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Патент USA US2072403

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.March 2, 1937.
¢_ A, LAUSEN
VALVE GEAR FOR A LIQUID PUMP OPERATINGI MOTOR
2,072,403
March 2, 1937. `
c. A. LAusEN
2,072,403
VALVE GEAR FOR A LIQUID PUMP OPÉRATING MOTOR
Filed Aug. 8, 1935 >
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Patented Mar. 2, 1937
2,072,403>
UlTED STATES PATENT OFFICEv
2,072,403
VALVE GEAR FOR A LIQUID PUMP OPERAT
ING MOTOR
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Christian A. Lausen, Fort Worth,v Tex.Y _
Application August 8, 1935, Serial No. 35,370"
4 Claims. (Cl. IBI-_147)
The invention relates to well pumping devices
particularly to a device for deep well pumping
the scope of what is claimed without departing
from the spirit of the invention.
wherein the columnar weight of the liquid in `
In the drawings:
the well casing is too heavy for ordinary pumping
Figure l is a side elevation of the pumping and
5 purposes and the columnar weight is utilized for
maintaining a balance of the liquid during the
pumping operation.
A further object is to provide a piston and
weight means in connection with a valve piston
10 for alternately applying pressure in one direction
and the other for varying the direction of move
ment of the pump piston within the well casing.
A further object is to provide the reversing
valve piston with piston means connected thereto
l5 and operated by pressure in the pipe line circuits
on opposite sides of the reversing valve piston
control device.
Figure 3 is a side elevation of the pressure con
trol mechanism, parts being shown in vertical
longitudinal section to better illustrate the struc- l0
ture.
Figure 4 is a top plan view of the pressure con
trol mechanism, the valve casing being shown
broken awayA to show the valve ports therein.
Figure 5 is a vertical transverse sectional view 15
-for alternately allowing pressure to be applied
through the reversing valve taken on line 5_5
of Figure 3.
to the pipe line circuit on opposite sides thereof.
A further object is to provide a piston within
20 a cylinder and having connection with the re
This application is an improved valve control
ling mechanism for liquid pumps as set forth in
ciprocating valve piston for reversing the direc
tion of pressure and allowing the application of
pressure from a `source of pressure sup-ply to
opposite sides ‘of the pipe circuit to the well and
25 weight means in connection with said mechanism
for accelerating the action thereof.
A further object is to provide by-pass means
from both sides of the pipe line circuit leading
to the well and discharging into the valve control
30 piston cylinder on opposite sides thereof, for al
lowing reciprocation of the piston within the
cylinder as pressure is applied to one side orthe
other of the pipe line circuit.
A further object is to provide cushioning cylin
35 ders-in connection with the by-pass pipes to take
up the jar in the system incident to the velocity
of the liquid.
A further object is to provide the reciprocating
slide valve with a link connection with a pivoted
40 T-shaped rockable member pivoted on the point
of the Weight arm, which weight arm is adapted
to move by gravity when forced by a yoke carried
by the piston rod in the control cylinder. The
45 weight, in its fallby gravity in opposite direction,
moves an arm into engagement with lugs carried
by the alined arms of the T-shaped member for
accelerating the movement thereof and the re
versing valve piston.
50
With the above and other objects in view the
invention resides in the combination and ar
rangement of parts as hereinafter set forth,
shown in the. drawings, described and claimed, it
being understood that changes in the precise em
"55 bodiment of the invention may be made Within
5
Figure 2 ist avvertical transverse sectional view
through the well casing and parts therein.
my Patent No. 2,018,215, dated October 22, 1935, 2o
and the main pump operates in the same manner
as set forth in said patent.
Referring to the drawings, the numeral I desig
nates, the well casing, particularly of the type
used in connection with deep wells, for instance 25
oil‘ wells ofthe non-ñowing type and 2 a cap
carried by the upper end of the casing, which
is disposed above the ground level 3. Disposed
within the well casing I in spaced relation to the
inner periphery thereof is a stationary cylinder 30
ll which comprises upper and lower sections 5 and
E. The cylinder t is elongated and may be of any
length desired, depending upon the amount of
liquid it is desired to lift on each reciprocation
of the lifting piston' 1.
35
The cylinder sections 5 and 6 are connected
together by a spacing member la, which engages
the inner periphery of the casing I as clearly
shown in Figure 2, and is provided with internally
threaded flanges 8 in which the adjacent ends
of the cylinder sections 5 and 6 are threaded.
