CN103270305A - Feed pump - Google Patents

Feed pump Download PDF

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Publication number
CN103270305A
CN103270305A CN2011800640591A CN201180064059A CN103270305A CN 103270305 A CN103270305 A CN 103270305A CN 2011800640591 A CN2011800640591 A CN 2011800640591A CN 201180064059 A CN201180064059 A CN 201180064059A CN 103270305 A CN103270305 A CN 103270305A
Authority
CN
China
Prior art keywords
pump
magnet
rotor
pump rotor
driver element
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
Application number
CN2011800640591A
Other languages
Chinese (zh)
Inventor
R.福格特
H.施瓦布
B.蒙齐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of CN103270305A publication Critical patent/CN103270305A/en
Pending legal-status Critical Current

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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
    • F04C2/3442—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 surfaces of the inner and outer member, forming the working space, being surfaces of revolution
    • 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
    • F04C14/04—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for reversible machines or pumps
    • 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
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C15/0069—Magnetic couplings
    • 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
    • F04C15/0076—Fixing rotors on shafts, e.g. by clamping together hub and shaft
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/70—Safety, emergency conditions or requirements
    • F04C2270/701—Cold start

Abstract

The invention relates to a feed pump (1; 2; 3) having a drive unit (9; 11), a coupling unit, and a pump unit (10) comprising a pump rotor (13), wherein the coupling unit (12) couples the drive unit (12) to the pump rotor (13), wherein the pump rotor (13) is axially displaceably mounted and has a predefined displacement stroke (d), and the coupling unit is designed as a magnetic coupling (12), wherein a pole arrangement of the magnetic coupling (2) is selected such that, when the pump rotor (13) is blocked, the pump rotor (13) is displaced back and forth along the displacement stroke (d) in order to release the blockage of the pump rotor (13).

