CN105121783A - Screw pump - Google Patents
Screw pump Download PDFInfo
- Publication number
- CN105121783A CN105121783A CN201480011627.5A CN201480011627A CN105121783A CN 105121783 A CN105121783 A CN 105121783A CN 201480011627 A CN201480011627 A CN 201480011627A CN 105121783 A CN105121783 A CN 105121783A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- driver
- screw pump
- axle
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/02—Arrangements of bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/04—Lubrication
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- 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
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/008—Prime movers
-
- 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
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- 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
- F04C2240/40—Electric motor
- F04C2240/402—Plurality of electronically synchronised motors
-
- 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
- F04C2240/60—Shafts
- F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Disclosed is a screw pump for delivering a fluid medium. The screw pump comprises a pump housing for the medium to be delivered, said housing having an inlet and an outlet. Said screw pump comprises at least two screws. Said at least two screws consist respectively of a shaft having at least two shaft sections and a profiled section arranged therebetween, said profiled sections of the at least two screws engaging at least partially with each other. The at least two screws are arranged so that they can rotate at least partially in the pump housing. The first screw is designed as a drive screw. Said drive screw is associated with a direct first drive. According to the invention, a second drive is associated with at least one second screw.
Description
Technical field
The present invention relates to a kind of screw pump described in feature of preamble according to claim 1.
Background technique
Screw pump is so-called positive displacement pump, and the shape of the plunger rotated wherein is similar to shaft screw.Screw pump is made up of with the pump case surrounding rotor the rotor that two or more directions are contrary.Rotor configuration becomes to have the configuration of uniform screw thread form and engages each other in gear shape.Rotor is also referred to as screw rod and have the first axle section, have the shaped section of helical configuration or coil configuration and the second axle section.By three structural elements, i.e. pump case, the first screw rod and the second screw rod, the cavity of formation forms the conveyor chamber for the medium carried.When bolt rotary, conveyor chamber moves towards machine-direction and is transported on the pressure side from suction side (=entrance) by medium (=outlet).
This pump type is particularly suitable for incompressible viscous medium, and for generation of very high pressure.Screw pump is not only for carrying single-phase flowing medium also for carrying heterogeneous flowing medium.Double-current method two-axle screw pump comprises drive shaft (main rotor), and drive shaft is arranged in pump case together with at least one driven rotating shaft (secondary rotor).The moment of torsion produced by driver from drive shaft by gear transmission to driven rotating shaft.Fed sheet of a media stream from two ends, i.e. the on the pressure side transmission of pump in other words from the so-called suction side of pump towards centre.
Summary of the invention
The object of the invention is to carry out simplification to the pump structure of screw pump itself and and then simplify its installation.
This object is realized by a kind of screw pump of the feature be included in Patent right requirement 1.Other favourable design proposals are described by dependent claims.
The present invention relates to a kind of for carrying flowing medium, especially for the screw pump carrying medium that is sticky and/or that comprise wearing and tearing material.Screw pump comprises the pump case of the entrance and exit had for medium to be conveyed.At least two rotating shafts are arranged in pump case.Rotating shaft is made up of the axle with at least two axle sections and layout shaped section in-between respectively.The shaped section of at least two rotating shafts engages each other at least in part.At least two rotating shaft rotatably supports and being arranged at least in part in pump case.Two rotating shafts (its shaped section engages at least in part) of direct neighbor are rotated towards contrary sense of rotation respectively respectively.Particularly, the first rotating shaft rotates clockwise, and the second rotating shaft rotates counterclockwise; Or vice versa.
Entrance for medium to be conveyed is in is connected at the outside shaped section that is arranged in of suction side and rotating shaft.For medium to be conveyed outlet on the pressure side be arranged in inner shaped section and be in and be connected.For direct first driver of the first rotating shaft configuration at least two rotating shafts.This first rotating shaft is also referred to as drive shaft.According to the present invention, it is direct second driver of the second rotating shaft configuration at least two rotating shafts.
Preferably, the first driver and the second driver are arranged in the shaft end place being positioned at pump case outside of rotating shaft further relative to one another.
