Improvements in Oil, Gas, and other Motive Power Engines.
Year: 1896

page_text: Date of Application, 25th Jan., 1896-Accepted, 29th Feb., 1896
COMPLETE SPECIFICATION.
Improvements in Oil, Gas, and other Motive Power Engines.
I, JULIUS SÕHNLEIN of 15 Wilhelmstrasse, Wiesbaden, Germany, Engineer,
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 has for its object to construct a motive power engine in which
various fuels such as, for instance, benzine, benzoline, crude petroleum, purified
petroleum, animal oils, oil gas, and carbon dust can be used without altering,
in any way, the construction of the engine.
This object is effected mainly by an improved method of working and by a
novel construction of the cylinder as well as by an improved arrangement of
the valves for controlling and regulating the air supply.
Fig. 1 on the accompanying drawing shows a longitudinal section of the
engine, whilst Fig. 14 is a detail view.
The action of the engine is as follows:-
When the piston K reaches the end of its back stroke the port a is opened
and air enters therein and passes into the chamber a' in order to be compressed by
the piston K at the next forward stroke. When the piston reaches the end of this
stroke a suitable volume of air from a' enters the combustion chamber Z' of the
cylinder either through the port or the pipe d" and the admission valve v or
through both at the same time. Before the piston uncovers the port 6 of the
chamber a' the port c, which is larger, is opened and the products of combustion are
forced out through it by the air coming either from 6 or through the the valve v so
that eventually the chamber = becomes filled with air.
To mix this air in suitable proportions for the different fuels above mentioned
the following arrangement has been devised :-The pipe d is connected to a
fuel reservoir T or to a gas supply valve. As the piston K reciprocates it
alternately compresses and rarefies the air in the chamber a¹ and pipe d" so
that, as a result of the changes of pressure thus produced, the fuel is sucked
from the reservoir T down through the pipe d and forced or conveyed through the
valve into the cylinder ¹. Located between this valve and the cylinder z¹ are
a number of vaporizing tubes or a gasifier having the form of a turbine and
which is heated by the explosions. Fig. 1 shows a front view of the tubular
vaporizer. The fuel before gaining access to the cylinder passes through this
vaporizer and is heated and vaporized. In order to be able to regulate the
temperature of the gasifier and the state of the mixture the inflow through the
port b and pipe d" is capable of being regulated by means of the valves y and x, so
that, as desired, a greater or smaller amount of air can be admitted to the cylinder
through the valve and the gasifier. In consequence of this arrangement the
mixture is either admitted with much air and in a cool state or with little air and in
a heated state. In the latter case the additional supply to insure combustion is
introduced directly through the port b.
In this manner and by means of the valves x and y it is possible to give the
proper mixture for any of the fuels afore mentioned and also to regulate the
temperature of the gasifier r, for, as is well known, its temperature will depend
upon the amount of air introduced.
During the back stroke of the piston K it compresses the mixture (prepared
in either one way or the other) which is ignited, at the iguiting tube Z,

page_text: whenever the piston reaches the end of its stroke. Thereupon the piston is
driven forward by the explosion and the products escape through the port cas
soon as it is uncovered.
When the pipe d is closed to the chamber a¹ by means of the valve a the
fuel can still be conveyed to the cylinder through the valve v. The exhaust
port c opens as already explained before the port b. The exhaust gases are
allowed to expand freely for some time through the port c and in consequence of
this free expansion it eventually happens that a sufficiently strong vacuum is
created in the cylinder to draw or suck the fuel in through the valve v.
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
consider novel and desire to claim is:-
1. A motive power engine adapted for using various fuels, such as animal oils,
petroleum, gas, carbon dust, or the like, characterized by the connection of the front
part a' of the cylinder with the combustion chamber z¹ on the one hand and the
fuel reservoir T on the other hand, by means of the pipe d", the valve v and the
vaporizer r; valves such as x and y, operated from the outside, being used to
control and regulate the air mixture, substantially as hereinbefore described with
reference to the drawing annexed.
2. A motive power engine adapted for using various fuels, wherein, after the
closing of the port the air previously drawn into the front part a¹ of the cylinder
is, at the forward stroke of the piston, forced; in suitable quantities, through a
pipe d", a valve v and a vaporizer, into the combustion chamber, substantially as
hereinbefore described with reference to the drawing annexed.
3. A motive power engine, adapted for using various fuels, in which the fuel
is exhausted, by the changes of air pressure in the air chamber (a'), from a
reservoir into a pipe (d) and conveyed through a valve (v) and a vaporizer to the
combustion chamber of the engine, substantially as herein before set forth.
. Dated this 24th day of January 1896.
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.