Improvements in Rotary Motors.
Year: 1898

page_text: Improvements in Rotary Motors.
I, XAVIER CHARLES LOUIS GEORGES VANDEL, of Pontarlier, in the Republic of
France, Engineer, do hereby declare the nature of this invention to be as fol-
lows:-
This invention relates to a novel rotary motor for petroleum or other hydro-
carbons.
The motor consists essentially of a movable wheel or disc provided at its
periphery with a suitable number of recesses or cells.
In the example hereindescribed the disc has six recesses, but as hereinafter
explained this number may be varied.
The disc which is rigidly fixed upon a shaft forming the driving shaft, is
capable of rotating between two fixed plates forming a circular envelope closed
at its periphery. This envelope communicates with a chamber in which is
arranged a compression piston capable of displacement. In the chamber is also
arranged a valve enabling the introduction into the said chamber of the gaseous
mixture, at the desired moment. This valve may be actuated by means of any
appropriate mechanism, preferably by means of a disc provided with bosses or
projections which act upon the lower portion of a cranked lever which is capable
of oscillating around an axis. The upper portion of this cranked lever is in
contact with the rod of the valve which is constantly maintained upon its seat
by the action of a spring.
The compression piston is connected to an oscillating connecting rod the
extremity of which is provided with a roller which is enclosed within the groove
of a cam fixed upon the driving shaft. This arrangement for the actuation of
the compression piston may, however, equally well be replaced by means of any
other suitable mechanism.
Within the chamber is arranged a suitable ignition device.
The operation of the motor is as follows:-
Owing to the rotation of the driving shaft, one of the projections upon the
disc bears upon the lower portion of the cranked lever, the upper portion of which
then presses upon the rod of the valve, thus allowing the admission of a certain
portion of the gaseous mixture coming from the carburetter.
At this moment, and under the action of the grooved disc or cam, the piston
enters the chamber producing a compression of the gaseous mixture. As soon
as the compression has been effected, the gaseous mixture is exploded by the
igniting device. The various parts of the motor, are regulated in such a manner
that the explosion takes place exactly at the moment at which one of the recesses
of the disc is in communication with the chamber. This recess therefore receives
the force of the explosion, and owing to the form of the said recess, the disc is
displaced. As the same phenomena are reproduced in the same order, there will
be imparted to the disc a continuous movement of rotation, thus causing the shaft
to rotate, which shaft itself transmits its movement either to the driving axle, if

page_text: the motor is applied to a motor vehicle, or to the shaft of a machine tool, if it
is providing power for a workshop.
$
As above stated, the disc is provided with three projections only, whilst the
wheel or disc is provided with six recesses; three explosions only will therefore take
place for each revolution of the wheel or disc, and consequently every other recess
will not receive the force of an explosion. The recesses which are not utilised
for an explosion serve to conduct to the, exhaust, the burned gases remaining in
the chamber as a result of the preceding explosion. This chamber may also
communicate with the exhaust by means of a valve actuated by an appropriate
device.
Dated this 6th day of October 1808
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.
I, XAVIER CHARLES LOUIS GEORGES VANDEL, of Pontarlier, in the Republic of
France, Engineer, 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 a novel rotary motor for petroleum or other hydro-
carbons.
In order that my invention may be readily and clearly understood I have repre-
sented the same in the accompanying drawings in which:-
Figure 1 is a side view of the motor partly in section
Figure 2 is a cross section of the same and
Figure 3 is a front view of the disc and its bosses or projections.
The motor consists essentially of a movable wheel or disc A provided at its
periphery with a suitable number of recesses or cells a.
In the example represented in the drawing the disc has six recesses, but as
hereinafter explained this number may be varied.
The disc A which is rigidly fixed upon a shaft B forming the driving shaft, is
capable of rotating between two fixed plates C C₁ forming a circular envelope
closed at its periphery. This envelope communicates with a chamber D in which
is arranged a compression piston capable of displacement. At E is arranged
a valve enabling the introduction into the said chamber 1 of the gaseous mixture
at the desired moment. This valve may be actuated by means of any appropriate
mechanism, preferably by means of a disc F provided with bosses or projections f
which act upon the lower portion of a cranked lever G which is capable of oscillat-
ing around an axis g. The upper portion of this cranked lever is in contact
with the rode of the valve E which is constantly maintained upon its seat by
the action of a spring el.
an oscillating connecting rod H the
which is enclosed within the groove
This arrangement for the actuation
The compression piston d is connected to
extremity of which is provided with a roller
I of a cam I fixed upon the driving shaft B.
of the compression piston d, may, however, equally well be replaced by means of
any other suitable mechanism.
At K within the chamber D is arranged a suitable ignition device.
The operation of the motor is as follows:
Owing to the rotation of the driving shaft B, one of the projections upon the

page_text: disc F bears upon the lower portion of the cranked lever G, the upper portion
of which then presses upon the rod of the valve E, thus allowing the admission
of a certain portion of the gaseous mixture coming from the carburetter.
At this moment, and under the action of the grooved disc or cam I', the piston d
enters the chamber D producing a compression of the gaseous mixture.
As soon
as the compression has been effected, the gaseous mixture is exploded by the
igniting device K. The various parts of the motor, are regulated in such a
manner that the explosion takes place exactly at the moment at which one of
the recesses a of the disc A is in communication with the chamber D) in the manner
indicated in Figure 1. This recess therefore receives the force of the explosion,
and owing to the form of the said recess, the disc is displaced in the direction
of the arrow Figure 1. As the same phenomena are reproduced in the same
order, there will be imparted to the disc A a continuous movement of rotation.
thus causing the shaft B to rotate, which shaft itself transmits its movement
either to the driving axle, if the motor is applied to a motor vehicle, or to a
shaft of a machine tool, if it is providing power for a workshop.
As above stated, the disc F is provided with three projections only, whilst the
wheel or disc A is provided with six recesses; three explosions only will therefore
take place for each revolution of the wheel or dise A and consequently every
other recess will not receive the force of an explosion. The recesses which are
not utilised for an explosion serve to conduct to the exhaust L, the burned gases
remaining in the chamber Das a result of the preceding explosion. This
chamber D may also communicate with the exhaust by means of a valve actuated
by an appropriate device.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is :-
1. A rotary motor for petroleum or other hydrocarbons, especially characterized
by a recessed disc, the recesses in which are placed successively owing to the
rotation of the disc, in communication with a chamber in which the explosions
of the gaseous mixture take place; the force of the said explosions thus making
itself felt in the recesses of the disc to which is imparted a continuous movement
of rotation.
2. A rotary motor for petroleum or other hydrocarbons, especially characterized
by an explosion chamber within which are arranged; on the one hand, a valve
actuated by means of a suitable mechanism and placing the said chamber in com-
munication with the carburetter, and, on the other hand, a compression piston
displaced by the action of suitable mechanism with the object of producing in the
chamber itself the compression of the gaseous mixture which is then ignited by
means of any appropriate ignition device.
Dated this 21st day of June 1899
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.