Description

Transfer pump
Technical field
The present invention relates to a kind of transfer pump, the pump unit that it has driver element, coupling unit and has pump rotor, wherein coupling unit is coupled driver element and pump rotor.
Background technique
Known transfer pump with motor and pump unit, wherein this motor comprises rotor and stator.The pump unit comprises the pump impeller that is configured to carry liquid.This pump impeller is connected with motor by axle, and wherein not only the rotor of pump impeller but also motor all flush is arranged in the liquid in the housing of transfer pump.This design has the following advantages, and namely can seal transfer pump simply.Yet needing instrument to be used for for example eliminating after long service time when pump rotor stops up stops up.
Summary of the invention
Task of the present invention provides a kind of transfer pump of improvement.
This task is resolved by claim 1.Favourable mode of execution obtains explanation in the dependent claims.
By the transfer pump that the present invention's proposition has driver element, coupling unit and has the pump unit of pump rotor, wherein coupling unit is coupled driver element and pump rotor.At this, described pump rotor axially can be supported movably with predetermined displacement distance.In addition, described coupling unit is configured to magnetic coupling, wherein so selects the electrode structure of described magnetic coupling, thereby move pump rotor along displacement distance when pump rotor stops up, to untie the obstruction of pump rotor.
This design proposal has realized that in simple mode pump rotor moves and so eliminate the obstruction of pump rotor along displacement distance concussion ground.Can save by this way for the obstruction of untiing pump rotor to the use of instrument and to the possible dismounting of transfer pump.Prevented the obstruction of driver element when in addition, magnetic coupling stops up in the pump unit.
In another embodiment, described magnetic coupling has the driven disc in the face of the pump unit, and wherein this driven disc has at least one driven magnet.This technological scheme has realized the simple structure of driver element and the magnetic coupling of transfer pump.
In another embodiment, described driver element has at least two windings, can so switch on to described winding, thereby make described winding that the magnetic field of rotation is provided.This technological scheme has realized driver element and pump unit and has been arranged in separating of wherein liquid.
In another technological scheme, described magnetic coupling has at least one and is arranged in pump magnet on the pump rotor, this pump magnet face is to the driven magnet of magnetic coupling and/or the winding of driver element, wherein pump magnet and driven magnet or winding are among effect is connected, to provide moment of torsion at pump rotor.This technological scheme has prevented when stopping up in the pump unit that driver element from stopping up and preventing thus the possible short circuit of the winding of driver element.
In another embodiment, the magnetic field of the rotation of the winding by driver element or the driven magnet that is among the rotation by magnetic coupling cause that pump rotor moves along displacement distance.This causes in second housing of pump unit pump rotor along the moving back and forth of displacement distance vibration, and wherein this motion is corresponding to the oscillating movement of pump rotor and so can simply and rapidly pump rotor be untied from its obstruction.
In another embodiment, the pump magnet of magnetic coupling and/or driven magnet configurations become permanent magnet.This technological scheme has realized the with low cost and durable structure of transfer pump.
In another embodiment, arrange a plurality of pump magnets and arrange a plurality of driven magnets at driven disc at pump rotor, wherein on pump rotor or driven disc, and wherein the quantity of the quantity of the utmost point of the pump magnet on the pump rotor and the utmost point on the driven disc is suitable with the polarity arrangement that replaces for the utmost point of pump magnet and driven magnet.This technological scheme has realized transmitting reliably on moment of torsion is from driver element to the pump unit.In addition, when stopping up, also caused reliably along the oscillatory movement of the mobile route of pump rotor.
In another embodiment, described pump unit structure becomes vane pump, and wherein said pump rotor has at least one recess that is used for blade.In the pump magnet of having arranged described magnetic coupling in the face of the end face of driver element of pump rotor at least one.This technological scheme is particularly suitable for the transfer pump in the vehicle structure or in the heating structure.
Description of drawings
Further explain the present invention below with reference to the accompanying drawings.Wherein:
Fig. 1 illustrates the schematic representation of first transfer pump;
Fig. 2 illustrates the schematic representation of second transfer pump; And
Fig. 3 illustrates the perspective view of vane pump under the state that part has been assembled.
Embodiment
Fig. 1 shows the schematic representation of first transfer pump 1.Coupling unit and pump unit 10 that first transfer pump 1 comprises first driver element 9 and is configured to magnetic coupling 12.First driver element 9 is configured to be designed to the brushless interior mover motor of internal rotor (Innenl ufer) in other words.At this, first driver element 9 comprises the winding 16 that is positioned at radially outer, and described winding radially comprises the rotor 18 that has first 28.First 28 of rotor 18 can be bearing in rotatably by means of clutch shaft bearing 15 in first housing 27 of first driver element 9.On first driver element 9 in the distolateral pump unit 10 of having arranged.
Pump unit 10 comprises the pump rotor 13 that has pump impeller 24.Pump impeller 24 is connected with second 23 and can be bearing in rotatably in second housing 26 by means of second bearing 14.Second housing 26 is in operation and fills with liquid 25.Yet can consider that also substituting liquid with gas or liquid-gaseous mixture fills second housing 26.At this, so design described pump rotor 24, make described pump rotor that liquid is carried to (unshowned) outlet from (unshowned) entrance of pump unit 10.Pump rotor 24 is fixedlyed connected with second 23 of pump rotor 24 in this embodiment.In second bearing 14, have predetermined possible displacement distance d, thereby make pump rotor 24 to move axially along the direction of arrow for second 23.
Magnetic coupling 12 comprises the driven disc 19 on first 28 that is fixed on rotor 18.Driven disc 19 is in the face of pump unit 10 and comprise outer cover 20 and be arranged in driven magnet 21 in the described outer cover.The driven disc 19 of magnetic coupling 12 is arranged in first housing 27 of driver element 9.With driven magnet 21 correspondingly, pump rotor 13 pump magnet 22 is set and it is arranged in pump impeller 24 in the face of on the side of driven disc 19.So select the electrode structure of driven magnet 21 and pump magnet 22 in this embodiment, make its quantity correspondingly equate.Driven magnet 21 and pump magnet 22 are also to arrange to corresponding axle 23,28 mutually the same distances.For the electrode structure under the assembling condition, arranged the opposite utmost point S of pump magnet 22 opposed to each other with the utmost point N of driven magnet 21.At this, opposite utmost point S, the N of pump magnet 22 and driven magnet 21 attract each other.If by first driver element 9 moment of torsion is provided on first 28 of driven disc 19, the attraction force of so driven magnet 21 by magnetic brought corresponding pump magnet 22 among its rotation, places among the rotation with the pump impeller 24 with pump rotor 13.If described pump impeller is placed by first driver element 9 among the rotation, pump impeller 24 is carried liquid so.
