CN106121947A - The power end component of a kind of reciprocating pump and use the multi-cylinder reciprocating pump of this assembly - Google Patents
The power end component of a kind of reciprocating pump and use the multi-cylinder reciprocating pump of this assembly Download PDFInfo
- Publication number
- CN106121947A CN106121947A CN201610521030.6A CN201610521030A CN106121947A CN 106121947 A CN106121947 A CN 106121947A CN 201610521030 A CN201610521030 A CN 201610521030A CN 106121947 A CN106121947 A CN 106121947A
- Authority
- CN
- China
- Prior art keywords
- pulling plate
- power end
- reciprocating pump
- end component
- plunger rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
Abstract
The power end component that the present invention relates to a kind of reciprocating pump and the multi-cylinder reciprocating pump using this assembly, described power end component comprises the bent axle that can rotate under external actuating unit effect, it is cased with rolling bearing outside the eccentric shaft of bent axle, rolling bearing is externally provided with ring set, ring set is fixedly arranged above pulling plate, fixing lower pulling plate below ring set, and the inner side of upper pulling plate and lower pulling plate is all assemblied in outside rolling bearing, ring set is externally provided with slide block, and the plunger rod inner tip of reciprocating pump offsets with slide block；Upper pulling plate and lower pulling plate are respectively equipped with upper groove and low groove, and the position that plunger rod is corresponding is provided with lower keeper between being respectively equipped with in locating slot and lower locating slot, low groove and lower locating slot.Upper pulling plate, lower pulling plate, public power when rotating the frictional force by rolling bearing and plunger rod reciprocating motion of ring set carry out rotation, and speed is very slow, and this just makes the noise and vibration of motion lower, operational efficiency improves.Use the multi-cylinder reciprocating pump compact conformation of this assembly, fabricating yard is required low.
Description
Technical field
The present invention relates to a kind of reciprocating pump structure, the power end component and the employing that particularly relate to a kind of reciprocating pump should
The multi-cylinder reciprocating pump of assembly.
Background technology
General horizontal reciprocating pump hydraulic-end is in the front of power end, and vertical reciprocation pump power end is in the lower section of fluid end, bent
Axle acting is the most only a fluid end service, and the reciprocating plunger pump of this structure is installed limited by the field.Back and forth
Formula plunger displacement pump efficiency is higher than efficiency of centrifugal pump, gradually instead of the position of centrifugal pump in water supply field, but due to reciprocating type plunger
Pump position dimension and inadaptability in structure field requirement, it is impossible to be applicable to high-rise building water system.It is people that building supply water
With, industrial multi-field high rise building water supply Energy-saving Projects, it also it is the huge engineering of a popularization amount simultaneously.Reciprocating plunger pump
Operational efficiency ＞ 88%, and the efficiency of the multistage water supply pump of rotary and centrifugal type typically up in 75% actual application up to
65%, the two is energy-conservation differs greatly, and especially the building number of plies is more than 60 layers, typically arranges a pump transfer at middle (30 layers)
Standing, now, the efficiency of centrifugal pump can be lower.It is the most much of that, because of reciprocating type plunger that reciprocating plunger pump arranges a pumping plant on ground
Pump is displacement pump, so pressure is mutually non-interference with flow, and both of which can be realized by VFC, by electrodeless tune
Speed variator needs how much water for how much water.In the overall situation currently drive in 13 these innovations, saved energy and reduce the cost, innovation optimizes
The structure of reciprocating plunger pump, makes its position dimension and structure more adapt to field requirement, thus is popularized and applied to high-rise building
Space, it is achieved the purpose of innovative energy-saving.
Existing reciprocating plunger pump power end piston reciprocation structure mostly is by spring reset or is retracted by rotary disk.Use
The reciprocating plunger structure of spring reset is after repeatedly moving back and forth, and spring is the most tired, and the life-span is short, and elastic force is limited, the most just
Need often to be replaced maintenance.Rotary disk retracts this reciprocating plunger structure and passes through to install rolling bearing on plunger rod, returns
There is rolling bearing in turntable periphery circle residence, and rotary disk rotates thus retracts plunger, and when motion, multiple rolling bearings rotate simultaneously,
Noise is big, can be efficiently converted into reciprocating energy low, it is impossible to well reach energy-conservation purpose simultaneously.
