EP1483522A1 - Raccord avec douille coulissante et machoires de serrage - Google Patents

Raccord avec douille coulissante et machoires de serrage

Info

Publication number
EP1483522A1
EP1483522A1 EP03708161A EP03708161A EP1483522A1 EP 1483522 A1 EP1483522 A1 EP 1483522A1 EP 03708161 A EP03708161 A EP 03708161A EP 03708161 A EP03708161 A EP 03708161A EP 1483522 A1 EP1483522 A1 EP 1483522A1
Authority
EP
European Patent Office
Prior art keywords
collets
connection coupling
connection
sliding sleeve
sleeve
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
EP03708161A
Other languages
German (de)
English (en)
Inventor
Erwin Weh
Wolfgang Weh
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7968446&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1483522(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP1483522A1 publication Critical patent/EP1483522A1/fr
Ceased 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
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
    • F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
    • F16L37/36—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied with two lift valves being actuated to initiate the flow through the coupling after the two coupling parts are locked against withdrawal
    • 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
    • F16L37/121—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 using freely rocking hooks
    • 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
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • 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
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/037—Quick connecting means, e.g. couplings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each
    • Y10T137/87941—Each valve and/or closure operated by coupling motion
    • Y10T137/87949—Linear motion of flow path sections operates both
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each
    • Y10T137/87941—Each valve and/or closure operated by coupling motion
    • Y10T137/87949—Linear motion of flow path sections operates both
    • Y10T137/87957—Valves actuate each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each
    • Y10T137/87965—Valve- or closure-operated by coupling motion

