Improvements in and connected with Engines actuated by Mixed Products of Combustion and Steam.
Year: 1897

page_text: Improvements in and connected with Engines actuated by Mixed
Products of Combustion and Steam.
I, PERCY SINCLAIR PILCHER, of Artillery Mansions, Victoria Street, in the City
of Westminster and County of Middlesex, Gentleman, do hereby declare the nature
of this invention to be as follows:-
My invention consists in a new or improved motive power engine which is
operated by the gases resulting from steam and the combustion of oil, spirit, gas
or other inflammable material together with air or the like for supporting such
combustion.
I may conveniently construct an engine to operate according to my invention as
follows:-
"
As
I provide a boiler having a fireplace or furnace, inside of which is a coil, one end
of which latter communicates with the water space in the boiler and the level of
the water therein is kept as nearly as possible constantly full or at some other
desired level. Water is constantly pumped into or caused to enter the boiler and
as soon as it is above the level of the pipe leading to the coil it flows into same.
an example the furnace may be fired by means of oil or gaseous fuel and the
necessary air for supporting the combustion thereof is conveniently introduced by
means of an air compressor, the air being warmed or not as desired before it enters
the furnace. The air suitably passes through a kind of injector and induces the
supply of oil or vapour which is also conveniently admitted under pressure and the
burning gases serve to heat the water in the coil to form steam which passes out by
a jet into the furnace or into a pipe in communication therewith so as to induce a
current. The products of combustion and the steam therefore pass out of the
furnace by the aforesaid pipe (either directly or indirectly after being purified,
if this should be necessary) to the cylinder of the engine, which is provided with a
water jacket and valves for the inlet and exhaust of the working fluid. The piston
of the engine may directly operate the air compressor or the latter may be operated
indirectly. As a matter of convenience the water which serves to cool the engine
may be conducted to the boiler to be ultimately turned into steam. If desired the
engine and the compressor may be wholly enclosed by a water jacket the crank
shaft being provided with stuffing boxes to prevent leakage or only those parts are
enclosed which are most subjected to heat or require a certain amount of cooling
such as the compressor. If hot air is to be pumped into the furnace it is con-
veniently heated after leaving the compressor.
1005

page_text: Improvements in and connected with Engines actuated by Mixed
Products of Combustion and Steam.
I, PERCY SINCLAIR PILCHER, late of Artillery Mansions, Victoria Street, in the City
of Westminster, Gentleman, but now of Wilson & Pilcher Limited, of 17, Mount
Pleasant, Grays Inn Road, in the County of Middlesex, Managing Director, 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:-
My invention consists in a new or improved motive power engine, which is
operated by the gases resulting from steam and the.combustion of oil spirit gas
or other inflammable material, together with air or the like for supporting such
combustion.
I may conveniently construct an engine to operate according to my invention as
follows:-
As an
I provide a boiler having a fireplace or furnace inside of which is a coil, one end
of which latter communicates with the water space in the boiler and the level of the
water therein is kept as nearly as possible constantly full or at some other desired
level. Water is constantly pumped into or caused to enter the boiler and as soon
as it is above the level of the pipe leading to the coil it flows into same.
example the furnace may be fired by means of oil or gaseous fuel and the necessary
air for supporting the combustion thereof is conveniently introduced by means of
an air compressor, the air being warmed or not as desired before it enters the
furnace. The air suitably passes through a kind of injector and induces the supply
of oil or vapour which is also conveniently admitted under pressure and the burning
gases serve to heat the water in the coil to form steam which passes out by a jet into
the furnace or into a pipe in communication therewith. The products of com-
bustion and the steam therefore pass out of the furnace by the aforesaid pipe
(either directly or indirectly after being purified, if this should be necessary) to
the cylinder of the engine, which is provided with a water jacket and valves for the
inlet and exhaust of the working fluid. The piston of the engine may directly
operate the air compressor or the latter may be operated indirectly. As a matter
of convenience the water which serves to cool the engine may be conducted to the
boiler to be ultimately converted into steam.
If desired, the engine and the compressor may be wholly enclosed by a water
jacket, the crank shaft being provided with stuffing boxes to prevent leakage or
only those parts are enclosed which are most subjected to heat or require a certain
amount of cooling such as the compressor.
If hot air is to be pumped into the furnace it is conveniently heated after leaving
the compressor.
On the accompanying sheet of drawings I have shown in section one convenient
construction of engine and boiler to operate according to my invention. A is the
shell of the boiler which may be cylindrical as shown or of any other desirable form
provided with a furnace or combustion chamber B. Within the combustion
chamber B is placed a coil C which may be of any convenient form or size, or
extending, as shown upon the drawings, across and near the crown of the combus-
tion chamber. One end C¹ of the coil C communicates with the water space A¹
of the boiler, which is kept as nearly as possible constantly full of water or with
water at some other desired level. Water is constantly pumped into or caused to
enter the water space A¹ of the boiler by means of a pipe Aª and as soon as it is

