GB1251686A - - Google Patents
Info
- Publication number
- GB1251686A GB1251686A GB1251686DA GB1251686A GB 1251686 A GB1251686 A GB 1251686A GB 1251686D A GB1251686D A GB 1251686DA GB 1251686 A GB1251686 A GB 1251686A
- Authority
- GB
- United Kingdom
- Prior art keywords
- packing
- slot
- space
- main
- pump
- 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
- 238000012856 packing Methods 0.000 abstract 9
- 238000007789 sealing Methods 0.000 abstract 3
- 230000000694 effects Effects 0.000 abstract 2
- 238000005461 lubrication Methods 0.000 abstract 2
- 239000013536 elastomeric material Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4286—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps inside lining, e.g. rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
- Sealing Of Bearings (AREA)
Abstract
1,251,686. Seals. SVENSKA PRECISIONS-VERKTYG A.B. 6 Dec., 1968 [11 Dec., 1967], No. 58048/68. Heading F2B. A pump for liquids containing solid particles comprises a main first packing 50 which is surrounded by an oil chamber 48, a second packing 78 of elastomeric material which is connected to the pump housing and co-operates with a rotary surface to provide a space 86 between the two packings, and a slot 74 provided between the impeller 18 and the pump housing, the second packing having an annular surface 80 under axial pressure and an annular undercut lip which in operation permits communication between the slot and the said space so that the pressure on the forward side of the main packing is reduced to effect lubrication of the main packing. The main packing 50 consists of a stationary ring 52 engaged by a rotary twoelement ring 54 carried by an elastomeric sleeve 56 and a rigid spring-urged retainer 58. The second packing 78 may be connected to, or formed integrally with, a rubber protective facing 62 which is reinforced by a member 66 and secured to the pump cover 26 by means of screws 72 and a snap-on flange 70. During rotation of the impeller 18, a reduced pressure is created in the slot 74 causing the sealing lip to open to evacuate the space 86 and thereby effect lubrication of the main packing 50 with oil from the chamber 48. When the pump stops, the reduced pressure in the space 86 is retained by the sealing lip which is pressed into sealing contact by the higher pressure in the slot 74.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE17017/67A SE333506B (en) | 1967-12-11 | 1967-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1251686A true GB1251686A (en) | 1971-10-27 |
Family
ID=20303138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1251686D Expired GB1251686A (en) | 1967-12-11 | 1968-12-06 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3552888A (en) |
JP (1) | JPS4947321B1 (en) |
DE (1) | DE1813676C3 (en) |
FR (1) | FR1597793A (en) |
GB (1) | GB1251686A (en) |
SE (1) | SE333506B (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE374415B (en) * | 1974-04-09 | 1975-03-03 | Stenberg Flygt Ab | |
SE405279C (en) * | 1977-04-29 | 1985-12-09 | Flygt Ab | OIL HOUSE LOCATED BETWEEN PUMP UNIT AND DRIVEN UNIT IN A DRINKABLE PUMP UNIT |
JPS59110896A (en) * | 1982-12-15 | 1984-06-26 | Ebara Corp | Submersible motor pump |
IT1226677B (en) * | 1988-08-17 | 1991-01-31 | Nowax Srl | TURBOMACHINE OPERATOR, IN PARTICULAR ELECTRIC PUMP, WITH MOTOR CONNECTION STRUCTURE - IMPROVED PUMP |
DE10239998A1 (en) * | 2002-08-27 | 2004-03-04 | Gardena Manufacturing Gmbh | Submerged pump has intermediate chamber filled with hydrophobic liquid between motor and pump chambers |
CA2552743A1 (en) * | 2004-01-16 | 2005-08-11 | Polaris Pool Systems, Inc. | Motor-driven pump for pool or spa |
JP2008025477A (en) * | 2006-07-21 | 2008-02-07 | Jtekt Corp | Electric pump |
US20090100701A1 (en) * | 2007-10-17 | 2009-04-23 | Wyssmont Co. Inc. | System for sealing an apparatus |
JP5178144B2 (en) * | 2007-10-25 | 2013-04-10 | 新明和工業株式会社 | underwater pump |
US8454307B2 (en) * | 2008-11-26 | 2013-06-04 | Sta-Rite Industries, Llc | Socket with bearing bore and integrated wear plate |
US8276289B2 (en) | 2009-03-27 | 2012-10-02 | Terra Green Energy, Llc | System and method for preparation of solid biomass by torrefaction |
CN102840125A (en) * | 2011-06-21 | 2012-12-26 | 祁成 | Water seal of automobile cooling water pump |
US8998576B2 (en) * | 2011-11-03 | 2015-04-07 | Pentair Water Pool And Spa, Inc. | Pump with hydraulic isolator |
DE102013211180A1 (en) * | 2013-06-14 | 2014-12-18 | E.G.O. Elektro-Gerätebau GmbH | pump |
DE102015102808A1 (en) * | 2014-03-12 | 2015-09-17 | Hanning Elektro-Werke Gmbh & Co. Kg | pump assembly |
JP2018182161A (en) | 2017-04-18 | 2018-11-15 | Tdk株式会社 | Magnet, magnet structure, and rotation angle detector |
-
1967
- 1967-12-11 SE SE17017/67A patent/SE333506B/xx unknown
-
1968
- 1968-12-06 GB GB1251686D patent/GB1251686A/en not_active Expired
- 1968-12-09 US US782061A patent/US3552888A/en not_active Expired - Lifetime
- 1968-12-10 DE DE1813676A patent/DE1813676C3/en not_active Expired
- 1968-12-11 JP JP43090261A patent/JPS4947321B1/ja active Pending
- 1968-12-11 FR FR1597793D patent/FR1597793A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3552888A (en) | 1971-01-05 |
DE1813676B2 (en) | 1978-12-07 |
SE333506B (en) | 1971-03-15 |
DE1813676A1 (en) | 1969-07-03 |
DE1813676C3 (en) | 1979-08-09 |
JPS4947321B1 (en) | 1974-12-14 |
FR1597793A (en) | 1970-06-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |