Improvements in and connected with the Vaporizing- and Igniting- devices of Gas-, Petroleum-, and similar Motors.
Year: 1895

page_text: Date of Application, 23rd July, 1895-Accepted, 24th Aug., 1895
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COMPLETE SPECIFICATION.
Improvements in and connected with the Vaporizing- and Igniting-
devices of Gas-, Petroleum-, and similar Motors.
I, Carl Spiel, of Cannstatt, in the Kingdom of Württemberg, German
Empire, 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 refers to gas-, petroleum-, and similar motors of that sort in which
the heat generated by the explosion of the mixture of gas and air, or of petroleum
vapour and air respectively, is accumulated by bodies adapted to cause either the
next-following explosion of the mixture of gas and air, or first the evaporation of
the petroleum and the like, and then the explosion of the mixture of petroleum- !
vapour and air my improvements in motors of said kind relate to the use of a
large body instead of a number of small bodies, as employed up to now, and to
furnishing said body with a central channel extending through the said body in the
longitudinal direction of the latter, as well as with a cross-channel connecting the,
rear of said first channel with the tube-like space between the body and the inner
walls of the chamber enclosing the same.
My improved igniting- or evaporating and igniting body may thus be regarded as
a tube or hollow cylinder with very thick walls; the mantle or outer surface of
said body is used either for evaporating the petroleum and the like, or for heating
the air, or for both said purposes, whilst the surface of the channel is used for
igniting the explosive mixture. The outer surface is, as a matter of course, cooled
by leading the petrol or the air or both these substances onto it, but the heat
consumed by said substances, is continually replaced out of the store within the
thick walls of the body in question. Owing to the thickness of said walls, the heat
of the surface of the channel is not a bit reduced, but remains on such a height as
to be able to duly cause the next explosion.
The purpose of the cross-channel afore mentioned is to cause the explosion to be
propagated from the central channel to the tube-like space between the body in
question and its chamber, or to the compressed mixture contained in said space
respectively.
Referring to the accompanying drawing, a is the explosion-chamber within which
is arranged my improved igniting- or evaporating and igniting-body b. The latter
is provided with the longitudinal central channel 6¹ and the crossed channel b³,
which latter connects said channel 6' with the tube-like space a¹ between a and b.
The petrol to be evaporated, or the air to be heated, or both these substances, are
introduced through the channel c into the space a¹, or upon the outer surface of the
hot body b respectively. After the mixture of gas and air, or of petroleum vapour
and air respectively, has been properly diluted so as to be explosive, it is in known
manner compressed so as now to fill the channels 61 and 62, as well as the space a²,
and the explosion will spontaneously occur as soon as the compression has reached
its highest degree.
It will thus be seen, that this motor requires an igniting tube proper (which is
heated by any outer means) only for being started, whilst thereafter the igniting of
cach charge is produced solely by the heat of the surface of the channel 6'. As,
however, the explosion is propagated to the space a' by the mediation of the
channel 6, the heat resulting from the explosion is allowed to act upon the whole
urface of the body b.
:

page_text: I wish it to be understood, that the cross-channel 62 need not extend to one side
only of the main-channel 6', but there may be two or more of such channels
arranged radially with regard to said main-channel; and I wish it further to be
understood, that the channel or channels 62 need not indispensably be situated
exactly at the rear of the body b, but may be arranged more or less in the direction
to the front end of said body.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a gas-, petroleum-, or similar motor, the combination with the explosion-
chamber, of an igniting body adapted to accumulate the heat produced by the
explosions; said body being formed by a tube or hollow cylinder having very thick
walls and having a cross-channel or channels connecting the inner space of the said
body with the space surrounding the same, for the purpose as described.
2. In a gas-, petroleum-, or similar motor, the combination with the explosion-
chamber, of an evaporating and igniting body adapted to accumulate the heat
produced by the explosions; said body being formed by a tube or hollow cylinder
having very thick walls and having a cross-channel or channels connecting the
inner space of the said body with the space surrounding the same; the outer
mantle-surface being adapted to heat the air for the mixture, or to evaporate the
petroleum or the like for the same, the surface of the inner space of said body
being adapted to cause the explosion of the compressed mixture, substantially as
described.
1000.
WILHELM LORENZ,
By Cassell & Co.,
22 Glasshouse Street, Regent Street, London, W.C.,
Agent for the Applicant.