NEW OR IMPROVED MEANS FOR REVIVING THE SPENT STEAM IN STEAM-ENGINES, AND RE-APPLYING THE SAME AS MOTIVE-POWER
Year: 1880

page_text: LETTERS PATENT to Henri Adrien Bonneville, of the British and Foreign
Patent Offices, 18, Rue de la Chaussée d'Antin, Paris, France, and 5, Piccadilly,
in the County of Middlesex, Patent Agent, for an Invention of "NEW OR
IMPROVED MEANS FOR REVIVING THE SPENT STEAM IN STEAM-ENGINES,
AND RE-APPLYING THE SAME AS MOTIVE-POWER." A communication from
Jacques Belou, of No. 28, Rue de Chateaudun, Paris, Civil Engineer.
PROVISIONAL SPECIFICATION. left by the said Henri Adrien Bonneville
at the Office of the Commissioners of Patents on the 30th August 1880.
HENRI ADRIEN BONNEVILLE, of the British and Foreign Patent Offices, 18, Rue
de la Chaussée d'Antin, Paris, France, and 5, Piccadilly, in the County of Middlesex,
Patent Agent.
"NEW OR IMPROVED MEANS FOR REVIVING THE SPENT STEAM
IN STEAM ENGINES, AND REAPPLYING THE SAME AS MOTIVE POWER." A com-
munication from Jacques Belou, of 28, Rue de Chateaudun, Paris, Civil Engineer.
The Invention relates to almost indefinitely using as motive power the spent
steam of engines, and consists in causing the same to pass successively through a
greater or smaller number of injectors between the engine boiler and the driving
cylindre, acted upon separately by currents of steam under pressure, overheated or
not; and acting upon one another, joined head and tail in such a manner that the
first current having sucked the spent steam, and having communicated to it a first
degree of pressure, the second current in its turn sucks the product of the first, and
imparts to it a second degree of pressure, and thus one after the other for the
injectors following, until the product resulting from the mixture of the sucking
steam with the steam sucked may have attained a sufficient pressure to be used as
motive power by the engine.
The final product of these successive impulses (entrainements) is received in a
chamber, whence part passes through the engine as motive power and part through
the injectors of the first degree to act as sucking-steam; the surplus is sucked by a
pump and returned to the boiler, or is condensed in the chamber to pass from
thence into the boiler by its own weight, if in this last case care has been taken to

page_text: place the chamber above the level of the boiler and to connect the two vessels by a
plunging tube, so that a natural circulation between the two liquids is established
by the only difference of the pressure, and the temperature between the two vessels
and the last injector, that is, the one that is to furnish the highest degree of
pressure, and is alone fed directly by the steam from the boiler.
Thus according to the Invention the spent steam is revived and regenerated
successively and progressively, partly through contact with the steam resulting
from the preceding impulses, partly through contact with a current of new steam
coming directly from the boiler, and the product resulting from the mixture of the
sucking steam and the steam sucked is received into a chamber apart from the
boiler, from whence to pass and to be distributed as motive power, while the surplus
is returned to the boiler, either in the state of steam or of condensed water, and
thus on indefinitely so as to create a continual circuit from the boiler to the engine,
and from this latter to the boiler in passing successively through the different
states described, and without any other expense of heat than that which is necessary
to repair the loss of caloric lost in the work, and that resulting from the exterior
radiations of the parts of the engine.
The chamber receiving the steam from the injectors is at once justly used as
a pressure regulator to attenuate the effects of the intermittent inductions of steam
into the engine, and also because, when it is placed above the level of the boiler,
the superfluous steam from the injectors is allowed to pass into the latter, and the
differential pressure between the sucking steam and the steam sucked required for
the working of the injectors is preserved.
At last, to regulate the sucking of the injectors, the spent steam of the engine
ought to be received into a similar chamber from whence to pass to the injectors.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, and
of an Order of the Lord Chancellor, filed by the said Henri Adrien Bonneville
in the Great Seal Patent Office on the 8th March 1881.
HENRI ADRIEN BONNEVILLE, of the British and Foreign Patent Offices, 18, Rue de
la Chaussée d'Antin, Paris, France, and 90, Cannon Street, in the City of London,
Patent Agent. "NEW OR IMPROVED MEANS FOR REVIVING THE SPENT STEAM
IN STEAM-ENGINES, AND RE-APPLYING THE SAME AS MOTIVE POWER." A com-
munication by Jacques Belou, of 28, Rue de Chateaudun, Paris, Civil Engineer.
The Invention relates to almost indefinitely using as motive power the spent steam
of engines, and consists in causing the same to pass successively through a greater
or smaller number of injectors between the engine boiler and the driving cylinder,
acted upon separately by currents of steam under pressure, overheated or not, and
acting upon one another, joined head and tail in such a manner that the first
current having sucked the spent steam, and having communicated to it a first
degree of pressure, the second current in its turn sucks the product of the first, and
imparts to it a second degree of pressure, and thus one after the other for the
injectors following, until the product resulting from the mixture of the sucking
steam with the sucked steam may have attained a sufficient pressure to be used as
motive power by the engine.
The final product of these successive impulses (entrainements) is received in a
chamber, whence part passes through the engine as motive power and part through
the injectors of the first degree to act as sucking steam; the surplus is sucked by a
pump, and is returned into the boiler, or is condensed in the chamber to pass from
thence into the boiler by its own weight, if in this last case care has been taken to
place the chamber above the level of the boiler, and to connect the two vessels by
a plunging tube, so that a natural circulation between the two liquids is established
by the only difference of the pressure and the temperature between the two vessels
and the last injector, that is, the one that is to furnish the highest degree of
pressure, and is alone fed directly by the steam from the boiler.
Thus according to the Invention the spent steam revived and regenerated
successively and progressively, partly through contact with the steam resulting
from the preceding impulses, partly through contact with a new steam current
coming directly from the boiler, and the product resulting from the mixture of the
sucking steam and the steam sucked is received into a chamber apart from the
boiler, from whence to pass and to be distributed as motive power, while the
surplus is returned to the boiler, either in the state of steam or of condensed water,
and thus on indefinitely so as to create a continual circuit from the boiler to the
engine, and from this latter to the boiler, in passing successively through the
different states described, and without any other expense of heat than that which
is necessary to repair the loss of caloric lost in the work, and that resulting from
the exterior radiations of the parts of the engine.
The chamber receiving the steam from the injectors, at once justly used as a
pressure regulator to attenuate the effects of the intermittent inductions of steam
into the engine, and also because, when it is placed above the level of the boiler,
the surplus steam from the injectors is allowed to pass into the latter, and the
differential pressure between the sucking steam and steam sucked required for the
working of the injectors is preserved.
At last to regulate the sucking of the injectors the spent steam of the engine
ought to be received into a similar chamber from whence to pass to the injectors.
As to the construction of the different parts of this system, and especially in
what concerns the injectors, we shall confine ourselves to the general figured

