US3838954A - Rotary pump with oscillating vanes - Google Patents

Rotary pump with oscillating vanes Download PDF

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Publication number
US3838954A
US3838954A US00339061A US33906173A US3838954A US 3838954 A US3838954 A US 3838954A US 00339061 A US00339061 A US 00339061A US 33906173 A US33906173 A US 33906173A US 3838954 A US3838954 A US 3838954A
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United States
Prior art keywords
casing
shaft
shaped
axis
disks
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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US00339061A
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English (en)
Inventor
N Rapone
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Individual
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Individual
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Filing date
Publication date
Priority claimed from IT1650272A external-priority patent/IT950532B/it
Priority claimed from IT4849873A external-priority patent/IT977547B/it
Application filed by Individual filed Critical Individual
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Publication of US3838954A publication Critical patent/US3838954A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/40—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member
    • F04C2/44—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member with vanes hinged to the inner member
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3448—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member with axially movable vanes

Definitions

  • a rotary pump with vanes oscillating about an axis perpendicular to the rotation axis in the radial plane comprising in combination: one casing having an outer substantially cylindrical shape and an inner spherical shape, a pair of parallel shaped discs, co-axial with the casing and rigid therewith, a separating space between the two discs, ideally obtained by a quadrangular surface rotating about said axis of the casing, and simultaneously describing by its points a cyclic curve, a rotor co-axial with the casing, operated by a prime mover, and a tangent to the top-lines of said shaped discs, a set of vanes each corresponding to said quadrangular surface, received
  • the purpose of this invention is that of embodying a pump which, at parity of occupied space and of available power, offers simultaneously, and by simple means, the advantages of both the displacement pumps and of the centrifugal pumps.
  • a rotary pump comprising in combination a casing having a substantially cylindrical shape, a pair of shaped discs, coaxial with the casing and rigid therewith, a separating space between said two discs, ideally obtained by a quadrangular surface which rotates about said casing axis and simultaneously describes by every one of its points, a cyclic curve, a rotor co-axial with the casing, operated by a prime mover through a transmission shaft and tangent to the top lines of said shaped discs, one set of vanes corresponding to said quadrangular surface and received within slots provided axially in said rotor, suction ports located immediately downstream of each top line of said shaped discs, and communicating with the internal cavity of the rotor shaft, delivery notches machined peripherally immediately upstream of each top line of said shaped discs, and in correspondence with ports machined on the casing and communicating with the conveying scroll.
  • the rotor carries a set of diametrical grooves destined to allow the vanes to oscillate according to the form of the shaped internal surfaces of said discs.
  • the two radial sides of the vanes are such, as to effect constantly the seal on the two surfaces of said discs, while the axial sides of the vanes have the innermost the shape of an arc of circle and the outermost the shave of a sphere, with its centre on the rotor shaft.
  • the peripheral sur face of the space separating the two shaped discs is spherical.
  • FIG. I shows an exploded view of the fundamental elements of the pump
  • FIGS. 2 and 3 show two cross sectional views of the pump, perpendicular to the axis of rotation
  • FIG. 4 shows the mounting detail of one of the vanes
  • FIG. 5 is the cross section V--V of FIG. 2;
  • FIG. 6 is the cross section VI-VI of FIG. 3, with a pair of vanes located in the position shown in dashed line in FIG. 3;
  • FIG. 7 is the cross section VIl--VII of FIG. 3;
  • FIGS. 8, 9 and It show one of the shaped discs in some turned over cross sections. taken along the planes VIII-VIII. IX
  • FIGS. 11, I2 and I3 show three characteristic posi 5 tions of one of the vanes
  • FIG. I4 shows diagrammatically the operative stroke related to FIG. 2, developed on one plane:
  • FIG. shows the detail of the three elements of FIG. I in their operative position.
  • the numeral references I and 2 denote the two discs co-axially mounted.
  • the external faces of the two discs 1 and. 2 are flat, while the internal faces 3 and 4 consist of two identical and superposable surfaces having as directrix a cylindrical sinusoid or other cyclic curve and as generatrix a curve or a straight line r (FIG. 1) having a fixed starting point on the very axis of the cylinder.
  • said cyclic curve is formed, in the drawings, by a very flattened sinusoid which describes two entire periods through the 360 revolution, whereby each of the surfaces 3 and 4 shows two top lines (or maximum convexity lines) L. and two depression lines" (or maximum concavity lines) D.
