EP1589228B1 - Pumpe mit regelbarer Liefermenge - Google Patents

Pumpe mit regelbarer Liefermenge Download PDF

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Publication number
EP1589228B1
EP1589228B1 EP05103251A EP05103251A EP1589228B1 EP 1589228 B1 EP1589228 B1 EP 1589228B1 EP 05103251 A EP05103251 A EP 05103251A EP 05103251 A EP05103251 A EP 05103251A EP 1589228 B1 EP1589228 B1 EP 1589228B1
Authority
EP
European Patent Office
Prior art keywords
pump device
component
spindle
heat
temperature
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.)
Expired - Lifetime
Application number
EP05103251A
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English (en)
French (fr)
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EP1589228A1 (de
Inventor
Anthony Alves
Marco Gallino
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.)
Sogefi Air and Cooling SAS
Original Assignee
Mark IV Systemes Moteurs SAS
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Application filed by Mark IV Systemes Moteurs SAS filed Critical Mark IV Systemes Moteurs SAS
Publication of EP1589228A1 publication Critical patent/EP1589228A1/de
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Publication of EP1589228B1 publication Critical patent/EP1589228B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

Definitions

  • the present invention relates to the field of regulation, more particularly the regulation of the output of a liquid or viscous fluid, in relation to the use of a device for circulating said fluid, such as a pump or similar.
  • the object of the present invention is a pump device of which the output is a function of the temperature of the fluid delivered, at least within a predetermined temperature range.
  • a first known solution consists of measuring the temperature of the fluid by a suitable sensor and varying the speed of the motor driving the active component of the pump depending on the measured temperature, after processing the measured values.
  • a second known solution consists of measuring the temperature of the fluid by a suitable sensor and displacing or positioning an obstruction element depending on the measured temperature, to modify the pump's inlet and/or outlet section, to modify the useful surface of the active component, or to modify the characteristics of the chamber of the housing of said pump, it then being possible for the speed of the active component and its actuating means to remain constant.
  • documents DE19823603 and US6260515 disclose a pump according to the preamble of claim 1. Furthermore, such pumps require a bypass conduit to regulate the output of the pump device and also in this case production costs are relatively high.
  • the object of the present invention in particular is to overcome the aforementioned drawbacks
  • the present invention relates to a variable output pump device according to claim 1.
  • variable output pump device 1 comprises a housing 5, 5' and a movable component 2 capable of displacing a liquid fluid, said movable component being driven at a constant speed by a motor 3, a similar actuating means or a means of movement transmission, said movable component 2 being mounted in a chamber 4 of the housing comprising a supply passage or orifice 6 and an outlet passage 7, the output of the pump device 1 being variable depending on the temperature of the liquid fluid aspirated and delivered by said device, at least within a certain temperature range.
  • said pump device 1 also comprises a heat-sensitive component 8 mounted in the supply passage or orifice 6 or in the outlet passage 7, the apparent surface in a projection plane perpendicular to the fluid flow direction of said heat-sensitive component 8 being a function of the temperature of said fluid with which it is in direct contact.
  • variable output pump is achieved with an extremely simple structure (that is to say only slightly more complex than a constant output pump and that could possibly be manufactured easily from a constant output pump) and that does not require a variable actuator, the heat-sensitive component 8 fulfilling simultaneously the function of sensor, transducer and output regulating component.
  • heat-sensitive component existing standard components are favoured, advantageously those of simple design and low manufacturing cost, capable of directly transforming temperature variations into variations of position or form, according to a predetermined function, and that can possibly be adjusted according to the application envisaged and the variations desired.
  • Modification of the apparent surface of the heat-sensitive component 8, exposed to the fluid flow may be achieved by different physical variations, namely variation of position (pivoting a plate round a spindle), variation of external form (greater or lesser deployment of constituent parts), variation of volume (greater or lesser inflation), variation of internal form (greater or lesser restriction in the region of a traversing orifice arranged in the heat-sensitive component).
  • the heat-sensitive component 8 may comprise a body 9 forming an envelope or box, of which the external form changes depending on variations in the temperature of the fluid flow to which said component 8 is directly exposed, in particular the area of its apparent surface exposed to the fluid flow or obtained by projection in a plane perpendicular to the direction of said flow.
  • the heat-sensitive component 8 may comprise a body 9 forming an envelope or box of which the external form is such that its apparent surface exposed to the fluid flow or obtained by projection in a plane perpendicular to the direction of said flow varies if there is a displacement of said body 9 generated by and a function of a variation in temperature of said fluid to which said component 8 is directly exposed.