page_text: indications of the accompanying Drawings, in remarking that the greater part of
known injectors are applicable to the case before us, and that it will be sufficient
to appropriate them to their new function conformably to the rules of practice, be
they employed singly or severally, simple or compound, and that they be placed
side by side upon or under each other, or one after the other, provided that their
action functions as described, and that they be provided with necessary accessories,
such as cocks or valves serving to regulate their functions.
The Drawing hereunto annexed represents Fig. 1 a view of the general disposition
of the system.
A, A, is an ordinary steam generator; B, the ordinary steam cylinder; C, C, C, C,
a series of injectors of any kind whatever, the ends of which are connected with
each other and arranged in some manner whatever, the one below receiving the
spent steam of the engine, and sucked from a chamber whatever D between the
engine cylinder and the said injector; E, E, E, E, are connecting pipes between
the chamber and the first injector, passing thence to the next, and thus on up to
the upper chamber F, with or without a branch pipe towards the driving cylinder B
and the first injectors; G, a pipe, through which all the steam of the injectors
passes to the chamber F or only the overplus of the same, when the other part has
passed directly to the cylinder and injectors without passing through the chamber;
H, a pipe conducting the steam from the boiler directly into the last injector; I, a
plunging pipe connecting the boiler with the upper chamber, and by means of
which the difference of pressure between the two recipients is shown, at the same
time that a natural circulation between the liquids from the one recipient to the
other is established; J, a feeding pipe bringing water to the upper chamber to pass
from thence to the boiler; K, K, cocks; L, L, stop valves.
Fig. 2 and 3 represent two injectors, of which one is characterized by the mode
of gathering together a series of simple injectors acted upon collectively by the
same steam current, and allowing to obtain great effects, the other by the con-
secutiveness of a series of pipe openings arranged consecutively one after the other
in the same casing, and also presenting a great number of points of contact to the
action of the current.
Lastly, Fig. 4 represents a steam pump intended for forcing the overplus of
steam resulting from the sucking of the injectors back to the boiler, in case this
way should be preferred to the employment of a reservoir of a different level.
Having thus described the nature of the Invention, and the manner of carrying
it into effect, I would have it understood that I do not confine myself to the
precise details above enumerated, as these may obviously be modified without
departing from the principle of the Invention, according to the special construction
and intended applications of the engines in which they are adopted, but what I
claim is the reviving of spent steam in steam engines, and the reapplying the same
as motive power by the combination of a certain number of injectors between the
steam boiler and the driving cylinder of steam engines acted upon separately by
currents of steam under pressure, and acting upon one another, and constructed as
above described and represented in the accompanying Drawings.
"
In witness whereof, I, the said Henri Adrien Bonneville, have hereunto set
my hand and seal, this Eighth day of March, in the year of our Lord
One thousand eight hundred and eighty-one.
H. BONNEVILLE (L.S.)