EP1591640A1 - 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
EP1591640A1
EP1591640A1 EP05290843A EP05290843A EP1591640A1 EP 1591640 A1 EP1591640 A1 EP 1591640A1 EP 05290843 A EP05290843 A EP 05290843A EP 05290843 A EP05290843 A EP 05290843A EP 1591640 A1 EP1591640 A1 EP 1591640A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
orifice
side wall
diameter
outlet
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
EP05290843A
Other languages
English (en)
French (fr)
Other versions
EP1591640B1 (de
Inventor
Bertrand Paris
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.)
ARDEPA
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Ardepa
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Filing date
Publication date
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Publication of EP1591640A1 publication Critical patent/EP1591640A1/de
Application granted granted Critical
Publication of EP1591640B1 publication Critical patent/EP1591640B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 point cooling jets hot piston engine of motor vehicle or the like which comprise, in the engine block, a high pressure circuit of a fluid of lubrication, such as oil or the like.
  • jets are essentially designed to be connected in bypassing 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 fluid under pressure is then ejected at the outlet of the nozzle being sprayed and directed towards the hot spot piston to cool it.
  • the sprayed fluid is then flushed out in the cover of this lubricating fluid, this tarpaulin serving in particular to reserve and power source for the high pressure circuit.
  • the present invention aims to achieve a nozzle of cooling, especially of a hot spot of a vehicle engine piston automobile or the like comprising, in the engine block, a high-pressure circuit a lubricating fluid, which at least partially overcomes the disadvantages aforementioned sprinklers of the prior art, having a cost price of relatively low manufacturing, because it is easier to manufacture, especially in large series, while giving total satisfaction in terms of reliability.
  • the present invention relates to a nozzle of cooling of a hot spot of a motor vehicle engine piston comprising, in the engine block, a high pressure circuit of a fluid of lubrication, said nozzle comprising a connection tip comprising a through-hole with an inlet and an outlet, a connecting body defining a fluidic conduit whose first end is fluidly connected at the exit of the through-hole, and an ejection nozzle comprising a supply inlet fluidly sealed to the second end of the fluidic conduit, said nozzle being characterized by the fact that it comprises in addition to locking means in translation of the tip when it is plugged into an orifice made in the engine block, said orifice communicating with the circuit high pressure, and a seal mounted around the nozzle adapted to cooperate with the side wall of the engine block when said tip is plugged into the orifice, to achieve a sealed passage between the outer side wall of the mouthpiece and the inner wall of the orifice.
  • the object of the invention comprises "at least one" element having a given function
  • the described embodiment may include several of these elements.
  • the embodiments of the object according to the invention such illustrated with several elements of identical function and if, in the description, it is not specified that the object according to this invention obligatorily include a particular number of these elements, the object of the invention may be defined as having "at least one" of these elements.
  • 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 FIGS. 1 to 5, a connection tip 1 comprising a through-hole 2 with an inlet 3 and an outlet 4, a connecting body 5 defining a fluid duct 6, one of which first end 7 is fluidly sealed to the outlet 4 of the through-hole, and an ejection nozzle 8 having a feed 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 a sealed passage 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 nozzle 1 comprise a split elastic ring 20, the slot being visible in Figure 2 and referenced 17.
  • This ring is mounted around the end piece by enclosing it, the outer diameter of the ring being slightly greater than that of the orifice O r r so that the end piece carrying the ring is adapted to be plugged into force in the orifice O ri , the ring is closing on itself by entering the orifice to be stuck by the elastic reaction that tends to open it.
  • FIG. 6 A second embodiment of these locking means 11 of the nozzle 1 is illustrated in FIG. 6, in which they comprise at least one cut resilient ring 18 disposed in a circular groove 19 made in the outer lateral wall 13 of the tip 1, the outside diameter of the rod being greater than the diameter of the orifice O ri .
  • the means blocking 11 of the endpiece 1 comprise at least one elastic tab 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 side wall 13 of the nozzle 1 and whose second free end 23 turned towards the part 24 of the mouthpiece having the exit 4 of the breakthrough through 2 is outside the cylindrical volume defined by the side wall outside 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 shown in Figure 7, the free ends 23 of the elastic tabs 21 abut against the lower edge 29 of the groove Go, preventing the tip 1 out of the orifice O ri .
  • FIG. 8 A fourth embodiment of the locking means 11 of the nozzle is illustrated in FIG. 8, in which they comprise a concave disc-shaped elastic clip 25 having a central opening 26 of a diameter smaller than that of the lateral 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 chute 30, or equivalent, defining a groove 31 opening at both ends thereof 32, 33 and open laterally, a cover 34 covering the chute 30 for sealingly closing the lateral opening of the groove 31 and thus achieve the sealed fluidic conduit 6 defined above which both ends 7, 10 are constituted by 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 cover 34 with the chute 30 are constituted by a weld including ultra son.
  • the nozzle 1, the chute 30 and the nozzle 8 are made in one single piece, for example, in a manner known per se, by molding.
  • the cooling nozzle comprises valve means 40 mounted in cooperation with the exit 4 of the through breakthrough 2 and the first end 7 of the fluidic conduit 6, these valve means being arranged to allow a fluidic passage of this outlet 4 towards this first end 7.
  • the nozzle is made so that the chute 30 and the tip 1 are located on the same side of the plane 41 of the cover 34, the axis 42 of the through-hole 2 and the axis 43 of the fluidic duct 6 forming between them substantially a right angle.
  • 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 bears on the ball valve 44 and the other end 48 passes through the groove 31 and bears on the face 49 of the cover 34 facing this 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 end piece 1 in a circular groove 50 made in the outer lateral wall 13 of the end piece so as to be able 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 seal is not subjected to any compression.
  • the seal 12 is mounted around the nozzle 1 in a circular groove 60 formed 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 nozzle is fully inserted into this orifice O ri to achieve a sealed passage between the side wall of the connecting body and the edge of the orifice.