Threaded at 9 on the upper end of the cylinder,
section 5. is a reducing coupling I 0 in the reduced
portion of which the discharge tube II is thread
ed, which discharge tube extendsl upwardly 45
through the packing I2 in the cap 2, and through
the tube liquid discharged from the device is
forced upwardly on the upward stroke of the pis
ton l. Threaded on the lower end of the cylinder
50
Il is a cap I3 in which is vertically movable a disc
I4 forming a valve which cooperates with a valve y
seat I5 and when unseated on the upward stroke
of the piston 'I allows fluid to enter the lower end
0f the Cylinder 4 so that upon the downward 55
2
2,072,403
stroke of the piston 1 said fluid will unseat the
lower piston valve I6 and allow the trapped iluid
to pass through the ports I1 into the hollow cylin
ing of pressure in the system which will be ap
plied to the piston 39 through the branch pipe 40,
der Iì in the chamber I8 where upon further up
pipes 33 and 43 are preferably provided with air
cushioning cylinders 4I for taking up the shock
incident to the velocity of flow of liquid in the
ward strokes of the piston the trapped fluid will be
forced back through the ports I1 and thence up
ward through the hollow piston 1 which is slid
ably mounted in the packing gland I9, unseating
system.
Branch
It will be noted that the fluid forced
upwardly alternately through the pipes 24 and
the upper valve 23 and allowing the trapped ñuid
to be forced through the discharge ports 2l in
the cap 22 carried by the upper end of the piston
21 will be discharged transversely through the
discharge port 42 in the casing 25 as the ports
43 in the control pistons are alternately placed
and into the chamber ofthe cylinder 4 above the
in registration therewith and with the ports 35
and 33.
It is advantageous and desirable to obtain a
piston where it can pass upwardly through the
tube II. The piston 1, at its upper and lower
‘. 4 Cal
thereby causing a reverse operation.
ends, is provided with packing rings 23, prefer
quick reversing of the operation and movement
ably of the cup type for preventing escape of
fluid around the piston. Connected to the upper
end of the discharge tube is the discharge pipe 24,
which is connected to the control piston casing
25 at 25, and connected to the casing 25 is a pipe
21, which discharges into the chamber 28 above
of the valve control piston 32 and to accomplish
this result the piston rod 44, carried by the pis
ton 33, is provided with a rectangularly shaped
yoke 45, which is slidably mounted on the base
the member 1, so that pressure may be intermit
tently supplied to the column of liquid in the cas
ing chamber 28 for applying pressure to the under
- side of the upper piston 23 through the apertures
29 for forcing the piston intermittently upwardly
for the intake operation and unseating the
valve I4.
Pressure is intermittently applied to the upper
end of the piston 1 through the pipe 24. Any
kind of pump 30 may be used; however a conven
member 46 for bracing the same against down- L
ward shock during the reversing operation. Piv
cted on the base member 43 at 41 is a T-shaped
bracket 43, to the inner side of which is pivoted
on the pivotal point 41 a lever 49 which is pro
vided with a weight 53. The arm 5I of the
T-shaped lever 43 extends upwardly and has its
alined arms 48a provided with inwardly extend
ing lugs 52 which extend into the path of the lever
49 whereby the lever is raised by the yoke 45
through which the pin 53 extends, and which pin
is carried by the plate 54 mounted on the lever
tional form _of pump is shown and supplies pres
sure to the casing 25 through the pipe 3l, and
this pressure is alternately supplied to pipes 24
and 21 for changing the liquid balance within the
well structure. To acomplish this result a longi
43 and moves therewith.
tudinally movable control piston 32 is provided
the arrow b, Figure 3, the yoke 45, through which
within the casing 25, and which control piston is
provided with a V-shaped port 33 in the periph
the pin 53 extends, will force said pin and the
weighted lever 49 towards a vertical position and
towards the control valve 32. When the weight
ed lever 49 passes the vertical position the weight
55 will cause said lever to be accelerated in its
movement, incident to gravity, and the lever will
fall until it engages the pin 52 adjacent the valve
32 and will cause a quick and rapid shifting of 45
the valve. In the meantime the pin 53 will en
gage the other side of the yoke and upon the
reverse movement of the piston 39 in the direc
tion of the arrow a, the operation will be reversed
and the parts will assume the position shown in 50
Figure 3. To absorb the shock of the movement
of the lever 49 in the direction of arrow a, Figure
3 a bumper spring 56 is provided. Shock of
movement in the opposite direction may be taken
ery of the piston which is adapted to cross con
nect the pressure supply port 34 with the ports
35 and 36 according to whether the piston is in
one position or the other; it being shown in outer
position in Figure 3, and at which time pressure
is passing through the pipe 21 for forcing the
piston 1 upwardly for the intaking operation, and
when the piston is stopped in its upward move
ment by engagement of the upper side of the re
ducing coupling I0, the liquid balance in the de
vice is overcome, thereby causing pressure to
enter the chamber of the cylinder 31 through the
pipe 38 and force the piston 39 in the direction
of the arrow a.
