EP1260710A2 - Pompe de dosage pour système de chauffage - Google Patents

Pompe de dosage pour système de chauffage Download PDF

Info

Publication number
EP1260710A2
EP1260710A2 EP02011179A EP02011179A EP1260710A2 EP 1260710 A2 EP1260710 A2 EP 1260710A2 EP 02011179 A EP02011179 A EP 02011179A EP 02011179 A EP02011179 A EP 02011179A EP 1260710 A2 EP1260710 A2 EP 1260710A2
Authority
EP
European Patent Office
Prior art keywords
valve
pump
arrangement
pump device
fluid
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
EP02011179A
Other languages
German (de)
English (en)
Other versions
EP1260710A3 (fr
EP1260710B1 (fr
Inventor
Rolf Hartnagel
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 EP1260710A2 publication Critical patent/EP1260710A2/fr
Publication of EP1260710A3 publication Critical patent/EP1260710A3/fr
Application granted granted Critical
Publication of EP1260710B1 publication Critical patent/EP1260710B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
    • F04B7/06—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports the pistons and cylinders being relatively reciprocated and rotated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/042—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow

Definitions

  • the present invention relates to a metering pump device as it is for example in connection with auxiliary heaters or auxiliary heaters in motor vehicles Can be used.
  • a dosing pump device is known from DE 198 60 573 A1, at which has two valve spools and a pump spool by energizing one Solenoid can be moved.
  • the movement of this different, in itself organs that can be relocated independently of each other must be exactly on top of each other be coordinated, on the one hand, to ensure that the funding to be funded Liquid is reliably conveyed towards the outlet and not into the Inlet area flows back, and to make sure that too promoting fluid not directly from the inlet area in an undefined manner can flow into the outlet area.
  • valve slide and a pump slide positioned successively in their direction of movement and either by the same electromagnetic drive or in each case specifically associated with electromagnetic drives in Movement can be moved.
  • movement must be defined of these various organs are to ensure that the Valve function on the one hand and the pump function on the other hand each other are superimposed on a defined, metered fluid flow from the inlet area can flow to the outlet area.
  • Already minor coordination inaccuracies can deviate from the desired delivery rate entail what the operating characteristics of the with the fluid too supplying system, for example one to be supplied with fuel Heater, can adversely affect.
  • Dosing pump device in particular for a heater to provide the is able to deliver a desired delivery rate with high precision promote.
  • a Dosing pump device in particular for a heater, comprising a at least in some areas into a recess providing a pump chamber engaging valve / pump organ, the valve / pump organ is rotatable about an axis and a connection in a first rotational position between the pumping chamber and an outlet area and in one second rotational position a connection between an inlet area and the pumping chamber, and the valve / pumping element to allow the absorption of fluid to be pumped in the pumping chamber of the Inlet area and for dispensing fluid to be pumped from the pump chamber is movable in the outlet area in the direction of the axis.
  • valve / pump organ both the valve function and the pump function accepted.
  • valve function i.e. for optional connection a pump chamber with the inlet area or the outlet area
  • pump function So to change the volume of the pumping chamber and either The valve / pump organ is released or absorbed by fluid
  • Direction of the axis of rotation about which it is used to provide the valve function is rotated, moved. In addition to a very simple structure, this means also a significant reduction in the control effort and no need to coordinate the movements of different organs.
  • valve / pump organ for dispensing fluid from the Pump chamber when positioned essentially in the first rotational position Valve / pump organ the valve / pump organ from a first shift position to decrease the volume of the pumping chamber towards one second displacement position is movable. Furthermore, it is possible that to allow the absorption of fluid in the pump chamber at im Valve / pump element positioned essentially in the second rotational position the valve / pump organ from a second shift position to enlarge of the volume of the pumping chamber in the direction of a first displacement position is movable.
  • the valve / pump organ has a first fluid channel arrangement which, when the valve / pump organ is positioned in the first rotational position the connection between the pump chamber and the outlet area manufactures, and has a second fluid channel arrangement, which in the second rotary position positioned valve / pump organ the connection between the inlet area and the pump chamber.
  • the first fluid channel arrangement and / or the second fluid channel arrangement at least one elongated in the direction of the axis includes groove-like channel.