Landscapes

  • 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)
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
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
FR0404608 2004-04-29

Publications (2)

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

Family

ID=34942144

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

Country Status (4)

Country Link
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
EP3415736A1 (de) * 2017-06-16 2018-12-19 Illinois Tool Works, Inc. Kolbenkühlstrahlanordnung
US11506110B2 (en) 2020-05-18 2022-11-22 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
DE102011077506A1 (de) * 2011-06-14 2012-12-20 Bayerische Motoren Werke Aktiengesellschaft Schraubverbindung für eine Ölspritzdüse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709109A (en) * 1969-11-07 1973-01-09 Kloeckner Humboldt Deutz Ag Piston cooling arrangement for a reciprocating piston internal combustion engine with an injection nozzle
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
EP0785344A1 (de) * 1996-01-18 1997-07-23 Bontaz Centre Aufsteckbare Kühlungsöldüse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709109A (en) * 1969-11-07 1973-01-09 Kloeckner Humboldt Deutz Ag Piston cooling arrangement for a reciprocating piston internal combustion engine with an injection nozzle
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
EP0785344A1 (de) * 1996-01-18 1997-07-23 Bontaz Centre Aufsteckbare Kühlungsöldüse

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 07 31 July 1997 (1997-07-31) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3415736A1 (de) * 2017-06-16 2018-12-19 Illinois Tool Works, Inc. Kolbenkühlstrahlanordnung
US11506110B2 (en) 2020-05-18 2022-11-22 Schaeffler Technologies AG & Co. KG Oil-spray tube with poppet valve

Also Published As

Publication number Publication date
DE602005013845D1 (de) 2009-05-28
FR2869641B1 (fr) 2006-07-14
ATE428848T1 (de) 2009-05-15
EP1591640B1 (de) 2009-04-15
FR2869641A1 (fr) 2005-11-04

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