EP1914381A1 - Dispositif d'alimentation, en particulier destinée à l'alimentation de carburant pour un appareil de chauffage de véhicule - Google Patents

Dispositif d'alimentation, en particulier destinée à l'alimentation de carburant pour un appareil de chauffage de véhicule Download PDF

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Publication number
EP1914381A1
EP1914381A1 EP07018128A EP07018128A EP1914381A1 EP 1914381 A1 EP1914381 A1 EP 1914381A1 EP 07018128 A EP07018128 A EP 07018128A EP 07018128 A EP07018128 A EP 07018128A EP 1914381 A1 EP1914381 A1 EP 1914381A1
Authority
EP
European Patent Office
Prior art keywords
housing
wall
conveying device
rotation
annular piston
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.)
Granted
Application number
EP07018128A
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German (de)
English (en)
Other versions
EP1914381B1 (fr
Inventor
Michael Humburg
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
Original Assignee
J Eberspaecher GmbH and Co KG
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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP1914381A1 publication Critical patent/EP1914381A1/fr
Application granted granted Critical
Publication of EP1914381B1 publication Critical patent/EP1914381B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston 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
    • 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
    • F04C2/356—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 outer member
    • F04C2/3566—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 outer member the inner and outer member being in contact along more than one line or surface

Definitions

  • the present invention relates to a conveyor, in particular for conveying fuel to a vehicle heater.
  • a rotary piston pump in which a rotary piston is arranged in a housing with a cylindrical and coaxial with an axis of rotation inner peripheral surface.
  • the rotary piston has in the circumferential direction successively a plurality of elongated in the direction of the rotation axis elevation areas, which extend up to the inner peripheral surface of the housing, so that between each circumferentially immediately consecutive survey areas a delivery volume range is formed.
  • the rotary piston is carried on a drive shaft extending into the housing which is to be driven for rotation by a drive arranged outside the housing or axially following the housing.
  • a conveying device in particular for conveying fuel to a vehicle heater, comprising a housing with a housing outer wall substantially concentric with a rotation axis and a housing inner wall substantially concentric with the axis of rotation, wherein an annular space is formed between the housing outer wall and the housing inner wall one disposed in the annulus rotatable about the axis of rotation
  • Annular piston which lies with its radially inner region in the region of an outer peripheral surface of the housing inner wall and in its radially outer region has a plurality of circumferentially successive and elongated in the direction of the rotation axis elevation areas which end in the region of an inner peripheral surface of the housing outer wall, wherein between each two in the circumferential direction successive elevation areas a delivery volume range is formed, and an electric drive arrangement having a substantially arranged in a space surrounded by the housing inner space region and a stator arrangement rotatable with the annular piston and can be brought into magnetic interaction with the stator assembly rotor assembly
  • the annular piston which rotates in the conveying operation about the axis of rotation not supported on a festgekoppelten with this and driven for rotation shaft, but is enclosed in the annular space formed between the housing outer wall and the Gerissauseinnenwandung and without any fixed coupling to a Drive shaft rotatable.
  • the drive is effected by the magnetic interaction between the likewise within the housing, namely in the space enclosed by the Gezzauseinnenwandung space arranged stator assembly with the annular piston provided on the rotor assembly.
  • the stator assembly may comprise a plurality of armature / coil regions providing a star-like configuration, which armature / coil regions may be oriented such that when excited in a radially outer end region thereof, depending on polarity, a north magnetic pole or a south magnetic pole arises.
  • the rotor arrangement comprises a plurality of provided on the annular piston near the outer peripheral surface of the housing inner wall and in the circumferential direction successive permanent magnet.
  • the annular piston can be mounted for example on an outer circumferential surface of the housing inner wall for rotation about the axis of rotation.
  • sealing elements are provided in the raised areas, which seal against the inner peripheral surface of the housing outer wall.
  • the annular piston is mounted with its elevation regions on the inner peripheral surface of the housing outer wall for rotation about the axis of rotation.
  • a substantially fluid-tight completion of winningvolumemn Schemee is generated at the same time.
  • At the radially inner region of the annular piston can then have a small, gap-like gap to the outer surface of the housing inner wall, which avoids over-determination and thus constraints, while ensuring a sufficiently strong magnetic interaction between the stator and the rotor assembly.
  • At least one inlet channel is open through the housing outer wall to the annular space and at least one outlet channel is open through the housing outer wall to the annular space.
  • a radially movable slide following in the circumferential direction on the at least one outlet channel is prestressed against an outer surface of the annular piston.
