CN108119360A - Roller rotary pump and its control method during for petroleum vapor recovery - Google Patents
Roller rotary pump and its control method during for petroleum vapor recovery Download PDFInfo
- Publication number
- CN108119360A CN108119360A CN201810120212.1A CN201810120212A CN108119360A CN 108119360 A CN108119360 A CN 108119360A CN 201810120212 A CN201810120212 A CN 201810120212A CN 108119360 A CN108119360 A CN 108119360A
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- CN
- China
- Prior art keywords
- roller
- cylinder sleeve
- rotor
- cylinder
- pump
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F04C2/3445—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the vanes having the form of rollers, slippers or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/10—Stators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The present invention relates to a kind of roller rotary pumps, are mainly provided with rotor, roller, cylinder sleeve, the pump housing and shaft, and the rotor and roller are placed in cylinder sleeve, and cylinder sleeve is placed in the pump housing, and the pump housing is equipped at least one intake channel and at least one exit passageway；It is characterized in that：The roller is cylinder；The roller, cylinder sleeve are at least one of magnetic material, magnetic substance, and wherein at least one is magnetic substance, and roller is bonded under the action of magnetive attraction with inboard wall of cylinder liner always；The rotor is equipped at least two sliding slots, and the roller is placed in the sliding slot and can be freely rotated in sliding slot；The rotor rotates in cylinder sleeve, while the roller that is placed in its sliding slot is driven to be rotated in sliding slot while is close to inboard wall of cylinder liner and rotates.Roller rotary pump of the present invention is simple in structure, is easy to make, without vulnerable part, non-maintaining long operational time.
Description
Technical field
The present invention relates to a kind of rotating displacement pumps, relate in particular to a kind of roller rotary pump, further relate to impeller pump use
Control method when gas station oil gas recycles.
Background technology
Sliding-vane pump is typical impeller pump, relatively low with simple and compact for structure, small, light-weight, few easy workout part, cost
The characteristics of, it is widely used in petrochemical industry and refrigeration industry.But the sliding-vane pump used at present, slide plate and inboard wall of cylinder block, slide plate
To slide, frictional resistance is larger, and slide plate is easy to wear, adds maintenance cost, and slide plate for relative motion between rotor rollaway nest
It is more demanding with the fit precision of sliding slot, it increases manufacturing cost；Slide plate relies on the elastic compression of elastic element in cylinder body simultaneously
On inner wall, and elastic element can not be accurately positioned, thus elastic element be susceptible in the pump housing operation process dislocation it is stuck
Failure.Notification number discloses a kind of " rolling sliding vane pump " for CN1635276A, and notification number discloses " a kind of for CN206617318U
Inside and outside track controllable combined rolling slide plate and sliding-vane pump ", they are although propose the scheme of rolling slide plate, the rolling
Slide plate there are it is complicated, manufacture assembling is difficult, be easily out of order, reliability is not high the shortcomings that.For this reason, it may be necessary to propose one kind
Structure and the further improved impeller pump of performance.
Gas station is equipped with gas recovery system for oil at present, can be in fuel tank while fuel charger refuels into automotive oil tank
Gas containing a large amount of Constituents of The Essential Oil is recovered in gas station's oil tank so that into fuel tank oil and discharge fuel tank oil gas into
Go out balance, the gas containing a large amount of Constituents of The Essential Oil is not allowed to be discharged in air, cause the waste of oil, and pollute environment and lead to fire
Calamity is dangerous.This just needs to carry out accurate adjusting control to the oil gas flow of recycling according to fuel charger oiling flow.Due to difference
The discharge characteristic of fuel charger is there are larger difference, and fuel charger is present with the feelings of abrasion and pipeline blockage again in the process of running
Condition causes oiling flow to there is very big uncertainty, while gas recovery system for oil pipeline damping characteristic is there is also larger difference,
And since the abrasion of component and the blocking of pipeline, gas collection pipe roadlock Buddhist nun also can constantly be sent out in fuel charger operational process
Changing, thus to realize fuel charger oiling flow and petroleum vapor recovery flow it is real-time accurately match it is relatively difficult.For this purpose, it needs
It is proposed a kind of further improved petroleum vapor recovery control method of performance.