page_text: above the level of the end C of the coil C it flows into same, or if desired only
steam may enter the end of the pipe C¹.
As an example the furnace or combustion chamber 13 may be fired by means of
oil or gaseous fuel which enters by a pipe or pipes E and nozzle or nozzles E¹ into
a mixing chamber F in the bottom of the furnace B the necessary air for support-
ing the combustion thereof being conveniently introduced by means of the air
compressor G or otherwise and the air being warmed or not as desired before it
enters the furnace. One convenient way of warming the air from the air com-
pressor before it enters the furnace is to enclose the shell of the boiler in a casing H
so as to leave an air space H' between the two, the air from the air compressor G
passing by a pipe G into the said air space whence it is conducted by a pipe or
coil H2 into the mixing chamber F.
kind
a
of
or
The air under pressure may suitably pass through
injector (not shewn) so as to induce a supply of oil or vapour
the oil or vapour may also be conveniently admitted under pressure
into the mixing chamber F. The burning gases serve to heat the water
in the boiler A and also to superheat or dry the steam or water in the coil C so that
steam passes out by a jet or nozzle C into the combustion chamber B or into a
pipe Bi in communication therewith and passes through the top of the boiler. If
desired the coil C may be dispensed with and the pipe C¹ may lead directly to the
nozzle C or direct into the pipe B, and the steam mixing with the products of
combustion becomes superheated or dried. The products of combustion and the
steam therefore pass out of the combustion chamber B by the pipe B1 (either
directly or indirectly after being purified, if this should be necessary) and the pipe B²
to the cylinder K of the engine which is provided with a water jacket L and
valves J J for the inlet and exhaust respectively of the working fluid. I may
also provide a perforated pipe or pipes 133 to permit some of the products of com-
bustion to penetrate the water space A¹ in the boiler and thereby increase the
evaporating power of the combustion chamber B. Besides this the effect will be
that some of the products of combustion are more or less scrubbed or purified.
The piston M of the engine may directly operate the air compressing piston N
or the latter may be operated indirectly. As a matter of convenience the water
enters by a pipe O through the water jacket P of the air compressing cylinder G
thence by a pipe Q to the water jacket L of the engine and may be conducted by
a pipe A2 to the water space A¹ of the boiler to be ultimately turned into steam.
S is an air inlet pipe to the air compressing cylinder and T is an exhaust pipe
from the engine.
It is evident that the water and the combustible oil or gas must be forced in
under pressure either by a pump or pumps operated by the engine or in any other
convenient manner.
Having now. particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
1. An engine actuated by mixed products of combustion and steam provided with
a boiler having an internal combustion chamber in which the products of com-
bustion are produced under pressure and connections from the combustion chamber
and from the boiler to the cylinder of the engine so that the steam is superheated
or dried before performing its work substantially as described and shewn.
2. An engine actuated by mixed products of combustion and steam provided
with a boiler having a combustion chamber in which the products of combustion
are produced under pressure, connections from the combustion chamber and from
the boiler to the cylinder of the engine and means for heating the air used to
support the combustion substantially as described and shewn.
3. An engine actuated by mixed products of combustion and steam having a
jacket surrounding its cylinder through which passes water for cooling purposes

page_text: and provided with a boiler fed by the warm water proceeding from the said water
Jacket, said boiler having a combustion chamber in which the products of combus-
tion are produced under pressure, connections from the combustion chamber and
from the boiler to the cylinder of the engine and means for heating the air used to
support combustion substantially as described and shown.
4. An engine actuated by mixed products of combustion and steam provided
with a boiler having a combustion chamber in which the products of combustion
are produced under pressure, a perforated pipe or pipes leading from the com-
bustion chamber to the boiler, connections from the combustion chamber and from
the boiler to the cylinder of the engine and means for heating the air used to
support the combustion substantially as described and shewn.
5. An engine actuated by mixed products of combustion and steam provided with
a boiler having a combustion chamber in which the products of combustion are
produced under pressure, a connection from the combustion chamber to the engine
and a coil passing from the boiler through the combustion chamber and thence
into the connection to the engine and means for heating the air used to support the
combustion substantially as described and shown.
6. The construction shown on the drawing.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.