An Improved Rotary Motor applicable as a Pump, Blower, or Meter.
Year: 1891

page_text: Date of Application, 30th Sept., 1891.
Complete Specification Left, 28th June, 1892-Accepted, 3rd Sept., 1892
PROVISIONAL SPECIFICATION.
An Improved Rotary Motor applicable as a Pump, Blower, or
Meter.
LJUBOMIR KLERITJ of 11 Milanstrasse Belgrade Servia Professor do hereby
declare the nature of this invention to be as follows:-
The object of this invention is a new or improved rotary engine in which the
driving power whether steam, water, gas, compressed air or other expanding gas or
vapour acts upon two or more valves or preferably upon two valves arranged
diametrically opposite one another and arranged so as to be capable of turning in
the circular groove of a cylinder which is fitted in the centre of a shell or casing
from the inside of which cheeks or projections extend within the circular groove
of the cylinder, being fixed to the said shell or casing diametrically opposite one
another and being designed to replace the cover of the cylinders of ordinary
engines, so as to afford a bearing for the motive power. These cheeks or bearings
are furnished with inlet and outlet channels for the steam, air, gas or other motive
fluid.
The peculiar method of distributing the motive power forms the characteristic
feature of this rotary double acting engine, whereby its axis is greatly relieved.
By reversing the motion in the said engine, it can be used as a pump, as a
water meter or as a blowing engine. The arrangement of special channels at
the bottom of the circular groove of the cylinder and near the valves allows of the.
admission of steam being regulated, and of the engine working expansively.
On the inner surface of the shell before the cheeks or bearings aforesaid are
formed channels or recesses, which relieve the valves when the latter are turned
over (in the cycle) as they reach the cheeks or bearings in order to be able to
slip through below the latter. By combining two such engines, they can be con-
verted into coupled or twin engines.
More than two engines could also be combined provided they had the same
angular speed.
In a fixed shell secured to any suitable frame by means of castings or otherwise
and having a cylindrical inner surface is arranged a suitable motor cylinder rotating
upon a main shaft which is composed of three discs connected together by bolts,
the two outer discs having a larger diameter than the central disc so as to form
a circular channel upon the periphery of the cylinder in which channel are arranged
four motor valves capable of turning in the two outer discs upon suitable pins or
pivots and provided on both sides with small tightly closing discs arranged upon
the said pins or pivots.
The end surfaces of the valves furnished with tightening strips drop in their
open position in the outer periphery of the motor cylinder and come into contact
with the inner surface of the shell.
In their closed position these valves enter suitable recesses formed in the motor
cylinder in such a manner that the convex sides of the valves being turned off
accordingly to the half diameter of the bearings drop accurately in the surface of the
latter.
To operate the said motor cylinder so that the valve may be set in motion and
the cylinder may be caused to rotate, the circular groove of the latter is divided
into two equal parts and by two similar cheeks or bearings which bear tightly
upon the lateral and bottom surfaces of the said grooves and are fixed to the shell
by means of double dovetailed pieces or wedges arranged at diametrically opposite
parts and acting in a similar manner to the cylinder covers of ordinary steam
engines. These bearings or cheeks enable the engine to be self acting. The

page_text: upper and lower part of the shell are provided with the aid of special castings
with two contiguous pairs of chambers which are tightly closed by plates carrying
two tubular stays an inlet and an outlet communicating with two of the chambers.
Each of the four chambers is furnished moreover with lateral tubular stays
connected together by pipes in such a manner that the first two chambers com-
municate with the inlet and the last two with the outlet.
Moreover channels lead from the same to the inside of the shell through the
cheeks or bearings aforesaid.
Two of these four channels that is to say the outlet channels communicate with
the circular grooves aforesaid and the convex side of the motor valves, the other
two that is to say the inlet channels communicate only temporarily with the same
circular grooves aforesaid and the concave side of the motor valves.
To allow steam, compressed air, gas and the like to work expansively the motor
cylinder is furnished on the bottom of the circular groove with suitable channels or
recesses separated by small projections from the recesses in which the motor valves
rest. The duration of the period of admission of steam, gas, etc. depends upon the
length of these channels, and hence this expansion can be regulated by making
these channels shorter or longer so that they may be considered as a valve gear,
the bottom of the circular groove of the motor cylinder provided with these
channels taking the place of the slide valve of engines worked by means of a
piston.
Dated this 20th day of Santambor 1901
RAYNER & CASSELL,
37, Chancery Lane, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Rotary Motor applicable as a Pump, Blower, or
Meter.
I, LJUBOMIR KLERITJ, of Milanstrasse No. 11, Belgrad, Servia, Professor, 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 an improved rotary engine which I shall describe
referring to the accompanying drawings.
Fig. 1 is a front elevation of a motor according to my invention.
Fig. 2 is a section taken on the line of Fig. 3 which is a section on the
lines y y of Figs. 1 and 2, the pipes being shewn in elevation.
Fig. 4 is a section on the line = Fig. 2.
Fig. 5 is a side view of two engines of different sizes combined.
Fig. 6 represents the smaller engine of Fig. 5 in section, the larger in elevation.
Fig. 7 is a section illustrating the motor used as a pump.
Figs. 8 and 9 illustrate the packing in section and perspective respectively.
Fig. 10 is a detail section shewing a modification.
с
In a cylindrical shell a fixed by flanges a' or otherwise, a motor cylinder c is
mounted upon a main shaft b this cylinder consisting of three discs c³ ³ ³ con-
nected together by bolts d.
The two external discs c¹ c³ (Fig. 3) are larger in diameter than the central
disc so as to form a cylindrical channel or groove ef' upon the periphery of the
cylinder in which chanuel are arranged four motor valves 1, 2, 3, 4, (of which
there might be a greater number) pivotted in the two outer discs c c by pins or
studs 1'2 3' 4' and having on both sides tight closing discs g' g³ 9³ g' fixed upon
the said pins or studs as shewn in Fig, 4.
The valves, having end packings 12 22 33 42, in one position enter recesses in the
periphery of the cylinder and in another position bear against the inner surface
of the shell a

