EP1766315B1 - Zurückziehbares werkzeug zum aufziehen von rippen und verwendungsverfahren - Google Patents

Zurückziehbares werkzeug zum aufziehen von rippen und verwendungsverfahren Download PDF

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Publication number
EP1766315B1
EP1766315B1 EP05749473A EP05749473A EP1766315B1 EP 1766315 B1 EP1766315 B1 EP 1766315B1 EP 05749473 A EP05749473 A EP 05749473A EP 05749473 A EP05749473 A EP 05749473A EP 1766315 B1 EP1766315 B1 EP 1766315B1
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EP
European Patent Office
Prior art keywords
tool
tube
housing
cutting
plane
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Active
Application number
EP05749473A
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English (en)
French (fr)
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EP1766315A2 (de
EP1766315A4 (de
Inventor
Petur Thors
Bruce Kouse
Gerry Minshall
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.)
Wolverine Tube Inc
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Wolverine Tube 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
Priority claimed from US10/972,734 external-priority patent/US7311137B2/en
Application filed by Wolverine Tube Inc filed Critical Wolverine Tube Inc
Priority to PL05749473T priority Critical patent/PL1766315T3/pl
Publication of EP1766315A2 publication Critical patent/EP1766315A2/de
Publication of EP1766315A4 publication Critical patent/EP1766315A4/de
Application granted granted Critical
Publication of EP1766315B1 publication Critical patent/EP1766315B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with helical guides

Definitions

  • the invention relates generally to a tool for forming protrusions on the inner surface of a heat transfer tube as defined in the preamble of claim 1 and a method for using the tool.
  • a tool in disclosed in JP-09108759 .
  • This invention relates to heat transfer tubes having an enhanced inner surface to facilitate heat transfer from one side of the tube to the other.
  • Heat transfer tubes are commonly used in equipment, such as, for example, flooded evaporators, falling film evaporators, spray evaporators, absorption chillers, condensers, direct expansion coolers, and single phase coolers and heaters, used in the refrigeration, chemical, petrochemical, and food-processing industries.
  • a variety of heat transfer mediums may be used in these applications, including, but not limited to, pure water, a water glycol mixture, any type of refrigerant (such as R-22, R-134a, R-123, etc.), ammonia, petrochemical fluids, and other mixtures.
  • An ideal heat transfer tube would allow heat to flow completely uninhibited from the interior of the tube to the exterior of the tube and vice versa.
  • free flow of heat across the tube is generally thwarted by the resistance to heat transfer.
  • the overall resistance of the tube to heat transfer is calculated by adding the individual resistances from the outside to the inside of the tube or vice versa.
  • tube manufacturers have sought to uncover ways to reduce the overall resistance of the tube.
  • One such way is to enhance the outer surface of the tube, such as by forming fins on the outer surface. As a result of recent advances in enhancing the outer tube surface (see, e.g., U.S. Patent Nos.
  • the pattern, shapes and sizes of the grooves and ridges on the inner tube surface may be changed to further increase heat exchange performance.
  • tube manufacturers have gone to great expense to experiment with alternative designs, including those disclosed in U.S. Patent No. 5,791,405 to Takima et al ., U.S. Patent Nos. 5,332,034 and 5,458,191 to Chiang et al ., and U.S. Patent No. 5,975,196 to Gaffaney et al .
  • Japanese Patent Application 09108759 discloses a tool for centering blades that cut a continuous spiral groove directly on the inner surface of a tube.
  • Japanese Patent Application 10281676 discloses a tube expanding plug equipped with cutting tools that cut a continuous spiral slot and upstanding fm on the inner surface of a tube.
  • U.S. Patent No. 3,753,364 discloses forming a continuous groove along the inner surface of a tube using a cutting tool that cuts into the inner tube surface and folds the material upwardly to form the continuous groove.
  • This invention as defined in claims 1 and 12 respectively provides an improved tool and method for enhancing the heat transfer performance of tubes used in at least all of the above-referenced applications (i.e., flooded evaporators, falling film evaporators, spray evaporators, absorption chillers, condensers, direct expansion coolers and single phase coolers and heaters, used in the refrigeration, chemical, petrochemical and food-processing industries).
  • the inner surface of the tube is enhanced with a plurality of protrusions that significantly reduce tube-side resistance and improve overall heat transfer performance. Formation of protrusions in accordance with this invention can result in the formation of up to five times more surface area along the inner surface of the tube than with simple ridges.
  • Certain embodiments of the invention include using a tool, which can be easily added to existing manufacturing equipment, having a cutting edge to cut through the surface of the tube and a lifting edge to lift the surface of the tube to form protrusions. In this way, protrusions are formed without removal of metal from the inner surface of the tube, thereby eliminating debris that can damage the equipment in which the tubes are used.
  • inventions include a tool for cutting the inner surface of a tube.
  • the tool includes a tool axis and at least one tip formed by the intersection of at least a first plane, a second plane and a third plane, and has a cutting edge and a lifting edge.
  • the tool also includes a housing, a spacer and a spring.
  • the spacer applies pressure to a surface of the at least one cutting bit adjacent to the tip and causes the at least one cutting bit to protrude from the housing when frictional or axial forces are exerted on the spacer.
  • the spring is adjacent to a base end of the cutting bit. The spring extends when the forces relax and allows the at least one cutting bit to retract within the housing.
  • inventions include a tool for cutting the inner surface of a tube.
  • the tool includes at least one cutting bit with a tool axis and at least one tip formed by the intersection of at least a first plane, a second plane and third plane, and has a cutting edge and a lifting edge.
  • inventions include a method of enhancing the inner surface of a tube.
  • the method includes mounting a tool onto a shaft, positioning the tool in the tube and causing relative rotation and relative axial movement between the tube and the tool to cut at least partially through at least one ridge formed along the surface of the tube to form ridge layers and subsequently lifting the ridge layers to form protrusions.
  • the tool preferably includes a tool axis and at least one cutting bit formed by the intersection of at least a first plane, a second plane, and a third plane and has a cutting edge and a lifting edge.
  • the tool also includes a housing, a spacer and a spring.
  • the spacer applies pressure to a surface of the at least one cutting bit adjacent to the tip and causes the at least one cutting bit to protrude from the housing when frictional or axial forces are exerted on the spacer.
  • the spring is adjacent to a base end of the cutting bit. The spring extends when the forces relax and allows the at least one cutting bit to retract within the housing.
  • the cutting edge is formed by the intersection of the first and second planes.
  • the lifting edge is formed by the intersection of the first and third planes.
  • the second plane is oriented at an angle relative to a plane perpendicular to the tool axis. In a particular embodiment, the second plane is oriented at an angle between approximately 40° and 70° relative to the plane perpendicular to the tool axis. In a more particular embodiment, the second plane is oriented at an angle such that the cutting edge slices through ridges on a tube surface at an angle between approximately 20° and 50° relative to the plane perpendicular to the tool axis.
  • the third plane is oriented at an angle relative to a plane perpendicular to the tool axis. In a particular embodiment, the third plane is oriented at an angle between approximately -45° and 45° relative to the plane perpendicular to the tool axis.
  • the cutting edge slices through ridges on an inner surface of the tube at angle between 20° and 50° to create a plurality of protrusions.
  • the lifting edge lifts the plurality of protrusions at an angle of inclination relative to a plane perpendicular to a longitudinal axis of the tube. In a more particular embodiment, the lifting edge lifts the protrusions at approximately -45° and 45° relative to the plane perpendicular to the tool axis.
  • the tube moves rotationally and axially relative to the tool when the tool is used to cut the inner surface of the tube.
  • the relative rotation and relative axial movement between the tube and the tool causes the at least one cutting bit to protrude outwardly from the housing.
  • stopping the relative rotation and relative axial movement between the tube and the tool causes the at least one cutting bit to retract inwardly into the housing.