According to one preferred embodiment, screw pump comprises two rotating shafts of arranging with double-current method.Fed sheet of a media stream enters from two ends, namely from the so-called suction side of screw pump towards on the pressure side transport that is middle, i.e. screw pump.Two rotating shafts are configured with driver respectively, namely particularly relate to the screw pump with two direct driven rotating shafts arranged with double-current method.
According to an embodiment of the invention, the drive arrangement at respective axes of rotation place is at first end region place, and wherein, rotating shaft is preferably mutually adjoined and arranged abreast, the side that the difference making the corresponding region near driver of rotating shaft be positioned at pump case is opposite.For each rotating shaft, pump case has the axle through-Penetration portion for external supporting point, and this axle through-Penetration portion is used for the axle section between the first end region at close driver of supporting shaft and patterned region.The axle through-Penetration portion of the first and second rotating shafts is positioned on the opposite side of pump case.The shaft end freely opposite with so-called driver end respectively of rotating shaft is preferably arranged in pump case inside.According to one preferred embodiment, the shaft end freely of rotating shaft can be bearing in pump case inside rotationally, and wherein corresponding support is arranged further relative to one another.
At least two rotating shafts respectively with the driver of self for screw pump according to the present invention be configured for respectively the axle region of the close driver of respective axes of rotation external supporting point, for the inner support part of opposite shaft end freely of respective axes of rotation and the seal element for sealed external support.Therefore with according to the screw pump of known prior art relatively, two axle through-Penetration portion must only be sealed, instead of four axle through-Penetration portion.Therefore compared to conventionally known pump, pump case only has the possible leak position of 50%.
Preferably, identical electric motor is used to the first driver and at least one the second driver.Particularly, the rotating speed of pivot must be made to coordinate mutually with the configuration of shaped section, the helix of shaped section forms conveyor chamber and does not have mutual wedging thus.
Identical electric motor used can be synchronous motor or asynchronous motor respectively.Can be the driver respectively Configuration Control Board of rotating shaft, can separately control and drive system by control device.Especially, can the rotating speed of control and drive system individually by control device, distribute to make rotating shaft and synchronously operate.If such as use asynchronous motor, then can there is minimum speed difference when rotating shaft rotates.At this particularly importantly, the shaped section of rotating shaft follows engagement rule, makes rotating shaft faster drive slower rotating shaft, and can not make rotating shaft wedging and may be damaged thus.
According to an embodiment of the invention, the opposite shaft end freely of rotating shaft can be bearing in so-called axle sleeve respectively rotationally.For axle sleeve configuration connecting element.Axle sleeve conveyor lubricant is can be by connecting element.This is especially required when medium to be conveyed does not have good lubrication property or comprise wearing and tearing material.Clean and under being in pressure Lubricants is particularly used as oiling agent.To this, the pressure of the Lubricants of conveying must higher than the suction pressure had of screw pump.Oiling agent mixes and therewith carrying-off with the medium of conveying when axle sleeve place overflows.
And if the medium of conveying has good lubrication property and do not comprise wearing and tearing material, so by the medium of conveying itself, the free end be bearing in corresponding axle sleeve is lubricated.Specify in this case, rotating shaft comprises hole along its longitudinal axis, and its mesopore such as extends until the centre of shaped section from free end.Therefore the fluid be manufactured between the high pressure lumen of screw pump and axle sleeve by the transverse holes in the zone line of shaped section connects.Medium to be conveyed arrives axle sleeve from high pressure side via hole due to the differential pressure in screw pump, and at this lubricative axle sleeve fully.Then the medium arriving bearing position via hole to mix and therewith by carrying-off with the medium of conveying again.Relate to inner loop at this, wherein, the medium of conveying is used as the oiling agent of the support of the shaft end of rotating shaft simultaneously.
Accompanying drawing explanation
Embodiments of the invention and advantage thereof should be elaborated with reference to the accompanying drawings below.The dimension scale each other of each element is in the accompanying drawings always not consistent with real dimension scale, because compared to other elements, some shapes illustrate with being simplified, and for the sake of clarity, other shapes illustrate exaggeratedly.