  • the rotor 5 is interposed, and the lateral symmetrical faces of said rotor disc 5, delimited. in the described example, by conical surfaces, are tangent to the top lines L of said two discs.
  • slots angularly equispaced are provided, and in said slots are inserted an equal number of vanes (four in the exemplicative drawing) 6, 7, 8 and 9 (see also FIGS. 2, 3 and 4) which are capable of oscillating in the radial plane defined by said slots.
  • the outer edge of the vanes is delimited by a spherical surface having a radius r with its centre on the axis 0, and the same spherical surface delimits peripherally the two shaped discs 1 and 2 and the rotor 5 (see FIG. 15).
  • each vane for instance the vane 6, having the same width A, obtains constantly the seal by its lateral edges on the aforesaid surfaces.
  • the vane 6 has its left-hand lateral edge coincident with one of the top lines of the surface 3, while the other lateral edge is located on a depression line of the surface 4.
  • the axis of symmetry B of the vane will be deflected with respect to the straight line E perpendicular to the axis 0 through an angle a which corresponds to one half of the angle 20: between the top line and the depression line.
  • the vanes In order to allow for the vanes the above described oscillations, the vanes have their lower edge, or internal edge, delimited by a cylindrical surface having the ra dius rl and its axis perpendicular to the axis of rotation 0 (FIG. 13). Said edge is inserted into a meridian groove 10 (FIG. 4) of the hub 11 of rotor 5 mounted on the shaft 12 by means of a key 13 of other suitable system.
  • the shaft 12 (see also FIGS. 5, 6 and 7) is joumalled by means of bearings on two parallel plates 14, provided with mounting lugs 15 and spaced apart by the casing 16, which is made in two parts. and fixed to said plates by the bolts l7.
  • the two shaped discs I and 2. in turn, are rendered rigid with the casing by means of the security dowels 18.
  • the internal surface of the easing 16 is spherical so that the upper edge of the vanes will make constantly the seal thereon.
  • a scroll 19 leading to the delivery duct 20 (FIGS. 2 and 3).
  • the shaft 12 (FIGS. 5, 6, 7) is connected to whatsoever prime mover, not shown in the FIGURE which operates the rotor 5.
  • One part of the shaft 12, which serves also the function of the suction duct, is provided with an internal cavity 21 which through the apertures 22 communicates with the suction ports 23 and 24 provided in the shaped disc 1 and angularly spaced through l8().
  • the apertures 22 are in number of four connected by an annular chamber 22a allowing a per manent communication between the duct 21 and the suction ports 23 and 24.
  • apertures 25 communicating with the suction ports 26 and 26a provided in the shaped disc 2, through the annular chamber 25a.
  • the disc 2 is provided with two notches 31 and 32 communicating with the delivery ports 33 and 34 leading to the scroll 19.
  • the delivery notches 27 and 28 of the shaped disc I end in correspondence with the top lines L, while the suction ports 23 and 24 begin a short distance after the top lines L and end at an angular distance of 45 starting from said lines.
  • the operation is as follows (see FIGS. 2, 3 and 14): let assume that the rotor 5 rotates clockwise as shown in FIG. 2, wherein the dotted zones show the suction strokes, while the dashed zones show the delivery strokes.
  • the vane 6 takes the liquid through the suction port 23 in the space delimited by the vane 6, by the shaped disc 1, by the casing ring 16 and by the rotor 5 making the seal in correspondence with the top line L.
  • the suction is due to the fact that the volumes of the spaces downstream of the vanes 6, 7, 8 and 9 increase as shown in FIG. 14.
  • vanes 6, 7, 8 and 9 could also be located tangent to a cylinder co-axial with the axis of rotation. 7
  • the device according to this invention is also capable of other embodiments, f.i. rotary motor, hydraulic drive. compressor, turbine and so forth.
  • a rotary pump with displacement and centrifugal action comprising in combination a cylindrical casing. a shaft, two stationary disks mounted on said shaft coaxially therewith and secured to said casing, each of said disks having a shaped inner surface opposite to one another, a substantially cylindrical rotor disk secured to said shaft between said stationary disks and coaxially therewith and having a plurality of equidistanced radial slots, a plurality of quadrangular vanes received in said slots and adapted to oscillate therein around a point on the axis of said shaft, a suction duct in said shaft, the surfaces of said disks being shaped to form a cyclical sinusoidal surface, means providing suction ports immediately downstream of the crest of the sinusoidal surface near the disk axis, means providing delivery ports immediately upstream of said crest on the periphery of said shaped disks, means providing a plurality of apertures in said shaft duct and communicating with said suction ports in said shaped disks, a peripheral scroll duct duct
  • vanes have two lateral parallel sides continuously sealing on said inner shaped surfaces and two transverse sides having the shape of an arc of circle with its center on the axis of said shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US00339061A 1972-03-14 1973-03-08 Rotary pump with oscillating vanes Expired - Lifetime US3838954A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1650272A IT950532B (it) 1972-03-14 1972-03-14 Pompa rotativa ad azione simulta nea centrifuga e forzata
IT4849873A IT977547B (it) 1973-02-27 1973-02-27 Pompa rotativa a palette oscillanti

