Improvements in Ignition Devices for Gas Motors.
Year: 1890

page_text: Date of Application, 25th Nov., 1890-Accepted, 7th Mar., 1891
COMPLETE SPECIFICATION.
Improvements in Ignition Devices for Gas Motors.
I, EMIL KASELOWSKY, of 17/18, Chausée Strasse, Berlin, N., Germany,
Counsellor of Commerce, 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 object of this invention is an improvement on the disposition of an auxiliary
inlet for the explosive mixture with separate ignition device situated behind the
same in addition to the inlet proper for the gas and air mixture, which disposition
is embodied in Royal Letters Patent No. 4574 A.D. 1890.
The said arrangement is capable of being so modified without changing in any
respect the manner of action, as to cause also the main charge to be supplied
through the igniting sleeve, if the latter is made to enclose at the same time suitable
regulating devices for a corresponding supply of power and ignition charge; the
rest of the arrangement mentioned above remains completely unaltered. Through
such regulating devices the gas and air valve or one of these two valves is so
regulated that at the commencement of the initiatory period a less explosible gas
mixture of but little gaseity is sucked in and that at the termination of the
initiatory period a rich explosible gas mixture enters into the ignition sleeve, filling
the same.
The "closeable" ignition pipe with condensation chamber, constructed in
accordance with the main Patent referred to, being disposed direct at the ignition
sleeve, the consequence of this two-fold feeding of the ignition sleeve with gas
mixture is as in the main Patent an economical working and feeding of the
motor as well as a secure ignition of the charge.
Referring to the accompanying drawing, in which like letters indicate like
or corresponding parts, the above alteration of the main Patent is represented
in two modifications, Figs. 1 and 2 illustrating a modification, in which the above
described feed of power and igniting mixture is regulated by governing the gas
valve, while in the modification represented by Figs. 3 and 4, the same purpose
accomplished by regulation of the air admission channel. Also regulation of both
feed channels, i.e. air and gas duct, may of course be applied.
The first mentioned arrangement is represented by Figs. 1 and 2 in two cross
sections, Fig. 1 being a cross section along line A B Fig. 2, and Fig. 2 a cross
section along line C D Fig. 1.
The
e designates the power cylinder which is joined to the ignition sleeve z.
latter has its outward closing effected by the spontaneously regulated valve » which
serves for the admission of the power and ignition charge. The admission of air
takes place through sleeve that of the gas through sleeve g. g¹ is the closing
valve for the latter. Valve is actuated with regard to closing by helical
spring while the opening is effected by lever with roll p' moved on the
cam k.
"'
For the mixing valve the closing is effected through spring f and the opening
by aid of levert which is operated with its roll p by cam k. The two cams referred
to are so mounted on the shaft r actuated by the engine that cam k is displaceable
in the known manner on the shaft and is operated by the governor, in order that,
when the engine works at excessive speed, the gas valve g' may be kept closed,
thereby admitting of reduction in charge and of explosion.
The improved engine works as follows:
At the commencement of the suction period, mixing valve r is opened by cam k
and gas valve g by cam ; suction, by cylinder c, of a mixture of air and gas

page_text: takes place, which mixture may be made to be more or less rich in gas according as
the opening of the spontaneously regulated gas valve g¹ is effected.
At the termination of the suction period the lifting of the gas valve is increased,
whereby a higher rate of gas suction is produced, so that the gas mixture entering
at the finish is highly explosible. This gas flows through the ignition sleeve, filling
the same, so that, on the closing valve w, which leads to the igniting tube d, being
closed, this easily and securely ignitible gas mixture is compelled to enter into said
igniting tube and to infallibly produce ignition.
In the above manner, a reliable ignition is rendered possible with the application
of a single sleeve supplying the gas mixture, while simultaneously greatest possible
economy in the consumption of gas is attained.
The modified arrangement Figs. 3 and 4 differs from that herebefore described
merely by the application, in this modified device, of an air valve, which is
throttled at the termination of the suction period so that, as the lifting of the gas
valve and its passage aperture remain unaltered, the enriching of the aspired
mixture ensues at the termination of the suction period by throttling of the air
inlet.
mk2 of
The air valve is actuated by lever 2 which runs with its roll 2 on a
shaft a driven by the engine. The rest of the arrangement is the same as that
herebefore described.
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 the igniting-device combination for gas motors embodied in Roya. Letters
Patent No. 4574 A.D. 1890, the modification, whereby also the main charge is
drawn by suction through the ignition sleeve at the commencement of tl suction
period, said purpose being accomplished by the application of a regulating device
producing at the termination of the suction period a throttling of the air "dmission
or an increase of the gas supply, whereby an explosive mixture richer gas is
drawn by suction into, and fills, the ignition sleeve at the termination of piston
stroke so that a very sure ignition is attained through the "closcable ignition
tube provided in the rear of the ignition sleeve with condensation champer, while
the consumption of gas for the power charge is rendered most economical,
substantially as set forth.
Dated this 25th day of November 1890.