WO2023009163A1 - Ensemble de raccordement de fluide - Google Patents

Ensemble de raccordement de fluide Download PDF

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Publication number
WO2023009163A1
WO2023009163A1 PCT/US2021/071030 US2021071030W WO2023009163A1 WO 2023009163 A1 WO2023009163 A1 WO 2023009163A1 US 2021071030 W US2021071030 W US 2021071030W WO 2023009163 A1 WO2023009163 A1 WO 2023009163A1
Authority
WO
WIPO (PCT)
Prior art keywords
facing surface
radially inward
recited
fluid connection
radially outward
Prior art date
Application number
PCT/US2021/071030
Other languages
English (en)
Inventor
Andrew Jon CRANE
Original Assignee
Oetiker Ny, Inc.
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 Oetiker Ny, Inc. filed Critical Oetiker Ny, Inc.
Priority to PCT/US2021/071030 priority Critical patent/WO2023009163A1/fr
Publication of WO2023009163A1 publication Critical patent/WO2023009163A1/fr

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
    • F16L37/084—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
    • F16L37/088—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 by means of a split elastic ring
    • F16L37/0885—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 by means of a split elastic ring with access to the split elastic ring from a radial or tangential opening in the coupling
    • 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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/02—Hose-clips
    • F16L33/03—Self-locking elastic clips
    • 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
    • F16L37/0841—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 by means of a transversally slidable locking member surrounding the tube
    • 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
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/20—Safety or protective couplings

Definitions

  • the present disclosure relates to fluid connectors, and, more particularly, to a fluid connection assembly including both a primary retaining clip and a secondary retainer that provides added securement or a backup securement device.
  • Fluid connectors, fluid connections, and fluid connection assemblies are integral components for many applications, and especially for automotive applications. Since an automotive system is made up of various components such as a radiator, transmission, and engine, fluid must be able to travel not only within each component but also between components.
  • An example of fluid traveling between components is the transmission fluid traveling from the transmission to the transmission oil cooler in order to lower the temperature of the transmission fluid.
  • Another example of fluid traveling between components is oil being pumped to and/or from a turbocharger. Fluid predominantly moves between components via flexible or rigid hoses which connect to each component by fluid connectors.
  • Such fluid connectors typically include a retaining clip, retaining ring clip, or snap ring carried on the connector body which is adapted to snap behind a raised shoulder of a tube when the tube is fully inserted into the connector body.
  • a retaining clip typically includes a retaining clip, retaining ring clip, or snap ring carried on the connector body which is adapted to snap behind a raised shoulder of a tube when the tube is fully inserted into the connector body.
  • failure of such retaining clip is possible if installed improperly.
  • failure of such retaining clip is also possible in high fluid pressure situations.
  • a fluid connection assembly including a secondary retainer that can be arranged complementary to a retainer clip so as to provide added securement and/or a backup securement in case of failure of the retainer clip.
  • a fluid connection assembly comprising a connector body, including a first end, a second end, a through-bore, and a first radially outward facing surface comprising a first groove, the first groove including at least one aperture, a retaining clip arranged in the groove and operatively arranged to extend into the through-bore, and a secondary retainer, including a band portion including a third end, a fourth end, and a radially inward facing surface, and at least one arm portion, comprising a first member connected to the fourth end, and a second member connected to the first member and operatively arranged to engage the first groove and extend into the through-bore.
  • the band portion is adjustable.
  • the band portion further comprises a flange extending radially inward from the third end.
  • the first radially outward facing surface further comprises a second groove, wherein the flange is operatively arranged to engage the second groove.
  • the arm portion further comprises a protrusion extending radially inward from the first member.
  • the first radially outward facing surface comprises at least one flat, and in a locked position of the secondary retainer the protrusion is at least partially engaged with the at least one flat.
  • the protrusion is arranged axially between and spaced apart from the fourth end and the second member.
  • the arm portion further comprises at least one projection extending radially inward from the first member, and the at least one projection is arranged immediately adjacent the second member.
  • the protrusion engages the retaining clip.
  • the at least one arm portion comprises a plurality of arm portions separated by circumferential spaces.
  • the fluid connection assembly further comprises a tube including a shoulder and a second radially outward facing surface, wherein in a connected state of the fluid connection assembly, the retaining clip secures the tube in the connector body.
