[go: up one dir, main page]

WO2007128669A2 - Procédé pour produire une unité papillon des gaz - Google Patents

Procédé pour produire une unité papillon des gaz Download PDF

Info

Publication number
WO2007128669A2
WO2007128669A2 PCT/EP2007/053887 EP2007053887W WO2007128669A2 WO 2007128669 A2 WO2007128669 A2 WO 2007128669A2 EP 2007053887 W EP2007053887 W EP 2007053887W WO 2007128669 A2 WO2007128669 A2 WO 2007128669A2
Authority
WO
WIPO (PCT)
Prior art keywords
sealing element
flap
plastic material
injection
throttle 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
Application number
PCT/EP2007/053887
Other languages
German (de)
English (en)
Other versions
WO2007128669A3 (fr
Inventor
Wolfgang Ochs
Wolf-Ingo Ratzel
Elmar Huber
Karl-Heinrich Weis
Jochen Kaesser
Simon Obergfaell
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2007128669A2 publication Critical patent/WO2007128669A2/fr
Publication of WO2007128669A3 publication Critical patent/WO2007128669A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B29C45/0017—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor moulding interconnected elements which are movable with respect to one another, e.g. chains or hinges
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1005—Details of the flap
    • F02D9/101—Special flap shapes, ribs, bores or the like
    • F02D9/1015—Details of the edge of the flap, e.g. for lowering flow noise or improving flow sealing in closed flap position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/107—Manufacturing or mounting details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1075—Materials, e.g. composites
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • B29C2045/1673—Making multilayered or multicoloured articles with an insert injecting the first layer, then feeding the insert, then injecting the second layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • B29L2031/7506—Valves

