EP2783087B1 - Pompe de refroidissement réglable - Google Patents

Pompe de refroidissement réglable Download PDF

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Publication number
EP2783087B1
EP2783087B1 EP12766375.5A EP12766375A EP2783087B1 EP 2783087 B1 EP2783087 B1 EP 2783087B1 EP 12766375 A EP12766375 A EP 12766375A EP 2783087 B1 EP2783087 B1 EP 2783087B1
Authority
EP
European Patent Office
Prior art keywords
pump
flow
controllable
working
pump housing
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.)
Not-in-force
Application number
EP12766375.5A
Other languages
German (de)
English (en)
Other versions
EP2783087A1 (fr
Inventor
Franz Pawellek
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.)
Nidec GPM GmbH
Original Assignee
Nidec GPM 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 Nidec GPM GmbH filed Critical Nidec GPM GmbH
Publication of EP2783087A1 publication Critical patent/EP2783087A1/fr
Application granted granted Critical
Publication of EP2783087B1 publication Critical patent/EP2783087B1/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/161—Controlling of coolant flow the coolant being liquid by thermostatic control by bypassing pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more pumps
    • F04D13/14—Combinations of two or more pumps the pumps being all of centrifugal type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0027—Varying behaviour or the very pump
    • F04D15/0038—Varying behaviour or the very pump by varying the effective cross-sectional area of flow through the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/60—Control system actuates means
    • F05D2270/64—Hydraulic actuators

