Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
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BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates generally to pumps and, more specifically, to a
submersible
hydraulic powered pump for removing matter such as liquid, abrasive
particulate, slurries or
mixtures, from a sump or container.
The pump has a housing with an integral stand projecting therefrom comprised
of a
plurality of legs extending to a base plate that will keep the pump spaced
away from the ground
and gauge the size of matter allowed to enter the pump. Positioned within the
housing base is an
ingress aperture serving as the intake for flowable matter into a chamber
having an impeller
assembly driven by a hydraulically powered motor.
One of the unique features of the pump are a number of apertures placed in the
impeller
base plate to allow trapped air to escape, thus preventing the typical air
block that effects the
output flow rate if not preventing any output from occurring. This feature
allows the pump to
run dry, which in itself is a labor saving design in conditions where the sump
source material is
sporadically provided, currently requiring stopping and restarting the pump or
the need for
incorporating some sensor logic to detect pumpable source material to engage
and disengage the
pump.
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As stated, the impeller assembly consists of a plurality of perforated plates
and an
impeller that allows for the release of trapped air through the impeller
assembly's apertures to
prevent the buildup of air and unwanted pressure gaps within the pumping lines
also known as
"air lock".
Additionally, the impeller plate and impeller blades have an increased
clearance from the
sides of the housing to prevent jamming of the impeller due to large
particulate matter becoming
lodged therebetween during rotation and also to more efficiently induce
centrifugal motion about
the drawn matter contained in the housing.
Another advantage of the present invention is the placement of the egress port
transverse
to the pump rotation, commonly referred to as a centrifugal pump where the
slurry is ejected
from the side of the pump housing, which in combination with the creation of a
gap between the
housing ingress port and the impeller blades allows for larger particulate
matter to be directed to
the output port without engaging the impeller blade.
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Description of the Prior Art
There are other pumps designed for moving fluid material. Typical of these is
U.S.
Patent No. 3,230,890 issued to Yokota, et al on Nov.15, 1963.
Another patent was issued to Daniel on Aug. 20, 1968 as U.S. Patent No.
3,397,647. Yet
another U.S. Patent No. 4,138,202 was issued to Eller on Feb. 6, 1979 and
still yet another was
issued on Apr. 17, 1979 to Arnold as U.S. Patent No. 4,149,603.
Another patent was issued to Spruiell on May 26, 1981 as U.S. Patent No.
4,269,566.
Yet another U.S. Patent No. 4,541,779 was issued to Birdwell on Sep. 17, 1985.
Another was
issued to Back on Apr. 26, 1994 as U.S. Patent No. 5,306,124 and still yet
another was issued on
Mar. 25, 1997 to Moon as U.S. Patent No. 5,613,845.
Another patent was issued to Birdwell on Apr. 1, 1997 as U.S. Patent No.
5,616,009. Yet
another U.K. Patent No. GB530,058 was issued Jackson on June 2, 1939. Another
was issued to
Futros on Jun.25, 1985 as Canadian Patent No. CA1,189,387 and still yet
another was issued on
Oct. 1, 2001 to Gluskin as Russian Patent No. RU 2,196,253C1.
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U.S. Patent Number 3,230,890
Inventor: Hidekuni Yokota, et a1.
Issued: January 25, 1966
A centrifugal pump assemblage comprising a main pump having a casing, a
driving shaft,
a main centrifugal impeller mounted on said shaft within a casing, a suction
inlet and a discharge
outlet communicating with said casing, an auxiliary pump having an auxiliary
casing disposed in
side - by - side relationship to the main pump casing, a common wall between
said main and
auxiliary centrifugal impeller, said driving shaft extending through the
auxiliary pump casing,
said common wall, said auxiliary impeller being mounted on said shaft within
said auxiliary
pump casing, said common wall having a central suction inlet opening therein
providing
communication between said main pump casing and said auxiliary pump casing,
means on said
shaft serving to restrict the cross sectional area of said central suction
inlet opening, a discharge
outlet from said auxiliary casing communicating with the suction outlet of the
main pump casing,
whereby dense fluid is discharged from said auxiliary pump casing to the
suction inlet of said
main pump casing, and a vacuum pump having a suction inlet in communication
with said
auxiliary pump casing, the pumping capacity of the vacuum pump being such that
the vacuum
developed thereby is overcome by the pumping action of the auxiliary pump.
