An Improved Device for Producing Circulation of Water Around the Cylinders of Gas-engines, Air-compressors, and the like.
Year: 1898

page_text: Date of Application, 13th Oct., 1898-Accepted, 19th Nov., 1898
[Communicated from abroad by the Firm of MIARI GIUSTI, of Padua, in the
Kingdom of Italy.]
An Improved Device for Producing Circulation of Water Around the
Cylinders of Gas-engines, Air-compressors, and the like.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, 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 an improved device, by which the reservoir contain-
ing the water which serves for circulating around the cylinders of gas engines,
air compressors and the like, for the purpose of cooling the same, admits of being
placed below the cylinder, without the necessity of employing a pump for pro-
ducing such circulation, which in devices of the ordinary kind, where the water
is placed above, takes place by reason of the difference of density between the cold
water and the heated water.
This improved device is represented in the accompanying drawing, as applied
to a gas engine.
A is the working cylinder; a the jacket, in which the water is required to
circulate; B the reservoir containing the circulating water, this reservoir being
placed below and communicating with the jacket a by means of tubes and s,
terminating respectively in the cover and in the bottom of the said reservoir B.
The upper end of the tube t terminates in a small chest D open at f f and com-
municating with the jacket a by means of a conduit U.
vis the exhaust pipe for the products of combustion. To this exhaust pipe
is connected the pipe uza which terminates near the cover of a tightly closed
box C. The upper orifice of the pipe uz is provided with an ordinary valve or
with a clack valve adapted to open outwards. To the bottom of this box or chest C
is connected one end of a small tube y, which has its other end inserted in the
tube s, and is turned down toward the base, the said tube terminating in a nozzle e
of small diameter.
The water which is introduced into the chest D, fills the reservoir B, the
tubes sand and the jacket a. If under these conditions the products resulting
from the combustion taking place in the cylinder, escapes direct to the outside,
the water contained in jacket a and in the chest I will become heated to boiling
temperature without heating the water contained in the reservoir B and conse-
quently no circulation whatever will take place.
A portion of the exhaust from the motor, however, passes through the tube uza
into the chest C at a pressure higher than that of the atmosphere and lifts the
clack valve, which latter, as it re-descends upon its seat, prevents the exhaust
products from flowing back when the driving piston has reached the end of its
exhaust stroke.
The gases contained in the box C then escape through the pipe y and the

page_text: nozzle e.
A quantity of gas bubbles mixes with the water contained in the
tube s, in jacket and in the conduit U and causes a stirring effect in the chest D.
It is evident, that under these circumstances a circulation of water is set up
below the horizontal line e e¹, which said circulation causes a portion of the cold
water contained in the reservoir Bto rise through the tube s, which cold water
serves to replace part of the hot water contained, in the chest D and jacket «,
which descends through the tube t.
The small box or chest C acts as an air reservoir for producing a uniform flow
of the products of combustion at e, which products pass in an intermittent manner
into the box C. If the pressure in the box C should not be sufficient for effecting
the flow of the gases at the nozzle e, it will only be necessary, to reduce the cross
section of the exhaust pipe at a suitable point q.
For applying the device to a compressor instead of to a gas engine, it would
only be necessary, to omit the tube za and the chest C and to establish com-
munication between y and the air conduit or gas pressure conduit. A cock in-
serted in the communicating conduit would permit of regulating the flow at the
nozzle e.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, as communicated
to me by my foreign correspondents, I declare that what I claim is;-
-
A device, by which, without the aid of a pump, a circulation of water can be
produced between the jacket (a) of the cylinder (A) of a gas engine or compressor
and a water reservoir (B) arranged below and connected to the jacket by means
of a double pipe conduit (s, t), the characteristic feature being, that the difference
of density required for effecting the circulation, is obtained by injecting into
one of the liquid columns (s) a portion of the products of combustion, com-
pressed air or gas.
Dated this 18th day of October 1898.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.