CN106930916A - A kind of dynamic shell type multiaction water hydraulic radial plunger pump - Google Patents
A kind of dynamic shell type multiaction water hydraulic radial plunger pump Download PDFInfo
- Publication number
- CN106930916A CN106930916A CN201710278780.XA CN201710278780A CN106930916A CN 106930916 A CN106930916 A CN 106930916A CN 201710278780 A CN201710278780 A CN 201710278780A CN 106930916 A CN106930916 A CN 106930916A
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- Prior art keywords
- plunger
- multiaction
- shell type
- plunger pump
- columnar projections
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Classifications
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- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/047—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the outer ends of the cylinders
- F04B1/0474—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the outer ends of the cylinders with two or more serially arranged radial piston-cylinder units
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- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0421—Cylinders
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
- F04B1/043—Hydraulic arrangements
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0452—Distribution members, e.g. valves
- F04B1/0461—Conical
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/06—Control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of dynamic shell type multiaction water hydraulic radial plunger pump, including cylinder blanket, the radial section of outer casing inner wall is waveform curve, and the two ends of shell are respectively connected by rolling bearing with an end cap, and it is theed improvement is that：Cylinder body is set in shell, disc is installed in cylinder body and the two ends pipeline axle with columnar projections, groove is respectively provided with the columnar projections outer wall at two ends, is communicated by the passage on disk between two grooves, the regulator that additionally setting is stretched out outside adjacent end cap in the cavity.Dynamic shell type multiaction water hydraulic radial plunger pump disclosed in this invention, axial type or horizontal is replaced using radial in structure, by increasing single rotary column plug reciprocating frequency, accelerates plunger motion speed, compensate the volumetric efficiency that slow-speed of revolution lower plunger pump is improved because of the leakage that pressure difference is produced.
Description
Technical field
The invention belongs to the dynamical element field in transmission fluid, the more particularly to a kind of two-way, liquid in the field
The dynamic shell type water hydraulic radial plunger pump of body spring reset, Flat valve.
Background technology
Water Hydraulic Pump is the core component of reverse osmosis seawater desalination system.Current domestic and international researched and developed Water Hydraulic Pump is basic
It is horizontal or axial plunger pump, its minimum permission rotating speed（≥300rpm）Much larger than hydraulic turbine maximum speed（≤100rpm）If,
It is to be directly driven by the hydraulic turbine, Water Hydraulic Pump volumetric efficiency can be caused low, abrasion is violent, it is impossible to the problems such as two-way operation.Therefore,
In conventional reverse osmosis seawater desalination system, generally using speed increasing mechanism, such as gear-box increases to tidal current energy water turbine rotating speed
Water Hydraulic Pump is allowed in the range of speeds, drives hydraulic pump, pumps out water under high pressure, realizes desalinization.This method is not only increased
The volume and weight of reverse osmosis seawater desalination system, and, first, because generally using gear speeder, so disliked in ocean
Under bad working environment, the life-span is low, poor reliability；Second, when the timing of turbine size one, three times of its rotating speed and strength of current
Side is directly proportional, when strength of current changes, it is difficult to ensure that the speed after speedup is in the range of speeds that seawater hydraulic pump is allowed.Turn
When speed is low, the crucial friction pair of seawater hydraulic pump is difficult to form lubricating film, so as to influence the performance of pump, such as efficiency, life-span, reliability
Property etc., or even the output pressure of pump does not reach the requirement of seawater desalination system；When rotating speed exceedes pump permission rotating speed, pumping can be caused
Enter insufficient, service life reduction, or even occur to burn pump phenomenon.
Chinese invention patent application CN105508166A discloses a kind of dynamic shell type air spring radial plunger pump, including
Housing, is provided with the concavo-convex curved profile for seamlessly transitting on the inner surface of the housing；Cylinder body, the cylinder body is arranged at the shell
The inside of body, the cylinder body is internally provided with air-spring bellows, and uniform intervals are provided with plunger in the circumference of the cylinder body
Chamber, the plunger cavity is connected by circular hole with the air-spring bellows, and plunger assembly, the post are provided with the plunger cavity
Plug assembly is slidably arranged in the plunger cavity and is tightly connected with the plunger cavity, and one end of the plunger assembly can be slided
Dynamic being arranged in the circular hole and being tightly connected with the circular hole, and the end face of the other end of the plunger assembly can be along described recessed
Evagination line profile is slided, compressed air suits in the air-spring bellows.Although the plunger displacement pump can directly with the hydraulic turbine
Wheel hub coordinated and can with two-way operation, but（1）Flow mode is axle flow, and suction and extrusion runner are complicated, and pressure is damaged
Lose greatly, hydraulic pump is easily emptied, produce cavitation erosion, cause vibration and noise；（2）Axle flow requirement processing and installation accuracy are high, and difficult
Ensure sealing property, influence Water Hydraulic Pump volumetric efficiency；（3）The easy gas leakage of gas spring resetting-mechanism, reset pressure is difficult to ensure card, surely
Qualitative difference, and, because gas is compressible, the difficult regulation of pressure of gas spring.