  • the second member engages the second radially outward facing surface.
  • a retainer for a fluid connection assembly comprising a band portion, including a first end, a second end, a first radially inward facing surface, a first radially outward facing surface, and a flange connected to the first end and extending radially inward from the first radially inward facing surface, a plurality of arm portions separated by circumferential spaces, each arm portion of the plurality of arm portions including a first member, including a third end connected to the second end, a fourth end, a second radially inward facing surface, and a second radially outward facing surface, and a second member connected to the fourth end and extending radially inward from the second radially inward facing surface.
  • the band portion is adjustable and comprises a clamping mechanism.
  • the clamping mechanism comprises atari and a buckle, and the buckle is operatively arranged to secure the tail therein.
  • at least one arm member of the plurality of arm members further comprises at least one protrusion extending radially inward from the second radially inward facing surface.
  • the at least one protrusion is arranged axially between and spaced apart from the band portion and the second member.
  • the at least one protrusion is arranged immediately adjacent the second member.
  • the band portion is non-continuous in a circumferential direction.
  • At least one arm member of the plurality of arm members further comprises a protrusion extending radially inward from the second radially inward facing surface and arranged axially between and spaced apart from the band portion and the second member, and a projection extending radially inward from the second radially inward facing surface and arranged immediately adjacent the second member.
  • the secondary retainer has an adjustable ring/clamp portion including a radially inward extending protrusion or flange that engages an exterior groove of the connector body. This adjustable clamp secures the secondary retainer to the connector body.
  • the secondary retainer further comprises finger portions that extend axially from the adjustable ring and having members that extend radially inward and engage the bumps/protrusions of the retaining clip, thereby further securing the connection. This makes it even more difficult for the retaining clip to be disengaged from the connector body.
  • the finger portions may comprise a radially inward extending boss or protrusion that engages a flat on the connector body.
  • the boss engages the radially outward facing surface of the connector body and forces the fingers radially outward thereby disengaging the fingers from the retaining clip.
  • the fingers may include additional bosses or contours at the distal ends thereof to further aid in the radially outward expansion of the fingers as the secondary retainer is rotated.
  • Figure 1 A is a front perspective view of a fluid connection assembly
  • Figure IB is a rear perspective view of the fluid connection assembly shown in Figure 1A;
  • Figure 2 is a front perspective exploded view of the fluid connection assembly shown in Figure 1 A;
  • Figure 3 A is a front perspective view of the secondary retainer and retaining clip shown in Figure 1 A;
  • Figure 3B is a rear perspective view of the secondary retainer and retaining clip shown in Figure 3 A;
  • Figure 4A is a front perspective view of a secondary retainer and the retaining clip shown in Figure 1 A;
  • Figure 4B is a rear perspective view of the secondary retainer and retaining clip shown in Figure 4A;
  • Figure 5A is a front perspective view of a secondary retainer and the retaining clip shown in Figure 1 A;
  • Figure 5B is a rear perspective view of the secondary retainer and retaining clip shown in Figure 5A;
  • Figure 6 is a cross-sectional view of the fluid connection assembly taken generally along line 6-6 in Figure 1 A;
  • Figure 7 is a cross-sectional view of the fluid connection assembly taken generally along line 7-7 in Figure 1 A.
  • the term “substantially” is synonymous with terms such as “nearly,” “very nearly,” “about,” “approximately,” “around,” “bordering on,” “close to,” “essentially,” “in the neighborhood of,” “in the vicinity of,” etc., and such terms may be used interchangeably as appearing in the specification and claims.
  • proximate is synonymous with terms such as “nearby,” “close,” “adjacent,” “neighboring,” “immediate,” “adjoining,” etc., and such terms may be used interchangeably as appearing in the specification and claims.
  • the term “approximately” is intended to mean values within ten percent of the specified value.
  • a device comprising a first element, a second element and/or a third element is intended to be construed as any one of the following structural arrangements: a device comprising a first element; a device comprising a second element; a device comprising a third element; a device comprising a first element and a second element; a device comprising a first element and a third element; a device comprising a first element, a second element and a third element; or, a device comprising a second element and a third element.
  • a device comprising at least one of: a first element; a second element; and, a third element is intended to be construed as any one of the following structural arrangements: a device comprising a first element; a device comprising a second element; a device comprising a third element; a device comprising a first element and a second element; a device comprising a first element and a third element; a device comprising a first element, a second element and a third element; or, a device comprising a second element and a third element.
