WO1998019094A1 - Dispositif de raccordement pour des systemes hydrauliques et pneumatiques - Google Patents

Dispositif de raccordement pour des systemes hydrauliques et pneumatiques Download PDF

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Publication number
WO1998019094A1
WO1998019094A1 PCT/IT1997/000259 IT9700259W WO9819094A1 WO 1998019094 A1 WO1998019094 A1 WO 1998019094A1 IT 9700259 W IT9700259 W IT 9700259W WO 9819094 A1 WO9819094 A1 WO 9819094A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
seat
hole
walls
axis
Prior art date
Application number
PCT/IT1997/000259
Other languages
English (en)
Inventor
Valter Cremonini
Original Assignee
For S.P.A.
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 For S.P.A. filed Critical For S.P.A.
Priority to AU48830/97A priority Critical patent/AU4883097A/en
Publication of WO1998019094A1 publication Critical patent/WO1998019094A1/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
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
    • 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
    • F16L17/00—Joints with packing adapted to sealing by fluid pressure
    • F16L17/06—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between the end surfaces of the pipes or flanges or arranged in recesses in the pipe ends or flanges
    • 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
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means

Definitions

  • the present invention relates to an element able to accomplish the connection between pipes or between the latter and other organs and it concerns, in particular, a connector for systems for the passage of fluids, for instance for hydraulic systems.
  • Such connectors are usually employed to connect portions of pipes of various kinds and may be differently shaped according to their use.
  • connectors comprise fastening means of various types such as, for instance, threads provided on the connectors themselves, flanges fitted with seats to house bolts and the like, etc.
  • a seat extending over a full circumference obtained on the head surface of the connector itself and positioned coaxially to its inner cavity, seat which is destined to house an annular gasket called O-Ring.
  • O-Ring annular gasket
  • Maintaining the O-Ring in the seat may be relatively simple in those cases in which the portion of the connector involved in the coupling faces upward but, when it faces downward, or it is vertical, it becomes necessary to use auxiliary substances such as grease or adhesives to maintain the O-Ring in its seat during assembly operations.
  • auxiliary substances such as grease or adhesives to maintain the O-Ring in its seat during assembly operations.
  • the latter operating situation is more difficult in those cases in which the operator works "in the dark", i.e. has no direct vision of the parts to be connected.
  • the grease tends to melt, thus not assuring the proper positioning of the gasket in the seat.
  • the object of the present invention therefore is to eliminate the drawbacks mentioned above with a connector for fluid passage systems wherein the housing seat for the O-Ring is shaped in such a way as to hold the O-Ring itself stably within it.
  • the subject connector it is not necessary to insert the gasket on the connector at the moment the connector is fitted in place, but the association between O-Ring and connector may be performed beforehand.
  • the operation simplified but the presence of additional containers for the gaskets and the auxiliary fastening substances is eliminated as well.
  • Integrating the gasket with the connector body eliminates the need for specific orders or dedicated warehouse positions. As no specific skills are required for mounting, the operation is essentially safe and not affected by the operator's level of professional expertise.
  • a connector for hydraulic and pneumatic systems can be used to connect pipes or other parts of systems together.
  • the connector is indicated with the number 1 when an example pertaining to the object of the present patent application is shown, as in Figures 1, 3, 5, 7 and 9; when instead the figure pertains to a prior art connector, the connector is indicated with 1'.
  • Pipes and other system parts are not shown in the attached drawings since they are not the object of the present invention.
  • the connector is provided with suitable fastening means which may be constructed differently according to the use.
  • the fastening means may be constituted by the threading 5 presented by the connector itself.
  • screw or bolt means 6 may be provided, to be used in combination with flanges or semi-flanges; examples of this kind are shown in the Figures from 4 to 10.
  • the connector presents a hole 4 for the passage of a fluid (which in hydraulic systems will be hydraulic fluid) and a seat with circular development positioned coaxially with respect to the hole 4 of the connector.
  • the seat is indicated with 2' in the examples pertaining to prior art connectors and with 2 in those pertaining to the invention.
  • the seat 2 or 2' is obtained on the head surface 7 and it is destined to house an annular gasket 3 or O-Ring.
  • the seat 2 or 2' viewed according to a section coplanar to the axis X of the hole 4, has the shape of an open quadrilateral, with a base portion or base 20 or 20' essentially perpendicular to the axis X of the hole 4 and two walls 21, 22 or 21', 22' defined by rotational surfaces.
  • the seat presents a quadrilateral section with the side walls 21' and 22' defined by cylindrical surfaces which, in section, are essentially perpendicular with respect to the base 20': with a seat so shaped the O-Ring 3 positioned in the seat itself cannot be held, leading to the drawbacks mentioned in the previous part of the description.
  • at least one of the walls 21 at least one of the walls 21 ,
  • both walls 21 and 22 are tilted with respect to the base 20 and parallel to each other so as to define, in section, a parallelogram tilted inward, i.e. towards the axis X of the hole 4.
  • the wall 21 and 22 can be tilted, with respect to the pe ⁇ endicular with the base 20, by an angle ⁇ approximating 30°.
  • the wall 21 defines with the axis X, externally to the head surface 7, an angle ⁇ , whereas the wall 22 defines an angle ⁇ ': in the example shown these angles are equal and approximate 30°.
  • the angle ⁇ between base 20 and wall 21 approximates 60°, whereas the angle ⁇ between base 20 and wall 22 approximates 120°.