Fig. 1 shows the schematic diagram of the traditional two-axle screw pump according to prior art;
Fig. 2 shows the first mode of execution according to screw pump of the present invention;
Fig. 3 shows the second mode of execution according to screw pump of the present invention;
Fig. 4 and Fig. 5 shows the different stereogram according to screw pump of the present invention;
Fig. 6 and Fig. 7 respectively illustrates the sectional view according to screw pump of the present invention.
To similar elements of the present invention or act on identical element and use identical reference character.In addition for the sake of clarity, only illustrate in various figures for illustration of the necessary reference character of respective drawings.Shown mode of execution is only the example such as can implemented according to device of the present invention, and these examples are not the restrictions of encapsulation.
Embodiment
Fig. 1 shows the traditional two-axle screw pump 1 according to prior art, its by being embodied as the drive shaft 3 of double-current method (doppelflutig), driven double-current method rotating shaft 4 forms, they are installed to tool and are with or without in the pump case 2 of closure body 6.Closure body 6 is the cassette housings in pump case 2 inside, and rotating shaft 3,4 runs in pump case.If run closure body 6, particularly easily closure body can be changed when closure body 6 closes.
Rotating shaft 3,4 comprises the first axle section A1-3 or A1-4, shaped section P3, P4 and second axle section A2-3, A2-4 respectively.Pump case 2 has four external support position 7-3a, 7-3b, 7-4a and 7-4b and four axle through-Penetration portion 5 for rotating shaft 3,4.Rotating shaft 3,4 to be rotatably supported in axle through-Penetration portion 5 and rotating shaft 3,4 at outside bearing position 7-3a, 7-3b, 7-4a and 7-4b place from pump case 2 out.End face seal portion 8 is provided with as the seal element for outwards seal cage 2 at axle through-Penetration portion 5 place.Drive shaft 3 directly drives via driver M.The moment of torsion produced by driver M is delivered to driven rotating shaft 4 from drive shaft 3 via gear 9-3a, 9-3b, 9-4a and 9-4b.
According to traditional two-axle screw pump 1 of prior art be preferred for pump inhale Lubricants or not there is lubricating ability and heterogeneous fluid.Structure due to shown screw pump 1 has very many component, particularly have four axle through-Penetration portion 5, four external support positions 7-3a, 7-3b, 7-4a and 7-4b axle support and at least one gear mesh 9-3a, 9-3b, 9-4a and 9-4b in other words in end face seal portion 8, thus the installation of this screw pump 1 is pretty troublesome.
Fig. 2 shows according to first mode of execution with the screw pump 10a of pump case 12 of the present invention, and screw pump comprises two drive shaft 14-1 and 14-2.Two drive shaft 14-1 and 14-2 comprise the first axle section A1-1 or A2-1 of driving side respectively, configuration drives P1, P2 and for support section L1, the L2 at each drive shaft 14-1 of interior support of pump case 12, free end 16-1,16-2 of 14-2.Patterned region P1, P2 of drive shaft 14-1,14-2 self respectively have the contrary shaft thread with teeth portion configuration of both direction.Configuration is preferably designed specifically to and operates for rolling cut.
Each driver M1, M2 by self in two drive shaft 14-1,14-2, particularly by the drive motor Direct driver of self.
Different from the prior art shown in Fig. 1, screw pump 10a according to the present invention only comprises two external support position 7-1,7-2, has two axle through-Penetration portion 5 in the end face seal portion 8 as seal element.Therefore, screw pump 10a according to the present invention only has the axle through-Penetration portion 5 to be sealed of half quantity.In addition, there is no need for gear 9-3a, 9-3b, 9-4a and 9-4b (see Fig. 1) of transmitting torque.Thus, screw pump 10a mono-aspect according to the present invention is carried out manufacturing with more favourable cost and is more conducive on the other hand safeguarding, because screw pump comprises the component that less needs are safeguarded.
Drive shaft 14-1, the 14-2 arranged that be parallel to each other is bearing in so-called axle sleeve 20-1,20-2 of pump case 12 inside in the region of its support section L1, L2.Drive shaft 14-1,14-2 oppositely arrange mutually, and driver M1, M2 are arranged on the opposite side of pump case 12.