The content of the invention
Regarding the issue above, the present invention provides a kind of roller rotary pump.The roller rotary pump is simple in structure, system
It is easy to make, and without vulnerable part, non-maintaining long operational time is easy to use, functional.
A kind of controlling party when being recycled it is a further object of the invention to provide roller rotary pump for gas station oil gas
Method.
In order to solve the above problems, the present inventor deeply grinds slide plate pump configuration and gas recovery system for oil
Study carefully, it turns out that, change sliding friction into rolling friction, ensure elastic element it is reliable be accurately positioned and to flow matches by
Point control is to solve the excellent scheme of the above subject, it is achieved thereby that of the invention.
The purpose of the present invention is what is be achieved through the following technical solutions：Roller rotary pump, be mainly provided with rotor, roller,
Cylinder sleeve, the pump housing and shaft, the rotor and roller are placed in cylinder sleeve, and cylinder sleeve is placed in the pump housing, and the pump housing is equipped at least one
A intake channel and at least one exit passageway；It is characterized in that：The roller is cylinder；The roller, cylinder sleeve are magnetism
At least one of material, magnetic substance, and wherein at least one be magnetic substance, roller under the action of magnetive attraction always with cylinder sleeve
Inner wall is bonded；The rotor is equipped at least two sliding slots, and the roller is placed in the sliding slot and can freely turn in sliding slot
It is dynamic；The rotor is placed in cylinder sleeve, is rotated under the driving of shaft in cylinder sleeve, while is driven and be placed in its sliding slot
Roller is close to inboard wall of cylinder liner while rotation in sliding slot and rotates；The rotor and roller by cylinder sleeve inner cavity be divided into
Few two cavitys, during rotor drives roller to be rotated along inboard wall of cylinder liner, cavity order and the intake channel on the pump housing
Or exit passageway unicom.
Further, the roller and cylinder sleeve wrap up or coated with wear-resistant material.
Further, the inboard wall of cylinder liner is in cylindrical surface, ellipsoid, plane, arc surface, parabola face, hyperbola face
At least one.
Further, the rotor eccentricity is placed in cylinder sleeve.
Further, the rotor is placed in geometric center position in cylinder sleeve.
Control method when roller rotary pump recycles for gas station oil gas mainly includes direct current generator and SERVO CONTROL
Device, the servo controller are equipped with control panel, servo controller according to oiling oil pump capacity control DC motor speed into
And control the flow of roller rotary pump output gas, it is characterised in that：In servo controller, a roller rotor is preset
Pump the whole scale factor a of the ratio between output gas flow of gas and oiling oil pump capacity, a values can by control panel input with more
Change；Simultaneously for a certain specific oil pump flow of fuel charger, at least one add can also be individually set point by point on the control panel
Oil machine flow value Q, and can individually set the ratio between the impeller pump output gas flow of gas at flow Q and oiling oil pump capacity
Special ratios factor b, wherein 0 ＜ a≤2,0 ＜ b≤2.
The operational process of roller rotary pump of the present invention is similar with rotary sliding vane pump, the difference is that the rolling with rotary motion
Column replaces the slide plate slided, and the magnetive attraction between roller and cylinder sleeve replaces the elastic force of elastic element.
The operating process of control method when roller rotary pump of the present invention recycles for gas station oil gas is：In control panel
It is upper input one global proportionality factor a value, measure fuel charger different stalls when petroleum vapor recovery flow and oiling flow, if often
Petroleum vapor recovery flow all matches intact with oiling flow during one gear, then need not set other parameters；If under each gear
It all mismatches, then resets a values；It to be mismatched if there are one gears, remaining gear all matches well, then on the control panel
It the oiling flow value Q under the range state is inputted, then sets the special ratios factor b values under this flow status, adjusted with this
Save petroleum vapor recovery amount during this oiling gear；It to be mismatched if there are two gears, first set the Q values under first range state
With b values, the Q values and b values under second range state are then reset；And so on multiple Q values and b can be set as needed
Value, so as to fulfill the matched well of petroleum vapor recovery flow under each range state and oiling flow.
