GB1589269A - Rotary face seal - Google Patents
Rotary face seal Download PDFInfo
- Publication number
- GB1589269A GB1589269A GB3051176A GB3051176A GB1589269A GB 1589269 A GB1589269 A GB 1589269A GB 3051176 A GB3051176 A GB 3051176A GB 3051176 A GB3051176 A GB 3051176A GB 1589269 A GB1589269 A GB 1589269A
- Authority
- GB
- United Kingdom
- Prior art keywords
- component
- counterface
- shaft
- face seal
- seal
- 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.)
- Expired
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3464—Mounting of the seal
- F16J15/348—Pre-assembled seals, e.g. cartridge seals
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/36—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member connected by a diaphragm or bellow to the other member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
- Sealing Devices (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Description
(54) ROTARY FACE SEAL
(71) We, WOODVILLE RUBBER COM
PANY LIMITED, a British Company, of Rosson-Wye, Herefordshire, HR9 5NF, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement :
This invention relates to face seal assemblies which allow relative rotation between a shaft and another part such as housing, bearing or shaft collar, but which prevent escape of fluid between the parts.
Face seal assemblies are known which for their operation make use of a face seal component which bears resiliently against a counterface component adapted to be secured to a portion of the shaft and an annular seal which engages the housing or other part.
It is an object of the invention to provide a face seal assembly which can be handled as a complete unit prior to and during installation on the shaft.
In accordance with the present invention there is provided a rotary shaft seal assembly for providing a seal between a shaft and a housing or other part rotatable relative to the shaft comprising an annular seal for engaging one of the relatively rotatable parts and shaped to form an extension whose end surface is sealed to a face seal component, a counterface component engaging the face seal component, resilient means urging the annular seal and the end surface of the extension apart, and a retaining means lying adjacent the shaft and engaging the counterface component and being operatively connected to the end of the resilient means remote from the counterface component; the retaining means holding the face seal component to the counterface component to form an assembly which can be installed as a single unit and adapted to be compressed when mounted on the shaft so that it forms a fluid-tight seal between the shaft and the counterface component.
More specifically the present invention may take the form of a fluid face seal assembly comprising an annular seal for engaging a
relatively stationary housing or like compo
nent, a carrier member coaxial with, support
ted by and extending from said annular seal,
a face seal component sealingly secured to
said carrier member, at least one compres
sion spring urging said face seal and said
annular seal axially apart, a counterface
component engaging said face seal component,
and retaining means extending between said
annular seal and said counterface component
to unite the face seal component and counter
face component into a single assembly
wherein they are retained in axially adjoining
relation with one another.
Reference will now be made to the accom
panying drawing which shows one embodi
ment of the invention, by way of example, and
in which a fluid face seal assembly 10 com
prises an annular seal 11 for engaging within a
recess of a relatively stationary housing or
like component, and a carrier member 12
coaxial with, supported by and extending
integrally from said annular seal 11 at a
radially intermediate zone 13. The carrier
member 12 is formed as an extension of
annular seal 11 in one piece of elastomeric
material. The surface 40 of the annular seal
11 may be threaded so that the assembly can be screwed into the housing with which the assembly is to be used (not shown).The carrier member 12 has at its end remote from the annular seal 11 an annular sealing protuberance 14 moulded thereon and a radially inwardly directed flange 15 to which is sealingly secured a face seal component 16 which may be made of graphite impregnated phenolic material. The sealing protruberance
14 is compressed during assembly and fits snugly into the face seal component 16. The annular seal 11 has at least two diametrically opposed slots 17 in its inner periphery which receive mating axially directed projections 18 on the face seal component 16 to inhibit relative rotation between the annular seal 11 the face seal component 16. Alternatively the projections could be on the annular seal 11 and the slots in the face seal component 16.
Compression means, such as a spring 19, located within the carrier member 12 urges the face seal component 16 and the annular seal 11 axially apart. At its ends the spring 19 bears against pressings 20 and 21, respectively.
Pressing 20 supports and restricts the movement of the elastomeric material between the spring 19 and the face seal component 16 in both axial and radial directions.
The face seal component 16 engages a counterface component 22 which is adapted to be secured to a rotary member such a shaft (not shown) and rotates therewith. It is very convenient to supply a face seal assembly complete with its counterface component.