  • the control effort required to move the valve / pump element can be reduced by providing a biasing arrangement is, through which the valve / pump member in a predetermined rotation / displacement position is biased. In a particularly preferred embodiment it is then provided that in the predetermined rotation / displacement position positioned valve / pump organ this in the second Rotational position and the first shift position.
  • provision can be made to generate this pretensioning effect be that the biasing arrangement at least partially as a coil spring trained spring element comprises.
  • the actuation of the valve / pump organ i.e. H. the movement of the same to Performing the valve function or performing the pump function, can, for example, by an actuation arrangement assigned to the valve / pump organ respectively.
  • an actuation arrangement assigned to the valve / pump organ respectively.
  • Biasing arrangement for biasing the valve / pump element in a defined position it can be provided that by the actuation arrangement the valve / pump organ against the biasing action the biasing arrangement for performing a rotary movement from the second rotary position to the first rotary position and a sliding movement from the first shift position to the second shift position is drivable.
  • the actuation arrangement can act electromagnetically and can, for example be designed such that they are connected to the valve / pump element movable anchor assembly and a substantially fixed Coil / pole piece arrangement essentially comprises one Generation of the rotary movement of the valve / pump element with the armature arrangement cooperating first pole piece arrangement and one essentially to generate the displacement movement of the valve / pump organ with the armature arrangement interacting second pole shoe arrangement.
  • the first pole piece arrangement with respect to the second pole piece arrangement has a rotational offset and / or axially with respect to this is offset.
  • the metering pump device 10 comprises a body 12, in which, for example through an insert 14 one on one axial side - apelogen on an axis A - open and a pump chamber 16 providing recess 18 is formed.
  • a valve / pump rotary valve 20 used with a tight fit, so that he ultimately the Recess 18 is essentially fluid-tight and with its axial Face 22 of the pump chamber 16 to the axially open side of the recess 18 limited.
  • the Valve / pump rotary valve 20 in the recess 18 both around the axis A rotatable and adjustable in the direction of the axis A.
  • the valve / pump rotary valve in the following only Called rotary valve, in adaptation to the shape of the recess 18 have a circular outer peripheral contour.
  • an inlet area In the body 12 is an inlet area, generally designated 24 educated. This includes a first opening or bore 26 in the area an inlet opening 28 is open to a fluid supply. A second opening or bore 30, which is essentially in the insert 14 is formed, on the one hand opens into the recess 18 and on the other hand opens into one connecting the two openings or bores 28, 30 Opening area 32 with larger dimensions.
  • a valve arrangement 34 is provided, which, for example a valve ball 36 pressed onto a valve seat by spring preload includes. This valve arrangement 34 thus essentially forms a Backflow of fluid from the pump chamber 16 into the inlet area 24, in particular the opening of the bore 26 of the same, preventing check valve.
  • An outlet area 38 of the metering pump device 10 comprises in the Body 12 has an opening or bore 40 which is on its outside open end in a closed by a housing 42 or the like Volume area 44 opens.
  • an opening or Bore 46 provided which is approximately at the same axial level in the recess 18 flows into.
  • a valve assembly generally designated 48 provided, which in turn by spring preload on a valve seat can include preloaded valve ball 50.
  • This valve arrangement 48 in turn forms a check valve that reliably prevents Fluid from the outlet area 38, in particular the opening or bore 40 of the same, flows back into the recess 18 or the pump chamber 16,
  • An outlet line 52 leads further from the volume region 40 the system to be supplied with the fluid, for example one with Fuel to be supplied to the heater of an auxiliary heater of a vehicle.
  • this sits in the area of an anchor 54 carried thereon with a sealing element 56 on the outlet line 52 and thus also ensures there a tight conclusion.
  • FIG. 2 it can be seen that the two open into the recess 18 Openings or bores 30, 46 which are approximately the same axial level, are essentially directly opposite each other and thus have an angular offset of 180 °.
  • Each of these two Openings 30, 46 are assigned to each in the rotary valve 20 extending essentially in the direction of the axis A, toward the end face 22 open and open radially outward, providing a fluid flow channel groove-like depression 58, 60 provided.
