US3165064A - Flow-reversal propeller pump - Google Patents
Flow-reversal propeller pump Download PDFInfo
- Publication number
- US3165064A US3165064A US299898A US29989863A US3165064A US 3165064 A US3165064 A US 3165064A US 299898 A US299898 A US 299898A US 29989863 A US29989863 A US 29989863A US 3165064 A US3165064 A US 3165064A
- Authority
- US
- United States
- Prior art keywords
- passage
- liquid
- annular
- impeller
- section
- 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
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D3/00—Axial-flow pumps
Definitions
- United States Patent The present invention refers to a propeller pump fit for reversing the flow direction of a liquid.
- centrifugal pumps of proper head so as to secure a sufficient 'minimum pressure to enable a constant uniform flow of the treatment bath through the textile material to be treated, and which is wound up or anyway arranged on Considering the particular features and characteristics of the centrifugal pumps (which are not reversible in that the reversal of their rotation-direction does not reverse; too, the centrifugal pumps
- the propeller pump according to the invention and having at least a propeller member associated with a diffuser within an open chamber in axial opposite positions, is characterized in that the back opening of said chamber is ring-shaped and connected to a semitoroidal annular chamber, said annular chamber deflecting the liquid flow of about 180 and directing it, in countercurrent to the pump impeller, towards an annular opening coaxial to the chamber front opening of the semitoroidal annular chamber whose other opening is the second opening of both pump openings coaxial to the pump impeller, with which there are associated reversal means to cause reversal of the impeller rotation direction.
- An advantageous embodiment of the propeller pump according to the invention has three coaxial members, the middle member thereof forming the impeller chamher and being connected at its back end to a semitoroidal annular pipe fitting, which deflects the liquid flow of about 180; the impeller chamber has at its front end a pipe fitting with two openings, that is one placed on the impeller axis and the other (annular-shaped opening) coaxial to the first one.
- the limited head of such pumps can be easily increased by providing an impeller with two or more propeller members, and placing, moreover, in the semitoroidal pipe fitting or near thereto baffle members to control the liquid flow deflection so as to have small pressure losses.
- FIGURE 1 is an axial section of the pump
- FIGURE 2 is a diagrammatic axial section view of the pump shown in FIGURE 1, and as fitted to feed a treatment tank.
- two propellers 12 and 14 are fittedon the shaft 10; the propellers 12 and 14 are arranged so as to form a single unit constituting the impeller, which on its front side is provided with a nose cap 16 associated with a first diffuser 13.
- a second diffuser 20 is inserted between the propellers 12 and 14, and serves to convey the liquid flow from one propeller to the other.
- the pump stator is constituted by three complementary members A, B, C, which are arranged side by side and mechanically interfitted so as to form a single body secured to the machine plate D.
- The-first of such members constitutes a pipe fitting for the pump pipes, and has a first circular opening 22, which is coaxial to the axis of pump shaft 10 and wherein the blades of diffuser 18, as mentioned above, are arranged and suitably secured to an annular wall 24, defining the outline of opening 22.
- a second annular opening 26 is provided in this first complementary member A, this said second opening being defined by an annular wall 28 constituting the outside wall of said complementary member A and having at its edge a flange 30 to connect the pump pipe as above referred to. It is to be understood that the annular opening 26 is coaxial to circular opening 22.
- the fitting member A forms at one of its ends a header between the pump and the associated pipes, said header having at its other end a second flange 32, which can be coupled to a counterfiange-34 of the middle comple-
- the middle complementary member B has a cylindrical housing 36, wherein are placed the propellers 12 and 3 a 14 and baffle 20.
- This housing is connected, practically without any discontinuance, to the ends of annular wall 24 of header member A, and is associated with a frustoconical annular chamber 38 formed by the associated walls 443 and 42, which are substantially parallel to each other so that the inside wall 46 connects at one of its ends to the front end of housing 36 and the wall 42 connects at one of its ends to the end of header wall 28.
- the third complementary member C constitutes a baffle member and has a head 44 holding, the tight members of the shaft lull, said head 44 being suitably secured to the pump support frame D.
- This head has at its periphery the semi-circular outside wall 46 and inside wall 48 defining an annular semitoroidal chamber 58, whose openings are connected, respectively: one to the rear part of annular chamber of propellers 12 and 14, and the other-outside the first oneto the already considered annular chamber 38.
- the middle member B and the baflle member C provide at their adjoining ends the flanges 52 and 54- for their reciprocal connection.
