EP1880135A1 - Connecting arrangement for coolant lines - Google Patents
Connecting arrangement for coolant linesInfo
- Publication number
- EP1880135A1 EP1880135A1 EP06707508A EP06707508A EP1880135A1 EP 1880135 A1 EP1880135 A1 EP 1880135A1 EP 06707508 A EP06707508 A EP 06707508A EP 06707508 A EP06707508 A EP 06707508A EP 1880135 A1 EP1880135 A1 EP 1880135A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- line end
- piece
- end piece
- coupling piece
- air conditioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
- F16L41/086—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe fixed with screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00571—Details of ducts or cables of liquid ducts, e.g. for coolant liquids or refrigerants
Definitions
- the invention relates to a connection arrangement for mobile refrigeration systems for connecting refrigerant pipes with other air conditioning components, in particular for the refrigerant CO 2 , from a first coupling piece movably connectable first coupler and a further air conditioning circuit component, wherein the first coupling piece and the other air conditioning circuit component so assembled by fastening means are that the first line end piece and the further air conditioning circuit component via a respective bore and radially extending sealing surfaces are interconnected, wherein between the sealing surfaces, a sealing ring is arranged and as fastening means a single, laterally offset from the sealing surfaces arranged screw is provided and that in Distance from the screw on the side facing away from the sealing surfaces, a non-compressible shaped body is arranged as a spacer between the coupling pieces.
- connection arrangement for refrigerant pipes of the type mentioned is disclosed.
- the line end pieces are firmly bonded, for example by soldering, firmly connected to the respective coupling pieces.
- the sealing surfaces are formed by the coupling pieces and are produced by machining.
- the heat input during soldering creates a heat distortion in the coupling pieces, which leads to changes in the sealing surfaces in shape and position.
- the dimensional fluctuations of the resulting gap between the connected coupling pieces are therefore very large and must be compensated by the flat gasket used to produce the required tightness.
- the process reliability of this procedure is problematic.
- the invention is therefore based on the object to improve the connection arrangement described such that a thermal distortion of the components no longer occurs.
- the first line end piece is passed through the bore of the first coupling piece and at its further climatic circuit component facing and protruding from the first coupling piece has a radially extending, produced by plastic deformation of the first line end chipless sealing surface, that the first line end in the region of the bore of the first coupling piece has a widening, such that the first coupling piece is fixed against rotation and immovable on the first line end piece and that the first coupling piece at the end of the further Klima Vietnameseonnekomponente the end of the bore facing the further air conditioning circuit component annular collar, wherein the annular collar of the further Klimaniklaufkomponente remote rear side of the radial sealing surface of the first line end piece is assigned and in fully assembled m Pressing the state on this back side presses the radial sealing surface of the first line end piece onto the sealing ring.
- This arrangement allows a positive and frictional connection of the first coupling piece with the first line end piece without a harmful heat input. Soldering or other thermal bonding methods are not required.
- the gap tolerance between the radial sealing surface of the first line end piece and the further air conditioning circuit component is smaller, so that the sealing ring has to compensate for less irregularities.
- the strength properties of the components are not negatively affected by heat input.
- the sealing ring is a metallic flat ring with circumferential bead.
- a metallic flat ring can be advantageously stick together when screwing the inventive connection assembly and is in this case particularly dense and resistant to subcritical or supercritical CO 2 .
- Such a metallic flat ring is particularly dense and resistant to the refrigerant R 744 and so-called PAG oils.
- conventional kausanord- the use of metallic flat rings as a sealing ring is not readily possible. In particular, a great deal of force must be used to compress the flat rings in order to achieve absolute tightness.
- connection arrangement according to the invention, however, such compression is simplified, since at least one of the sealing surfaces consists of the material of the line end piece, which is softer than the material of the coupling piece.
- This softer material offers by the possibility of relatively easy plastic deformability a high adaptation potential to a metallic sealing ring.
- a development of the invention provides that the sealing ring is inserted in a flat plastic cap, which is arranged between the sealing surfaces, wherein the plastic cap and the first coupling piece and the first line end piece are formed with its radial sealing surface such that the plastic cap before the screwing of the first coupling piece with the further air conditioning circuit component can be fastened easily between the sealing surfaces, in particular on the edge of the radial sealing surface of the first line end piece can be clipped.
- Such a plastic cap serves as a captive of the sealing ring, since the sealing ring is not fixed before the screw. Due to the plastic cap also a centering of the sealing ring is achieved on the sealing surface.
- the further Klimalcreislaufkomponente is composed of a second coupling piece and a second line end, wherein the second line end is passed through a bore of the second coupling piece and at its first coupling piece facing and protruding from the second coupling end a radially extending, has a non-cutting sealing surface produced by plastic deformation of the second line end piece, the second line end piece has an extension in the region of the bore of the second coupling piece, such that the second coupling piece is secured against rotation and immovable on the second line end piece and that the second coupling piece exhibits a connection with the first coupling piece at the end of the bore facing the first coupling piece having annular collar, wherein the annular collar of the first coupling piece facing away from the rear side of the radial sealing surface of the second line end piece is assigned and pressed in the assembled state on this back pressing the radial sealing surface of the second line end piece on the sealing ring.
