GB2256688A - Universal and telescopic pipe joint - Google Patents

Universal and telescopic pipe joint Download PDF

Info

Publication number
GB2256688A
GB2256688A GB9112951A GB9112951A GB2256688A GB 2256688 A GB2256688 A GB 2256688A GB 9112951 A GB9112951 A GB 9112951A GB 9112951 A GB9112951 A GB 9112951A GB 2256688 A GB2256688 A GB 2256688A
Authority
GB
United Kingdom
Prior art keywords
pipe
length
sealing ring
recess
pipe joint
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Withdrawn
Application number
GB9112951A
Other versions
GB9112951D0 (en
Inventor
Keith Ransom
Patrick John Toudic
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.)
Ford Motor Co
Original Assignee
Ford Motor Co
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 Ford Motor Co filed Critical Ford Motor Co
Priority to GB9112951A priority Critical patent/GB2256688A/en
Publication of GB9112951D0 publication Critical patent/GB9112951D0/en
Publication of GB2256688A publication Critical patent/GB2256688A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00Adjustable joints, Joints allowing movement
    • F16L27/12Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
    • F16L27/125Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement having longitudinal and rotary movement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844Mechanical joints
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00Adjustable joints, Joints allowing movement
    • F16L27/02Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/023Universal and rotating joints
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00Adjustable joints, Joints allowing movement
    • F16L27/02Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/026Universal and axially displaceable joints

Abstract

A pipe joint including a first length of pipe (10) having a part circular annular recess (11) formed around its circumference adjacent its end, a D-section split resilient sealing ring (12) located in the recess (11), the inner curved surface of the sealing ring (12) engaging the curved surface of the recess (11), the first length of pipe (10) and sealing ring (12) telescopically engaging the end portion of a second length of pipe (13) so that the sealing ring (12) is depressed into the recess (11) and the cylindrical surface of the sealing ring (12) engages the opposed surface of the second length of pipe (13). <IMAGE>

Description

PIPE JOINTS The present invention relates to pipe joints and in particular to pipe joints for exhaust systems, the pipe joints accommodating annular and axial misalignments of the components of the exhaust system.
Hitherto, it has been known to provide a pipe joint in which a flared portion at the end of one length of pipe engages a part-spherical surface of a sealing ring mounted on the end of a second length of pipe, the lengths of pipe being maintained in engagement with one another by means of tie bolts with spring loading means.
Such joints provide three rotational degrees of freedom, each accommodating an angular misalignment of typically up to 30. Such joints are not however capable of accommodating axial misalignments as this would result in separation of the flared end of said one length of pipe from the part-spherical surface of the sealing ring which would result in leakage from the exhaust pipe.
The present invention provides a pipe joint which will provide three rotational degrees of freedom and one linear degree of freedom along the axis of the pipe.
According to one aspect of the present invention a pipe joint comprises a first length of pipe, the first length of pipe having a part-circular recess formed around its circumference adjacent to the end of said first length of pipe, a D-section split resilient sealing ring being located in the recess formed on the first length of pipe, the curved surface of the sealing ring engaging the curved surface of the recess, the first length of pipe and sealing ring telescopically engaging the end portion of a second length of pipe so that the sealing ring is depressed into the recess and the flat surface of the sealing ring slidably engages the opposed surface of the second length of pipe.
The sealing ring of the present invention will provide a seal between the two lengths of pipe while providing two rotational degrees of freedom each accommodating angular misalignments typically up to 30, a third rotational degree of freedom permitting 3600 rotation of one length of pipe relative to the other. The sealing ring will also permit axial movement of one length of pipe relative to the other.
An embodiment of the invention is now described, by way of example only, with reference to the accompanying drawing which illustrates in part-sectional elevation a pipe joint in accordance with the present invention.
As illustrated in the accompanying drawing a first length of pipe 10 has a part-circular recess 11 formed around its circumference adjacent one end. The recess 11 may be formed by deforming the end of the pipe by means of rolling or any other suitable process. Alternatively, the recess 11 may be machined in a separate tubular element which may be secured around the pipe 10 in suitable manner.
A split sealing ring 12 is located in the recess 11. The split ring 12 is formed from resilient material, for example wrought stalite or stainless steel and is of Dsection, the curved surface of the sealing ring 12 engaging the curved surface of the recess 11.
The pipe 10 and sealing ring 12 are telescopically engaged in the end of a second pipe 13, so that the sealing ring 12 is compressed into the groove 11 and the flat surface of the sealing ring 12 slidably engages the inner surface of the pipe 13. With the first pipe 10 located in the second pipe 13 and the sealing ring 12 interposed therebetween, the gap between the ends of the split sealing ring 12 is preferably from 0.02mm to 0.15mm.
The end 14 of the pipe 13 is finally rolled over to prevent the two pipes from being separated, sufficient clearance being left between the end 14 of pipe 13 and pipe 10, to permit rotation of one pipe relative to the other of up to 30 in mutually perpendicular axial planes.
The pipes 10 and 13 are also free to rotate and slide axially relative to one another.
The pipe joint described above may typically be used to connect the various components of an exhaust system, for example pipes, silencer boxes and catalytic converters to one another, so that the orientation of one component relative to the other may be adjusted to appropriately locate each component with respect to the vehicle. In such exhaust systems, the first and second pipes of the pipe joint may be formed by the end pipes of the silencer boxes or catalytic converters. The joint will primarily provide for adjustment of one component relative to another while the exhaust system is initially being fitted to the vehicle or replacement parts are being fitted. After initial running of the engine any small leakage paths past the sealing ring will become sooted up to provide a good seal.
While in the above embodiment the sealing ring has been described as being of D-section, this is intended to cover a sealing ring of any section having a circular face which will engage the complementary circular surface of the groove to permit rotation in the axial planes, and a flat face for engagement of the opposed surface of the second pipe.

