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CN108278186B - A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission - Google Patents

A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission Download PDF

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Publication number
CN108278186B
CN108278186B CN201711476990.6A CN201711476990A CN108278186B CN 108278186 B CN108278186 B CN 108278186B CN 201711476990 A CN201711476990 A CN 201711476990A CN 108278186 B CN108278186 B CN 108278186B
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China
Prior art keywords
pump
space cam
cam
space
core
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CN201711476990.6A
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CN108278186A (en
Inventor
邢彤
阮健
王勇
虞儒敏
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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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
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2014—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
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/128—Driving means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission, including front pump shell, rear pump shell and the pump in middle section main body, the front pump shell, rear pump shell are connect with pump main body, pump shaft is mounted on front pump cover, and the power of input is passed to space cam/cone roller transmission mechanism by lever body by pump shaft；Pumping main body includes the pump housing, pump block, concentric ring, pump core and space cam/cone roller transmission mechanism, pump shaft is overlapped with the centre of gyration of pump core, and the undercut groove in the window and pump housing centre bore on the axial groove and pump block of pump core upper plug constitutes the autogamy flow structure of two-dimentional plunger hydraulic pump；2 space cams/cone roller transmission mechanism is separately mounted to pump housing two sides, and 2 space cams are connect with pump core both ends respectively；The lever body includes the shift plate being fixed on pump shaft and the driving lever that is fixed on cam；The space cam/cone roller transmission mechanism is made of cone roller component and space cam.Improving performance, reduction manufacture difficulty and cost of the present invention.

