Improvements in and connected with Carburettors for Gasoline or Oil Motors.
Year: 1899

page_text: Date of Application, 25th Apr., 1899-Accepted, 2nd June, 1899
COMPLETE SPECIFICATION.
Improvements in and connected with Carburettors for Gasoline or
Oil Motors.
JEAN RAMBAUD, of 12, Rue de l'Oiselière, Lyons in the Republic of France,
Mechanician, 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 carburetting apparatus for gasoline or oil motors for
motor-cars and fixed installations.
The apparatus which forms the object of the invention is shown in Figures 1
and 2 of the accompanying drawings, in vertical and horizontal sections and is in
principle composed as follows:
1st. Of a cylindrical or polygonal reservoir a in which a float 6 carrying at its
upper part a valve o can freely play. This arrangement of float and valve, having
for its object to maintain the liquid in the reservoir a at a given height is
regulated once for all.
2nd. Of a carburetting box d attached to the reservoir a in any suitable manner
at a certain height and in such a way that the pipe e which conveys the spirit opens
into it by means of a nozzle f at a height lower than the level of the liquid in the
float arrangement. A valve g tapering in its upper part to form the closing piece
and cylindrical beneath to allow of its good guidance is located on the nozzle f
and connected with a central rod provided with one or more discs (one only is
shown in the drawing) which allow of a little play between them and the external
casing for the passage of hot air coming from the orifice m. A partition j
soldered to the upper part of the box d is provided with two openings, the centre
one of which serves as guide for the rod whilst the other p serves as passage for
the hot air which thus entirely surrounds the nozzle for discharging the hydro-
carbon.
A movable regulating screw k accessible from the outside enables the lift of the
valve regulating the admission of the spirit to be varied allowing said valve to
make a full or only a partial movement according to requirements in order to obtain
mixtures more or less rich in proportion to the degree of compression of the motor.
A spring located at the lower extremity of the arrangement of disc or discs i
prevents any abrupt rising of the latter." The hot air coming from the motor
arrives by m and is discharged at n, after having been carburetted, in order to be
admitted to the suction valves of the motor.
The working of the apparatus is very easily understood. The liquid (gasoline.
spirit, petroleum or the like) coming from the storage reservoir, which may be of
any suitable pattern and placed at any suitable distance, but under pressure by
means of a supply pipe penetrates into the receptacle a containing the float
where equilibrium is established. Now supposing the motor to be in movement,
the spirit arrives beneath the valve g which is held down by the weight of the disc
or discs and the spring 1. Under the influence of the suction in the carburetting
box produced by the pull of the piston, the disc or discs i rise and cause the valve
to open and give passage to the spirit which thus automatically carburates the air
to an extent which may be suitably regulated by means of the screw k.

page_text: The advantage of this arrangement is at once evident, as it only discharges the
amount of spirit strictly necessary and dispenses with the very delicate use of a
mixing tap.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. A system of carburettor for gasoline or oil motors composed of two boxes con-
nected by a pipe which conveys the hydrocarbon employed, the first box being
provided with a float connected with a rod carrying a valve, adapted to close the
aperture for the inflow of the hydrocarbon, and the second box having at its centre
a movable and adjustable rod carrying one or more discs and provided with a valve
adapted to uncover or close the nozzle for supplying the hydrocarbon, substantially
as hereinbefore described and shown.
2. In a carburettor for gasoline or oil motors the use of one or more discs adapted
to be raised automatically by the suction of the motor and the use of a screw
regulator which by acting on the lift of the valve for controlling the discharge of
the hydrocarbon enables a mixture of any suitable richness to be produced,
substantially as described.
3. In a carburettor for gasoline or oil motors, the arrangements of inlets and
outlets for the heated air placed respectively at the bottom and top of the
carburetting box substantially as described.
Datad 1
2441
1000
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.