  • the cutting edge slices through ridges on an inner surface of the tube at angle between 20° and 50° to create a plurality of protrusions.
  • the lifting edge lifts the protrusions at an angle of inclination relative to the plane perpendicular to the longitudinal axis of the tube. In a more particular embodiment, the lifting edge lifts the protrusions at an angle between approximately -45° and 45° relative to the plane perpendicular to the longitudinal axis of the tube.
  • a pattern may be formed on the inner surface of the tube.
  • Protrusions are commonly used for this purpose.
  • One method of forming protrusions involves first forming ridges on the inner surface. The ridges are then cut to create ridge layers, which are subsequently lifted up to form protrusions. This cutting and lifting may be accomplished using tool 10.
  • tool 10 includes housing 12 and at least one cutting bit 28.
  • the cutting bits 28 are retractable within the housing 12.
  • Tool 10 preferably incorporates shaft 14, which may be connected to a rod (not shown).
  • the tool 10 includes multiple cutting bits 28.
  • the tool 10 includes at least four cutting bits 28, although only two are visible.
  • cutting bits 28 are held in place in part by ring 20. Ring 20 also holds the cutting bit close to the sliding plane of the shaft 14.
  • the tool 10 further includes a spring 24 for retracting the cutting bit(s)
  • the spring 24 may be a flat, disc or coil spring. As one with skill in the art will understand, any material that can be compressed and expanded, such as rubber may be used in place of spring 24.
  • Spring 24 is preferably separated from the cutting bits 28 by a washer 22, which allows the spring 24 to exert pressure evenly on the cutting bits 28 without sliding over the cutting bits 28.
  • Spacer 18 may be used to prevent pressure from coil spring 24 from damaging housing 12. Spacer 18 may be angled or slanted along the surface in contact with cutting bit 28. This feature assists in keeping cutting bit 28 in place and holds cutting bit 28 in close proximity to the sliding plane of the shaft 14. Screw16 may be used to secure tool 10 onto shaft 14.
  • Screw 16 is used to manipulate the maximum diameter the cutting bits 28 protrude from housing 12.
  • screw 16 is a finely threaded screw.
  • Screw 16 may serve as a way to adjust the maximum cutting bit diameter while the bits are fully extended.
  • Angled spacers 18 may be placed between screw 16 and cutting bit 28 so that screw 16 exerts pressure, but does not damage cutting bits 28.
  • Housing 12 protects cutting bits 28 when tool 10 is not in use. Additionally, housing 12 works with ring 20, spacer 18 and screw 16 to hold bits 28 in place. In some embodiments, housing 12 is comprised of two separate parts 56, 58. This allows easy accessibility to the individual tool components. It also allows different cutting bits 28 to be used in one tool 10. For example, cutting bit 28 with tips with a particular profile can be used for a period of time, then cutting bit 28 with tips for a different profile can be used in the same tool 10. When a two part housing 12 is used, cutting bit 28 can easily be replaced if it becomes worn or broken.
  • tool 10 may be used to cut through ridges and lift the resulting ridge layers to form protrusions.
  • Tool 10 includes cutting bits 28 that are retractable within housing 12.
  • Cutting bits 28 can be made from any material having the structural integrity to withstand metal cutting (e.g. steel, carbide, ceramic, etc.), but are preferably made of a carbide.
  • FIGS. 4A-C An embodiment of a cutting bit 28 that may be used with tool 10 is shown in Figs. 4A-C .
  • the cutting bit 28 shown in FIGS. 4A-C generally has an axis, two base walls 40, 42 and one or more side walls 44.
  • Tip 30 is formed on side walls 44 of cutting bit 28.
  • the tip 30 can be mounted or formed on any structure that can support the tip 30 in the desired orientation relative to the tube and such structure is not limited to that disclosed in FIGS. 4A-C .