  • the heat-sensitive component 8 may comprise a part 9, if applicable a body 9 forming an envelope or box, for example of non-regular, non-symmetrical structure or provided with excrescence(s), mounted moving round a spindle, the degree of pivoting or the position in rotation round said spindle being a function of the temperature of the fluid to which said heat-sensitive component 8 is directly exposed.
  • the heat-sensitive component to be basically composed of at least two parts 9 and 9' of different section and assembled together telescopically, said component 8 being mounted transversally in the outlet passage 7 and the telescopic structure forming it being retracted for low temperatures, with maximum obstruction of the outlet passage 7 by the part 9 of larger section, and deployed for higher temperatures, with total or partial displacement of the part 9 of greater section outside said passage 7 and exposure to the fluid flow traversing said passage 7 of the part(s) 9' of smaller section.
  • the telescopic structure of the heat-sensitive component 8 is subject to an elastic constraint loading it in its state of maximum retraction, the temperature-sensitive actuating means of the component 8 (for example wax) acting positively against said elastic constraint with a magnitude corresponding to the magnitude of the rise in temperature.
  • the component 8 may consist of a wax actuator, also known currently as a thermostatic element or wax plug, comprising, on the one hand, a cylindrical box body 9 enclosing a predetermined quantity of wax forming the temperature-sensitive actuating means of which the melting temperature is substantially equal to the lower temperature of the active regulation range and, on the other hand, a spindle 9' mounted moving in translation in said box body 9, between a position of maximum retraction and a position of maximum extension, and of which the position in translation is determined by the condition of the wax.
  • a wax actuator also known currently as a thermostatic element or wax plug
  • Said wax actuator 8 is mounted in said outlet passage 7 of the chamber 4 of the pump device 1 with the free end 9" of the spindle 9' mounted fixed in a side recess 10 of the wall 10' of said passage 7 and its box body 9 mounted sliding in a bearing 11 of the housing, said box body 9 being subject to an elastic load in the direction of the free end 9" of the spindle 9'.
  • the pump device 1 may comprise a preassembled module 12 incorporating a box 13 comprising a compression spring 14 applying an elastic load to the box body 9 of the heat-sensitive component 8, or to a drive or support part 14' integral therewith, mounted sliding and coming to a stop in the position of maximum displacement in the action direction of the spring 14 and in that said module 12 is received sealed in a suitable recess arranged in the housing 5, 5' of the pump device 1.
  • a movable component 2 to consist of a finned wheel mounted on a rotating drive spindle 2' and for the housing to be formed principally of two complementary parts 5 and 5' assembled together and sealed in the region of a joint plane 5", the first part 5 having a totally or at least partly discoid cavity 15 in which the supply passage 6 and the outlet passage 7 open out and the second part 5' in the form of a cover closing said cavity 15 to delimit the chamber 4 and forming directly or indirectly a support for the rotating spindle 2' on which is mounted projecting the finned wheel 2, the supply passage 6 opening into the chamber 4 in the direction of the rotating spindle 2' and facing that spindle and the outlet passage 7 extending tangentially from the circular periphery of said chamber.
  • the outlet passage 7 is formed in the first constituent part 5 of the housing and the preassembled module 12 is mounted sealed by its box 5 in the second constituent part 5' forming a cover and by the end 9" of its spindle 9' movable in translation in a recess 10 of the wall 10' delimiting the outlet passage 7 of the first constituent part 5.
  • the outlet passage 7 is at least partially formed in a structural extension 16 of the second part 5' constituting the housing, which is nested and sealed in a corresponding reception recess 16' of the first constituent part 5, so as to delimit in part the chamber 4.
  • the preassembled module 12 is then mounted sealed by its box 13 in the second constituent part 5' and by the end 9" of its spindle 9' movable in translation in a recess 10 of the wall 10' delimiting the outlet passage 7 and forming part of said structural extension 16, the wax actuator 8 being thus permanently in contact over the whole of its external surface with the fluid.
  • FIG. 4 of the accompanying drawings shows a hybrid variant of the two aforementioned variants.
  • the driving of the spindle 2' of the movable component 2 may be produced by a belt, a chain or similar means of transmitting a rotating movement.
  • an electric motor 3 which may or may not be of variable speed, is mounted in the second part 5' forming a cover, its spindle 2' carrying the movable component 2 mounted fixed in rotation on this spindle.
  • the heat-sensitive component 8 consists of a shape-memorising part, mounted transversally in the supply 6 or outlet 7 passage and of which the apparent surface exposed to the flow of fluid varies, by changing the orientation or form of said part, depending on the temperature of said fluid in contact with it, at least within a predetermined temperature range.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Steroid Compounds (AREA)
  • Seal Device For Vehicle (AREA)
  • Reciprocating Pumps (AREA)
  • Temperature-Responsive Valves (AREA)