Claims (7)

1. A pipe joint comprising a first length of pipe, the first length of pipe having a part-circular recess formed around its circumference adjacent to the end of said first length of pipe, a D-section split resilient sealing ring being located in the recess formed on the first length of pipe, the curved surface of the sealing ring engaging the curved surface of the recess, the first length of pipe and sealing ring telescopically engaging the end portion of a second length of pipe so that the sealing ring is depressed into the recess and the flat surface of the sealing ring slidably engages the opposed surface of the second length of pipe.
2. A pipe joint according to Claim 1 in which the partcircular recess is formed by deforming the end of the first length of pipe.
3. A pipe joint according to Claim 1 in which the partcircular recess is formed in a tubular element which is secured to the end of the first length of pipe.
4. A pipe joint according to any one of Claims 1 to 3 in which the sealing ring is made from wrought stalite or stainless steel.
5. A pipe joint according to any one of the preceding claims in which the end of the second length of pipe is rolled over towards the first length of pipe, so as to prevent the pipes from being separated.
6. A pipe joint substantially as described herein, with reference to and as shown in the accompanying drawing.
7. An exhaust system comprising a plurality of components, at least two of the components being interconnected by a pipe joint as claimed in any one of Claims 1 to 6.
GB9112951A 1991-06-15 1991-06-15 Universal and telescopic pipe joint Withdrawn GB2256688A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9112951A GB2256688A (en) 1991-06-15 1991-06-15 Universal and telescopic pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9112951A GB2256688A (en) 1991-06-15 1991-06-15 Universal and telescopic pipe joint

Publications (2)

Publication Number Publication Date
GB9112951D0 GB9112951D0 (en) 1991-08-07
GB2256688A true GB2256688A (en) 1992-12-16

Family

ID=10696751

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9112951A Withdrawn GB2256688A (en) 1991-06-15 1991-06-15 Universal and telescopic pipe joint

Country Status (1)

