WO2007010571A1 - Clamp-connection hose for a fluid feed circuit in a motorvehicle - Google Patents
Clamp-connection hose for a fluid feed circuit in a motorvehicle Download PDFInfo
- Publication number
- WO2007010571A1 WO2007010571A1 PCT/IT2005/000432 IT2005000432W WO2007010571A1 WO 2007010571 A1 WO2007010571 A1 WO 2007010571A1 IT 2005000432 W IT2005000432 W IT 2005000432W WO 2007010571 A1 WO2007010571 A1 WO 2007010571A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hose
- hose according
- end portion
- clamp
- tubular portion
- Prior art date
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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/18—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses characterised by the use of additional sealing 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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
- F16L33/207—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
- F16L33/2071—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member
Definitions
- the present invention concerns a clamp-connection hose for a fluid feed circuit connected to an internal combustion engine of a motor vehicle, for example for a fuel circuit or a cooling fluid circuit inside an engine compartment of the motor vehicle.
- L5 conduit having a free end portion that may be connected by means of a clamp to a tubular element inserted by radial interference in the free portion itself and carried for example by a wall of the fuel pump inside the engine compartment .
- the rubber conduit is flexible so that it can adapt during assembly to the narrow bulk limits imposed inside the engine compartment and it also presents a second end portion axially opposite the first free portion and suited to be connected to
- the coupling with radial interference generally used for the connection to a rubber conduit comprises a 30 cylindrical tubular wall coming out of a wall of the pump and a conical ridge or ogive, located on a free edge of the tubular wall and defined by a conical surface diverging towards the wall of the pump.
- the aim of the present invention is to devise a clamp- 5 connection hose for a circuit of a motor vehicle, particularly for use inside the engine compartment, which is interchangeable with those of the prior art and free from the drawbacks mentioned above .
- FIG. 1 is a side view of a clamp-connection hose according to the present invention.
- figure 2 is a section of figure 1 along the line II-II in figure 1;
- figure 3 is and enlarged section of a detail in figure 2.
- numeral 1 indicates a clamp-connection hose for a fluid feed circuit inside an engine compartment of a motor vehicle, for example for a fuel circuit, comprising a flexible cylindrical side wall 2, a rubber bush 3 housed radially inside an end portion 4 integral with the cylindrical wall 2
- cylindrical wall 2 presents a longitudinal
- 35 axis A is made of a thermoplastic material, for example a material with a polyamide base, which is suitably pre-shaped to follow a broken line so as to adapt better to the size of the components that surround the engine.
- the end portion 4 is coaxial with the axis A and has a diameter larger than that of the cylindrical wall 2.
- the end portion 4 also defines a ring-shaped bead 7 coming out towards the outside of the pipe 1 and defining a corresponding ring- shaped cavity 8 facing towards the axis A.
- the rubber bush 3 is coaxial with the axis A and comprises a tubular portion 9 cooperating with the end portion 4 and a lip edge 10, and it is made of HNBR or NBR to resist petrol.
- the lip edge 10 is located at one axial end of the tubular portion 9 and it is folded towards the outside thus defining an axial abutment for an edge 14 of the end portion 4.
- tubular portion 9 is radially defined by a contact surface 15 cooperating with the end portion 4 and by a contact surface 16 cooperating with the coupling insert 5.
- the contact surface 15 defines a ring-shaped rib 17 housed in the ring-shaped cavity 8 and also defining the abutment position of the edge 14 against the lip edge 10.
- the contact surface 15 also defines at least one ring-shaped ridge 29 cooperating against the end portion 4.
- the contact surface 16 defines a plurality of radial ridges 18a, 18b, 18c facing towards the axis A and defined by respective conical surfaces converging in the direction from the lip edge 10 to the tubular portion 9.
- the ridges 18a, 18b are adjacent and axially located between the lip edge 10 and the ring-shaped rib 17; at the opposite end of the ridges 18a, 18b, the contact surface 16 defines a cylindrical seat 19 and the ridge 18c is adjacent to the - -
- the coupling insert 5 has an internal diameter equal to that of the cylindrical wall 2 to avoid localised pressure drops and it integrally comprises a fixing portion 20 cooperating by radial interference against the radial ridges 18a, 18b, 18c inside the tubular portion 9 and a collar 21 striking axially against the lip edge.
- the fixing portion 20 presents a profile defined by a cylindrical portion 30 and a conical or ogival ridge 23, or diverging towards the collar 21 and cooperating by radial interference with the tubular portion 9 inside the cylindrical seat 19.
- the hose 1 is inserted on the fixing portion 20 and the insertion of the rubber bush 3 is assisted by the orientation of the conic formation of the ridges 18a, 18b, 18c. Moreover the rubber bush 3 is soft and allows water- tightness and adaptation to the profile of the fixing portion 20.
- the clamp 6 In operating position, the clamp 6 is located adjacent to the ring-shaped bead 7 on the opposite side of the edge 14.