  • the circumferential distance of the region in which the at least one inlet channel is open to the annulus, to the region in which the at least one outlet channel is open to the annulus is greater than the circumferential distance of the apex regions of two in the circumferential direction immediately following survey areas. In this case, it is ensured that the at least one inlet channel and the at least one outlet channel can not come into direct contact in any rotational positioning of the annular piston over a delivery volume range.
  • the structure can be kept very simple on the one hand, but it is ensured that only in a single area, namely where the two housing elements rest against one another a tight conclusion must be taken care of.
  • FIG. 1 to 3 show a conveyor 10 constructed according to the invention, with which, for example, liquid fuel can be passed from a fuel reservoir to a burner of a fuel-fired vehicle heater.
  • the conveyor 10 comprises a generally designated 12 housing, which, as seen in Fig. 3, are composed of two housing elements 14 and 16. These two housing elements 14 and 16 are attached to one another to a rotation axis R, for example, perpendicular separating plane E together and connected to each other, for example, by gluing, soldering, welding or other fluid-tight manner.
  • the two housing parts 14, 16 can be provided with a construction which is essentially identical to one another but mirror-symmetrical with respect to the parting plane E.
  • the housing 12 constructed with the two housing elements 14 and 16 has a housing outer wall 18 substantially concentric to the axis of rotation R and a housing inner wall 20, which is also concentric with the axis of rotation R. Between these two housing walls 18, 20, an annular space 22 is thus formed, in which an annular piston 24 is received.
  • Each of the housing elements 14, 16 further has an end wall 15, 17, wherein these end walls 15, 17 on the one hand close off the annular space 22 in the axial direction, and on the other hand complete a space region 52 formed radially inside the housing inner wall 20.
  • the annular piston 24 lies with its radially inner region of an outer peripheral surface 26 of the housing inner wall 20 opposite or is rotatably mounted on this outer peripheral surface 26.
  • the annular piston 22 has a plurality of circumferentially spaced apart and in the direction of the rotation axis R over the length of the annular piston 24 extending elevation regions 28. These raised areas 28 form in the circumferential direction between them depressions 30, which together with an inner peripheral surface 32 of the housing outer wall 18 limit delivery volume regions 34.
  • the raised portions 28 are dimensioned so that they have a small gap 36 to the inner circumferential surface 32. With very small dimensions of this gap 36, this may also be sufficient depending on the viscosity of the medium to be conveyed, in order to ensure a sufficiently fluid-tight completion of the delivery volume 34 with respect to each other. In addition, however, it is possible to provide radially outwardly open, gap-like depressions 38 in the elevation regions 28, as can be seen on the left in FIG. 1, in which a blade-like sealing element 40 is accommodated.
  • the medium to be pumped for example diesel fuel, in particular in contact of the elevation regions 28 or the sealing elements 40 to the inner peripheral surface 32, but also to the outer peripheral surface 20 before a lubricating effect.
  • An inlet channel 42 is open via an opening 44 to the annular space 22.
  • An inlet channel 46 immediately adjacent to the outlet channel 46 is open via a in the direction of movement or rotation of the annular piston 22 of the opening 44 immediately preceding opening 48 to the annulus.
  • a slider 50 is provided, which is pressed by the action of a biasing spring 52 radially inward and against the outer surface 54 of the annular piston 24.
  • the slider 50 also has the function that with progressive movement of the annular piston 24 by the system of the slider 50 on the outer surface 54, the available volume of the delivery volume range is getting smaller and thus the fluid contained therein must forcibly enter the outlet channel 46.
  • the slider 50 has an extension length in the direction of the rotation axis R, which approximately corresponds to the extension length of the annular piston 24 and the delivery volume regions 34.
  • an electric drive assembly To drive the ring piston 24 for rotation about the axis of rotation R, an electric drive assembly, generally designated 50, is provided.
  • the stator arrangement 54 has four armature / coil areas 56, 58, 60, 62 arranged at an angular distance of 90 ° from one another. Each of these armature / coil areas 56, 58, 60, 62 can be energized by energization so that either a magnetic north pole or a magnetic south pole is generated in its radially outer and the Gescouseinnenwandung 20 immediately adjacent area.
  • an alternating distribution of magnetic north poles and magnetic south poles of the stator arrangement 54 can also be generated, for which it is advantageous if the number of armature / coil areas corresponds to an even number.
  • a rotor assembly 64 provided on the annular piston 24 includes four permanent magnets 66, 68, 70, 72. These may be embedded in the building material of the annular piston 24 and, for example, may also provide a portion of the inner circumferential surface thereof due to their curved configuration. It can be seen in FIG. 1 that the number of permanent magnets corresponds to the number of armature / coil areas, and that the circumferential extent of the permanent magnets likewise corresponds approximately to the circumferential extent of the radially outer areas of the armature / coil areas.