Preferably, in the screw pump 10a so constructed, drive motor M1, M2 can be embodied as synchronous motor and also can be embodied as asynchronous motor.This especially depends on medium to be conveyed.
If medium to be conveyed does not have good lubrication property or comprises wearing and tearing material, so clean via connecting element 22-1,22-2 conveying in order to lubricative axle sleeve 20-1,20-2 and Lubricants under being in pressure.The pressure of the Lubricants of conveying must be greater than the suction pressure had of screw pump 10a to this.The Lubricants overflowed at axle sleeve 20-1,20-2 place mixes and therewith carrying-off with the medium of conveying during pump is drawn through journey.
Fig. 3 shows the second mode of execution according to screw pump 10b of the present invention.Wherein, lubricated axle sleeve 20-1,20-2 by medium to be conveyed itself, wherein, Lubricants arrives axle sleeve 20-1,20-2 from the high pressure side in the middle of the rotating shaft via hole 24-1 and 24-2 in rotating shaft 14-1,14-2 inside due to differential pressure.In this case, medium to be conveyed must be free from admixture and wearing and tearing material and have good lubrication property.
Fig. 4 and Fig. 5 shows the different schematic perspective view according to screw pump 10 of the present invention, and Fig. 6 and Fig. 7 respectively illustrates the sectional view according to screw pump 10 of the present invention.For reference character explanation particularly referring to figs. 2 and 3.For driver M1, M2 respectively Configuration Control Board S1, S2 of rotating shaft 14-1,14-2, can control and drive system M1, M2 individually by control device.Especially by the rotating speed of control device S1, S2 control and drive system M1, M2 individually, can correspondingly synchronously operate to make rotating shaft 14-1,14-2.If the asynchronous motor such as by using in a conventional manner makes rotating shaft 14-1,14-2 operate, so there is minimum speed difference.At this particularly importantly, shaped section P1, P2 of rotating shaft 14-1,14-2 follow engagement rule, make rotating shaft 14-1 or 14-2 faster drive slower rotating shaft by engagement rule.
According to another unshowned mode of execution of the present invention, be provided with the co-controlling portion of the connecting part of control device S1, S2 or driver M1, the M2 for rotating shaft 14-1 or 14-2.
The present invention when with reference to preferred embodiment be described.But those skilled in the art can expect converting the present invention or changing, and can not leave the protection domain of following claim to this.
Reference numerals list
1 screw pump
2 pump cases
3 drive shafts
4 driven rotating shafts
5 axle through-Penetration portion
6 closure bodies
7 external support positions
8 end face seal portions
9 gears
10 screw pumps
12 pump cases
14 drive shafts
16 free ends
20 axle sleeves
22 connecting element
24 holes
A axle section
L support section
M driver
P shaped section
S control device
Claims (10)
1. one kind for carrying the screw pump (10) of flowing medium, and it comprises the pump case (2 had for the entrance and exit of medium to be conveyed, 12), described screw pump comprises at least two rotating shafts (3, 4, 14-1, 14-2), described rotating shaft is respectively by having at least two axle section (A1, A2) and be arranged in the shaped section (P) between these axle sections axle form, wherein, described at least two rotating shafts (3, 4, 14-1, shaped section (P) 14-2) engages each other at least in part, and wherein, described at least two rotating shafts (3, 4, 14-1, 14-2) rotationally, supportedly, be arranged in described pump case (2 at least in part, 12) the first rotating shaft (3 in, wherein, in described at least two rotating shafts, 14-1) being configured to drive shaft, is the direct first driver (M of described drive shaft configuration, M1), it is characterized in that, at least one second rotating shaft (14-2) in described at least two rotating shafts configures direct second driver (M2).
2. screw pump according to claim 1 (10), it is characterized in that, it is outside that described first driver (M1) and described second driver (M2) are arranged in described pump case (12) further relative to one another.
3. screw pump according to claim 1 and 2 (10), it is characterized in that, described screw pump (10) comprises two rotating shafts (14-1,14-2) of arranging with double-current method, wherein, each driver (M1, M2) being configured with self in these two rotating shafts (14-1,14-2).