Definitions

  • the invention relates to a controlled via a pulley controllable coolant pump for internal combustion engines.
  • the catalysts also become effective, so that the aim is to further shorten this time window so as to ensure rapid activation of the catalysts.
  • the cylinder head should by no means flow through coolant.
  • switchable coolant pumps have been introduced in recent years with great success, which make it possible during the cold start phase to reduce the coolant flow leaving the pump to "zero".
  • a proven in practice design of this switchable coolant pump was also by the applicant in the WO 2009/143832 A2 disclosed.
  • split-cooling systems are currently being used increasingly.
  • the cylinder head and the cylinder block are supplied with individually regulated coolant volume flow via their own connections.
  • the cylinder block is preferably to experience higher coolant temperatures than the cylinder head.
  • the oil lubricated friction locations in the cylinder block i.e., the piston assembly and the crankshaft bearings
  • the invention is therefore based on the object to develop a driven via a pulley controllable coolant pump, which eliminates the aforementioned disadvantages of the prior art, while ensuring on the one hand by complete "zero leakage" optimum heating of the engine in the cold start phase, and at the same time with minimal equipment expense and with minimal space requirements, ie Even with very limited installation space for the coolant pump in the engine compartment, an individually adjustable flow through the cylinder head and cylinder block with coolant at low power allows both in the cold start phase as well as in continuous operation, to ensure optimal, tailored cooling of cylinder block and cylinder head, so that both the cylinder block as well as the cylinder head with optimal working temperatures can be controlled individually individually so that the friction loss, fuel consumption as well as the pollutant emission are significantly reduced in the entire working range of the engine, the solution to be developed in special designs in addition to the separate , Individually controlled coolant supply of the cylinder head and cylinder block, without great additional effort and space, while ensuring a continuous cooling of the exhaust gas recirculation
  • FIG. 1 shows the invention, controllable coolant pump in a design for individually controlled coolant supply of the cylinder head and cylinder block and simultaneous continuous coolant supply, for example, the exhaust gas recirculation, in a side view in a section, with the position of the valve spool in a central position.
  • a pump housing 1 with a flow inlet region 2 and a flow outlet opening 3 for the outlet of a controllable
  • an impeller 6 is rotatably arranged on the free, flow-side end of this pump shaft 5. Between the impeller 6 and the pump bearing 4 is the pump chamber rear wall. 7
  • a wall plate 8 is fixed to the housing.
  • a working cylinder 9 is arranged in which, a working piston 10 is arranged movable control pressure actuated.
  • the rear wall 12 of a valve spool 13 is arranged with an outer cylinder 14. This variably movable with the working piston 10 outer cylinder 14 now covers the outflow region 15 of the impeller 6 control pressure dependent.
  • a return spring 11 is arranged, which ensures accurate, repeatable positioning of the outer cylinder 14 at the outflow 15 of the impeller 6 dependent on control pressure.
  • This seal 18 prevents a flow around the valve spool 13 in the region of the outer edge 17 of the wall plate 8, thus allowing a separate pressure build-up in front of and behind the wall plate 8.
  • two further flow outlet openings 16 are arranged on the pump housing 1, the outlet volume flow emerging from one of the flow outlet openings 16 not being arranged is controllable, and here the continuous coolant supply of the exhaust gas recirculation is used.
  • the outlet volume flow emerging from the other flow outlet openings 16 can likewise be regulated in addition to the controllable volume flow emerging from the flow outlet opening 3.
  • the other flow outlet opening 16 from which an adjustable outlet volume flow exits in addition to the controllable volume flow exiting from the flow outlet opening 3, is connected via an outflow channel 21 to an outflow opening 22 arranged in the region of the rear wall 12 of the valve slide 13 in the pump chamber rear wall 7. wherein this outflow opening 22 is enclosed by a, with the valve spool 13 in its rear end position in operative connection passing, arranged in the pump chamber rear wall 7 ring seal 23.
  • the solution according to the invention makes it possible that, even in the front end position on the housing, adjacent outer cylinder 14 of the valve slide 13, i. in the outflow region of the impeller overlapping outer cylinder 14 of the valve spool 13, an unregulated coolant flow, as of course in any other position of the valve spool, along the inner wall of the outer cylinder 14 via the outlet port 20 into the exhaust passage 19, for cooling the exhaust gas recirculation, is ensured.
  • the two vg. controllable volume flows of the coolant pump according to the invention are incorporated according to the invention as follows in an individual flow through the cylinder head and cylinder block of an internal combustion engine.
  • the controllable volumetric flow emerging from the flow outlet opening 3 serves for the separate regulated coolant supply of the cylinder head, and the controllable outlet volumetric flow exiting from the controllable coolant pump according to the invention via the outlet opening 22 arranged in the pump chamber rear wall 7 serves for the separate, regulated coolant supply of the cylinder block.
  • control pressure in / in the working cylinder / s 9 for defining displacement of the valve spool 13 is generated by a arranged outside of the pump housing 1 working pump 25 and regulated by a valve disposed outside the pump housing 1 working valve 26.
  • valve spool 13 In the cold start phase, the valve spool 13 is first moved into the front end position, so that the outer cylinder 14 of the valve spool 13 rests against the housing.
  • This front end position of the valve spool ensures rapid engine warming during the cold start phase by the "standing water”, thus avoiding any unnecessary heat transfer, so that a rapid heating of all components of the engine is ensured in the cold start phase.
  • This positive effect is particularly effective when a so-called electric trailing pump is used in the cooling circuit, which is used for cooling thermally highly stressed components such as the turbocharger. Even with active after-run cooling, the stored heat of the engine block is retained and helps to reduce fuel consumption when restarting the engine.
  • FIG. 2 now shows the controllable coolant pump according to the invention FIG. 1 , with a continuous coolant supply to the exhaust gas recirculation via the outlet channel 19, with a now slightly different cut, in side view.
  • FIG. 2 now is the valve spool in its rear end position and is there, in its transition region from the outer cylinder 14 in the rear wall 12, the contact pressure of the return spring 11, arranged on the arranged in the pump chamber rear wall 7 ring seal 23, and so sealingly seals the in the pump chamber rear wall. 7 arranged outflow opening 22nd
  • FIG. 3 Now, another design of the controllable coolant pump according to the invention for individually controlled coolant supply of the cylinder head and cylinder block is shown in a section in the side view.
  • This in the FIG. 3 The solution presented represents a further development of that already described by the Applicant in the WO 2009/143832 A2 disclosed, and for years in practice proven design of a switchabledemittepumpe, in which the control pressure in the working cylinder 9 for the defined displacement of the valve spool 13 generated by a arranged in the pump housing 1 working pump 25, and is controlled by a arranged in the pump housing 1 working valve 26 ,
  • FIG. 3 shown solution now allows, as already in connection with the FIGS. 1 and 2 explains, a demand-independent individually regulated separate coolant supply of cylinder head and cylinder block.
  • valve spool 13 is analogous to FIG. 1 again in a middle position.
  • the Indian FIG. 3 also shown Wegmesssensor 24 ensures in operative connection with the arranged in the pump housing 1 working pump 25th and also arranged in the pump housing 1 working valve 26, by the exact detection of the respective working position of the valve disc 13 in conjunction with a precise control of the control pressure of the working pump 25, that the coolant supply of the cylinder head and cylinder block can be controlled individually depending on demand.
  • the illustrated design serves the controllable volume flow of the separate controlled coolant supply of the cylinder head emerging from the flow outlet opening 3, and the additional controllable outlet volume flow of a separate regulated coolant supply of the cylinder block also emerging from the controllable coolant pump according to the invention via the outlet opening 22 arranged in the pump chamber rear wall 7 ,
  • the cylinder block relative to the cylinder head can be driven in continuous operation with a higher coolant temperature, whereby both the pollutant emission as well as the friction losses and fuel consumption are significantly reduced in the entire working range of the engine.
  • the separate coolant supply of the cylinder head and cylinder block can be carried out with minimal equipment expense with minimum space requirement, i. Even with very limited installation space for the coolant pump in the engine compartment, guaranteed. At the same time a reliable operation of the valve spool is always guaranteed at very low drive power.
  • the illustrated design can without much additional space and effort in addition to the separate, individually controlled coolant supply of the cylinder head and cylinder block, by the arrangement of an outlet port 20 in the wall plate 8 and the connection this outlet connection 20 via an outlet channel 19 with a flow outlet 16 (analogous to the illustrations in FIGS FIGS. 1 and 2 ) by an uncontrollable outlet volume flow, the continuous cooling of the exhaust gas recirculation, (as already in connection with the FIGS. 1 and 2 explained).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Compressor (AREA)

Claims (5)

  1. Pompe de refroidissement réglable avec un carter de pompe (1) à une ou plusieurs parties, une zone d'arrivée de courant (2) et une ouverture de sortie de courant (3) pour la sortie du courant volumique de transport réglable, un arbre de pompe (5) dans/sur le carter de pompe (1) placé dans un palier de pompe (4) et entraîné par exemple par une poulie, une roue à palettes (6) fixe quant à la rotation disposée sur une extrémité libre et du côté du courant de cet arbre de pompe (5), une paroi arrière de chambre de pompe (7) disposée dans le carter de pompe (1) entre la roue à palettes (6) et le palier de pompe (4), une culasse murale (8) fixée rigidement sur le carter et placée entre la roue à palettes (6) et la paroi arrière de chambre de pompe (7) avec un ou plusieurs cylindre/s de travail (9) disposé/s dans le carter de pompe (1) dans lequel/lesquels un ou plusieurs piston/s de travail (10) mobile/s par actionnement à pression de commande est/sont disposé/s, sur lequel/lesquels la paroi arrière (12) d'un tiroir de soupape (13) avec un cylindre extérieur (14) est placée, lequel recouvrant de manière variable et selon la pression de commande la zone d'écoulement (15) de la roue à palettes (6), un ressort de rappel (11) étant disposé entre la culasse murale (8) fixée rigidement sur le carter et le/les piston/s de travail (10) mobile/s en direction longitudinale d'arbre de pompe voire le tiroir de soupape (13) relié au/aux piston/s de travail (10), caractérisée par le fait
    - que, sur le bord extérieur (17) de culasse murale (8), un joint (18) est disposé entre ce bord extérieur (17) et le cylindre extérieur (14) du tiroir de soupape (13), et
    - qu'une ou plusieurs ouverture/s de sortie de courant (16) supplémentaire/s est/sont disposée/s sur le carter de pompe (1), dont le courant volumique d'écoulement est de plus réglable, en plus du courant réglable provenant de l'ouverture de sortie de courant (3), et
    - que l'ouverture de sortie de courant (16) hors de laquelle sort le courant volumique d'écoulement réglable est reliée par le biais d'un canal d'écoulement (21) à une ouverture d'écoulement (22) disposée dans la paroi arrière de chambre de pompe (7) dans la zone de paroi arrière (12) du tiroir de soupape (13), l'ouverture d'écoulement (22) étant entourée par un joint annulaire (23) disposé dans la paroi arrière de chambre de pompe (7) et en liaison active avec le tiroir de soupape (13) dans sa position finale arrière.
  2. Pompe de refroidissement réglable selon l'exigence 1 caractérisée par le fait
    - que, sur le carter de pompe (1), une ou plusieurs ouverture/s de sortie de courant (16) supplémentaire/s est/sont disposée/s dont le courant volumique d'écoulement n'est pas réglable par rapport au courant volumique réglable provenant de l'ouverture de sortie de courant (3), et
    - que l'/les ouverture/s de sortie de courant (16), hors de laquelle/desquelles sort un courant volumique d'écoulement non réglable, est/sont reliée/s dans le carter de pompe (1) au moyen d'un canal de sortie (19) directement avec un manchon de sortie (20) disposé dans la culasse murale (8).
  3. Pompe de refroidissement réglable selon l'exigence 1 ou l'exigence 2 caractérisée par le fait qu'un capteur de mesure de trajet (24) est disposé dans le carter de pompe en direction de travail du tiroir de soupape (13).
  4. Pompe de refroidissement réglable selon une ou plusieurs des exigences 1 à 3 caractérisée par le fait que la pression de commande dans le/les cylindre/s de travail (9) destinée au déplacement défini du tiroir de soupape (13) est produite par une pompe de travail (25) disposée dans le carter de pompe (1) et régulée au moyen d'une soupape de travail (26) disposée dans le carter de pompe (1).
  5. Pompe de refroidissement réglable selon une ou plusieurs des exigences 1 à 4 caractérisée par le fait que la pression de commande dans le/les cylindre/s de travail (9) destinée au déplacement défini du tiroir de soupape (13) est produite par une pompe de travail (25) disposée hors du carter de pompe (1) et régulée au moyen d'une soupape de travail (26) disposée dans ou hors du carter de pompe (1).
EP12766375.5A 2011-09-09 2012-08-17 Pompe de refroidissement réglable Not-in-force EP2783087B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011113040A DE102011113040B3 (de) 2011-09-09 2011-09-09 "Regelbare Kühlmittelpumpe"
PCT/DE2012/000846 WO2013034126A1 (fr) 2011-09-09 2012-08-17 Pompe de refroidissement réglable

