COMPLETE DEVITA TON Ignition Apparatus for Gas and Oil Engines.
Year: 1895

page_text: Date of Application, 27th Apr., 1895-Accepted, 22nd June, 1895..
COMPLETE DEVITA TON
Ignition Apparatus for Gas and Oil Engines.
I, JOSEF KLUNZINGER, of Mozartstrasse 6, Heilbronn, in the Empire of
Germany, Manufacturer, 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 to provide an improved ignition apparatus for use
in gas and oil engines of the four cycle type, by which the ignition takes place in a
cup-shaped chamber kept red hot by the heat of the outflowing exhaust gases, a
clack valve being also provided to regulate the admission of the exhaust gases to the
cup-shaped chamber to keep it at the necessary temperature for ignition purposes.
The accompanying drawings illustrate the invention,
Fig. 1 being a plan,
Fig. 2 a vertical section of that part of the engine to which the invention relates,
while
Fig. 3 is a detail of the regulating clack valve.
Over the exhaust valve g a perforated or wire ignition cup a is placed in a recess
in the chamber, said cup a being closed by a screwed cover o from communication
with the atmosphere. The setting of the valve 6 can be altered, to regulate the
admission of the exhaust gases to the cup-shaped chamber, by means of a hand
lever m from the outside of the chamber f. A glowing body such as coal or sponge
is laid in the cup a to produce the first ignition when the gas is brought into contact
with it. On the lifting of a valve e on the outward stroke of the engine a mixture
of air and gas is sucked through the said valve e, and during the compression which
takes place on the backward stroke the said mixture is compressed into the chamber f
and comes in contact with the glowing body which fires it, the piston being thereby
propelled forward. At the fourth cycle the exhaust valve is opened by suitable
mechanism on the engine, and the exhaust gases in their passage out strike on the
ignition cup, pass through the same and heat it, whereby the subsequent ignitions
are effected.
If the regulating clack is in the dotted position as shown at Figure 2, the
greater part of the exhaust gases passes through the ignition cup a and from thence
direct to the exhaust valve 9 the temperature being thereby higher than when the
valve b is in the position shown in full lines at Figure 2. In this manner by a
suitable fixing of the regulating clack 6 the temperature of the ignition cup a can
be so adjusted that the ignition takes place at the proper moment, if the placing of
the piston and the degree of compression are correct. As soon as the engine has
reached its normal speed the regular ignition takes place by means of the ignition
cup a alone so that a renewal of the glowing body, which at first caused the ignition,
is unnecessary.
When fluids such as petroleum, benzine or the like are used these are sucked
through a valve into a chamber i and are there vaporized by the action of a flame
situated outside of the chamber i the resulting gas being mixed with air which enters
by the air valve e. For the purpose of producing instantaneously a finely divided
vapour a metal spiral is inserted in the chamber i as shown at k Figure 2, or a
metal cylinder with perforated walls may be employed for this purpose.
By means of the flame the chamber i is at the first brought to a high temperature to
vaporize the oil, and during the early working of the engine the first explosions of the
gases are by this means produced, the subsequent ignitions taking place by the
077

page_text: As soon as the engine has reached its
contact of the gases with the ignition cup a.
normal speed all outside heating is unnecessary.
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
claim is
1. Ignition apparatus for gas and petroleum engines consisting of a perforated
ignition cup a arranged over the exhaust valve in the inside of the explosion
chamber containing a glowing body by which the first ignition is produced, and
also a regulating clack & which allows more or less of the exhaust gases to pass
through the cup a in order to keep it at the desired temperature..
+
2. In combination with the ignition apparatus referred to in Claim 1, the.
gasifying chamber heated from the outside by means of a flame as and for the
purpose set forth.
Dated thin 90th An- of & nil 1905
WALLACE FAIRWEATHER,.
Chartered Patent Agent,
62 St. Vincent Street, Glasgow, Agent for the Applicant.