The content of the invention
The technical problems to be solved by the invention are just to provide a kind of two-way, liquid spring reset, the dynamic shell of Flat valve
Formula multiaction water hydraulic radial plunger pump.
The present invention is adopted the following technical scheme that：
A kind of dynamic shell type multiaction water hydraulic radial plunger pump, including cylinder blanket, the radial section of outer casing inner wall is ripple
Shape wave curve, the two ends of shell are respectively connected by rolling bearing with an end cap, and it is theed improvement is that：Cylinder is set in shell
Disc is installed in body, cylinder body and the two ends pipeline axle with columnar projections, is respectively provided with the columnar projections outer wall at two ends
Groove, is communicated between two grooves by the passage on disk, and wherein the internal cavities of one end columnar projections pass through the columnar projections
On close on the pipeline of disk and communicated with the groove on its outer wall, the pressure regulation that additionally setting is stretched out outside adjacent end cap in the cavity
Device, is allowed to full of pressure regulation in two grooves and the columnar projections internal cavities communicated with groove to above-mentioned groove injection pressure fluid
Space beyond device forms liquid spring, and the internal cavities of other end columnar projections are then connected to the water outlet that abutting end is covered
Mouthful, it is each in the cylinder body of pipeline axle disk both sides to be circumferentially uniform staggered with quantity identical plunger assembly, plunger assembly work
Top land in chamber installs the release link that plunger, bottom are installed in insertion liquid spring, between release link and liquid spring with
Sealing ring is sealed, and the elastic force of liquid spring is allowed to push against outer casing inner wall in top plunger, is located at by release link and piston effect
The water inlet of plunger assembly working chamber bottom is communicated by unidirectional inlet valve with the water inlet that abutting end is covered, positioned at plunger assembly
The delivery port of working chamber bottom is communicated by one-way release valve with the outlet conduit in pipeline axle disk, outlet conduit then with it is above-mentioned
The columnar projections internal cavities being connected on end cap delivery port are communicated.
Further, described regulator includes stretching out the pressure regulating screw that end cap is outer and is threadedly coupled with cavity inner wall,
Spring base is installed in the front end of the pressure regulating screw, and the spring on spring base is connected with the sealing-plug in cavity.
Further, sealed with O-ring between described sealing-plug and cavity inner wall.
Further, two groups of plunger assemblies of pipeline axle disk both sides do axial symmetry interlaced arrangement.
Further, it is provided with sealing ring between pipeline axle disk and the cylinder body of both sides.
Further, the working media that the plunger displacement pump is used is mineral oil, high water base fluid, pure water or seawater.
The beneficial effects of the invention are as follows：
Dynamic shell type multiaction water hydraulic radial plunger pump disclosed in this invention, replaces axial type using radial in structure
Or it is horizontal, by increasing single rotary column plug reciprocating frequency, accelerate plunger motion speed, the leakage that compensation is produced by pressure difference is carried
The volumetric efficiency of high and low rotating speed lower plunger pump；Dynamic cylinder body type or dynamic inclined disc type is replaced using dynamic shell type on forms of motion, is made
Plunger displacement pump can be placed directly within turbine wheel hub, save machinery speed increasing, electrical power generators, electric power storage/inversion/control, electronic
A series of energy conversions such as machine speed change and storing process, reach simplied system structure, reduces cost, improve the purposes such as efficiency；
Using packet axial symmetry arrangement in plunger arrangement, radial load is eliminated；It is all axial symmetry that plunger is arranged and moves shell, makes plunger displacement pump
Energy two-way operation, preferably meets the requirement of hydraulic turbine condition.In flow mode, using cone valve flow replace axle flow or
Valve plate distribution, processing is simple, leakage is few, and output pressure is high, and sealing property will not fail because of abrasion, it is to avoid axle flow is radially
Pressure is big, there is relative motion between sealing surface, and seal clearance cannot be compensated and disk distributing construction is complicated, and eccentric wear phenomenon is seriously waited and lacked
Point.In plunger return mode, resetted using liquid spring and replace centrifugal force reset/metal spring reset/pump feed flow to reset, by
In plunger for axial symmetry is arranged, it is ensured that the volume and pressure of liquid spring are constant, i.e., constant force resets so that reset rapid, peace
Complete reliable, solving the slow-speed of revolution cannot be resetted using centrifugal force, the failure of metal spring fatiguability, and feed flow reset system complex etc. is asked
Topic.