  • a similar interpretation is intended when the phrase “used in at least one of:” is used herein.
  • tube as used herein is synonymous with hose, pipe, channel, conduit, tube end form, or any other suitable pipe flow used in hydraulics and fluid mechanics. It should further be appreciated that the term “tube” can mean a rigid or flexible conduit of any material suitable for containing and allowing the flow of a gas or a liquid.
  • Figure 1A is a front perspective view of fluid connection assembly 10.
  • Figure IB is a rear perspective view of fluid connection 10.
  • Figure 2 is a front perspective exploded view of fluid connection 10.
  • Fluid connection assembly generally comprises connector body 40, retaining clip 70, tube 80, and secondary retainer 100. The following description should be read in view of Figures 1A-2.
  • Tube 80 comprises end 82, section 83, shoulder 87, section 89, end 94, and through-bore 96.
  • Through-bore 96 extends through tube 80 from end 82 to end 94.
  • Section 83 is arranged between end 82 and shoulder 87 and comprises radially outward facing surface 84.
  • Radially outward facing surface 84 includes a substantially constant diameter.
  • radially outward facing surface 84 comprises a frusto-conical or curvilinear taper proximate end 82 (see Figure 6).
  • section 83 further comprises a raised section arranged between radially outward facing surface 84 and shoulder 87.
  • radially outward facing surface 86 is a frusto-conical surface extending from radially outward surface 84 to surface 88. Radially outward facing surface 86 increases in diameter is axial direction AD2. In some embodiments, radially outward facing surface 86 is an axial surface facing at least partially in axial direction ADI. In some embodiments, tube 80 comprises a constant diameter radially outward facing surface arranged between radially outward facing surface 86 and surface 88.
  • tube 80 comprises a frusto-conical surface arranged radially between radially outward facing surface 86 and surface 88, the frusto-conical surface decreasing in diameter in axial direction AD2 (see Figure 6).
  • Shoulder surface 88 is an axial surface facing at least partially in axial direction AD2.
  • Section 89 is arranged between shoulder 87 and end 94 and comprises radially outward facing surface 92.
  • Radially outward facing surface 92 includes a substantially constant diameter.
  • section 89 further comprises a raised section, namely, radially outward facing surface 90, arranged between shoulder surface 88 and radially outward facing surface 92.
  • Radially outward facing surface 90 has a diameter that is greater than the diameter of radially outward facing surface 92.
  • Tube 80 is arranged to be inserted, specifically with end 82 first, into connector body 40, specifically through-bore 41. Tube 80 is inserted into connector body 40 until section 83, or radially outward facing surface 84, engages seal 62 (see Figure 6), and shoulder 87 axially clears retaining clip 70 (i.e., shoulder 87 is arranged on the right side of retaining clip 70 as shown in Figure 6). It is the engagement of protrusions 72A-C with shoulder surface 88 that secures tube 80 within connector body 40.
  • tube 80 may be any traditional tube or tube end form comprising a bead, radially outward extending protrusion or flange, or ramp profile, which extends radially outward and axially on the outer surface of the tube, to secure the tube within the connector body.
  • tube 80 comprises a metal.
  • tube 80 comprises a nonmetal (e.g., polymer, rubber, ceramic, etc.).
  • Figure 3A is a front perspective view of secondary retainer 100 and retaining clip 70.
  • Figure 3B is a rear perspective view of secondary retainer 100 and retaining clip 70.
  • Figure 4A is a front perspective view of secondary retainer 100 and retaining clip 70.
  • Figure 4B is a rear perspective view of secondary retainer 100 and retaining clip 70.
  • Figure 5A is a front perspective view of secondary retainer 100 and the retaining clip 70.
  • Figure 5B is a rear perspective view of secondary retainer 100 and retaining clip 70.
  • Figure 6 is a cross-sectional view of fluid connection assembly 10 taken generally along line 6-6 in Figure 1 A.
  • Figure 7 is a cross-sectional view of fluid connection assembly 10 taken generally along line 7-7 in Figure 1A. The following description should be read in view of Figures 1A-7.
  • Connector body 40 comprises through-bore 41 extending from end 42 to end
  • Connector body 40 is arranged to be connected to a component that is filled with a fluid or through which fluid flows.
