GB2446152A - Positioning and sealing of two tubular elements - Google Patents
Positioning and sealing of two tubular elements Download PDFInfo
- Publication number
- GB2446152A GB2446152A GB0701845A GB0701845A GB2446152A GB 2446152 A GB2446152 A GB 2446152A GB 0701845 A GB0701845 A GB 0701845A GB 0701845 A GB0701845 A GB 0701845A GB 2446152 A GB2446152 A GB 2446152A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubular
- sealing
- spring
- tubular element
- transmission filter
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000011900 installation process Methods 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 1
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
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/03—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
-
- 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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
In order to improve the positioning and sealing of two tubular parts, e.g. a transmission filter TM an aluminum housing all, in an automatic transmission, a wave spring 3 is provided between the first and the second tubular parts. The spring 3 pushes the second tubular element slightly away from the first element while the sealing between the two tubular elements is assured by the sealing element placed between the first and the second tubular element. A lip seal 2 may be provided and the second tubular element may be provided with chimney reinforcement ribs 4. The spring may be a helical spring and may be fixed to the seal. A corresponding device can be used in many fields of technology wherever two tubular elements are to be sealed and at the same time kept at some variable distance from the minimum axial position in which the two tubular elements touch each other. It thereby allows a certain axial tolerance or gap between the two tubular elements which might be necessary for the installation process.
Description
Device comprising tubular elements The invention relates to a device
comprising a first and a second tubular element, one end of the second tubular element being configured to be introduced in the axial opening of the first tubular element, a sealing element being disposed between the inner wall of the first tubular element and the outer wall of the second tubular element.
The invention particularly relates to simultaneous positioning and sealing of at least two tubular parts, especially to simultaneous positioning and sealing of a transmission filter to a housing, generally an aluminum housing, in automatic transmissions.
In automatic transmissions, the transmission filter should be placed at the lowest position possible.
Generally, the transmission filter is simply assembled with a conventional lip seal without any device for axial load. As a result of that, the transmission filter is some millimeters (e.g. 2 mm) above the pan and it does not touch the pan. With this relative position, the oil, budget is not optimized and noise can be created.
One approach to solve this problem could be an additional elastic element between the pan and the filter. However, this elastic element requires additional space which might not be available.
Another approach is to design the filter and the pan in one unitary piece which however requires a new and expensive tool for realizing this unitary element.
The invention seeks to improve the positioning and sealing of the tubular parts.
This object is reached in that spring means are provided between the first and the second tubular element.
The spring means always pushes the second tubular element slightly away from the first element while the sealing between the two tubular elements is assured by the sealing element placed between the first and the second tubular element. A corresponding device can be used in many fields of technology wherever two tubular elements are to be sealed and at the same time kept at some variable distance from the minimum axial position in which the two tubular elements touch each other. it thereby allows to recover a certain axial tolerance or gap between the two tubular elements which might be necessary for the installation process.
A preferred embodiment is characterized in that the spring means are configured as a wave spring.
A wave spring can be placed into a relatively small interstice between the two tubular elements.
In an alternative embodiment, the spring means are configured as a helical spring.
Helical springs can also be configured to need little space so that a helical spring can be placed in the interstice between the two tubular elements.
It is preferred that that the Spring means are fixed to the sealing element.
For example, the spring means can be spot welded to a metallic part of the sealing element.
Furthermore, the spring means may be applied on ribs of the second tubular element.
In a preferred application of the invention, the second tubular element is a transmission filter of an automatic transmission and the first tubular element is the corresponding housing.
In the case where the first tubular element is a transmission filter of art automatic transmission and the second tubular element is the corresponding housing, better performance is achieved by the spring means which always forces the transmission filter in low position required for a good product performance.
In the same time, it avoids interference between the filter chimney top end and a housing bore inner chamfer by opposing a reaction force gradually increasing when the filter is installed.
Finally, this load reaches a level that leads to an unacceptable pushing force for the operator when the chimney top end is too close to the bore inner chamfer which ensures safe installation.
The foregoing and further objects, features and advantages of the invention will become more apparent from the following description of a preferred embodiment with reference to the accompanying drawings wherein like numerals are used to represent like elements and wherein Figure 1 is a representation of the transmission filter and the aluminum housing as parts of a transmission, and Figure 2 is an axially cut view of an interconnection between the transmission filter and the aluminum housing in an embodiment of the present invention.
As represented in Figure 1, the transmission filter TF is simply assembled to the aluminum housing AN with a conventional lip seal 2 without any device for axial load. As a result of that, the transmission filter TF is some millimeters (e.g. 2 mm) up to the pan P and it does not touch the pan P. With this relative position, the oil budget is not optimized and noise can be created.
Figure 2 shows the device corresponding to an embodiment of the present invention. In order to assure sealing between the aluminum housing AH and the transmission filter TF, a lip seal 2, preferably made of an elastomeric substance, overmolded on a steel housing Combined with a support washer 6 is attached with a wave spring 3 to a bottom support washer 7. Preferably, the steel housing combined with the support washer 6 is spot welded with the wave spring 3. The assembly is applied on transmission filter chimney reinforcement ribs 4.