  • the electric drive assembly 50 for moving the annular piston 24 about the axis of rotation R will be explained below with reference to FIGS. 4 to 8.
  • FIGS. 4 to 8 show in a schematic manner, the radially outer portions of the armature / coil portions 56, 58, 60, 62 and provided on the annular piston permanent magnets 66, 68, 70, 72.
  • Fig. 4 is the 1, in which, for example, the permanent magnet 66 is located radially outward of the armature / coil area 56 and approximately centered in the circumferential direction.
  • each of the armature / coil regions 56, 58, 60, 62 is approximately concentric with one of the permanent magnets 66, 68, 70, 72 in the circumferential direction.
  • the polarity of the permanent magnets is as shown in Fig. 4.
  • the magnetic poles of the permanent magnets 66, 68, 70, 72 are thus consecutive in the circumferential direction, wherein in each case at the circumferential ends of two immediately successive permanent magnets each of the same magnetic pole is present.
  • the conveying device 10 is now to be put into operation on the basis of the positioning shown in FIG. 4, in such a way that the annular piston 24 rotates clockwise starting from the positioning which can also be seen in FIG. 1, then the stator arrangement 54 or its Anchor / coil portions 56, 58, 60, 62 are energized such that a magnetic south pole is generated radially outward at armature / coil portion 56, as well as at armature / coil portion 60, which is the armature / coil portion 56 is directly opposite.
  • the two other armature / coil areas 58, 62 are excited so that radially outward in each case a magnetic north pole is generated.
  • a magnetic interaction is generated which generates a propelling force in the clockwise direction.
  • the magnetic North pole of the permanent magnet 66 from the armature / coil portion 56 is attracted while the magnetic south pole of this permanent magnet 66 is repelled.
  • a corresponding interaction is also generated in the other pairings.
  • the annular piston 24 is set in motion, so that the circumferential centering of the paired permanent magnets and armature / coil areas is canceled.
  • the magnetic south pole of the permanent magnet 66 now moves closer to the magnetic north pole of the armature / coil region 58 and is attracted by this stronger.
  • the magnetic north pole of the permanent magnet 58 is attracted by the magnetic south pole of the armature / coil region 60, etc.
  • the armature / coil areas 56 and 60 now form a magnetic north pole radially outward, while the armature / coil areas 58 and 62 Form radially outside a magnetic south pole, for example, the magnetic south pole of the permanent magnet 66 from the magnetic south pole of the armature / coil portion 58 repelled in the circumferential direction, while the magnetic north pole of the permanent magnet 66 is attracted by the magnetic south pole of the armature / coil portion 58 ,
  • stator assembly and in a corresponding manner, the rotor assembly with a different number of stator / coil areas or permanent magnets, but preferably the number of permanent magnets and the number of anchors / Coil areas corresponds. The larger this number, the smoother the drive can be.
  • a configuration with only two armature / coil areas and correspondingly two permanent magnets is possible, which then have to provide the star-like configuration an angular distance of 180 °.
  • FIG. 9 A modified embodiment of a conveyor 10 according to the invention is shown in FIG. 9.
  • the annular piston 24 has a larger number of elevation regions 28 and consequently also a larger number of delivery volume regions 34 formed in the circumferential direction therebetween.
  • a configuration with six elevation regions 28 following one another in the circumferential direction and correspondingly also six depressions 30 or delivery volume regions 34 formed between them can be seen here. This leads to a homogenization of the delivered volume flow.
  • the stator assembly 54 and the rotor assembly 64 are constructed in the same manner as described above. It can be seen that the number of land areas 28 is completely independent of the number of permanent magnets of the rotor assembly 64 and, correspondingly, the number of armature / coil areas of the stator assembly 54.
  • the conveying device described above can be varied in various aspects, without departing from the advantageous embodiment of the positioning of the electric drive assembly 50 completely in the volume range enclosed by the housing 12.
  • the embodiment would be such that the elevation regions 28 abut with their vertices on this inner circumferential surface 32 and sliding along move this inner peripheral surface 32.
  • the medium to be delivered will provide a very beneficial lubricating effect here.
  • Radially inside the annular piston 24 then has a small distance to the outer peripheral surface 26 of the housing inner wall 20 in order to avoid constraints.
  • inlet channels 42 or openings 44 or / and a plurality of outlet channels 56 or openings 48 could then lie consecutively in the direction of the longitudinal axis, so that over a plurality of openings 44 distributed in the direction of the longitudinal axis or possibly a gap-like opening over the length of the annular piston 24 distributed more uniformly, the medium to be conveyed can enter into the delivery volume regions 34 and with appropriate design the outlet side can escape there.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
EP20070018128 2006-10-17 2007-09-14 Dispositif d'alimentation, en particulier destinée à l'alimentation de carburant pour un appareil de chauffage de véhicule Not-in-force EP1914381B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610048989 DE102006048989A1 (de) 2006-10-17 2006-10-17 Fördereinrichtung, insbesondere zum Fördern von Brennstoff zu einem Fahrzeugheizgerät