To enable this to be done a retainer means 23 of elastomeric material is provided within the carrier member 12 and this unites the counterface component 22 and face seal component 16 by engaging the counterface component 22 and pressing 21, for example. In the free state the retainer means 23 is held under tension by spring 19 prior to and during installation of the assembly onto a shaft.
This holds the counterface component 22 against the face seal component 16 and also stops the projections 18 from working out of the slots 17. On assembly, part 24 of retainer means 23 is compressed between the counterface component 22 and the shaft and sealingly secures the counterface component to the shaft. If a pump impellor, for example, is force fitted onto the shaft, the part 24 of the retainer means 23 is pushed by spring 19 against the back face of the impeller. On assembly on the shaft, a flange 25 on the retainer means 23 is pushed away from pres
sing 21 and may act as a flinger and help to expel any fluid or moisture from inside the seal assembly, and the cylindrical part 26 will protect part of the shaft from corroding.
Cylindrical part 27 of carrier member 12 will be compressed into bellows formation when the face seal assembly 10 is installed for
use and the top flange 28 of annular seal 11
has two concentric rings 29, 30 moulded into
it. This helps to localise pressure due to the
load of spring 19 and the load from the
bellows formation in part 27.
The various parts of the face seal assembly
may be made of any suitable materials.
It will be understood that the present invention is not limited to the foregoing details, which are given by way of example, as various modifications may be made to suit requirements. For example, retainer means such as item 23 may be applied to many other forms of face seal assembly to retain a counter face component against a face seal component in axially adjoining relation prior to and during installation for use.
WHAT WE CLAIM IS:- 1. A rotary shaft seal assembly for providing a seal between a shaft and a housing or other part rotatable relative to the shaft comprising an annular seal for engaging one of the relatively rotatable parts and shaped to form an extension whose end surface is sealed to a face seal component, a counterface component engaging the face seal component, resilient means urging the annular seal and the end surface of the extension apart, and a retaining means lying adjacent the shaft and engaging the counterface component and being operatively connected to the end of the resilient means remote from the counterface component; the retaining means holding the face seal component to the counterface component to form an assembly which can be installed as a single unit and adapted to be compressed when mounted on the shaft so that it forms a fluid-tight seal between the shaft and the counterface component.
2. An assembly as claimed in claim 1 in which the retaining means is composed of a resilient material and engages a rigid annular element which embraces the end of the resilient means remote from the counterface component and engages the annular seal component.
3. A rotary shaft seal assembly substantially as hereinbefore described with reference to the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (3)
1. A rotary shaft seal assembly for providing a seal between a shaft and a housing or other part rotatable relative to the shaft comprising an annular seal for engaging one of the relatively rotatable parts and shaped to form an extension whose end surface is sealed to a face seal component, a counterface component engaging the face seal component, resilient means urging the annular seal and the end surface of the extension apart, and a retaining means lying adjacent the shaft and engaging the counterface component and being operatively connected to the end of the resilient means remote from the counterface component; the retaining means holding the face seal component to the counterface component to form an assembly which can be installed as a single unit and adapted to be compressed when mounted on the shaft so that it forms a fluid-tight seal between the shaft and the counterface component.
2. An assembly as claimed in claim 1 in which the retaining means is composed of a resilient material and engages a rigid annular element which embraces the end of the resilient means remote from the counterface component and engages the annular seal component.