The wave spring 3 always forces the transmission filter TF in low position required for a good product performance. In the same time, it avoids having interference between the transmission filter chimney top end 1 and a housing bore inner chamfer 5 by opposing a reaction force gradually increasing when the transmission filter TF is installed. Finally, this load reaches a level that leads to an unacceptable pushing force for the operator when the transmission filter chimney top end 1 is too close to the bore inner chamfer 5 which insures a safe installation.
The main benefits of the invention are sealing, good positioning of the parts and safe assembly.
Claims (5)
1. A device comprising a first and a second tubular element, one end of the second tubular element being configured to be introduced in the axial opening of the first tubular element, a sealing element (2) being disposed between the inner wall of the first tubular element (AH) and the outer wall of the second tubular element (TF), characterized in that spring means (3) are provided between the first tubular element (AH) and the second tubular element (TF)
2. The device of claim 1, characterized in that the spring means (3) are configured as a wave spring.
3. The device of claim 1, characterized in that the spring means (3) are configured as a helical spring.
4. The device of claim 1, characterized in that the spring means (3) are fixed to the sealing element (2).
5. A device substantially as herein described with reference to Fig. 2 of the accompanying drawings. * *S * *
5. The device of claim 4, characterized in that the spring means (3) are applied on ribs (4) of the second tubular element (TF).
6. The device of claim 1, characterized in that the second tubular element is a transmission filter (TF) of an automatic transmission and the first tubular element is the corresponding housing (AH).
7. A device substantially as herein described with reference to Fig. 2 of the accompanying drawings.
AMENDMENT TO THE CLAIMS HAVE BEEN FILED AS FOLLOWS
1. A tubular transmission filter and a tubular housing, one end of the transmission filter being configured to be introduced in the axial opening of the housing, a sealing element being disposed between the inner wall of the housing and the outer wall of the transmission filter, characterized in that spring means are provided between the housing and the transmission filter, the spring means being applied on ribs of the transmission filter.
2. The device of claim 1, characterized in that the spring means are configured as a wave spring.
3. The device of claim 1, characterized in that the spring means * ** are configured as a helical spring. ***
4. The device of claim 1, characterized in that the spring means
U
:.: *. are fixed to the housing. je 20
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0701845A GB2446152B (en) | 2007-01-31 | 2007-01-31 | Positioning and sealing of a tubular transmission filter to a tubular housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0701845A GB2446152B (en) | 2007-01-31 | 2007-01-31 | Positioning and sealing of a tubular transmission filter to a tubular housing |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0701845D0 GB0701845D0 (en) | 2007-03-14 |
| GB2446152A true GB2446152A (en) | 2008-08-06 |
| GB2446152B GB2446152B (en) | 2009-03-11 |
Family
ID=37891042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0701845A Expired - Fee Related GB2446152B (en) | 2007-01-31 | 2007-01-31 | Positioning and sealing of a tubular transmission filter to a tubular housing |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2446152B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9506587B2 (en) | 2008-07-10 | 2016-11-29 | Airbus Operations Limited | Connector for an aircraft fuel pipe |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838504B (en) * | 2017-02-17 | 2018-10-19 | 平罗县龙江液化气有限责任公司 | A kind of conveyance conduit of liquefied natural gas |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2009872A (en) * | 1977-11-24 | 1979-06-20 | Messerschmitt Boelkow Blohm | Pipe coupling with means for absorbing pressure surges |
| WO1985005667A1 (en) * | 1984-06-01 | 1985-12-19 | O.E.M. Technical Sales, Incorporated | Flexible joint for pipes |
| US4792161A (en) * | 1988-03-01 | 1988-12-20 | Usui Kokusai Sangyo Kaisha, Ltd. | Structure for connecting ends of exhaust pipes |
| US5069490A (en) * | 1989-10-06 | 1991-12-03 | Coupling Systems, Incorporated | Pipe coupling with spring off-set |
| JPH10213280A (en) * | 1997-01-30 | 1998-08-11 | Nkk Corp | Bayonet pipe joint |
| US5816624A (en) * | 1996-12-13 | 1998-10-06 | Smith; Walter W. | Hose end conduit swivel connector |
-
2007
- 2007-01-31 GB GB0701845A patent/GB2446152B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2009872A (en) * | 1977-11-24 | 1979-06-20 | Messerschmitt Boelkow Blohm | Pipe coupling with means for absorbing pressure surges |
| WO1985005667A1 (en) * | 1984-06-01 | 1985-12-19 | O.E.M. Technical Sales, Incorporated | Flexible joint for pipes |
| US4792161A (en) * | 1988-03-01 | 1988-12-20 | Usui Kokusai Sangyo Kaisha, Ltd. | Structure for connecting ends of exhaust pipes |
| US5069490A (en) * | 1989-10-06 | 1991-12-03 | Coupling Systems, Incorporated | Pipe coupling with spring off-set |
| US5816624A (en) * | 1996-12-13 | 1998-10-06 | Smith; Walter W. | Hose end conduit swivel connector |
| JPH10213280A (en) * | 1997-01-30 | 1998-08-11 | Nkk Corp | Bayonet pipe joint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9506587B2 (en) | 2008-07-10 | 2016-11-29 | Airbus Operations Limited | Connector for an aircraft fuel pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0701845D0 (en) | 2007-03-14 |
| GB2446152B (en) | 2009-03-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20090305 AND 20090311 |
|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20091029 AND 20091104 |
|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20091105 AND 20091111 |
|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20170131 |