  • each tip 30 need not be the same for tips 30 on a single cutting bit 28. Rather, tips 30 having different geometries to form protrusions having different shapes, orientations, and other geometries may be provided on cutting bit 28. Moreover, any number of cutting bits 28 may be used with tool 10 depending on the desired pitch P a,p of protrusions.
  • Each tip 30 of cutting bit 28 is formed by the intersection of planes A, B, and C.
  • the intersection of planes A and B form cutting edge 32 that cuts through ridges to form ridge layers.
  • Plane B is oriented at an angle ⁇ relative to a plane perpendicular to the tool axis (see FIG. 4A ).
  • Angle ⁇ is defined as 90 - ⁇ .
  • angle ⁇ is preferably between approximately 40° - 70° to allow cutting edge to slice through ridges at the desirable angle ⁇ between approximately 20° - 50°.
  • planes A and C form lifting edge 34 that lifts ridge layers upwardly to form protrusions.
  • Angle ⁇ 1 defined by plane C and a plane perpendicular to tool axis determines the angle of inclination ⁇ (the angle between a plane perpendicular to the longitudinal axis s of tube and the longitudinal axis of protrusions at which protrusions are lifted by lifting edge 34.
  • Angle ⁇ 1 angle ⁇ , and thus angle ⁇ 1 on cutting bit 28 can be adjusted to directly impact the angle of inclination ⁇ of protrusions.
  • the angle of inclination ⁇ (and angle ⁇ 1 ) is preferably the absolute value of any angle between approximately -45° to 45° relative to the plane perpendicular to the longitudinal axis s of tube 62.
  • protrusions can be aligned with the plane perpendicular to the longitudinal axis s of tube or incline to the left and right relative to the plane perpendicular to the longitudinal axis s of tube.
  • the tips 30 can be formed to have different geometries (i.e., angle ⁇ 1 may be different on different tips 30), and thus the protrusions within tube may incline at different angles (or not at all) and in different directions relative to the plane perpendicular to the longitudinal axis s of tube.
  • the physical dimensions of cutting bit 28 may be modified to impact the physical dimensions of resulting protrusions.
  • FIGS. 5 and 6 illustrate one possible manufacturing set-up for enhancing the surfaces of tube 62. These figures are in no way intended to limit the process by which tubes in accordance with this invention are manufactured, but rather any tube manufacturing process using any suitable equipment or configuration of equipment may be used.
  • the tubes 62 may be made from a variety of materials possessing suitable physical properties including structural integrity, malleability, and plasticity, such as, for example, copper and copper alloys, aluminum and aluminum alloys, brass, titanium, steel, and stainless steel.
  • FIGS. 5 and 6 illustrate three arbors 60 operating on tube 62 to enhance the outer surface of tube 62.
  • Each arbor 60 includes a tool set-up having finning disks 64 which radially extrude from one to multiple start outside fins having axial pitch P a,o .
  • the tool set-up may include additional disks, such as notching or flattening disks, to further enhance the outer surface of tube.
  • additional disks such as notching or flattening disks, to further enhance the outer surface of tube.
  • the embodiment shown includes only three arbors 60, fewer or more arbors 60 may be used depending on the desired outer surface enhancements. Note, however, that depending on the tube application, enhancements need not be provided on the outer surface of tube 62 at all.
  • a mandrel shaft 14 onto which mandrel 66 is rotatably mounted extends into tube 62.
  • Tool 10 also is mounted onto shaft 14.
  • Bolt or retaining screw 52 secures tool 10 in place.
  • Tool 10 is preferably locked in rotation with shaft 14 by any suitable means.
  • tube 62 In operation, tube 62 generally rotates as it moves through the manufacturing process. Tube wall moves between mandrel 66 and finning disks 64, which exert pressure on tube wall. Under pressure, the metal of tube wall flows into the grooves between the finning disks 64 to form fins on the exterior surface of tube 62.
  • Tool 10 uses the frictional forces of finning to advance cutting bits 28 from within housing 12.
  • arbors 60 When arbors 60 are used, pressure is exerted against tube walls. The friction created by the pressure and the movement of the tube 62 in relation to the tool 10 creates an axial force on spacer 18, which advances cutting bits 28 radially and compresses spring 24.
