GB2402962A - Support harness clip assembly - Google Patents

Support harness clip assembly Download PDF

Info

Publication number
GB2402962A
GB2402962A GB0314155A GB0314155A GB2402962A GB 2402962 A GB2402962 A GB 2402962A GB 0314155 A GB0314155 A GB 0314155A GB 0314155 A GB0314155 A GB 0314155A GB 2402962 A GB2402962 A GB 2402962A
Authority
GB
United Kingdom
Prior art keywords
hydraulic pipe
shape
duct
assembly
loom
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Withdrawn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
GB0314155A
Other versions
GB0314155D0 (en
Inventor
Christopher Wright
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB0314155A priority Critical patent/GB2402962A/en
Publication of GB0314155D0 publication Critical patent/GB0314155D0/en
Publication of GB2402962A publication Critical patent/GB2402962A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/32—Arrangement, mounting, or driving, of auxiliaries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/22—Fuel supply systems
    • F02C7/222—Fuel flow conduits, e.g. manifolds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing 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

Abstract

An assembly for connecting relatively moveable parts of a gas turbine engine exhaust duct, wherein the duct is bendable between a first shape and a second, more linear, shape. The assembly comprises a first eIement 20 and a second element 24 joined at at least two discrete locations wherein the second element is longer than the first element and means (eg fig 5) are provided which space the second element apart from the first element between the mounting points when the duct is in the second shape.

Description

SUPPORT HARNESS CLIP ASSEMBLY
The present invention provides an assembly for connecting relatively moveable parts of a gas turbine engine exhaust nozzle. In particular the present invention provides a combined hydraulic pipe and attached wiring loom for linking componentry mounted on adjacent relatively rotatable paths of a gas turbine engine exhaust nozzle.
For ease of access and consideration of space, hydraulic lines and wiring looms are mounted unprotected to the outside of gas turbine engines. To reduce weight, both the hydraulic lines and wiring looms may share brackets. The hydraulic lines and wiring looms are prone to chafing where the end points of the hydraulic lines and wiring looms are moveable relative to one another. This is particularly problematic as the pipes and loom must be of a soft material to ensure flexibility. As a consequence it is necessary to mount the pipes and looms separately from one another in this region, incurring a cost and weight penalty and complicating manufacture and maintenance of the gas turbine engine.
It is an object of the present invention to provide improved mounting means which addresses the problems outlined above.
According to the present invention there is provided an assembly for connecting relatively moveable parts of a gas turbine engine exhaust duct comprising a first flexible element which is bendable between a first arcuate shape and a second more linear shape, and a second flexible element which is attached to the first flexible element at at least two discrete locations, wherein the second element is longer than the first element and means are provided which space the second element apart from the first element between mounting points when it is in the second shape.
The invention will now be described in further detail with reference to the accompanying drawings in which: - 2 Figure 1 illustrates, schematically, a vectorable exhaust duct for a gas turbine engine in a first configuration; Figure 2 illustrates, schematically, the duct of Figure 1 in a second configuration; Figure 3 illustrates in more detail a hydraulic pipe and wiring loom connection between components attached to the nozzle of Figures 1 and 2 in the first configuration; Figure 4 illustrates the same hydraulic pipe and wiring loom connection in the second configuration; Figure 5 illustrates a mounting clip used for attaching the wiring loom and hydraulic pipe of Figure 4; and Figure 6 illustrates of further embodiment for the mounting clip of Figure 5.
Turning to Figure 1, a vectorable exhaust duct 2 comprises a first duct piece 4 which abuts a second duct piece 6 at a first swivelling joint 8 at an angle of approximately 30 to the axis of the duct 2. The second duct piece 6 abuts a third duct piece 10 at a second swivelling joint 12 at an angle of approximately 30 to the axis of the duct 2 and an angle of 60 to the first swivelling joint 8.
The duct pieces 4,6,10 are relatively rotatable at the joints such that the duct can be "bent" through approximately 90 as illustrated in Figure 2. The relative movement of the duct pieces 4,6,10 is driven by motors 14,16 hydraulically powered via hydraulic pipes 18,20 and controlled by electrical command via electrical wires 22,24.
The distance between the hydraulic motor 14 attached to the first exhaust duct piece 4 and the second hydraulic motor 16 attached to the second exhaust duct piece 6 varies as the ducts 4,6,10 are relatively related. In consequence the hydraulic pipe 20 between them and electrical loom 24 must be sufficiently flexible to move from the first position shown in Figure 1, in which the hydraulic pipe is in a first arcuate in shape and 3 the second position shown in Figure 2 in which the hydraulic pipe is in a second, more linear shape.
The relationship between the wiring loom 24 and hydraulic pipe 20 is more readily understood if reference is made to Figures 3 and 4. Figure 3 illustrates the wiring loom 24 and hydraulic pipe 20 in the first arcuate shape.
The hydraulic pipe 20 forms an arc of substantially constant radius. The wiring loom 24 is mounted to the hydraulic pipe at at least two discrete locations 26 to form an assembly. The wiring loom 245 is longer than the hydraulic pipe 20 between the at least two discrete locations such that the loom 24 is able to transcribe a radius greater than the hydraulic pipe 20, thereby not substantially effecting the flexibility of the hydraulic pipe 20.
When the assembly is in the second position illustrated in Figure 4, the hydraulic pipe is substantially linear. The wiring loom 24, because of its greater length, transcribes arcs between the mounting points 26 on the hydraulic pipe 20.
In order to ensure that the extra length of the wiring loom and concomitant slack does not lead to chafing, the mounting points 26 use brackets 27, shaped to space the wiring loom 24 from the hydraulic pipe 20.
Turning to figure 5, the bracket 27 comprises a first central element 28 which has a first annular section 30 of sufficient diameter to enclose the hydraulic pipe 20. This annular section is fixed about the hydraulic pipe by a clamping mechanism (not shown). The central element 28 further comprises a second annular section 32 provided immediately adjacent the first annular section, of sufficient diameter to enclose the wiring loom 24.
Again the second annular section 32 is fixed about the wiring loom by a damping mechanism (not shown). To either side of the central element 28 along the axis of the pipe 20 and loom 24, there are provided side elements 34,36. These side elements are angled outwards from the hydraulic pipe 20 at approximatelyimately 45 to the axis of the hydraulic pipe 20. At the distal end of each, there is provided an annular element - 4 38,40 which securely fixed about the wiring loom 24. In this way the wiring loom 24 is spaced apart from the hydraulic pipe 20 between brackets 27 to avoid fretting.
In a further embodiment as shown in Figure 6 the side elements of the bracket 27 are provided with a radius to ease the stress imposed upon the wiring loom.
The bracket 27 is preferably made of a plastically deformable material, selected such that the divergence imparted upon the wiring loom 24 is reduced when the hydraulic pipe is in its first arcuate shape and the wiring loom 24 is under increased tension. This reduces the bending moment applied to the wiring loom 24 immediately adjacent the side elements 34,36. It will be understood however, that this is not essential and that the bracket 27 may be rigid, or alternately provided with hinged side elements 34,36 which are biased outwards by resilient means such as springs or elastic elements (not shown). - 5

