Improved Device for the Production of the Explosive Mixture in Oil Engines.
Year: 1898

page_text: Date of Application, 25th Jan., 1898-Accepted, 5th Mar., 1898
COMPLETE SPECIFICATION.
Improved Device for the Production of the Explosive Mixture in Oil
Engines.
I, EMIL CAPITAINE, Civil Engineer, of Frankfurt on the Main, in the German
Empire, do hereby declare the nature of this 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 improvements in means for the formation of the ex-
plosive mixture or charge in oil engines, and has for object the production of
an intimate mixture of oil-vapor and air in an oil engine. The invention consists
in the arrangement and use or combination of three air-passages which are so
arranged that the oil-vapor is for as short a time and as little as possible in contact
with the cooled walls of the cylinder or explosion chamber.
On the accompanying drawing, is the cylinder, the piston, the explosion
chamber, the vaporiser for the oil, which tube is heated outside by a flame and
inside by the heat generated by the explosions; ab and c are the three air-admit-
ting valves; z is the pipe which supplies the oil.
During the suction period the oil admitted or drawn through pipe is driven
into vaporiser by the action of the air which enters through valve a From
the vaporiser it passes into the explosion chamber and thence into cylinder v.
The oil is vaporised in the vaporiser and this oil vapor is forced into the combus-
tion chamber by the air which enters at a.
As at the same time air is admitted through valve b, the mixture of air and
vapour issuing from vaporisera will be driven with increased velocity into the
cylinder space.
As the mixture of oil vapour which issues from the vaporiser mixes little or not
at all with the air which is admitted through valve b, the said mixture is sur-
rounded by the air passing or drawn in through the latter valve, whereby the
oil vapour is prevented from coming into intimate contact with the walls of the
explosion chamber and cylinder and thus condensing thereon. So far, the mix-
ture is a very incomplete one but my intention up to this point has been to avoid
as much as possible the condensation of the oil vapour.
Valve c in the piston allows air to flow through the still incomplete mixture
of oil vapour and air, so as to render the mixture more perfect. It is thus possible
to effect a more or less intimate mixture just before the end of the suction period
or during the whole or a part of its duration. This valve can be actuated by
known devices in such a manner that it is in operation during the full time of
the suction period or more or less towards the end thereof. Furthermore, the air
that is admitted through valve c may be allowed to flow into the cylinder in an
annular shaped spray or stream, or in a greater or less number of fine streams.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what
I claim is:-
(1). In oil engines, a device for the production of an intimate mixture of oil

page_text: vapour and of air, consisting of three air passages; the first a driving the oil vapour
out of the vaporiser, the second b forcing the mixture of vapour and air into the
cylinder while the third c effects the thorough commingling of the oil vapour and
the air.
(2). In oil engines, the combination of the three air inlet valves abc substan-
tially as and for the purposes described with reference to the annexed drawing.
1000
Dutc
For the Applicant,
GEDGE & FEENY,
60, Queen Victoria Street, London,
Chartered Patent Agents.