WO2015091775A1 - Barrel for a delivery valve, method and mould for manufacturing such a barrel, and valve comprising such a barrel - Google Patents
Barrel for a delivery valve, method and mould for manufacturing such a barrel, and valve comprising such a barrel Download PDFInfo
- Publication number
- WO2015091775A1 WO2015091775A1 PCT/EP2014/078434 EP2014078434W WO2015091775A1 WO 2015091775 A1 WO2015091775 A1 WO 2015091775A1 EP 2014078434 W EP2014078434 W EP 2014078434W WO 2015091775 A1 WO2015091775 A1 WO 2015091775A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mold
- plug
- edge
- bushel
- valve
- 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.)
- Ceased
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
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- 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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/045—Particular coverings and materials
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- 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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
- B29C2045/0034—Mould parting lines
Definitions
- the invention relates to a plug for a dispensing valve, in particular a valve for dispensing coolant for a motor vehicle, a method and a mold for manufacturing such a plug, and a liquid dispensing valve comprising such a plug.
- the invention finds an application in particular for the coolant distribution valves for a motor vehicle, in particular the valves comprising a rotary valve in a housing of the body of the valve, composed of a segment which cooperating with the housing allows the dispensing liquid into various ports of the valve.
- This plug makes it possible in particular to cover or to release by rotation the access to said orifices. It matches the shape of the housing, thus preventing the liquid from penetrating said orifices.
- Such a bushel is generally derived from plastic molding, which generates seal lines at the junction of mold parts, molding, which can be detrimental to the sealing of the bushel in its housing.
- the invention aims to improve the situation.
- a plug for a dispensing valve including a coolant distribution valve for a motor vehicle, resulting from molding of material, said plug comprising at least one seal line coming from molding, said seal line being arranged on a portion of the bush's edge, at a distance from an outer edge of the bushel.
- said plug is configured to be movably mounted, in particular rotary, in particular in axial rotation, in a housing of the valve,
- said plug comprises a segment cooperating with said housing, in particular in the form of an angularly open ring,
- said edge portion is disposed on said segment
- said joint line or lines are positioned close to an inner edge of said edge portion, in other words an edge of the segment facing the axis of the plug,
- the said line or lines of joint are positioned at the level of the said inner edge
- the invention also relates to a method for manufacturing a valve for a dispensing valve, in particular a valve for dispensing coolant for a motor vehicle, the method comprising a step of injecting molding material in the liquid state into the at least two mold parts applied to one another to define a molding cavity corresponding to the shape of said plug and defining a line of joint at the junction of said mold parts, said joint line being intended to be arranged opposite a portion of song of said bushel, at a distance from an outer edge of the bushel.
- Said molding material is advantageously a plastic material.
- the invention also relates to a mold for the manufacture of a plug for a dispensing valve, in particular a coolant distribution valve for a motor vehicle, comprising at least two mold parts intended to be applied to one another, these mold parts being configured to delimit during their application on one another a molding cavity corresponding to the shape of said plug and defining a seal line at the junction of said mold parts, said seal line being intended to be disposed on a portion of the bush edge, remote from an outer edge of said bushel.
- Said mold parts may each comprise a portion of said edge portion, so that said joint line resulting from the demolding of the mold, at the opening of the mold parts, is disposed on said edge portion.
- one of the mold parts has a portion of edge equivalent to said edge portion and the other mold portion has no edge portion, the other mold portion corresponding to an inner face of the segment of the plug.
- said joint line junction of said mold parts is disposed at said inner face of said segment, at the periphery thereof.
- the said edge portion or portions may be derived from milling and comprises in particular an inner edge of concave rounded section, in particular corresponding to milling said ultra-high speed.
- Said edge section is advantageously circular with a radius corresponding to the radius of the milling cutter for said milling.
- Said mold parts, as a whole, are advantageously derived from milling, in particular milling with high speed machining.
- the invention also relates to a liquid distribution valve comprising such a plug.
- FIG. 1 is a partial perspective view of a bushel of a coolant distribution valve for a motor vehicle, according to the invention
- Figures 2 and 3 are partial perspective views of one of the mold parts of the plug according to Figure 1
- Figure 4 is an axial sectional view of the mold parts according to Figures 2 and 3, applied to one another.
- the invention relates to a plug 1, in particular for a coolant distribution valve for a motor vehicle, not shown.
- This bushel 1 is derived from molding matter.
- Said valve is in particular of the type comprising a valve body having a housing of revolution 3, in dotted line, for a plug, such as said plug 1, able to turn about an axis of rotation and to take different angular positions to check the fluid distribution through the valve orifices.
- the plug 1 comprises a segment 5 in the form of angularly open ring, cooperating with said housing 3.