After long service time and/or owing to the dirt of liquid, pump rotor 13 can be fixed in second housing 26 and by dirt and stop up.In order to untie pump rotor 13 simply, pump rotor 13, as has already been mentioned above, can move described displacement distance d.Though if pump rotor 13 has stopped up first driver element 9 is switched on, first driver element 9 reverses so.This technological scheme can be avoided the short circuit current in the winding 16 of first driver element 9.
Electrode structure is such when pump impeller 13 stops up, and the fixed utmost point that is pump magnet 22 alternately is equipped with the opposite utmost point and the identical utmost point of driven disc 19.The opposite pump rotor 13 that extremely makes of driven magnet 21 is attracted towards the direction of driven disc 19.By being arranged on the possible displacement distance d in second bearing 14, pump rotor 13 is attracted and moves towards the direction of driven disc 19.Because pump rotor 13 stops up, thus can not with the opposite utmost point of driven magnet 21 together together with rotation.This makes, a rpm-dependent after the time driven magnet 21 contrast to pump magnet 22 opposed, described driven magnet has the identical utmost point of pump magnet 22.Thus, pump magnet 22 is open away from driven disc 19 ground together with pump rotor 13.This makes pump rotor 24 be in reverse to the movement direction of describing before as shown in Figure 1 and moves away from driven disc 19 ground along mobile route d.Because selected the electrode structure that has alter polarity of driven magnet 21 at driven disc 19, so go out vertically movement process along mobile route d vibration by the rotary inductive of driven disc 19 on pump rotor 13.Described movement process also can be described as the oscillating movement of pump rotor 13.This movement process or oscillating movement are used for untiing the dirt that reverses of block pumps rotor 13 and pump rotor 13 are rerunned after long stop time, and do not need extra instrument or dismounting pump unit 11.Except the axial vibration campaign, in pump rotor 13, also induce the moment of torsion that is used for untiing pump rotor 13 for driven pump rotor 13 and under blocked state normal in service at transfer pump 1.
Fig. 2 shows second transfer pump 2, and described transfer pump comprises that second driver element 11 replaces first driver element 9 shown in Fig. 1.Second driver element 11 comprises at least two windings 16 on the height that is arranged in pump magnet 22.This winding 16 also is connected with unshowned control apparatus or unshowned power supply, wherein so winding 16 is switched on, make to have the electrode structure that has consequent pole equally in the magnetic field of described winding 16 rotations and for example the electrode structure with driven disc 19 is identical.It is also conceivable that alternatively the number of poles of the winding 16 of driver element 11 is different from the number of poles of pump magnet 22.At this, like this directed described winding 16 makes magnetic fields point pump magnet 22.The winding 16 of driver element 11 is not only as the drive unit of pump unit but also as the parts of magnetic coupling 12, and the magnetropism Coupler is provided for pump rotor 13 is coupled to magnetic field on the driver element 11.
Design pump unit 10 as illustrated in fig. 1.At this, pump magnet 22 is placed under the magnetic field of rotation of driver element 9, thereby makes pump magnet 22 connect with magnetic field formation effect and rotate with the rotational speed in magnetic field.If pump rotor 13 is stopped up by dirt, so same as having illustrated among Fig. 1, the electrode structure that replaces magnetic field by winding 16 induces the oscillating movement of the displacement distance d on the pump rotor 13.Can untie the obstruction that is caused by dirt by this way.In addition, also as shown in fig. 1, on pump magnet 22 or at pump rotor 13, apply the moment of torsion that rotating magnetic field produces thereupon during the oscillating movement, and reaching reinforcement untiing the obstruction of pump rotor 13 thus.
Fig. 3 shows the perspective view as the vane pump 3 of transfer pump.Vane pump 3 comprises pump case 35, and described pump case has the inner space 32 that rotation is constructed symmetrically.In this inner space 32, be arranged in the pump rotor 24 shown in the symbol among Fig. 1 and 2 prejudicially.The pump impeller 24 of pump rotor 13 have a plurality of for vane pump typical recess 30 together with blade 31.Blade 31 is pressed onto on the inwall 33 of inner space 32 of pump case 35, with such conveying liquid and/or gas by centrifugal force in rotation.Pump rotor 13 has a pump magnet 22 that schematically shows distolateral in Fig. 1 and 2, described pump magnet alternately is arranged in its electrode structure.Above diagram shown in Figure 3, under the state that has assembled, arranged at first shown in Fig. 1 and 2 or second driver element 9,11 so that pump rotor 13 is in operation be among the rotation.In addition, the pump impeller 24 of pump rotor 13 by the oscillating movement described among Fig. 1 and 2 or by along the axial oscillation of displacement distance d move when stopping up simple and without instrument untied.
Transfer pump 1,2 or vane pump 3 with and the mode of execution of setting forth with reference to the accompanying drawings of assembly be preferred or exemplary mode of execution of the present invention.Except described and illustrated mode of execution, can imagine other other flexible program that can comprise the feature of describing or the mode of execution of combination.Especially to point out that shown pump magnet 22 or driven magnet 21 can be configured to permanent magnet or electromagnet.Scheme also can be considered as an alternative, the motor drive mechanism shown in Fig. 1 of first driver element 9 can be caused the outer mover external rotor (Au enl ufer) in other words that has/do not have brush.Especially to point out that the motor of first driver element 9 can be direct current generator, AC motor or three-phase alternating-current motor.
It is also conceivable that and replace the vane pump 3 shown in the accompanying drawing also can consider other pump type.Especially can consider the typical construction of gear pump, radial-flow pump or volute pump in order to construct pump unit 10.Yet it is important in this that, in moving axially path d, be bearing in movingly in the bearing with gear or the helical gear of driver element coupling, with the alternately magnetic field of the driven disc 19 by magnetic coupling 12 or the winding 16 on the pump magnet 22 when stopping up or cause the oscillating movement of vibration by the electrode structure of magnetic coupling 12.