Definitions

  • WO 2005/040652 Al relates to a throttle body.
  • the throttle body has a tubular housing in which a throttle valve is mounted perpendicular to the flow direction in the tubular housing on a perpendicular to the flow direction in the tubular housing arranged throttle shaft.
  • the throttle shaft is rotatably mounted on one side on a bearing adjacent to the actuator arranged bearing.
  • the throttle flap has on its outer edge a circumferential seal, which has a gap only in the region of the bearing.
  • DE 102 46 726 A1 relates to a method for producing a throttle flap in a continuous throttle body.
  • a circumferential, annular groove is incorporated in the throttle body.
  • a first punch and a second punch are retracted into the throttle body on both sides, which are designed to be complementary to one another and form a cylindrical first cavity in the retracted state in the region of an annular groove. This has a circumferential projection to the middle of the throttle valve.
  • a molten first plastic is introduced laterally through at least one opening of the throttle body in the first cavity and there brought to the curing and formation of a plastic insert.
  • a fourth step the first and the second punch are removed from the throttle body and introduced a throttle shaft perpendicular to the longitudinal axis of the throttle body via openings through the throttle body and the plastic insert.
  • the throttle shaft is supported in the apertures by a first hollow plug and a second hollow plug, respectively, with which the apertures of the throttle body are closed to complement the plastic insert.
  • a third punch and a fourth punch are inserted in the drosseklappenstutzen, which Chen them both and the formed, extending to the center of the throttle body circumferential projection of the plastic insert one, the throttle valve shaft comprehensive, form a second cavity in the form of a throttle valve.
  • a molten second plastic is introduced through the third punch into the second cavity and there brought to the curing and formation of the throttle valve.
  • the third punch and the fourth punch are removed from the throttle body.
  • DE 102 40 624 A1 relates to a method for completing a throttle valve stem.
  • an elastic compensation element which is formed in a triangular shape and has a projection on its outer side, is fixed around a throttle shaft.
  • a first punch and a second punch are retracted from both sides into the throttle body until they abut each other on the projection and form between them and the respective projection a cavity comprising the throttle valve shaft.
  • a molten plastic is introduced through the first punch or the second punch in the cavity, wherein the at least one elastic compensation element is pressed with its projection against the inner wall of the throttle body and the first punch and the second punch after curing of the plastic removed in a fourth step from the throttle body.
  • the present invention has for its object to provide a throttle valve unit, which has a significantly increased temperature stability.
  • a prefabricated sealing element with appropriate temperature-resistant properties during injection molding of the movable part of the throttle valve unit, ie the throttle valve, made of plastic in the housing form-fitting and / or non-positively and geometrically fix.
  • This prefabricated sealing element is preferably a ring-shaped, preferably made of metallic material, throttle edge.
  • the additional prefabricated sealing element takes over the formation of the low gap required for small amounts of leakage air at the throttle valve unit. This required narrow gap is on the order of a few 1 OOtel millimeters between the flap edge of the throttle valve shaft movably mounted in the throttle body and the inner surface of the housing bore, ie the air passage bore in the throttle body of the throttle body.
  • the prefabricated sealing element which is preferably designed as an overstretched, open ring, elastically engages the inner contour of the throttle body during the injection process. If the prefabricated sealing element is anchored in the plastic of the throttle flap, the prefabricated sealing element disappears during cooling of the injected throttle valve unit from the surface of the housing bore in the throttle housing and forms the required gap.
  • This process can preferably be influenced by the fact that the prefabricated sealing element has a special geometric structure and is fixed before and during the injection process via a sensitive adaptable elastic deformation, which can be done for example by biasing via biasing elements in the injection mold.
  • the preferably made of metallic material prefabricated sealing element in the form of a flap edge is deformed as a closed ring, similar to the principle of deformation of a plate spring, before and during the injection molding.
  • the air-carrying housing part of the throttle valve unit is injection-molded from a plastic 1 in a station 1 of a corresponding injection molding tool.
  • the pre-molded in station 1 from a plastic 1 air guide part receives in a second station of the same injection molding tool or alternatively in a second injection mold in Mehrkomponentenspritzg tellver- drive a movable flap of a plastic 2 injected.
  • an elastic ring is preferably used outside this injection molding tool, which constitutes the abovementioned prefabricated sealing element. This is preferred, for reasons of temperature resistance, made of a metallic material.
  • This elastic ring gives the edge of the throttle valve, which is movably injected in the air guide part of the throttle valve unit.
  • the material This elastic ring is compared to the material of the flap, ie the plastic 2, much more temperature resistant.
  • the elastic ring is provided on its inner edge with entanglements, which are filled during injection molding of the flap of the plastic 2 and thereby a stable anchorage between the plastic 2, from which the throttle valve is injected and the elastic see ring, ie the prefabricated sealing element, Gives shape and force fit in the circumferential direction and in the radial direction.
  • the ring thus remains elastically biased and is in terms of its thermal expansion or contraction, largely coupled to the thermal behavior of the plastic from which the movable flap is made.
  • the sealing element which is preferably prefabricated as a ring, can be inserted in the tool area for shaping the flap. Thereafter, the previously injection-molded in station 1 from a plastic 1 air guide part, d. H. the housing of the throttle body, placed in the tool, which can also be done in reverse order.
  • the elastically preloadable ring i. H. the prefabricated sealing element, by abutment against the inner contour of the air passage bore of the
  • Air guide parts of the throttle valve unit aligned or applied. Adjustment devices on the injection molding tool can be used to adapt the pre-tensioning or tensioning of the prefabricated sealing element to adjust the later-required gap width between the edge of the movable throttle flap part and the air passage bore in the housing.