- said valve comprises in particular an axial orifice which usually constitutes an inlet channel for the fluid, and lateral orifices constituting outlet channels for the fluid, the distribution of the fluid through the channels. output being controlled according to the angular position taken by the bushel.
- the side wall has three lateral orifices which form outlet channels and which communicate respectively with three branches that comprises the fluid circulation circuit associated with the valve.
- Such a control valve finds particular application in motor vehicle thermal engine cooling circuits.
- the axial orifice, forming a fluid inlet is connected to a fluid inlet of cooling from the engine, while the three lateral orifices, forming fluid outlet, are respectively connected to three branches of the circuit.
- This circuit comprises a first branch which contains an engine cooling radiator, a second branch which constitutes a bypass of the cooling radiator, optionally comprising other exchangers, and a third branch which contains a heater for heating the passenger compartment.
- Said plug 1 comprises at least one seal line 7 resulting from the molding, more particularly from the molded material at the junction of the mold parts 9, visible in particular in FIG. 4, of said molding.
- said joint line 7 is disposed on a singing part 1 1 of said plug 1, in particular of said segment 5, at a distance from an outer edge 13 of the latter.
- external edge 13 of said edge portion 1 1 is meant an edge of said edge portion disposed opposite side walls of said housing 3.
- the one or more joint lines 7 correspond to creepage lines of the molded material, joining the parts 9 of the mold. These seal lines 7 generally form burrs on the molded part, here the bushel 1. This or these lines of seal 7, being arranged on a portion of edge 1 1 of the plug, at a distance from its outer edge 13, they are not likely to interpose between the housing 3 and the plug 1 and to harm the sealing the plug 1 in its housing 3, particularly its segment 5 against the side walls of said housing 3, as will be specified below.
- said one or more joint lines 7 are positioned close to an inner edge 15 of said edge portion 1 1 of the segment, in other words an edge turned towards the axis d of the plug 1.
- This arrangement provides a wide gap in the margin of said outer edge 13, especially for thin segment bushels or thin.
- said one or more joint lines 7 are positioned at said inner edge 15, as here, in other words in coincidence with this inner edge 15.
- one of the mold parts 9 can be flat, as shown in Figure 4, and the other have a cavity 17 in the form of the plug 1, in particular of said segment 5.
- the mold release is obtained by simply opening one of the mold parts 9 with respect to the other, here in an axial translation of a mold portion 9 relative to the other.
- the invention also relates to a method of manufacturing such a plug 1.
- the method comprises a step of injecting molding material 19 in the liquid state into at least two mold parts 9 applied to one another, for example said mold parts 9 mentioned above.
- these mold portions 9 delimit in this state a molding cavity 21 corresponding to the shape of said plug 1, in particular said segment 5, and define said seal line 7 at the junction of said mold portions 9.
- This joint line 7 is disposed on a singing portion 1 1 of said plug 1, in particular of said segment 5, at a distance from an outer edge 13 of this edge portion 1 January.
- Said molding material 19 is advantageously a plastic material, which generates a thin rib-shaped seal line 7 at said juncture of the mold parts 9, at molding.
- the invention also relates to a mold 23 for implementing said manufacturing method.
- a mold 23 comprises, as here and as mentioned above, at least two mold parts 9 intended to be applied one on the other. These mold portions 9 are configured to delimit during their application to each other a molding cavity 21 corresponding to said shape of the plug 1, in particular the segment 5, and define said seal line 7 at the junction of said parts 9 of mold. This line of seal 7 is disposed on said edge portion 1 1 of the plug, in particular of said segment 5, at a distance from the outer edge 13 of this edge portion January 1.
- Said mold portions 9 may, alternatively, each comprise a portion of edge, not shown, of said edge portion 1 1, forming together, to the application of the mold parts 9 one on the other, said part singing 1 1.
- said seal line 7 resulting from demolding of the mold 23, at the opening of the mold parts 9, is arranged on the edge of the molding cavity 21 of molded material or the molded plug 1.
- one of the mold portions 9 has a portion of edge equivalent to said edge portion 11 and the other portion 9 of the mold has no edge portion.
- This last mold part 9 corresponds to an inner face 25 of the plug, in particular of said segment 5.
- said seal line 7 at the junction of said mold portions 9 is disposed at said inner face 25 of the segment, at the periphery of the latter as seen in Figures 1 and 4. This configuration of the mold facilitates in particular the demolding as mentioned.
- the said portion or portions of edge, corresponding here to the said edge portion 1 1, may comprise an inner edge 27 of concave rounded section.
- These edge portions, as well as the mold parts 9, are advantageously derived from milling, in particular high-speed machining milling.
- Such a method of manufacturing the mold parts 9, in particular that comprising a portion of edge corresponding to the edge portion 1 1, as shown, is easier and faster than that of the current known modes, such as the classic electro erosion.