page_text: When in the former position the outer faces of the valves form part of the
cylindrical periphery of c as shewn in respect of the valves 2 and 4 in Fig. 2.
The circular groove of the cylinder is divided into two equal parts e and ƒ by
two similar cheeks or abutments k¹ and which fit closely to the sides and bottom
of the groove and are fixed to the shell a by dovetails i i.
In the upper and lower parts of the shell a are two contiguous pairs of
chambers I, II, and III IV covered by plates V and VI the plate V having an
inlet. VII to chamber II and the plate VI having an outlet VIII from the
chamber III.
Each of the four chambers has lateral passages connected by pipes, the
chambers II and IV being connected by a pipe IX and the chambers I and III
by a pipe X.
Thus II and IV communicate with the inlet VII and I and II with the
outlet VIII.
Ports m n o p lead from the chambers to the inside of the shell a through the
checks or abutments k¹ k³.
In the bottom of the circular groove there are recesses ¹³separated_by
narrow walls from the recesses h which receive the motor valves. The
duration of the period of admission of the working fluid depends upon the length
of these recesses, and thence consequently its expansion can be regulated by making
these recesses shorter or longer.
Fig. 2 represents the engine in a position in which the spaces and fare separated
by narrow walls from the admission channels n and p respectively.
The concave surfaces of the valves 1 and 3 being pressed by working fluid
previously admitted causes rotation of the cylinder.
When the upper edges of the raised valves 1 and 3 reach recesses r¹³ formed
on the inner surface of the shell a the fluid passes to the ports mo and thence to
the
open air or to supply a similar motor at lower pressure.
When the discharge begins, the pressure on each side of the valves 1 and 3
becomes at once equalised so that these valves 1 and 3 are easily laid down during
the further rotation of the cylinder by the bodies ¹ and ³ after passing which
they operate on the other side.
The valves of which 2 and 4 shewn in their laid down position, are raised by
springs not shewn; and when the walls and have passed the bodies k¹ k², fresh
working fluid admitted by the recesses and it into the spaces e fin front of the
valves 2 and 4 after they have risen effects continued rotation of the cylinder c.
The supply is continuous while the recesses are passing the ports n and p.
When have passed beyond n p, the continued rotation is effected by
expansion, the degree of which thus depends upon the length of the recesses.
In order to provide for tightening, the valves 1 2 3 4 in the walls of the discs c¹³
are made with segment like recesses q¹ g² 9ª q* into which the side edges 13 of the
valves can enter. Those recesses are situated under the covering discs g¹g³.g³ y¹
which are also set in recesses of the discs c¹ c³ and serve only to cover the
recesses 9999. The end edges of the valves are packed preferably by metal
strips 12° 3° 4' which are fitted in recesses in the edges of the valves and are
pressed outwards by springs. In order to facilitate opening of the valves, I provide
(see Fig. 10) channels v leading from the recesses to beneath the valves so that
the pressure causes the valves to begin to rise before the walls 14 have passed
the bodies kk³.
In order to employ the motor as a compound engine I combine two motors of
different sizes, preferably side by side on a common axis as represented in Figs. 5
and 6. The smaller motor works under full pressure without expansion so that
the recesses are omitted and the parts n and p made to communicate
directly with the circular spaces e and f.
The mode of working is essentially the same as in the simple motor described
above, the exhaust from I and III of the small motor passing to II and IV of the
larger through pipes X1 and XII to supply it with working fluid.

page_text: ABEL & IMRAY,
Agents for the Applicant.