Country Link
GB (1) GB2256688A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19528230A1 (en) * 1995-08-01 1997-02-06 Walu Labortechnik Gmbh Telescopic tube with outer and inner tubes - has tubes moving relative to each other and support ring inserted in inner tube
GB2384281A (en) * 2002-01-11 2003-07-23 Perkinelmer Inc A Universal Slide Joint
JP2013194870A (en) * 2012-03-22 2013-09-30 Nisshin Steel Co Ltd Method of connecting metal tube
DE202014101833U1 (en) 2014-04-17 2014-05-06 vonRoll infratec(investment) AG Sealing unit for a pipe arrangement
CN104595605A (en) * 2012-08-20 2015-05-06 刘碰 Stainless steel telescopic pipeline
CN104847987A (en) * 2015-05-27 2015-08-19 何远东 Telescopic fluid pipe
FR3030673A1 (en) * 2014-12-19 2016-06-24 Airbus Operations Sas DEVICE FOR CONNECTING TWO CONDUITS COMPRISING A CONFIGURED SEALING SEAL TO LIMIT THE RISK OF DAMAGE TO THE SAID SEAL
WO2016188407A1 (en) * 2015-05-27 2016-12-01 何远东 Telescoping fluid pipe
GB2552060A (en) * 2016-06-15 2018-01-10 Jaguar Land Rover Ltd Vehicle exhaust system
US10036503B2 (en) * 2015-04-13 2018-07-31 United Technologies Corporation Shim to maintain gap during engine assembly
CN111089205A (en) * 2019-12-26 2020-05-01 四川东方龙源动力设备有限公司 Rigid hollow rotating head

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB590003A (en) * 1945-04-09 1947-07-04 Solar Aircraft Co Flexible exhaust line joint
GB1153500A (en) * 1966-10-28 1969-05-29 Cross Mfg Co 1938 Ltd Improvements in and relating to Pipe-Joints
GB2156932A (en) * 1984-03-30 1985-10-16 Iracroft Ltd Ball joint pipe coupling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB590003A (en) * 1945-04-09 1947-07-04 Solar Aircraft Co Flexible exhaust line joint
GB1153500A (en) * 1966-10-28 1969-05-29 Cross Mfg Co 1938 Ltd Improvements in and relating to Pipe-Joints
GB2156932A (en) * 1984-03-30 1985-10-16 Iracroft Ltd Ball joint pipe coupling

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19528230C2 (en) * 1995-08-01 2002-08-14 Walu Labortechnik Gmbh telescopic tube
DE19528230A1 (en) * 1995-08-01 1997-02-06 Walu Labortechnik Gmbh Telescopic tube with outer and inner tubes - has tubes moving relative to each other and support ring inserted in inner tube
US6709023B2 (en) 2002-01-11 2004-03-23 Perkinelmer Inc. Flexible slide joint
GB2384281B (en) * 2002-01-11 2005-03-23 Perkinelmer Inc Flexible Slide Joint
GB2384281A (en) * 2002-01-11 2003-07-23 Perkinelmer Inc A Universal Slide Joint
JP2013194870A (en) * 2012-03-22 2013-09-30 Nisshin Steel Co Ltd Method of connecting metal tube
CN104595605A (en) * 2012-08-20 2015-05-06 刘碰 Stainless steel telescopic pipeline
DE202014101833U1 (en) 2014-04-17 2014-05-06 vonRoll infratec(investment) AG Sealing unit for a pipe arrangement
US10502346B2 (en) 2014-12-19 2019-12-10 Airbus Operations Sas Connection device of two pipes, comprising a seal which is configured to limit the risks of damaging the seal
FR3030673A1 (en) * 2014-12-19 2016-06-24 Airbus Operations Sas DEVICE FOR CONNECTING TWO CONDUITS COMPRISING A CONFIGURED SEALING SEAL TO LIMIT THE RISK OF DAMAGE TO THE SAID SEAL
US10036503B2 (en) * 2015-04-13 2018-07-31 United Technologies Corporation Shim to maintain gap during engine assembly
CN104847987A (en) * 2015-05-27 2015-08-19 何远东 Telescopic fluid pipe
WO2016188407A1 (en) * 2015-05-27 2016-12-01 何远东 Telescoping fluid pipe
GB2552060A (en) * 2016-06-15 2018-01-10 Jaguar Land Rover Ltd Vehicle exhaust system
GB2552060B (en) * 2016-06-15 2020-03-18 Jaguar Land Rover Ltd Vehicle exhaust system
CN111089205A (en) * 2019-12-26 2020-05-01 四川东方龙源动力设备有限公司 Rigid hollow rotating head
CN111089205B (en) * 2019-12-26 2021-06-29 四川东方龙源动力设备有限公司 Rigid hollow rotating head

Also Published As

Publication number Publication date
GB9112951D0 (en) 1991-08-07

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)