Publications (2)

Publication Number Publication Date
EP1914381A1 true EP1914381A1 (fr) 2008-04-23
EP1914381B1 EP1914381B1 (fr) 2012-11-14

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EP20070018128 Not-in-force EP1914381B1 (fr) 2006-10-17 2007-09-14 Dispositif d'alimentation, en particulier destinée à l'alimentation de carburant pour un appareil de chauffage de véhicule

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EP (1) EP1914381B1 (fr)
DE (1) DE102006048989A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3115610A1 (fr) * 2015-07-06 2017-01-11 HS Wroclaw Sp. z o.o. Pompe hydraulique
RU2817581C2 (ru) * 2022-04-05 2024-04-16 АКЦИОНЕРНОЕ ОБЩЕСТВО "Центральный научно-исследовательский институт автоматики и гидравлики" (АО "ЦНИИАГ") Пластинчатый насос многократного действия с автоматом разгрузки

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008048642A1 (de) * 2008-09-24 2010-04-01 WÜRZ, Raimund Rotationskolbenmotor und Verfahren zum Betreiben des Rotationskolbenmotors
DE102008048638A1 (de) * 2008-09-24 2010-03-25 WÜRZ, Raimund Elektrischer Generator und Verfahren zum Betreiben des elektrischen Generators