  • connector body 40 may be connected to a turbocharger, refrigeration compressor, or a transmission via radially outward facing surface 60, which may comprise external threading.
  • Connector body 40 may be screwed into a threaded hole in the component via head 58 (e.g., using a wrench), which is then filled with oil, refrigerant, transmission fluid, coolant, etc.
  • head 58 is hexagonal; however, it should be appreciated that head 58 may comprise any geometry suitable for applying torque to connector body 40.
  • Another component in which fluid connector 10, specifically connector body 40, may be installed into is a condenser, evaporator, or pump.
  • fluid connection assembly 10 may be used in various other components, assemblies, and subassemblies in which fluid connection is desired.
  • Radially outward facing surface 60 may further comprise groove 56. Seal or O-ring 64 is arranged in groove 56 to create a fluid tight seal between connector body 40 and the component it is connected to.
  • Seal 62 is arranged in connector body 40. Specifically, seal 62 is arranged in groove 50. Groove 50 is arranged in radially inward facing surface 48. In some embodiments, seal 62 is an O-ring. In some embodiments, radially inward facing surface 46 is a cylindrical surface that extends from end 44 to surface 47. Radially inward facing surface 46 is connected to radially inward facing surface 48 via surface 47. In some embodiments, surface 47 is a frusto- conical surface that connects generally cylindrical radially inward facing surface 46 with generally cylindrical radially inward facing surface 48. In some embodiments, surface 47 is an axial surface facing in axial direction AD2. In some embodiments, radially inward facing surface 48 is a cylindrical surface that extends from end 42 to surface 47.
  • Groove 54A is arranged in radially outward facing surface 52A and comprises a radially outward facing surface and two axial surfaces extending therefrom. Groove 54A is arranged axially between end 44 and head 58. In some embodiments, groove 54A is arranged between end 44 and radially outward facing surface 52B. Groove 54A further comprises apertures 55A-C arranged circumferentially thereabout. Apertures 55A-C extend from radially outward facing surface 52A to through-bore 41. Groove 54A is operatively arranged to engage retaining clip 70 and secondary retainer 100, as will be described in greater detail below.
  • Radially outward facing surface 52B is arranged adjacent to radially outward facing surface 52A, namely, between radially outward facing surface 52A and head 58. In some embodiments, radially outward facing surface 52B comprises a diameter that is greater than the diameter of radially outward facing surface 52A. In some embodiments, radially outward facing surface 52B comprises a diameter that is less than or equal to the diameter of radially outward facing surface 52A.
  • Groove 54B is arranged in radially outward facing surface 52B. In some embodiments, groove 54B is arranged axially between groove 54A and head 58. In some embodiments, groove 54B is arranged immediately adjacent head 58. Groove 54B is operatively arranged to engage secondary retainer 100, specifically flange 116, as will be described in greater detail below.
  • radially outward facing surface 52B comprises one or more flats, for example flats 53A-C, which are planar surfaces on an otherwise curvilinear radially outward facing surface 52B.
  • radially outward facing surface 52B comprises radius R1 and flats 53A-C comprise radius R2, radius R1 being greater than radius R2.
  • the radius of groove 54B is equal to radius R2 of flats 53A-C.
  • Flats 53A-C are operatively arranged to engage protrusions 128, as will be described in greater detail below.
  • connector body 40 does not include head 58 and torque is applied thereto via flats 53A-C.
  • connector body 40 comprises a metal. In some embodiments, connector body 40 comprises a nonmetal (e.g., polymer, ceramic, rubber).
  • Retaining clip or retaining ring or snap clip/ring 70 is arranged in groove 54A in body 40. Retaining clip 70 is generally ring-shaped including one or more protrusions extending radially inward. In the embodiment shown, retaining clip 70 comprises protrusions 72A-C. Protrusions 72A-C extend radially inward through apertures 55A-C in groove 54A. Protrusions 72A-C are arranged to engage shoulder 87, specifically, surface 88, to secure tube 80 within connector body 40.
  • Each of protrusions 72A-C comprises a “U” or “V” shape and project radially inward from radially outward facing surface 74.
  • radially outward facing surface 74 is the radially outermost surface of retaining clip 70.
  • Retaining clip 70 may comprise any material that is capable of elastically deforming and returning to its original shape (e.g., metal, polymer, etc.).