  • the prefabricated sealing element may preferably be provided with a surface coating prior to its introduction into the injection mold, with which the temperature resistance of the prefabricated sealing element can be improved.
  • the prefabricated sealing element can also be made of the material of the throttle valve, d. H. be made of the plastic 2. To increase the temperature resistance of the plastic 2 is modified according to its use, for example, subjected to a cross-linking in this case.
  • FIG. 1 shows a pre-sprayed housing part made of a first plastic material
  • FIG. 2a shows a view of a flap part from the direction of flow with a curved flap surface
  • FIG. 2b shows a view of a flap part from the rear side with a ribbed flap surface
  • FIG. 3 shows the housing part with movable throttle valve part obtained in separate cavities after passing through a first injection station and a second injection station and containing the overmolded sealing element as the edge of the flap part;
  • FIG. 4 shows the prefabricated sealing element, which is located on the movable throttle flap part produced from the plastic 2, FIG.
  • Figure 5 is a perspective view of the prefabricated sealing element
  • Figure 6 is a broken view of the throttle body with ribbed back and circumferentially injected, prefabricated sealing element.
  • FIG. 1 shows a pre-sprayed housing part made of a first plastic material.
  • a housing part 10 of a throttle valve unit which is used in the intake tract of an internal combustion engine, is injection-molded as an injection-molded component from a first plastic material.
  • the first plastic material may be both semi-crystalline thermoplastics and amorphous high-temperature thermoplastics having high melting temperatures and optionally high degrees of crystallization, as well as excellent heat distortion, oil and fuel resistances.
  • the usable amorphous high-temperature thermoplastics have a very high glass transition temperature, which is at least 30K above the continuous operating temperature of the throttle valve unit.
  • the first plastic material also has low coefficients of friction and low wear rates.
  • the housing part 10 comprises a flange 11, on which flange fasteners 12 are provided corresponding to the available installation space.
  • the housing part 10 defines a Gas telleriesöffhung 13, which is formed in a wall thickness 16. In the wall of the Gas thoroughly facilitatesöffhung 13 are opposing openings 14 for receiving and storage with or without sleeves of a in a further process step fashionenden flap part 17 is provided.
  • the housing part 10 is manufactured as a pre-molded part in a first injection station. Injection points, via which the first plastic material is introduced into the first injection station, are indicated by reference numeral 15. Although only two injection points 15 are shown in FIG. 1, a plurality, for example up to eight injection points 15, can be provided, via which the first plastic material is introduced into the first cavity.
  • FIG. 2a shows a view of a flap part, which is shown from the perspective of the direction of flow and has an arched flap surface.
  • the flap part 17 shown in Figure 2a has a convex curved flap surface, to which a first flap shaft part 19 and a second flap shaft part 20 are molded.
  • the flap surface 18 is provided with a sealing edge 23.
  • the flap shaft part 17 with integral first flap shaft part 19 and molded second flap shaft part 20 is made of a second plastic material, which may also be a semi-crystalline thermoplastic or amorphous high-temperature thermoplastics with high melting temperatures and optionally high degrees of crystallinity.
  • the second plastic material has a high heat resistance, oil and fuel resistance and is also distinguished from the material of the housing part 10 representing the pre-molded part 41 by a low friction coefficient and a low wear rate.
  • the flap part 17 can also be made of the same plastic material as the preform 41 produced in the first cavity.
  • the second plastic material injected into the pre-sprayed housing part (preform 41), from which the flap part 17, which is preferably curved, can be either a semi-crystalline thermoplastic or amorphous high-temperature thermoplastics with a low melting temperature compared to the melting temperature of the first plastic material of the first Pre-sprayed housing part 41 act or it can be used under consideration procedural conditions as a second plastic material, a semi-crystalline thermoplastic or amorphous high-temperature thermoplastic. This can then have a higher melting temperature, compared to the melting temperature of the first plastic material, from which the pre-sprayed housing part (pre-molded part 41) is made.
  • FIG. 2b shows a view of the flap part according to FIG. 2a from its rear side, with one of the ribs facing away from the upstream side on the flap rear side.
  • the flap part 17, is provided on its rear side with a ribbing 21.
  • the ribbing 21 extends approximately in the shape of a star at the rear side of the flap surface 18 preferably from a central injection point 24, via which the second plastic material is injected into a second cavity of a second injection station.
  • the first flap shaft part 19 and the extended second flap shaft part 20 extend on the drive side of the flap part 17.
  • the illustration in accordance with FIG. 2b shows the rear side of the sealing edge 23 surrounding the flap surface 18.
  • FIG. 3 shows the housing part obtained in separate cavities after passing through a first injection station and a second injection station, with a movable flap part injected into the pre-molded part of the housing part.
  • a two-component injection-molding unit 60 according to the illustration in FIG. 3 comprises in its foot region the flange 11 which, in accordance with the available installation space and the hole pattern, can be connected to further intake tract components of an internal combustion engine.
  • the flap part 17 rotated in the closed position closes the gas passage opening 13 to form a flap gap 61 between the sealing border 23 of the flap surface 18 of the flap part 17 and the inner wall 53 of the gas passage opening 13 of the housing part 10.
  • the housing part 10 of the Represents throttle valve unit is made of a first plastic material and is produced within a first injection stage in a first injection station, the flap part 17, which is injection molded in the second cavity 42 of the second injection station 40, made of the second plastic.
  • FIG. 4 The illustration of Figure 4 is a movable throttle body, d. H. to remove the throttle valve, with prefabricated sealing element injected into the second plastic material.
  • FIG. 4 makes reference to FIG. 2b, in which the flap part 17 is shown from the rear side.
