Improvements in Governing Arrangements for Internal Combustion Engines...
Year: 1898

page_text: . . Date of Application, 17th Aug., 1898.
Complete Specification Left, 17th May, 1899-Accepted, 17th June, 1899
Improvements in Governing Arrangements for Internal Combustion
Engines...
I, CHARLES WILLIAM PINKNEY, of 77, Raglan Road, Smethwick, in the County
of Stafford, Engineer,. do hereby declare the nature of my invention to be as
follows:-
My invention has for its object to provide means whereby a larger supply of
gas or the like (I will refer to it as gas) is taken into the cylinder for the
first charge after the governor has effected a cut-out of the gas supply so as to
make the said first charge of the necessary strength for proper ignition and
explosion and prevent back firing.
According to my invention the pecker; or the like which is operated by the
governor and which operates the gas supply valve opens the said valve in the
usual way when the engine is acting normally but when the governor causes
the said pecker to move out of such normally operative position it acts upon a
device by which a piece is brought into position or allowed to take a position such
as virtually to lengthen the part upon which the pecker normally acts, so that
when the governor causes the pecker to return to its normal position its first
stroke after the preceding cut-out is made against the piece brought into position
as aforesaid so that the gas valve at this first stroke after cut-out is so opened
that a greater amount of gas is admitted to the engine than is the case at the
succeeding strokes when the engine is acting normally. At the termination of
the first stroke of the pecker after cut-out the piece aforesaid is moved back or
withdrawn and retains, or is retained in, its normal position until after the next
cut-out takes place. I may use any suitable form of governor. That described
in the Specification of Letters Patent granted to me No. 7313 of 1891 is a very
suitable form.
Dated this 1741, low of
1000
COMPLETE SPECIFICATION.
0 Improvements in Governing Arrangements for Internal Combustion
Engines.
I, CHARLES WILLIAM PINKNEY, of 77, Raglan Road, Smethwick, in the County
of Stafford, England, Engineer, do hereby declare the nature of this invention
0..מ

page_text: and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement: —
My invention has for its object to provide means whereby a larger supply of
gas, or the like, (I will refer to it as gas), is taken into the cylinder for the
first charge after the governor has effected a cut-out of the gas supply, so as to
make the said first charge of the necessary strength for proper ignition and
explosion and prevent back firing.
According to my invention the pecker, or the like, which is operated by the
governor, and which operates the gas-supply valve, opens the said valve in the
usual way when the engine is acting normally, but, when the governor causes
the said pecker to move out of such normally operative position, it acts upon a
device by which a piece is brought into position, or allowed to take a position, such
as virtually to lengthen the part upon which the pecker normally acts; so that
when the governor causes the pecker to return to its normal position its first
stroke, after the preceding cut-out, is made against the piece brought into position
as aforesaid so that the gas valve at this first stroke after cut-out, is so opened
that a greater amount of gas is admitted to the engine than is the case at the
succeeding strokes when the engine is acting normally. At the termination of
the first stroke of the pecker after cut-out the piece aforesaid is moved back, or
withdrawn, and retains, or is retained in, its normal position until after the next
cut-out takes place. I may use any suitable form of governor. That described
in the Specification of Letters Patent granted to me No. 7313 of 1891 is a very
suitable form.
Figure 1 is a sectional elevation of an arrangement according to my invention
shewing also the arrangement of incline governor A, B, C, operated by the cam D,
on the side shaft E. In this view part of the mechanism arranged according to
my invention is fixed on the gas valve box F, and part on the outer end of the
gas valve G, and the guide block H. When the engine is loaded the outer end
of the pecker C, comes in contact with the block H, as shewn, and, as the cam D
revolves in the direction of the arrow A it advances the lever B, and the incline A
and pecker C, and the gas valve G, is opened, during any desired time for charging
purposes. When the engine increases in speed beyond the normal, the incline J,
runs more quickly over the roller K, and throws the outer end of the pecker C,
on to the top of projection M, and as the cam D revolves in the direction of
arrow A, the outer end of the pecker C comes against the sliding block L and
pushes it forward and the tail piece (attached to the said block L and guided
in an orifice in the extension of the gas vaive box) comes in contact with the
end of the lever Q and turns the said lever on its centre P and the part Q' of
the said lever moves up the shutter S guided by the pin X working in an orifice
in the block H. The gas valve G is not opened during this stroke, but held on to
its seating by the spring W, pushing against the block H which is secured to the
valve stem by the set pin V. The inclined piece T on the lever Q has now
been raised into the inclined gap U, in the block H. The parts are shewn in
dotted lines in the positions they now assume. While the engine is running
beyond its normal speed the pecker C will continue to pass on to the top side of
block H, but directly the speed of engine returns to normal, the pecker C will
again strike the underside of the projection M, but as the shutter S is still held
in its elevated position by the friction caused by a spring in the head of pin
centre P (arranged as illustrated in section in Figure 2), the pecker will come
in contact with the said shutter S and, as the cam 1 revolves, it will cause the
gas valve G to be opened wider, thereby giving more gas for the first charge after
the governor has cut out. When the pecker C comes in contact with the shutter S
for giving the first charge of gas after cut out, on opening the gas valve G it
causes the incline surface of the gap U in the block H to press against the incline
projection T on the lever Q and lower it again when the highest rise on the