4. according to screw pump in any one of the preceding claims wherein (10), it is characterized in that, there is the driver (M1 of self respectively, M2) at least two rotating shaft (14-1, 14-2) be arranged in its corresponding driver (M1 with first end region respectively, M2) place, wherein, for each rotating shaft (14-1, 14-2), described pump case (12) has the axle through-Penetration portion (5) for external supporting point (7), described axle through-Penetration portion is for supporting described rotating shaft (14-1, the first end region at close driver 14-2) and described patterned region (P1, P2) the axle section between, and wherein, described rotating shaft (14-1, opposite (the 16-1 of shaft end freely 14-2), 16-2) arrange and/or be bearing in described pump case (12) inside.
5. screw pump according to claim 4 (10), it is characterized in that, the opposite shaft end freely (16-1,16-2) of described rotating shaft (14-1,14-2) can be bearing in described pump case (12) inside rotatably.
6. according to screw pump in any one of the preceding claims wherein (10), it is characterized in that, there is the driver (M1 of self respectively, M2) at least two rotating shaft (14-1, 14-2) be configured with respectively for respective axes of rotation (14-1, the external supporting point (7) in the axle region (A1) of close driver 14-2), for respective axes of rotation (14-1, opposite (the 16-1 of shaft end freely 14-2), inner support part 16-2) and the seal element (8) for sealing described axle through-Penetration portion (5) at described pump case (2) place.
7. according to screw pump in any one of the preceding claims wherein (10), it is characterized in that, identical electric motor is used to described first driver (M1) and at least one second driver (M2) described.
8. screw pump according to claim 7 (10), is characterized in that, described electric motor is synchronous motor or asynchronous motor.
9. the screw pump (10) according to any one of claim 5 to 8, it is characterized in that, the opposite shaft end freely (16-1,16-2) of described rotating shaft (14-1,14-2) can be bearing in axle sleeve (20-1,20-2) rotationally, wherein, for described axle sleeve (20-1,20-2) configures connecting element (22-1,22-2), wherein, can conveyor lubricant by described connecting element (22-1,22-2).
10. the screw pump (10) according to any one of claim 5 to 8, it is characterized in that, the opposite shaft end freely (16-1,16-2) of described rotating shaft (14-1,14-2) can be bearing in axle sleeve (20-1,20-2) rotationally, wherein, described rotating shaft (14-1,14-2) comprises at least one hole (24-1,24-2) respectively and flows to described axle sleeve (20-1,20-2) to make the medium of conveying.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013102032.1A DE102013102032A1 (en) | 2013-03-01 | 2013-03-01 | Screw Pump |
| DE102013102032.1 | 2013-03-01 | ||
| PCT/DE2014/000086 WO2014131391A1 (en) | 2013-03-01 | 2014-02-25 | Screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105121783A true CN105121783A (en) | 2015-12-02 |
Family
ID=50488958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480011627.5A Pending CN105121783A (en) | 2013-03-01 | 2014-02-25 | Screw pump |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP2961929A1 (en) |
| JP (1) | JP2016508573A (en) |
| KR (1) | KR20150121219A (en) |
| CN (1) | CN105121783A (en) |
| AR (1) | AR094939A1 (en) |
| BR (1) | BR112015020434A2 (en) |
| DE (1) | DE102013102032A1 (en) |
| RU (1) | RU2015141527A (en) |
| WO (1) | WO2014131391A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110036202A (en) * | 2016-10-27 | 2019-07-19 | 克劳斯联合有限两合公司 | Horizonally split formula spiral pump |