  • the sealing edge designated by reference numeral 23 in FIG. 2b is formed by a prefabricated sealing element 70.
  • the prefabricated sealing element 70 is preferably designed as a sealing ring made of a metallic material and has on its the flap surface 18 of the flap member 17 assigning inside a number of radial projections 76.
  • the radial projections 76 are attached to the inner peripheral surface of the annular prefabricated sealing element 70 preferably equidistant from each other. 4 shows that the radial projections 76 are encapsulated by the second plastic material, from which the flap part 17 is encapsulated in a second injection mold or in a second cavity of an injection mold, indicated by reference numeral 86.
  • the radial projections 76 on the inside of the prefabricated, Preferably annular sealing element 70 are in the second plastic material as entangled elements that are injected during injection molding of the flap member 17 in this and thereby anchored in the radial direction and in the circumferential direction in the plastic material of the flap part 17. Due to the injection 86 of the radial projections 76 - as shown in Figure 4 - the prefabricated sealing element 70 remains elastically biased and is largely coupled according to its geometric design and material-specific interpretation of the expansion behavior in particular with respect to the thermal expansion of the second plastic material from which the flap part 17 of the throttle valve unit is preferably made.
  • the illustrated in Figure 4, preferably annular trained, prefabricated sealing element 70 is used prior to the injection process, ie before the production of the movable flap member 17 of the second plastic material outside the tool, ie outside the injection molding machine in the pre-molded 41.
  • the insertion of the prefabricated sealing element 70 in the Pre-molded part 41, ie the housing part 10 can also be done only in the injection mold itself.
  • the second plastic material is injected into the cavity, so that the encapsulation 86 between the radial projections 76 and the plastic material of the flap surface 18 of the movably arranged flap part 17 form.
  • the prefabricated sealing element 70 thus remains elastically biased and is coupled with respect to its thermal expansion or contraction with temperature changes with the second plastic material.
  • web-shaped ribs 21 are located on the rear side of the flap surface 18 of the flap part 17 opposite the upstream side, centered on an injection point 24, at which the second plastic material is preferably injected into the cavity provided for the second injection molding process , run.
  • the flap surface 18 of the movable flap member 17 is molded onto the first flap shaft 19 and the second flap shaft 20, wherein the first and the second flap shaft 19 and 20 are formed during the second injection molding and the storage of the movably arranged for Gas miceriesöffhung 13 flap member 17 in the housing part 10 of the throttle valve unit represent. This storage can be done for reasons of friction and wear with - preferably metallic - intermediate bushings.
  • Figure 5 shows a perspective view of the prefabricated sealing element in an enlarged view, which is shown here as a slotted embodiment variant.
  • the prefabricated sealing element 70 has a substantially annular shape.
  • a ring break 78 which gives the prefabricated sealing element 70, the required elasticity in the radial direction.
  • the individual radial projections 76 which are formed in the context of injection 86 (see illustration according to FIG. 4) and the radial anchors between the flap surface 18 injection-molded from the second plastic material and the prefabricated sealing element 70 after encapsulation 86 are formed on the inner side facing the flap surface 18 form.
  • Opposite the ring interruption 78 is an arc 80, which (see illustration according to FIG.
  • the ring interruption 78 lies (as shown in FIG 4) in the area in which the opposite flap shaft, starting from the flap surface 18 of the movably designed flap part 17 extends.
  • the radial projections 76 are formed at their, the flap surface 18 facing ends with widened ends 82, so that form when forming the injection 86 in the radial direction undercuts, resulting in a stable , temperature-resistant anchoring between the prefabricated sealing element 70 and the second plastic material, from which the movable flap portion 17 is injection-molded adjusts.
  • the sealing edge 23 shown in Figure 3 which is formed there by the second plastic material of the flap part 17, formed by the outer edge 72 of the prefabricated sealing element 70, which is preferably made of a temperature-resistant, metallic material.
  • the sectional view according to FIG. 6 shows a partially cut-open, movable gasket part recessed in the gas passage opening, as shown in FIG. 4.
  • the movable flap part 17 is accommodated within a gas passage opening 13 in the housing part 10 or preform 41, in a rotatable manner.
  • the prefabricated sealing element 70 rests with its sealing edge 73, forming a flap gap 61, against the inner wall 53 of the housing part 10 or the pre-molded part 41.
  • the flap surface 18 of the movable flap part 17 is slightly curved in the direction of flow 22.
  • Sectional view according to FIG. 6 can also be seen that the encapsulation 86 of the radial projections 76 of the prefabricated sealing element 70 has a thickness 88.
  • the ribs 21 are located on the side of the flap surface 18 facing away from the direction of flow 22. Partially shown is the first flap shaft 19, with which the movable flap part is rotatably received in the housing part 10 and in the pre-molded part 41.
  • the overmolded regions 74 extend partially across the width of the prefabricated sealing element 70 in order to avoid Gas jostrittsmöglickeiten along the outer edge of the prefabricated sealing element 70.
  • the overmolded regions 74 may not extend to the outermost edge of the prefabricated sealing element 70, since otherwise the outer edge of the prefabricated sealing element 70 does not constitute a flap gap 61.
  • the ring connected by injection 86 with the second plastic material of the movable flap part 17 in FIG. 6 can be provided with a corresponding surface coating to further increase the temperature or flame resistance, preferably before its insertion into the injection mold.
  • the prefabricated sealing element 70 instead of a metallic material, from the material, with which the second plastic material for producing the movable flap member 17 is injection-molded during the injection molding process.
  • this is preferably crosslinked, so that a sufficient temperature resistance is given, can be effectively prevented by the Anschmelzept on the flap edge or on the flap surface in previously used made of plastic injection molding material throttle body units.
  • Injection 86 is understood below that the outer edge 72 of the prefabricated sealing element 70 remains partially free of the second plastic material.