Claims (14)

  1. Regelbare Förderpumpenvorrichtung, umfassend ein bewegliches Bauteil (2), fähig zum Verdrängen eines flüssigen Fluids, wobei das bewegliche Bauteil (2) durch einen Motor, eine gleichartige Aktuatoreinrichtung oder eine Einrichtung zum Übertragen von Bewegung mit konstanter Geschwindigkeit angetrieben wird, das bewegliche Bauteil (2) in einer Kammer (4) eines Gehäuses befestigt ist, das einen Versorgungskanal oder eine Versorgungsöffnung (6) und einen Auslasskanal (7) umfasst, wobei die Fördermenge der Pumpenvorrichtung in Abhängigkeit von der Temperatur des von der Vorrichtung angesaugten und abgegebenen flüssigen Fluids wenigstens innerhalb eines bestimmten Temperaturbereichs regelbar ist und eine Pumpenvorrichtung (1) dadurch gekennzeichnet ist, dass sie außerdem ein wärmeempfindliches Bauteil (8) umfasst, befestigt in dem Versorgungskanal oder in der Versorgungsöffnung (6) oder in dem Auslasskanal (7), wobei die sichtbare Fläche in einer vorstehenden Ebene senkrecht zu der Richtung des Fluidstroms des wärmeempfindlichen Bauteils (8) eine Funktion der Temperatur des Fluids ist, mit dem sie permanent in direktem Kontakt ist, und dadurch, dass das wärmeempfindliche Bauteil (8) gleichzeitig die Funktion eines Sensors, eines Gebers und eines die Fördermenge regelnden Bauteils erfüllt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das wärmeempfindliche Bauteil (8) einen Körper (9) umfasst, der eine Ummantelung oder einen Behälter bildet, wovon die äußere Form so ist, dass sich ihre sichtbare Fläche, die dem Fluidstrom ausgesetzt ist, oder durch Vorstehen in eine Ebene senkrecht zu der Richtung des Stroms erhalten wird, ändert, wenn eine Verschiebung des Körpers (9) vorhanden ist, die durch und als eine Funktion einer Änderung der Temperatur des Fluids, dem das Bauteil (8) direkt ausgesetzt ist, erzeugt wird.
  3. Pumpenvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das wärmeempfindliche Bauteil (8) im Wesentlichen aus zwei Teilen (9 und 9') verschiedener Querschnitte und teleskopisch zusammengesetzt besteht, wobei das Bauteil (8) quer in dem Auslasskanal (7) befestigt ist und die teleskopische Struktur es für niedrige Temperaturen zurückgezogen, mit maximaler Blockierung des Auslasskanals (7) durch den Teil (9) größeren Querschnitts, und für höhere Temperaturen ausgefahren gestaltet, mit einer völligen oder teilweisen Verschiebung des Teils (9) größeren Querschnitts aus dem Kanals (7) und Aussetzen des Teils (9') kleineren Querschnitts gegenüber dem den Kanal (7) durchquerenden Fluidstrom.
  4. Pumpenvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die teleskopische Struktur des wärmeempfindlichen Bauteils (8) in ihrem Zustand des maximalen Rückzugs einer Federzwangsbelastung ausgesetzt ist, wobei die temperaturempfindliche Aktuatoreinrichtung des Bauteils (8) in einer Größenordnung kraftschlüssig gegen den Federzwang wirkt, die der Größenordnung des Anstiegs der Temperatur entspricht.