- the ring-shaped bead 7 defines a further axial restraint of the rubber bush 3 on the end portion 4 and a reference for positioning the clamp 6 at a correct axial distance from the edge 14.
- the conical ridge 23 is housed in the cylindrical seat 19 and the cylindrical portion 30 of the tubular portion 9 compresses the ring-shaped ridge 29, axially located between the ring-shaped rib 17 and the cylindrical seat 19, against a cylindrical surface of the end portion 4 thus realising a fluid-tight seal.
- the clamp 6 is opened and the conical ridge 23 cooperates with the ridges 18a, 18b, 18c defining an extraction load higher than the insertion load.
- the hose 1 is realised in a single thermoplastic conduit eliminating the rubber portion and the relevant intermediate connection and decreasing the production costs.
- the presence of the rubber bush 3 allows a hose of thermoplastic material to be connected to an ogival connecting element by means of a clamp, maintaining adequate fluid tightness. In this way the hose 1 is interchangeable with hoses of the prior art without the need to change the ogival connecting element.
- the hose 1 may be easily shaped to follow complicated paths and the flexibility of the cylindrical wall 2 combined with the clamp connection allows high adaptability to the overall dimensions and easy of assembly inside the engine compartment .
- the ring-shaped bead 7 allows a rapid positioning of the clamp 6 at an axial distance from the edge 14 contemplated by the regulations, further simplifying assembly.
- the assembly is also simplified by the fact that the lip edge 10 defines an axial abutment and prevents the rubber bush 3 from sliding towards the cylindrical wall 2 when pulled along during the insertion on the fixing portion 20.
- the fixing portion 20 having the conical ridge 23 is carried by a wall of the fuel pump inside the engine compartment.
- the hose 1 with an insert comprising on opposite sides a first shaped portion, for example in the shape of an upside-down pine, for connection with another hose and a fixing portion having a conical ridge similar to the one previously described and therefore suitable for clamp-connection to the hose 1.
- end portion 4 it is also possible, in low pressure applications, for the end portion 4 to be cylindrical and not present the ring-shaped bead 7.
- end portion 4 it is possible to provide a pair of ring-shaped beads 7 suitably distanced in an axial direction to define a seat for assembly of the clamp 6.
- thermoplastic material of the hose may also have a polyester base and the cylindrical wall 2 and the end portion 4 may be made either from a single-layer hose or from a multilayer hose having at least one layer of thermoplastic material .
- the material of the rubber bush 3 must be chosen in order to avoid leaks of the conveyed fluid, for example if the fluid transported has a water base EPDM may be used and if high temperature uses are necessary a fluorinated elastomer may be used.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Supports For Pipes And Cables (AREA)
- Fuel-Injection Apparatus (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005800515859A CN101341362B (en) | 2005-07-22 | 2005-07-22 | Clamp connecting flexible pipe for liquid conveying line in autobicycle |
US11/996,389 US7604260B2 (en) | 2005-07-22 | 2005-07-22 | Clamp-connection hose for a fluid feed circuit in a motorvehicle |
AT05778672T ATE425405T1 (en) | 2005-07-22 | 2005-07-22 | CLAMP CONNECTION HOSE FOR FLUID SUPPLY CIRCUIT IN A MOTOR VEHICLE |
JP2008522182A JP2009503372A (en) | 2005-07-22 | 2005-07-22 | Clamped hose used for fluid supply circuit in automobile |
DE602005013311T DE602005013311D1 (en) | 2005-07-22 | 2005-07-22 | CLAMP CONNECTION HOSE FOR FLUID INTAKE CIRCUIT IN A MOTOR VEHICLE |
PCT/IT2005/000432 WO2007010571A1 (en) | 2005-07-22 | 2005-07-22 | Clamp-connection hose for a fluid feed circuit in a motorvehicle |
EP05778672A EP1907743B1 (en) | 2005-07-22 | 2005-07-22 | Clamp-connection hose for a fluid feed circuit in a motorvehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IT2005/000432 WO2007010571A1 (en) | 2005-07-22 | 2005-07-22 | Clamp-connection hose for a fluid feed circuit in a motorvehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007010571A1 true WO2007010571A1 (en) | 2007-01-25 |
WO2007010571A8 WO2007010571A8 (en) | 2007-11-08 |