Claims (2)

1 An assembly for connecting relatively moveable parts of a gas turbine engine exhaust duct comprising a first flexible element which is bendable between a first arcuate shape and a second more linear shape, and a second flexible element which is attached to the first flexible element at at least two discrete locations, wherein the second element is longer than the first element and means are provided which space the second element apart from the first element between mounting points when it is in the second shape.
2 An assembly as claimed in claim 1 wherein the first flexible element is a hydraulic hose and the second flexible element is a wiring loom.
GB0314155A 2003-06-18 2003-06-18 Support harness clip assembly Withdrawn GB2402962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0314155A GB2402962A (en) 2003-06-18 2003-06-18 Support harness clip assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0314155A GB2402962A (en) 2003-06-18 2003-06-18 Support harness clip assembly

Publications (2)

Publication Number Publication Date
GB0314155D0 GB0314155D0 (en) 2003-07-23
GB2402962A true GB2402962A (en) 2004-12-22

Family

ID=27636810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0314155A Withdrawn GB2402962A (en) 2003-06-18 2003-06-18 Support harness clip assembly

Country Status (1)

Country Link
GB (1) GB2402962A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100259118A1 (en) * 2007-12-06 2010-10-14 Toyota Jidosha Kabushiki Kaisha Vehicle drive device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872881A (en) * 1973-07-16 1975-03-25 Caterpillar Tractor Co Tether band for flexible hydraulic hoses
US4156436A (en) * 1977-08-19 1979-05-29 Fiat-Allis Construction Machinery, Inc. Support system for flexible conduits

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872881A (en) * 1973-07-16 1975-03-25 Caterpillar Tractor Co Tether band for flexible hydraulic hoses
US4156436A (en) * 1977-08-19 1979-05-29 Fiat-Allis Construction Machinery, Inc. Support system for flexible conduits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100259118A1 (en) * 2007-12-06 2010-10-14 Toyota Jidosha Kabushiki Kaisha Vehicle drive device
US8314521B2 (en) * 2007-12-06 2012-11-20 Toyota Jidosha Kabushiki Kaisha Vehicle drive device

Also Published As

Publication number Publication date
GB0314155D0 (en) 2003-07-23

Similar Documents

Publication Publication Date Title
US5083498A (en) Bendable actuator
US6354632B1 (en) Exhaust decoupler system
ATE334303T1 (en) BELLOWS FOR DYNAMIC TORSION CONTROL IN AN EXHAUST SYSTEM
US20120000312A1 (en) Painting robot
CN110539332A (en) Mechanical arm component structure
EP0929766B1 (en) Cable assembly holder for an industrial robot
ES8707592A1 (en) Articulated connection of pipe parts, particularly in exhaust gas conduits of motor vehicles.
JPS63501000A (en) A device for interconnecting two members and changing their relative positions and orientations, especially for use in the arms of manipulators.
US6622756B2 (en) Highly flexible hose end piece
US9599132B2 (en) Anti-rotation lug for mounting components together
GB2402962A (en) Support harness clip assembly
JP2000234680A (en) Tough tube strap clamp
US7316246B2 (en) Hose assembly
JP2017141989A (en) Cryogenic refrigerator and flexible connecting pipe for cryogenic refrigerator
JP2006254576A (en) Wiring method of wire harness for automobile
JP7105099B2 (en) Grommet
US7644571B2 (en) Hose conduit element for a paint robot
EP3987619B1 (en) A mounting bracket
JP2009106067A (en) Grommet for wire harnesses
JP2002541381A (en) Vehicle exhaust system
JP2647700B2 (en) Mechanical parts of industrial robot
JPH0857793A (en) Industrial robot
CN220254020U (en) Pipeline sleeve
CN113047980B (en) Carrier rocket engine sways servo device
CN114310859B (en) Robot

Legal Events

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