Roller rotary pump of the present invention has the following advantages compared with prior art：Between roller and cylinder sleeve, roller and sliding slot
Relative motion is rolls, and frictional resistance is smaller, and power loss is small, and operating cost is low；Component should not be worn, good operating stability,
The non-maintaining time is long, and maintenance cost is low；And the fit precision of roller and sliding slot is of less demanding, and processing and manufacturing is easy, is produced into
This is low；Roller is bonded with cylinder sleeve using magneticaction, and active force is reliable and stable, good operating stability.
Control method when roller rotary pump of the present invention recycles for gas station oil gas has following compared with prior art
Advantage：Oiling flow and petroleum vapor recovery flow under each range state of fuel charger can individually be set, and ensure that oil gas returns
Receive the accurate matching of flow and oiling flow.
Description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention 1
Fig. 2 is the front view of the embodiment of the present invention 1
Fig. 3 is the left view of the embodiment of the present invention 1
Fig. 4 is the stereogram of 1 rotor of the embodiment of the present invention
Fig. 5 is the stereogram of 2 rotor of the embodiment of the present invention
Fig. 6 is the stereogram of 2 cylinder sleeve of the embodiment of the present invention
Fig. 7 is the structure diagram of the embodiment of the present invention 3
Fig. 8 is the stereogram of 3 rotor of the embodiment of the present invention
Fig. 9 is the stereogram of 3 cylinder sleeve of the embodiment of the present invention
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples：
Embodiment 1：Referring to attached drawing, roller rotary pump is mainly provided with rotor 1, roller 2, cylinder sleeve 3, the pump housing 4 and shaft 5, pump
Intake channel 4.1 and one outlet passage 4.2 there are one being set on body；Control device mainly includes direct current generator 6 and SERVO CONTROL
Device 7, servo controller are equipped with control panel 7.1.Roller is cylinder and has magnetism, and cylinder sleeve is made of martensitic stain less steel
Annulus, roller is bonded under the action of magnetive attraction with inboard wall of cylinder liner always；Sliding slot 1.1 there are five being set on rotor, each sliding slot
It is interior that respectively there are one rollers；It is placed in cylinder sleeve rotor eccentricity, rotates in cylinder sleeve under the driving of shaft, drive simultaneously
The roller being placed in its sliding slot is close to inboard wall of cylinder liner while rotation in sliding slot and rotates；Rotor will be in cylinder sleeve with roller
Chamber is divided into five cavitys, is driven in rotor during roller rotates along inboard wall of cylinder liner, cavity order on the pump housing into
Mouth passage or exit passageway unicom.When rotor drives roller to be rotated counterclockwise around shaft, cavity volume on the left of cylinder sleeve inner cavity
Gradually increase, generates suction at intake channel, and gas enters left side cavity by intake channel；It is empty on the right side of cylinder sleeve inner cavity simultaneously
Cavity volume is gradually reduced, and it is external that the gas in cavity is pressed into exit passageway excavationg pump, and rotor, which rotates a circle, completes a suction
Gas process.A=1 is inputted on the control panel, then the gas flow of roller rotary pump discharge and the gasoline flow of fuel charger output
It is equal；The unequal situation of gasoline flow of gas flow and fuel charger output if there is the discharge of a certain gear impeller pump,
The gasoline flow Q of the gear is then inputted on the control panel, is then inputted the b values under this flow, can be realized under this gear
The independent adjusting of the gas flow of impeller pump discharge.
Embodiment 2：Roller rotary pump, cylinder sleeve are elliptical ring made of carbon steel, are set on rotor there are two sliding slot, other
Structure is same as Example 1.
Embodiment 3：Roller rotary pump, roller are martensitic stain less steel cylinder, and cylinder sleeve is magnetic by arc surface
With the ring of plane composition, rotor is located at the geometric center of cylinder sleeve, is set on rotor there are six sliding slot, the pump housing leads to equipped with 2 imports
Road and 2 exit passageways, rotor rotates a circle, and suction and discharge process, other structures are same as Example 1 twice for completion.
