Motor Engine Worked by Explosive Fluid Mixtures.
Year: 1897

page_text: Date of Application, 6th July, 1897--Accepted, 7th Aug.,
1897
COMPLETE SPECIFICATION.
Motor Engine Worked by Explosive Fluid Mixtures.
I, CHARLES ANDRÉ GEORGES GALLICE, of 10 Rue d'Anjou, Paris, France, 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:-
My invention relates to an improved construction of motor engine, worked by
explosive fluid mixtures, the main features of novelty of which consist firstly in
arranging four or any other number of cylinders in a group so that their admission
ends are all controlled by one and the same admission valve or equivalent device,
and their charges ignited by one and the same ignition device; secondly in the
arrangement for transmitting the reciprocating motion of the pistons to the engine
shaft, whereby rollers carried by the piston rods are engaged in a groove formed
round the periphery of a drum fixed on the shaft, the said groove being so formed
that by the reciprocating motion imparted to such rollers by the pistons, the drum
and consequently the shaft have a continuous rotary motion imparted to them.
The motor engine can be worked either with a two-stroke or with a four-stroke
cycle; in the former case the shaft must be made to perform one revolution for;
each double stroke of the pistons, and in the second case it must perform only.
half a revolution for each double stroke of the pistons.
I will describe the said invention with reference to the accompanying drawings,
in which Figure 1 shews a vertical section on line a-b Figure 2 of a motor engine
constructed by way of example with four motor cylinders, and working with a.
four-stroke cycle. Figure shews a top plan view with the cover U removed...
Figure 3 shews a horizontal section on line c d Figure 1, and Figure 4 shews the
developed periphery of the cam drum.
The pistons a, a &c. are shewn in Figure 1 at the end of their upstroke, and the
cylinder of piston a is about to receive an explosive charge by the suction down
stroke of the piston; this charge enters through the port 6' of the circular rotary,
slide valve T, and the opening c of the cover U, which is pressed against the slide
by means of springs R R¹.
The piston a' has just completed the compression of an explosive charge drawn
into its cylinder by the preceding down stroke, and is connected by the port 611 of
the rotary slide T with the cavity c¹ of the cover U, in which is fixed the continuously
acting electric igniter I, which may or may not have an incandescent tube combined
therewith. The drop-feed lubricator G supplies lubricating oil to all the moving
parts.
The mixing or carburating device M consists of two or more concentric tubes,
of which one p serves to admit combustible gas or petroleum spray while the other pl
serves to admit the requisite charge of air for admixture therewith. The said tubes
are surrounded by a discharge passage O through which the hot combustion gases

page_text: escape while imparting a portion of their heat to the gas and air admission tubes.
The piston rods V and V₁ are formed in one with sliding blocks X X', which work in
guides Y Y¹. These sliding blocks carry axes Z Z¹ on which are mounted rollers g g¹
which are engaged with the zig-zag groove h of the drum H fixed on the engine
shaft L, on which is also fixed a flywheel J.
Cooling water is made to circulate through the jackets N.
It will be evident that the rotary slide valve T may be replaced by any other
equivalent distributing device such as by a revolving cam actuating four discharge
valves, one on each cylinder which are then provided with self-acting admission
valves of known arrangement.
When the motor is arranged. with a two stroke cycle, the groove on drum H is
made with a single helical curve returning in itself, so that by the down stroke of
the pistons and rollers, the drum and shaft are made to perform one half of a
revolution, and by the up stroke they are made to perform the second half. The
shaft L is fixed to the slide T and consequently carries this round with it.
In the case of a motor with a four stroke cycle, as shewn on the drawing, the
curved groove is formed as shewn in the development at Figure 4, so as to impart
a semi-revolution to the drum by each double stroke of the pistons.
The motor engine operates as follows. The motor being arranged for a four-
stroke cycle I will assume at Figure 2 for the sake of clearness that the slide valve T
is fixed and that the cylinders revolve through the pistons marked 1, 2, 3, 4. In
the position 1 the piston is at the end of its up-stroke and about to admit an explosive
charge. In position 2 it is at end of down-stroke and about to compress the charge;
at 3 the compression is completed, and the charge is about to be ignited, and lastly,
at 4. the discharge of the combustion products takes place.
If it be desired to work with considerable expansion, it suffices to leave the
cylinder, during the compressing stroke, for a certain time in communication with
the admission port by forming this somewhat wider; a portion of the explosive
charge will then pass from the said cylinder into the next one, and the compression
of the charge will only commence after the valve port is entirely closed. Thus the
cylinder will only have a charge equivalent to 4/5ths, 3/4ths &c. of its capacity,
which charge will on ignition perform work by expansion to the full stroke.
A spring governor may be employed fixed on the engine shaft, and arranged in
any suitable known manner for preventing the ignition of a charge by the electrical
igniter when the motor exceeds the normal speed. When the ignition of the charges
is effected by a heated tube, the governor would be arranged so as to cut off the
supply of gas or petroleum by any known means.
The engine may be arranged either vertically as shewn, or horizontally. The
initial compression of the charges in the cylinder might be varied by arranging the
drum H so that it can be shifted longitudinally on the shaft for obtaining the more
or less rapid starting of the engine.
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. A motor engine worked by explosive fluid mixtures wherein any desired
number of engine-cylinders are grouped together so as to be worked by a single
device for admitting explosive charges thereto, the ignition of such charges being
also effected by a single igniting device, substantially as described.
2. In a motor engine of the kind referred to in the first claim, communicating
the motion of the engine pistons to the engine shaft which at the same time works
the distributing device, by fixing upon the shaft a drum having a peripheral groove
with which engage rollers carried by the piston rods, the said groove being so
formed that the drum and shaft have a rotary motion imparted to them by the
reciprocating motion of the pistons, substantially as described.

page_text: 3. A motor engine worked by explosive fluid mixture, combined and operating
as herein described with reference to the accompanying drawings.
Dated this 6th day of July 1897.
ABEL & IMRAY,
Agents for the Applicant.