EP2111498A1 - Pompe à réfrigérant réglable - Google Patents

Pompe à réfrigérant réglable

Info

Publication number
EP2111498A1
EP2111498A1 EP07846248A EP07846248A EP2111498A1 EP 2111498 A1 EP2111498 A1 EP 2111498A1 EP 07846248 A EP07846248 A EP 07846248A EP 07846248 A EP07846248 A EP 07846248A EP 2111498 A1 EP2111498 A1 EP 2111498A1
Authority
EP
European Patent Office
Prior art keywords
oil motor
pump
piston
oil
motor 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.)
Withdrawn
Application number
EP07846248A
Other languages
German (de)
English (en)
Inventor
Eugen Schmidt
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
Geraete und Pumpenbau GmbH
Geraete und Pumpenbau GmbH Dr Eugen Schmidt
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 Geraete und Pumpenbau GmbH, Geraete und Pumpenbau GmbH Dr Eugen Schmidt filed Critical Geraete und Pumpenbau GmbH
Publication of EP2111498A1 publication Critical patent/EP2111498A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • 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
    • F01C13/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01C13/04—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby for driving pumps or compressors
    • 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
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
    • F04C11/006—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle having complementary function
    • 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
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/185—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by varying the useful pumping length of the cooperating members in the axial direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • 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
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/04—Units comprising pumps and their driving means the pump being fluid driven
    • F04D13/043—Units comprising pumps and their driving means the pump being fluid driven the pump wheel carrying the fluid driving means
    • 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
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/04—Units comprising pumps and their driving means the pump being fluid driven
    • F04D13/046—Units comprising pumps and their driving means the pump being fluid driven the fluid driving means being a hydraulic motor of the positive displacement type

