EP1591640B1 - Kühlungsdüse für die Heissstelle eines Kolbens einer Kraftfahrzeugbrennkraftmaschine - Google Patents

Kühlungsdüse für die Heissstelle eines Kolbens einer Kraftfahrzeugbrennkraftmaschine Download PDF

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Publication number
EP1591640B1
EP1591640B1 EP05290843A EP05290843A EP1591640B1 EP 1591640 B1 EP1591640 B1 EP 1591640B1 EP 05290843 A EP05290843 A EP 05290843A EP 05290843 A EP05290843 A EP 05290843A EP 1591640 B1 EP1591640 B1 EP 1591640B1
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EP
European Patent Office
Prior art keywords
endpiece
orifice
diameter
nozzle assembly
fact
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
EP05290843A
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English (en)
French (fr)
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EP1591640A1 (de
Inventor
Bertrand Paris
Alain De Pretto
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Ardepa
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Ardepa
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Publication date
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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
    • F01P3/00—Liquid cooling
    • F01P3/06—Arrangements for cooling pistons
    • F01P3/08—Cooling of piston exterior only, e.g. by jets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber

Definitions

  • the present invention relates to the cooling nozzles of a motor vehicle piston hot point or the like which comprise, in the engine block, a high pressure circuit of a lubricating fluid, such as oil or the like.
  • nozzles are essentially designed to be connected bypass on the high pressure circuit of the engine lubrication fluid.
  • they comprise a connector adapted to be connected to this high pressure circuit and an ejection nozzle connected to the connector by a conduit.
  • the pressurized fluid is then ejected at the nozzle outlet while being sprayed and directed towards the hot point of the piston to cool it.
  • the sprayed fluid is then recovered by flowing in the cover of this lubricating fluid, this tarpaulin serving in particular reserve and power source for the high pressure circuit.
  • the present invention is intended to provide a cooling nozzle, in particular a hot point of a motor vehicle engine piston or the like comprising, in the engine block a high pressure circuit of a fluid.
  • lubricating which at least partially overcomes the aforementioned drawbacks of the nozzles of the prior art, having a relatively low manufacturing cost, because easier to manufacture especially in large series, while giving total satisfaction on the plan of reliability.
  • the present invention relates to a cooling nozzle of a hot point of a motor vehicle engine piston comprising, in the engine block, a high pressure circuit of a fluid of lubrication, defined in accordance with the appended claim 1, the preamble of which is based on the characteristics disclosed by the JP 090 68 042 A mentioned above.
  • the nozzle according to the invention allows to cool, for example, a hot low point of a motor vehicle engine piston having, in the engine block B m , a high pressure circuit of a lubricating fluid.
  • the nozzle comprises, with reference more particularly to the Figures 1 to 5 a connection piece 1 comprising a through-hole 2 with an inlet 3 and an outlet 4, a connecting body 5 defining a fluid duct 6, a first end 7 of which is fluidly sealed to the outlet 4 of the through-hole, and an ejection nozzle 8 having a supply inlet 9 fluidly sealed to the second end 10 of the fluid conduit.
  • the cooling nozzle further comprises translational locking means 11 of the nozzle 1 when it is plugged into an orifice O ri made in the engine block B m , this orifice communicating with the high circuit lubricant fluid pressure, and a seal 12 mounted around the nozzle 1 adapted to cooperate with the side wall of the engine block B m when the tip is plugged into the orifice O ri , to thereby achieve a passage sealing between the outer side wall 13 of the nozzle and the inner wall of this orifice.
  • the translation locking means 11 of the nozzle 1 in the orifice O ri may be constituted by at least one of the means defined below.
  • these locking means 11 of the tip 1 comprise a split elastic ring 20, the slot being visible on the figure 2 and referenced 17.
  • This ring is mounted around the tip by enclosing it, the outer diameter of the ring being slightly greater than that of the orifice O ri so that the end bearing the ring is adapted to be plugged in. It is a force in the orifice O ri , the ring closing on itself while entering the orifice to be wedged by the elastic reaction which tends to open it.