Dynamic shell type multiaction water hydraulic radial plunger pump disclosed in this invention, can act on pressure by regulator
Power liquid is adjusting the elastic force of liquid spring.Two groups of plunger assemblies mutually stagger and make axial symmetry arrangement, make its suffered hydraulic coupling, from
Mental and physical efforts, inertia force are equal in magnitude, eliminate radial load.
Dynamic shell type multiaction water hydraulic radial plunger pump disclosed in this invention, overcomes traditional plunger reset mode knot
Structure size is big, the problem of system complex, and volumetric efficiency is low when solving low speed, frictional resistance is big between crucial friction pair, material
Abrasion aggravation, cannot two-way operation the problems such as, processing is simple, and leakage is few, and output pressure is high, is resetted using liquid spring, resets
It is rapid and safe and reliable.
Brief description of the drawings
Fig. 1 is that the internal structure of the dynamic shell type multiaction water hydraulic radial plunger pump disclosed in the embodiment of the present invention 1 is shown
It is intended to；
Fig. 2 is the radial cross-section of the dynamic shell type multiaction water hydraulic radial plunger pump disclosed in the embodiment of the present invention 1；
Fig. 3 is the structure of the dynamic shell type multiaction water hydraulic radial plunger pump enclosure part disclosed in the embodiment of the present invention 1
Schematic diagram；
Fig. 4 is that the shape of the pipeline axle of the dynamic shell type multiaction water hydraulic radial plunger pump disclosed in the embodiment of the present invention 1 is shown
It is intended to.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1, as Figure 1-4, present embodiment discloses a kind of dynamic shell type multiaction water hydraulic radial plunger pump,
Including cylinder blanket 1, the radial section of outer casing inner wall is waveform curve, and the two ends of shell respectively pass through rolling bearing 2 and
End cap 3 is connected, and to be set in shell and install disc in cylinder body 4, cylinder body and the two ends pipeline axle 5 with columnar projections 51,
Groove 511 is respectively provided with the outer wall of columnar projections 51 at two ends, is communicated by the passage 521 on disk 52 between two grooves, its
The internal cavities of middle one end columnar projections are by closing on the groove phase on the pipeline 512 of disk and its outer wall in the columnar projections
Logical, the regulator 6 that additionally setting is stretched out outside adjacent end cap in cavity is allowed to be full of to above-mentioned groove injection pressure fluid
Space in two grooves and the columnar projections internal cavities communicated with groove beyond regulator forms liquid spring 10, the other end
The internal cavities of columnar projections are then connected to the delivery port 7 that abutting end is covered, each along week in the cylinder body of pipeline axle disk both sides
To quantity identical plunger assembly 8 is uniform staggered with, plunger 83, bottom is installed at the top of piston 82 in the plunger assembly working chamber 81
Release link 84 in insertion liquid spring is installed, is sealed with sealing ring 85 between release link and liquid spring, make in liquid spring
Pressure fluid may not flow into the working chamber 81 of plunger assembly, the elastic force of liquid spring is acted on by release link 84 and piston 82
Top plunger 83 is allowed to push against outer casing inner wall, and the water inlet positioned at the bottom of plunger assembly working chamber 81 passes through unidirectional inlet valve 811
The water inlet 9 covered with abutting end is communicated, and the delivery port positioned at plunger assembly working chamber bottom is by one-way release valve 812 and pipe
Outlet conduit 522 in road axle disk 52 is communicated, outlet conduit then with the above-mentioned columnar projections being connected on end cap delivery port in
Portion's cavity is communicated.