- Such a milling method will in particular make it possible to perform operations for grinding the surfaces of the molding cavity during the mold development steps.
- Said edge section 27 is in particular circular, of radius r corresponding to the radius of the cutter 29 used for said milling.
- Such a rounded edge section 27 of the mold part contributes to forming an outer edge 13 of circular section on the segment 5 of the molded plug. This edge 13 thus formed has no influence on the operation of the plug 1 relative to the housing 3.
- the invention thus provides a plug, in particular for a dispensing valve, especially a motor vehicle coolant, which provides a high level of tightness while remaining simple, easy to perform and inexpensive.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Valve Housings (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
BOISSEAU POUR UNE VANNE DE DISTRIBUTION, PROCEDE ET MOULE DE FABRICATION D'UN TEL BOISSEAU, ET VANNE COMPRENANT UN TEL HOUSING FOR A DISTRIBUTION VALVE, METHOD AND MOLD FOR MANUFACTURING SUCH HOUSING, AND VALVE COMPRISING SUCH
BOISSEAU L'invention concerne un boisseau pour une vanne de distribution, notamment vanne de distribution de liquide de refroidissement pour véhicule automobile, un procédé et un moule de fabrication d'un tel boisseau ainsi qu'une vanne de distribution de liquide comprenant un tel boisseau. L'invention trouve une application notamment pour les vannes de distribution de liquide de refroidissement pour véhicule automobile, en particulier les vannes comprenant un boisseau rotatif dans un logement du corps de la vanne, composé d'un segment qui en coopérant avec le logement permet la distribution de liquide dans divers orifices de la vanne. Ce boisseau permet notamment de recouvrir ou de dégager par rotation l'accès auxdits orifices. Il épouse la forme du logement, empêchant ainsi le liquide de pénétrer lesdits orifices. Un tel boisseau est généralement issu de moulage en matière plastique, ce qui génère des lignes de joint à la jonction des parties du moule, au moulage, qui peuvent être préjudiciables à l'étanchéité du boisseau dans son logement. The invention relates to a plug for a dispensing valve, in particular a valve for dispensing coolant for a motor vehicle, a method and a mold for manufacturing such a plug, and a liquid dispensing valve comprising such a plug. . The invention finds an application in particular for the coolant distribution valves for a motor vehicle, in particular the valves comprising a rotary valve in a housing of the body of the valve, composed of a segment which cooperating with the housing allows the dispensing liquid into various ports of the valve. This plug makes it possible in particular to cover or to release by rotation the access to said orifices. It matches the shape of the housing, thus preventing the liquid from penetrating said orifices. Such a bushel is generally derived from plastic molding, which generates seal lines at the junction of mold parts, molding, which can be detrimental to the sealing of the bushel in its housing.
L'invention a pour but d'améliorer la situation. The invention aims to improve the situation.
Il est en effet proposé un boisseau pour une vanne de distribution, notamment vanne de distribution de liquide de refroidissement pour véhicule automobile, issu de moulage de matière, ledit boisseau comprenant au moins une ligne de joint venant de moulage, ladite ligne de joint étant disposée sur une partie de chant du boisseau, à distance d'un bord externe de cette dernière. It is indeed proposed a plug for a dispensing valve, including a coolant distribution valve for a motor vehicle, resulting from molding of material, said plug comprising at least one seal line coming from molding, said seal line being arranged on a portion of the bush's edge, at a distance from an outer edge of the bushel.