Claims (7)

1. transfer pump (1; 2; 3), it has driver element (9; 11), coupling unit and the pump unit (10) that has pump rotor (13), wherein said coupling unit (12) is coupled described driver element (12) and described pump rotor (13), it is characterized in that, described pump rotor (13) axially can be supported movably with predetermined displacement distance (d) and described coupling unit is configured to magnetic coupling (12), wherein so select the electrode structure of described magnetic coupling (12), thereby when stopping up, described pump rotor (13) moves described pump rotor (13) along displacement distance (d), to untie the obstruction of described pump rotor (13).
2. by the described transfer pump (1 of claim 1; 3), it is characterized in that described magnetic coupling (12) has the driven disc (19) in the face of described pump unit (10), wherein said driven disc (19) has at least one driven magnet (21).
3. by the described transfer pump of claim 1 (2), it is characterized in that described driver element (11) has at least two windings (16), can so switch on to described winding, make described winding (16) that the magnetic field of rotation is provided.
4. by each described transfer pump (1 in the claim 1 to 3; 2; 3), it is characterized in that described magnetic coupling (12) has at least one and is arranged in pump magnet (22) on the described pump rotor (13), described pump magnet face is to driven magnet and/or the described driver element (9 of described magnetic coupling (12); 11) winding (16), wherein said pump magnet (22) and described driven magnet (21) or described winding (16) are among effect is connected, to provide moment of torsion at described pump rotor (13).
5. by the described transfer pump (1 of claim 4; 2; 3), it is characterized in that pump magnet (22) and/or the described driven magnet (21) of described magnetic coupling (12) are configured to permanent magnet.
6. by claim 4 or 5 described transfer pumps (1; 2; 3), it is characterized in that, arrange a plurality of pump magnets (22) and arrange a plurality of driven magnets (21) at described driven disc (19) at described pump rotor (13), the utmost point of wherein said pump magnet (22) and described driven magnet (21) is arranged on described pump rotor (13) or the described driven disc (19) with the utmost point that replaces, and the quantity of the quantity of the utmost point of the pump magnet (22) on the wherein said pump rotor (13) and the utmost point on the described driven disc (19) is suitable.
7. by each described transfer pump (1 in the claim 4 to 7; 2; 3), it is characterized in that described pump unit (10) is configured to vane pump (3), wherein said pump rotor (13) has at least one recess (30) that is used for blade (31), and wherein described pump rotor (13) in the face of described driver element (9; 11) at least one the pump magnet on the end face in the pump magnet (22) of the described magnetic coupling of layout (12).
CN2011800640591A 2010-11-04 2011-10-12 Feed pump Pending CN103270305A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE201010043391 DE102010043391A1 (en) 2010-11-04 2010-11-04 feed pump
DE102010043391.8 2010-11-04
PCT/EP2011/067762 WO2012059303A2 (en) 2010-11-04 2011-10-12 Feed pump