  • the length of these channels 58, 60 is such dimensioned that regardless of the position of the rotary valve 20 with appropriate rotational positioning of the rotary valve 20, the openings 30, 46 always open into the assigned channels 58 and 60, respectively can.
  • a biasing spring 62 is assigned to the rotary valve 20.
  • This is as Screw leg spring trained and ensures by their kind Helical compression spring trained central area 64 for that by Support on the body 12 on the one hand and on the anchor 54 on the other hand Rotary slide 20 axially biased into the position shown in FIG. 1 in which it is at its maximum extent from the recess 18 is moved out and with the sealing element 56 on the outlet line 52 seated.
  • the two legs 66, 68 are circumferential with respect to the Axis A is supported on the body 12 on the one hand and on the armature 54 on the other hand and take care of the torsion of the spring 62, that the rotary slide valve 20 is in the rotary position shown in FIGS.
  • the actuation arrangement 70 shown schematically in FIGS. 11a and 11b includes the one already mentioned and coupled to the rotary valve 20 Armature 54. Furthermore, one is connected to a coil, not shown standing yoke 72 provided.
  • the yoke 72 has two pairs of each other with pole shoes 74, 76 and 78, 80 opposite each other on. 11a that the two pairs of pole shoes can be seen 74, 76 and 78, 80 have an angular offset to one another.
  • the arrangement is such that in the second rotational position located rotary valve 20 and in a corresponding rotational position located anchor 54, which rotational position is shown in Fig.
  • the armature 54 with its long body axis B orthogonal to the axis A to the pole pieces 74, 76 is rotated in the range of about 45 ° while he to the pole shoes 78, 80 is rotated in the range of about 90 °.
  • the level lies like the pole shoes 74, 76 and therefore also due to them of the smaller angular misalignment has a smaller distance than to which are both more angularly offset and axially larger Pole shoes 78, 80 positioned at a distance.
  • the characteristic curve kinks c significantly and makes the displacement movement in the direction of the axis A up to Visible at point b.
  • the point b means the positioning of the rotary valve 20 in the second shift position and in the first Rotational position.
  • the aforementioned angular misalignment between the pole shoe pairs 74, 76 on the one hand and 78, 80 on the other makes a significant contribution to the kinked characteristic curve c since the pole shoe pair 78, 80 can essentially only become effective, if the first rotational position, that is to say in the illustration in FIG. 15, is an angle of rotation of 45 °. Because of the always in the first rotary position still existing angular misalignment between the armature 54 and the Pole shoes 78, 80 could still tend to over anchor to turn this first rotary position out. This can be done, for example the provision of a rotary stop can be counteracted.
  • the metering pump device is in FIG. 1 10 in a non-energized state of the actuator assembly as shown has been described above. That is, through pretension the spring 62 of the rotary valve 20 is in its first displacement position and its second rotary position. The entrance area is in this position 24 via the channel 58 in connection with the pump chamber 16, and by the fluid pressure (overpressure) prevailing in the inlet area 24 or the negative pressure prevailing in the pump chamber Check valve 34 is opened and fluid flows into pump chamber 16 or has already flowed in. Then the actuation arrangement excited, it generates, as on the basis of the characteristic curve c in FIG. 15 recognizable, initially essentially the armature 54 and the rotary valve 20 rotating force.
  • the dosing pump device 10 is then again in the position which can also be seen in FIG. 1, d. H. the rotary valve 20 is in the first shift position and the second rotary position.
  • the armature 54 or the sealing element carried thereon 56 sits on the outlet line 52 and closes it off.
  • the present invention provides a metering pump device which due to the fact that it has only one organ, that to provide the valve function and to provide the Pump function must be moved, very simple and very is easy to operate. Furthermore, through the interaction this single organ in particular with the two described Valve arrangements or check valves ensure that in the movements defined in different operating phases, for example Rotational movements or displacement movements occur. This will be particularly when the actuation arrangement is excited by the actuation characteristic the same still supported, so that especially during the transition from the first shift position and the second rotational position to the second Shift position and first rotary position a relief for that Valve arrangement assigned to the inlet area can be provided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
EP02011179A 2001-05-23 2002-05-21 Pompe de dosage pour système de chauffage Expired - Fee Related EP1260710B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10125222 2001-05-23
DE10125222A DE10125222A1 (de) 2001-05-23 2001-05-23 Dosierpumpeinrichtung, insbesondere für ein Heizgerät