  • a desirable inner surface pattern includes ridges. After formation of ridges on inner surface of tube 62, tube 62 encounters tool 10 positioned adjacent and downstream mandrel 66. As explained previously, the cutting edge(s) of cutting bit 28 of tool 10 cuts through ridges to form ridge layers. Lifting edge(s) 34 of cutting bit 28 of tool 10 then lifts ridge layers to form protrusions.
  • tube 62 When protrusions are formed simultaneously with outside finning and tool 10 is fixed (i.e., not rotating or moving axially), tube 62 automatically rotates and has an axial movement.
  • tool 10 can also be rotated. Both tube 62 and tool 10 can rotate in the same direction or, alternatively, both tube 62 and tool 10 can rotate, but in opposite directions.
  • tool 10 should rotate in the same direction as tube 62 to obtain the desired pitch P a,p .
  • tool 10 should rotate in the opposite direction to tube 62 to obtain the desired pitch P a,p .
  • protrusions may be produced in a separate operation from finning using a tube with pre-formed inner ridges. This would generally require an assembly to rotate tool 10 or tube 62 and to move tool 10 or tube 62 along the tube axis.
  • a support is preferably provided to center tool 10 relative to the inner tube surface.
  • This formula is suitable when (1) the tube 62 moves only axially (i.e., does not rotate) and the tool 10 only rotates (i.e., does not move axially); (2) the tube 62 only rotates and the tool 10 moves only axially; (3) the tool 10 rotates and moves axially but the tube 62 is both rotationally and axially fixed; (4) the tube 62 rotates and moves axially but the tool 10 is both rotationally and axially fixed; and (5) any combination of the above.
  • tool 10 may also be used in a manufacturing set up without arbors.
  • tool 10 may incorporate cutting bits 28 that are manually exposed during finning.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Earth Drilling (AREA)
  • Making Paper Articles (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Ladders (AREA)

Claims (16)

  1. Werkzeug (10) zum Schneiden der Innenfläche eines Rohrs (62), umfassend:
    a. mindestens einen Schneideinsatz (28), der Folgendes umfasst:
    (i) eine Werkzeugachse;
    (ii) mindestens eine Spitze (30), die durch den Schnittpunkt mindestens einer ersten Ebene (A), einer zweiten Ebene (B) und einer dritten Ebene (C) gebildet wird;
    (iii) eine Schneidkante (32); und
    (iv) eine Hebekante (34); dadurch gekennzeichnet, dass das Werkzeug Folgendes umfasst:
    b. ein Gehäuse (12), das zum Unterbringen mindestens eines Teils des mindestens einen Schneideinsatzes ausgeführt ist;
    c. ein Abstandsstück (18), das zumindest teilweise im Gehäuse positioniert ist, wobei das Abstandsstück dazu ausgeführt ist, Druck an eine erste Fläche (42) des mindestens einen Schneideinsatzes anzulegen, um zu bewirken, dass mindestens ein Teil der mindestens einen Spitze des mindestens einen Schneideinsatzes aus dem Gehäuse ragt, wenn Kräfte auf das Abstandsstück ausgeübt werden; und
    d. eine Feder (24), die zumindest teilweise in dem Gehäuse positioniert ist, wobei die Feder dazu ausgeführt ist, sich auszudehnen, wenn die Kräfte nachlassen, um eine Ausdehnungskraft auf eine zweite Fläche (40) des mindestens einen Schneideinsatzes auszuüben und so ein Zurückziehen des mindestens einen Teils der mindestens einen Spitze in dem Gehäuse zu gestatten.
  2. Werkzeug nach Anspruch 1, wobei die Schneidkante (32) durch den Schnittpunkt der ersten und der zweiten Ebene (A, B) gebildet wird.
  3. Werkzeug nach Anspruch 1 oder 2, wobei die Hebekante (34) durch den Schnittpunkt der ersten und der dritten Ebene (A, C) gebildet wird.
  4. Werkzeug nach Anspruch 1, 2 oder 3, wobei die zweite Ebene (B) in einem Winkel zwischen ca. 40° und 70° bezüglich der senkrecht zu der Werkzeugachse verlaufenden Ebene ausgerichtet ist.
  5. Werkzeug nach Anspruch 4, wobei die zweite Ebene (B) in einem Winkel so ausgerichtet ist, dass die Schneidkante (32) dazu ausgeführt ist, in einem Winkel zwischen ca. 20° und 50° bezüglich der senkrecht zu der Werkzeugachse verlaufenden Ebene durch Rippen an einer Rohrfläche zu schneiden.
  6. Werkzeug nach einem vorhergehenden Anspruch, wobei die dritte Ebene (C) in einem Winkel zwischen ca. -45° und 45° bezüglich der senkrecht zu der Werkzeugachse verlaufenden Ebene ausgerichtet ist.
  7. Werkzeug nach einem vorhergehenden Anspruch, wobei die Schneidkante (32) dazu ausgeführt ist, in einem Winkel zwischen 20° und 50° durch Rippen an einer Innenfläche des Rohrs zu schneiden, um mehrere Vorsprünge zu erzeugen.
  8. Werkzeug nach Anspruch 7, wobei die Hebekante (34) dazu ausgeführt ist, die Vorsprünge bei ca. -45° und 45° bezüglich der senkrecht zu der Werkzeugachse verlaufenden Ebene anzuheben.
  9. Werkzeug nach einem vorhergehenden Anspruch, wobei das Rohr (62) dazu ausgeführt ist, sich drehend und axial bezüglich des Werkzeugs (10) zu bewegen, wenn das Werkzeug zum Schneiden der Innenfläche des Rohrs verwendet wird.
  10. Werkzeug nach Anspruch 9, wobei die relative Drehung und die relative Axialbewegung zwischen dem Rohr (62) und dem Werkzeug (10) bewirken, dass der mindestens eine Teil der mindestens einen Spitze (30) aus dem Gehäuse (12) ragt.
  11. Werkzeug nach Anspruch 10, wobei Anhalten der relativen Drehung und der relativen Axialbewegung zwischen dem Rohr (62) und dem Werkzeug (10) bewirken, dass der mindestens eine Teil der mindestens einen Spitze (30) in das Gehäuse (12) zurückgezogen wird.
  12. Verfahren zum Verbessern der Innenfläche eines Rohrs (62), umfassend:
    a. Befestigen eines Werkzeugs (10) nach Anspruch 1 an einer Welle (14),
    b. Positionieren des Werkzeugs in dem Rohr;
    c. Bewirken einer relativen Drehung und einer relativen Axialbewegung zwischen dem Rohr und dem Werkzeug;
    d. Schneiden zumindest teilweise durch mindestens eine entlang der Innenfläche des Rohrs ausgebildete Rippe zum Bilden von Rippenschichten; und
    e. Anheben der Rippenschichten zur Bildung von Vorsprüngen;
    wobei das Werkzeug Folgendes umfasst:
    i) mindestens einen Schneideinsatz (28), der Folgendes umfasst:
    eine Werkzeugachse;
    mindestens eine Spitze (30), die durch den Schnittpunkt mindestens einer ersten Ebene (A), einer zweiten Ebene (B) und einer dritten Ebene (C) gebildet wird;
    eine Schneidkante (32); und
    eine Hebekante (34); dadurch gekennzeichnet, dass das Werkzeug weiterhin Folgendes umfasst:
    (ii) ein Gehäuse (12), das zum Unterbringen mindestens eines Teils des mindestens einen Schneideinsatzes ausgeführt ist;
    (iii) ein Abstandsstück (18), das zumindest teilweise im Gehäuse positioniert ist, wobei das Abstandsstück dazu ausgeführt ist, Druck an eine erste Fläche (42) des mindestens einen Schneideinsatzes anzulegen, um zu bewirken, dass mindestens ein Teil der mindestens einen Spitze des mindestens einen Schneideinsatzes aus dem Gehäuse ragt, wenn Kräfte auf das Abstandsstück ausgeübt werden; und
    (iv) eine Feder (24), die zumindest teilweise in dem Gehäuse positioniert ist, wobei die Feder dazu ausgeführt ist, sich auszudehnen, wenn die Kräfte nachlassen, um eine Ausdehnungskraft auf eine zweite Fläche (40) des mindestens einen Schneideinsatzes auszuüben und so ein Zurückziehen des mindestens einen Teils der mindestens einen Spitze in dem Gehäuse zu gestatten.