- the line end pieces are arranged in alignment with one another according to a development of the invention.
- Fig. 1 is a schematic cross-sectional view of the invention
- FIG. 2 shows a detail enlargement of FIG. 1 and FIG. 3 shows an enlarged detail of the connection arrangement according to the invention with two line end sections
- the connecting arrangement 1 for refrigerant lines 2 shown in FIG. 1 consists of a first coupling piece 4 tightly connected to a first line end piece 3 and a further air conditioning circuit component 5.
- the first coupling piece 4 has a bore 6 through which the pipe end piece 3 is passed.
- the first line end piece 3 is widened in the region of the bore 6 by an amount not visible here, so that a press connection results between the first line end piece 3 and the first coupling piece 4.
- the coupling piece 4 and the other air conditioning circuit component 5 are clamped together by means of a screw 7.
- a non-compressible spacer 9 is arranged at a predetermined distance from the screw 7 and on the bore 6 opposite side of the screw 7.
- Fig. 2 is a detail enlargement of Fig. 1 is shown.
- the first line end piece 3 has at its the further air cycle component 5 facing and protruding from the first coupling piece 4 end 10 a radially extending, by plastic deformation of the first line end 3 without cutting generated sealing surface 11, which has a larger diameter than the non-cutting deformation Remainder of the first line end piece
- the first coupling piece 4 has at the end of the bore 6 facing the further air-conditioning circuit component 5 an annular collar 12 which is assigned to the further air-conditioning component 5, the annular collar 12 of the rear side 13 of the radial sealing surface 11 of the first line end piece facing away from the further air-conditioning cycle component 5 3 is assigned and pressing in the assembled state on this back 13 pressing the radial sealing surface 11 of the first line end piece 3 on a sealing ring 14.
- the sealing ring 14 is held by a plastic cap 15, which is clipped over the edge 16 of the radial sealing surface 11 of the first line end piece 3.
- the sealing ring 14 is pressed via the annular collar 12 through the first coupling piece 4 against the further air conditioning component 5, wherein the further air conditioning circuit component 5 in turn has a sealing surface 17 which is produced by machining.
- the spacer 9 ensures that the sealing surface 11 of the first line end piece and the sealing surface 17 of the further air conditioning circuit component 5 are approximately parallel. allel are aligned with each other and the force distribution on the sealing ring 14 is as even as possible.
- the first coupling piece 4 and the further air conditioning circuit component 5 are arranged relative to one another such that the first line end piece 3 is aligned with a bore 18 in the further air conditioning circuit component 5.
- FIG. 3 shows the connection arrangement 1 in a cut-out enlargement, in which the further air conditioning circuit component 5 is formed by a second coupling piece 20 with a second line end piece 21.
- the second coupling piece 20 has a bore 21, through which a second line end piece 22 is guided, wherein the connection between the second line end piece 21 and the second coupling piece 20 is formed as a press connection as shown in FIG.
- the second line end piece 22 has, at its end facing the first line end piece and protruding from the second coupling piece 20, a radially extending sealing surface 23 produced by plastic deformation of the second line end piece 22, whose diameter is greater than the rest of the second line end piece 22.
- the second coupling piece 20 has, at the end of the bore 21 facing the first line end piece 3, an annular collar 24 facing the first line end piece 22, the annular collar 24 being assigned to the rear side 25 of the radial sealing surface 23 of the second line end piece 22 facing away from the first line end piece 3 is and pressed in the assembled state on this back 25 pressing the radial sealing surface 23 of the second line end piece 22 on the sealing ring 14.
- the spacer 9 ensures that the sealing surface 11 of the first line end piece and the sealing surface 23 of the second line end piece 22 approximately parallel to aligned with each other and the force distribution on the sealing ring 14 is as even as possible.