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U.S. Patent Number 3,397,647
Inventor: W. H. Daniel
Issued: August 20, 1968
A pump convertible to and from floating operation and dry base operation,
comprising a
float, a support carried by a float, a pump mounted on the support, and means
releasably
selectively securing the pump to one side of the support for floating
operation and to the other
side of the support for dry base operation.
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U.S. Patent Number 4,138,202
Inventor: Marlin Eller
Issued: February 6, 1979
The present hydraulic system for driving a submersible pumping unit has an
above-
ground pump for pumping oil through a hydraulic motor in the submersible
pumping unit, and a
check valve between the above-ground pump and that hydraulic motor to prevent
the reverse
flow of oil after the submersible pumping unit is turned off. A pressure
regulating valve limits
the oil pressure to the hydraulic motor. The inlet flow to the above-ground
pump is filtered.
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U.S. Patent Number 4,149,603
Inventor: James F. Arnold
Issued: April 17, 1979
A system and method are disclosed which eliminates the use of a riser pipe in
underwater
drilling operations. The system includes a mud sump connectable to the top of
a submerged
wellhead and has a bottom with a mud inlet provided therein and an upwardly
extending wall
cooperating with the bottom to support a quantity of mud, the sump restricting
the water to
contact with only the upper surface of the mud as the mud passes upwardly
through the mud inlet
in the bottom. A hose, separate from the drill string, is used to carry mud to
the surface of the
water. A pumping means is used to pump mud through the hose in response to the
quantity of
mud supported within the sump to thereby return the mud to the surface of the
water without the
use of a riser pipe.
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U.S. Patent Number 4,269,566
Inventor: Walter L. Spruiell
Issued: May 26, 1981
In the pumping of abrasive liquids, particularly drilling mud, the packing and
seals of the
centrifugal pump are quickly cut out, making replacement and down time a
problem. The
present invention utilizes the abrasive liquid being pumped to function
instead of packing and
seals, furthermore, the suction chamber is between the abrasive liquid forming
the seal, within
the sealing housing, and the primary impeller chamber.
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U.S. Patent Number 4,541,779
Inventor: J, C. Birdwell
Issued: Sep. 17, 1985
A multicylinder, hydraulic-driven, dual arranged mud pump is disclosed. The
preferred
embodiment consist of dual mud pumping units arranged to be selectively
operated as individual
pumps, as two pumps whose output flow is in parallel, or as two pumps whose
output flow is in
series. Each mud pumping unit is comprised of plural pumping assemblies with
each assembly
consisting of a pair of separate end to end cylinders, one cylinder being
arranged to be driven by
a second cylinder with the one cylinder further being arranged to pump mud and
the second
cylinder being arranged to be reciprocally driven in a sequential manner by
pressurized hydraulic
fluid. The pressurized hydraulic fluid is supplied to all operating second
cylinders from common
pressurized fluid source with the pressurized fluid being distributed to and
returned from the
second cylinder by an independently operated distribution valve, the volume of
pressurized fluid
flow being employed to synchronize the stroke and control the stroke length of
the second
cylinder which in turn controls the volume of pumped mud.
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U.S. Patent Number 5,306,124
Inventor: Carl F. Back
Issued: April 26, 1994
A mud pump assembly has a housing having a motor-mounting face directly
connected to
a standard hydraulic drive motor. The pump housing supports and partially
encloses a bearing
assembly which supports the pump impeller shaft. A face-type impeller shaft
seal is located
between the bearing assembly and the impeller. The motor case completes
enclosure of the
impeller shaft bearing assembly. A motor case drain line is coupled to the mud
pump housing
for continuous pressure lubrication of the bearing assembly. In one
embodiment, case drain fluid
is returned from the mud pump housing to the hydraulic fluid reservoir for the
hydraulic motor.
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U.S. Patent Number 5,613,845
Inventor: Sung Dai Moon
Issued: March 25, 1997
The present invention is relating to a circulating pump for pressurizing and
circulating
fluid in a system such as a boiler. An object of the present invention is to
provide a circulating
pump with a sub-impeller wherein a separate sub-impeller is provided below an
impeller for
moderating resistance occurring at the impeller due to pressure difference
between an impeller
chamber and an inside of the impeller during an operation of a pump so that
power loss is
prevented during a motor driving and a substance such as mud is prevented from
entering a stator
can. The circulating pump with a sub-impeller comprises a motor, an impeller
and a pump
housing. Below the impeller body, a sub-impeller with a plurality of radial
blades is provided.
