A New or Improved Admission Valve for Gas or Oil Engines.
Year: 1893

page_text: Date of Application, 28th Feb., 1893-Accepted, 1st Apr., 1893
[Communicated from abroad by RICHARD LANGENSIEPEN, of Buckau-Magdeburg,
in the German Empire, Engineer.]
A New or Improved Admission Valve for Gas or Oil Engines.
I, WILLIAM EDWIN HEYS of 70 Market Street, Manchester, in the County of
Lancaster, Patent Agent, 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 the admission valves of gas, petroleum and similar
engines, and its object is to provide means for introducing air and petroleum
simultaneously into the gas forming chamber or air and gases into the mixing
chambers without the use of pumps or other measuring appliances, in a simple and
safe manner.
Valves constructed according to this invention may be adjusted to permit
the petroleum or gas to enter simultaneously with the air, or at any desired
later period; and the quantity of the petroleum or gas which is to be introduced
is determined by the size of the area of the opening in the interchangeable
valve seat.
The
accompanying drawings, reference to which is hereinafter made, illustrate in
what manner this invention may be carried into effect.
Figure 1 illustrates a section of the improved air and gas or oil admission valve
in a closed position and secured to the mixing chamber.
Figure 2 similarly represents the valve on an enlarged scale.
Figure 3 represents the duplex valve at the moment of opening the oil or gas
admission port.
Figure 4 shews a plan of the oil or gas admission valve secured to the stem of the
Bir valve.
The oil or gas admission valve is fixed to the stem of the air valve a by means
of a screw,
and consists of the case band a valve c which is pressed upwards by
means of a spring, and the upward lift or stroke of which is limited by a collar
or projection. According to the position in which the valve casing b is fixed,
higher or lower upon the air valve rod a the moment of the opening of the valve
at c is altered.
Figures 1 and 2 represent the duplex valve with both the air and gas or oil ports
closed. As represented in Figure 3 the air valve proper a together with the case b
has travelled a distance m n the valve e being just about to leave the seat d and
admit the oil or gas.
The lift of the valve c and consequently the time or moment
of its opening may be varied by altering the position of its collar or projection, as
well as by altering the position of the valve case b on the valve stem a. To
ensure the even and constant introduction or feed of petroleum or gas into the
engine (which in the constructions in use up to the present time can only be done
by means of pumps and special regulating valves and other measuring appliances)
the valve seat d is made interchangeable, and is provided with an opening of an
area and length, the dimensions of which have been empirically fixed, and through
which in a determined time and under otherwise equal pressures, a certain quantity
only of petroleum or gas can pass. The air enters at L in Figure 1; whereas the
petroleum or gas enters at e. The opening of the combined inlet valve which is
kept closed by a spring is effected by the suction of the working piston, the gas
forming or gas mixing chamber V below the air valve being in direct
communication with the working cylinder. The opening of the said valve may
however likewise be effected by any kind of reversing gear, but only during the
suction period.

page_text: 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. A. duplex valve for the admission of air and gas or oil to a gas or oil engine,
constructed arranged and operated substantially as hereinbefore described and as
illustrated by the accompanying drawings.
2. The combination with a duplex admission valve constructed as hereinhefore
described of exchangeable valve seatings substantially as and for the purpose
hereinbefore set forth and as illustrated by the accompanying drawings.
Dated this 27th day of February A.D-1893.
WILLIAM E. HEYS.