Ainsi, la ou lesdites lignes de joint formant bavures, étant disposées sur le chant du boisseau, ne risquent pas de s'interposer entre le logement et le boisseau et de nuire à l'étanchéité du boisseau dans son logement, en particulier l'étanchéité entre lesdits orifices recouverts et dégagés en fonction de la position angulaire du boisseau. La ou lesdites lignes de joint peuvent ainsi être ou non ébavurées, ceci sans risque d'affecter l'étanchéité du boisseau dans son logement, puisqu'elles ne sont pas destinées à porter contre le logement. Selon des caractéristiques de l'invention qui peuvent être prises seules ou en combinaison : Thus, where said lines forming a burr, being arranged on the edge of the plug, are not likely to interpose between the housing and the plug and adversely affect the sealing of the plug in its housing, in particular the tightness between said openings covered and disengaged according to the angular position of the bushel. The or said joint lines may thus be deburred or not, this without affecting the tightness of the bushel in its housing, since they are not intended to bear against the housing. According to features of the invention that can be taken alone or in combination:
- ledit boisseau est configuré pour être monté mobile, notamment rotatif, en particulier en rotation axiale, dans un logement de la vanne, said plug is configured to be movably mounted, in particular rotary, in particular in axial rotation, in a housing of the valve,
- ledit boisseau comprend un segment coopérant avec ledit logement, notamment en forme d'anneau angulairement ouvert, said plug comprises a segment cooperating with said housing, in particular in the form of an angularly open ring,
- ladite partie de chant est disposée sur ledit segment, said edge portion is disposed on said segment,
- la ou lesdites lignes de joint sont positionnées proches d'un bord intérieur de ladite partie de chant, autrement dit un bord du segment tourné vers l'axe du boisseau, said joint line or lines are positioned close to an inner edge of said edge portion, in other words an edge of the segment facing the axis of the plug,
- la ou lesdites lignes de joint sont positionnées au niveau dudit bord intérieur, the said line or lines of joint are positioned at the level of the said inner edge,
- ledit bord externe de la partie de chant est arrondi. L'invention concerne également un procédé de fabrication d'un boisseau pour une vanne de distribution, notamment vanne de distribution de liquide de refroidissement pour véhicule automobile, le procédé comprenant une étape d'injection de matière de moulage à l'état liquide dans au moins deux parties de moule appliquées l'une sur l'autre pour délimiter une cavité de moulage correspondant à la forme dudit boisseau et définissant une ligne de joint en jonction desdites parties de moule, ladite ligne de joint étant destinée à être disposée en regard d'une partie de chant dudit boisseau, à distance d'un bord externe du boisseau. Ladite matière de moulage est avantageusement une matière plastique. - said outer edge of the edge portion is rounded. The invention also relates to a method for manufacturing a valve for a dispensing valve, in particular a valve for dispensing coolant for a motor vehicle, the method comprising a step of injecting molding material in the liquid state into the at least two mold parts applied to one another to define a molding cavity corresponding to the shape of said plug and defining a line of joint at the junction of said mold parts, said joint line being intended to be arranged opposite a portion of song of said bushel, at a distance from an outer edge of the bushel. Said molding material is advantageously a plastic material.
L'invention concerne également un moule de fabrication d'un boisseau pour une vanne de distribution, notamment vanne de distribution de liquide de refroidissement pour véhicule automobile, comprenant au moins deux parties de moule destinées à être appliquées l'une sur l'autre, ces parties de moule étant configurées pour délimiter lors de leur application l'une sur l'autre une cavité de moulage correspondant à la forme dudit boisseau et définissant une ligne de joint en jonction desdites parties de moule, ladite ligne de joint étant destinée à être disposée sur une partie de chant du boisseau, à distance d'un bord externe dudit boisseau. Lesdites parties de moule peuvent comporter chacune une portion de ladite partie de chant, de sorte que ladite ligne de joint issue du démoulage du moule, à l'ouverture des parties de moule, soit disposée sur ladite partie de chant. The invention also relates to a mold for the manufacture of a plug for a dispensing valve, in particular a coolant distribution valve for a motor vehicle, comprising at least two mold parts intended to be applied to one another, these mold parts being configured to delimit during their application on one another a molding cavity corresponding to the shape of said plug and defining a seal line at the junction of said mold parts, said seal line being intended to be disposed on a portion of the bush edge, remote from an outer edge of said bushel. Said mold parts may each comprise a portion of said edge portion, so that said joint line resulting from the demolding of the mold, at the opening of the mold parts, is disposed on said edge portion.
De préférence, l'une des parties de moule comporte une portion de chant équivalente à ladite partie de chant et l'autre partie de moule ne comporte aucune portion de chant, cette autre partie de moule correspondant à une face interne du segment du boisseau. Ainsi, ladite ligne de joint en jonction desdites parties de moule est disposée au niveau de la dite face interne dudit segment, en périphérie de cette dernière. Preferably, one of the mold parts has a portion of edge equivalent to said edge portion and the other mold portion has no edge portion, the other mold portion corresponding to an inner face of the segment of the plug. Thus, said joint line junction of said mold parts is disposed at said inner face of said segment, at the periphery thereof.
La ou lesdites portions de chant peuvent être issues de fraisage et comporte notamment une arête interne de section arrondie concave, correspondant en particulier à un fraisage dit à ultra grande vitesse. The said edge portion or portions may be derived from milling and comprises in particular an inner edge of concave rounded section, in particular corresponding to milling said ultra-high speed.
Ladite section d'arête est avantageusement circulaire de rayon correspondant au rayon de la fraise pour ledit fraisage. Lesdites parties de moule, dans leur ensemble, sont avantageusement issues de fraisage, notamment un fraisage à usinage à grande vitesse. Said edge section is advantageously circular with a radius corresponding to the radius of the milling cutter for said milling. Said mold parts, as a whole, are advantageously derived from milling, in particular milling with high speed machining.
L'invention concerne également une vanne de distribution de liquide comprenant un tel boisseau. The invention also relates to a liquid distribution valve comprising such a plug.