Although being described in detail by the present invention using specific mode, it will be evident to those skilled in the art that can not take off
From being variously changed in the intent and scope of the present invention.
Claims (6)
1. roller rotary pump, be mainly provided with rotor (1), roller (2), cylinder sleeve (3), the pump housing (4) and shaft (5), the rotor and
Roller is placed in cylinder sleeve, and cylinder sleeve is placed in the pump housing, the pump housing be equipped at least one intake channel (4.1) and it is at least one go out
Mouth passage (4.2)；It is characterized in that：The roller is cylinder；The roller, cylinder sleeve for magnetic material, in magnetic substance at least
One kind, and wherein at least one is magnetic substance, roller is bonded under the action of magnetive attraction with inboard wall of cylinder liner always；The rotor
At least two sliding slots (1.1) are equipped with, the roller is placed in the sliding slot and can be freely rotated in sliding slot；The rotor is put
It in cylinder sleeve, rotates under the driving of shaft in cylinder sleeve, while drives the roller being placed in its sliding slot in sliding slot
It is close to inboard wall of cylinder liner while rotation to rotate；Cylinder sleeve inner cavity is divided at least two cavitys by the rotor with roller,
During rotor drives roller to be rotated along inboard wall of cylinder liner, cavity order joins with the intake channel on the pump housing or exit passageway
It is logical.
2. roller rotary pump according to claim 1, it is characterised in that：The roller and cylinder sleeve wrap up or coated with wear-resisting material
Material.
3. roller rotary pump according to claim 1, it is characterised in that：The inboard wall of cylinder liner is cylindrical surface, ellipsoid, puts down
At least one of face, arc surface, parabola face, hyperbola face.
4. roller rotary pump according to claim 1, it is characterised in that：The rotor eccentricity is placed in cylinder sleeve.
5. roller rotary pump according to claim 1, it is characterised in that：The rotor is placed in geometric center position in cylinder sleeve.
Control method when 6. roller rotary pump recycles for gas station oil gas, mainly including direct current generator (6) and SERVO CONTROL
Device (7), the servo controller are equipped with control panel (7.1), and servo controller is according to oiling oil pump capacity control direct current
Machine rotating speed and then the flow for controlling roller rotary pump output gas, it is characterised in that：In servo controller, one is preset
The whole scale factor a of the ratio between roller rotary pump output gas flow of gas and oiling oil pump capacity, a values can pass through control panel
Input and change；Simultaneously for a certain specific oil pump flow of fuel charger, can also individually set point by point on the control panel to
A few fuel charger flow value Q, and can individually set the impeller pump output gas flow of gas at flow Q and oiling lubricating oil pump
The special ratios factor b of the ratio between flow, wherein 0 ＜ a≤2,0 ＜ b≤2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810120212.1A CN108119360A (en) | 2018-02-01 | 2018-02-01 | Roller rotary pump and its control method during for petroleum vapor recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810120212.1A CN108119360A (en) | 2018-02-01 | 2018-02-01 | Roller rotary pump and its control method during for petroleum vapor recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108119360A true CN108119360A (en) | 2018-06-05 |
Family