  5. Pumpenvorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass das wärmeempfindliche Bauteil (8) aus einem Wachsaktuator besteht, der einerseits einen zylindrischen Behälterkörper (9), der eine vorgegebene Menge an Wachs einschließt, das die temperaturempfindliche Aktuatoreinrichtung bildet, dessen Schmelztemperatur im Wesentlichen gleich der unteren Temperatur des aktiven Regulierungsbereiches ist, und andererseits eine Achse (9') umfasst, die in dem Behälterkörper (9) sich in Translation zwischen einer Position maximalen Rückzugs und einer Position maximalen Ausfahrens bewegend, befestigt ist und deren Translationsposition durch den Zustand des Wachses bestimmt wird, und dadurch, dass der Wachsaktuator (8) in dem Auslasskanal (7) der Kammer (4) der Pumpenvorrichtung (1) mit dem freien Ende (9") der Achse (9') fixiert in einer Seitenvertiefung (10) der Wand (10') des Kanals (7) befestigt ist, und sein Behälterkörper (9) in einem Lager (11) des Gehäuses gleitend befestigt ist, wobei der Behälterkörper (9) einer Federbelastung in Richtung des freien Endes (9") der Achse (9') ausgesetzt ist.
  6. Pumpenvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass es ein vormontiertes Modul (12) umfasst, das einen Behälter (13) einbezieht, der eine Kompressionsfeder (14) umfasst, die eine Federbelastung auf den Behälterkörper (9) des wärmeempfindlichen Bauteils (8) oder auf einen damit integralen Antriebs- oder Halteteil (14') anwendet, der gleitend befestigt ist und der in einer Position maximaler Verschiebung in der Wirkungsrichtung der Feder (14) zum Anschlag kommt, und dadurch, dass das Modul (12) abgedichtet in einer geeigneten Aussparung, die in dem Gehäuse (5, 5') der Pumpenvorrichtung (1) eingerichtet ist, aufgenommen wird.
  7. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das wärmeempfindliche Bauteil (8) einen Körper (9) umfasst, der eine Ummantelung oder einen Behälter bildet, wovon sich die äußere Form in Abhängigkeit von Änderungen der Temperatur des Fluidstroms, dem das Bauteil (8) direkt ausgesetzt ist, ändert, insbesondere der Bereich seiner dem Fluidstrom ausgesetzten oder durch Vorstehen in einer Ebene senkrecht zu der Richtung des Stroms erhaltenen sichtbaren Fläche.
  8. Vorrichtung nach Anspruch 1 oder 3, dadurch gekennzeichnet, dass das wärmeempfindliche Bauteil (8) einen Teil (9), gegebenenfalls einen Körper (9), der eine Ummantelung oder einen Behälter bildet, beispielsweise von nichtregelmäßiger nichtsymmetrischer Struktur oder mit Auswuchs/Auswüchsen versehen, umfasst, der sich um eine Achse bewegend befestigt ist, wobei der Schwenkgrad oder die Rotationsposition um die Achse eine Funktion der Temperatur des Fluids ist, dem das wärmeempfindliche Bauteil (8) direkt ausgesetzt ist.
  9. Pumpenvorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das bewegliche Bauteil (2) aus einem Flügelrad besteht, das auf einer Drehantriebsachse (2') befestigt ist, und dadurch, dass das Gehäuse hauptsächlich aus zwei Komplementärteilen (5 und 5') besteht, die in dem Bereich einer Verbindungsebene (5") zusammengesetzt sind und abgedichtet sind, wobei der erste Teil (5) einen vollständig oder wenigstens teilweise diskoidalen Hohlraum (15) aufweist, in den der Versorgungskanal (6) und der Auslasskanal (7) münden, und der zweite Teil (5') in Form einer Abdeckung den Hohlraum (15) verschließt, um die Kammer (4) zu begrenzen und direkt oder indirekt eine Halterung für die Drehachse (2') zu bilden, auf der das Flügelrad (2) vorstehend befestigt ist, wobei sich der Versorgungskanal (6) in die Kammer (4) in der Richtung der Drehachse (2') öffnet und dieser Achse und dem Auslasskanal (7), der sich tangential von dem Kreisumfang der Kammer erstreckt, gegenüberliegt.
