An Improved Rotary Engine.
Year: 1899

page_text: Date of Application, 17th Jan., 1899-Accepted, 25th Feb., 1899
COMPLETE SPECIFICATION.
An Improved Rotary Engine.
We, CAREL BRUYNIS, of Hoogeweg, 9 & 11, Zeist, Holland, Engineer, and
JACOBUS VAN GINKEL, of Hoogeweg, 9 & 11, Zeist, Holland, Engineer, do hereby
declare the nature of this invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to an improved rotary engine and has for its object to
produce a simple and efficient form of motor.
In order that the invention may be the better understood drawings are appended
in which:-
Fig. 1 is a front elevational view with the cover removed.
Fig. 2 is a side elevational view.
A is the outer case which is cylindrical in form and which is provided upon one
side with a fixed cover cast integral with the case A and on the other side with
a loose cover A¹ secured to the flange upon the case by means of bolts or the like.
The case A is provided with an admission port d formed in the flanged boss D
cast upon the cylindrical case A, steam being admitted therethrough to the
cylinder, the port where the steam is admitted being indicated by the letter e.
An exhaust f is also provided, the opening from the cylinder being indicated by
letter 9 and located at the lower side of the cylinder at a point diametrically
somewhat in the rear of the admission port. Suitable standards or feet A2 A³ are
cast upon the case A by which the engine is secured to a suitable foundation.
Within the case A is a vane disc B eccentrically disposed with regard thereto
and supported upon a suitable shaft H for which bearings are provided upon the
sides of the case A. The width of the disc is the same as that of the inside of
the case A and it has formed across its periphery four recesses or channels c¹³ c
although these may be varied as desired, with which engage, as shown in Fig. 1
the transverse circular bars or bosses formed at the base of the curved
plates C1 C2 C3 C and which plates constitute the vanes against which the steam
upon its admission to the cylinder impinges. It will be seen on reference to the
drawings that the diameter and disposition of the disc B is such that when the
plate C is lying against the edge of the disc at the top of the cylinder there is
just room for the free rotation thereof, and the outward movement of the lower
vanes is checked by the same bearing against the inner surface of the
cylinder A.
The action of the engine is as follows:-
The steam enters the cylinder A at e and fills the space i, which is enclosed
between the round side of the cylinder, the bottom and cover of the same, the
inner side of the vane C which is forced against the inside of the cylinder, and
the outerside of vane C¹ which shuts off the steam between the top side of the disc
and the cylinder.
The vane C and with it the disc and the other three vanes, is now forced round
inside the cylinder, the former continually being pressed against the latter.

page_text: The next vane C¹ shuts off, after having passed the steam channel at e, the
steam supply to C₁ receiving thus the same steam pressure which the former one
had.
Vane C is now moved by expansion until it reaches the exhaust pipe at f;
when it has passed this the steam enclosed between the vanes C and Cescapes
and vane C is brought successively to the side of the disc B.
Alternately the successive vanes C receive the steam supply at e and open alter-
nately, also the exhaust pipe at g; in this way an uninterrupted movement of
the disc, and with it of the shaft H is obtained.
The number of vanes on the disc govern the duration of the steam supply to them
and by this the expansion of the steam is regulated. The exhaust steam can be
utilised if desired for a second rotary engine of larger dimensions, but of the same
construction, which may be coupled on to the axis H of the first engine.
In this way the steam is utilised as in all other compound steam engines, and
may be finally condensed to obtain the most useful effect.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
1. The improved rotary engine constructed and arranged substantially as herein
described and shown by the appended drawings.
2. In a rotary engine the method and means employed for securing the vanes C
to the disc B substantially as herein described and illustrated by the appended
drawings.
Dutad this 19th doy of Tan 1899