Chinese invention patent such as Patent No. ZL201010208353.2 (notification number is CN101876302B) is " a kind of
Multi throw reciprocating pump " disclose such a and utilize rotary disk rolling bearing high speed rotating to retract the reciprocating plunger structure of plunger rod,
In this patent document, utilize main eccentric to release guide post, utilize secondary eccentric to retract guide post, if main eccentric is with secondary
During eccentric rotating speed difference, guide post will collide with secondary eccentric back and forth, can produce the biggest noise, guide during work
The reciprocating motion of bar needs main eccentric to coordinate with secondary eccentric, and operational efficiency is relatively low, still has the space of improvement to this.
Summary of the invention
To be solved by this invention primarily technical problem is that provides a kind of compact conformation for above-mentioned prior art present situation,
Energy-saving and cost-reducing, the power end component of the reciprocating pump that noise is little.
It is reciprocal that the further technical problem to be solved of the present invention is to provide a kind of multi-cylinder using above-mentioned power end component
Plunger displacement pump.
The present invention solves the technical scheme that above-mentioned primary technical problem used: a kind of reciprocating plunger pump power end group
Part, for being connected with the plunger rod of reciprocating pump, drives plunger rod to move reciprocatingly, it is characterised in that: described power end group
Part comprises the bent axle that can rotate under external actuating unit effect, is cased with rolling bearing, the axis of rolling outside the eccentric shaft of described bent axle
Holding and be externally provided with ring set, ring set is fixedly arranged above pulling plate, and fixing lower pulling plate below ring set, the inner side of upper pulling plate and lower pulling plate all fills
Fitting over outside rolling bearing, ring set is externally provided with slide block, and the plunger rod inner tip of reciprocating pump offsets with slide block；Described upper pulling plate
Downside be provided with upper groove, the position that the plunger rod of reciprocating pump is corresponding is provided with locating slot, upper groove and upper locating slot
Keeper it is provided with between Nei；The upper side of described lower pulling plate is provided with low groove, the portion that the plunger rod of reciprocating pump is corresponding
Position is provided with lower keeper between being provided with in lower locating slot, low groove and lower locating slot.
As improvement, described upper groove, upper locating slot, low groove are inner chamber with lower locating slot and become hemispheric annular
Groove, described upper keeper and lower keeper are metal balls.Ball shape keeper frictional resistance is little, is reducing heat production, noise reduction
Aspect all shows excellence.
Improve again, between described upper keeper and upper groove, be provided with ball sleeve；Between described lower keeper and low groove
It is provided with lower ball sleeve.Ball sleeve, through special PROCESS FOR TREATMENT, can make the frictional resistance between ball and ball sleeve less, rolling
Pearl rolls more flexible.
Improve again, described upper pulling plate, lower pulling plate, slide block all have oilhole.By oilhole, it is each that lubricating oil covers plunger rod
Individual movable part, reduces friction, reduces noise.
Improve again, described bent axle outer rolling bearing be arranged above balancing frame, balancing frame upper end is provided with oil storage tank, balance
The centrage of dish turns as bias with the axle of set rolling bearing.Can be as balancing disk when balancing frame and bent axle do dynamic balancing.
Improving, also include columned fuselage, the center of fuselage is provided with the perforation allowing bent axle to pass, and bent axle is located in
In the perforation at fuselage center, back is connected with support, and the slide block quantity that ring set is externally provided with is N number of, and N is more than or equal to 2 certainly
So number.
Improving, be provided with center oilhole in described bent axle, described bent axle lower end is equipped with spindle, and immerses equipped with lubricating oil
Fuel tank in, fuel tank is arranged on below fuselage, and spindle cylindrical is equipped with spiral fuel feeding shape line, and when spindle rotates, lubricating oil is sucked up
The center oilhole of bent axle is supplied to the crepe cord of spindle.When rotating shaft rotates, lubricating oil is sucked up the crepe cord to rotating shaft
The center oilhole of interior supply bent axle, is lubricated movement parts.