Publications (1)

Publication Number Publication Date
CN103270305A true CN103270305A (en) 2013-08-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011800640591A Pending CN103270305A (en) 2010-11-04 2011-10-12 Feed pump

Country Status (3)

Country Link
CN (1) CN103270305A (en)
DE (1) DE102010043391A1 (en)
WO (1) WO2012059303A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106640637A (en) * 2016-12-29 2017-05-10 宁波方太厨具有限公司 Two-way pump and steaming-cooking equipment water circuit structure applying two-way pump
CN107269547A (en) * 2017-07-12 2017-10-20 广东美的制冷设备有限公司 Pump assembly, dehumidifier and its control method of dehumidifier
CN110005589A (en) * 2018-01-04 2019-07-12 青岛海尔智能技术研发有限公司 Split type compressor and household electrical appliance

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GB2498925A (en) * 2012-01-06 2013-08-07 Richard Weatherley Vane pump with magnetic coupling
US20140064987A1 (en) * 2012-08-27 2014-03-06 Ecotech Marine, Llc Electromagnetic circulation pump
CN103821736A (en) * 2013-01-31 2014-05-28 李虹杰 Direct-current low-voltage outer-rotor typed brushless scraper pump
DE102015220657A1 (en) 2015-10-22 2017-04-27 Robert Bosch Gmbh Solution of a blockage in a pump
DE102017128098B4 (en) 2017-11-28 2023-07-20 Hoerbiger Automotive Komfortsysteme Gmbh Hydraulic system with a radial piston pump driven by an electric motor, with pump rotor and electric motor rotor, which are rotatably mounted on a common bearing journal on axes arranged parallel to one another and off-axis
BE1028023B1 (en) * 2020-01-31 2021-08-30 Safran Aero Boosters Pumping set

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Publication number Priority date Publication date Assignee Title
US4526518A (en) * 1981-07-23 1985-07-02 Facet Enterprises, Inc. Fuel pump with magnetic drive
DE3943369A1 (en) * 1989-12-30 1991-07-11 Fresenius Ag Encased medical gear pump - has pump wheel driven electromagnetically by stationary coil and rotating magnet on pump shaft
CN1185537A (en) * 1996-07-17 1998-06-24 光洋精工株式会社 Motor-driven hydraulic pump and driving coupling for same
WO2000029741A1 (en) * 1998-11-12 2000-05-25 Volvo Lastvagnar Ab Fuel delivery system
WO2007031709A1 (en) * 2005-09-16 2007-03-22 Edwards Limited Vacuum pump
WO2008000506A1 (en) * 2006-06-30 2008-01-03 Grundfos Management A/S Moineau type pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526518A (en) * 1981-07-23 1985-07-02 Facet Enterprises, Inc. Fuel pump with magnetic drive
DE3943369A1 (en) * 1989-12-30 1991-07-11 Fresenius Ag Encased medical gear pump - has pump wheel driven electromagnetically by stationary coil and rotating magnet on pump shaft
CN1185537A (en) * 1996-07-17 1998-06-24 光洋精工株式会社 Motor-driven hydraulic pump and driving coupling for same
WO2000029741A1 (en) * 1998-11-12 2000-05-25 Volvo Lastvagnar Ab Fuel delivery system
WO2007031709A1 (en) * 2005-09-16 2007-03-22 Edwards Limited Vacuum pump
WO2008000506A1 (en) * 2006-06-30 2008-01-03 Grundfos Management A/S Moineau type pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106640637A (en) * 2016-12-29 2017-05-10 宁波方太厨具有限公司 Two-way pump and steaming-cooking equipment water circuit structure applying two-way pump
CN107269547A (en) * 2017-07-12 2017-10-20 广东美的制冷设备有限公司 Pump assembly, dehumidifier and its control method of dehumidifier
CN107269547B (en) * 2017-07-12 2020-08-28 广东美的制冷设备有限公司 Pump body assembly of dehumidifier, dehumidifier and control method of dehumidifier
CN110005589A (en) * 2018-01-04 2019-07-12 青岛海尔智能技术研发有限公司 Split type compressor and household electrical appliance

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Publication number Publication date
WO2012059303A3 (en) 2013-05-23
DE102010043391A1 (en) 2012-05-10
WO2012059303A2 (en) 2012-05-10

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