EP1299671A2 - Rotationsgeschweisster fluidverbinder mit einem kunststoffummantelten metallrohr - Google Patents

Rotationsgeschweisster fluidverbinder mit einem kunststoffummantelten metallrohr

Info

Publication number
EP1299671A2
EP1299671A2 EP20010950809 EP01950809A EP1299671A2 EP 1299671 A2 EP1299671 A2 EP 1299671A2 EP 20010950809 EP20010950809 EP 20010950809 EP 01950809 A EP01950809 A EP 01950809A EP 1299671 A2 EP1299671 A2 EP 1299671A2
Authority
EP
European Patent Office
Prior art keywords
connector body
metal tube
plastic
opening
passage
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.)
Withdrawn
Application number
EP20010950809
Other languages
English (en)
French (fr)
Inventor
David C. Stieler
Christopher T. Maxwell
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.)
ITT Manufacturing Enterprises LLC
Original Assignee
ITT Manufacturing Enterprises LLC
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 ITT Manufacturing Enterprises LLC filed Critical ITT Manufacturing Enterprises LLC
Publication of EP1299671A2 publication Critical patent/EP1299671A2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/14—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain
    • F16L37/142—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially
    • F16L37/144—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially the securing element being U-shaped
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0672—Spin welding
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1286—Stepped joint cross-sections comprising at least one bevelled joint-segment
    • B29C66/12861—Stepped joint cross-sections comprising at least one bevelled joint-segment comprising at least two bevelled joint-segments
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1288—Stepped joint cross-sections comprising at least one monotone curved joint-segment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52296—Joining tubular articles involving the use of a socket said socket comprising sealing elements, e.g. gaskets
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52297—Joining tubular articles involving the use of a socket said socket comprising slip-off prevention means
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52298—Joining tubular articles involving the use of a socket said socket being composed by several elements
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29L2009/00—Layered products
    • B29L2009/003—Layered products comprising a metal layer