The present invention solves the technical scheme that above-mentioned further technical problem used: a kind of multi-cylinder reciprocating pump, bag
Including power end component and fluid end assembly, described power end component uses power end structure as described above, described fluid end
Assembly includes N number of, is respectively assembled at the excircle of power end component fuselage, and N is more than or equal to 2 natural numbers.N is fluid end group
The number of part, can arrange applicable fluid end number according to actual needs.
Improving, described fluid end assembly comprises the pump housing, valve group, plunger rod again, is provided with plunger channel in the pump housing, and plunger rod is lived
Moving and be arranged in plunger channel, be additionally provided with the apocenosis passage connected with plunger channel in the pump housing, valve group is arranged in apocenosis passage,
The inner tip convex spherical shape of described plunger rod, on the slide block concave spherical surface of power end component coordinate can in the range of slide
Dynamic, plunger rod carries out 360 ° of slips under the location of upper keeper and lower keeper.
Finally improve, in the described pump housing, be provided with incoming-stream manifold and discharge opeing manifold.
Compared with prior art, advantages of the present invention exists: under being promoted by bent axle, pulling plate is done and back and forth advanced action, and then band
When dynamic plunger stem moves reciprocatingly, this design can reduce energy consumption, arrives energy-saving and cost-reducing purpose；By ball engagement plunger
Bar and up and down pulling plate, control the range of movement of the interior end motion of plunger rod, reduces the collision between plunger rod and upper and lower pulling plate, can have
The noise that effect produces when reducing work；Plunger rod moves back and forth the synchronized movement with bent axle, by slide block, upper pulling plate and lower pulling plate
I.e. can release plunger rod and can retract again plunger rod, it is not necessary to other springs or rotary disk, structure is compacter, and noise is low,
Efficiency is high；Using the multi-cylinder reciprocating pump of this Power Component, the efficiency of pump is high, can be pacified by the driving means of power end such as motor
Being contained in above power end, fluid end is centered around around power end, and whole pump body structure is compact, and operating noise is little.
Accompanying drawing explanation
Fig. 1 is the structural representation of multi-cylinder reciprocating pump in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
The power end component of reciprocating pump as shown in Figure 1, for being connected with the plunger rod 3A of reciprocating pump, drives
Plunger rod 3A moves reciprocatingly, and described power end component comprises columned fuselage 1, can rotate under external actuating unit effect
Bent axle 6, the center of fuselage 1 is provided with and allows the perforation that passes of bent axle 6, and bent axle 6 is located in the perforation at fuselage 1 center, fuselage 1
Top is connected with support 2；Being provided with center oilhole in bent axle 6, described bent axle 6 lower end is equipped with spindle 7, and immerses equipped with lubricating oil
Fuel tank 15 in, fuel tank 15 is arranged on below fuselage 1, spindle 7 cylindrical equipped with spiral fuel feeding shape line, when spindle 7 rotates lubricate
Oil is sucked up the center oilhole supplying bent axle to the crepe cord of spindle 7；It is cased with the axis of rolling outside the eccentric shaft 61 of described bent axle 6
Holding 17, rolling bearing 17 is externally provided with ring set 20, and ring set 20 is fixedly arranged above pulling plate 26, fixing lower pulling plate 18 below ring set 20,
The inner side of upper pulling plate 26 and lower pulling plate 18 is all assemblied in outside rolling bearing 17, and ring set 20 is externally provided with slide block 21, reciprocating pump
Plunger rod 3A inner tip offsets with slide block 21；Described upper pulling plate 2) downside be provided with upper groove, the plunger of reciprocating pump
Position corresponding for bar 3A is provided with keeper between being provided with in locating slot, upper groove and upper locating slot；Described lower pulling plate 18
Upper side be provided with low groove, the position corresponding for plunger rod 3A of reciprocating pump is provided with lower locating slot, low groove and lower location
It is provided with lower keeper between in groove.