Landscapes

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

Abstract

L'invention concerne un procédé servant à produire une unité papillon des gaz, ainsi qu'une unité papillon des gaz correspondante. L'unité papillon des gaz selon l'invention comprend une partie boîtier (10, 53), ainsi qu'une partie papillon (17, 18) mobile par rapport à la partie boîtier. La partie boîtier (10, 53) de l'unité papillon des gaz est moulée par injection d'une première matière plastique dans une première cavité d'un moule à injection. Un élément d'étanchéité préfabriqué (70) est introduit dans la partie boîtier (10, 53) auparavant moulée par injection de la première matière plastique. Lors du moulage de la partie papillon mobile (17, 18) de l'unité papillon des gaz par injection d'une deuxième matière plastique à l'intérieur de l'ébauche (41) dans le moule, une injection partielle (86) est réalisée entre l'élément d'étanchéité préfabriqué (70) et la deuxième matière plastique.
PCT/EP2007/053887 2006-05-04 2007-04-20 Procédé pour produire une unité papillon des gaz Ceased WO2007128669A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006020718.1 2006-05-04
DE200610020718 DE102006020718A1 (de) 2006-05-04 2006-05-04 Verfahren zur Herstellung einer Drosselklappeneinheit

Publications (2)

Publication Number Publication Date
WO2007128669A2 true WO2007128669A2 (fr) 2007-11-15
WO2007128669A3 WO2007128669A3 (fr) 2008-01-10

Family

ID=38226617

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/053887 Ceased WO2007128669A2 (fr) 2006-05-04 2007-04-20 Procédé pour produire une unité papillon des gaz

Country Status (2)

Country Link
DE (1) DE102006020718A1 (fr)
WO (1) WO2007128669A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108443515A (zh) * 2018-04-24 2018-08-24 天津瑞实联精密铸造股份有限公司 一种可提高蝶阀阀板可靠性的加强筋结构

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011077920A1 (de) * 2011-06-21 2012-12-27 Röchling Automotive AG & Co. KG Luftklappe mit angespritzten Lagerstellen sowie Luftklappenvorrichtung mit derartiger Luftklappe
DE102011107794A1 (de) 2011-07-15 2013-01-17 Fey Lamellenringe Gmbh & Co. Kg Drosselklappeneinrichtung
FR2990243B1 (fr) * 2012-05-03 2015-08-21 Valeo Sys Controle Moteur Sas Vanne de controle moteur dotee d'un volet optimise