Definitions

  • the present invention relates to fluid connectors and, more particularly, to the sealing interconnection of such connectors with tubing end forms and, more particularly still, the use of spin welding to effect such interconnection.
  • the permeation problem has been addressed in part through the development of co-extruded multi-layer plastic tube containing two or more discrete layers of different types or formulations of plastic, one of which is specifically designed to provide an effective permeation layer, blocking the escape of hydrocarbons from the system.
  • the most successful multi- layer tubing employs a relatively thick outer layer composed of a material resistant to the exterior environment.
  • the innermost layer is thinner and is composed of a material which is chosen for its ability to block defiision of materials, such as hydrocarbons, alcohols and other materials present in fuel blends, to the outer layer and may have a degree of electrical conductivity sufficient to dissipate static charges generated by the flow of fluid therein.
  • the use of one or more intermediate layers for bonding the inner and outer layers has been proposed.
  • a related problem stems from dual aspects of commercially available quick connect devices, to wit: high volume and low sale price frequently necessitating the use of inexpensive, somewhat pliable materials, and complex contours of extremely small inter-fitting components. These aspects collectively increase the likelihood of misassembly.
  • High volume production techniques including automated assembly tends to aggravate the problem wherein misassembly or impermissible dimensional variations of the components is difficult to detect.
  • Excessive dimensional tolerance stack-up can result in low pull-apart characteristics between the barbed stem and the plastic tube and produce leakage. Misassembly, such as failure to include a 0-ring, can also result in leakage.
  • the present invention provides a simple and inexpensive yet mechanically and environmentally robust connection between a tube tube end and a connector body as well as an assembly that overcomes the shortcomings of the prior art.
  • the present fluid connector is designed for spin welding connection with a plastic-coated, metal tube.
  • the connector includes a body having a through passage which interconnects a first opening which is adapted for receiving a mating conduit and a second opening which is adapted for receiving the tube.
  • the end portion of the through passage at second opening defines a surface which sealingly engages the outer surface of the tube.
  • this invention is a fluid connector for spin welding connection with a metal tube having a plastic outer layer affixed thereon.
  • the connector includes a body defining a through passage interconnecting a first opening adapted for receiving a mating conduit, and a second opening adapted for receiving the tube.
  • a fluid coupling in another aspect, includes a connector body defining a through passage interconnecting a first opening adapted for receiving a conduit and an opposed second opening.
  • An inner surface is formed in the body disposed about the second opening; the inner surface defining an inner welding surface.
  • a metal tube end has an outer plastic layer affixed thereto. The outer plastic layer is spin welded to the inner welding surface on the connector body.
  • the second opening defines an annular inner surface at one end of the through passage.
  • a flange is spaced from the second opening in the through passage and extends radially inward from the connector body into the through passage. The flange is engagable by a leading end of the tube.
  • the spin welded fluid connector of the present invention provides a secure, completely sealed connection between a metal tube end and a plastic connector body by using a spin welding process wherein a plastic outer layer affixed on the metal tube is spin welded to an inner surface of the plastic connector body.
  • Figure 1 is a cross-sectional view of a spin welded fluid coupling of the present invention
  • Figure 2 is a longitudinal, cross-sectional view of a connector body shown in Figure 1
  • Figure 3 is an exploded, cross-sectional view on an enlarged scale, of the fluid coupling of Figure 1 prior to spin welding of the tube end into the connector body
  • Figure 4 is a cross-sectional view on a greatly enlarged scale of the spin weld connection of the tube end to the connecter body
  • Figure 5 is a cross-sectional view on a greatly enlarged scale showing the spin weld connection of the tube end to a modified aspect of the connector body.
  • the preferred aspect of the present invention is illustrated in an application comprising a quick connector assembly or fluid coupling 40 in which a connector 42 serves to interconnect a metal tubing member end 44 and a plastic and metal tube end 46 to effect a fluidic circuit, preferably for automotive applications.
  • the connector 42 is an assembly of a hard shell plastic connector body 48 formed of glass filled nylon or other suitable material in a generally tubular form having a stepped bore 50 extending therethrough from a first opening 52 to a second opening 54.
  • the metal tubing member end 44 extends through the first opening 52 into the bore 50 as shown in Figure 1.
  • An upset bead 56 axially off set from a leading end 58 of the tube 44, releasable engages a retainer 60 which is in assembly with the body 48.
  • the outer peripheral surface of the metal tube 44 is sealingly engaged with the body 48 within the bore 50 by first and second resilient O-rings 62 and 64 separated by a spacer 66 and held in the illustrated position by a second spacer 68 and a top hat 70.
  • the leading end 58 of the metal tube end 44 can be inserted within the bore 50 and mechanically engage the connector 42 without the use of tools or specialized assembly equipment.
  • the metal tube end 44 can be released from the connector 42 by resiliently displacing the retainer 60.
  • a flange 77 is integrally formed with and extends axially leftwardly from the main portion of the connector body 48 in the orientation of Figure 2.
  • the flange 76 terminates at a leading nose 80.
  • the flange 76 is circular and concentric with the second opening 54 and defines an interior bore 79.
  • the plastic and metal tube end 46 is preferably formed of a metal tube or conduit having a metal sidewall 81 which is covered by a plastic material outer layer 82.
  • the plastic outer layer 82 is securely affixed to the metal layer 81 by means of co-extrusion and other well-known techniques.
  • One particular plastic and metal tube end 46 which is ideally suited for use in the present invention is a nylon 12-carbon steel tube end manufactured and sold by the assignee of the present invention under the trade name "NYCLAD. " It will be understood that other types of metal as well as other plastic materials may be employed to practice the present invention.
  • the plastic outer layer 82 of the tube end 46 has been illustrated as being a mono-wall layer, it will be understood that a multi-layer construction of different plastic layers affixedly joined to each other and to the metal tube end 81 or at least two plastic layers with an intermediate conductive material layer may also be employed for the tube end 46.
  • the innermost corner of the leading edge 80 of the connector body 48 may also be beveled or angled to provide a lead-in feature to enhance the insertion of the tube end 46 into the endmost bore 79 on the connector body 48.
  • tube end 46 is pre-positioned concentrically with the second opening 54 and spaced slightly axially therefrom.
  • the nominal outer diameter of the tube end 46 is slightly greater than the inner diameter of the leading nose 80 to ensure that as the tube end 46 contacts the connector body 48, a leading edge 96 thereof will first contact the leading nose 80 to preposition and self-center the two.
  • the self-centering feature also eliminates the need for guide mandrels during spin welding.
  • An interior flange 76 is formed in the connector body 48 between the bores 72 and 79.
  • the flange 76 has an annular form with a central aperture 78.
  • the aperture 78 is in fluid flow communication with the stepped bore 50 and the second opening 54.
  • the flange 76 acts as an insertion limit for the plastic and metal tube end 46 into the through passage extending inward from the second opening 54.
  • the radial extent of the flange 76 from the adjoining sidewall of the connector body 48 has a dimension substantially equal to the total wall thickness of the plastic and metal tube end 46.
  • the tube end 46 As the tube end 46 is axially pressed into engagement with the connector body 48, the tube end 46 is mounted rigidly and the connector body 48 is mounted for relative rotation therewith in a suitable press, for example. Once a suitable speed differential is established, the tube end 46 and the connector body 48 are axially pressed together as illustrated by the arrow 98 until the leading edge 96 of the tube end 46 contacts the flange 76 at which time all relative axial displacement and rotational displacement ceases.
  • Figure 5 depicts a modification of the quick connector body 48 according to another aspect of the present invention.
  • the end bore portion 79' extending inward from the second opening 54 instead of having a constant diameter, smooth wall configuration, as shown in Figure 2, is formed with a first converging tapered portion 84 extending from the flange 76 which transitions into a more abrupt, steeper angled, second tapered portion 86 terminating in the second opening 54 at the leading nose 80.
  • the steeper angle of the second tapered portion 86 creates greater friction at the leading end 96 of the tube end 46 resulting in higher amounts of heat and faster melting of the end portion of the plastic outer layer 82 of the tube end 46 and the end of the connector body 48.
  • first and second tapered portions 84 and 86 on the connector body 48 provide weld zones which insure a complete, 360°, annular seal between the plastic outer layer 82 of the tube end 46 and the connector body 48.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
EP20010950809 2000-06-30 2001-06-29 Rotationsgeschweisster fluidverbinder mit einem kunststoffummantelten metallrohr Withdrawn EP1299671A2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US607296 1996-02-26
US60729600A 2000-06-30 2000-06-30
PCT/US2001/021044 WO2002002978A2 (en) 2000-06-30 2001-06-29 Spin welded fluid connector using plastic coated metal tube