In the present embodiment, described upper groove, upper locating slot, low groove are inner chamber with lower locating slot and become hemispheric annular
Groove, described upper keeper and lower keeper are metal balls 24, are provided with ball sleeve 25 between upper keeper and upper groove；Institute
State and between lower keeper and low groove, be provided with lower ball sleeve 19.Oil is all had on described upper pulling plate 26, lower pulling plate 18, slide block 21
Hole.Described bent axle 6 outer rolling bearing 17 be arranged above balancing frame 31, balancing frame 31 upper end is provided with oil storage tank, balancing frame 31
Centrage with set rolling bearing 17 axle turn as bias.
In the present embodiment, the top of fuselage is connected with support, middle and fluid end interface position, and guarantees liquid equipped with sliding sleeve
Guiding when the plunger rod of power end runs, bottom is base, and on the basis of can being fixed on, the top and the bottom of fuselage all can be equipped with bent axle two end
The bearing cap of location.The cylindrical of fuselage can require to be respectively mounted N number of fluid end according to cylinder number；Slide block 21 number that ring set 20 is externally provided with
Amount is for N number of, and N is more than or equal to 2 natural numbers.
The multi-cylinder reciprocating pump that the present embodiment provides, see also shown in Fig. 1, including power end component and fluid end group
Part, described power end component uses the power end component structure of foregoing description, and described fluid end assembly includes N number of, fills respectively
Fitting over the excircle of power end component fuselage 1, N is more than or equal to 2 natural numbers.Actuating unit uses motor 3.
Described fluid end assembly comprises pump housing 1A, valve group 2A, plunger rod 3A, is provided with plunger channel, plunger rod in pump housing 1A
3A is movably arranged in plunger channel, is additionally provided with the apocenosis passage connected with plunger channel in pump housing 1A, and valve group 2A is arranged on row
In liquid passage, the inner tip convex spherical shape of described plunger rod 3A, on slide block 21 concave spherical surface coordinate can in the range of carry out
Sliding, plunger rod 3A carries out 360 ° of slips under the location of upper keeper and lower keeper；Incoming-stream manifold 14A it is provided with in pump housing 1A
With discharge opeing manifold 12A.
When motor 3 rotates, band dynamic crankshaft 6 rotates, and eccentric shaft 61 and then rotates together with, and is set in outside eccentric shaft 61
Rolling bearing 17 inner ring also and then rotates, and then band moving ring sleeve 20 and upper pulling plate 26 and lower pulling plate 18 together rotate, upper pulling plate 26,
Lower pulling plate 18, rotation and asynchronous turn of the bent axle 6 of ring set 20, the rotating speed of bent axle 6 rolling bearing 17 and motor in synchrony, ring set 20,
There is turnbuckle to carry out on periphery between upper pulling plate 26, lower pulling plate 18 to fasten and do not allow axle loosen, when bent axle 6 rotates, by rolling
The frictional force band moving ring sleeve 20 of dynamic bearing 17 rotates, now plunger rod 3A reciprocating time produce component make pulling plate 26,
Lower pulling plate 18 and ring set 20 carry out rotation, and the slide block 21 in the outside being attached to ring set 20 does not turns, and carries out micro-with the sphere of plunger rod 3A
Swinging, upper and lower two metal balls 24 are positioned in the concave ball surfaces of plunger rod 3A, can make rotation, upper ball sleeve 25, lower ball
Set 19 be spherical arrangement upper pulling plate 26, lower pulling plate 18 half slot in rotary movable, when bent axle 6 rotates, upper pulling plate 26,
Lower pulling plate 18, ring set 20 carry out rotation, slide block 21, upper ball sleeve 25, lower ball sleeve 19, can when plunger rod 3A moves back and forth with
Step motion, ibid pulling plate 26, lower pulling plate 18, ring set 20 are friction duplicate.Ball is limited in upper groove and low groove, limits
The circumferential movement of plunger rod 3A, moves before and after only doing axially.Plunger rod 3A is released by the slide block 21 of 0 ° of position, 180 ° of positions
Upper pulling plate 26 and lower pulling plate 18 the plunger rod 3A of 180 ° of positions is retracted simultaneously.