Definitions

  • Lie invention relates to a connection coupling for the transmission of gaseous and / or liquid fluids, in particular for filling vehicle gas tanks.
  • connection couplings With such connection couplings, a safe and quickly connectable transmission of a fluid from a pressure source, for example from a refueling system, to a vehicle is to be achieved.
  • the simple and safe operability is particularly important here, so that easy handling is possible even at high refueling and connection pressures of 200 bar and more.
  • connection coupling Such a connection coupling is described in WO 98/05898 by the applicant, the quick connection coupling having a housing with a fluid inlet and a fluid outlet, and a plurality of valves being provided in order to ensure a secure seal of the quick connection coupling until the connection is completely established.
  • These valves are switched after attaching the quick-connect coupling by turning a control lever in a certain predetermined sequence, the outlet valve being opened first by sliding the quick-connect coupling onto a connecting nipple, then the collets serving as locking elements are closed when the control lever is moved, and finally the Inlet valve is opened.
  • the control lever is engaged via an eccentric shaft with the sliding sleeve for acting on the collets and with a sealing piston which also releases the fluid inlet after the plug-in coupling has been connected.
  • connection coupling has proven itself due to its particularly secure connection possibility, it can be improved with regard to its handling when connecting and the adaptation to different pressure ranges, for example for different types of gas.
  • the invention has for its object to provide a connector, in particular as a quick connector of the type mentioned, which allows a particularly simple handling and connectivity with a stable structure.
  • connection coupling is particularly suitable for use with a quick connection coupling for refueling natural gas vehicles, which results in a particularly stable construction since the collets are already guided in longitudinal grooves during the connection process in the lateral circumferential direction and are therefore tangential or laterally not or during the connection process can hardly evade. As a result, a "skewed" attachment to the connection nipple or even a "bending" or damage to the collets will be avoided.
  • the collets are inserted into the longitudinal grooves with a close lateral fit, so that they are stabilized against tangential forces.
  • the collets are well protected from dirt due to their somewhat recessed position, which results in particularly safe handling.
  • connection coupling Due to the centering bevel integrated at the front end of the guide sleeve, reliable guidance is achieved during the connection process and thus a secure connection of the connection coupling is achieved. This ensures easy handling, so that the connection coupling can also be easily connected by laymen. In addition, the Adaptation to a specific connection nipple involved elements can be exchanged quickly and easily in order to achieve great variability with an optimal fit.
  • V n of special, independent importance is also a wiper ring around a sealing piston, so that if the connecting nipple becomes dirty, dirt can be prevented from entering the connecting coupling.
  • Fig. 1 is a side view of a coupling, which in
  • Fig. 2 is an enlarged view of the front part of the coupling according to FIG. 1 with two different cuts.
  • a preferred embodiment of a connector 10 is shown in the form of a so-called quick connector, which is coupled to a connection nipple 30 indicated here on the left.
  • the connection coupling 10 has a tubular housing 11 with a plurality of housing parts 11a, 11b and 11c which are screwed together, the housing part 11c here on the right serving as the inlet region 12 and the left region as the outlet 13 for the forwarding of the z-transmitting fluid to the connection nipple 30
  • a switching unit 21 with a control lever 50 is arranged around the middle housing part 11b
  • the inlet area 12 has a connection adapter 14, to which a fluid line 12 'for supplying the fluid to be transferred is connected via a thread can be designed accordingly in adaptation to the fluid to be transferred, in particular to the respectively desired supply pressure values, passage cross sections, etc.
  • a plurality of elongate collets 15 arranged in tubular form are provided, which can be expanded radially outward shortly before being fitted onto the connecting nipple 30, the outer ends then being in an annular groove 42 (cf. FIG. 2). can intervene.
  • the elongated collets 15 are prestressed by an annular spring 16, so that the collets 15 can automatically expand radially outwards.
  • the collets 15 At the left end here with inwardly bent surfaces, the collets 15 each have a form-fitting engagement profile 17 which corresponds to a groove-shaped connection profile of the connection nipple 30.
  • Their structure is also described in more detail in the prior art mentioned at the outset, so that further explanation is not necessary here.
  • a sealing piston 22 is guided on the inside, which on its front face has a conical sealing surface 23 for abutment against an inner sealing ring of the connecting nipple 30, so that this is essentially along the central axis of the connecting coupling 10 flowing gaseous and / or liquid fluid can not escape to the outside.
  • An outer sliding sleeve 18 is provided around the collets 15, which is guided via a spacer sleeve 18 'on the cylindrical outer casing of the housing part 11a on the left here and is prestressed in the direction away from the connecting nipple 30 with a compression spring 19.
  • the compression spring 19 is supported. here. a. Support ring 20 and thus pushes the sliding sleeve 18 to the control lever 50 with an eccentric shaft 51.
  • An outlet valve 25 provided on the sealing piston 22 seals against the sealing piston 22 in the closed position by means of a sealing ring as a valve seat 26.
  • the outlet valve 25 is acted upon by a compression spring 28 which is supported on the right side on a slide switch 27 of the switching unit 21.
  • This outlet valve 25 ensures that in the uncoupled position not shown here or until shortly before the connection of the Connection coupling 10 to the connection nipple 30, the fluid supplied through the connection adapter 14 cannot flow out.
  • the switching slide 27 is displaced from the connection nipple 30 by the switching unit 21 along the connection coupling axis and thus forms a ventilation valve 35 together with a sealing washer 24.
  • the vent valve 35 and the switching slide 27 are actuated here by pivoting the control lever 50, since the eccentric shaft 51 is coupled to the switching slide 27, in particular by engagement of a plurality of bolts 29 which are slidably inserted in axial slots 32 and are connected to an outer ring slide 31 , This has an annular groove in which the lower end of the eccentric shaft 51 engages here.
  • Switch unit 21 with the control lever 50 rotatable around this ring slide 31.
  • the engagement profile 17 of the collets 15 is brought into engagement with the connection nipple 30 when plugging onto the connection nipple 30.
  • the control lever 50 By actuating (pivoting by approximately 180 °) the control lever 50 into the position shown here, the sliding sleeve 18 is pushed over the collets 15 and thus locked.
  • the collets 15 are - as shown in Fig. 2 - guided in longitudinal grooves 37 which are incorporated in a guide sleeve 38 to fit the respective collets 15.
  • the collets 15 cannot deflect or even be damaged in the event of a tangential or lateral force (for example in the case of a “skewed” attachment), especially since the guide sleeve 38 extends far beyond the connecting nipple 30 and has a centering bevel 39 there. As a result, the collets 15 are arranged relatively far inside the housing and are therefore well protected.
  • the sealing piston 22 When pressure is applied (beginning of the refueling process), the sealing piston 22 is first shifted to the left (also under the action of the spring 28). On the front circumference of the sealing piston 22 a particularly important scraper ring 40 is provided here (see FIG. 2), which reliably prevents dirt from entering the housing 11 when the sealing piston 22 moves axially. When it is in contact with the sealing surface 23, the valve seat 26 on the icht) piston 22 and thus the outlet valve 25 are then opened by moving the sealing piston 22 to the right.
  • the engagement profile 17 has already engaged on the correspondingly designed connection profile of the connection nipple 30, the axial movement of the sliding sleeve 18 and the associated spacer sleeve 18 'engaging over the radially outer ends of the collets 15, so that these are held in a form-fitting manner on the connection nipple 30 ,
  • the sliding sleeve 18 is pushed back by the compression spring 19 after turning the control lever 50. After a short distance, the collets 15 can spread radially outwards again and engage in the annular groove 42 which is then free due to the axial movement of the sliding sleeve 18/18 '. Since the fluid pressure was interrupted beforehand (e.g. by closing one
  • an inlet valve 45 with an associated valve seat 46 is furthermore arranged centrally in the housing 11 or the housing part 11c of the connection coupling 10.
  • the inlet valve 45 is also axially displaceable by the control lever 50 and its eccentric shaft 51 by coupling with the slide valve 27.
  • This slide valve 27 shifts a valve slide 47 of the inlet valve 45 into the open position via the sealing disk 24 in the connection position shown, so that the fluid flowing in from the inlet area 12 through the valve slide 47 and a passage in the sealing disk 24 and the tubular switch slide 27 to the outlet 13 can flow there.
  • connection coupling 10 When the connecting coupling 10 is released, the control slide 27 is displaced to the left by the bolts 29 by turning the control lever 50 (by approximately 180 °), so that the sealing washer 24 can also be released from the sealing engagement.
  • the pressure within the connection coupling 10 can decrease via purchase slots 36 to a pressure compensation space 44.
  • the vent valve 35 is thus opened by the eccentric shaft 51 and the slide switch 27 when the connecting coupling 10 is uncoupled.
  • pressure medium still present flows via the pressure equalization chamber 44 to a ventilation hole 43 which runs parallel to the central fluid passage (through the valves 45, 35 and 25) in the housing part 11c of the connection coupling 10.
  • the vent hole 43 opens into the second line 12 ′′, which is preferably designed as a return hose and, like the feed line, is delimited by a housing cap 48 in order to be able to serve as a handle for simple handling.
  • the vent line 12 ′′ and the fluid line 12 ′ connected to the adapter 14 thus always run at least largely parallel to one another.
  • Fig. 2 the essential design of the front part or outlet 13 of the connector 10 is shown enlarged, in the lower illustration to clarify the longitudinal groove 37 in the guide sleeve 38 with otherwise the same structure as in the upper illustration, a collet. 15. was omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