Definitions

  • the invention relates to a controllable coolant pump for internal combustion engines.
  • a direct coupling of the impeller of a coolant pump with the crankshaft of the internal combustion engine, for example a motor vehicle, has the consequence that the respectively conveyed coolant volume flow is determined by the rotational speed of the engine.
  • the coolant pump is designed so that even at low speed and high engine load - for example, when driving uphill with trailer - a sufficient cooling performance is achieved.
  • these non-controllable coolant pumps operate in average driving mode in a very low-efficiency operating point.
  • controllable coolant pumps for internal combustion engines are described in the prior art via a pulley driven by the crankshaft, controllable coolant pumps for internal combustion engines. Generally, it is characteristic of these designs that the maximum achievable
  • Speed of the impeller corresponds to the maximum speed of the pump shaft driven by the crankshaft.
  • Crankshaft driven coolant pumps can be reduced by a variety of technical means.
  • coolant pumps are known which are driven instead of a pulley or an electric motor of a separate, coupled instead of a pulley on the water pump hydraulic motor.
  • bypass lines are arranged by means of separate pilot valves.
  • Hydraulic motor protrudes, wherein the hydraulic motor in a
  • Hydraulic motor housing is arranged with a front side arranged on this lid.
  • the speed control which causes a control of the delivered coolant volume flow, is carried out by a temperature-controlled oil supply.
  • Gears is formed axially displaceable.
  • Coolant pump used analogous to the proposed in JP 63 117 118 A solution, so are for a controllable coolant pump drive turn additional assemblies with the resulting from additional modules
  • the invention is therefore based on the object to develop a continuously variable, driven by a hydraulic motor / oil engine coolant pump for motor vehicles, which allows almost “without” performance limitation increased cooling performance and also has a high overall efficiency while requiring a minimum space with minimized weight and at the same time easy and inexpensive to produce and also works reliably even under very high ambient temperatures and susceptible to interference. According to the invention this object is achieved by a continuously variable coolant pump for motor vehicles with the features of the main claim of the invention.
  • Figure 1 the inventive infinitely variable coolant pump for internal combustion engines in the side view in section (in A-A according to Figure 3);
  • Figure 2 the continuously variable coolant pump according to the invention for internal combustion engines according to Figure 1, in section along the center axis of the pump shaft 2;
  • FIG. 3 shows the continuously variable coolant pump according to the invention for internal combustion engines according to FIG. 1, in a section through the oil motor lying between the gear pair and the pressure relief bores 13;
  • FIG. 4 shows the continuously variable coolant pump according to the invention for internal combustion engines according to FIG. 1 in a section through the gear pair of the oil motor;
  • Figure 5 the detail of the oil motor of Figure 1, with the axis 9, the gear 7, the piston 16 and the reciprocating piston 23 in the working position of the reciprocating piston "fully open”.
  • FIG. 1 shows the continuously variable coolant pump according to the invention for internal combustion engines with a pump housing 1, one in FIG.
  • Pump housing 1 ends rotatably arranged on a pump shaft 2
  • the oil motor 4 consists of an oil motor housing 5 and a front side on the oil motor housing 5 arranged cover 6.
  • a pair of gears is arranged in the oil motor 4 such that one of the two gears 7 is rotatably mounted on the pump shaft 2, and that the other gear 7 is mounted rotatably and displaceably on a rotationally fixed in the oil motor housing 5 axis 9.
  • the pump shaft 2 is rotatably mounted in bearings 8 on both sides of the gear 7 on the one hand in the oil motor housing 5 and on the other hand in the cover 6.
  • bearings 8 are designed as plain bearings.
  • Blind holes 10 are arranged for pressure relief, wherein in the region of the inner end of the blind bores 10 each radial bores 11 are arranged which open in annular grooves 12 to each other in the
  • Oil motor housing 5 via pressure relief holes 13 are interconnected, wherein one of these pressure relief holes 13 via a
  • a cylindrical piston working space 15th is located in a slightly larger in its outer diameter relative to the outer diameter of the arranged on the axis 9 gear 7 larger working piston 16 is slidably mounted, wherein in the piston working space 15 between the cover 6 and the piston 16, a compression spring 17 is arranged at the engine stall the end wall 18 of the Working piston 15 in the outer edge region presses against this adjacent end face 19 of the oil motor housing 5 and thereby brings the rotatably mounted on the axis 9 gear 7 fully with the arranged on the pump shaft 2 gear 7 of the oil motor into engagement.
  • a pressure relief chamber 20 is arranged in which the end face arranged in the pump shaft 2 blind hole 10 opens.
  • a valve seat 22 is arranged such that this valve seat 21 cuts both the piston working chamber 15 and the pressure relief chamber 20, wherein in this valve seat 22 sealing a valve piston 23 is arranged by means of an outside the lid face 21 arranged lifting magnet 24 can be moved translationally in the valve seat 22.
  • FIG. 2 shows the explained features of the continuously variable coolant pump according to the invention for internal combustion engines, but now in a sectional view from below, along the center axis of the pump shaft 2 shown in FIG.
  • a feature of the solution according to the invention consists in the fact that the supply kidney connected to the oil inlet 25 is arranged such that it is partially located below the root circle of the toothed wheel 7 arranged on the axis 9.
  • FIG. 4 now shows the infinitely variable control according to the invention
  • Coolant pump for combustion engines in one (according to Figure 1) by the
  • Piston working space 15 protrudes.
  • Gear is engaged, that is applied to the rear wall 31.
  • the oil located between the gear and the rear wall 31 passes between the teeth, and via the arranged in the axis 9 blind hole 10, the radial bores 11, the annular grooves 12, the pressure relief holes 13 and the outlet opening 14, for example in the crankcase.
  • the impeller in this working position of the reciprocating piston 23, the impeller can be brought to a standstill, now flows, for example, under a pressure of 4 bar standing oil from the piston working chamber 15 via the open valve seat 22 in the acted example with a pressure of 1 bar pressure relief chamber 20 and there via the arranged in the pump shaft 2 blind hole 10, the radial bores 11, the annular grooves 12 in the pressure relief hole 13, and from there via the outlet opening 14, for example in the crankcase.
  • the "openings”, ie the ratio of the cross-section of the inlet orifice 28 to the flow cross-section with valve seat 22 fully opened by the lifting piston 23, are dimensioned such that more oil always flows out when the valve seat 22 is fully open.
  • the working piston 16 is relieved of pressure and due to the arrangement of the associated with the oil inlet 25 supply kidney, which according to the invention is arranged so that this area is also below the dominant Vietnamesees arranged on the axis 9 gear 7, now is arranged on the axis 9 gear 7 is pressed against the working piston 16 while the working piston 16 is moved against the action of the compression spring 16.

