GB672823A - Improvements in or relating to centrifugal pumps - Google Patents
Improvements in or relating to centrifugal pumpsInfo
- Publication number
- GB672823A GB672823A GB2762/50A GB276250A GB672823A GB 672823 A GB672823 A GB 672823A GB 2762/50 A GB2762/50 A GB 2762/50A GB 276250 A GB276250 A GB 276250A GB 672823 A GB672823 A GB 672823A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- housing
- impeller
- rim
- valve member
- 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
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
-
- 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
- F04D29/14—Shaft sealings operative only when pump is inoperative
- F04D29/146—Shaft sealings operative only when pump is inoperative especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
672,823. Centrifugal pumps; stuffing-box substitutes. WILFLEY & SONS, Inc., A. R. Feb. 2, 1950 [July 19, 1949], No. 2762/50. Classes 110(i) and 122(v) In a sealing device for a centrifugal pump in which a resilient sealing valve member is pressed against the impeller housing to seal the impeller shaft when the pump is stationary and is withdrawn when the pump is running, the sealing valve member 40 comprises a hub portion 62a which closely fits the impeller shaft 31 and extends with radial clearance 64a in the shaft opening O in the housing and is joined by a flexible conical diaphragm 62b to a rim portion 62c attached to an annular assembly V rotatable with the shaft and axially movable relative thereto. When the shaft 31 is at rest a spring 56 forces the assembly V toward the housing and the rim 62c of the valve member contacts an annular ridge 63 on the housing; rotation of the shaft actuates centrifugal weights 54 that are pivoted on a member 53 fixed to a sleeve 45 secured to the shaft 31 'and operates on the assembly V to force it away from the housing against the spring 56 to unseat the rim 62c and open the gap 64a leakage through which is minimized by opposing hydraulic pressure due to an auxiliary impeller I formed on the main impeller 30. The valve member rim 62c may be reinforced by cords or fabric embedded therein. Specification 432,838 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US105549A US2620207A (en) | 1949-07-19 | 1949-07-19 | Glandless seal for centrifugal pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB672823A true GB672823A (en) | 1952-05-28 |
Family
ID=22306448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2762/50A Expired GB672823A (en) | 1949-07-19 | 1950-02-02 | Improvements in or relating to centrifugal pumps |
Country Status (5)
Country | Link |
---|---|
US (1) | US2620207A (en) |
DE (1) | DE812754C (en) |
DK (1) | DK81062C (en) |
FR (1) | FR1018785A (en) |
GB (1) | GB672823A (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2660487A (en) * | 1951-05-31 | 1953-11-24 | A R Wilfiey And Sons Inc | Centrifugal pump bearing seal |
DE911214C (en) * | 1951-05-31 | 1954-05-10 | Wilfley & Sons Inc A | Centrifugal pump |
DE937800C (en) * | 1953-02-17 | 1956-01-12 | Wilhelm Lorch | Bearing oil seal |
DE1013171B (en) * | 1953-06-30 | 1957-08-01 | Westfalia Dinnendahl Groeppel | Centrifugal pump without a stuffing box |
DE1100410B (en) * | 1958-06-18 | 1961-02-23 | Freudenberg Carl Fa | Ready-to-install axial seal |
DE1208574B (en) * | 1959-04-21 | 1966-01-05 | Gen Electric | Centrifugal balanced seal for a shaft |
US3137237A (en) * | 1961-08-22 | 1964-06-16 | Wilfley & Sons Inc A | Pump sealing apparatus |
US3402671A (en) * | 1967-05-17 | 1968-09-24 | Wilfley & Sons Inc A | Centrifugal pump and sealing means therefor |
US3472169A (en) * | 1967-12-27 | 1969-10-14 | Canadian Vickers Ltd | Balanced seal for centrifugal pumps |
US4385768A (en) * | 1979-07-19 | 1983-05-31 | Rotoflow Corporation, Inc. | Shaft mounting device and method |
IT1187539B (en) * | 1985-02-28 | 1987-12-23 | Danieli Off Mecc | LABYRINTH SEAL |
US4915579A (en) * | 1988-08-15 | 1990-04-10 | A. R. Wilfley & Sons, Inc. | Pump sealing apparatus |
DE10153293A1 (en) * | 2001-10-31 | 2003-05-15 | List Ag Arisdorf | Device for treating a substance |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1556657A (en) * | 1924-06-09 | 1925-10-13 | Arthur R Wilfley | Centrifugal pump |
US1960750A (en) * | 1929-10-17 | 1934-05-29 | American Cast Iron Pipe Co | Gasket construction |
US1931724A (en) * | 1930-09-23 | 1933-10-24 | Rollie B Fageol | Sealing device |
US1976532A (en) * | 1934-01-09 | 1934-10-09 | Wilfley & Sons Inc A | Sealing means for centrifugal pumps |
GB542218A (en) * | 1940-05-23 | 1941-12-31 | John Stanley Morgan | Improvements in glands for rotary shafts |
US2272454A (en) * | 1940-06-11 | 1942-02-10 | Wilfley & Sons Inc A | Seal for centrifugal pumps |
US2397486A (en) * | 1943-11-29 | 1946-04-02 | Thompson Prod Inc | Seal |
US2560557A (en) * | 1947-08-05 | 1951-07-17 | George W Curtis | End face oil and dirt seal |
-
1949
- 1949-07-19 US US105549A patent/US2620207A/en not_active Expired - Lifetime
-
1950
- 1950-02-02 GB GB2762/50A patent/GB672823A/en not_active Expired
- 1950-02-08 DE DEW1097A patent/DE812754C/en not_active Expired
- 1950-03-03 DK DK73950AA patent/DK81062C/en active
- 1950-03-10 FR FR1018785D patent/FR1018785A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2620207A (en) | 1952-12-02 |
FR1018785A (en) | 1953-01-13 |
DK81062C (en) | 1956-05-28 |
DE812754C (en) | 1951-09-03 |
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