  10. Pumpenvorrichtung nach Anspruch 6 und 9, dadurch gekennzeichnet, dass der Auslasskanal (7) in dem ersten Bestandteil (5) des Gehäuses ausgebildet ist und dadurch, dass das vormontierte Modul (12), abgedichtet durch seinen Behälter (5), in dem zweiten Bestandteil (5'), eine Abdeckung bildend, befestigt ist und durch das Ende (9") seiner Achse (9') in Translation in eine Aussparung (10) der Wand (10'), den Auslasskanal (7) in dem ersten Bestandteil (5) begrenzend, bewegbar ist..
  11. Pumpenvorrichtung nach Anspruch 6 und 9, dadurch gekennzeichnet, dass der Auslasskanal (7) wenigstens teilweise in einer strukturellen Erweiterung (16) des zweiten Teils (5'), das das Gehäuse bildet, ausgebildet ist, die in einer entsprechenden Aufnahmevertiefung (16') des ersten Bestandteils (5) eingebettet und abgedichtet ist, um teilweise die Kammer (4) zu begrenzen, und dadurch, dass das vormontierte Modul (12), abgedichtet von seinem Behälter (13), in dem zweiten Bestandteil (5') befestigt ist und durch das Ende (9") seiner Achse (9') in Translation in eine Aussparung (10) der Wand (10'), den Auslasskanal (7) begrenzend und Teil der strukturellen Erweiterung (16) bildend, bewegt werden kann.
  12. Pumpenvorrichtung nach einem der Ansprüche 10 und 11, dadurch gekennzeichnet, dass der Innenraum des Behälters (13) des vormontierten Moduls (12) zu der Kammer (4), die das bewegliche Bauteil (2) aufnimmt, offen ist und dem durch diese Kammer (4) zirkulierenden Fluidstrom ausgesetzt ist.
  13. Pumpenvorrichtung nach einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, dass ein Elektromotor (3) konstanter Drehzahl oder nicht konstanter Drehzahl in dem zweiten Teil (5'), das eine Abdeckung bildet, befestigt ist, wobei seine Achse (2') das bewegliche Bauteil (2) trägt, das rotationsfixiert auf dieser Spindel befestigt ist.
  14. Pumpenvorrichtung nach einem der Ansprüche 1, 7, 8 oder nach Anspruch 4, sofern er sich auf den Anspruch 1 bezieht, dadurch gekennzeichnet, dass das wärmeempfindliche Bauteil (8) aus einem Formerinnerungsteil besteht, das quer in dem Versorgungskanal (6) oder in dem Auslasskanal (7) befestigt ist und wovon sich die sichtbare Fläche, die dem Fluidstrom ausgesetzt ist, durch Änderung der Ausrichtung oder der Form des Teils, in Abhängigkeit von der Temperatur des Fluids mit dem es in Kontakt ist, wenigstens innerhalb eines vorgegebenen Temperaturbereichs ändert.
EP05103251A 2004-04-23 2005-04-21 Pumpe mit regelbarer Liefermenge Expired - Lifetime EP1589228B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0404346A FR2869370B1 (fr) 2004-04-23 2004-04-23 Dispositif de pompe a debit variable
FR0404346 2004-04-23