Landscapes

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

Abstract

L'invention concerne un dispositif de raccordement (1) pour des systèmes hydrauliques et pneumatiques du type présentant un orifice (4) pour le passage d'un fluide et un siège (2) avec un profil circulaire, qui est aménagé coaxialement par rapport à l'orifice du dispositif de raccordement et qui est destiné à recevoir un joint d'étanchéité annulaire (3). Le siège (2), vu suivant une couple coplanaire avec l'axe (X) de l'orifice (4), se présente comme un quadrilatère ouvert, avec une portion de base ou base (20), sensiblement perpendiculaire à l'axe (X) de l'orifice (4) et deux parois (21, 22) formant des surfaces de rotation, au moins une des parois (21, 22) étant inclinée par rapport à la base (20) et donc non perpendiculaire à celle-ci, de manière à former une dent (23) qui délimite le siège (2) et qui est capable de tenir le joint d'étanchéité (3) inséré de manière stable dans le siège (2).
PCT/IT1997/000259 1996-10-31 1997-10-23 Dispositif de raccordement pour des systemes hydrauliques et pneumatiques WO1998019094A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU48830/97A AU4883097A (en) 1996-10-31 1997-10-23 Connector for hydraulic and pneumatic systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96BO000554A IT1286740B1 (it) 1996-10-31 1996-10-31 Raccordo per impianti fluidodinamici
ITBO96A000554 1996-10-31

Publications (1)

Publication Number Publication Date
WO1998019094A1 true WO1998019094A1 (fr) 1998-05-07

Family

ID=11341687

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1997/000259 WO1998019094A1 (fr) 1996-10-31 1997-10-23 Dispositif de raccordement pour des systemes hydrauliques et pneumatiques

Country Status (3)

Country Link
AU (1) AU4883097A (fr)
IT (1) IT1286740B1 (fr)
WO (1) WO1998019094A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2941027A1 (fr) * 2009-01-13 2010-07-16 Legris Sa Element d'un circuit de transport de fluide a joint d'etancheite mobile

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288494A (en) * 1965-08-11 1966-11-29 Cajon Co Union coupling
CH615988A5 (en) * 1977-08-19 1980-02-29 Charles Gabus Connector for pipes
DE9015457U1 (de) * 1990-11-02 1991-04-25 Parker-Ermeto GmbH, 4800 Bielefeld Verbindungssystem
WO1993019312A1 (fr) * 1992-03-18 1993-09-30 Corrosion Control Corp. Joint isolant destine aux canalisations situees en environnement critique
WO1994024466A2 (fr) * 1993-04-06 1994-10-27 Parker-Hannifin Corporation Joint d'etancheite torique prisonnier a contact par surface plane, et procede pour sa fabrication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288494A (en) * 1965-08-11 1966-11-29 Cajon Co Union coupling
CH615988A5 (en) * 1977-08-19 1980-02-29 Charles Gabus Connector for pipes
DE9015457U1 (de) * 1990-11-02 1991-04-25 Parker-Ermeto GmbH, 4800 Bielefeld Verbindungssystem
WO1993019312A1 (fr) * 1992-03-18 1993-09-30 Corrosion Control Corp. Joint isolant destine aux canalisations situees en environnement critique
WO1994024466A2 (fr) * 1993-04-06 1994-10-27 Parker-Hannifin Corporation Joint d'etancheite torique prisonnier a contact par surface plane, et procede pour sa fabrication

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2941027A1 (fr) * 2009-01-13 2010-07-16 Legris Sa Element d'un circuit de transport de fluide a joint d'etancheite mobile
WO2010081958A3 (fr) * 2009-01-13 2010-10-07 Legris Sas Element d'un circuit de transport de fluide a joint d'etancheite mobile
CN102317668A (zh) * 2009-01-13 2012-01-11 帕克汉尼芬法国联合股份公司 具有移动密封件的流体输送回路元件
US8678444B2 (en) 2009-01-13 2014-03-25 Parker Hannifin France Sas Fluid coupling having a moving seal

Also Published As

Publication number Publication date
IT1286740B1 (it) 1998-07-17
ITBO960554A1 (it) 1998-05-01
AU4883097A (en) 1998-05-22
ITBO960554A0 (it) 1996-10-31

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