WO2016114333A1 - Procédé de fabrication d'entretoise pour chemise d'eau - Google Patents

Procédé de fabrication d'entretoise pour chemise d'eau Download PDF

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Publication number
WO2016114333A1
WO2016114333A1 PCT/JP2016/050900 JP2016050900W WO2016114333A1 WO 2016114333 A1 WO2016114333 A1 WO 2016114333A1 JP 2016050900 W JP2016050900 W JP 2016050900W WO 2016114333 A1 WO2016114333 A1 WO 2016114333A1
Authority
WO
WIPO (PCT)
Prior art keywords
water jacket
spacer
water
peripheral surface
bridge
Prior art date
Application number
PCT/JP2016/050900
Other languages
English (en)
Japanese (ja)
Inventor
佳史 藤田
章太 内田
中村　健一
Original Assignee
ニチアス株式会社
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
Priority claimed from JP2015245456A external-priority patent/JP6328094B2/ja
Application filed by ニチアス株式会社 filed Critical ニチアス株式会社
Priority to EP16737404.0A priority Critical patent/EP3246554A4/fr
Priority to CN201680006028.3A priority patent/CN107110060B/zh
Priority to US15/543,638 priority patent/US10562215B2/en
Publication of WO2016114333A1 publication Critical patent/WO2016114333A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • 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
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream

Definitions

  • the present invention relates to a method for manufacturing a water jacket spacer to be assembled inside a water jacket provided in a water-cooled internal combustion engine.
  • a water jacket as a cooling water circulation path is formed around the bore wall of the cylinder bore.
  • a spacer water The flow of the cooling water is controlled by inserting and assembling the jacket spacer.
  • Patent Document 1 proposes a water jacket spacer composed of a plurality of divided bodies.
  • the spacer for the water jacket is, for example, assembled in a part of the water jacket into which the cooling water flows, and is not assembled on the side from which the cooling water is discharged.
  • the temperature distribution of the bore wall is optimized by controlling the flow of cooling water flowing through the wall.
  • the water jacket spacer is formed to have a shape that can be partially inserted into the water jacket.
  • each of the water jacket spacers formed of a plurality of divided bodies, It is an object of the present invention to provide a water jacket spacer manufacturing method capable of manufacturing a water jacket spacer having a shape that can be partially inserted into a jacket with good moldability.
  • the present invention is a method for manufacturing a spacer for a water jacket that is assembled inside a water jacket provided in a water-cooled internal combustion engine and controls the flow of cooling water
  • the water jacket spacer has a plurality of arc-shaped peripheral surface portions connected to each other through a constricted portion, and can be partially inserted into the water jacket, and corresponds to the inner peripheral surface of the water jacket spacer. Even after a predetermined resin material is injection molded, opened and ejected using an injection mold in which a resin flow path is designed so that a plurality of gates are arranged in the longitudinal direction at the position.
  • the present invention provides a method for producing a spacer for a water jacket, wherein the runner is cooled in a state where the runner is continuously left, and then the runner is cut off.
  • the present invention is a method for manufacturing a spacer for a water jacket that is assembled inside a water jacket provided in a water-cooled internal combustion engine and controls the flow of cooling water
  • the water jacket spacer is formed by combining a plurality of arc-shaped peripheral surface portions connected to each other via a constricted portion, and a plurality of the lengths corresponding to the inner peripheral surface of the split molded body along the longitudinal direction.
  • a predetermined resin material is injection molded, and after the mold is opened and ejected, the runner connected to the gate remains.
  • the present invention provides a method for producing a spacer for a water jacket, wherein the runner is cut off after cooling as it is, and then the runner is cut off.
  • the present invention is a method for manufacturing a spacer for a water jacket that is assembled inside a water jacket provided in a water-cooled internal combustion engine and controls the flow of cooling water,
  • Two water jacket spacers having a shape in which a plurality of arc-shaped peripheral surface portions are connected via a constricted portion and can be partially inserted into the water jacket, and have the same shape or different shapes facing the inner peripheral surface
  • a bridge portion connecting the inner peripheral surfaces of the two water jacket spacers is arranged in the longitudinal direction at a position corresponding to the inner peripheral surface of the two water jacket spacers.
