US2460952A - Rotary pump with elastic rotor sealing rib - Google Patents
Rotary pump with elastic rotor sealing rib Download PDFInfo
- Publication number
- US2460952A US2460952A US607618A US60761845A US2460952A US 2460952 A US2460952 A US 2460952A US 607618 A US607618 A US 607618A US 60761845 A US60761845 A US 60761845A US 2460952 A US2460952 A US 2460952A
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- US
- United States
- Prior art keywords
- rotor
- ribs
- rotary pump
- sealing rib
- shaft
- 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 - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C5/00—Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable
Definitions
- a primary object of our invention is to provide a quick-acting and positive seal for the above purpose.
- Another object of our invention is to provide a seal which is inexpensive to manufacture, easy to install, and has long life.
- Another object of our invention is the provision of a novel self-sealing rotor for fluid pumps.
- Fig. 1 is a side elevation of our novel pump. some parts being removed to show the interior thereof;
- Fig. 2 is a vertical axial section of the rotor shown in Fig. 1;
- Fig. 3 is an enlarged vertical section taken on the line 3-3 of Fig. 1;
- Fig. 4- is a vertical axial section of a modifled form of our invention.
- the numeral l indicates a pump casing or housing which is provided with an intake port 2 and an outlet port 3.
- the housing On the inside, the housing is provided with a smooth cylindrical wall 4 at its periphery.
- a pair of axially spaced side plates 5 are provided with axially projecting bearing bosses 6. Studs l, which fit into threaded holes 8 in the housing I, make it possible to remove the side plates 5 at will.
- a shaft 9 is journalled for rotation in the bearing bosses 6 of side plates 5, eccentric with respect to the axis of cylindrical wall 4, and is shown as having its ends projecting outwardly therefrom.
- Side plates -5 are shown as being provided with opposed parallel smooth walls l0.
- a rotor II mounted fast on shaft 9 for rotation within the housing, is a rotor II, made preferably of rubber or other flexible resilient material and having a plurality of integrally formed, resilient, radial vanes l2.
- rotor H The straight side edges l3 of rotor H are flush with the smooth walls III of the side plates 5, that is, snug enough to prevent excess leakage of the fluid being propelled by the radial vanes l2, but not tight enough to cause excess friction.
- the rotor II is provided with axially projecting endless, resilient ribs which surround shaft 8 and preferably, and as shown, are concentric therewith.
- An endless concentric channel It separates ribs ll from shaft 9 whereas a likewise endless concentric channel it defines the radially outer limits of said ribs. As shown, particularly in Figs.
- ribs ll project axially outwardly slightly beyond the straight side edges ll of the rotor ll so as topress or rub with greater force against the smooth inside walls or surfaces l0, than does the edge l3 of the rotor l i.
- ribs it are provided with cross-sectionally concave faces I! throughout their circumference. Also, the sides of the ribs l4 taper inwardly from their faces I! toward their medial portions as indicated by the numeral I8, whereby to create feathered outer edges l9.
- the shaft 9 is provided with a rotor 20 which,
- rotor, 20 has straight side edges 2
- the peripheral outside surface of rotor 20 is provided with an overlying layer of rubber or other suitable material 23 to which are integrally formed the resilient radially extending vanes l2.
- a fluid pump including a housing member having a cylindrical wall, spaced parallel side walls having smooth inner surfaces, spaced inlet and outlet ports, a shaft extending through at least one of said side walls and journalled for rotation therein, a rotor member mounted on said shaft for rotation within said housing member, said rotor member having side surfaces ad- ,iacent said surfaces of the side walls; the improvement which comprises pressure sealing means between the housing member and rotor member and which includes a resilient endless rib projecting laterally from one of said members in surrounding relation to said shaft, said rib having a concave face in yieldable bearing engagement with an adjacent surface of the other of said members with the rib under compression, and said rib having an undercut side wall defining between same and said concave face a feathered edge in sealing engagement with said surface of the other of said members.
- a fluid pump including a housing having a cylindrical-wall, spaced parallel side walls having smooth inner surfaces, spaced inlet and outlet ports, a shaft extending through at least one of said side walls and ioumalled for rotation therein.
- a rotor mounted on said shaft for rotation within said housing, said rotor having side surfaces adjacent said surfaces of the side walls; the improvement which comprises pressure sealing means between the housing and rotor and which includes a resilient endless rib projecting laterally from said rotor at each side thereof and in surrounding relation to said shaft, each of said ribs having a concave face in yieldable bearing engagement with a side wall surface and said ribs further having feathered edges at opposite sides of the concave face in tight sealing engagement with said side wall surfaces, and restricted body portions to provide for ready flexing of the ribs, said ribs having concave side walls which with said concave face provide said feathered edges and said concave side walls providing said restricted portions in the ribs for ready flexing thereof for operative movement of
Description
Feb. 8, 1949. J. SIMER )u. 2,460,952
ROTARY PUMP WITH ELASTIC ROTOR SEALING RIB Filed July 28, 1945 Patented Feb. 8,1949
UNITED sures PATENT orrlcs ROTARY PUMP WITH ELAS TIC ROTOR SEALING RIB Jerome Simer and Ernest E. Cook, Minneapolis,
Minn., assignors to Paddle Pumps, Inc., Minneapolis, Minn., a corporation of Minnesota Application July 28, 1945, Serial No. 607,618
2 Claims. (Cl. 103-117) Our invention relates to fluid pumps and more particularly to the provision of adequate pressure seals therefor.
A primary object of our invention is to provide a quick-acting and positive seal for the above purpose.
Another object of our invention is to provide a seal which is inexpensive to manufacture, easy to install, and has long life.
Another object of our invention is the provision of a novel self-sealing rotor for fluid pumps.
The above and other objects of our invention will become apparent from the following specification and the attached drawings.
Referring to the drawings wherein like characters indicate like parts throughout the sever-- views:
Fig. 1 is a side elevation of our novel pump. some parts being removed to show the interior thereof;
Fig. 2 is a vertical axial section of the rotor shown in Fig. 1;
Fig. 3 is an enlarged vertical section taken on the line 3-3 of Fig. 1; and
Fig. 4- is a vertical axial section of a modifled form of our invention.
Referring more particularly to the drawings, the numeral l indicates a pump casing or housing which is provided with an intake port 2 and an outlet port 3.
On the inside, the housing is provided with a smooth cylindrical wall 4 at its periphery. A pair of axially spaced side plates 5 are provided with axially projecting bearing bosses 6. Studs l, which fit into threaded holes 8 in the housing I, make it possible to remove the side plates 5 at will. A shaft 9 is journalled for rotation in the bearing bosses 6 of side plates 5, eccentric with respect to the axis of cylindrical wall 4, and is shown as having its ends projecting outwardly therefrom. Side plates -5 are shown as being provided with opposed parallel smooth walls l0.
Mounted fast on shaft 9 for rotation within the housing, is a rotor II, made preferably of rubber or other flexible resilient material and having a plurality of integrally formed, resilient, radial vanes l2.
The straight side edges l3 of rotor H are flush with the smooth walls III of the side plates 5, that is, snug enough to prevent excess leakage of the fluid being propelled by the radial vanes l2, but not tight enough to cause excess friction. In the structure shown in Figs. 1, 2 and 3, the rotor II is provided with axially projecting endless, resilient ribs which surround shaft 8 and preferably, and as shown, are concentric therewith. An endless concentric channel It separates ribs ll from shaft 9 whereas a likewise endless concentric channel it defines the radially outer limits of said ribs. As shown, particularly in Figs. 2 and 3, ribs ll project axially outwardly slightly beyond the straight side edges ll of the rotor ll so as topress or rub with greater force against the smooth inside walls or surfaces l0, than does the edge l3 of the rotor l i.
As shown, ribs it are provided with cross-sectionally concave faces I! throughout their circumference. Also, the sides of the ribs l4 taper inwardly from their faces I! toward their medial portions as indicated by the numeral I8, whereby to create feathered outer edges l9.
In the modified construction, shown in Fig. 4,
the shaft 9 is provided with a rotor 20 which,
while shown as being formed integrally with the shaft 9, can be made separately from any suitable hard material and made fast thereto. In any event, rotor, 20 has straight side edges 2| which are in substantial alignment with straight side edges 22 of casing I. The peripheral outside surface of rotor 20 is provided with an overlying layer of rubber or other suitable material 23 to which are integrally formed the resilient radially extending vanes l2.
Inset in straight walls 22 of side plates 5 are resilient endless ribs 24 of the same general construction as the ribs ll of Figs. 1, 2 and 3. An endless-channel 25 separates rib 24 from shaft 8, and endless channel 26 defines the outer radial limits of rib 24. I
Operation the partial vacuum is at the bottom thereof, it
will be observed that the concave faces I! have become somewhat flattened as they are firmly compressed against the smooth walls IQ of the housing, thereby creating a suction-cupeflect;
As the ribs I4 rotate within the housing they are constantly subjected to a torque or twisting action as any given position thereon passes from the lower vacuum side of the housing I to the upper pressure side thereof. This torque or lateral flexing is, of course, greatly facilitated by the fact that the ribs I 4 are narrower at their centers is was at n. Furthermore, the
feathered edges I0, because of their extreme flexibility, make possible a considerable lateral twisting of the ribs I, by virtue of the reversal in pressures, without breaking of the seal.
We find this seal highly satisfactory in that it has an extremely high degree of emciency with but negligible friction.
The simplicity and utility of our invention is thought to be made obvious from the foregoing description and it will, of course, be understood that various alterations and changes in the detailsof construction and arrangement of parts may be made within the scope of the invention herein disclosed and claimed.
What we claim is:
1. In a fluid pump including a housing member having a cylindrical wall, spaced parallel side walls having smooth inner surfaces, spaced inlet and outlet ports, a shaft extending through at least one of said side walls and journalled for rotation therein, a rotor member mounted on said shaft for rotation within said housing member, said rotor member having side surfaces ad- ,iacent said surfaces of the side walls; the improvement which comprises pressure sealing means between the housing member and rotor member and which includes a resilient endless rib projecting laterally from one of said members in surrounding relation to said shaft, said rib having a concave face in yieldable bearing engagement with an adjacent surface of the other of said members with the rib under compression, and said rib having an undercut side wall defining between same and said concave face a feathered edge in sealing engagement with said surface of the other of said members.
2. In a fluid pump including a housing having a cylindrical-wall, spaced parallel side walls having smooth inner surfaces, spaced inlet and outlet ports, a shaft extending through at least one of said side walls and ioumalled for rotation therein. a rotor mounted on said shaft for rotation within said housing, said rotor having side surfaces adjacent said surfaces of the side walls; the improvement which comprises pressure sealing means between the housing and rotor and which includes a resilient endless rib projecting laterally from said rotor at each side thereof and in surrounding relation to said shaft, each of said ribs having a concave face in yieldable bearing engagement with a side wall surface and said ribs further having feathered edges at opposite sides of the concave face in tight sealing engagement with said side wall surfaces, and restricted body portions to provide for ready flexing of the ribs, said ribs having concave side walls which with said concave face provide said feathered edges and said concave side walls providing said restricted portions in the ribs for ready flexing thereof for operative movement of the rotor.
JEROME SIMER. ERNEST E. COOK.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,543,163 Johnson et al June 23, 1925 2,021,346 Allen Nov, 19, 1935 2,212,939 Irgens Aug. 27, 1940 2,258,371 Wernert Oct. 7, 1941 2,373,443 Armington Apr. 10, 1945 2,391,007 Buckendale Dec. 18, 1945 2,403,796 Hanna July 9, 1946 FOREIGN PATENTS Number Country Date 351,741 Great Britain July 2, 1931
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US607618A US2460952A (en) | 1945-07-28 | 1945-07-28 | Rotary pump with elastic rotor sealing rib |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US607618A US2460952A (en) | 1945-07-28 | 1945-07-28 | Rotary pump with elastic rotor sealing rib |
Publications (1)
Publication Number | Publication Date |
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US2460952A true US2460952A (en) | 1949-02-08 |
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ID=24433022
Family Applications (1)
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US607618A Expired - Lifetime US2460952A (en) | 1945-07-28 | 1945-07-28 | Rotary pump with elastic rotor sealing rib |
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Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2466440A (en) * | 1948-07-29 | 1949-04-05 | Kiekhaefer Elmer Carl | Impeller for rotary pumps |
US2536374A (en) * | 1949-08-04 | 1951-01-02 | Metal Products Corp | Outboard motor water pump |
US2542240A (en) * | 1947-12-04 | 1951-02-20 | Marine Products Company | Fluid pressure pump or motor |
US2567699A (en) * | 1947-04-16 | 1951-09-11 | Barnes Mfg Co | Pump |
US2573819A (en) * | 1947-04-17 | 1951-11-06 | Marine Products Company | Rotary pump or motor |
US2604852A (en) * | 1948-05-03 | 1952-07-29 | Fairbanks Morse & Co | Pump impeller |
US2616374A (en) * | 1947-07-11 | 1952-11-04 | Frank L Carson | Rotary pump |
US2633083A (en) * | 1948-09-21 | 1953-03-31 | Barnes Mfg Co | Pump |
US2636443A (en) * | 1948-01-31 | 1953-04-28 | H J Rand Washing Machine Corp | Self-lubricating pump |
US2644402A (en) * | 1949-10-06 | 1953-07-07 | Irvin H Lehman | Self-sealing rotor for fluid transferring devices |
US2649052A (en) * | 1947-04-17 | 1953-08-18 | Marine Products Company | Rotary pump or motor |
US2659313A (en) * | 1949-05-31 | 1953-11-17 | Frank L Carson | Rotary pump |
US2663263A (en) * | 1949-08-19 | 1953-12-22 | Submerged Comb Company Of Amer | Rotary pump |
US2671408A (en) * | 1947-03-10 | 1954-03-09 | Itt | Pump |
US2711136A (en) * | 1947-06-02 | 1955-06-21 | Cascade Pump Company | Seal |
US2712792A (en) * | 1950-06-28 | 1955-07-12 | Scott Atwater Mfg Co Inc | Pump structure |
US2789511A (en) * | 1953-05-25 | 1957-04-23 | Jabsco Pump Co | Flexible vane pump impeller |
US2843049A (en) * | 1954-01-29 | 1958-07-15 | Sherwood Brass Works | Resilient rotor pump or motor |
US2848952A (en) * | 1953-05-29 | 1958-08-26 | Creamery Package Mfg Co | Pump construction |
US2856859A (en) * | 1955-01-07 | 1958-10-21 | Visioneering Company Inc | Pump |
US2899902A (en) * | 1959-08-18 | Rotary pump impeller | ||
US2911920A (en) * | 1956-08-20 | 1959-11-10 | Samuel P Thompson | Pump with flexible impeller |
US2976811A (en) * | 1958-07-28 | 1961-03-28 | Jabsco Pump Co | Impeller with independent elastomeric blades and sealing means |
US3015283A (en) * | 1958-11-24 | 1962-01-02 | Bayer Ag | Gear pumps and motors |
US3065705A (en) * | 1961-01-16 | 1962-11-27 | Hypro Engineering Inc | Pump with flexible bladed rotor |
US4809992A (en) * | 1987-11-23 | 1989-03-07 | Woodex Bearing Company, Inc. | Rotary shaft seal assembly |
US20160123472A1 (en) * | 2014-06-10 | 2016-05-05 | Sandvik Mining And Construction Oy | Seal of tool and method of sealing |
US11339782B2 (en) | 2020-06-26 | 2022-05-24 | LeimbachCausey, LLC | Multi-chamber impeller pump |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1543163A (en) * | 1923-05-09 | 1925-06-23 | Sven A Johnson | Compressor |
GB351741A (en) * | 1930-06-30 | 1931-07-02 | Jethro Thomas Wade | Improvements in and relating to rotary air compressors, pumps and the like |
US2021346A (en) * | 1932-05-17 | 1935-11-19 | Allen Sherman Hoff Co | Sealing ring |
US2212939A (en) * | 1938-08-05 | 1940-08-27 | Outboard Marine & Mfg Co | Pump |
US2258371A (en) * | 1938-05-30 | 1941-10-07 | Wernert Karl | Rotary piston machine with rotor of yieldable material |
US2373443A (en) * | 1943-07-05 | 1945-04-10 | Euclid Road Machinery Co | Sealing means |
US2391007A (en) * | 1944-06-12 | 1945-12-18 | Timken Detrolt Axle Company | Resilient lubricant seal |
US2403796A (en) * | 1943-05-15 | 1946-07-09 | Hanna Engineering Works | Gear pump |
-
1945
- 1945-07-28 US US607618A patent/US2460952A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1543163A (en) * | 1923-05-09 | 1925-06-23 | Sven A Johnson | Compressor |
GB351741A (en) * | 1930-06-30 | 1931-07-02 | Jethro Thomas Wade | Improvements in and relating to rotary air compressors, pumps and the like |
US2021346A (en) * | 1932-05-17 | 1935-11-19 | Allen Sherman Hoff Co | Sealing ring |
US2258371A (en) * | 1938-05-30 | 1941-10-07 | Wernert Karl | Rotary piston machine with rotor of yieldable material |
US2212939A (en) * | 1938-08-05 | 1940-08-27 | Outboard Marine & Mfg Co | Pump |
US2403796A (en) * | 1943-05-15 | 1946-07-09 | Hanna Engineering Works | Gear pump |
US2373443A (en) * | 1943-07-05 | 1945-04-10 | Euclid Road Machinery Co | Sealing means |
US2391007A (en) * | 1944-06-12 | 1945-12-18 | Timken Detrolt Axle Company | Resilient lubricant seal |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2899902A (en) * | 1959-08-18 | Rotary pump impeller | ||
US2671408A (en) * | 1947-03-10 | 1954-03-09 | Itt | Pump |
US2567699A (en) * | 1947-04-16 | 1951-09-11 | Barnes Mfg Co | Pump |
US2573819A (en) * | 1947-04-17 | 1951-11-06 | Marine Products Company | Rotary pump or motor |
US2649052A (en) * | 1947-04-17 | 1953-08-18 | Marine Products Company | Rotary pump or motor |
US2711136A (en) * | 1947-06-02 | 1955-06-21 | Cascade Pump Company | Seal |
US2616374A (en) * | 1947-07-11 | 1952-11-04 | Frank L Carson | Rotary pump |
US2542240A (en) * | 1947-12-04 | 1951-02-20 | Marine Products Company | Fluid pressure pump or motor |
US2636443A (en) * | 1948-01-31 | 1953-04-28 | H J Rand Washing Machine Corp | Self-lubricating pump |
US2604852A (en) * | 1948-05-03 | 1952-07-29 | Fairbanks Morse & Co | Pump impeller |
US2466440A (en) * | 1948-07-29 | 1949-04-05 | Kiekhaefer Elmer Carl | Impeller for rotary pumps |
US2633083A (en) * | 1948-09-21 | 1953-03-31 | Barnes Mfg Co | Pump |
US2659313A (en) * | 1949-05-31 | 1953-11-17 | Frank L Carson | Rotary pump |
US2536374A (en) * | 1949-08-04 | 1951-01-02 | Metal Products Corp | Outboard motor water pump |
US2663263A (en) * | 1949-08-19 | 1953-12-22 | Submerged Comb Company Of Amer | Rotary pump |
US2644402A (en) * | 1949-10-06 | 1953-07-07 | Irvin H Lehman | Self-sealing rotor for fluid transferring devices |
US2712792A (en) * | 1950-06-28 | 1955-07-12 | Scott Atwater Mfg Co Inc | Pump structure |
US2789511A (en) * | 1953-05-25 | 1957-04-23 | Jabsco Pump Co | Flexible vane pump impeller |
US2848952A (en) * | 1953-05-29 | 1958-08-26 | Creamery Package Mfg Co | Pump construction |
US2843049A (en) * | 1954-01-29 | 1958-07-15 | Sherwood Brass Works | Resilient rotor pump or motor |
US2856859A (en) * | 1955-01-07 | 1958-10-21 | Visioneering Company Inc | Pump |
US2911920A (en) * | 1956-08-20 | 1959-11-10 | Samuel P Thompson | Pump with flexible impeller |
US2976811A (en) * | 1958-07-28 | 1961-03-28 | Jabsco Pump Co | Impeller with independent elastomeric blades and sealing means |
US3015283A (en) * | 1958-11-24 | 1962-01-02 | Bayer Ag | Gear pumps and motors |
US3065705A (en) * | 1961-01-16 | 1962-11-27 | Hypro Engineering Inc | Pump with flexible bladed rotor |
US4809992A (en) * | 1987-11-23 | 1989-03-07 | Woodex Bearing Company, Inc. | Rotary shaft seal assembly |
US20160123472A1 (en) * | 2014-06-10 | 2016-05-05 | Sandvik Mining And Construction Oy | Seal of tool and method of sealing |
US9777842B2 (en) * | 2014-06-10 | 2017-10-03 | Sandvik Mining And Construction Oy | Seal of tool and method of sealing |
US11339782B2 (en) | 2020-06-26 | 2022-05-24 | LeimbachCausey, LLC | Multi-chamber impeller pump |
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