  • these locking means 11 of the nozzle 1 is illustrated on the figure 6 , in which they comprise at least one cut resilient ring 18 disposed in a circular groove 19 formed in the outer side wall 13 of the nozzle 1, the outer diameter of the rod being greater than the diameter of the orifice O ri .
  • the locking means 11 of the nozzle 1 comprise at least one elastic lug 21, and advantageously for example four, of which a first end 22 is integral, for example being anchored, or by welding, molding, etc., .. in the outer lateral wall 13 of the nozzle 1 and the second free end 23 facing the portion 24 of the nozzle having the outlet 4 of the through-hole 2 is outside the cylindrical volume defined by the outer lateral wall of the mouthpiece.
  • the elastic tabs 21 when the tip is plugged into the orifice O ri , the elastic tabs 21 are folded against the side wall 13 of the nozzle, and then deploy as soon as they have passed the lower edge 29 of the groove G o made in the inner wall of the orifice O ri . In this position, as illustrated on the figure 7 the free ends 23 of the resilient tabs 21 abut against the lower edge 29 of the groove Go, preventing the tip 1 out of the orifice O ri .
  • a fourth embodiment of the locking means 11 of the tip is illustrated on the figure 8 in which they have a resilient clip in the form of concave disc 25 having a central opening 26 of a diameter smaller than that of the outer side wall 13 of the nozzle, the outer diameter 27 of the disc 25 being greater than the diameter of the orifice O ri , the disc 25 being anchored in the outer side wall 13 of the nozzle 1 so that its concavity 28 is turned towards the portion 24 of the nozzle having the outlet 4 of the through-hole 2.
  • This concave disc 25 can thus be relatively easily pushed into the orifice O ri with the mouthpiece, but prevents the mouthpiece from coming out of the orifice because, in this sense, its outer edge diameter 27 is bent against the inner wall of the orifice O ri .
  • the connecting body 5 consists of a trough 30, or equivalent, defining a groove 31 opening at its two opposite ends 32, 33 and open laterally, a cover 34 covering the chute 30 for sealing the lateral opening of the groove 31 and thus producing the sealed fluidic conduit 6 defined above, the two ends 7, 10 of which consist of the two opposite ends 32, 33 of the groove 31, and means for securing the lid 34 with the chute 30.
  • the means for securing the lid 34 with the chute 30 consist of a weld including ultra son.
  • the tip 1, the chute 30 and the nozzle 8 are made in one piece, for example, in a manner known per se, by molding.
  • the cooling nozzle comprises valve means 40 mounted in cooperation with the outlet 4 of the through-hole 2 and the first end 7 of the fluid duct 6, these valve means being arranged to allow a fluid passage of this outlet 4 to this first end 7.
  • the nozzle is formed so that the chute 30 and the nozzle 1 are located on the same side of the plane 41 of the lid 34, the axis 42 of the through-hole 2 and the axis 43 of the duct fluidic 6 forming between them substantially a right angle.
  • the valve means 40 consist of a valve ball 44 adapted to cooperate with a valve seat 45 made at the outlet 4 of the through-hole 2, the diameter of the valve ball being greater than the diameter of the valve seat , and a linear spring 46, one end 47 of which bears on the valve ball 44 and the other end 48 passes through the groove 31 and bears on the face 49 of the cover 34 facing said groove.
  • the nozzle comprises a seal 12 mounted around the nozzle 1 adapted to cooperate with the side wall of the engine block B m when the tip is plugged into the orifice O ri , to achieve this is a sealed passage between the outer side wall 13 of the nozzle and the inner wall of this orifice.
  • the seal 12 is mounted around the nozzle 1 in a circular groove 50 formed in the outer side wall 13 of the nozzle to be adapted to cooperate with the side wall of the orifice O ri when the tip is plugged into the orifice O ri to provide a sealed passage between the outer side wall of the nozzle and the inner wall of the orifice O ri , the outer diameter of the seal 12 being greater than the diameter of the orifice O ri when this joint is not subject to any compression.
  • the seal 12 is mounted around the end piece 1 in a circular groove 60 made in the side wall 61 of the connecting body 5 to be able to cooperate with the edge 62 of the orifice O ri when the endpiece is plugged entirely into this orifice O ri to achieve a sealed passage between the side wall of the connecting body and the edge of the orifice.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Compressor (AREA)

Claims (10)