  • the present invention provides a method for producing a water jacket spacer, characterized in that, after the mold is opened and ejected, cooling is performed with the bridge portion remaining, and then the bridge portion is cut off.
  • a water jacket spacer having a shape that can be partially inserted into the interior of the water jacket, or a water jacket spacer that is partially inserted into the water jacket spacer. It can be manufactured with good productivity by injection molding while preventing deformation in the cooling process.
  • the method for manufacturing a water jacket spacer according to the first aspect of the present invention is a method for manufacturing a water jacket spacer that is assembled inside a water jacket provided in a water-cooled internal combustion engine and controls the flow of cooling water.
  • the spacer for the water jacket has a plurality of arc-shaped peripheral surface portions connected via a constricted portion, and has a shape that can be partially inserted into the water jacket.
  • a predetermined resin material is injection-molded using an injection mold in which a resin flow path is designed so that a plurality of gates are arranged along the longitudinal direction at a position corresponding to the inner peripheral surface of the water jacket spacer. , After the mold is opened and ejected, cooling is performed with the runner connected to the gate remaining, and then the runner is cut out.
  • the spacer 2 manufactured according to this embodiment has a cylinder block CBL and a cylinder head (not shown), and four cylinder bores CB arranged in series are formed in the cylinder block CBL. It is assembled inside a water jacket WJ provided in a water-cooled in-line 4-cylinder engine for automobiles.
  • the bore walls BW of a plurality (four in the illustrated example) of the cylinder bores CB are formed so as to be continuously integrated in a constricted shape between adjacent cylinder bores CB.
  • a water jacket WJ as a cooling water circulation path is formed around the wall BW.
  • FIG. 3 is an explanatory view showing an example of a water-cooled internal combustion engine in which the spacer 2 is assembled. In the figure, the spacer 2 is indicated by a two-dot chain line.
  • the spacer 2 is inserted into the water jacket WJ and assembled along the bore wall BW constricted between the adjacent cylinder bores CB, so that the flow of the cooling water flowing in the water jacket WJ is generated. It is designed to be able to control and optimize the temperature distribution of the bore wall BW. For example, when the spacer 2 is assembled to a part of the water jacket WJ into which the cooling water flows and the spacer 2 is not assembled to the side from which the cooling water is discharged from the water jacket WJ, the water jacket is used.
  • the shape is designed so that it can be partially inserted into the WJ. In the present embodiment, the spacer 2 having such a shape is a manufacturing object.
  • the spacer 2 has a shape in which one end side of the spacer 2 and the other end side are symmetrical, as shown in FIG.
  • the asymmetrical shape may be longer than the edge side, and a plurality of arc-shaped side wall portions 4 are connected via the constricted portion 3 so as to be inserted into the water jacket WJ along the bore wall BW of the cylinder bore CB. What is necessary is just to have the shape which was made.
  • the spacer 2 having such a shape has an inlet of a resin material filled in the cavity at a position corresponding to an inner peripheral surface thereof (a surface facing the bore wall BW when assembled inside the water jacket WJ).
  • the gate 6 is formed by injection molding a predetermined resin material using an injection mold in which a resin flow path is designed so that a plurality of gates 6 are arranged along the longitudinal direction. At least a spacer 2, a gate 6, and a runner 7 are formed on a molded body 1 obtained by injection molding.
  • the runner 7 connected to the gate 6 is cooled in a comb-like state, and then the runner 7 is removed. Resect.
  • the runner 7 which is connected to the inner peripheral surface of the side wall portion 4 of the spacer 2 in a comb-like shape suppresses the deformation of the spacer 1 in the softened state immediately after ejection, and the spacer 1 is cooled.
  • the shape of the spacer 2 can be maintained until it is solidified.
  • a fire-like reinforcing portion 7 a as shown in the figure can be formed at the branch portion of the runner 7. Then, the runner 7 connected to the side wall portion 4 of the spacer 2 in a comb shape is cut off after the spacer 2 is sufficiently solidified and the possibility of deformation is eliminated.
  • the spacer 2 can be manufactured with high productivity by injection molding while preventing the deformation of the spacer 2 in the cooling step after molding.
  • the gates 6 are arranged at positions corresponding to the center in the height direction of the side wall 4 of the spacer 2. By doing so, the deformation of the spacer 2 in the cooling step after molding can be more effectively prevented.