D'autres caractéristiques, détails et avantages de l'invention ressortiront plus clairement de la description ci-après d'un mode de réalisation de l'invention en référence au dessin annexé, dans lequel : Other characteristics, details and advantages of the invention will emerge more clearly from the following description of an embodiment of the invention with reference to the appended drawing, in which:
- la figure 1 est une vue partielle en perspective d'un boisseau d'une vanne de distribution de liquide de refroidissement pour véhicule automobile, selon l'invention, FIG. 1 is a partial perspective view of a bushel of a coolant distribution valve for a motor vehicle, according to the invention,
les figures 2 et 3 sont des vues partielles en perspective d'une des parties de moule du boisseau selon la figure 1 , et la figure 4 est une vue en coupe axiale des parties de moule selon les figures 2 et 3, appliquées l'une sur l'autre. Figures 2 and 3 are partial perspective views of one of the mold parts of the plug according to Figure 1, and Figure 4 is an axial sectional view of the mold parts according to Figures 2 and 3, applied to one another.
Il est à noter que les figures exposent l'invention de manière détaillée, lesdites figures pouvant bien entendu servir à mieux définir l'invention le cas échéant. En outre, des références identiques sont utilisées pour désigner des éléments analogues ou identiques. It should be noted that the figures expose the invention in detail, said figures can of course be used to better define the invention where appropriate. In addition, identical references are used to designate like or identical elements.
Avec référence au dessin, en particulier à la figure 1 , l'invention concerne un boisseau 1 , notamment pour une vanne de distribution de liquide de refroidissement pour véhicule automobile, non représentée. Ce boisseau 1 est issu de moulage de matière. With reference to the drawing, in particular in Figure 1, the invention relates to a plug 1, in particular for a coolant distribution valve for a motor vehicle, not shown. This bushel 1 is derived from molding matter.
Ladite vanne est notamment du type comprenant un corps de vanne présentant un logement de révolution 3, en trait mixte, pour un boisseau, tel que ledit boisseau 1 , propre à tourner autour d'un axe d de rotation et à prendre différentes positions angulaires pour contrôler la distribution du fluide au travers d'orifices de la vanne. Dans cette vanne, le boisseau 1 comprend un segment 5 en forme d'anneau angulairement ouvert, coopérant avec ledit logement 3. Said valve is in particular of the type comprising a valve body having a housing of revolution 3, in dotted line, for a plug, such as said plug 1, able to turn about an axis of rotation and to take different angular positions to check the fluid distribution through the valve orifices. In this valve, the plug 1 comprises a segment 5 in the form of angularly open ring, cooperating with said housing 3.
Selon un exemple de réalisation, non illustré, ladite vanne comprend en particulier un orifice axial qui constitue habituellement une voie d'entrée pour le fluide, et des orifices latéraux constituant des voies de sortie pour le fluide, la distribution du fluide au travers des voies de sortie étant contrôlée en fonction de la position angulaire prise par le boisseau. According to an exemplary embodiment, not illustrated, said valve comprises in particular an axial orifice which usually constitutes an inlet channel for the fluid, and lateral orifices constituting outlet channels for the fluid, the distribution of the fluid through the channels. output being controlled according to the angular position taken by the bushel.
Dans une application préférentielle d'une telle vanne, la paroi latérale comporte trois orifices latéraux qui forment des voies de sortie et qui communiquent respectivement avec trois branches que comporte le circuit de circulation de fluide associé à la vanne. In a preferred application of such a valve, the side wall has three lateral orifices which form outlet channels and which communicate respectively with three branches that comprises the fluid circulation circuit associated with the valve.
Une telle vanne de commande trouve une application particulière dans les circuits de refroidissement de moteurs thermiques de véhicules automobiles. Dans ce cas, l'orifice axial, formant entrée de fluide, est relié à une arrivée de fluide de refroidissement en provenance du moteur thermique, tandis que les trois orifices latéraux, formant sortie de fluide, sont reliés respectivement à trois branches du circuit. Ce circuit comprend une première branche qui contient un radiateur de refroidissement du moteur, une deuxième branche qui constitue une dérivation du radiateur de refroidissement, comportant éventuellement d'autres échangeurs, et une troisième branche qui contient un aérotherme pour le chauffage de l'habitacle. Such a control valve finds particular application in motor vehicle thermal engine cooling circuits. In this case, the axial orifice, forming a fluid inlet, is connected to a fluid inlet of cooling from the engine, while the three lateral orifices, forming fluid outlet, are respectively connected to three branches of the circuit. This circuit comprises a first branch which contains an engine cooling radiator, a second branch which constitutes a bypass of the cooling radiator, optionally comprising other exchangers, and a third branch which contains a heater for heating the passenger compartment.