  • Secondary retainer 100 generally comprises band portion 102 and at least one arm portion 120, and is operatively arranged to engage connector body 40, tube 80, and retaining clip 70.
  • Band portion 102 is arranged outside of connector body 40 and arm portion 120 is arranged at least partially inside of connector body 40.
  • Band portion 102 includes end 104, end 106, radially inward facing surface 108, and radially outward facing surface 110.
  • band portion 102 namely, radially inward facing surface 108 and radially outward facing surface 110, comprises a constant diameter.
  • Band portion 102 is operatively arranged to engage connector body 40 to connect secondary retainer 100 thereto.
  • Secondary retainer 100 further comprises radially inward extending flange 116 connected to end 104. Flange 116 extends radially inward from radially inward facing surface 108 and is operatively arranged to engage groove 54B.
  • the diameter of band portion 102 is adjustable and/or comprises a clamp mechanism.
  • band portion 102 may comprise a circumferential gap forming two circumferential ends, wherein the first circumferential end includes tail 112 and the second circumferential end includes buckle 114.
  • Tail 112 is operatively arranged to engage buckle 114 and buckle 114 is arranged to fixedly secure tail 112 therein, thereby locking the diameter of band portion 102.
  • Buckle 114 is generally a loop and buckle 114 and tail 112 may protrude radially outward from radially outward facing surface 110. Tail 112 engages buckle 114 and is pulled therethrough until the desired diameter of band portion 102 is achieved.
  • connection may be, or is similar to, an OETIKER® WINGGUARD® strap clamp.
  • tail 112 and buckle 114 are replaced with the components of an OETIKER® worm drive clamp, OETIKER® STEPLESS® screw clamp, OETIKER® universal clamp, OETIKER® reusable low profile clamp, OETIKER® TOOTHLOCK® low profile clamp, OETIKER® STEPLESS® low profile clamp, OETIKER® V-clamp, or OETIKER® ear clamp.
  • any adjustment mechanism suitable for decreasing and increasing the diameter of band portion 102 so as to secure secondary retainer 100 to connector body 40 may be used.
  • band portion 102 may be elastic and assembled radially on connector body 40.
  • band portion 102 may expand in a radially outward direction (i.e., increase in diameter) and then, once properly arranged on connector body 40, contract back to its original diameter.
  • Arm portion or portions 120 are connected to band potion 102.
  • secondary retainer 100 comprises a plurality of arm portions, for example, three arm portions 120, separated by circumferential spaces 118.
  • Each of arm portions 120 comprises member 122, radially inward facing surface 124, and radially outward facing surface 126.
  • Member 122 at its proximal end, extends from end 106 in axial direction ADI.
  • radially outward facing surface 126 is aligned with radially outward facing surface 110 and radially inward facing surface 124 is aligned with radially inward facing surface 108. That is to say, in some embodiments, arm portions 120 comprise a diameter that is equal to band portion 102.
  • member 122 comprises protrusion 128 (see Figures 3 A-
  • Protrusion 128 protrudes radially inward from radially inward facing surface 124. Protrusion 128 is arranged axially between end 106 and a distal end of member 122, specifically, member 130. In some embodiments, protrusion 128 is arranged axially between and spaced apart from end 106 and member 130. Protrusion 128 is operatively arranged to engage radially outward facing surface 52B and flats 53A-C. Specifically, in the locked position of secondary retainer 100, protrusions 128 are operatively arranged to at least partially align with flats 53A-C.
  • protrusions 128 are not completely aligned with flats 53A- C.
  • one protrusion 128 is completely aligned with flat 53B (i.e., no part of protrusion 128 is circumferentially aligned with radially outward facing surface 52B).
  • Two of protrusions 128 are only partially aligned with flats 53A and 53C (i.e., part of each of protrusions 128 are circumferentially aligned with radially outward facing surface 52B).
  • arm portion 120 further comprises one or more members
  • Member 130 is connected to the distal end of member 122 and extends radially inward from radially inward facing surface 124 in radial direction RD2. In some embodiments, member 130 is arranged perpendicular to radially inward facing surface 124. In some embodiments, member 130 is arranged nonperpendicular to radially inward facing surface 124. Members 130 are operatively arranged to extend through apertures 55A-C and engage both retaining clip 70 and tube 80. In a connected state of tube 80 in connector body 40, shoulder 87 is arranged on a first axial side of retaining clip 70. In the locked position of secondary retainer 100, members 130 are arranged on a second axial side of retaining clip 70, opposite the first axial side.