  • the height of the side wall portion 4 on which the gates 6 are arranged is arranged. The position of the direction is not limited to this.
  • the gates 6 are arranged at positions corresponding to the arc-shaped side wall portions 4 of the spacer 2. By doing so, the resin pressure in the vicinity of the exit of the gate 6 is hardly lowered and filling failure can be suppressed.
  • the gates 6 may be arranged on the edge of the spacer 2 together with the position corresponding to the constricted portion 3 of the spacer 2.
  • the position at which the gates 6 are arranged can be appropriately designed from the viewpoint of moldability in consideration of the flow of resin and the like, and if necessary, positions corresponding to the arc-shaped side wall portions 4 and spacers
  • the gates 6 may be arranged at both positions corresponding to the two constricted portions 3.
  • the productivity can be further improved by taking two spacers 2.
  • the gates may be alternately arranged along the longitudinal direction between one spacer 2 and the other spacer 2.
  • the two spacers 2 When two spacers 2 are taken, in the embodiment shown in FIGS. 4E to 4H, the two spacers 2 have the same shape, but for the water jacket according to the first embodiment of the present invention.
  • the spacer manufacturing method is not limited to this.
  • the shapes of the two spacers 2 may be the same or different.
  • the difference between the shapes of the two spacers 2 is that the number of arc-shaped side wall portions forming the spacers is different, and that various members formed by integral molding on the outer surface of the spacer are different.
  • the method for producing a water jacket spacer according to the second aspect of the present invention is a method for producing a water jacket spacer that is assembled in a water jacket of a water-cooled internal combustion engine and controls the flow of cooling water, Two water jacket spacers having a shape in which a plurality of arc-shaped peripheral surface portions are connected via a constricted portion and can be partially inserted into the water jacket, and have the same shape or different shapes facing the inner peripheral surface And a bridge portion connecting the inner peripheral surfaces of the two water jacket spacers is arranged in the longitudinal direction at a position corresponding to the inner peripheral surface of the two water jacket spacers.
  • a predetermined resin material is injection molded, After the mold is opened and ejected, cooling is performed with the bridge portion remaining, and then the bridge portion is cut out.
  • the two spacers 2 each have a shape in which a plurality of arc-shaped side wall portions 4 are connected via the constricted portions 3, and the inner sides face each other. is doing.
  • the two spacers 2 are arranged in such a manner that a plurality of bridge portions 8a are arranged in the longitudinal direction at positions where the constricted portions 3 on the inner peripheral surfaces of the two spacers 2 are connected, and a plurality of bridge portions 8b are arranged at positions where the end portions are connected. It is molded by injection molding a predetermined resin material using an injection mold for which a resin flow path is designed.
  • the bridge portion includes a constricted portion bridge portion 8 a that connects the insides of the constricted portions of the spacer 2 and an end bridge portion 8 b that connects the end portions of the spacer 2.
  • the mold After the mold is opened and the molded body 1 is ejected, it is cooled while leaving the bridge portions 8a and 8b, and then the bridge portions 8a and 8b are cut off. .
  • the bridge portions 8a and 8b that are still connected to the inside of the constricted portion 3 of the spacer 2 suppress the deformation of the spacer 2 in the softened state immediately after ejection, and the spacer 2 is cooled and solidified.
  • the shape of the spacer 2 can be maintained until it is finished.
  • the bridge portions 8a and 8b connected to the constricted portion 3 of the spacer 2 are excised after the spacer 2 is sufficiently solidified and there is no risk of deformation.
  • the resin material can be injected from the end bridge portions 8 b at both ends of the spacer 2.
  • each of the two spacers 2 has a shape in which a plurality of arc-shaped side wall portions 4 are connected via a constricted portion 3, and the inner sides face each other.
  • the spacer 2 has a resin flow such that a plurality of bridge portions 8c and 8d are arranged in the longitudinal direction in the vicinity of the center of the arcuate shape (when viewed from above) of the inner peripheral surfaces of the side wall portions 4 of the two spacers 2. It is molded by injection molding a predetermined resin material using an injection mold with a designed path.