Abstract

L'invention concerne une pompe à réfrigérant réglable pour moteurs à combustion interne. L'objet de l'invention est la mise au point d'une pompe à réfrigérant réglable en continu pour véhicules automobiles, entraînée par un moteur hydraulique/moteur à huile, qui permette une capacité de refroidissement accrue quasiment sans limitation de puissance et qui présente en même temps un rendement total élevé, qui ne nécessite qu'un espace de construction minimal avec un poids propre minimal et soit en même temps simple et économique à fabriquer, et qui fonctionne en outre de manière fiable et sans être vulnérable aux pannes, même à des températures ambiantes très élevées. La pompe à réfrigérant réglable selon l'invention comprend un carter de pompe (1), et une roue à pales (3) disposée dans le carter de pompe (1) sur une extrémité d'un arbre de pompe (2) et solidaire en rotation avec ce dernier. L'extrémité de l'arbre de pompe (2) qui est opposée à la roue à pales (3) pénètre dans un moteur à huile (4). Une paire de roues dentées est disposée dans le moteur à huile (4) de telle sorte qu'une des deux roues dentées (7) est disposée en solidarité de rotation sur l'arbre de pompe (2). L'arbre de pompe (2) est monté rotatif dans des paliers (8), de part et d'autre de la roue dentée (7), d'une part dans le carter (5) de moteur à huile et d'autre part dans le couvercle (6). Selon l'invention, entre autres, la seconde roue dentée (7) est montée rotative et coulissante sur un axe (9) bloqué en rotation dans le carter (5) de moteur à huile. Au moins un manchon (29) pourvu d'un obturateur d'admission (28) est disposé dans le carter (5) de moteur à huile, manchon qui débouche par une extrémité, à l'opposé du rein d'alimentation relié à l'admission d'huile, dans le compartiment de roue (27) relié à l'admission d'huile et se termine à fleur de ce compartiment de roue (27). L'extrémité opposée du manchon (29), même lorsque le ressort de pression (17) est totalement comprimé, pénètre dans le compartiment de ressort de la chambre de travail de piston (15) restant présent derrière le piston de travail (16). Un siège de soupape (22) est disposé dans le côté frontal (21) du couvercle de telle sorte qu'il coupe à la fois la chambre de travail de piston (15) et la chambre de détente (20). Un piston de soupape (23) est disposé de manière étanche dans ce siège de soupape (22), piston qui peut être déplacé en translation dans le siège de soupape (22) au moyen d'un aimant de levage (24) disposé extérieurement sur le côté frontal (21) du couvercle.
EP07846248A 2007-01-27 2007-09-22 Pompe à réfrigérant réglable Withdrawn EP2111498A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710004187 DE102007004187B4 (de) 2007-01-27 2007-01-27 Regelbare Kühlmittelpumpe
PCT/DE2007/001719 WO2008089714A1 (fr) 2007-01-27 2007-09-22 Pompe à réfrigérant réglable

Publications (1)

Publication Number Publication Date
EP2111498A1 true EP2111498A1 (fr) 2009-10-28

Family

ID=39200049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07846248A Withdrawn EP2111498A1 (fr) 2007-01-27 2007-09-22 Pompe à réfrigérant réglable