Publications (2)

Publication Number Publication Date
EP2783087A1 EP2783087A1 (fr) 2014-10-01
EP2783087B1 true EP2783087B1 (fr) 2016-10-12

Family

ID=45923501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12766375.5A Not-in-force EP2783087B1 (fr) 2011-09-09 2012-08-17 Pompe de refroidissement réglable

Country Status (6)

Country Link
US (1) US9528521B2 (fr)
EP (1) EP2783087B1 (fr)
CN (1) CN103946506B (fr)
BR (1) BR112014005412A2 (fr)
DE (1) DE102011113040B3 (fr)
WO (1) WO2013034126A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102017206939A1 (de) * 2017-04-25 2018-10-25 Mahle International Gmbh Mehrflutige Kühlmittelpumpe zum Fördern eines Kühlmittels

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DE102013011209B3 (de) * 2013-07-04 2014-01-23 Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt Regelbare Kühlmittelpumpe
DE102013018205B3 (de) * 2013-10-30 2014-06-18 Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt Regelbare Kühlmittelpumpe
DE102014009367B3 (de) * 2014-06-21 2015-03-05 Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt Regelbare Kühlmittelpumpe
EP3172445B1 (fr) 2014-07-21 2019-09-11 NIDEC GPM GmbH Pompe à réfrigérant munie d'une régulation intégrée
DE102015119092B4 (de) * 2015-11-06 2019-03-21 Pierburg Gmbh Verfahren zur Regelung einer mechanisch regelbaren Kühlmittelpumpe für eine Verbrennungskraftmaschine
US10323564B2 (en) * 2016-01-19 2019-06-18 GM Global Technology Operations LLC Systems and methods for increasing temperature of an internal combustion engine during a cold start including low coolant flow rates during a startup period
KR101874493B1 (ko) * 2017-03-17 2018-07-05 명화공업주식회사 워터펌프
KR101881029B1 (ko) * 2017-03-17 2018-07-25 명화공업주식회사 워터펌프
DE102017120191B3 (de) * 2017-09-01 2018-12-06 Nidec Gpm Gmbh Regelbare Kühlmittelpumpe für Haupt- und Nebenförderkreislauf
FR3071278B1 (fr) * 2017-09-18 2020-02-21 Sogefi Air & Cooling Dispositif de pompe a debit variable et circuit comprenant une telle pompe
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CN108019356A (zh) * 2017-12-28 2018-05-11 湖南泵阀制造有限公司 一种具有调流与截断功能的多功能离心泵及管路系统
KR102451915B1 (ko) * 2018-03-27 2022-10-06 현대자동차 주식회사 차량용 냉각수 펌프 및 이를 포함한 냉각 시스템
KR20200015244A (ko) * 2018-08-03 2020-02-12 현대자동차주식회사 차량용 냉각수 펌프, 이를 포함한 냉각 시스템 및 그 제어 방법

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017206939A1 (de) * 2017-04-25 2018-10-25 Mahle International Gmbh Mehrflutige Kühlmittelpumpe zum Fördern eines Kühlmittels

Also Published As

Publication number Publication date
CN103946506B (zh) 2017-03-29
CN103946506A (zh) 2014-07-23
WO2013034126A1 (fr) 2013-03-14
EP2783087A1 (fr) 2014-10-01
BR112014005412A2 (pt) 2017-04-04
US9528521B2 (en) 2016-12-27
DE102011113040B3 (de) 2012-04-26
US20140212267A1 (en) 2014-07-31

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