, for instance, by means of
the pipe f.
It will thus be seen that as soon as or after each charge is ignited, the valve g
opens and admits the hot gases into the chamber h, which gases thus heat the walls
of the vaporizer b, and that after each charge of petroleum to be vaporized, the
cock i opens and allows the petroleum vapors formed to mix with the air entering
through valve e, such mixture then passing into the cylinder d at each downward
stroke of the piston.
The valves c, g, i may be operated in any suitable manner, for instance, by the
distributing valves of the engine or they may be made selfacting. The lamp
used for heating the igniting tube may be utilized for heating the vaporizer before
starting the engine, and may also be arranged so that part of the flame is constantly
under, or impinges against, the walls of the vaporizer and thus promotes the action
of the latter. For preventing radiation of the heat of the vaporizer same can
be provided with a wrapper of suitable material such as asbestos, or fossil meal.
Any suitable arrangement for supplying the petroleum or hydrocarbon may
be used.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a vaporizer for petroleum-engines, a vaporizing chamber (b) provided at
one end with a petroleum inlet and at the other with a valve (c) for opening and
closing at intervals the communication with the cylinder of the engine, substantially
as described and shown.
2. In a vaporizer for petroleum engines, a vaporizing chamber provided at
one end with a petroleum inlet and at the other with a vapor-outlet valve, such
vaporizing chamber being surrounded by a chamber or jacket communicating
with the cylinder of the engine when the valve (g) is open, substantially as
described & shown.
Dated this 10th day of February 1897
MARKS & CLERK,
18, Southampton Buildings, London, W.C., Agents.