Alternatively, in the present embodiment, as shown in figure 3, described regulator 6 includes stretching out
Spring base 62 is installed in the pressure regulating screw 61 being threadedly coupled outside end cap and with cavity inner wall, the front end of the pressure regulating screw, on spring base
Spring 63 be connected with the sealing-plug 64 in cavity.Sealed with O-ring 65 between described sealing-plug and cavity inner wall.Rotation
Pressure regulating screw can be by spring jam-packed or release sealing-plug, to be pressurizeed to pressure fluid or to be depressurized, so as to adjust liquid
The elastic force of body spring.
Alternatively, in the present embodiment, two groups of plunger assemblies of pipeline axle disk both sides do axle
Symmetrical interlaced arrangement.Sealing ring is provided between pipeline axle disk and the cylinder body of both sides.The work that the plunger displacement pump is used is situated between
Matter is mineral oil, high water base fluid, pure water or seawater.
The course of work of the dynamic shell type multiaction water hydraulic radial plunger pump disclosed in the present embodiment is：By plunger displacement pump
Working media is sunk to after the wheel hub of the shell loading hydraulic turbine（Mineral oil, high water base fluid, pure water or seawater）In, when shell is in water
When being rotated under the drive of turbine（Both can be to rotate clockwise, or rotate counterclockwise）, the waveform song of outer casing inner wall
Line also synchronous axial system, in the process due to the effect of liquid spring elastic force, the sunk part with inwall waveform curve is relative
The release link of each plunger assembly answered can rise so that the plunger of top land can continue push against outer casing inner wall, in release link move
Increase the volume of working chamber, working media is entered work through unidirectional inlet valve by the water inlet on the end cap of two ends
Chamber, completes imbibition process.The release link of each plunger assembly corresponding with the bossing of inwall waveform curve can be in Qi Ding
Moved down under the extruding of portion's plunger and piston, release link is moved down reduces the volume of working chamber, make the working media in working chamber can
With the outlet conduit entered in pipeline axle disk by one-way release valve, then the water outlet through columnar projections internal cavities from end cap
Mouth outflow, completes discharge opeing process.The depression of waveform curve and raised cycle alternation make the periodic imbibition of each plunger assembly and
Discharge opeing, in the process, unidirectional inlet valve and one-way release valve can ensure the directed flow of working media, i.e. working media from
Water inlet on the end cap of two ends is flowed into, through outlet conduit and columnar projections in the working chamber of each plunger assembly, pipeline axle disk
Delivery port outflow of the internal cavities from the end cap of one end, so as to complete the course of work of plunger displacement pump.If it is desired, in the course of work
In can act on pressure fluid by regulator to adjust the elastic force of liquid spring.
Claims (6)
1. a kind of dynamic shell type multiaction water hydraulic radial plunger pump, including cylinder blanket, the radial section of outer casing inner wall is
Waveform curve, the two ends of shell are respectively connected by rolling bearing with an end cap, it is characterised in that：Cylinder body is set in shell,
Disc is installed in cylinder body and the two ends pipeline axle with columnar projections, is respectively provided with the columnar projections outer wall at two ends recessed
Groove, is communicated between two grooves by the passage on disk, and wherein the internal cavities of one end columnar projections are by the columnar projections
The pipeline for closing on disk is communicated with the groove on its outer wall, the pressure regulation dress that additionally setting is stretched out outside adjacent end cap in the cavity
Put, pressure regulation is filled in being allowed to the columnar projections internal cavities communicated full of two grooves and with groove to above-mentioned groove injection pressure fluid
Space beyond putting forms liquid spring, and the internal cavities of other end columnar projections are then connected to the delivery port that abutting end is covered,
Quantity identical plunger assembly is circumferentially respectively uniform staggered with the cylinder body of pipeline axle disk both sides, in the plunger assembly working chamber
Top land install plunger, bottom install insertion liquid spring in release link, between release link and liquid spring with seal
Circle sealing, the elastic force of liquid spring is allowed to push against outer casing inner wall by release link and piston effect in top plunger, positioned at plunger
The water inlet in component operation bottom of chamber portion is communicated by unidirectional inlet valve with the water inlet that abutting end is covered, positioned at plunger assembly work
The delivery port in bottom of chamber portion is communicated by one-way release valve with the outlet conduit in pipeline axle disk, outlet conduit then with above-mentioned connection
Columnar projections internal cavities on to end cap delivery port are communicated.