| CN110177918A (en) * | 2017-01-11 | 2019-08-27 | 开利公司 | Fluid machinery with helical-blade rotor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020133760A1 (en) | 2020-12-16 | 2022-06-23 | Leistritz Pumpen Gmbh | Process for conveying a fluid through a screw pump and screw pump |
| DE102021113724A1 (en) | 2021-05-27 | 2022-12-01 | Jung & Co. Gerätebau GmbH | Single-flow screw pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62195481A (en) * | 1985-10-18 | 1987-08-28 | Hitachi Ltd | Nonlubricating type screw fluid mechinery |
| JPS6463689A (en) * | 1987-09-01 | 1989-03-09 | Hitachi Ltd | Screw fluid machine |
| EP0943804A1 (en) * | 1998-03-18 | 1999-09-22 | Ingersoll-Dresser Pump Company | Compact sealless screw pump |
| DE19820622A1 (en) * | 1998-05-09 | 1999-11-11 | Peter Frieden | Demountable pump or compressor for chemical or food processing industry |
| CN1959117A (en) * | 2005-11-01 | 2007-05-09 | 株式会社丰田自动织机 | Vacuum pump |
| CN101907095A (en) * | 2009-03-09 | 2010-12-08 | 株式会社神户制钢所 | Helical-lobe compressor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3593365B2 (en) * | 1994-08-19 | 2004-11-24 | 大亜真空株式会社 | Variable helix angle gear |
| BE1013221A3 (en) * | 2000-01-11 | 2001-11-06 | Atlas Copco Airpower Nv | Water-injected screw compressor element. |
| JP2001317478A (en) * | 2000-05-10 | 2001-11-16 | Tochigi Fuji Ind Co Ltd | Fluid machine |
| US20090098003A1 (en) * | 2007-10-11 | 2009-04-16 | General Electric Company | Multiphase screw pump |
| JP5777379B2 (en) * | 2011-04-05 | 2015-09-09 | 株式会社日立産機システム | air compressor |
-
2013
- 2013-03-01 DE DE102013102032.1A patent/DE102013102032A1/en not_active Ceased
-
2014
- 2014-02-25 JP JP2015559421A patent/JP2016508573A/en active Pending
- 2014-02-25 CN CN201480011627.5A patent/CN105121783A/en active Pending
- 2014-02-25 WO PCT/DE2014/000086 patent/WO2014131391A1/en active Application Filing
- 2014-02-25 RU RU2015141527A patent/RU2015141527A/en not_active Application Discontinuation
- 2014-02-25 EP EP14717658.0A patent/EP2961929A1/en not_active Withdrawn
- 2014-02-25 KR KR1020157026971A patent/KR20150121219A/en not_active Application Discontinuation
- 2014-02-25 BR BR112015020434A patent/BR112015020434A2/en not_active IP Right Cessation
- 2014-02-28 AR ARP140100653A patent/AR094939A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62195481A (en) * | 1985-10-18 | 1987-08-28 | Hitachi Ltd | Nonlubricating type screw fluid mechinery |
| JPS6463689A (en) * | 1987-09-01 | 1989-03-09 | Hitachi Ltd | Screw fluid machine |
| EP0943804A1 (en) * | 1998-03-18 | 1999-09-22 | Ingersoll-Dresser Pump Company | Compact sealless screw pump |
| DE19820622A1 (en) * | 1998-05-09 | 1999-11-11 | Peter Frieden | Demountable pump or compressor for chemical or food processing industry |
| CN1959117A (en) * | 2005-11-01 | 2007-05-09 | 株式会社丰田自动织机 | Vacuum pump |
| CN101907095A (en) * | 2009-03-09 | 2010-12-08 | 株式会社神户制钢所 | Helical-lobe compressor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110036202A (en) * | 2016-10-27 | 2019-07-19 | 克劳斯联合有限两合公司 | Horizonally split formula spiral pump |
| CN110036202B (en) * | 2016-10-27 | 2020-10-30 | 克劳斯联合有限两合公司 | Horizontal split type screw shaft pump |
| CN110177918A (en) * | 2017-01-11 | 2019-08-27 | 开利公司 | Fluid machinery with helical-blade rotor |
| CN110177918B (en) * | 2017-01-11 | 2022-04-01 | 开利公司 | Fluid machine with helical blade rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2015141527A (en) | 2017-04-06 |
| DE102013102032A1 (en) | 2014-09-04 |
| BR112015020434A2 (en) | 2017-08-22 |
| AR094939A1 (en) | 2015-09-09 |
| KR20150121219A (en) | 2015-10-28 |
| JP2016508573A (en) | 2016-03-22 |
| EP2961929A1 (en) | 2016-01-06 |
| WO2014131391A1 (en) | 2014-09-04 |
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Application publication date: 20151202 |