An Apparatus for Acting upon or being Acted upon by Fluids so as to Obtain Motive Power or Generate Pressure in the Fluids.
Year: 1891

page_text: Date of Application, 3rd Mar., 1891
Complete Specification Left, 17th June, 1891-Accepted, 18th July, 1891
PROVISIONAL SPECIFICATION.
An Apparatus for Acting upon or being Acted upon by Fluids so as
to Obtain Motive Power or Generate Pressure in the Fluids.
WILLIAM EUGENE MARSILY Royal Indian Engineering College Coopers
Hill Staines Student of Engineering du hereby declare the nature of this invention
to be as follows:-
A machine consisting of two wheels providing passages for the flow of fluids
through them, and a suitable casing surrounding the wheels & providing inlet and
outlet passages for the fluid. The wheels may be placed above, surrounding or
beside one another. They are caused to revolve in such a way that the fluid
flows through the first wheel and is given a whirling velocity by this wheel and
after that the fluid is directed to the second wheel which transforms a part or the
whole of the kinetic energy of the fluid into pressure energy.
The passages of each wheel consist of a space generated by the revolution of a
plane area of any shape round the axis of the wheel, this space being subdivided
by means of vanes. The passages are similar to those provided in the wheels of
turbines, centrifugal pumps or fans, but they need not necessarily be of the same
shape.
The vanes of the wheel through which the fluid is caused to pass first are of a
form such that, by the revolution of this wheel, the fluid has given to it a gradually
increasing whirling velocity, in a manner similar to that of centrifugal pumps or
fans.
After its exit from the first wheel, the fluid is received by the second wheel,
which revolves in a direction opposite to the first wheel. The second wheel has
its vanes shaped in such a manner that, by its revolution in a direction opposite
to that of the first wheel, it gradually reduces the whirling velocity of the fluid,
either to nothing or to any desired speed. The effect of thus acting on the fluid
successively by two wheels revolving in directions opposite to one another is to
produce pressure in the fluid.
It is in the use of two wheels revolving in opposite directions and acting in
succession on the fluid, in the manner above described, that I claim the novelty of
my invention to lic.
W. E. MARSILY.
COMPLETE SPECIFICATION.
An Apparatus for Acting upon or being Acted upon by Fluids so as
to Obtain Motive Power or Generate Pressure in the Fluids.
I WILLIAM EUGENE MARSILY of 199 Chausée de Malines, Antwerp in the
Kingdom of Belgium late of the Royal Indian Engineering College, Coopers
Hill Staines, in the County of Middlesex, Student of Engineering, 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:
A machine constructed according to my invention, consists of two wheels having
passages for the flow of fluids through them and enclosed in a suitable casing
provided with inlet and outlet passages for the fluid the wheels being caused to
revolve in such a way that the fluid flowing through the passages in one of the
wheels is given a whirling velocity by this wheel and is then directed to the