Country Status (3)

Country Link
EP (1) EP2111498A1 (fr)
DE (1) DE102007004187B4 (fr)
WO (1) WO2008089714A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103277343B (zh) * 2013-06-26 2015-12-02 长城汽车股份有限公司 车辆内燃机冷却系统用水泵
DE102014003172A1 (de) * 2014-03-01 2015-09-03 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Elektromotorisches Pumpenaggregat
DE102014010416B3 (de) * 2014-07-14 2015-10-08 Nidec Gpm Gmbh Hydromotor zum Antrieb von Nebenaggregaten
CN104405576A (zh) * 2014-10-14 2015-03-11 孟庆龙 液压动力装置
DE102016121238B4 (de) 2016-11-07 2018-10-04 Nidec Gpm Gmbh Hydraulischer Antrieb, hydraulischer Motor und Pumpe mit dem hydraulischen Antrieb
DE102017102769B3 (de) 2017-02-13 2018-06-07 Nidec Gpm Gmbh Hybridantrieb für eine Kühlmittelpumpe
FR3113700B1 (fr) * 2020-08-26 2022-07-29 Renault Moteur à combustion interne comprenant une pompe à eau constitutive d’un circuit de refroidissement.
CN113202788B (zh) * 2021-06-18 2023-04-28 丰城市天壕新能源有限公司 一种用于干熄焦余热发电的智能除氧器给水泵

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Publication number Priority date Publication date Assignee Title
JPS62210287A (ja) 1986-03-12 1987-09-16 Aisin Seiki Co Ltd ウオ−タポンプ
JPS63117118A (ja) * 1986-11-06 1988-05-21 Aisin Seiki Co Ltd 内燃機関用ウオ−タポンプ
JPS6473109A (en) * 1987-09-14 1989-03-17 Nippon Denso Co Cooling system for vehicle
JPH0544467A (ja) * 1991-08-19 1993-02-23 Nippondenso Co Ltd エンジン用ウオータポンプ
DE4203381A1 (de) 1992-02-06 1993-08-12 Bosch Gmbh Robert Aggregat zum foerdern eines fluessigen mediums, insbesondere eines waermetraegers, in dem zu einem kraftfahrzeug gehoerenden kuehl-heizkreislauf
SE9501381L (sv) * 1995-04-13 1996-10-14 Volvo Ab Oljesystem för en vattenkyld dieselmotor
DE19701993A1 (de) 1997-01-22 1998-07-23 Eugen Dr Schmidt Pumpe, insbesondere Kühlmittelpumpe, für Kraftfahrzeuge
DE19752372A1 (de) 1997-11-26 1999-05-27 Guenther Dipl Ing Beez Regelbare Kreiselpumpe, insbesondere für Verbrennungsmotore
DE10012662B4 (de) 2000-03-15 2010-11-04 Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt Merbelsrod Kühlmittelpumpe mit elektrisch kommutiertem Elektromotor
DE10012663B4 (de) 2000-03-15 2012-08-02 Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt Merbelsrod Kühlmittelpumpe mit elektronisch kommutiertem Eletromotor
DE10128059C1 (de) 2001-06-09 2002-11-28 Geraete & Pumpenbau Gmbh Regelbare Kühlmittelpumpe
DE10314526B4 (de) 2003-03-31 2007-11-29 Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt Kühlmittelpumpe, insbesondere strömungsgekühlte elekrische Kühlmittelpumpe mit integriertem Wegeventil
DE102004028830A1 (de) * 2004-06-15 2005-12-29 Zf Friedrichshafen Ag Zahnradmaschine

Non-Patent Citations (1)

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Title
See references of WO2008089714A1 *

Also Published As

Publication number Publication date
DE102007004187B4 (de) 2008-09-25
WO2008089714A1 (fr) 2008-07-31
DE102007004187A1 (de) 2008-07-31

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