  • arm portion 120 may further comprise one or more projections or ramps, for example, projections 140A-B.
  • Projections 140A-B are arranged between end 106 and member 130. In some embodiments, projections 140A-B are arranged immediately adjacent to member 130. Projections 140A-B extend radially inward from radially inward facing surface 124. In some embodiments, projections 140A-B vary in diameter.
  • projection 140A decreases in diameter (i.e., protrudes further from radially inward facing surface 124) in circumferential direction CD2 and projection 140B decreases in diameter (i.e., protrudes further from radially inward facing surface 124) in circumferential direction CD1 (see Figure 4B).
  • Projections 140A-B engage radially outward facing surface 74 of retaining clip 70 and help to “squeeze” or compress retaining clip 70 about tube 80 providing added securement.
  • projections 140A-B engage radially outward facing surface 74 of retaining clip 70 and force arm portions 120 radially outward to disengage members 130 from apertures 55A-C (similar to the effect of protrusions 128).
  • arm portion 120 may further comprise projection or ramp 150.
  • Projection 150 is arranged between end 106 and member 130. In some embodiments, projection 150 is arranged immediately adjacent to member 130. Projection 150 extends radially inward from radially inward facing surface 124. In some embodiments, projection 150 is a curvilinear surface and varies in diameter and comprises surfaces 152A and 152B.
  • surface 152A decreases in diameter (i.e., protrudes further from radially inward facing surface 124) in circumferential direction CD1 and projection 152B decreases in diameter (i.e., protrudes further from radially inward facing surface 124) in circumferential direction CD2 (see Figure 5B).
  • Projections 150 engage protrusions 72A-C and help to “squeeze” or compress retaining clip 70 about tube 80 providing added securement.
  • Radially outward facing surface 84 engages seal 62 and section 83 is arranged inside of connector body 40 proximate radially inward facing surface 48.
  • shoulder 87 engages protrusions 72A-C
  • retaining clip 70 expands radially outward in radial direction RD1.
  • shoulder 87 clears protrusions 72A- C (i.e., is arranged axially between protrusions 72A-C and surface 47)
  • protrusions 72A-C snap back radially inward in radial direction RD2 to form the connected state.
  • shoulder 87 engages or is arranged proximate surface 47 and/or surface 46.
  • secondary retainer 100 is arranged on connector body 40 such that end
  • secondary retainer 100 is assembled radially onto connector body 40 through a circumferential gap in band portion 102 such that radially inward facing surface 108 is aligned with radially outward facing surface 52B, flange 116 is aligned with groove 54B, and members 130 are aligned with groove 54A and apertures 55A-C.
  • band portion 102 may elastically expand or increase in diameter.
  • band portion 102 is tightened, for example, by pulling tail 112 through buckle 114 band portion 102 is firmly clamped around connector body 40. Such tightening forces flange 116 into engagement with groove 54B, which prevents axial displacement of secondary retainer 100 with respect to connector body (see Figure 6). The tightening of band portion 102 also forces members 130 through apertures 55A-C such that they engage tube 80 and protrusions 72A-C (see Figure 6). This is the locked position of secondary retainer 100.
  • members 130 extend through apertures 55A-C and engage tube 80 and/or retaining clip 70.
  • members 130 abut against a radially outward facing surface of tube 80, for example, radially outward facing surface 90 or radially outward facing surface 92, which prevents or inhibits debris from entering connector body 40.
  • protrusions 128 engage radially outward facing surface 52B and/or flats 53A-C.
  • projections 140A-B engage protrusions 72A-C and/or radially outward facing surface 74 of retaining clip 70.
  • projections 150 engage protrusions 72A-C and/or radially outward facing surface 74 of retaining clip 70.
  • secondary retainer 100 provides added retaining force to retaining clip
  • Secondary retainer 100 also provides radial force in radial direction RD2 and/or prevent radial displacement of retaining clip 70 in radial direction RD1 (i.e., due to engagement of projections 140A-B or 150). Moreover, if retaining clip 70 were to fail due to improper assembly or excessive force, secondary retainer 100 would prevent tube 80 from being ejected from connector body 40.