Description

A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission
Technical field
The present invention relates to a kind of hydraulic planger pump, belong to the hydraulic pump and hydraulic motor in Fluid-transmission and control field.
Background technique
All kinds of pluger type hydraulic pumps have approximate working principle, i.e., in several plungers insertion cylinder bore, with pump shaft Rotation, swash plate (or flexural pivot or eccentric shaft or multiple-action inner curved ring etc.) constraint under, plunger successively makees the past of opposing cylinder Multiple movement, forms the swept volume of mechanical periodicity in cylinder bore, carries out flow by valve or valve disc.Plunger-type structure it is all kinds of In hydraulic pump, inclined disc type valve plate distribution structure is most representative and is widely applied.The structure of inclined disc type valve plate distribution hydraulic pump is special Point is fixed using valve plate, axis structure and swash plate, and the rotation of main shaft drives cylinder body drives plunger to rotate around pump shaft and in swash plate Constraint under it is reciprocating.Valve plate distribution has the characteristics that compact-sized, revolving speed is higher, suction capacity is good.Since there are cylinders The sliding friction pairs such as body/valve plate, flexural pivot, ram/cylinder hole, piston shoes/swash plate, the design and manufacture difficulty of pluger type hydraulic pump Height, cost are also higher.In addition, swash plate/piston shoes and cylinder body/very big uneven fluid pressure of the secondary receiving of valve plate friction, friction When secondary relative motion, the secondary pv value that rubs limits the raising of operating pressure or working speed.In addition, pump bearing is in power of toppling It is easily worn under the action of square, in turn results in the eccentric wear of valve plate.Above-mentioned reason, so that the performance of pluger type hydraulic pump is not yet It is easy to further increase.
Summary of the invention
Limited performance, manufacture difficulty in order to overcome the shortcomings of existing pluger type hydraulic pump be larger, higher cost, the present invention A kind of improving performance is provided, reduces manufacture difficulty and the two-dimentional plunger hydraulic pamp of the water-oil separating formula space cam transmission of cost.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission, including front pump shell, rear pump shell and middle section Main body is pumped, the front pump shell, rear pump shell are connect with pump main body, and pump shaft is mounted on front pump cover, and the pump shaft passes through lever body The power of input is passed into space cam/cone roller transmission mechanism；Pumping main body includes the pump housing, pump block, concentric ring, pump core and sky Between cam/cone roller transmission mechanism, pump shaft is overlapped with the centre of gyration of pump core, the window on the axial groove and pump block of pump core upper plug Undercut groove in mouth and pump housing centre bore constitutes the autogamy flow structure of two-dimentional plunger hydraulic pump；2 space cams/cone roller transmission Mechanism is separately mounted to pump housing two sides, and 2 space cams are connect with pump core both ends respectively；
The lever body includes the shift plate being fixed on pump shaft and the driving lever that is fixed on space cam, shift plate both ends peace Equipped with the linear slide bearing parallel with pump shaft, driving lever one end is fixed on space cam, and the other end is inserted into linear slide bearing It is interior；When pump shaft and shift plate rotate, 2 driving levers are driven by linear slide bearing and rotate the space cam connected with it；
The space cam/cone roller transmission mechanism is made of cone roller component and space cam, the cone roller component 2 cone rollers installed including turning rolls and its above, 2 rectangular boss and the pump housing and pump block that the turning rolls passes through the back side On slot connection to limit turning rolls and pump block around the rotation of pump core axis, by the fixed cam in pump core both ends by two rollings Wheel carrier is limited in the two sides of the pump housing；2 cone rollers use deep groove ball bearing and thrust bearing, are symmetrically mounted on turning rolls；It is empty Between cam be end face space cam, cam surface is similar to saddle, and when work contacts to form rolling pair simultaneously with 2 cone rollers；Front pump The space cam working curved surface having the same in space cam and rear front pump shell in shell, phase difference 90 when being connect with pump core Degree, i.e. two cams are that highest is corresponding with the phase of minimum point respectively；
In the pump housing, pump block and pump core in pump middle section, transmission mechanism is immersed in the lubricating oil in pump case working fluid；It is described There is nitrogen chamber in rear pump shell tail portion, has aperture to be connected between nitrogen chamber and pump case, has oil chamber by pressurized nitrogen certain Pressure, so that lubricating oil interporal lacuna out of piston shaft and space guide rail enters pump block, by the sliding bearing in the guide rail of space Leakage slot the lubricating oil of leakage is converged with working fluid, and suction inlet is discharged to by the inner flow passage on pump block.