Ledit boisseau 1 comprend au moins une ligne de joint 7 résultant du moulage, plus particulièrement de la matière moulée en jonction des parties 9 de moule, visibles notamment à la figure 4, dudit moulage. Said plug 1 comprises at least one seal line 7 resulting from the molding, more particularly from the molded material at the junction of the mold parts 9, visible in particular in FIG. 4, of said molding.
Selon l'invention, ladite ligne de joint 7 est disposée sur une partie de chant 1 1 dudit boisseau 1 , en particulier dudit segment 5, à distance d'un bord externe 13 de cette dernière. According to the invention, said joint line 7 is disposed on a singing part 1 1 of said plug 1, in particular of said segment 5, at a distance from an outer edge 13 of the latter.
On entend par bord externe 13 de ladite partie de chant 1 1 un bord de ladite partie de chant disposé en vis-à-vis de parois latérales dudit logement 3. By external edge 13 of said edge portion 1 1 is meant an edge of said edge portion disposed opposite side walls of said housing 3.
La ou lesdites lignes de joint 7 correspondent à des lignes de fuite de la matière moulée, en jonction des parties 9 du moule. Ces lignes de joint 7 forment généralement des bavures sur la pièce moulée, ici le boisseau 1 . Cette ou ces lignes de joint 7, étant disposées sur une partie de chant 1 1 du boisseau, à distance de son bord externe 13, elles ne risquent pas de s'interposer entre le logement 3 et le boisseau 1 et de nuire à l'étanchéité du boisseau 1 dans son logement 3, plus particulièrement de son segment 5 contre les parois latérales dudit logement 3, comme il sera précisé ci après. The one or more joint lines 7 correspond to creepage lines of the molded material, joining the parts 9 of the mold. These seal lines 7 generally form burrs on the molded part, here the bushel 1. This or these lines of seal 7, being arranged on a portion of edge 1 1 of the plug, at a distance from its outer edge 13, they are not likely to interpose between the housing 3 and the plug 1 and to harm the sealing the plug 1 in its housing 3, particularly its segment 5 against the side walls of said housing 3, as will be specified below.
De préférence, la ou lesdites lignes de joint 7 sont positionnées proches d'un bord intérieur 15 de ladite partie de chant 1 1 du segment, autrement dit un bord tourné vers l'axe d du boisseau 1 . Cette disposition ménage un intervalle large en marge dudit bord externe 13, notamment pour les boisseaux à segment mince ou de faible épaisseur. Selon un mode de réalisation encore plus préférentiel, la ou lesdites lignes de joint 7 sont positionnées au niveau dudit bord intérieur 15, comme ici, autrement dit en coïncidence avec ce bord intérieur 15. Cette particularité facilite d'une part la fabrication des parties 9 de moule et le démoulage des parties 9 de moule d'autre part. En effet, l'une des parties 9 de moule peut être plane, comme représenté à la figure 4, et l'autre présenter une cavité 17 à la forme du boisseau 1 , en particulier du dit segment 5. En outre, le démoulage est obtenu par simple ouverture d'une des parties 9 de moule par rapport à l'autre, ici selon une translation axiale d'une partie 9 de moule par rapport à l'autre. Preferably, said one or more joint lines 7 are positioned close to an inner edge 15 of said edge portion 1 1 of the segment, in other words an edge turned towards the axis d of the plug 1. This arrangement provides a wide gap in the margin of said outer edge 13, especially for thin segment bushels or thin. According to an even more preferred embodiment, said one or more joint lines 7 are positioned at said inner edge 15, as here, in other words in coincidence with this inner edge 15. This feature makes it easier to manufacture the parts 9 mold and demolding the mold parts 9 on the other hand. Indeed, one of the mold parts 9 can be flat, as shown in Figure 4, and the other have a cavity 17 in the form of the plug 1, in particular of said segment 5. In addition, the mold release is obtained by simply opening one of the mold parts 9 with respect to the other, here in an axial translation of a mold portion 9 relative to the other.
L'invention concerne également un procédé de fabrication d'un tel boisseau 1 . The invention also relates to a method of manufacturing such a plug 1.
Le procédé comprend une étape d'injection de matière de moulage 19 à l'état liquide dans au moins deux parties 9 de moule appliquées l'une sur l'autre, par exemple lesdites parties 9 de moule évoquées plus haut. Comme déjà dit, ces parties 9 de moule délimitent dans cet état une cavité de moulage 21 correspondant à la forme dudit boisseau 1 , en particulier ledit segment 5, et définissent ladite ligne de joint 7 en jonction desdites parties 9 de moule. Cette ligne de joint 7 est disposée sur une partie de chant 1 1 dudit boisseau 1 , en particulier dudit segment 5, à distance d'un bord externe 13 de cette partie de chant 1 1 . The method comprises a step of injecting molding material 19 in the liquid state into at least two mold parts 9 applied to one another, for example said mold parts 9 mentioned above. As already said, these mold portions 9 delimit in this state a molding cavity 21 corresponding to the shape of said plug 1, in particular said segment 5, and define said seal line 7 at the junction of said mold portions 9. This joint line 7 is disposed on a singing portion 1 1 of said plug 1, in particular of said segment 5, at a distance from an outer edge 13 of this edge portion 1 January.
