Improvements in Igniting Apparatus for Gas and Oil Motor Engines.
Year: 1889

page_text: Date of Application, 22nd Nov., 1889
Complete Specification Left. 25th July, 1890-Accepted, 30th Aug., 1890
PROVISIONAL SPECIFICATION.
[Communicated from abroad by THE GAS MOTOREN FABRIK DEUTZ, of Deutz-on-
the-Rhine, in the German Empire, Manufacturers.]
Improvements in Igniting Apparatus for Gas and Oil Motor Engines.
I, CHARLES DENTON ABEL, of No. 28 Southampton Buildings, Chancery Lane, in
the County of London, Consulting Engineer and Patent Agent, do hereby declare the
nature of this invention to be as follows:-
This invention relates to the construction of igniting apparatus for gas and oil
motor engines consisting of metal tube heated by an external flame within a
surrounding casing such as was described in the Specification to Patent No. 11444
of 1887. According to the present improvement, instead of effecting the heating of
the metal tube by a gas flame, it is heated by a flame of petroleum vapour. For
this purpose the igniting tube has its open end fitted into the passage of a horizontal
cylindrical casing surrounding the igniting tube and communicating by its passage
with the engine cylinder.
At or near the end of the casing next the cylinder a passage is formed in the
body, extending partly round it and open at each end, such ends being presented
downwards, and between these two openings is formed an opening in the side of the
casing itself, surrounded by a tubular branch.
To the one end of the passage is attached a pipe through which it is supplied with
liquid petroleum, and to the other end is attached one end of another pipe whose
other end is hent up, so as to face the branch tube on the casing and terminating in
a nozzle. Thus, assuming the igniting tube and casing to be heated, the liquid
petroleum entering the passage of the casing, will become volatilised by the heat,
and the vapour issuing with force from the nozzle at the other end, will carry air
along with it into the branch tube and casing, and in entering into combustion, the
flame will impinge upon the igniting tube and the interior of the casing, thereby
highly heating these parts and the passage through which the liquid petroleum passes.
In order to effect an intimate mixture of the petroleum vapour with the air as it
issues from the nozzle a metal bar is by preference fixed across the branch tube,
against which the jet of vapour impinges, whereby it is effectually split up.
For heating the igniting tube and casing in the first instance on starting the
engine, an oil spirit lamp is temporarily placed under the branch tube.
Dated this 22nd day of November 1889
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Igniting Apparatus for Gas and Oil Motor Engines.
I, CHARLES DENTON ABEL, of No. 28 Southampton Buildings, Chancery Lane, in
the County of London, Consulting Engineer and Patent Agent, 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 the construction of igniting apparatus for gas and oil
motor engines consisting of metal tube heated by an external flame within a
surrounding casing such as was described in the Specification to Patent No. 11444
of 1887. According to the present improvement, instead of effecting the heating of
the metal tube by a gas flame, it is heated by a flame of petroleum vapour. For
this purpose the igniting tube has its open end fitted into the passage of a horizontal
cylindrical casing surrounding the igniting tube and communicating by its passage
with the engine cylinder,

page_text: At or near the end of the casing next the cylinder a passage is formed in the body,
extending partly round it and open at each end, such ends. being presented down-
wards, and between these two openings is formed an opening in the side of the
casing itself, surrounded by a tubular branch.
To the one end of the passage is attached a pipe through which it is supplied with
liquid petroleum, and to the other end is attached one end of another pipe whose
other end is bent up, so as to face the branch tube on the casing and terminating in
a nozzle. Thus, assuming the igniting tube and casing to be heated, the liquid
petroleum entering the passage of the casing, will become volatilised by the heat,
and the vapour issuing with force from the nozzle at the other end, will carry air
along with it into the branch tube and casing, and in entering into combustion, the
flame will impinge upon the igniting tube and the interior of the casing, thereby
highly beating these parts and the passage through which the liquid petroleum
passes.
The construction of the said igniting apparatus is shewn on the accompanying
drawing in which Fig. 1 shews a longitudinal section of the apparatus, and Fig. 2 a
cross section on line XX. Fig. 1. The heated igniting tube, which ignites the
cylinder charge when its interior is put in communication therewith in the known
manner, is fixed in the passage of casing & leading to the engine cylinder C. At a
point by preference as near the cylinder as possible, a passage is formed extending
partially round it, and between the two open ends of the passage an opening is
formed on the underside of the casing surrounded by a branch tube f. To the one
end of the passage is attached a pipe a communicating with a supply of liquid
petroleum, and to the other end is attached a pipe d terminating in a nozzle facing
the branch tube f, in which is fixed a transverse metal rod g. Assuming the casing
to be in a heated condition the liquid petroleum entering the passage of the casing
from pipe a will become volatilised by the heat, and the vapour issuing with force
from the nozzle e of d, will carry the requisite air supply along with it through the
branch tube f, and in entering into combustion, the resulting flame produced in the
space c will impinge upon the igniting tube and the interior of the casing b,
thereby highly heating these parts and the passage b' in which the liquid petroleum
is vaporised.
The intimate mixture of the jet of petroleum vapour with the air carried by it, is
insured by causing the jet of vapour to impinge upon the rod g, whereby it is
effectually spread.
For heating the igniting tube and casing in the first instance on starting the
engine, an oil or spirit lamp is temporarily placed under the branch tube f.
By arranging the passage band jet d as close as possible to the cylinder, the heat
is concentrated at that point and acts in the most advantageous manner in firing the
charges.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
-
In apparatus for igniting the charges of gas or oil motor engines, the combination
with the igniting tube of a tubular casing b having a channel 6' into which liquid
petroleum is introduced through a pipe a, a branch tube with metal rod g, and a
piped with nozzle e through which petroleum vapour formed in the passage b
issues into the branch tube f and in mixing with the necessary air, enters into
combustion within the casing so as to heat this and the tube hat a point near the
engine cylinder, substantially as described.
Ted L: OF
1000
ABEL & IMRAY,
Agents for the Applicant.