- This pump arrangement provides the openings 22 and 26 to enable the liquid to flow, and are coaxial thereto so as to allow the liquid flow to take place in one direction-as well as in the opposite direction, (see the arrows in FIG. 1) by simple reversal of the rotation direction of shaft and therefore of theimpeller. If the pump is driven by an electric motor (as in the practice), reversal of the pump rotation direction is caused only by reversal of the electric motor feeding;
- the blades of diifusers 18 and 24 direct the liquid easy and simple to embody, compact and small, and its threads in the required direction with respect to the impeller so as to cause the liquid circulation between the inlet and outlet openings with a good head in order to achieve a suitable etliciency, which is in practice always greater than that of a conventional propeller pump.
- the head of the pump according to the invention is established by the sum of the first andsecond propeller heads, and it remains unaltered and independent from the rotation direction of the impeller itself, that is when the impeller performs its rotation in a given direction, then the propeller 12, upon receiving the liquid as sucked from propeller 14, increases the pressure of this liquid and when occurring reversal of the rotation direction, propeller 14 increases the pressure of the liquid as sucked by propeller 12.
- connection of the pump as above mentioned to the associated utilization member can take place, e.g. as illustrated in FIG. 2, wherein a pipe fittingG constituted by two walls 60 (inside wall) and 62 (outside wall) is provided between the pump'and the bottom of a tank F.
- a pipe fittingG constituted by two walls 60 (inside wall) and 62 (outside wall) is provided between the pump'and the bottom of a tank F.
- first wall defines a pipe 6d connected to the opening 22 and the second wall defines an annular pipe connected in turn to the opening 26.
- the inside wall 60 terminates at its end with a diffuser 68 extending for a length upwards from the tank bottom-
- the outside wall 62 is, on the contrary, tightly secured at its edge 70 to the edge of a corresponding opening machined in the tank bottom so that the annular'pipe 66 ends at this tank bottom.
- a regulatable control member H is interposed between pipes 64 and 66 so as to establish a direct communication between said two pipes, and the passage opening can be regulated in a proper way so as to control the liquid circulation Within the tank F.
- pipe fitting G connecting the pump totank F or to any other container e.g. an autoclave
- any other container e.g. an autoclave
- this pipe fitting can be rectilinear, curvilinear or also mixtilinear, and the wall 60 defining the insidepipe 64in lieu of terminating with the dilfuser 68--can extend into the container to be associated with other members, e.g. a header or the like.
- the regulatable control valve H besides allow-v ing the regulation of the pump head and pump delivery, enables also the pump exploitation at its maximum head and delivery.
- this invention covers also, in general, the chemical equipment relating thereto, and particularly an apparatus to treat yarns embodying the pump in accordance with the present invention.
- a liquidfiow reversing propeller pump including a liquid inlet and outlet section, an impeller section and a flow directionreversing section, said flow direction reversing section comprising a member having a semi-toroidal passage therethrough and having an inlet end and an outlet end facing in the same general direction, said semitoroidal passage having a substantial radius of curvature to provide for liquid direction flow reversal with a minimum of turbulence, saidliquid inlet and outlet section comprising a generally cylindrical inlet passage and'an' annular liquid outlet passage surrounding said inlet passage and separated therefrom by a common wall member; said impeller section including an annular pumping passage communicating at one end with the inlet passage other end with the outlet end of said flow direction reversing section; an impeller shaft extending axially through the annular pumping passage, a pair of axially spaced liquid impeller means secured to rotate with the impeller shaft, and a liquid flow diffuser member positioned in said annular pumping passage between said pair of spaced impair