2. dynamic shell type multiaction water hydraulic radial plunger pump according to claim 1, it is characterised in that：Described pressure regulation
Device includes stretching out the pressure regulating screw that end cap is outer and is threadedly coupled with cavity inner wall, and spring base is installed in the front end of the pressure regulating screw,
Spring on spring base is connected with the sealing-plug in cavity.
3. dynamic shell type multiaction water hydraulic radial plunger pump according to claim 2, it is characterised in that：Described sealing
Sealed with O-ring between plug and cavity inner wall.
4. dynamic shell type multiaction water hydraulic radial plunger pump according to claim 1, it is characterised in that：Pipeline axle disk
Two groups of plunger assemblies of both sides do axial symmetry interlaced arrangement.
5. dynamic shell type multiaction water hydraulic radial plunger pump according to claim 1, it is characterised in that：Pipeline axle disk
Sealing ring is provided with and the cylinder body of both sides between.
6. dynamic shell type multiaction water hydraulic radial plunger pump according to claim 1, it is characterised in that：The plunger displacement pump institute
The working media for using is mineral oil, high water base fluid, pure water or seawater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710278780.XA CN106930916B (en) | 2017-04-25 | 2017-04-25 | A kind of dynamic shell type multiaction water hydraulic radial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710278780.XA CN106930916B (en) | 2017-04-25 | 2017-04-25 | A kind of dynamic shell type multiaction water hydraulic radial plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106930916A true CN106930916A (en) | 2017-07-07 |
| CN106930916B CN106930916B (en) | 2019-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710278780.XA Active CN106930916B (en) | 2017-04-25 | 2017-04-25 | A kind of dynamic shell type multiaction water hydraulic radial plunger pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN106930916B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108903859A (en) * | 2018-07-19 | 2018-11-30 | 天津裕隆鑫源科技有限公司 | A kind of spraying barre hand-held floor-cleaning machine |
| CN109707601A (en) * | 2019-01-25 | 2019-05-03 | 邹昌红 | A kind of diaphragm booster pump of multiple adjusting |
| CN110307133A (en) * | 2019-07-10 | 2019-10-08 | 燕山大学 | A kind of multiple-action inner curved radial-piston motor fluid pump |
| CN110640115A (en) * | 2019-10-31 | 2020-01-03 | 曹晓东 | Plunger pump rotor forming process |
| CN111878340A (en) * | 2020-08-04 | 2020-11-03 | 赣州市闻誉科技有限公司 | Booster-type miniature domestic water pump |
| EP3737871A4 (en) * | 2018-01-14 | 2021-11-10 | B.C. Bike | Hydraulic rotation assembly and method |
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| CN103233873A (en) * | 2013-04-18 | 2013-08-07 | 西安交通大学 | External-rotor radial plunger hydraulic pump integrated with motors |
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| CN206738095U (en) * | 2017-04-25 | 2017-12-12 | 中国海洋大学 | A kind of dynamic shell type multiaction water hydraulic radial plunger pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3737871A4 (en) * | 2018-01-14 | 2021-11-10 | B.C. Bike | Hydraulic rotation assembly and method |
| CN108903859A (en) * | 2018-07-19 | 2018-11-30 | 天津裕隆鑫源科技有限公司 | A kind of spraying barre hand-held floor-cleaning machine |
| CN109707601A (en) * | 2019-01-25 | 2019-05-03 | 邹昌红 | A kind of diaphragm booster pump of multiple adjusting |
| CN109707601B (en) * | 2019-01-25 | 2024-04-12 | 邹昌红 | Diaphragm booster pump of multiple regulation |
| CN110307133A (en) * | 2019-07-10 | 2019-10-08 | 燕山大学 | A kind of multiple-action inner curved radial-piston motor fluid pump |
| CN110640115A (en) * | 2019-10-31 | 2020-01-03 | 曹晓东 | Plunger pump rotor forming process |
| CN110640115B (en) * | 2019-10-31 | 2021-11-02 | 深圳市澳托士液压机械有限公司 | Plunger pump rotor forming process |
| CN111878340A (en) * | 2020-08-04 | 2020-11-03 | 赣州市闻誉科技有限公司 | Booster-type miniature domestic water pump |
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| Publication number | Publication date |
|---|---|
| CN106930916B (en) | 2019-03-15 |
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