Improvements in Petroleum Engines.
Year: 1890

page_text: Date of Application, 24th Feb., 1890-Accepted, 3rd May, 1890
Improvements in Petroleum Engines.
We, JOHANN MATHÄUS GROB, OSCAR SCHULTZE, and ANTON NIEMOZIK, all of
Eutritzsch-Leipzig in the German Empire, Merchants, 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:-
The improvements of this invention relate to petroleum motors in which the
vapourizing or gasifying chamber is in direct communication with the explosion
chamber so that the highly heated combustible gases may act directly on the
vapourizing surfaces.
The motor of this invention is provided with two air inlets one being as small as
practicable in order to avoid cooling and serving wholly for the proper distribution of
the petroleum to the vapourizing surfaces and a larger one through which the air for
combustion proper
is supplied, the larger air supply being so arranged that the oil
vapour (oil particles) upon entering the cylinder are filled up with air without coming
in contact with the cooled cylinder surfaces.
In the accompanying drawing Fig. 1 shews the petroleum motor of this invention in
vertical section taken through the air inlets and vapouriser. Fig. 2, is a section
taken through line -y of Fig. 1.
A is the cylinder, B combustion chamber, C vapourizer, D small air inlet, E larger
air inlet, G oil supply tube, H a valve in connection through lever h with valve of air
inlet E by which valve H is operated. When the engine is working air enters past
valve of inlet E and upon the lifting of this valve the valve H is opened according to
the velocity of the entering air to a greater or less extent by the intermediate lever h.
At the same time the oil is forced by a pump to the air inlet valve H and is divided
by the air into fine spray. The oil particles ascend against the somewhat inclined
surface of C where they are converted into vapour and passed mixed with the small
quantity of air in the form of a compact jet into the cylinder whilst the air entering
past valve E envelopes and suitably mixes with the laterally entering gas jet.
When the mixing with the larger quantity of air is complete, the vapour will have
been converted into the form of bubbles or globules like water steam in the atmosphere
with only little precipitating capacity. In this state it comes to explosion when one
portion of the burning gases spreads through the vapourizer C the surface of which it
heats and instantaneously after the explosion drives the after damp oil past valve H
into air inlet pipe D.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that we wish it
to be understood that we lay no claim to arrangements other than those in which
the air supply through E is mixed with that through H after the latter has passed
through the vaporizer, what we claim is :
1. In petroleum motors a double air inlet or two air inlets H, and E the former
serving solely for distributing the oil on the vapourizing surfaces and the latter and
larger one for the introduction of the air for combustion substantially as described
and shewn.
2. In petroleum engines the introduction of the air for combustion at right angles
or nearly so to the entering gas jet in the manner that the gases of the same are

page_text: enveloped without coming in contact with the cool surfaces substantially as described
and shewn.
Dated this 24th day of February 1890.
CAPITAINE & VON HERTLING,
89, Chancery Lane, London, W.C., Agents for the Applicants.