Il y a ensuite une étape de solidification de ladite matière de moulage 19 injectée dans lesdites deux parties 9 de moule appliquées l'une sur l'autre, puis une étape d'ouverture, ainsi que mentionné, desdites parties 9 de moule ou démoulage pour libérer ledit volume 21 de matière moulée correspondant audit boisseau 1 ainsi moulé. There is then a step of solidification of said molding material 19 injected into said two mold parts 9 applied to one another, then a step of opening, as mentioned, of said mold parts 9 or demoulding for releasing said volume 21 of molded material corresponding to said plug 1 and molded.
Ladite matière de moulage 19 est avantageusement une matière plastique, laquelle génère une ligne de joint 7 en forme de nervure fine à ladite jonction des parties 9 de moule, au moulage. Said molding material 19 is advantageously a plastic material, which generates a thin rib-shaped seal line 7 at said juncture of the mold parts 9, at molding.
L'invention concerne également un moule 23 pour la mise en œuvre dudit procédé de fabrication. Un tel moule 23 comprend, comme ici et ainsi que précité, au moins deux parties 9 de moule destinées à être appliquées l'une sur l'autre. Ces parties 9 de moule sont configurées pour délimiter lors de leur application l'une sur l'autre une cavité de moulage 21 correspondant à ladite forme du boisseau 1 , en particulier le segment 5, et définissent ladite ligne de joint 7 en jonction desdites parties 9 de moule. Cette ligne de joint 7 est disposée sur ladite partie de chant 1 1 du boisseau, en particulier dudit segment 5, à distance du bord externe 13 de cette partie de chant 1 1 . The invention also relates to a mold 23 for implementing said manufacturing method. Such a mold 23 comprises, as here and as mentioned above, at least two mold parts 9 intended to be applied one on the other. These mold portions 9 are configured to delimit during their application to each other a molding cavity 21 corresponding to said shape of the plug 1, in particular the segment 5, and define said seal line 7 at the junction of said parts 9 of mold. This line of seal 7 is disposed on said edge portion 1 1 of the plug, in particular of said segment 5, at a distance from the outer edge 13 of this edge portion January 1.
Lesdites parties 9 de moule peuvent, alternativement, comporter chacune une portion de chant, non représentée, de la dite partie de chant 1 1 , formant ensemble, à l'application des parties 9 de moule l'une sur l'autre, ladite partie de chant 1 1 . De la sorte, ladite ligne de joint 7 issue du démoulage du moule 23, à l'ouverture des parties 9 de moule, est disposée sur le chant de la cavité de moulage 21 de matière moulée ou du boisseau 1 moulé. Said mold portions 9 may, alternatively, each comprise a portion of edge, not shown, of said edge portion 1 1, forming together, to the application of the mold parts 9 one on the other, said part singing 1 1. In this way, said seal line 7 resulting from demolding of the mold 23, at the opening of the mold parts 9, is arranged on the edge of the molding cavity 21 of molded material or the molded plug 1.
De préférence, comme dans le présent cas, l'une des parties 9 de moule comporte une portion de chant équivalente à ladite partie de chant 1 1 et l'autre partie 9 de moule ne comporte aucune portion de chant. Cette dernière partie 9 de moule correspond à une face interne 25 du boisseau, en particulier dudit segment 5. Ainsi, ladite ligne de joint 7 en jonction desdites parties 9 de moule est disposée au niveau de la dite face interne 25 du segment, en périphérie de cette dernière comme on le voit aux figures 1 et 4. Cette configuration du moule facilite en particulier le démoulage ainsi que mentionné. Preferably, as in the present case, one of the mold portions 9 has a portion of edge equivalent to said edge portion 11 and the other portion 9 of the mold has no edge portion. This last mold part 9 corresponds to an inner face 25 of the plug, in particular of said segment 5. Thus, said seal line 7 at the junction of said mold portions 9 is disposed at said inner face 25 of the segment, at the periphery of the latter as seen in Figures 1 and 4. This configuration of the mold facilitates in particular the demolding as mentioned.