  • engaged arm portions 120 must be displaced radially outward to disengage members 130 from apertures 55A-C and groove 54A.
  • secondary retainer 100 may be displaced in circumferential direction CD1 or circumferential direction CD2 with respect to connector body 40.
  • protrusions 128 disengage flats 53A-C and engage radially outward facing surface 52B thereby forcing arm portions 120 radially outward (due to the larger radius Rl); 2) projections 140A-B engage radially outward facing surface 74 of retaining clip 70 thereby forcing arm portions 120 radially outward; and/or, 3) projections 150 engage radially outward facing surface 74 of retaining clip 70 thereby forcing arm portions 120 radially outward.
  • Rotating secondary retainer 100 out of apertures 55A-C i.e., displacing secondary retainer 100 60 degrees circumferentially with respect to connector body 40) allows retaining clip 70 to be expanded and tube 80 to be removed from connector body 40.
  • band portion 102 is released and expanded radially to disengage flange 116 from groove 54B. Then, secondary retainer 100 is displaced radially in radial direction RD1 and/or axially in axial direction AD2 and removed from connector body
  • retaining clip 70 is expanded radially until protrusions 72A-C radially clear and disengage from shoulder 87, at which point tube 80 is displaced in axial direction AD2 and removed from connector body 40. Retaining clip 70 may optionally be completely removed from connector body 40.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

L'invention concerne un ensemble de raccordement de fluide, comprenant : un corps de raccord (40), comprenant : une première extrémité ; une deuxième extrémité ; un alésage traversant (41) ; et une première surface orientée radialement vers l'extérieur comprenant une première rainure (54A), la première rainure incluant au moins une ouverture (55C) ; une attache de retenue (70) disposée dans la rainure et agencée de manière fonctionnelle pour s'étendre dans l'alésage traversant ; et un élément de retenue secondaire (100), incluant : une partie bande (102) incluant une troisième extrémité, une quatrième extrémité et une surface orientée radialement vers l'intérieur ; et au moins une partie bras (120), comprenant : un premier élément relié à la quatrième extrémité ; et un second élément (130) relié au premier élément et agencé de manière fonctionnelle pour venir en prise avec la première rainure (54A) et s'étendre dans l'alésage traversant (41).
PCT/US2021/071030 2021-07-28 2021-07-28 Ensemble de raccordement de fluide WO2023009163A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2021/071030 WO2023009163A1 (fr) 2021-07-28 2021-07-28 Ensemble de raccordement de fluide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2021/071030 WO2023009163A1 (fr) 2021-07-28 2021-07-28 Ensemble de raccordement de fluide

Publications (1)

Publication Number Publication Date
WO2023009163A1 true WO2023009163A1 (fr) 2023-02-02

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2086514A (en) * 1980-10-30 1982-05-12 Gen Motors Corp Quick-connect hydraulic coupling assemblies
EP1806528A1 (fr) * 2006-01-05 2007-07-11 Rasmussen GmbH Raccord pour tuyaux avec embouts
EP1781979B1 (fr) * 2004-08-16 2009-11-25 Voss Automotive GmbH Raccord emboitable pour conduites fluidiques
US20170114935A1 (en) * 2014-05-30 2017-04-27 Jiffy-Tite Co., Inc. Fluid connector with full insertion assurance cap disconnect tool
CN111795243A (zh) * 2020-07-10 2020-10-20 安徽江淮汽车集团股份有限公司 一种涡轮蜗杆环箍、传动结构以及汽车

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2086514A (en) * 1980-10-30 1982-05-12 Gen Motors Corp Quick-connect hydraulic coupling assemblies
EP1781979B1 (fr) * 2004-08-16 2009-11-25 Voss Automotive GmbH Raccord emboitable pour conduites fluidiques
EP1806528A1 (fr) * 2006-01-05 2007-07-11 Rasmussen GmbH Raccord pour tuyaux avec embouts
US20170114935A1 (en) * 2014-05-30 2017-04-27 Jiffy-Tite Co., Inc. Fluid connector with full insertion assurance cap disconnect tool
CN111795243A (zh) * 2020-07-10 2020-10-20 安徽江淮汽车集团股份有限公司 一种涡轮蜗杆环箍、传动结构以及汽车

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