Publications (2)

Publication Number Publication Date
EP1589228A1 EP1589228A1 (de) 2005-10-26
EP1589228B1 true EP1589228B1 (de) 2008-04-09

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Application Number Title Priority Date Filing Date
EP05103251A Expired - Lifetime EP1589228B1 (de) 2004-04-23 2005-04-21 Pumpe mit regelbarer Liefermenge

Country Status (5)

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US (1) US20050238498A1 (de)
EP (1) EP1589228B1 (de)
AT (1) ATE391853T1 (de)
DE (1) DE602005005890T2 (de)
FR (1) FR2869370B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8734139B2 (en) 2010-07-01 2014-05-27 Micropump, Inc. Pumps and pump heads comprising volume-compensation feature
ITBS20130100A1 (it) * 2013-07-09 2015-01-10 Ind Saleri Italo Spa Pompa di raffreddamento regolabile per motore a combustione interna
DE112015004301B4 (de) 2014-09-22 2025-02-06 Industrie Saleri Italo S.P.A. Ventilgruppe mit axial bewegbarem Verschluss
DE102015000805B3 (de) * 2015-01-22 2016-01-21 Nidec Gpm Gmbh Regelbare Kühlmittelpumpe
DE102015208354B3 (de) 2015-05-06 2016-03-24 Magna powertrain gmbh & co kg Fluid-Fördersystem
FR3071278B1 (fr) 2017-09-18 2020-02-21 Sogefi Air & Cooling Dispositif de pompe a debit variable et circuit comprenant une telle pompe
KR20190072934A (ko) * 2017-12-18 2019-06-26 현대자동차주식회사 차량용 워터 펌프

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US1704481A (en) * 1926-08-17 1929-03-05 Worthington Pump & Mach Corp Rotary machine, particularly in centrifugal pump
US2462198A (en) * 1940-07-01 1949-02-22 Roger C Johnson Thermostatic valve
DE1910090A1 (de) * 1969-02-28 1970-11-05 Bosch Gmbh Robert Kraftstoffeinspritzpumpe fuer Brennkraftmaschinen
US4029074A (en) * 1975-12-04 1977-06-14 Robertshaw Controls Company Fuel valves
JPS5564460U (de) * 1978-10-27 1980-05-02
US4426196A (en) * 1981-09-16 1984-01-17 Hobourn-Eaton Limited Oil supply system
JPS60198386A (ja) * 1984-03-21 1985-10-07 Matsushita Electric Ind Co Ltd 能力可変圧縮機
US4789301A (en) * 1986-03-27 1988-12-06 Goulds Pumps, Incorporated Low specific speed pump casing construction
FR2681906B1 (fr) * 1991-09-27 1995-01-20 Renault Vehicules Ind Pompe centrifuge pour circuit de liquide de refroidissement de moteur a combustion.
FR2738203B1 (fr) * 1995-08-31 1997-09-26 Valeo Systemes Dessuyage Dispositif de projection de liquide de lavage a trois voies pour vehicule automobile
US6887046B2 (en) * 1996-02-26 2005-05-03 Flowork Systems Ii Llc Coolant pump, mainly for automotive use
DE19823603A1 (de) * 1998-05-27 1999-12-02 Behr Thermot Tronik Gmbh & Co Vorrichtung zum Steuern der Kühlmitteltemperatur eines Verbrennungsmotors eines Fahrzeuges
JP2000110561A (ja) * 1998-10-05 2000-04-18 Honda Motor Co Ltd エンジン用冷却装置
US6772958B1 (en) * 2003-04-28 2004-08-10 Rostra Precision Controls, Inc. Thermal flow control valve

Also Published As

Publication number Publication date
DE602005005890T2 (de) 2009-06-04
EP1589228A1 (de) 2005-10-26
US20050238498A1 (en) 2005-10-27
FR2869370A1 (fr) 2005-10-28
DE602005005890D1 (de) 2008-05-21
ATE391853T1 (de) 2008-04-15
FR2869370B1 (fr) 2008-08-22

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