Selon l'invention, pour l'obtention d'une structure plus stable d'un raccord destiné à la transmission de fluides gazeux et/ou liquides, en particulier pour le remplissage du réservoir à essence de véhicules automobiles, ledit raccord comprenant une douille coulissante (18) servant au verrouillage de mâchoires de serrage (15) sur un manchon de raccordement (30), il est proposé qu'une douille de guidage (38) pourvue de rainures longitudinales (37) soit disposée entre la douille coulissante (18) et les mâchoires de serrage (15), les mâchoires de serrage (15) étant guidées dans lesdites rainures longitudinales.
EP03708161A 2002-03-02 2003-03-01 Raccord avec douille coulissante et machoires de serrage Ceased EP1483522A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20203246U 2002-03-02
DE20203246U DE20203246U1 (de) 2002-03-02 2002-03-02 Anschlußkupplung mit Schiebehülse und Spannzangen
PCT/EP2003/002112 WO2003074921A1 (fr) 2002-03-02 2003-03-01 Raccord avec douille coulissante et machoires de serrage

Publications (1)

Publication Number Publication Date
EP1483522A1 true EP1483522A1 (fr) 2004-12-08

Family

ID=7968446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03708161A Ceased EP1483522A1 (fr) 2002-03-02 2003-03-01 Raccord avec douille coulissante et machoires de serrage

Country Status (8)

Country Link
US (1) US7494158B2 (fr)
EP (1) EP1483522A1 (fr)
JP (1) JP4198066B2 (fr)
CN (1) CN1289849C (fr)
AU (1) AU2003212290A1 (fr)
CA (1) CA2483578C (fr)
DE (1) DE20203246U1 (fr)
WO (1) WO2003074921A1 (fr)

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DE20203246U1 (de) 2003-04-17
CN1643290A (zh) 2005-07-20
US7494158B2 (en) 2009-02-24
JP2006508298A (ja) 2006-03-09
CN1289849C (zh) 2006-12-13
WO2003074921A1 (fr) 2003-09-12
JP4198066B2 (ja) 2008-12-17
CA2483578A1 (fr) 2003-09-13
CA2483578C (fr) 2011-09-27
US20050212289A1 (en) 2005-09-29
AU2003212290A1 (en) 2003-09-16

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