  1. Düse zum Kühlen eines heißen Punkts eines Kolbens eines Kraftfahrzeugmotors oder dergleichen, der im Motorblock (Bm) einen Schmierungsfluid-Hochdruckkreis aufweist, wobei die Düse umfasst: einen Verbindungsstutzen (1), der ein Durchgangsloch (2) mit einem Eingang (3) und einem Ausgang (4) enthält, einen Verbindungskörper (5), der eine Fluidleitung (6) definiert, wovon ein erstes Ende (7) fluiddicht mit dem Ausgang (4) des Durchgangslochs verbunden ist, ein Ausstoßdüsenelement (8), das einen fluiddicht mit dem zweiten Ende (10) der Fluidleitung (6) verbundenen Versorgungseingang (9) enthält,
    Mittel (11) zum translatorischen Blockieren des Stutzens (1), wenn er in eine im Motorblock (Bm) ausgebildete Öffnung (Ori) eingesteckt ist, wobei die Öffnung mit dem Hochdruckkreis kommuniziert, und
    eine Dichtung (12), die um den Stutzen (1) montiert ist und dazu ausgelegt ist, mit der Seitenwand des Motorblocks (Bm) zusammenzuwirken, wenn der Stutzen in die Öffnung (Ori) eingesteckt ist, um einen dichten Durchlass zwischen der äußeren Seitenwand (13) des Stutzens und der inneren Seitenwand der Öffnung (Ori) zu schaffen,
    dadurch gekennzeichnet, dass die Mittel (11) zum translatorischen Blockieren des Stutzens (1) in der Öffnung (Ori) durch wenigstens eines der folgenden Mittel gebildet sind:
    - einen elastischen Schlitzring (20), der um den Stutzen montiert ist und ihn dabei umklammert, wobei der Außendurchmesser des Rings etwas größer als jener der Öffnung (Ori) ist, derart, dass der den Ring tragende Stutzen mit Kraft in die Öffnung (Ori) eingesteckt werden kann, damit er dort festgeklemmt ist,
    - wenigstens einen elastischen Sprengring (18), der in einer kreisförmigen Fuge (19) angeordnet ist, die in der äußeren Seitenwand (13) des Stutzens (1) verwirklicht ist, wobei der Außendurchmesser des Sprengrings größer als der Durchmesser der Öffnung (Ori) ist,
    - wenigstens einen elastischen Ansatz (21), wovon ein erstes Ende (22) mit der äußeren Seitenwand (13) des Stutzens (1) fest verbunden ist und wovon sich das freie zweite Ende (23), das dem Teil (24) des Stutzens zugewandt ist, der den Ausgang (4) des Lochs (2) aufweist, außerhalb des zylindrischen Volumens befindet, das durch die äußere Seitenwand (13) des Stutzens definiert ist,
    - eine elastische Klemme in Form einer konkaven Scheibe (25), die eine mittige Öffnung (26) mit einem Durchmesser aufweist, der kleiner als jener der äußeren Seitenwand (13) des Stutzens ist, wobei der äußere Durchmesser (27) der Scheibe (25) größer als der Durchmesser der Öffnung (Ori) ist, wobei die Scheibe (25) in der äußeren Seitenwand (13) des Stutzens (1) in der Weise verankert ist, dass ihre Konkavität (28) dem Teil (24) des Stutzens zugewandt ist, der den Ausgang (4) des Durchgangslochs (2) aufweist.
  2. Düse nach Anspruch 1, dadurch gekennzeichnet, dass der Verbindungskörper (5) gebildet ist aus:
    - einer Rinne (30), die eine Kehle (31) definiert, die an ihren beiden gegenüberliegenden Enden (32, 33) durchlocht ist und seitlich offen ist,
    - einem Deckel (34), der die Rinne (30) abdeckt, um die seitliche Öffnung der Kehle (31) dicht zu schließen und um somit die fluiddichte Leitung (6) zu schaffen, deren zwei Enden (7, 10) durch die zwei gegenüberliegenden Enden (32, 33) der Kehle (31) gebildet sind, und
    - Mitteln, um den Deckel (34) mit der Rinne (30) fest zu verbinden.
  3. Düse nach Anspruch 2, dadurch gekennzeichnet, dass dann, wenn sowohl die Rinne als auch der Deckel aus Kunststoff bestehen, die Mittel zum festen Verbinden des Deckels (34) mit der Rinne (30) durch Ultraschallschweißen gebildet sind.
  4. Düse nach einem der Ansprüche 2 und 3, dadurch gekennzeichnet, dass der Stutzen (1), die Rinne (30) und das Düsenelement (8) einteilig ausgebildet sind.
  5. Düse nach Anspruch 4, dadurch gekennzeichnet, dass das einzige Teil durch Gießen erhalten wird.
  6. Düse nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sie Ventilmittel (40) umfasst, die in Zusammenwirkung mit dem Ausgang (4) des Durchgangslochs (2) und mit dem ersten Ende (7) der Fluidleitung (6) montiert sind, wobei diese Ventilmittel dazu ausgelegt sind, einen Fluiddurchgang von dem Ausgang (4) zu dem ersten Ende (7) zuzulassen.
  7. Düse nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass sich die Rinne (30) und der Stutzen (1) auf derselben Seite der Ebene (41) des Deckels (34) befinden, wobei die Achse (42) des Durchgangslochs (2) und die Achse (43) der Fluidleitung (6) zueinander einen rechten Winkel bilden.
  8. Düse nach den Ansprüchen 2 und 6, dadurch gekennzeichnet, dass die Ventilmittel (40) gebildet sind aus einer Ventilkugel (44), die mit einem Ventilsitz (45) zusammenwirken kann, der am Ausgang (4) des Durchgangslochs (2) verwirklicht ist, wobei der Durchmesser der Ventilkugel größer als der Durchmesser des Ventilsitzes ist, und aus einer geradlinigen Feder (46), wovon sich ein Ende (47) an der Ventilkugel (44) abstützt und das andere Ende (48) durch die Kehle (31) verläuft und sich auf der zu der Kehle gewendeten Fläche (49) des Deckels (34) abstützt.
  9. Düse nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Dichtung (12) um den Stutzen (1) in einer kreisförmigen Rille (50) montiert ist, die in der äußeren Seitenwand (13) des Stutzens verwirklicht ist, um mit der Seitenwand der Öffnung (Ori) zusammenwirken zu können, wenn der Stutzen in die Öffnung (Ori) eingesteckt ist, um einen dichten Durchgang zwischen der äußeren Seitenwand des Stutzens und der Innenwand der Öffnung (Ori) zu schaffen, wobei der Außendurchmesser der Dichtung (12) größer ist als der Durchmesser der Öffnung (Ori), wenn diese Dichtung keinerlei Kompression unterworfen ist.
  10. Düse nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Dichtung (12) in einer kreisförmigen Rille (60) um den Stutzen (1) montiert ist, die in der Seitenwand (61) des Verbindungskörpers (5) verwirklicht ist, um mit dem Rand (62) der Öffnung (Ori) zusammenwirken zu können, wenn der Stutzen vollständig in diese Öffnung (Ori) eingesteckt ist, um einen dichten Durchgang zwischen der Seitenwand des Verbindungskörpers und dem Rand der Öffnung zu schaffen.
EP05290843A 2004-04-29 2005-04-18 Kühlungsdüse für die Heissstelle eines Kolbens einer Kraftfahrzeugbrennkraftmaschine Not-in-force EP1591640B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0404608 2004-04-29
FR0404608A FR2869641B1 (fr) 2004-04-29 2004-04-29 Gicleur de refroidissement d'un point chaud d'un piston de moteur de vehicule automobile ou analogue