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2626162 | 1962-08-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3165064A true US3165064A (en) | 1965-01-12 |
Family
ID=11219081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US299898A Expired - Lifetime US3165064A (en) | 1962-08-09 | 1963-08-05 | Flow-reversal propeller pump |
Country Status (3)
Country | Link |
---|---|
US (1) | US3165064A (es) |
DE (1) | DE1453780A1 (es) |
ES (1) | ES290302A1 (es) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3467015A (en) * | 1968-03-28 | 1969-09-16 | Westinghouse Electric Corp | Hydraulic pump-motor combination |
DE3816280A1 (de) * | 1988-05-12 | 1989-11-23 | Klein Schanzlin & Becker Ag | Gehaeuseteil fuer kreiselpumpen |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1588588A (en) * | 1925-04-10 | 1926-06-15 | Teunis P Kleyn | Washing machine |
US1995405A (en) * | 1933-04-26 | 1935-03-26 | Thorley Arnold Edward | Dyeing, washing, and like apparatus |
US2176220A (en) * | 1937-01-11 | 1939-10-17 | Bendix Home Appliances Inc | Washing machine |
US2322743A (en) * | 1940-04-05 | 1943-06-29 | Butterworth H W & Sons Co | Package dyeing machine |
US2482319A (en) * | 1941-06-07 | 1949-09-20 | Casse Marcel | Machine for the wet treatment of textile materials or the like |
FR971613A (fr) * | 1948-09-14 | 1951-01-19 | Turbomachine génératrice ou réceptrice à écoulement axial | |
US2584878A (en) * | 1944-01-31 | 1952-02-05 | Power Jets Res & Dev Ltd | Constant pressure cycle continuous flow combustion gas turbine power plant |
US2627164A (en) * | 1949-01-03 | 1953-02-03 | Halpern Ernst | Rotary pump and turbine hydraulic coupling |
DE885050C (de) * | 1950-11-29 | 1953-08-03 | Bruno C Grosskopf | Axial-Kreiselmaschine, insbesondere Pumpe, Kompressor u. dgl. |
US2978169A (en) * | 1957-10-03 | 1961-04-04 | Bristol Siddeley Engines Ltd | Means for preventing the accumulation of ice or other solids in ducts |
GB870262A (en) * | 1956-12-27 | 1961-06-14 | Mario Scholl | Improvements in or relating to high speed axial-flow pumps |
US3045895A (en) * | 1957-01-30 | 1962-07-24 | Parsons C A & Co Ltd | Gas circulatory means |
US3078671A (en) * | 1959-08-03 | 1963-02-26 | Houten Inc Van | Gas turbine power plant |
-
1963
- 1963-07-16 ES ES0290302A patent/ES290302A1/es not_active Expired
- 1963-08-05 US US299898A patent/US3165064A/en not_active Expired - Lifetime
- 1963-08-07 DE DE19631453780 patent/DE1453780A1/de active Pending
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1588588A (en) * | 1925-04-10 | 1926-06-15 | Teunis P Kleyn | Washing machine |
US1995405A (en) * | 1933-04-26 | 1935-03-26 | Thorley Arnold Edward | Dyeing, washing, and like apparatus |
US2176220A (en) * | 1937-01-11 | 1939-10-17 | Bendix Home Appliances Inc | Washing machine |
US2322743A (en) * | 1940-04-05 | 1943-06-29 | Butterworth H W & Sons Co | Package dyeing machine |
US2482319A (en) * | 1941-06-07 | 1949-09-20 | Casse Marcel | Machine for the wet treatment of textile materials or the like |
US2584878A (en) * | 1944-01-31 | 1952-02-05 | Power Jets Res & Dev Ltd | Constant pressure cycle continuous flow combustion gas turbine power plant |
FR971613A (fr) * | 1948-09-14 | 1951-01-19 | Turbomachine génératrice ou réceptrice à écoulement axial | |
US2627164A (en) * | 1949-01-03 | 1953-02-03 | Halpern Ernst | Rotary pump and turbine hydraulic coupling |
DE885050C (de) * | 1950-11-29 | 1953-08-03 | Bruno C Grosskopf | Axial-Kreiselmaschine, insbesondere Pumpe, Kompressor u. dgl. |
GB870262A (en) * | 1956-12-27 | 1961-06-14 | Mario Scholl | Improvements in or relating to high speed axial-flow pumps |
US3045895A (en) * | 1957-01-30 | 1962-07-24 | Parsons C A & Co Ltd | Gas circulatory means |
US2978169A (en) * | 1957-10-03 | 1961-04-04 | Bristol Siddeley Engines Ltd | Means for preventing the accumulation of ice or other solids in ducts |
US3078671A (en) * | 1959-08-03 | 1963-02-26 | Houten Inc Van | Gas turbine power plant |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3467015A (en) * | 1968-03-28 | 1969-09-16 | Westinghouse Electric Corp | Hydraulic pump-motor combination |
DE3816280A1 (de) * | 1988-05-12 | 1989-11-23 | Klein Schanzlin & Becker Ag | Gehaeuseteil fuer kreiselpumpen |
Also Published As
Publication number | Publication date |
---|---|
DE1453780A1 (de) | 1969-02-06 |
ES290302A1 (es) | 1963-08-16 |
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