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423370A1 (de) * 1994-07-04 1996-01-11 Bayerische Motoren Werke Ag Drosselklappen-Stutzen für eine Brennkraftmaschine
JPH10252507A (ja) * 1997-03-17 1998-09-22 Nissan Motor Co Ltd スロットルバルブおよびスロットルボディならびにスロットル装置
DE19848440A1 (de) * 1998-10-21 2000-04-27 Mann & Hummel Filter Klappenmechanismus
DE10240624A1 (de) * 2002-09-03 2004-03-11 Siemens Ag Verfahren zum Abschließen eines Drosselklappenstutzens
DE10329484A1 (de) * 2003-07-01 2005-01-27 Robert Bosch Gmbh Verfahren zur Herstellung einer Drosselklappeneinheit im Zweikomponentenspritz-Giessverfahren
JP2005163546A (ja) * 2003-11-28 2005-06-23 Aisan Ind Co Ltd スロットルボデー及びその製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108443515A (zh) * 2018-04-24 2018-08-24 天津瑞实联精密铸造股份有限公司 一种可提高蝶阀阀板可靠性的加强筋结构

Also Published As

Publication number Publication date
WO2007128669A3 (fr) 2008-01-10
DE102006020718A1 (de) 2007-11-08

Similar Documents

Publication Publication Date Title
EP1789673B1 (fr) Soupape d'injection de carburant
WO2005002823A2 (fr) Procede pour produire une unite papillon selon un procede de moulage par injection a deux composants
EP3459706B1 (fr) Roue cylindrique destinée à être utilisée dans un engrenage cylindrique, engrenage pour un engrenage cylindrique, engrenage cylindrique doté d'un tel engrenage ainsi que procédé de fabrication d'une roue cylindrique
DE10226594A1 (de) Regelklappe mit eingespritzter Welle
DE10105526B4 (de) Verfahren zur Herstellung einer Klappenanordnung
DE102007013937A1 (de) Drosselklappengehäuse sowie Verfahren zur Herstellung des Drosselklappengehäuses
EP1394402B1 (fr) Connecteur pour conduites de transport de fluide
WO2007128669A2 (fr) Procédé pour produire une unité papillon des gaz
DE102022001807B4 (de) Wälzlager, Wälzlageranordnung, Werkzeug und Verfahren
WO1995006809A1 (fr) Dispositif d'etranglement
DE19717347C1 (de) Verfahren zum Herstellen einer Schaltklappe
DE102004043427B4 (de) Verfahren zur Herstellung einer Drosselklappeneinheit mit verschleißarmer Drosselklappenlagerung
DE102008043931A1 (de) Luftströmungs-Steuergerät und Herstellungsverfahren für dieses
WO2002038939A2 (fr) Soupape d'injection de carburant et procede de production d'aiguilles de soupape ou de corps de fermeture de soupape pour soupapes d'injection de carburant
DE2849779C2 (de) Drosselklappenventil und Verfahren zu seiner Herstellung
DE602004012541T2 (de) Methode zur Herstellung eines Brennstoffeinspritzventils für eine Brennkraftmaschine und Einspritzventil hergestellt gemäss dieser Methode
DE60000806T2 (de) Kunststoff-Drosselklappenstutzen
EP2428665B1 (fr) Arbre de commande et procédé de fabrication d'un arbre de commande
DE102014220278A1 (de) Steuerventil für ein Nockenwellenverstellsystem und Verfahren zu dessen Herstellung
DE19781531B4 (de) Drosselkörper und Herstellungsverfahren dafür
DE102019116034B4 (de) Kugelgelenk und Verfahren zu dessen Herstellung
DE4222020C1 (de) Kunststoffsaugrohr
DE112013000957T5 (de) Kraftstoffeinspritzventil
EP1991406B1 (fr) Procede de moulage par injection pour la fabrication d'un element ayant au moins deux composants fonctionnels realises separement l'un de l'autre et deplaçables l'un par rapport a l'autre
WO2005070646A1 (fr) Procede pour produire une unite papillon presentant une etancheite amelioree

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07728346

Country of ref document: EP

Kind code of ref document: A2

122 Ep: pct application non-entry in european phase

Ref document number: 07728346

Country of ref document: EP

Kind code of ref document: A2