Further, 2 concentric rings are separately mounted on 2 turning rolls, as turning rolls is fixed on the two sides of the pump housing, and are inserted Enter the both ends of pump block；Pump core axis is passed through from turning rolls centre bore, and the plunger in pump core is formed with concentric ring end face and pump block inner hole Sealed volume.
Further, the autogamy flow structure refer to have on pump core plunger circumferential equally distributed 4 with chute, this 4 The sealed volume of slot interval and plunger two sides is linked up, and has 2 high pressure oil-distribution ports on pump block, and position differs 180 degree, is inserted into the pump housing It is matched afterwards with high-pressure mouth undercut groove on the pump housing；Have 2 low pressure oil-distribution ports on pump block, position differs 180 degree, be inserted into after the pump housing with 2 suction inlets on the pump housing match.90 degree of phase difference of high-low pressure window phase；When pump core rotation, 4 flows on pump core plunger The flow valve port that 4 oil-distribution ports constitute 2 pairs of suckings and extrude on slot and pump block, at this point, phase occurs for the volume of 2 sealed volumes Anti- variation, a cavity volume, which increases, passes through a pair of of low pressure flow valve port from Pump Suction Nozzle sucking for liquid, and another cavity volume subtracts Lacked a pair of of high pressure flow valve port and working fluid was discharged from pump housing high-pressure mouth.
Beneficial effects of the present invention are mainly manifested in: improving performance reduces manufacture difficulty and cost.
Detailed description of the invention
Fig. 1 is the main view of two-dimentional plunger hydraulic pamp of the invention.
Fig. 2 is the top view of two-dimentional plunger hydraulic pamp of the invention.
The left view of two-dimentional plunger hydraulic pamp Fig. 3 of the invention.
Fig. 4 is lever body and the first cam 3-D view being attached thereto.
Fig. 5 is space cam/cone roller driving mechanism 3-D view.
Fig. 6 is the 3-D view in two-dimentional plunger hydraulic pamp middle section.
Fig. 7 is the 3-D view of the second cam in rear pump shell.
Wherein, 1 pump shaft, 2 first deep groove ball bearings, 3 driving levers, 4 linear slide bearings, 5 shift plates, 6 first space cams, 7 First turning rolls, 8 pump blocks, 9 pump cores, 10 second turning rolls, 11 second space cams, 12 rear pump shells, 13 pump housings, 14 front pump shells, 15 first circlips, 16 first O-ring seals, 17 first socket head screws, 18 bearing baffle rings, 19 second circlips, 20 rotating seal rings, 21 straight pins, 22 third circlips, 23 second socket head screws, 24 concentric rings, 25 second is O-shaped close Seal, 26 third O-ring seals, 27 the 4th O-ring seals, 28 second straight pins, 29 the 4th circlips, 30 charge valves, 31 5th O-ring seal, 32 third socket head screws, 33 the 6th O-ring seals, 34 cone rollers, 35 rolling bearings, 36 idler wheels Axis, 37 holding screws, 38 thrust bearings, 39 springs.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig.1~Fig. 7, a kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission, including front pump shell 14, The pump main body 13 of rear pump shell 12 and middle section, the front pump shell 14, rear pump shell 12 are connect by screw with pump main body 13.
The pump shaft 1 is mounted on front pump cover 14, and it is convex that the power of input by lever body is passed to space by pump shaft 1 Wheel/cone roller transmission mechanism.Pumping main body 13 includes the pump housing, pump block 8, concentric rings 4,9 space cams of pump core/cone roller driver Structure.Pump shaft 1 is overlapped with the centre of gyration of pump core 9.In window and pump housing centre bore on the axial groove and pump block of 9 upper plug of pump core Undercut groove constitute the autogamy flow structure of two-dimentional plunger hydraulic pump.2 space cams/cone roller transmission mechanism is separately mounted to pump Body two sides, 2 space cams are connect with 9 both ends of pump core respectively.
The lever body includes the shift plate 5 being fixed on pump shaft 1 and is fixed on space cam (6 He of the first space cam Second space cam 11) on driving lever 3.5 both ends of shift plate are equipped with the linear slide bearing 4 parallel with pump shaft, and 3 one end of driving lever is solid It is scheduled on space cam, the other end is inserted into linear slide bearing 4.When pump shaft 1 and shift plate 5 rotate, pass through linear slide axis It holds 4 drive, 2 driving levers and rotates the space cam connected with it.
The space cam/cone roller transmission mechanism, by cone roller component (2 installed including turning rolls and its above Cone roller) and space cam composition.In 2 rectangular boss (identical as key effect) and the pump housing and pump block that turning rolls passes through the back side Slot connection to limit turning rolls and pump block around the rotation of pump core axis, by the fixed cam in pump core both ends by two idler wheels Frame is limited in the two sides of the pump housing；2 cone rollers use deep groove ball bearing and thrust bearing, are symmetrically mounted on turning rolls.Space Cam is end face space cam, and cam surface is similar to saddle, and when work contacts to form rolling pair simultaneously with 2 cone rollers.Front pump shell Space cam working curved surface having the same in interior space cam and rear front pump shell, but when being connect with pump core, phase difference 90 Degree, that is to say, that two cams are that highest is corresponding with the phase of minimum point respectively.When space cam rotation, by cone roller Constraint, the spatial surface of cam forces itself and pump core axis axially movable, 2 cam alternating actions of pump housing two sides make with Its pump core being connected generates reciprocating motion.