  • the bridge portion is a bridge portion that connects the arc-shaped central neighborhoods of the inner peripheral surface of the side wall portion 4 of the spacer 2, the end side bridge portion 8 c formed at both ends in the longitudinal direction of the spacer 2, and the side wall of the spacer 2
  • the mold After the mold is opened and the molded body 1 is ejected, it is cooled with the bridge portions 8c and 8d remaining, and then the bridge portions 8c and 8d are cut off. .
  • the bridge portions 8c and 8d that are still connected to the inside of the side wall portion 4 of the spacer 2 suppress the deformation of the spacer 2 in the softened state immediately after ejection, and the spacer 2 is cooled and solidified.
  • the shape of the spacer 2 can be maintained until it is finished.
  • the bridge portions 8c and 8d connected to the side wall portion 4 of the spacer 2 are cut off after the spacer 2 is sufficiently solidified and there is no possibility of deformation.
  • the resin material can be injected from the end side bridge portions 8 c at both ends of the spacer 2.
  • the resin flow path may be designed such that the bridge between the bridges connecting adjacent bridges is further formed in the injection mold.
  • FIG. 7 shows an injection mold in which a resin flow path is designed so that a bridge portion between bridges connecting adjacent bridge portions is formed in the method for manufacturing a water jacket spacer according to the second embodiment of the present invention.
  • 1 shows an embodiment of a spacer for a water jacket manufactured using the same.
  • each of the two spacers 2 has a shape in which a plurality of arc-shaped side wall portions 4 are connected via a constricted portion 3, and the inner sides face each other.
  • the two spacers 2 have a plurality of bridge portions 8a arranged in the longitudinal direction at positions where the constricted portions 3 on the inner peripheral surfaces of the two spacers 2 are connected, and a plurality of bridge portions 8b are arranged at positions where the end portions are connected, and Then, a predetermined resin material is molded by injection molding using an injection mold in which the resin flow path is designed so that the bridge portion 9a between the bridges connecting the adjacent bridge portions 8a is formed.
  • the bridge portion includes a constricted portion bridge portion 8 a that connects the insides of the constricted portions of the spacer 2 and an end bridge portion 8 b that connects the end portions of the spacer 2.
  • the bridge portion 8a, 8b and the bridge portion 9a between the bridges are left to be cooled, and then the bridge portion. 8a and 8b and the bridge part 9a between bridges are excised.
  • the bridge portions 8a and 8b and the inter-bridge bridge portion 9a that are still connected to the inside of the constricted portion 3 of the spacer 2 suppress the deformation of the spacer 2 in the softened state immediately after ejection, and the spacer 2 It is possible to maintain the shape of the spacer 2 until it is cooled and solidified.
  • the bridge portions 8a and 8b and the bridge-to-bridge bridge portion 9a connected to the constricted portion 3 of the spacer 2 are excised after the spacer 2 is sufficiently solidified and there is no possibility of deformation.
  • the resin material can be injected from the end bridge portions 8 b at both ends of the spacer 2.
  • the resin material can be injected from the center position 10a of the bridge portion 9a between the bridges.
  • each of the two spacers 2 has a shape in which a plurality of arc-shaped side wall portions 4 are connected via a constricted portion 3, and the inner sides face each other. ing.
  • a plurality of bridge portions 8 c and 8 d are arranged in the longitudinal direction in the vicinity of the center of the arc shape (when viewed from above) of the inner peripheral surfaces of the side wall portions 4 of the two spacers 2, and adjacent to each other.
  • the bridge portion is a bridge portion that connects the arc-shaped central neighborhoods of the inner peripheral surface of the side wall portion 4 of the spacer 2, the end side bridge portion 8 c formed at both ends in the longitudinal direction of the spacer 2, and the side wall of the spacer 2
  • the bridge portion 8c, 8d and the bridge portion 9b between the bridges are cooled, and the bridge portion is then cooled. 8c and 8d and the bridge part 9b between bridges are cut off.
  • the bridge portions 8c and 8d and the bridge portion 9b between the bridges that are still connected to the inside of the side wall portion 4 of the spacer 2 suppress the deformation of the spacer 2 in the softened state immediately after ejection, and the spacer 2 It is possible to maintain the shape of the spacer 2 until it is cooled and solidified.
  • the bridge portions 8c and 8d and the bridge-to-bridge bridge portion 9b connected to the side wall portion 4 of the spacer 2 are cut off after the spacer 2 is sufficiently solidified and there is no risk of deformation.