Upper pulling plate 26, lower pulling plate 18, rotating of ring set 20 lean on the frictional force of rolling bearing 17 and plunger rod 3A to move back and forth
Time public power carry out rotation, speed is very slow, and this just makes the noise and vibration of motion lower, operational efficiency raising.
When the plunger rod 3A in 0 ° of orientation is toward extrapolation, the liquid feed valve of valve group 2A is closed, and tapping valve is opened, and medium is discharged and passed through pump
The inner flow passage of body 1A enters discharge pipe 12A and discharges, and completes a discharge process；Meanwhile, the plunger rod 3A in 180 ° of orientation is inside
Drawing, the liquid valve of valve group 2A is closed, and liquid feed valve is opened, and medium completes a suction in entering into pump housing 1A by incoming-stream manifold 14A
Enter process.Along with the rotation of bent axle 6, plunger rod 3A can inside and outside move back and forth, and suction medium discharge medium so circulates and carries out, i.e.
When a plunger suction process another root plunger the most diametrically is discharge process.Such as, six cylinders are three plungers
Being suction process, three plungers of radial symmetric are discharge processes therewith.
Claims (10)
1. a power end component for reciprocating pump, for being connected with the plunger rod (3A) of reciprocating pump, drives plunger rod
(3A) move reciprocatingly, it is characterised in that: described power end component comprises the bent axle that can rotate under external actuating unit effect
(6), being cased with rolling bearing (17) outside the eccentric shaft (61) of described bent axle (6), rolling bearing (17) is externally provided with ring set (20), ring set
(20) pulling plate (26), pulling plate (18) under ring set (20) lower section is fixing, upper pulling plate (26) and lower pulling plate (18) it are fixedly arranged above
Inner side is all assemblied in rolling bearing (17) outward, and ring set (20) is externally provided with slide block (21), and the plunger rod (3A) of reciprocating pump is internal
Top offsets with slide block (21)；The downside of described upper pulling plate (26) is provided with upper groove, and the plunger rod (3A) of reciprocating pump is right
The position answered is provided with keeper between being provided with in locating slot, upper groove and upper locating slot；Described lower pulling plate (18) upper
Side is provided with low groove, and the position that the plunger rod (3A) of reciprocating pump is corresponding is provided with lower locating slot, low groove and lower locating slot
Lower keeper it is provided with between Nei.
Power end component the most according to claim 1, it is characterised in that: described upper groove, upper locating slot, low groove and under
Locating slot is inner chamber and becomes hemispheric cannelure, described upper keeper and lower keeper to be metal balls (24).
Power end component the most according to claim 2, it is characterised in that: it is provided with between described upper keeper and upper groove
Ball sleeve (25)；Lower ball sleeve (19) it is provided with between described lower keeper and low groove.
Power end component the most according to claim 3, it is characterised in that: described upper pulling plate (26), lower pulling plate (18), slide block
(21) oilhole is all had on.
Power end component the most according to claim 1, it is characterised in that: described bent axle (6) outer rolling bearing (17) upper
Side is provided with balancing frame (31), and balancing frame (31) upper end is provided with oil storage tank, the centrage of balancing frame (31) and set rolling bearing
(17) axle turns as bias.
Power end component the most according to claim 1, it is characterised in that: also include columned fuselage (1), fuselage (1)
Center be provided with and allow bent axle (6) perforation that passes, bent axle (6) is located in the perforation at fuselage (1) center, fuselage (1) top
Being connected with support (2), slide block (21) quantity that ring set (20) is externally provided with is N number of, and N is more than or equal to 2 natural numbers.
Power end component the most according to claim 6, it is characterised in that: it is provided with center oilhole in described bent axle (6), described
Bent axle (6) lower end is equipped with spindle (7), and immerses in the fuel tank (15) equipped with lubricating oil, and fuel tank (15) is arranged under fuselage (1)
Side, spindle (7) cylindrical is equipped with spiral fuel feeding shape line, and when spindle (7) rotates, lubricating oil is sucked up the crepe cord to spindle (7)
The center oilhole of interior supply bent axle.