2 concentric rings 4 are separately mounted on 2 turning rolls, as turning rolls is fixed on the two sides of the pump housing, and are inserted into pump The both ends of set；Pump core axis is passed through from turning rolls centre bore, and the plunger in pump core forms close with concentric ring end face and pump block inner hole Seal cavity.The autogamy flow structure of so-called two dimension plunger hydraulic pump, referring to has circumferential equally distributed 4 flows on pump core plunger The sealed volume of slot, this 4 slot intervals and plunger two sides is linked up.There are 2 high pressure oil-distribution ports on pump block, position differs 180 degree, It is matched after the insertion pump housing with high-pressure mouth undercut groove on the pump housing.There are 2 low pressure oil-distribution ports on pump block, position differs 180 degree, insertion Match after the pump housing with 2 suction inlets on the pump housing.90 degree of phase difference of high-low pressure window phase.When pump core rotation, pump core plunger The upper 4 flow valve ports for constituting 2 pairs of suckings with 4 oil-distribution ports on chute and pump block and extruding, at this point, 2 sealed volumes Opposite variation occurs for volume, and a cavity volume increases sucks liquid by a pair of of low pressure flow valve port from Pump Suction Nozzle, and another One cavity volume reduced a pair of of high pressure flow valve port and working fluid was discharged from pump housing high-pressure mouth.
Water-oil separating refers to that the lubricating oil in working fluid (water or seawater) and pump case in pump passes through certain structure and sealing Part separates.Working fluid is in the pump housing, pump block 8 and pump core 9 of pump main body, and transmission mechanism is immersed in the lubricating oil in pump case. In addition, there is nitrogen chamber in rear pump shell tail portion, there is aperture to be connected between nitrogen chamber and pump case, by pressurized nitrogen there is oil chamber Certain pressure passes through the sliding axle in the guide rail of space so that lubricating oil interporal lacuna out of piston shaft and space guide rail enters pump block The leakage slot held converges the lubricating oil of leakage with working fluid, and is discharged to sucking by the inner flow passage on pump block Mouthful, to realize the reliable separation of grease, working fluid is avoided to leak into lubricating fluid.
The pump main body 13 of the present embodiment includes that (the first space is convex for the pump housing, pump block 8, concentric rings 4 and pump core 9 and space cam Wheel 6 and second space cam 11), pump block 8 in pump housing hole, be inserted into pump block 8 by pump core 9, and concentric rings 4 are inserted into pump block 8, Pump core 9 is passed through from turning rolls centre bore and is connected with space cam.
Lever body includes the shift plate 5 being fixed on pump shaft 1 and the driving lever 3 being fixed on space cam.5 both ends of shift plate peace Equipped with the linear slide bearing 4 parallel with pump shaft, 3 one end of driving lever is fixed on cam, and the other end is inserted into linear slide bearing 4 It is interior.
Pump block 8 and the pump housing, the pump housing and front pump shell 14, rear pump shell 12 all use radial seal, by radial O-ring, Vibration when can efficiently reduce pump work is transmitted to outside, to reduce pump noise.
Cam working face is band certain taper, and axial coordinate is the curved surface changed by constant acceleration and deceleration motion.
In slot on 2 rectangular boss (key) insertion pump housing and pump block at the turning rolls back side, to realize while limit The rotation of turning rolls and pump block around pump core axis.
Turning rolls back side insertion concentric ring is inserted into pump block and is connect by key with the pump housing and pump block, connects firmly in pump core Cone roller frame is pressed on the pump housing by cam, and cone roller frame can be with axial inching.When the guide rail is by action of hydraulic force, cone roller It is pressed on cam work curved surface.
Spring 39 is housed, when turning rolls is mounted on pump housing two sides, spring is pressed in the slot of pump housing two sides on the key of the turning rolls back side On, turning rolls is pushed out, makes turning rolls have an outside power so as to roller compression always on cam, to reduce pump Axial vibration.
4 oil-distribution ports on pump block 8 are rectangle, and 4 points of rectangular window process circular hole.So that high-low pressure chamber when flow Pocketed oil phenomenon does not occur when switching, reduces the hydrodynamic noise with head piece.
Lubricating oil is full of in the pump case of front and back, transmission parts, which are immersed in oil liquid, to be lubricated.
Pump case band pressurized nitrogen room pressurizes to the lubricating oil in pump case by the indoor pressure nitrogen gas of nitrogen, so that lubrication Oil enters in the gap of piston and guide rail hole, prevents water from entering oil chamber, guarantees grease reliable separation.
Leakage slot is opened on the inner hole of concentric rings 4, there is the inner flow passage for leakage on pump block 8, by the Shui Herun of leakage Lubricating oil discharge.