Publications (1)

Publication Number Publication Date
EP1299671A2 true EP1299671A2 (de) 2003-04-09

Family

ID=24431661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010950809 Withdrawn EP1299671A2 (de) 2000-06-30 2001-06-29 Rotationsgeschweisster fluidverbinder mit einem kunststoffummantelten metallrohr

Country Status (6)

Country Link
EP (1) EP1299671A2 (de)
JP (1) JP2004502115A (de)
KR (1) KR20030013476A (de)
AU (1) AU2001271768A1 (de)
BR (1) BR0112088A (de)
WO (1) WO2002002978A2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6832785B1 (en) 2003-07-21 2004-12-21 Itt Manufacturing Enterprises, Inc. Spin welded fluid coupling
AU2003255109A1 (en) * 2003-08-11 2005-02-25 Wei Qi A connecting member of pipeline
US7263975B2 (en) 2005-01-25 2007-09-04 Dana Corporation Plastic coated metal fuel rail
US20060162144A1 (en) * 2005-01-25 2006-07-27 Stieler David C Method of coupling fuel system components
DE502006008159D1 (de) * 2005-03-24 2010-12-09 Ems Chemie Ag Verwendung eines Leitungssystems für Fluide mit flüchtigen Bestandteilen
KR20090025185A (ko) * 2006-06-01 2009-03-10 루크 라멜렌 운트 쿠플룽스바우베타일리궁스 카게 라인, 특히 수압 또는 공기압 라인
GB0723646D0 (en) * 2007-12-03 2008-01-16 Guest John Int Ltd Tube couplings
DE202010003186U1 (de) * 2010-03-04 2011-07-25 DüRR DENTAL AG Kupplungsteil für ein fluidisches Schnellverbindungssystem
DE102016118578A1 (de) * 2016-09-30 2018-04-05 Veritas Ag Fluidverbinder
IT201700096259A1 (it) * 2017-08-25 2019-02-25 Sumitomo Riko Co Ltd Giunzione per tubi di un autoveicolo

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US2933428A (en) 1956-03-21 1960-04-19 Mueller Co Plastic welding
US3980248A (en) 1972-06-07 1976-09-14 Manji Minoshima Manufacturing method for thermoplastics
NL8901654A (nl) 1989-06-29 1991-01-16 Cordis Europ Werkwijze voor het vervaardigen van catheter, en met deze werkwijze vervaardigde catheter.
US5542712A (en) 1991-12-18 1996-08-06 Itt Corporation Quick connector housing with elongated barb design
US5201549A (en) * 1992-01-17 1993-04-13 Senior Engineering Investments, B.V. Thermal isolation coupling system
US5275443A (en) * 1992-09-15 1994-01-04 Itt Corporation Sliding collar quick connect
US5931509A (en) * 1996-11-19 1999-08-03 Proprietary Technology, Inc. Connection verification and secondary latch device
US6199916B1 (en) * 1997-05-15 2001-03-13 Itt Manufacturing Enterprises, Inc. Spin welded fluid connector

Non-Patent Citations (1)

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Title
See references of WO0202978A2 *

Also Published As

Publication number Publication date
JP2004502115A (ja) 2004-01-22
BR0112088A (pt) 2004-02-10
AU2001271768A1 (en) 2002-01-14
WO2002002978A3 (en) 2002-03-28
KR20030013476A (ko) 2003-02-14
WO2002002978A2 (en) 2002-01-10

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