  • the resin material can be injected from the end side bridge portions 2 c at both ends of the spacer 2.
  • the resin material can be injected from the center position 10b of the bridge portion 9b between the bridges.
  • bridge part 9 between bridges connects all the bridges 8 formed in an injection mold like the form example shown in FIG.7 (m), or the form shown in FIG.7 (k).
  • a part of the bridge portion 8 formed in the injection mold may be connected.
  • the spacer 2 can be manufactured with high productivity by injection molding while preventing the deformation of the spacer 2 in the cooling step after molding.
  • the position in the height direction of the side wall portion 4 where the bridge portions 8 are arranged is not particularly limited.
  • the height of the side wall portion 4 of the spacer 2 is The bridge portion 8 may be arranged at a position corresponding to the center in the direction, or the bridge portion 8 may be arranged above or below the center of the side wall portion 4 of the spacer 2 in the height direction.
  • the bridge portion 8 and the bridge portion 9 between the bridges can also serve as a runner and a gate.
  • the position at which the bridge portions 8 are arranged can be appropriately designed from the viewpoint of moldability in consideration of the flow of the resin and the like.
  • the bridge portion 8 may be disposed at both the position corresponding to the vicinity of the center of the arc shape inside the portion 4 and the position corresponding to the inside of the constricted portion 3.
  • FIGS. 5, 6 (i) and (j) and FIGS. 7 (k) and (m) the two spacers 2 facing each other have the same shape.
  • the method for manufacturing the water jacket spacer of the second embodiment is not limited to this.
  • the shapes of the two spacers 2 facing inside each other may be the same or different.
  • the shapes of the two spacers 2 that are opposed to each other are different when the number of arc-shaped side walls forming the spacers is different from when the various members formed by integral molding on the outer surface of the spacer are different.
  • FIG. 5 is explanatory drawing which shows the other example of the spacer for water jackets manufactured by embodiment of this invention, and is a perspective view.
  • FIG. 6 (i) is a plan view of FIG.
  • FIG. 6 (j) is an explanatory view showing another example of the water jacket spacer manufactured according to the embodiment of the present invention, and is a plan view.
  • 7 (k) and 7 (m) are explanatory views showing other examples of the water jacket spacer manufactured according to the embodiment of the present invention, and are plan views.
  • a bridge portion 8e composed of a single linear bridge portion main body portion 12a1 and a bridge portion small diameter portion 12a2 that connects each of both ends thereof to the inner side surface of the neck portion of the spacer or the inner peripheral surface of the side wall portion, As shown in FIG. 8 (B), the bridge portion 8f composed of only one linear bridge portion main body when viewed from above, or the embodiment shown in FIG. 8 (C) or (D).
  • the bridge portions 8g and 8h in such a configuration, when the two water jacket spacers facing each other are arranged so that the respective constricted portions are displaced from each other, in other words, the constricted portion is opposed to the constricted constricted portion of the other party.
  • two water jacket spacers are arranged so as to face each other between the constricted portions, for example, in the vicinity of the center of each bore portion, it is formed as a bridge portion that connects the insides of the two water jacket spacers.
  • the shape of the bridge portion is not limited to these.
  • the outer surface of the spacer 1 (when it is assembled to the bore wall BW when assembled inside the water jacket WJ). No member is formed on the surface opposite to the facing surface), but in practice, various members are appropriately formed on the outer surface of the spacer by integral molding for the purpose of performing various functions. Is formed.
  • the resin material is not particularly limited, and examples thereof include polypropylene, polyamide, polyphenylsulfone, and the like, but a resin material excellent in heat resistance, water resistance, antifreeze liquid resistance, wear resistance, and the like is used. It can be selected appropriately.
  • the water jacket spacer manufactured by the method for manufacturing a water jacket spacer according to the present invention is a water jacket spacer that is installed in a grooved cooling water flow path after a heat-retaining rubber member and its accessory members are attached to the inside.
  • it may be a water jacket spacer that is installed in the grooved cooling water flow path without attaching a heat retaining rubber member or the like inside.
  • the spacer 2 having a shape that can be partially inserted into the interior of the water jacket has been described.
  • a plurality of arc-shaped peripheral surface portions have constricted portions.