Claims (5)

1. a kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission, including front pump shell, rear pump shell and the pump in middle section Main body, the front pump shell, rear pump shell are connect with pump main body, it is characterised in that: pump shaft is mounted on front pump cover, and pump shaft passes through driving lever The power of input is passed to space cam-cone roller transmission mechanism by mechanism；Pumping main body includes the pump housing, pump block, concentric ring, pump core And space cam-cone roller transmission mechanism, pump shaft are overlapped with the centre of gyration of pump core, on the axial groove and pump block of pump core upper plug Window and pump housing centre bore in undercut groove constitute the autogamy flow structure of two-dimentional plunger hydraulic pamp；2 space cam-cone rollers Transmission mechanism is separately mounted to pump housing two sides, and 2 space cams are connect with pump core both ends respectively；
The lever body includes the shift plate being fixed on pump shaft and the driving lever that is fixed on space cam, the upper and lower ends of shift plate The linear slide bearing parallel with pump shaft is installed, driving lever one end is fixed on space cam, and the other end is inserted into linear slide axis In holding；When pump shaft and shift plate rotate, 2 driving levers are driven by linear slide bearing and turn the space cam connected with it It is dynamic；
The space cam-cone roller transmission mechanism is made of cone roller component and space cam, cone roller component, the cone rolling Wheel assembly includes turning rolls and its 2 cone rollers installed above, and the turning rolls passes through 2 rectangular boss and the pump housing at the back side It connects to limit turning rolls and pump block with the slot on pump block around the rotation of pump core axis, passes through the cam that pump core both ends are fixed Two turning rolls are limited in the two sides of the pump housing；2 cone rollers use deep groove ball bearing and thrust bearing, are symmetrically mounted on turning rolls On；Space cam is end face space cam, and cam surface is similar to saddle, and when work contacts to form rolling pair simultaneously with 2 cone rollers； The working curved surface having the same of the space cam in space cam and rear pump shell in front pump shell, phase difference 90 when being connect with pump core Degree, i.e. two cams are that highest is corresponding with the phase of minimum point respectively；
In the pump housing, pump block and pump core in pump middle section, transmission mechanism is immersed in the lubricating oil in pump case working fluid；Pump after described There is nitrogen chamber in shell tail portion, has aperture to be connected between nitrogen chamber and pump case, so that oil chamber is had certain pressure by pressurized nitrogen, So that lubricating oil interporal lacuna out of plunger axis and space guide rail enters pump block, pass through the leakage on the sliding bearing in the guide rail of space Slot converges the lubricating oil of leakage with working fluid, and is discharged to suction inlet by the inner flow passage on pump block.
2. a kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission as described in claim 1, it is characterised in that: 2 concentric rings are separately mounted on 2 turning rolls, as turning rolls is fixed on the two sides of the pump housing, and are inserted into the both ends of pump block；Pump Mandrel is passed through from turning rolls centre bore, and the plunger in pump core and concentric ring end face and pump block inner hole form sealed volume.
3. a kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission as claimed in claim 1 or 2, feature exist In: the autogamy flow structure, which refers on pump core plunger, has circumferential equally distributed 4 with chute, this 4 are matched chute interval and column The sealed volume for filling in two sides is linked up, and has 2 high pressure oil-distribution ports on pump block, and position differs 180 degree, be inserted into after the pump housing on the pump housing The matching of high-pressure mouth undercut groove；There are 2 low pressure oil-distribution ports on pump block, position differs 180 degree, is inserted into after the pump housing and 2 on the pump housing A suction inlet matches, and 90 degree of phase difference of high-low pressure window phase；When pump core rotation, match chute and pump block for 4 on pump core plunger The flow valve port that upper 4 oil-distribution ports constitute 2 pairs of suckings and extrude, at this point, the volume of two sealed volumes occurs on the contrary Variation, a cavity volume, which increases, passes through a pair of of low pressure flow valve port from Pump Suction Nozzle sucking for liquid, and another cavity volume was reduced Working fluid is discharged a pair of of high pressure flow valve port from pump housing high-pressure mouth.
4. a kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission as claimed in claim 1 or 2, feature exist In: spring is housed, when turning rolls is mounted on pump housing two sides, spring is pressed in the slot of pump housing two sides on the key at the back side of the turning rolls On.
5. a kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission as claimed in claim 1 or 2, feature exist In: pass through radial O-ring radial seal between the pump block and the pump housing, the pump housing and front pump shell, rear pump shell.
CN201711476990.6A 2017-12-29 2017-12-29 A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission Active CN108278186B (en)