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE414448A (fr) *
GB191209282A (en) 1912-04-19 1913-04-10 Felix Albert Eisner Improvements in and relating to Fluid Pressure Motors of the Rotary Type.
DE414448C (de) 1923-08-29 1925-06-03 Augustin Seguin Rechenmaschine
DE2503575A1 (de) 1975-01-29 1976-08-05 Rolf Hoewing Mehrwegeventil
JPS6267286A (ja) 1985-09-20 1987-03-26 Kayaba Ind Co Ltd 電動式ベ−ポンプ
DE8708465U1 (de) 1986-06-19 1987-08-20 Eggers, Thies, 5253 Lindlar Drehkolbenpumpe
WO1993013296A1 (fr) 1991-12-20 1993-07-08 Rappenhoener Hans Richard Pompe a piston rotatif
JPH10184564A (ja) * 1996-12-26 1998-07-14 Aisan Ind Co Ltd 容積回転型ポンプ
JPH10184568A (ja) 1996-12-27 1998-07-14 Mitsubishi Heavy Ind Ltd スクロール圧縮機及びその背圧室圧力制御弁
GB2379482A (en) 2002-01-15 2003-03-12 Alexander Orestovich Monfor Hydraulic motor-generator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2250947A (en) * 1938-06-17 1941-07-29 Jr Albert Guy Carpenter Pump
DE2930694A1 (de) * 1979-07-28 1981-02-26 Bosch Gmbh Robert Verdraengerpumpe mit elektromagnetischem antrieb
DE19623242C1 (de) * 1996-05-30 1998-01-08 Luk Fahrzeug Hydraulik Sperrflügelpumpe

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE414448A (fr) *
GB191209282A (en) 1912-04-19 1913-04-10 Felix Albert Eisner Improvements in and relating to Fluid Pressure Motors of the Rotary Type.
DE414448C (de) 1923-08-29 1925-06-03 Augustin Seguin Rechenmaschine
DE2503575A1 (de) 1975-01-29 1976-08-05 Rolf Hoewing Mehrwegeventil
JPS6267286A (ja) 1985-09-20 1987-03-26 Kayaba Ind Co Ltd 電動式ベ−ポンプ
DE8708465U1 (de) 1986-06-19 1987-08-20 Eggers, Thies, 5253 Lindlar Drehkolbenpumpe
WO1993013296A1 (fr) 1991-12-20 1993-07-08 Rappenhoener Hans Richard Pompe a piston rotatif
EP0617753A1 (fr) * 1991-12-20 1994-10-05 Hans Richard Rappenhoener Pompe a piston rotatif.
JPH10184564A (ja) * 1996-12-26 1998-07-14 Aisan Ind Co Ltd 容積回転型ポンプ
JPH10184568A (ja) 1996-12-27 1998-07-14 Mitsubishi Heavy Ind Ltd スクロール圧縮機及びその背圧室圧力制御弁
GB2379482A (en) 2002-01-15 2003-03-12 Alexander Orestovich Monfor Hydraulic motor-generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3115610A1 (fr) * 2015-07-06 2017-01-11 HS Wroclaw Sp. z o.o. Pompe hydraulique
US10385850B2 (en) 2015-07-06 2019-08-20 Goodrich Actuations Systems Limited Hydraulic pump having a cylindrical roller within a housing having an inlet gallery and an outlet gallery formed in a circumferential outer surface of the housing
RU2817581C2 (ru) * 2022-04-05 2024-04-16 АКЦИОНЕРНОЕ ОБЩЕСТВО "Центральный научно-исследовательский институт автоматики и гидравлики" (АО "ЦНИИАГ") Пластинчатый насос многократного действия с автоматом разгрузки

Also Published As

Publication number Publication date
EP1914381B1 (fr) 2012-11-14
DE102006048989A1 (de) 2008-04-24

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