page_text: cam D is fully advanced, or the gas valve G is fully open. The shutter S will
then be held in its highest position by the pecker C, but when the gas valve is
closed, the pecker C will release the shutter S and it will then fall to its lowest
position and allow the pecker C to give gas for the loaded normal speed of engine
by striking the face of the block 1. Figure 3 shews an arrangement wherein
the lever is formed with a projection L extending over the upper side of the
block H so that when the pecker is thrown up it forces its way underneath the
said projection L and raises it and consequently the shutter S. In the arrange-
ment shewn in views at right angles to each other in Figures 4 and 5 the lever Q
is situated above the block H and carries the inclined piece L upon which the
pecker C acts, the said lever Q extending down at the side (as shewn in Figure 5)
and carrying the parts Q and T which extend under the shutter S and incline U
and act as described with regard to the same parts in Figure 1.
Figures 6 and 7 are sections at right angles to each other shewing another
modification in which the lever Q is secured to the block H by the centre pin P
and has a projection Qengaging in a slot in the shutter S-the pecker C,
when thrown up, acting against the inclined surface L on the lever Q. The said
lever is returned by the back part T coming into contact with the facing A¹, on
the gas valve box projection when the gas valve G is being opened, which
operation will cause the lever Q to assume the position shewn and the shutter will
descend. Instead of using the spring Z as in Figure 2 I use a spring washer 2
as shewn in Figure 7 to keep the lever Q temporarily in position. Figures S
and 9 are a longitudinal section and an end view of a modification wherein the
lever Q is dispensed with. The spring A² (which is a little stronger than the gas
valve spring W) pushes the shoulder A on the sliding shutter S hard up against
the catch A secured to the spring a fixed to the block H by the screw A8. The
said shutter S is prevented from turning round by the plate M, which also serves
as the rest for the pecker C when thrown up. When the engine is working with
load, or at normal speed, the pecker C strikes the sliding shutter S and opens the
gas valve G, but when the engine works beyond its normal speed the pecker C
passes on to the top of the plate M and lifts the spring catch A", and moves it
clear of the shoulder A, and the spring A2 forces the sliding shutter S forward
until the second shoulder A thereon comes in contact with the catch A" and when
the engine returns to its normal speed, the pecker C will strike the sliding
shutter S in its advanced position, and open the gas valve G to the increased
extent required for the first fire after cut out and when fully open the shoulder A"
on the block H comes in contact with the facing A' on the extension of the valve
box and the pecker C forces the sliding shutter S against the spring A², until
the spring catch A again comes over the shoulder A, after which the gas valve
closes.
Although I have described the arrangements as used in connection with my
incline governor, other kind of governors (such as the inertia, and centrifugal
type, for instance,) can be used instead and my invention may be applied to
engines firing every revolution as well as to engines using what is known as the
Otto cycle.
Having now particularly described and ascertained the nature of this
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. In internal combustion engines, the combination, with the governor and the
part which operates the gas supply valve, of a device which, when the governor
cuts off the supply of gas, is brought into. position by the said governor so as
to cause a larger supply of gas than the normal to be taken into the cylinder for
the first charge after the said cut off substantially as hereinbefore described.
2. In, or for internal combustion engines, the several arrangements and
¡ combinations of parts for the purpose hereinbefore described and claimed, con-

page_text: stituting the several apparatus; substantially as hereinbefore described and
illustrated in the several figures of the accompanying drawings.
Dated this 17th day of May 1899.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C.
Agents.