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CN111502951B (en) * 2019-01-31 2024-06-07 浙江工业大学 Roller type force balance unit pump
CN110145448B (en) * 2019-05-23 2021-03-02 浙江大学城市学院 Small-size high-pressure plunger high-pressure water pump based on two-degree-of-freedom motor
CN112196760A (en) * 2020-08-31 2021-01-08 浙江工业大学 Novel electro-hydraulic motor
CN111997865A (en) * 2020-08-31 2020-11-27 浙江工业大学 Miniature water hydraulic motor pump driven by roller carrier
CN112594182A (en) * 2020-11-27 2021-04-02 北京空天技术研究所 Axial-flow double-acting plunger and plunger pump with same
CN114483512B (en) * 2022-01-28 2024-05-03 浙江工业大学 Miniature water hydraulic pump
CN116123051B (en) * 2022-12-29 2024-08-06 北京空天技术研究所 High-flow double-motion freedom degree water hydraulic piston pump

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US7300260B1 (en) * 2003-10-31 2007-11-27 Sauer-Danfoss Inc. Special fluids for use in a hydrostatic transmission
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Application publication date: 20180713

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Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

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Assignee: Linyi damie Power Machinery Technology Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980017508

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241014

Application publication date: 20180713

Assignee: Shandong Xiaozhong Outdoor Fine Engineering Technology Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980017504

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241014

Application publication date: 20180713

Assignee: Zhongmin Oil (Shandong) Commercial Operation Management Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980017542

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241014

Application publication date: 20180713

Assignee: Linyi CITIC Information Technology Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980017535

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241014

EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180713

Assignee: Zhejiang jieshili electromechanical Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980020656

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241031

Application publication date: 20180713

Assignee: Zhejiang linou electromechanical Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980020587

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241031

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180713

Assignee: Zhejiang Ganjing Electromechanical Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980020957

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241104

Application publication date: 20180713

Assignee: WENLING HUIYUAN ELECTROMECHANICAL CO.,LTD.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980020880

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241104

Application publication date: 20180713

Assignee: Auman Electromechanical Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980020869

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241104

Application publication date: 20180713

Assignee: Tianhang Intelligent Testing Technology Group Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980020854

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241104

Application publication date: 20180713

Assignee: Taizhou Diye Electromechanical Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980020805

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241104

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180713

Assignee: SHANDONG SHENGYA MACHINERY Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980028164

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241128

Application publication date: 20180713

Assignee: Shandong Huatong New Material Technology Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980028155

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241128

Application publication date: 20180713

Assignee: Shandong Jinli Hydraulic Technology Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980027942

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241128

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180713

Assignee: Tancheng Xiuguang Gas Station

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980034572

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241213

Application publication date: 20180713

Assignee: Shandong Zhenggong Machinery Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980034545

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241213

Application publication date: 20180713

Assignee: SHANDONG SHENGDA ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980034512

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241212

Application publication date: 20180713

Assignee: Shandong Jiaqi Advertising Sign Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980034434

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241212

Application publication date: 20180713

Assignee: Tancheng County Xinyi Jiayi Shopping Plaza

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980034333

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241212

EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180713

Assignee: Jiaxing Tianyi New Material Technology Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980034859

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241213

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180713

Assignee: QUZHOU INTEL POLYMER MATERIALS Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980035517

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241217

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180713

Assignee: Quzhou Shunping Mining Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980040018

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241228

Application publication date: 20180713

Assignee: Zhejiang Yinya Machinery Technology Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980039050

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20241226

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180713

Assignee: Taizhou Shifeng Electromechanical Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2025980001967

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20250118

EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180713

Assignee: Wenling Tianhang Logistics Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2025980002211

Denomination of invention: A two-dimensional plunger water pressure pump with oil-water separation spatial cam transmission

Granted publication date: 20190528

License type: Open License

Record date: 20250121

EE01 Entry into force of recordation of patent licensing contract