Publications (2)

Publication Number Publication Date
EP1591640A1 EP1591640A1 (de) 2005-11-02
EP1591640B1 true EP1591640B1 (de) 2009-04-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05290843A Not-in-force EP1591640B1 (de) 2004-04-29 2005-04-18 Kühlungsdüse für die Heissstelle eines Kolbens einer Kraftfahrzeugbrennkraftmaschine

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EP (1) EP1591640B1 (de)
AT (1) ATE428848T1 (de)
DE (1) DE602005013845D1 (de)
FR (1) FR2869641B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011077506A1 (de) * 2011-06-14 2012-12-20 Bayerische Motoren Werke Aktiengesellschaft Schraubverbindung für eine Ölspritzdüse
WO2021236360A1 (en) * 2020-05-18 2021-11-25 Schaeffler Technologies AG & Co. KG Oil-spray tube with poppet valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10704450B2 (en) * 2017-06-16 2020-07-07 Illinois Tool Works Inc. Piston cooling jet assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1956121A1 (de) * 1969-11-07 1971-05-27 Kloeckner Humboldt Deutz Ag Kolbenkuehlung fuer Hubkolbenbrennkraftmaschinen mit abstellbaren Spritzduesen
US3910550A (en) * 1974-05-13 1975-10-07 Illinois Tool Works Drain plug assembly
US5267534A (en) * 1991-09-09 1993-12-07 Caterpillar Inc. Piston cooling nozzle
JPH0968042A (ja) * 1995-08-31 1997-03-11 Suzuki Motor Corp ４サイクルエンジンのオイル噴射装置
FR2743847B1 (fr) * 1996-01-18 1998-02-27 Bontaz Centre Gicleur de refroidissement a emmanchement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011077506A1 (de) * 2011-06-14 2012-12-20 Bayerische Motoren Werke Aktiengesellschaft Schraubverbindung für eine Ölspritzdüse
WO2021236360A1 (en) * 2020-05-18 2021-11-25 Schaeffler Technologies AG & Co. KG Oil-spray tube with poppet valve

Also Published As

Publication number Publication date
ATE428848T1 (de) 2009-05-15
EP1591640A1 (de) 2005-11-02
FR2869641B1 (fr) 2006-07-14
FR2869641A1 (fr) 2005-11-04
DE602005013845D1 (de) 2009-05-28

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