Publications (3)

Publication Number Publication Date
EP1260710A2 true EP1260710A2 (fr) 2002-11-27
EP1260710A3 EP1260710A3 (fr) 2004-04-07
EP1260710B1 EP1260710B1 (fr) 2007-05-02

Family

ID=7685922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02011179A Expired - Fee Related EP1260710B1 (fr) 2001-05-23 2002-05-21 Pompe de dosage pour système de chauffage

Country Status (3)

Country Link
EP (1) EP1260710B1 (fr)
CZ (1) CZ304774B6 (fr)
DE (2) DE10125222A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1843039A3 (fr) * 2006-04-06 2011-08-31 Micropump Inc. Pompe à cylindre sans soupapes entraîné magnétiquement
WO2017207888A1 (fr) * 2016-06-01 2017-12-07 Psa Automobiles S.A. Procede de montage sous caisse d'un dispositif de pompe
CN111527307A (zh) * 2017-12-20 2020-08-11 森西勒医药股份公司 微型泵

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106401894A (zh) * 2016-12-13 2017-02-15 无锡书谱尔精密机械科技有限公司 双槽精密计量泵

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE47507C (de) * H. hassert in Magdeburg-Buckau, Martinstrafse 10 Kolbenpumpe ohne Ventile
US4059369A (en) * 1975-01-28 1977-11-22 Robert Bosch G.M.B.H. Fuel injection pump
US5312233A (en) * 1992-02-25 1994-05-17 Ivek Corporation Linear liquid dispensing pump for dispensing liquid in nanoliter volumes
DE19860573A1 (de) * 1998-12-29 2000-07-06 Eberspaecher J Gmbh & Co Brennstoffdosierpumpe für ein Heizgerät, insbesondere für einen Zuheizer oder eine Standheizung eines Kraftfahrzeuges

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3630528A1 (de) * 1986-09-08 1988-03-10 Klaus Hirsch Kolbenpumpe
DE4243866A1 (de) * 1992-12-23 1994-06-30 Thomas Magnete Gmbh Elektromagnetisch betriebene Pumpe
DE19528618A1 (de) * 1995-08-04 1997-02-06 Prominent Dosiertechnik Gmbh Verdrängerkolbenpumpe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE47507C (de) * H. hassert in Magdeburg-Buckau, Martinstrafse 10 Kolbenpumpe ohne Ventile
US4059369A (en) * 1975-01-28 1977-11-22 Robert Bosch G.M.B.H. Fuel injection pump
US5312233A (en) * 1992-02-25 1994-05-17 Ivek Corporation Linear liquid dispensing pump for dispensing liquid in nanoliter volumes
DE19860573A1 (de) * 1998-12-29 2000-07-06 Eberspaecher J Gmbh & Co Brennstoffdosierpumpe für ein Heizgerät, insbesondere für einen Zuheizer oder eine Standheizung eines Kraftfahrzeuges

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1843039A3 (fr) * 2006-04-06 2011-08-31 Micropump Inc. Pompe à cylindre sans soupapes entraîné magnétiquement
WO2017207888A1 (fr) * 2016-06-01 2017-12-07 Psa Automobiles S.A. Procede de montage sous caisse d'un dispositif de pompe
FR3052137A1 (fr) * 2016-06-01 2017-12-08 Peugeot Citroen Automobiles Sa Procede de montage sous caisse d'un dispositif de pompe
CN111527307A (zh) * 2017-12-20 2020-08-11 森西勒医药股份公司 微型泵
CN111527307B (zh) * 2017-12-20 2022-02-11 森西勒医药股份公司 微型泵

Also Published As

Publication number Publication date
EP1260710A3 (fr) 2004-04-07
CZ20021561A3 (cs) 2003-01-15
EP1260710B1 (fr) 2007-05-02
CZ304774B6 (cs) 2014-10-15
DE50210056D1 (de) 2007-06-14
DE10125222A1 (de) 2002-12-05

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