  13. Verfahren nach Anspruch 12, wobei die relative Drehung und die relative Axialbewegung zwischen dem Rohr (62) und dem Werkzeug (10) bewirken, dass der mindestens eine Teil der mindestens einen Spitze (30) aus dem Gehäuse (12) ragt.
  14. Verfahren nach Anspruch 12 oder 13, wobei Anhalten der relativen Drehung und der relativen Axialbewegung zwischen dem Rohr (62) und dem Werkzeug (10) bewirken, dass der mindestens eine Teil der mindestens einen Spitze (30) in das Gehäuse (12) zurückgezogen wird.
  15. Verfahren nach einem der Ansprüche 12 - 14, wobei die Schneidkante (32) durch den Schnittpunkt der ersten und der zweiten Ebene (A, B) gebildet wird.
  16. Verfahren nach einem der Ansprüche 12 - 15, wobei die Hebekante (34) durch den Schnittpunkt der ersten und der dritten Ebene (A, C) gebildet wird.
EP05749473A 2004-05-13 2005-05-13 Zurückziehbares werkzeug zum aufziehen von rippen und verwendungsverfahren Active EP1766315B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05749473T PL1766315T3 (pl) 2004-05-13 2005-05-13 Chowane narzędzie do wykonywania występów i sposób jego wykorzystania

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US57085804P 2004-05-13 2004-05-13
US10/972,734 US7311137B2 (en) 2002-06-10 2004-10-25 Heat transfer tube including enhanced heat transfer surfaces
PCT/US2005/016963 WO2005114086A2 (en) 2004-05-13 2005-05-13 Retractable finning tool and method of using

Publications (3)

Publication Number Publication Date
EP1766315A2 EP1766315A2 (de) 2007-03-28
EP1766315A4 EP1766315A4 (de) 2009-06-24
EP1766315B1 true EP1766315B1 (de) 2010-07-07

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EP (1) EP1766315B1 (de)
JP (1) JP4928445B2 (de)
AT (1) ATE473411T1 (de)
CA (1) CA2566792A1 (de)
DE (1) DE602005022192D1 (de)
IL (1) IL178806A (de)
MX (1) MXPA06013048A (de)
PL (1) PL1766315T3 (de)
PT (1) PT1766315E (de)
TW (1) TWI291905B (de)
WO (1) WO2005114086A2 (de)

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Publication number Priority date Publication date Assignee Title
US20060112535A1 (en) * 2004-05-13 2006-06-01 Petur Thors Retractable finning tool and method of using
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WO2005114086A3 (en) 2006-03-30
PL1766315T3 (pl) 2010-11-30
DE602005022192D1 (de) 2010-08-19
EP1766315A2 (de) 2007-03-28
JP2007537045A (ja) 2007-12-20
ATE473411T1 (de) 2010-07-15
MXPA06013048A (es) 2006-12-20
TWI291905B (en) 2008-01-01
IL178806A0 (en) 2007-03-08
IL178806A (en) 2010-06-30
CA2566792A1 (en) 2005-12-01
WO2005114086A2 (en) 2005-12-01
PT1766315E (pt) 2010-09-28
EP1766315A4 (de) 2009-06-24
TW200607583A (en) 2006-03-01
JP4928445B2 (ja) 2012-05-09

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