page_text: other wheel which transforms a part of the whole of the kinetic energy of
the fluid into pressure energy. The wheels may be placed above surrounding or
beside one another.
The passages for the fluid in each wheel consist of a space generated by the
revolution of a plane area of any suitable shape round the axis of the wheel and
subdivided by means of vanes, the said passages being similar to those provided in
the wheels of turbines, centrifugal pumps, or fans, but they need not necessarily be
of the same shape. The vanes of the wheel through which the fluid is caused to
pass first, are of a form such, that by the revolution of this wheel the fluid has
given to it a gradually increasing whirling velocity in a manner similar to that of
centrifugal pumps or fans.
After its exit from the first wheel the fluid is received by the second wheel
which revolves in a direction opposite to the first wheel and has its vanes shaped in
such a manner that the whirling velocity of the fluid is thereby gradually reduced
to any desired extent. The effect of thus acting on the fluid successively by two
wheels revolving in directions opposite to one another is to produce pressure in the
fluid.
The machine may also be used as a motor the motive fluid in this case passing
through the wheels preferably in the reverse order and operating thereupon to
produce rotation of the shafts by which they are carried.
It is in the use of two wheels revolving in opposite directions and acting in
succession on the fluid in the manner above described, or capable of being acted
upon by the fluid in succession preferably in the reverse order and so act as a fluid
motor that constitutes the essential novelty of my invention.
And in order that my invention may be well understood I will describe with
reference to the accompanying drawings the best means with which I am acquainted
of carrying my invention into practical effect premising that I do not limit myself
to the precise details which I have shewn in the accompanying drawings which
illustrate an arrangement in which velocity and pressure are imparted by the
machine to fluid flowing through it.
Figure 1 is a plan of the apparatus, Figure 2 is a longitudal section thereof.
Figure 3 shews (drawn to a larger scale) the two wheels in elevation with the cover
plates in section and Figures 4 and 5 are face views of the first and second wheels
respectively. The casing containing the two wheels is shewn in the drawing as
being made in two parts A and B bolted together and to the bed plate D. The
paris A and B contain respectively the inlet passage a and the outlet passage b for
the fluid.
Bolted to the bed plate D is a standard C carrying a stud Pon which is
mounted a bevel wheel O and a bearing for a shaft Eion which is mounted a
wheel N gearing with the said wheel O.
On the shaft E is keyed the wheel G to which the fluid is first admitted and
also a pulley R by means of which the shaft may be rotated from any suitable
motor.
Mounted so as to turn freely on the shaft E is the wheel H and also a bevel
wheel M which latter gears with the bevel wheel O and is connected to the wheel'H
by a hollow shaft or sleeve F.
The hollow shaft F rotates in a bush L in the part B of the casing and the
inner end of the solid shaft 'E has a bearing in a bush K in the part A of the
casing.
The bushes K and L and the bearing Q take the thrust of the bevel wheels M
and N and shaft E.
The wheels M. N. O which may be either friction gearing or toothed gearing, as
shewn, gives to the hollow shaft F rotation in a direction opposite to that of the
shaft E.
The peripheries of the vanes on the wheels Gand Hare covered by rings.g.and.h
respectively which work sufficiently fluid tight in the casing A. B.to prevent
leakage.

page_text: The vanes of the first wheel G are parts of surfaces of cones having their
apices in o; in the example shewn (see Figure 3) the angle between their axes and
the axis X, Y of the cone whose trace is a o. a' being approximately 90°.
The vanes of the second wheel H are parts of surfaces of cones also having
their apices at o and meeting the plane whose trace is c c at an angle to the right
of the vertical nearly equal to 15° in the example shewn.
The angle of the apices of the cones from which the surfaces of the vanes of
wheel G are obtained is about 110° and the angle of the apices of the cones from
which the vanes of wheel H are obtained is about 170° and the portions of the
cone surfaces utilized in the wheels G and H are those intercepted by the plane
whose trace is c. c and the cone whose trace is a. v. a¹ in the wheel G and by the
same plane and a cone whose trace is m o. m in wheel H. The values of the
various angles and the other dimensions hereinbefore stated may be varied in
accordance with the work to be done upon or by the machine. The passage area
around the bosses carrying the vanes is the same in both wheels.
The form of the cover plate in section should not be exactly circular as shewn
in Figure 3, but should be as shewn in Figure 2. This form is obtained in the
following manner :-p q is part of a circle struck from the centre o such that is
midway between randt. Then ys = q is taken equal to 0.7. p. r and a circle is
drawn through and shaving its centre in the line o. 7 similarly for t. v.
U
The fluid is admitted by the supply passage a to the chamber A and enters the
first wheel G in the direction shewn by the arrow in Figure 3. This wheel is
rotating in the direction shewn by the arrow in Figure 4 takes up the fluid and
gives it a whirling velocity in the direction of its rotation. The fluid moving in
this direction with great velocity meets the second wheel H which moving in the
opposite direction the vanes of this wheel gradually reduce the velocity of the
fluid and give to it the direction it had before entering the first wheel and the
result is an increase of pressure in the fluid.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed 1 declare that what I
claim is.
First The combination of two wheels enclosed in a casing and capable of being
rotated in opposite directions to one another and of acting on the fluid so that the
first wheel gives a gradually increasing velocity to the fluid and the second wheel
reduces this velocity for the purpose of producing pressure substantially as
hereinbefore explained.
Second In a motor operated by fluid pressure the combination of two wheels
constructed substantially as hereinbefore described enclosed in a casing and
capable of rotating in opposite directions when acted upon by fluid under
pressure.
Third The general construction and combination of parts constituting a
velocity and pressure generator for fluids and capable of being used also as a
motor, substantially as hereinbefore described and illustrated in the accompanying
drawings.
Dated the 16th day of June 1801
W. E. MARSILY.