La ou lesdites portions de chant, correspondant ici à ladite partie de chant 1 1 , peuvent comporter une arête interne 27 de section arrondie concave. Ces portions de chant, de même que les parties 9 de moule, sont avantageusement issues de fraisage, en particulier d'un fraisage à usinage à grande vitesse. Un tel mode de fabrication des parties 9 de moule, en particulier de celle comportant une portion de chant correspondant à la partie de chant 1 1 , telle que représentée, est plus facile et plus rapide que celui des modes connus actuels, tel que le mode classique par électro érosion. Un tel procédé de fraisage permettra en particulier d'opérer des opérations de rectification des surfaces de la cavité de moulage, lors des étapes de mise au point du moule. The said portion or portions of edge, corresponding here to the said edge portion 1 1, may comprise an inner edge 27 of concave rounded section. These edge portions, as well as the mold parts 9, are advantageously derived from milling, in particular high-speed machining milling. Such a method of manufacturing the mold parts 9, in particular that comprising a portion of edge corresponding to the edge portion 1 1, as shown, is easier and faster than that of the current known modes, such as the classic electro erosion. Such a milling method will in particular make it possible to perform operations for grinding the surfaces of the molding cavity during the mold development steps.
Ladite section d'arête 27 est notamment circulaire, de rayon r correspondant au rayon de la fraise 29 utilisée pour ledit fraisage. Une telle section arrondie d'arête 27 de la partie de moule contribue à former un bord externe 13 de section circulaire sur le segment 5 du boisseau moulé. Ce bord 13 ainsi formé n'a pas d'influence sur le fonctionnement du boisseau 1 relativement au logement 3. Said edge section 27 is in particular circular, of radius r corresponding to the radius of the cutter 29 used for said milling. Such a rounded edge section 27 of the mold part contributes to forming an outer edge 13 of circular section on the segment 5 of the molded plug. This edge 13 thus formed has no influence on the operation of the plug 1 relative to the housing 3.
L'invention apporte ainsi un boisseau, notamment pour une vanne de distribution, notamment de liquide de refroidissement pour véhicule automobile, qui apporte un haut niveau d'étanchéité tout en restant simple, facile à réaliser et peu onéreux. The invention thus provides a plug, in particular for a dispensing valve, especially a motor vehicle coolant, which provides a high level of tightness while remaining simple, easy to perform and inexpensive.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1363042A FR3015615B1 (en) | 2013-12-19 | 2013-12-19 | BOISSEAU FOR A DISTRIBUTION VALVE, METHOD AND MOLD FOR MANUFACTURING SUCH BOISSEAU AND VALVE COMPRISING SUCH BOISSEAU |
| FR1363042 | 2013-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015091775A1 true WO2015091775A1 (en) | 2015-06-25 |
Family
ID=50483013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2014/078434 Ceased WO2015091775A1 (en) | 2013-12-19 | 2014-12-18 | Barrel for a delivery valve, method and mould for manufacturing such a barrel, and valve comprising such a barrel |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR3015615B1 (en) |
| WO (1) | WO2015091775A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1332394A (en) * | 1970-09-11 | 1973-10-03 | Fisker & Nielsen As | Valve for use as a pressure equalizer in pneumatic systems |
| US4314586A (en) * | 1978-08-30 | 1982-02-09 | Tronomed International, Inc. | Disposable valve |
| DE3906219A1 (en) * | 1989-02-28 | 1990-08-30 | Sata Farbspritztechnik | Control valve |
| EP1023982A1 (en) * | 1999-01-29 | 2000-08-02 | Novasfer S.r.l. | Method for producing a valve control element and valve control element thus produced |
| FR2872240A1 (en) * | 2004-06-28 | 2005-12-30 | Valeo Thermique Moteur Sas | CONTROL VALVE FOR A FLUID CIRCUIT CIRCUIT, ESPECIALLY FOR A COOLING CIRCUIT OF AN ENGINE |
-
2013
- 2013-12-19 FR FR1363042A patent/FR3015615B1/en not_active Expired - Fee Related
-
2014
- 2014-12-18 WO PCT/EP2014/078434 patent/WO2015091775A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1332394A (en) * | 1970-09-11 | 1973-10-03 | Fisker & Nielsen As | Valve for use as a pressure equalizer in pneumatic systems |
| US4314586A (en) * | 1978-08-30 | 1982-02-09 | Tronomed International, Inc. | Disposable valve |
| DE3906219A1 (en) * | 1989-02-28 | 1990-08-30 | Sata Farbspritztechnik | Control valve |
| EP1023982A1 (en) * | 1999-01-29 | 2000-08-02 | Novasfer S.r.l. | Method for producing a valve control element and valve control element thus produced |
| FR2872240A1 (en) * | 2004-06-28 | 2005-12-30 | Valeo Thermique Moteur Sas | CONTROL VALVE FOR A FLUID CIRCUIT CIRCUIT, ESPECIALLY FOR A COOLING CIRCUIT OF AN ENGINE |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3015615A1 (en) | 2015-06-26 |
| FR3015615B1 (en) | 2016-06-10 |
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