Improvements in Hydro Carbon Engines.
Year: 1892

page_text: Date of Application, 29th Feb., 1892
Complete Specification Left, 28th Dec., 1892-Accepted, 28th Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in Hydro Carbon Engines.
HERBERT AKROYD STUART, Bletchley Iron Works, Bletchley, in the County
of Buckinghamshire, Mechanical Engineer and CHARLES RICHARD BINNEY,
5 Hackney Road in the County of Middlesex Consulting Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to improved means for controlling or regulating the tem-
perature of a vaporiser such as described in the Letters Patent granted to Herbert
Akroyd Stuart and Charles Richard Binney and numbered respectively 7146 in
the year 1890 and 15994 in the
year 1890.
We have found in practice that when an engine is running fully loaded for a
considerable time the vaporiser sometimes becomes overheated and the object of
this invention is to prevent such overheating.
In carrying this invention into practice a vaporiser is constructed in the same
general form and for the same purpose as the ones described in the Patents granted
to us as above referred to, but instead of its cooling by normal atmospheric
radiation, we arrange a water or liquid chamber or jacket preferably around the
contracted or necked portion of the said vaporiser and according to the duty the
engine is doing more or less water is pumped or forced through the said jacket or
chamber. This is effected by a pump or its equivalent preferably actuated from
the same motion as the oil supply pump so that when the engine receives a supply
of oil and consequently takes an explosion a proportioned quantity of water is
caused to enter the jacket and this cool water expelling a quantity of heated water
into a suitable receptacle prevents the vaporiser from overheating. This arrange-
ment is adapted when the engine or oil pump is governed by what is known as the
"hit and miss "
governor motion. In some instances we arrange an ordinary
circulating system to regulate the quantity of water passing around the vaporiser
and such quantity is regulated by varying the area of the outlet to suit the duty or
work the engine is doing.
When a very heavy hydro carbon oil is used for the working of the engine we
prefer to use the oil from the oil supply tank instead of water as before stated;
this is for the purpose of increasing the temperature of the oil before entering the
vaporiser to facilitate its evaporation. In some instances a small fan or blower may
be used suitably worked from the engine, and the blast thus caused made to play
upon the vaporiser to keep it at a proper temperature. It is obvious that this
cooling arrangement may if desired be kept separate from that employed to keep
the cylinder of the engine cool.
Signed this 29th day of February 1892.
HERBERT AKROYD STUART.
C. R. BINNEY.
COMPLETE SPECIFICATION.
Improvements in Hydro Carbon Engines.
We, HERBERT AKROYD STUART, of Bletchley Iron Works, Bletchley, in the
County of Buckingham, Mechanical Engineer, and CHARLES RICHARD BINNEY,
of 5, Hackney Road, in the County of London, Consulting Engiucer, do hereby
declare the nature of this invention and in what manner the same is to be

page_text: performed, to be particularly described and ascertained in and by the following
statement :-
This invention relates to improved means for controlling or regulating the tem-
perature of a vaporizer such as is described in the Specifications of former Letters
Patent granted to us and numbered respectively 7,146 A.D. 1890 and 15,994
A.D. 1890.
We have found in practice that when an engine has been running fully loaded
for a considerable time the vaporizer sometimes becomes overheated and the object
of this invention is to prevent such overheating.
In carrying this invention into practice a vaporizer is constructed in the same
general form and for the same purpose as described in the Specifications before
referred to, but instead of its cooling by normal atmospheric radiation, we arrange
in conjunction therewith a jacket or chamber for water or liquid (preferably around
the contracted or necked portion of the said vaporizer) and according to the work
the engine is doing allow more or less liquid to flow through the said jacket or
chamber.
To enable our invention to be fully understood we will describe the same by
reference to the accompanying drawing in which :-
Figure 1 is a sectional elevation of a portion of a hydrocarbon engine having
our improvements applied thereto, and
Figure 2 is an end view illustrating a modification.
a is the engine cylinder 6 the vaporizer and c the neck containing the passage for
establishing communication between the said vaporizer and the said cylinder.
d is the jacket surrounding the neck c, which jacket as shewn in the drawing, is
formed integral with the vaporizer. e is a circulating tank with which the space f
enclosed by the jacket is connected by the flow and return pipes g, h respectively.
i is a cock for regulating the flow or circulation of the water so that a greater or
less quantity shall pass around the neck of the vaporizer according to the work
the engine is doing.
We sometimes cause the flow of water through the jacket by means of a pump
or its equivalent. This pump which is indicated by the letter j in Figure 2 is
preferably operated by means of the lever k through the medium of which the oil
pump of the engine is operated so that when the engine receives a supply of oil
a proportioned quantity of water is caused to enter the jacket and to expel a
corresponding quantity of heated water therefrom. This arrangement is adapted
for use when the engine or oil pump is governed by what is known as the "hit and
miss" governor motion.
When a very heavy hydrocarbon oil is used for working the engine we prefer to
use the oil from the oil supply tank as the cooling medium instead of water as the
oil is more or less heated before entering the vaporizer and thereby the vaporization
is facilitated.
Instead of using a liquid cooling medium in a jacket we in some instances employ
a small fan or blower worked from the engine and the blast produced by which is
directed between the vaporizer and a cover surrounding the same.
It is obvious that the arrangements hereinbefore described for cooling the neck
of the vaporizer may be kept separate from that employed for cooling the cylinder
of the engine and it is also to be understood that instead of forming the jacket
merely around the neck of the vaporizer it may be formed also around other parts
thereof.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
'claim is :-
1. In a hydrocarbon engine the combination with the vaporizer of a jacket
through which a cooling medium such as water is caused to flow substantially no

page_text: 2. In a hydrocarbon engine the employment in combination with a vaporizer of
a fan or blower the current of air produced by which is passed between the said
vaporizer and a cover surrounding the same, substantially as described.
Dated this 28th day of December 1892.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.