Improvements in Heating and Igniting Devices for Gas Engines.
Year: 1894

page_text: Date of Application, 25th Aug., 1894
Complete Specification Left, 2nd May, 1895-Accepted, 8th June, 1895
PROVISIONAL SPECIFICATION.
Improvements in Heating and Igniting Devices for Gas Engines.
I, ADOLPH SAURER-HAUSER, of Arbon, in the Republic of Switzerland,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
According to this invention I make the ignition-chamber of an explosive gas-engine
of the kind in which a liquid hydrocarbon is used, of spherical or approximately
spherical form. The gaseous mixture drawn in by the suction-stroke of the engine
piston passes into the ignition-chamber through a check-valve and is compelled by
a deflecting piece situated in the said chamber in front of the said valve to flow in
a thin sheet over the inner surface of the ignition-chamber; thus ensuring the
efficient heating of the explosive mixture by the wall of the chamber, which is in a
state of intense heat in consequence of the preceding explosions.
The accompanying drawing is a diagrammatic vertical section illustrating an
arrangement of ignition-chamber according to this invention.
The mixture of gas and air forming the motive fluid is produced in the well
known way by means of a mixing valve or the like, and is drawn by the suction-
stroke of the engine piston into the ignition-chamber a through a pipe 6 the
communication of which with the ignition-chamber is controlled by means of a
check-valve which opens towards the latter and works under the action of a
spring s.
During the suction-stroke of the piston of the motor-cylinder d, which
communicates with the ignition-chamber a, the valve c opens and allows the
mixture of gas and air to pass into the said ignition-chamber. A guide or
deflecting piece e, which may be of inverted dish-shape as shown and is fixed in
position in front of the valve, deflects the entering mixture in such a manner that
the latter is compelled to flow in a thin sheet along the heated wall of the chamber a
and is thus caused to take up a considerable amount of heat from the said wall.
The ignition-chamber a is of hollow spherical form, which facilitates the continuous
downward flow of the mixture in an unbroken sheet along the entire inner surface
of the ignition-chamber..
..
In its course, a portion of the mixture flows' past the mouth of the incandescent
ignition-tube, which opens into the ignition chamber; the said portion of the
mixture thus becoming efficiently raised in temperature by the intense heat of the
said tube. The supply-pipe b is arranged to pass over the ignition-tube in such
proximity to the latter as to take up heat from the flame 9 employed for heating
the ignition-tube; by this means the temperature of the gaseous mixture flowing
through the pipe b is raised preparatorily to the entry of the mixture into the
ignition-chamber a.
A
1004

page_text: Improvements in Heating and Igniting Devices for Gas Engines.
I, ADOLPH SAURER-HAUSER, of Arbon, in the Republic of Switzerland,.
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 :-
According to this invention I make the ignition-chamber of an explosive gas-
engine of the kind in which a liquid hydrocarbon is used, of spherical or
approximately spherical form. The gaseous mixture drawn in by the suction-
stroke of the engine piston passes into the ignition-chamber through a check-valve
and is compelled by a deflecting piece situated in the said chamber in front of the
said valve to flow in a thin sheet over the inner surface of the ignition-chamber,
thus ensuring the efficient heating of the explosive mixture by the wall of the
chamber, which is in a state of intense heat in consequence of the preceding
explosions.
The drawing filed with my Provisional Specification is a diagrammatic vertical
section illustrating an arrangement of ignition-chamber according to this invention.
The mixture of gas aud air forming the motive fluid is produced in the well
known way, by means of a mixing valve or the like, and is drawn by the suction-
"stroke of the engine piston into the ignition-chamber a through a pipe b, the
communication of which with the ignition-chamber is controlled by means of a
.check-valve c, which opens towards. the ignition-chamber against the action-of a
spring s.
-
During the suction-stroke of the piston of the motor-cylinder 'd, which
communicates with the ignition-chamber a, the valve c opens and allows the mixture
of gas and air to pass into the said ignition-chamber. A guide or deflecting
piece e, which may be of inverted dish-shape.as shown and is fixed in position in
front of the valve, deflects the entering mixture in such a manner that the latter is
compelled to flow in-a thin sheet along the heated wall of the chamber a and is
thus caused to take up a considerable amount of heat therefrom. The ignition-
chamber a is of. hollow spherical form which facilitates the continuous downward
flow of the mixture in an unbroken sheet along the entire inner surface thereof.
In its course, a portion of the mixture flows past the mouth of the incandescent
ignition-tube which opens into the ignition-chamber, the said portion of the
-mixture thus becoming efficiently raised in temperature by the intense heat of the
-said "tube.
The supply pipe b.is arranged to pass over the ignition-tube in such proximity
to the lattersas to stake-up-beat from the flame,g employed for heating the ignition-
tube; by this means the temperature of the gaseous mixture Howing through the
pipe bris raised., preparatory' to the entry of the mixture into the ignition-
..chamber a.
J
"Having now particularly described and ascertained the nature of the said
bvention and in what aner 'the time is to be "performed "I declare that what
claim-is-
1. For heating the mixture of gas and air in a motor of the kind actuated by a
liquid hydrocarbon, a device comprising a hollow, spherical ignition-chamber in
which the drawn in mixture of gas and airiis arranged to be so deflected at an inlet
or check-valve (c) as to flow in a thin sheet over the inner spherical surface of the
ignition-chamber and past an incandescent ignition-tube (f), so that it becomes
intensely heated and ignited, substantially as herein described.
2. In a device of the kind specified in the preceding claim, a dish-shaped

page_text: valve (c) for the purpose of still more certainly deflecting the mixture of gas and
air, substantially as herein described.
3. Arranging the pipe b for supplying the mixture of gas and air to the ignition-
chamber (a) of a device of the kind specified in Claim 1, so as to be under the
action of the flame (9) used for heating the ignition-tube (ƒ) provided on the said
ignition-chamber.
4. The improved heating and igniting device constructed as described and
shown.
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.