  • it can be applied in the same manner as in the above-described embodiment. In this case, by using an injection mold in which a resin flow path is designed so that a plurality of gates are arranged along the longitudinal direction at a position corresponding to the inner peripheral surface of the divided molded body, the divided molded body is Injection molding.
  • the water jacket spacer used in the water-cooled in-line four-cylinder engine for automobiles has been described as an example.
  • the present invention can be applied to other in-line multi-cylinder engines such as an in-line three-cylinder engine. You can also. Further, the present invention can be applied not only to an in-line engine but also to a V-type engine and a horizontally opposed engine, and can be widely applied to a water-cooled internal combustion engine having a water jacket.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Selon l'invention, en une position correspondant à une face périphérique interne d'une entretoise (1) dans laquelle une pluralité de parties face périphérique en arc de cercle (2) constitue une forme continue avec trois parties rétrécissement pour intermédiaire, un moulage par injection est effectué à l'aide d'un moule pour moulage par injection dans lequel est configuré un trajet d'écoulement de résine, de sorte qu'une pluralité d'orifices (6) est rangée selon une direction longitudinale. Après ouverture du moule puis éjection, un refroidissement est effectué dans un état tel que des canaux secondaires d'injection (7) dans la continuité des orifices (6) restent en place, puis ces canaux secondaires d'injection (7) sont coupés. Plus précisément, l'invention concerne la fabrication au moyen d'un moulage par extrusion d'une entretoise pour chemise d'eau qui est montée dans une partie interne d'une chemise d'eau, et qui commande l'écoulement d'une eau de refroidissement, et l'invention permet de fabriquer selon des propriétés de moulage satisfaisantes chacune des pièces séparées de l'entretoise pour chemise d'eau constituée d'une pluralité de pièces séparées, et l'entretoise pour chemise d'eau dont la forme permet une insertion morceau par morceau dans la partie interne de la chemise d'eau.
PCT/JP2016/050900 2015-01-16 2016-01-14 Procédé de fabrication d'entretoise pour chemise d'eau WO2016114333A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16737404.0A EP3246554A4 (fr) 2015-01-16 2016-01-14 Procédé de fabrication d'entretoise pour chemise d'eau
CN201680006028.3A CN107110060B (zh) 2015-01-16 2016-01-14 水冷套用间隔件的制造方法
US15/543,638 US10562215B2 (en) 2015-01-16 2016-01-14 Water jacket spacer production method

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2015006452 2015-01-16
JP2015-006452 2015-01-16
JP2015245456A JP6328094B2 (ja) 2015-01-16 2015-12-16 ウォータジャケット用スペーサの製造方法
JP2015-245456 2015-12-16

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WO2016114333A1 true WO2016114333A1 (fr) 2016-07-21

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Citations (8)

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Publication number Priority date Publication date Assignee Title
JPH06173675A (ja) * 1992-12-04 1994-06-21 Kubota Corp 多気筒水冷エンジンの冷却装置
JP2005105878A (ja) * 2003-09-29 2005-04-21 Uchiyama Mfg Corp ウォータジャケット用スペーサの製造方法
JP2005120949A (ja) * 2003-10-17 2005-05-12 Toyota Motor Corp シリンダブロックの冷却構造
JP2008031939A (ja) * 2006-07-31 2008-02-14 Toyota Motor Corp 内燃機関冷却用熱媒体流路区画部材、内燃機関冷却機構及び内燃機関冷却機構形成方法
JP2010194780A (ja) * 2009-02-24 2010-09-09 Fujifilm Corp 射出成形物
JP2012036742A (ja) * 2010-08-03 2012-02-23 Honda Motor Co Ltd スペーサ
JP2012101524A (ja) * 2010-11-08 2012-05-31 Sanei Mold:Kk 射出成形におけるガス抜き効果の高い金型
JP2015222071A (ja) * 2014-04-30 2015-12-10 ニチアス株式会社 ウォータジャケット用スペーサの製造方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06173675A (ja) * 1992-12-04 1994-06-21 Kubota Corp 多気筒水冷エンジンの冷却装置
JP2005105878A (ja) * 2003-09-29 2005-04-21 Uchiyama Mfg Corp ウォータジャケット用スペーサの製造方法
JP2005120949A (ja) * 2003-10-17 2005-05-12 Toyota Motor Corp シリンダブロックの冷却構造
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