This action will cause outward
movement of the piston valve as clearly shown
„ in Figure 3. When the balance is again changed
as far as pressure is concerned pressure from the
pipe 24 will pass to the chamber of the cylinder
31 through the by-pass pipe 40 and will force
the piston 35i in the direction of the arrow b.
This action will move the valve control piston in
the opposite direction so that the V-shaped port
33 will cross connect pressure supply port 34 and
port 35 for supplying pressure in the pipe 24.
The above operation continues, and this last op
eration applies pressure to the upper side of the
piston 1 through pipe 24 and tube II, thereby
forcing the piston 1 downwardly for the reverse
operation.
As the piston 1 moves downwardly during the
above operation, disc I4 seats and the weighted
valve I6 is unseated, therefore the trapped liquid
passes through the ports I1 into the chamber IB
around the piston 1, and when the piston reaches
the end of its stroke there is a back pressure
through the pipe 24 which causes an overbalanc
The upper end of the arm 5I of the T-shaped
bracket 43 is provided with a link connection 55
with the slidable valve piston 32. In operation,
when the piston 39 is moved in the direction of
up by compression of air in cylinder 25 by pis
55
ton 32.
From the above it will be seen that a quick
acting reversing mechanism is provided for the
control valve 32 and that the shifting of pres
sure from one side to the other of the pipe circuit 60
is practically instantaneous.
The invention having been set forth what is
claimed as new and useful is:
1. A control valve for regulating flow through
two pipe lines, said control valve mechanism
comprising a cylinder, a piston slidably mounted
in said cylinder, pipe connections between the
cylinder on opposite sides of the piston mounted
therein and the pipe lines, a rockable member,
a link connection between the rockable member 70
and the control valve, a pivoted weighted lever
adjacent the rockable member, stops carried by
the rockable member and between which the
weight lever has freedom of movement, a piston
rod carried by the piston, a yoke carried by the 75
2,072,403
piston rod, a lug carried by the weight lever and
extending through the yoke, said yoke cooperat
ing with said last named lug for shifting the
weight lever to positions beyond a vertical Where
by the weight lever Will fall by gravity against
the pins carried by the rockable member for
accelerating the movement of _the valve shifting.
2. A control valve mechanism for regulating
ilow through two pipe lines, said control valve
10 mechanism comprising a cylinder, a reciprocat
ing piston within said cylinder, a connection be
3
pipe lines, a piston rod carried by the piston, a
yoke, a base on which said yoke is slidably
mounted, a T-shaped lever having the end of
one of its arms pivoted to the base, a link con
nection between said last named arm and the
control valve, spaced lugs carried by the other
arms of the T-shaped member, a pivoted Weight
ed lever mounted on the base and having free
dom of movement between the space lugs and a
lug carried by the weight lever and extending 10
through the yoke and having limited freedom of
tween said piston and the control valve, by-pass movement therein.
connections between the pipe lines and opposite
4. The combination with a control valve shift
sides of the piston and cylinder, a weight lever, able for regulating the flow through twoA pipe
a yoke movable by the piston and controlling lines, of means for shifting said valve, said means 15
the movement of the weight lever for shifting comprising a cylinder, a reciprocating piston
the same beyond a vertical and allowing the within said cylinder, a connection between the
same to fall by gravity, a pivoted member ad
piston and the control valve, by-pass connec
jacent the Weight lever, stops carried by the piv
tions between the pipe lines and opposite sides
20 oted member and between which the weight lever of the piston in the cylinder, a piston rod car
swings in its movement, said weight lever form
ried by the piston, a pivotal member adjacent
ing means for rapidly rocking the rockable mem
the end of the piston, a weight lever pivoted ad
ber under the force of gravity and a connection jacent the pivoted member and movable between
between the rockable member and the control stops carried by the pivoted member, a yoke car
valve.
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ì ried by the piston, a lug carried by the weight 25
3. A control valve mechanism for regulating lever and extending through the yoke and hav
flow through two pipe lines, said control valve ing limited freedom of movement therein, and
mechanism comprising a cylinder, a piston in a connection between the pivotal member and
said cylinder, means for> shifting said piston, said the control valve.
30 means comprising by-pass connections to the
CHRISTIAN A. LAUSEN.
30
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