Family
ID=35999507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IT2005/000432 WO2007010571A1 (en) | 2005-07-22 | 2005-07-22 | Clamp-connection hose for a fluid feed circuit in a motorvehicle |
Country Status (7)
Country | Link |
---|---|
US (1) | US7604260B2 (en) |
EP (1) | EP1907743B1 (en) |
JP (1) | JP2009503372A (en) |
CN (1) | CN101341362B (en) |
AT (1) | ATE425405T1 (en) |
DE (1) | DE602005013311D1 (en) |
WO (1) | WO2007010571A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010060945A1 (en) * | 2008-11-27 | 2010-06-03 | Mann+Hummel Gmbh | Plastic hollow piece |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100253066A1 (en) * | 2009-04-02 | 2010-10-07 | Victaulic Company | Crimp-Type Coupling, Crimping Tool and Method of Crimping |
EP2947194B1 (en) * | 2014-05-22 | 2018-09-05 | Schlemmer Gmbh | Coupling assembly for a domestic appliance, device for a domestic appliance and domestic appliance |
US11708923B2 (en) * | 2020-09-01 | 2023-07-25 | Carefusion 303, Inc. | Tubing retention device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2733941A (en) * | 1956-02-07 | Flexible hose couplings | ||
US4963133A (en) * | 1987-12-31 | 1990-10-16 | Pharmacia Deltec, Inc. | Catheter attachment system |
EP1055860A2 (en) * | 1999-05-26 | 2000-11-29 | McKechnie Components Limited | Improvements in or relating to pipe joints |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US602617A (en) * | 1898-04-19 | Charles h | ||
US1235876A (en) * | 1916-10-24 | 1917-08-07 | Davis Bournonville Co | Hose connection. |
US4212487A (en) * | 1978-11-17 | 1980-07-15 | Hydrasearch Co. Inc. | Hose coupling |
JPS6118305Y2 (en) * | 1980-05-02 | 1986-06-03 | ||
JPH017908Y2 (en) * | 1981-01-28 | 1989-03-02 | ||
JPH0413486Y2 (en) * | 1987-02-24 | 1992-03-30 | ||
US5261706A (en) * | 1987-06-23 | 1993-11-16 | Proprietary Technology, Inc. | Apparatus for attaching a hose to a fitting |
US5868435A (en) * | 1987-06-23 | 1999-02-09 | Proprietary Technology, Inc. | Apparatus for and method of attaching conduits to a fitting |
US5388870A (en) * | 1987-06-23 | 1995-02-14 | Proprietary Technology, Inc. | Apparatus for and method of attaching hoses and tubes to a fitting |
JPH0619901Y2 (en) * | 1989-02-28 | 1994-05-25 | 株式会社土屋製作所 | Pipe joint structure |
EP0440564B1 (en) * | 1990-02-02 | 1993-01-27 | Etablissements CAILLAU | Device for connecting a hose end to a rigid pipe end |
JPH03124087U (en) * | 1990-03-30 | 1991-12-17 | ||
JP3186127B2 (en) * | 1991-11-01 | 2001-07-11 | 株式会社デンソー | Hose fittings |
DE19520195A1 (en) * | 1995-06-01 | 1996-12-05 | Grohe Kg Hans | Sanitary hose, method and device for its manufacture |
DE19607630C1 (en) * | 1996-02-29 | 1997-07-31 | Hewing Gmbh | Press fitting for connecting a pipe |
US6598906B2 (en) * | 2001-02-27 | 2003-07-29 | Dana Corporation | Fluid couplings |
US7066497B2 (en) * | 2003-11-07 | 2006-06-27 | Wolfgang F. Fullbeck | Fitting for a flexible metal hose |
-
2005
- 2005-07-22 JP JP2008522182A patent/JP2009503372A/en active Pending
- 2005-07-22 US US11/996,389 patent/US7604260B2/en active Active
- 2005-07-22 EP EP05778672A patent/EP1907743B1/en active Active
- 2005-07-22 DE DE602005013311T patent/DE602005013311D1/en active Active
- 2005-07-22 AT AT05778672T patent/ATE425405T1/en not_active IP Right Cessation
- 2005-07-22 WO PCT/IT2005/000432 patent/WO2007010571A1/en active Application Filing
- 2005-07-22 CN CN2005800515859A patent/CN101341362B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2733941A (en) * | 1956-02-07 | Flexible hose couplings | ||
US4963133A (en) * | 1987-12-31 | 1990-10-16 | Pharmacia Deltec, Inc. | Catheter attachment system |
EP1055860A2 (en) * | 1999-05-26 | 2000-11-29 | McKechnie Components Limited | Improvements in or relating to pipe joints |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010060945A1 (en) * | 2008-11-27 | 2010-06-03 | Mann+Hummel Gmbh | Plastic hollow piece |
Also Published As
Publication number | Publication date |
---|---|
WO2007010571A8 (en) | 2007-11-08 |
US20080309082A1 (en) | 2008-12-18 |
CN101341362A (en) | 2009-01-07 |
EP1907743A1 (en) | 2008-04-09 |
US7604260B2 (en) | 2009-10-20 |
JP2009503372A (en) | 2009-01-29 |
ATE425405T1 (en) | 2009-03-15 |
EP1907743B1 (en) | 2009-03-11 |
CN101341362B (en) | 2010-07-28 |
DE602005013311D1 (en) | 2009-04-23 |
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