ID=62233635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810120212.1A Pending CN108119360A (en) | 2018-02-01 | 2018-02-01 | Roller rotary pump and its control method during for petroleum vapor recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108119360A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776583A (en) * | 2022-05-06 | 2022-07-22 | 嵊州市浙江工业大学创新研究院 | Combined roller device for roller rotor pump and centering positioning method |
| CN117052655A (en) * | 2023-09-06 | 2023-11-14 | 温州汇润机电有限公司 | Roller pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3501545A1 (en) * | 1985-01-18 | 1986-07-24 | Robert Bosch Gmbh, 7000 Stuttgart | Appliance for conveying fuel from a reservoir to the internal combustion engine of a motor vehicle |
| FR2637976A1 (en) * | 1988-10-19 | 1990-04-20 | Nuovo Pignone Spa | VOLUMETRIC METER FOR LIQUIDS AND / OR GAS, PARTICULARLY SUITABLE FOR SERVICE STATIONS |
| TW200706755A (en) * | 2005-08-09 | 2007-02-16 | Yamaha Motor Co Ltd | Exhaust gas recirculation system for motorcycle |
| CN201215086Y (en) * | 2008-05-28 | 2009-04-01 | 陈胜云 | Vacuum pump |
| CN201335058Y (en) * | 2008-10-13 | 2009-10-28 | 中山力劲机械有限公司 | Servo control system of oil pump |
| CN201391453Y (en) * | 2009-02-17 | 2010-01-27 | 中国石油化工股份有限公司 | Roller vacuum pump |
| CN202789516U (en) * | 2012-09-04 | 2013-03-13 | 浙江麦得机器有限公司 | Oil-gas recovery pump |
| CN203305487U (en) * | 2011-10-22 | 2013-11-27 | 漳州三凌机械电子有限公司 | Energy-saving servo control system |
| CN103527475A (en) * | 2013-09-17 | 2014-01-22 | 兰州理工大学温州泵阀工程研究院 | Stator magnetic pole type electric roller vane pump |
| CN206681984U (en) * | 2017-02-22 | 2017-11-28 | 浙江嘉松科技有限公司 | A kind of oil-gas recovery vacuum pump |
| CN208605346U (en) * | 2018-02-01 | 2019-03-15 | 王海容 | Roller rotary pump |
-
2018
- 2018-02-01 CN CN201810120212.1A patent/CN108119360A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3501545A1 (en) * | 1985-01-18 | 1986-07-24 | Robert Bosch Gmbh, 7000 Stuttgart | Appliance for conveying fuel from a reservoir to the internal combustion engine of a motor vehicle |
| FR2637976A1 (en) * | 1988-10-19 | 1990-04-20 | Nuovo Pignone Spa | VOLUMETRIC METER FOR LIQUIDS AND / OR GAS, PARTICULARLY SUITABLE FOR SERVICE STATIONS |
| TW200706755A (en) * | 2005-08-09 | 2007-02-16 | Yamaha Motor Co Ltd | Exhaust gas recirculation system for motorcycle |
| CN201215086Y (en) * | 2008-05-28 | 2009-04-01 | 陈胜云 | Vacuum pump |
| CN201335058Y (en) * | 2008-10-13 | 2009-10-28 | 中山力劲机械有限公司 | Servo control system of oil pump |
| CN201391453Y (en) * | 2009-02-17 | 2010-01-27 | 中国石油化工股份有限公司 | Roller vacuum pump |
| CN203305487U (en) * | 2011-10-22 | 2013-11-27 | 漳州三凌机械电子有限公司 | Energy-saving servo control system |
| CN202789516U (en) * | 2012-09-04 | 2013-03-13 | 浙江麦得机器有限公司 | Oil-gas recovery pump |
| CN103527475A (en) * | 2013-09-17 | 2014-01-22 | 兰州理工大学温州泵阀工程研究院 | Stator magnetic pole type electric roller vane pump |
| CN206681984U (en) * | 2017-02-22 | 2017-11-28 | 浙江嘉松科技有限公司 | A kind of oil-gas recovery vacuum pump |
| CN208605346U (en) * | 2018-02-01 | 2019-03-15 | 王海容 | Roller rotary pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776583A (en) * | 2022-05-06 | 2022-07-22 | 嵊州市浙江工业大学创新研究院 | Combined roller device for roller rotor pump and centering positioning method |
| CN114776583B (en) * | 2022-05-06 | 2024-01-30 | 嵊州市浙江工业大学创新研究院 | Combined roller device for roller rotor pump and centering positioning method |
| CN117052655A (en) * | 2023-09-06 | 2023-11-14 | 温州汇润机电有限公司 | Roller pump |
| CN117052655B (en) * | 2023-09-06 | 2024-04-09 | 温州汇润机电有限公司 | Roller pump |
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