8. a multi-cylinder reciprocating pump, including power end component and fluid end assembly, it is characterised in that: described power end component
Using structure as claimed in claim 7, described fluid end assembly includes N number of, is respectively assembled at power end component fuselage (1)
Excircle, N is more than or equal to 2 natural numbers.
Multi-cylinder reciprocating pump the most according to claim 8, it is characterised in that: described fluid end assembly comprises the pump housing
(1A), valve group (2A), plunger rod (3A), be provided with plunger channel in the pump housing (1A), plunger rod (3A) is movably arranged on plunger channel
In, it being additionally provided with the apocenosis passage connected with plunger channel in the pump housing (1A), valve group (2A) is arranged in apocenosis passage, described plunger
The inner tip convex spherical shape of bar (3A), on the slide block concave spherical surface of power end component coordinate can in the range of slide,
Plunger rod (3A) carries out 360 ° of slips under the location of upper keeper and lower keeper.
Multi-cylinder reciprocating pump the most according to claim 9, it is characterised in that: it is provided with feed liquor in the described pump housing (1A)
Manifold (14A) and discharge opeing manifold (12A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521030.6A CN106121947B (en) | 2016-07-05 | 2016-07-05 | A kind of power end component of reciprocating pump and the multi-cylinder reciprocating pump using the component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521030.6A CN106121947B (en) | 2016-07-05 | 2016-07-05 | A kind of power end component of reciprocating pump and the multi-cylinder reciprocating pump using the component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106121947A true CN106121947A (en) | 2016-11-16 |
| CN106121947B CN106121947B (en) | 2018-01-30 |
Family
ID=57469126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610521030.6A Active CN106121947B (en) | 2016-07-05 | 2016-07-05 | A kind of power end component of reciprocating pump and the multi-cylinder reciprocating pump using the component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106121947B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561286A (en) * | 2018-03-14 | 2018-09-21 | 宁波合力机泵股份有限公司 | A kind of oil field water injection wellhead individual well direct-filling type augmented injection pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08200235A (en) * | 1995-01-27 | 1996-08-06 | Jidosha Denki Kogyo Co Ltd | Oil hydraulic pump |
| US6116146A (en) * | 1994-12-09 | 2000-09-12 | Itt Manufacturing Enterprises, Inc. | Radial piston machine |
| US20090097991A1 (en) * | 2007-10-12 | 2009-04-16 | Rosu Cristian A | Fuel pump |
| CN101876302A (en) * | 2010-06-23 | 2010-11-03 | 宁波运星机械制造有限公司 | Multi-cylinder reciprocating pump |
| CN105715473A (en) * | 2016-04-01 | 2016-06-29 | 郑州科技学院 | Multi-cylinder high-pressure radial plunger pump |
| CN205744325U (en) * | 2016-07-05 | 2016-11-30 | 宁波合力机泵股份有限公司 | The power end component of a kind of reciprocating pump and multi-cylinder reciprocating pump |
-
2016
- 2016-07-05 CN CN201610521030.6A patent/CN106121947B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116146A (en) * | 1994-12-09 | 2000-09-12 | Itt Manufacturing Enterprises, Inc. | Radial piston machine |
| JPH08200235A (en) * | 1995-01-27 | 1996-08-06 | Jidosha Denki Kogyo Co Ltd | Oil hydraulic pump |
| US20090097991A1 (en) * | 2007-10-12 | 2009-04-16 | Rosu Cristian A | Fuel pump |
| CN101876302A (en) * | 2010-06-23 | 2010-11-03 | 宁波运星机械制造有限公司 | Multi-cylinder reciprocating pump |
| CN105715473A (en) * | 2016-04-01 | 2016-06-29 | 郑州科技学院 | Multi-cylinder high-pressure radial plunger pump |
| CN205744325U (en) * | 2016-07-05 | 2016-11-30 | 宁波合力机泵股份有限公司 | The power end component of a kind of reciprocating pump and multi-cylinder reciprocating pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561286A (en) * | 2018-03-14 | 2018-09-21 | 宁波合力机泵股份有限公司 | A kind of oil field water injection wellhead individual well direct-filling type augmented injection pump |
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| Publication number | Publication date |
|---|---|
| CN106121947B (en) | 2018-01-30 |
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