- the first coupling piece 4 and the second coupling piece 20 are arranged to one another such that the first line end piece 3 is aligned with the second line end piece 22.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Gasket Seals (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005020259A DE102005020259A1 (en) | 2005-04-30 | 2005-04-30 | Connection arrangement for refrigerant pipes |
PCT/EP2006/002203 WO2006117039A1 (en) | 2005-04-30 | 2006-03-10 | Connecting arrangement for coolant lines |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1880135A1 true EP1880135A1 (en) | 2008-01-23 |
Family
ID=36282986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06707508A Withdrawn EP1880135A1 (en) | 2005-04-30 | 2006-03-10 | Connecting arrangement for coolant lines |
Country Status (5)
Country | Link |
---|---|
US (1) | US7712788B2 (en) |
EP (1) | EP1880135A1 (en) |
JP (1) | JP4885946B2 (en) |
DE (1) | DE102005020259A1 (en) |
WO (1) | WO2006117039A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008147990A1 (en) | 2007-05-23 | 2008-12-04 | New Brunswick Scientific Company, Inc. | Method and apparatus for making a fluid connection to a container |
DE102007047807B4 (en) | 2007-11-16 | 2012-11-08 | Visteon Global Technologies, Inc. | Connecting element for connecting two lines |
KR20090063992A (en) * | 2007-12-14 | 2009-06-18 | 현대자동차주식회사 | Mounting unit of oil cooler for automatic transmission |
FR2944573B1 (en) * | 2009-04-17 | 2015-10-23 | Valeo Systemes Thermiques | CONNECTING FLANGE FOR REFRIGERANT FLOW COMPONENT CIRCUIT COMPONENT |
DE202016100195U1 (en) * | 2016-01-15 | 2016-02-01 | Ti Automotive Engineering Centre (Heidelberg) Gmbh | Connecting arrangement for an air conditioner |
DE102016206459B3 (en) * | 2016-04-18 | 2017-10-05 | Continental Automotive Gmbh | Combination comprising a housing and a flange, and arrangement |
US10378686B2 (en) * | 2016-07-08 | 2019-08-13 | Hanon Systems | Plastic seal fitting |
US20200200307A1 (en) * | 2018-12-21 | 2020-06-25 | Hanon Systems | Metal seal fitting with tight bend technology |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3336055A (en) * | 1964-07-10 | 1967-08-15 | Pall Corp | Fluid line connections |
CA1042035A (en) * | 1976-04-15 | 1978-11-07 | Jackson A. Smith | Split flange adapter pad |
US5174612A (en) * | 1991-07-15 | 1992-12-29 | Senior Engineering Investments, B.V. | Vibration isolating sealing clamp for conduit structures |
ES2174008T3 (en) * | 1991-10-25 | 2002-11-01 | Nwd Int Inc | CONNECTOR FOR HYDRAULIC SOCKETS. |
DE4203334C2 (en) * | 1992-02-06 | 1994-06-01 | Forschungszentrum Juelich Gmbh | Flange pipe connection |
US5727304A (en) * | 1996-06-19 | 1998-03-17 | Eaton Corporation | Conduit fast connection |
DE19653908A1 (en) * | 1996-12-21 | 1998-06-25 | Daimler Benz Ag | Device for connecting a pipe bend |
US5779280A (en) * | 1997-02-28 | 1998-07-14 | Mark Iv Automotive Aktiebolag | Fluid connector |
JPH1137074A (en) * | 1997-07-22 | 1999-02-09 | Matsushita Electric Ind Co Ltd | Closed type motor-driven compressor |
JP3956495B2 (en) * | 1998-07-27 | 2007-08-08 | 株式会社デンソー | Piping joint and manufacturing method thereof |
US6386593B1 (en) * | 1999-10-29 | 2002-05-14 | Automotive Fluid Systems, Inc. | Dual-plane seal for fluid-tight conduit connection |
US6193283B1 (en) * | 1999-10-29 | 2001-02-27 | Automotive Fluid Systems, Inc. | Conduit and block connection indicator device |
US6454316B1 (en) * | 2000-05-25 | 2002-09-24 | Specialty Piping Components, Inc. | Seal ring retainer |
US6908117B1 (en) * | 2000-10-06 | 2005-06-21 | Hutchinson Fts, Inc. | Block-conduit connection alignment device |
US6834893B2 (en) * | 2001-11-01 | 2004-12-28 | Visteon Global Technologies, Inc. | Peanut fittings for CO2 air conditioning systems |
US6676167B2 (en) * | 2002-05-20 | 2004-01-13 | Visteon Global Technologies, Inc. | Air conditioning block fitting with two surface sealing |
DE10261887B4 (en) * | 2002-12-20 | 2005-05-12 | Visteon Global Technologies, Inc., Dearborn | pipe coupling |
ES2263857T3 (en) * | 2003-02-05 | 2006-12-16 | CONTITECH KUHNER GMBH & CIE. KG | UNION PROVISION FOR FRIDGE AGENT PIPES. |
DE10326958A1 (en) * | 2003-06-16 | 2005-01-13 | Eaton Fluid Power Gmbh | Pressure-resistant connection device |
JP4096832B2 (en) * | 2003-07-22 | 2008-06-04 | 株式会社デンソー | Piping joint for refrigeration cycle |
-
2005
- 2005-04-30 DE DE102005020259A patent/DE102005020259A1/en not_active Withdrawn
-
2006
- 2006-03-10 US US11/913,087 patent/US7712788B2/en not_active Expired - Fee Related
- 2006-03-10 EP EP06707508A patent/EP1880135A1/en not_active Withdrawn
- 2006-03-10 WO PCT/EP2006/002203 patent/WO2006117039A1/en not_active Application Discontinuation
- 2006-03-10 JP JP2008508095A patent/JP4885946B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2006117039A1 * |
Also Published As
Publication number | Publication date |
---|---|
US7712788B2 (en) | 2010-05-11 |
US20080197629A1 (en) | 2008-08-21 |
DE102005020259A1 (en) | 2006-11-09 |
JP2008540984A (en) | 2008-11-20 |
JP4885946B2 (en) | 2012-02-29 |
WO2006117039A1 (en) | 2006-11-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20071130 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WERNER, ALEX Inventor name: WILDERMUTH, ANDREAS Inventor name: PLISCHKE, WOLFGANG Inventor name: EISMANN, MIKE Inventor name: LESSER, KLAUS |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20091007 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20120828 |