3. A rotary shaft seal assembly substantially as hereinbefore described with reference to the accompanying drawing.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3051176A GB1589269A (en) | 1976-07-22 | 1976-07-22 | Rotary face seal |
IT2574877A IT1092254B (en) | 1976-07-22 | 1977-07-14 | FRONT SEAL FOR PUMP |
DE19772732658 DE2732658A1 (en) | 1976-07-22 | 1977-07-20 | READY TO INSTALL SEAL ARRANGEMENT |
NL7708138A NL7708138A (en) | 1976-07-22 | 1977-07-21 | END SEAL FOR A PUMP OR THE LIKE. |
JP8822177A JPS5313052A (en) | 1976-07-22 | 1977-07-22 | Surface seal assembly |
ES1977230083U ES230083Y (en) | 1976-07-22 | 1977-07-22 | SEAL ASSEMBLY FOR ROTARY TREE. |
FR7722573A FR2359336A1 (en) | 1976-07-22 | 1977-07-22 | SEALING DEVICE FOR ROTARY BODY PASSING THROUGH A FIXED FACE SUCH AS THAT OF A PUMP CASING |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3051176A GB1589269A (en) | 1976-07-22 | 1976-07-22 | Rotary face seal |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1589269A true GB1589269A (en) | 1981-05-07 |
Family
ID=10308842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3051176A Expired GB1589269A (en) | 1976-07-22 | 1976-07-22 | Rotary face seal |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5313052A (en) |
DE (1) | DE2732658A1 (en) |
ES (1) | ES230083Y (en) |
FR (1) | FR2359336A1 (en) |
GB (1) | GB1589269A (en) |
IT (1) | IT1092254B (en) |
NL (1) | NL7708138A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2325031A (en) * | 1997-04-17 | 1998-11-11 | Aes Eng Ltd | Mechanical seal with non-metallic end cap |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2357760A1 (en) * | 1976-07-06 | 1978-02-03 | Mecanique Ind Int | CENTRIFUGAL PUMPS IMPROVEMENTS |
DE2921669C2 (en) * | 1979-05-29 | 1982-12-30 | Kaco Gmbh + Co, 7100 Heilbronn | poetry |
DE3927589C2 (en) * | 1989-08-22 | 1994-09-29 | Kaco Gmbh Co | Sealing unit |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR7503664A (en) * | 1974-08-05 | 1976-08-03 | Ford Motor Co | SEALING ASSEMBLY SUITABLE FOR USE BETWEEN A ROTATING AXLE AND A HOUSING AND LIQUID SEALING ASSEMBLY |
-
1976
- 1976-07-22 GB GB3051176A patent/GB1589269A/en not_active Expired
-
1977
- 1977-07-14 IT IT2574877A patent/IT1092254B/en active
- 1977-07-20 DE DE19772732658 patent/DE2732658A1/en not_active Withdrawn
- 1977-07-21 NL NL7708138A patent/NL7708138A/en unknown
- 1977-07-22 ES ES1977230083U patent/ES230083Y/en not_active Expired
- 1977-07-22 JP JP8822177A patent/JPS5313052A/en active Pending
- 1977-07-22 FR FR7722573A patent/FR2359336A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2325031A (en) * | 1997-04-17 | 1998-11-11 | Aes Eng Ltd | Mechanical seal with non-metallic end cap |
GB2325031B (en) * | 1997-04-17 | 2000-08-30 | Aes Eng Ltd | Mechanical seal |
Also Published As
Publication number | Publication date |
---|---|
ES230083Y (en) | 1978-02-01 |
ES230083U (en) | 1977-10-01 |
JPS5313052A (en) | 1978-02-06 |
FR2359336A1 (en) | 1978-02-17 |
IT1092254B (en) | 1985-07-06 |
DE2732658A1 (en) | 1978-01-26 |
NL7708138A (en) | 1978-01-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3495843A (en) | Pressure seal with antiextrusion means | |
US4451049A (en) | Face seal | |
US3536333A (en) | Rotary seals | |
US2653837A (en) | High-pressure rotary seal with o ring | |
US3829106A (en) | High pressure lip seal | |
US2752176A (en) | Seals for rotating shafts | |
US3074728A (en) | Seals | |
US3515393A (en) | Face seals | |
US4239241A (en) | Fluid seal assembly | |
US2717790A (en) | Sealing devices | |
GB1589269A (en) | Rotary face seal | |
US3767279A (en) | Flexible flange for bearings, preferably rolling bearings | |
US2646296A (en) | Packing for use between rotatable and fixed parts | |
US3705728A (en) | Rotary shaft seals | |
GB817392A (en) | Improvements in or relating to sealing means between relatively rotatable elements | |
CN214118953U (en) | Internal flow internal pressure and external flow external pressure combined type double-end-face shaft seal system | |
US2504937A (en) | Self-contained mechanical seal with "o" ring | |
US2585154A (en) | Drive for rotary mechanical seals with o rings | |
US1972809A (en) | Packing structure | |
US3081098A (en) | Seals for rotary shafts or the like | |
US2592728A (en) | Rotary mechanical seal | |
US3010742A (en) | Sealing devices | |
US2471679A (en) | Oil seal | |
US4212477A (en) | Circumferential shaft seal | |
US2395107A (en) | Sealing ring |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |