US2706016A - Friction pump - Google Patents
Friction pump Download PDFInfo
- Publication number
- US2706016A US2706016A US225620A US22562051A US2706016A US 2706016 A US2706016 A US 2706016A US 225620 A US225620 A US 225620A US 22562051 A US22562051 A US 22562051A US 2706016 A US2706016 A US 2706016A
- Authority
- US
- United States
- Prior art keywords
- discs
- air
- stabilizer
- space
- 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
Links
Images
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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
- F04D17/161—Shear force pumps
Definitions
- the invention refers to a friction pump for centrifuging fluids.
- the new pump of my invention is characterized by a plurality of discs of porous material which are arranged to rtate--in concentrically superposed spaced relationon the same shaft.
- the space between two directly adjacent superposed porous discs forms the centrifuging space in which the fluid is centrifuged towards the peripheral zone of the space.
- the pores of the discs form the only intake passage for the fluid to be pumped entering said centrifuging space.
- Fig. 1 shows a side view of the blower as arranged on the shaft of an electric motor, shown partly in view and partly in vertical section.
- Fig. 2 also shows a side view of the blower and in the-same manner, but with a modification of details.
- Fig. 3 shows another modification of a detail, in view.
- Fig. 4 shows-in reduced scale-a view of the blower of Fig. 1 while in rotation, and also shows the possible arrangement of such a blower in a casing for deflecting the centrifugally ejected air.
- This stabilizer is an additional disc, placed halfway between the two rotating air-intake discs.
- the air which enters into the pumping space meets the rotating surface of the stabilizer and is deflected towards the ejector nozzle.
- spacer discs of cork were most suitable, providing a good friction grip on the filter paper.
- the arbor 1 has one sleeve 5 which fits over the shaft 3. Joining this sleeve is a shoulder 6 and a shaft 7.
- the shaft 7 hasan outside thread 8 and a cover plate 9 which can be screwed on to this thread 8.
- Arranged at the shoulder 6 is the one filter paper disc 10, then follows a cork spacer 11, then follows the stabilizer 12, then follows another cork spacer 13, then follows the other air-intake disc 14 and they all are held together between the shoulder 6 and the cover plate 9.
- the rotor may bev installed in the casing of a vacuum cleaner as its air propelling element, its filtering element or both.
- Friction pump for centrifuging fluids comprising a rotatable shaft, a plurality of concentrically superposed porous discs so attached to said shaft that the pores of said discs form the only intake passage for the fluid to be pumped; the space between two directly adjacent superposed porous discs forming the centrifilging space in which the fluid is centrifuged towards the peripheral zone of said centrifuging space.
- Friction. pump as claimed in claim 1, in which the porosity of the material of the discs is such that the pores offer enough flow resistance to throttle the flow of a gas passing through them, whereby a continuous partial vacuum is maintained in the centrifuging space when the gas is centrifuged towards the peripheral zone of that space.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
April 1955 P. SCHLUMBOHM 2,706,016
FRICTION PUMP Filed May 10, 1951 2,706,016 FRICTION PUMP Peter Schlumbohm, New York, N. Y. Application May 10, 1951, Serial No. 225,620
1 2 Claims. ((1183-63) The invention refers to a friction pump for centrifuging fluids. The new pump of my invention is characterized by a plurality of discs of porous material which are arranged to rtate--in concentrically superposed spaced relationon the same shaft. The space between two directly adjacent superposed porous discs forms the centrifuging space in which the fluid is centrifuged towards the peripheral zone of the space. The pores of the discs form the only intake passage for the fluid to be pumped entering said centrifuging space.
The invention is illustrated by way of examples in the Fig. l-Fig. 4 of the accompanying drawings.
Fig. 1 shows a side view of the blower as arranged on the shaft of an electric motor, shown partly in view and partly in vertical section.
Fig. 2 also shows a side view of the blower and in the-same manner, but with a modification of details.
Fig. 3 shows another modification of a detail, in view.
Fig. 4 shows-in reduced scale-a view of the blower of Fig. 1 while in rotation, and also shows the possible arrangement of such a blower in a casing for deflecting the centrifugally ejected air.
My very first experiment was with two die-cut circles of 11 /2" diameter, spaced /2" from each other. The
pattern of the two rotating discs was as shown in Fig. 4. Each disc was deformed into the geometrical pattern of a cone and both discs together thus showed during rotation the geometrical pattern of a double cone with a small free space between the circumferential edges. This free space formed the ejector nozzle.
Such a rotor actually rides on the load. The air rushing in through the permeable paper walls partially breaks the vacuum in a very desirable way and the ejector nozzle never becomes a handicap as a throttle. Also by avoiding an extreme vacuum and by operating with a partial vacuum, the side walls of the pumping space are not brought too near to each other, which would limit the flow of air through said pumping space and which would cause flow resistance. The geometrical pattern of a double cone for the two rotating discs is ideal from the point of aerodynamics. Only a partial vacuum will produce this geometrical pattern. Using a porous material for these rotating discs and letting the pores of the material form the only intake passage for the fluid to be pumped is my way of producing and balancing such a partial vacuum.
In the application of the invention to air-blowers, where it is desirable not only to circulate air but also to filter the air, this arrangement is at the same time very effective to filter the air from dust when the air passes through these rotating discs of Filter Paper into the pumping s ace.
My further experiments showed that the control of the air flow and the etficiency of the apparatus could be greatly improved by providing what I call a stabilizer." This stabilizer is an additional disc, placed halfway between the two rotating air-intake discs. One must realize that the air entering through the two rotating outer discs meets head-on in the pumping space and thus creates eddying currents. These eddying currents result in an irregular air flow at the circumferential ejector nozzle, causing fluttering of the edges of the paper discs and resulting in noise. By introducing the stabilizer, the air which enters into the pumping space meets the rotating surface of the stabilizer and is deflected towards the ejector nozzle. Introducing such a stabilizer also makes it possible to double the spacing between the two outer discs. It was further found that this stabilizer was made still more workable by the greater stiffness produced bygiapplying more than one paper disc as stabilizer, for instance, as shown in Figure 1. a set nited rates i atent O ice of four paper discs. These four paper discs may be spaced from each other by thin spacers as shown in Figure 2. Furthermore, it was found that varied effects on the air flow of the pumped air could be obtained by making the stabilizer either of the same diameter as the outer disc, as shown in Figure l, or by making the stabilizer of a smaller diameter than the outer disc as shown in Figure 2 or by making the stabilizer of larger diameter as shown in Figure 3.
I found further that spacer discs of cork were most suitable, providing a good friction grip on the filter paper.
I further invented a special arbor for holding the rotor together and for mounting it on the shaft of a driving motor.
Explaining the details of Figure 1, will explain the details of the other figures.
In Figure 1, an arbor 1 is shown mounted and fixated bya set screw 2 on'the driving shaft 3 of an electric motor 4. k
The arbor 1 has one sleeve 5 which fits over the shaft 3. Joining this sleeve is a shoulder 6 and a shaft 7. The shaft 7 hasan outside thread 8 and a cover plate 9 which can be screwed on to this thread 8. Arranged at the shoulder 6 is the one filter paper disc 10, then follows a cork spacer 11, then follows the stabilizer 12, then follows another cork spacer 13, then follows the other air-intake disc 14 and they all are held together between the shoulder 6 and the cover plate 9.
In Figure 2, the same arrangement is shown except that three extra spacers 15 are arranged within the stabilizer 12. Alsonew in Figure 2 are stapling wires 16 which hold the entire rotor together so that the rotor may be offered as a new product on the market as an entity and replacement part. Such a rotor would comprise the outer discs, the spacers and the stabilizer.
One of the greatest advantages of my new blower is its safety, especially its safety for children. Following the invention, a material is chosen for the rotating discs which will not form a cutting edge. Moreover, in manufacturing these discs, I sandpaper the edge of the discs to make it completely non-cutting.
Another advantage is the cleanliness of the blower. The air-intake discs, due to their filtering effect, become dirtyand can be replaced by fresh filter paper discs. Replacing the rotor by a spare part rotor, such as shown in Figure 2, does away with the difficult job as now presented of cleaning the standard electric fan.
The rotor may bev installed in the casing of a vacuum cleaner as its air propelling element, its filtering element or both.
I claim as my'invention:
1. Friction pump for centrifuging fluids, comprising a rotatable shaft, a plurality of concentrically superposed porous discs so attached to said shaft that the pores of said discs form the only intake passage for the fluid to be pumped; the space between two directly adjacent superposed porous discs forming the centrifilging space in which the fluid is centrifuged towards the peripheral zone of said centrifuging space.
2. Friction. pump as claimed in claim 1, in which the porosity of the material of the discs is such that the pores offer enough flow resistance to throttle the flow of a gas passing through them, whereby a continuous partial vacuum is maintained in the centrifuging space when the gas is centrifuged towards the peripheral zone of that space.
References Cited in the file of this patent UNITED STATES PATENTS Wales Mar. 24, 1953
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US225620A US2706016A (en) | 1951-05-10 | 1951-05-10 | Friction pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US225620A US2706016A (en) | 1951-05-10 | 1951-05-10 | Friction pump |
Publications (1)
Publication Number | Publication Date |
---|---|
US2706016A true US2706016A (en) | 1955-04-12 |
Family
ID=22845572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US225620A Expired - Lifetime US2706016A (en) | 1951-05-10 | 1951-05-10 | Friction pump |
Country Status (1)
Country | Link |
---|---|
US (1) | US2706016A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2787412A (en) * | 1955-04-20 | 1957-04-02 | Schlumbohm Peter | Air blower |
US2856117A (en) * | 1956-05-09 | 1958-10-14 | Schlumbohm Peter | Centrifugal blowers |
US2877865A (en) * | 1953-05-13 | 1959-03-17 | Schlumbohm Peter | Method of pumping fluids centrifugally |
US2909909A (en) * | 1954-07-14 | 1959-10-27 | Schlumbohm Peter | Apparatus for evaporating a liquid under reduced pressure |
US2910223A (en) * | 1955-05-02 | 1959-10-27 | Schlumbohm Peter | Friction pumps |
US2954919A (en) * | 1958-02-26 | 1960-10-04 | Schlumbohm Peter | Method and apparatus for increasing the pumping effect of a rotating disc |
US3018896A (en) * | 1958-03-12 | 1962-01-30 | Gewiss Lucien Victor | Fluid propelling and filtering apparatus |
US3071311A (en) * | 1958-12-15 | 1963-01-01 | Schlumbohm Peter | Centrifugal friction pump |
US3130545A (en) * | 1958-11-04 | 1964-04-28 | Schlumbohm Peter | Turbine-motors |
US3201620A (en) * | 1959-12-21 | 1965-08-17 | Earle W Balientine | Triboelectric generator for ionizing air |
US3212857A (en) * | 1960-05-23 | 1965-10-19 | Buckau Wolf Maschf R | Counter-current extraction apparatus |
US3260039A (en) * | 1962-11-23 | 1966-07-12 | Gen Dynamics Corp | Centrifugal filter |
US3400883A (en) * | 1966-10-17 | 1968-09-10 | Pitney Bowes Inc | Fluid pump |
US4292055A (en) * | 1975-11-25 | 1981-09-29 | Castella Pierre M T De | Purifier for gaseous fluids |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1408736A (en) * | 1920-07-02 | 1922-03-07 | Hernu Henri | Apparatus for purifying and treating gases |
US1831369A (en) * | 1928-01-07 | 1931-11-10 | Schirp Alois | Rotatable plate type filter for gases |
US1854427A (en) * | 1930-07-29 | 1932-04-19 | Air Way Electric Appl Corp | Air-porous paper and process of making same |
US1926933A (en) * | 1928-11-22 | 1933-09-12 | American Air Filter Co | Air filter |
US1956587A (en) * | 1932-03-04 | 1934-05-01 | Bard Parker Company Inc | Scissors |
US2034323A (en) * | 1933-10-16 | 1936-03-17 | Bernard Renee | Air cleaner |
US2223672A (en) * | 1938-10-22 | 1940-12-03 | Callihan Walter Greasham | Air circulating fan |
US2272746A (en) * | 1940-10-02 | 1942-02-10 | Gen Electric | Air purifying unit |
US2351356A (en) * | 1943-12-24 | 1944-06-13 | Federal Mogul Corp | Propeller inhibitor |
US2462476A (en) * | 1945-12-21 | 1949-02-22 | Dowick Benjamin | Device for mounting selective multiple pulleys upon an electric motor drive shaft |
US2632598A (en) * | 1950-04-05 | 1953-03-24 | Theodore Backer | Centrifugal blower |
-
1951
- 1951-05-10 US US225620A patent/US2706016A/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1408736A (en) * | 1920-07-02 | 1922-03-07 | Hernu Henri | Apparatus for purifying and treating gases |
US1831369A (en) * | 1928-01-07 | 1931-11-10 | Schirp Alois | Rotatable plate type filter for gases |
US1926933A (en) * | 1928-11-22 | 1933-09-12 | American Air Filter Co | Air filter |
US1854427A (en) * | 1930-07-29 | 1932-04-19 | Air Way Electric Appl Corp | Air-porous paper and process of making same |
US1956587A (en) * | 1932-03-04 | 1934-05-01 | Bard Parker Company Inc | Scissors |
US2034323A (en) * | 1933-10-16 | 1936-03-17 | Bernard Renee | Air cleaner |
US2223672A (en) * | 1938-10-22 | 1940-12-03 | Callihan Walter Greasham | Air circulating fan |
US2272746A (en) * | 1940-10-02 | 1942-02-10 | Gen Electric | Air purifying unit |
US2351356A (en) * | 1943-12-24 | 1944-06-13 | Federal Mogul Corp | Propeller inhibitor |
US2462476A (en) * | 1945-12-21 | 1949-02-22 | Dowick Benjamin | Device for mounting selective multiple pulleys upon an electric motor drive shaft |
US2632598A (en) * | 1950-04-05 | 1953-03-24 | Theodore Backer | Centrifugal blower |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2877865A (en) * | 1953-05-13 | 1959-03-17 | Schlumbohm Peter | Method of pumping fluids centrifugally |
US2909909A (en) * | 1954-07-14 | 1959-10-27 | Schlumbohm Peter | Apparatus for evaporating a liquid under reduced pressure |
US2787412A (en) * | 1955-04-20 | 1957-04-02 | Schlumbohm Peter | Air blower |
US2910223A (en) * | 1955-05-02 | 1959-10-27 | Schlumbohm Peter | Friction pumps |
US2856117A (en) * | 1956-05-09 | 1958-10-14 | Schlumbohm Peter | Centrifugal blowers |
US2954919A (en) * | 1958-02-26 | 1960-10-04 | Schlumbohm Peter | Method and apparatus for increasing the pumping effect of a rotating disc |
US3018896A (en) * | 1958-03-12 | 1962-01-30 | Gewiss Lucien Victor | Fluid propelling and filtering apparatus |
US3130545A (en) * | 1958-11-04 | 1964-04-28 | Schlumbohm Peter | Turbine-motors |
US3071311A (en) * | 1958-12-15 | 1963-01-01 | Schlumbohm Peter | Centrifugal friction pump |
US3201620A (en) * | 1959-12-21 | 1965-08-17 | Earle W Balientine | Triboelectric generator for ionizing air |
US3212857A (en) * | 1960-05-23 | 1965-10-19 | Buckau Wolf Maschf R | Counter-current extraction apparatus |
US3260039A (en) * | 1962-11-23 | 1966-07-12 | Gen Dynamics Corp | Centrifugal filter |
US3400883A (en) * | 1966-10-17 | 1968-09-10 | Pitney Bowes Inc | Fluid pump |
US4292055A (en) * | 1975-11-25 | 1981-09-29 | Castella Pierre M T De | Purifier for gaseous fluids |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2706016A (en) | Friction pump | |
US4408952A (en) | Lateral channel pump | |
US3730642A (en) | Cooling means for motor of a wet pick-up vacuum sweeper | |
US2478074A (en) | Sanding machine | |
US2143144A (en) | Vacuum cleaner | |
US4350305A (en) | Micro-mill-mixer | |
US2135036A (en) | Vacuum cleaner | |
US2197120A (en) | Filter | |
US2314986A (en) | Centrifugal separator | |
US2910223A (en) | Friction pumps | |
US2616519A (en) | Inertia type air cleaning device | |
JPH1199097A (en) | Vacuum cleaner | |
US2470319A (en) | Pump | |
US1505564A (en) | Air-cleaning device | |
US2397718A (en) | Centrifugal pump mechanism | |
US1418704A (en) | Compound turbine blower | |
US2188031A (en) | Centrifugal separator | |
US2228129A (en) | Filter | |
US3746173A (en) | Liquid separator | |
KR101309084B1 (en) | With double blade to sirocco fan | |
US2093082A (en) | Vacuum cleaner | |
US2877865A (en) | Method of pumping fluids centrifugally | |
US2787412A (en) | Air blower | |
CN111022348A (en) | Single-side air inlet type centrifugal fan and device with same | |
US2072033A (en) | Centrifugal pump |