The sub-impeller forces out pressurized fluid that has flowed below the
impeller back from
below the impeller radially while rotating. According to this, pressure
difference between an
impeller chamber and an inside of the impeller which makes the impeller rise
toward a suction
ring is reduced. Thus, loss of power consumed for overcoming the pressure
difference is also
reduced.
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U.S. Patent Number 5,616,009
Inventor: J. C. Birdwell
Issued: April 1, 1997
A multicylinder, double acting improved mud pump is disclosed. The preferred
embodiment incorporates a hydraulic powered piston in a cylinder which
connects with a piston
rod which, in turn, drives a second piston in a cylinder adapted to pump fluid
mud. The first
piston is driven by hydraulic oil delivered under pressure to intake manifolds
through an
independently driven valving apparatus which times the delivery of the
hydraulic fluid for the
main power stroke and further times the discharge of the hydraulic fluid for
the return secondary
power stroke, the system being controlled independently of piston action in
timing of multiple
pistons in multiple cylinders by the valve system. Additionally, an intake
valve delivers fluid
mud at lower pressure on the intake side of the mud compression piston, and an
outlet valve
transverses with the piston rod to direct the outlet mud flow. Additionally, a
mud piston is
provided which defines a first compression chamber for receipt of incoming
fluid mud and a
second compression chamber for discharge of pressurized fluid mud.
Additionally, the outlet
flow valve being contained within the confines of the mud piston and
additionally the
unidirectional flow valve being operatively controlled by the movement of the
mud piston
driving rod.
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U.K. Patent Number GB530,058
Inventor: Byron Jackson
Issued: December 4, 1940
Well drilling systems. STEVENS, A. H. (Jackson, Co., B.). June 2, 1939, No.
16333.
[Class, 85] A rotary well drilling system comprises a hollow drill string
driven by a rotary table
and supported by a hoist, a hydraulically actuated mud pump for forcing mud
through the drill
string, and a motive liquid system including a prime mover driving a pump
supplying fluid to
drive the mud pump, the mud pump comprising a cylinder containing both motive
fluid and mud
separated by a piston the opposed pressure faces of which are approximately
equal. A steam
turbine drives a multi-stage series-parallel centrifugal pump controlled by a
cross-over and valves
and delivering to pipe from which, through' valve and needle control valve,
supply is effected to
a Pelton wheel driving the rotary table, through gearing. A hand-controlled
balanced piston
valve, controls supply from pipe to cylinders of a hydraulic hoist which has a
stroke at least as
long as a section of drill pipe and supports and feeds the drill string and
valve controls supply to
drive the mud pump comprising aligned cylinders <SP>1<!SP>, and pistons,
<SP>1</SP>,
connected by a rod motive fluid being alternately admitted to the inner ends
of the cylinders
while the mud is drawn in and forced out of the outer ends. In another form,
the hydraulic hoist
is replaced by a two speed rotary draw-works driven by a Pelton wheel or a
reversible radial-
piston hydraulic motor. Specification 530,050, [Group XXVIII] is referred to.
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Canadian Patent Number CA1,189,387
Inventor: Ernest M. Futros
Issued: June 25, 1985
This invention relates to a reciprocating power drive for a mud pump used in
drilling
wells, which exhibits no stall points. Power is taken from rods connected to
the pistons of an
automotive power steering apparatus, the steering gear now functioning merely
to time the
pistons. Hydraulic power is applied through a steering valve which is driven
by a hydraulic
motor which reverses direction under control of a pilot valve, which switches
automatically when
at least one of the pistons is adjacent its maximum or minimum positions.
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Russian Patent Number RU2,196,253
Inventor: Ja. A. Gluskin
Issued: October 1, 2001
Oil mechanical engineering; centrifugal multi-stage oil-well pumps for pumping
formation fluid. SUBSTANCE: proposed stage of centrifugal oil-well pump
includes guide
apparatus and impeller mounted in this apparatus. Mounted on lower surface of
drive disk are
impeller blades; drive disk is provided with holes found between bases of
blades. Lower edges of
blades are open on side of upper disk of guide apparatus. On periphery part of
upper surface of
impeller drive disk there is shoulder where additional fins of impeller are
located. Holes are
made between axis of rotation of impeller and additional fins of impeller.
Upper surface of
impeller drive disk is located opposite lower disk of guide apparatus of next
stage. Shoulder
formed on peripheral part of lower surface of lower disk of guide apparatus of
said stage is used
for fitting lower fins of lower disk of guide apparatus of next stage. EFFECT:
enhanced
efficiency of crushing gas bubbles and mud inclusions.
While these pumps may be suitable for the purposes for which they were
designed, they
would not be as suitable for the purposes of the present invention, as
hereinafter described.
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SUMMARY OF THE PRESENT INVENTION
The present invention discloses a submersible hydraulic powered pump for
removing
matter such as liquid, abrasive particulate, slurries or mixtures, from a sump
or container. The
pump has a housing with an integral stand projecting therefrom comprised of a
plurality of legs
extending to a base plate that will keep the pump spaced away from the ground
and gauge the
size of matter allowed to enter the pump. Positioned within the housing base
is an ingress
aperture serving as the intake for flowable matter into a chamber having an
impeller assembly
driven by a hydraulically powered motor. The impeller assembly comprises a
plurality of
perforated plates and an impeller plate that allows for the release of trapped
air through the
impeller assembly's apertures at to prevent the buildup of air and unwanted
pressure gaps within
the pumping lines also known as "air lock." Additionally, the impeller plate
and impeller blades
have an increased clearance from the sides of the housing to prevent jamming
of the impeller due
to large particulate matter becoming lodged therebetween during rotation and
also to more
efficiently induce centrifugal motion about the drawn matter contained in the
housing.
A primary object of the present invention is to provide a hydraulic mud pump
that is
submersible.
Another object of the present invention is to provide a hydraulic mud pump
having
multiple perforated plates to allow for expulsion of air.
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Yet another object of the present invention is to provide a hydraulic mud pump
having a
second impeller to protect the seal of the hydraulic motor by pumping solids
away from the shaft
seal.
Still yet another object of the present invention is to provide a hydraulic
mud pump
having a stand portion for elevating the inlet from off the ground to prevent
clogging by large
matter or solid ground.
Another object of the present invention is to provide a hydraulic mud pump
having
spacing between the impeller assembly and housing wall to prevent jamming by
large particulate
therebetween.
Additional objects of the present invention will appear as the description
proceeds.
The present invention overcomes the shortcomings of the prior art by providing
a
hydraulic mud pump having a housing with a stand providing an inlet elevated
away from the
ground whereby fluid material may be drawn to an impeller inside used for
imposing centrifugal
motion to the drawn material while releasing air that may be built up inside
the housing during
this process via it's plurality of perforations to prevent pressure gaps that
could cause "air lock"
throughout the pumping lines. Additionally, the impeller is gapped away from
the housing's side
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to prevent jamming of the impeller by particulate that otherwise would have
been lodged
therebetween..
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The foregoing and other objects and advantages will appear from the
description to
follow. In the description reference is made to the accompanying drawings,
which form a part
hereof, and in which is shown by way of illustration-specific embodiments in
which the
invention may be practiced. These embodiments will be described in sufficient
detail to enable
those skilled in the art to practice the invention, and it is to be understood
that other
embodiments may be utilized and that structural changes may be made without
departing from
the scope of the invention. In the accompanying drawings, like reference
characters designate the
same or similar parts throughout the several views.
The following detailed description is, therefore, not to be taken in a
limiting sense, and
the scope of the present invention is best defined by the appended claims.
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BRIEF DESCRIPTION OF THE DRAWINGS
In order that the invention may be more fully understood, it will now be
described, by
way of example, with reference to the accompanying drawings in which:
Figure I is an illustrative view of the present invention in use.
Figure 2 is a perspective view of the present invention in use.
Figure 3 is a sectional view of the impeller assembly of the present
invention.
Figure 4 is a sectional exploded view of the impeller assembly of the present
invention.
Figure 5 is a sectional view of the present invention.
Figure 6 is a sectional view of the present invention.
Figure 7 is a detailed sectional view of the present invention.
Figure 8 is a detailed sectional view of the present invention.
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LIST OF REFERENCE NUMERALS
With regard to reference numerals used, the following numbering is used
throughout the
drawings.
present invention
12 slurry
14 housing
16 stand
10 18 motor
intake conduit
22 motor mount
24 bolt
26 coupling
15 28 seal
top plate
32 impeller blade
34 perforations
36 openings
20 38 impeller plate
impeller spacer
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42 bolt
44 washer
46 arrow
48 impeller outlet
50 impeller inlet
52 impeller assembly
54 drawn air
56 rock
58 wall
60 spacing
62 hose
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The following discussion describes in detail one embodiment of the invention
(and
several variations of that embodiment). This discussion should not be
construed, however, as
limiting the invention to those particular embodiments since practitioners
skilled in the art will
recognize numerous other embodiments as well. For a definition of the complete
scope of the
invention, the reader is directed to the appended claims.
Turning to Figure 1, shown therein is an illustrative view of the present
invention 10 in
use. Shown is the present invention 10 disclosing a hydraulic mud pump for the
use of well
digging, excavation or the drainage of any sump, having an improved intake
portion specially
assembled for submersion into a liquid or abrasive slurry 12, outfitted with a
perforated impeller
that functions to prevent blockage, jamming "air lock" and enhance flow
through its application
of centrifugal force to the drawn slurry of abrasive particulate.
Additionally, the present
invention 10 has a stand portion protruding from its bottom and around the
inlet to provide ample
clearance between the inlet and sump bottom to prevent blockage of the inlet
by large pieces of
matter. Also shown is hose 62 leading from outlet conduit 20.
Turning to Figure 2, shown therein is a perspective view of the present
invention 10.
Shown is the present invention 10 having a housing 14 that is integral with an
effectively sized
protruding stand portion 16 that provides clearance of the present invention's
impeller inlet 50
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which supplies material to the outlet conduit 20 from a sump's bottom.
Additionally shown is the
present invention 20 having a hydraulic motor 18 attached to the top of the
housing 14 to drive
an impeller assembly housed therein.
Turning to Figure 3, shown therein is a sectional view of the impeller
assembly of the
present invention 10. Shown is the individual parts of the impeller assembly
52 in their
assembled configuration whereby a plurality of perforated plates and spacers
cooperate to form a
hydraulic driven rotatable seal / connection that allows for the release of
trapped air that can
collect in the housing during pumping, to prevent jamming or "air lock." Shown
are motor 18,
motor mount 22, bolt 24, splined coupling 26, seal splasher 28, top plate 30,
impeller blade 32,
perforations 34, openings 36, impeller plate 38, impeller spacer 40, bolt 42
and washer 44.
Turning to Figure 4, shown therein is a sectional exploded view of the
impeller assembly
of the present invention 10. Shown is the individual parts of the impeller
assembly exploded into
their individual parts, including a plurality of perforated plates and spacers
that cooperate to form
a hydraulically driven rotatable seal / connection that allows for the release
of trapped air that can
collect in the housing during pumping, to effectively prevent jamming or an
"air lock"
occurrence. Shown are previously disclosed elements and the direction of air
flow shown by
arrow 46.
Turning to Figure 5, shown therein is a sectional view of the present
invention 10.
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Shown is the present invention 10 having a hollow housing 14 to direct suction
current generated
by the impeller assembly 52 through the outlet 48. Additionally shown is
clearance to the inlet
50 provided by the structure of the housing's stand portion 16. Also shown is
top plate 30.
Turning to Figure 6, shown therein is a sectional view of the present
invention 10.
Shown is the path taken by the liquid or slurry of abrasive particulate drawn
by the present
invention. The drawn matter, e.g., rock 56, is pulled through the raised inlet
50, then into the
housing 14, where it is then agitated and circulated into the outlet 48 via
centripetal force applied
via the impeller assembly 52 with blades 32. Additionally shown is the release
of drawn air 54
into the housing 14 and the directed expulsion of the air at 46 through the
perforations 34 made
through the impeller assembly 52.
Turning to Figure 7, shown therein is a detailed sectional view of the present
invention
10. Shown is the present invention 10 having a plurality of perforations 34
made into the various
plates comprising the impeller assembly to allow the present invention to
expel unwanted drawn
air 54 out the top at 46 of the present invention while in operation, to
prevent the building up of a
pressure gap inside the housing that would other wise cause jamming or "air
lock" of the pump.
Also shown is impeller plate 38.
Turning to Figure 8, shown therein is a detailed sectional view of the present
invention
10. Shown is the present invention 10 having a distinct effectively sized
spacing 60 between the
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ends of the impeller blades 32 and wal158 of the housing 14 to allow for a
larger space between
the components to allow for clearance of larger particulate that may otherwise
seize the impeller.
Also shown is top plate 30 and outlet 48 complementarily sized as the inlet.
26