Publications (1)

Publication Number Publication Date
US3838954A true US3838954A (en) 1974-10-01

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Application Number Title Priority Date Filing Date
US00339061A Expired - Lifetime US3838954A (en) 1972-03-14 1973-03-08 Rotary pump with oscillating vanes

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US (1) US3838954A (enrdf_load_stackoverflow)
JP (1) JPS48102302A (enrdf_load_stackoverflow)
AR (1) AR193923A1 (enrdf_load_stackoverflow)
AU (1) AU5323173A (enrdf_load_stackoverflow)
BE (1) BE796776A (enrdf_load_stackoverflow)
DD (1) DD103302A5 (enrdf_load_stackoverflow)
DE (1) DE2312634A1 (enrdf_load_stackoverflow)
FR (1) FR2176402A5 (enrdf_load_stackoverflow)
IL (1) IL41730A0 (enrdf_load_stackoverflow)
LU (1) LU67202A1 (enrdf_load_stackoverflow)
NL (1) NL7303491A (enrdf_load_stackoverflow)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961483A (en) * 1975-07-03 1976-06-08 The Boeing Company Composite cycle engine
US3970051A (en) * 1975-05-02 1976-07-20 Kirkman Thomas E Rotary engine device
US4575324A (en) * 1983-05-21 1986-03-11 Sine Pumps, N.V. Rotary fluid pump
US4653446A (en) * 1985-01-14 1987-03-31 Frasca Joseph F Rotary internal combustion engine
US4747764A (en) * 1985-01-14 1988-05-31 Frasca Joseph F Rotary fluid pump
US5404850A (en) * 1992-12-08 1995-04-11 La Bell, Jr.; Oldric J. Rotary combustion engine with oppositely rotating discs
DE19708641A1 (de) * 1997-02-20 1998-09-03 Guenter Dipl Ing Rucho Rotationskolbenmaschine
US6750545B1 (en) 2003-02-28 2004-06-15 Amkor Technology, Inc. Semiconductor package capable of die stacking
WO2004111453A1 (en) * 2003-06-16 2004-12-23 Lg Electronics Inc. Compressor
WO2004111454A1 (en) * 2003-06-16 2004-12-23 Lg Electronics Inc. Compressor
WO2004111390A1 (en) * 2003-06-16 2004-12-23 Lg Electronics Inc. Compressor
US20060048743A1 (en) * 2004-09-07 2006-03-09 Al Hawaj Osama M Axial vane rotary device
US20060078441A1 (en) * 2004-09-30 2006-04-13 Sanyo Electric Co., Ltd. Compressor
CN105736365A (zh) * 2014-12-11 2016-07-06 中国石油化工股份有限公司 起伏活舌恒流泵
RU2651105C1 (ru) * 2017-07-14 2018-04-18 Андрей Валентинович Гришаев Окружная машина (варианты)
CN109538467A (zh) * 2018-09-28 2019-03-29 浙江大学 高性能变量叶片泵
CN110566454A (zh) * 2019-09-18 2019-12-13 北京工业大学 一种无配流平面柱片泵
BE1027697B1 (fr) * 2019-10-21 2021-05-25 Safran Aero Boosters Pompe volumétrique
BE1027698B1 (fr) * 2019-10-21 2021-05-25 Safran Aero Boosters Pompe volumétrique
EP4048868A1 (fr) * 2019-10-21 2022-08-31 Safran Aero Boosters Pompe volumetrique
US12025132B1 (en) * 2019-06-13 2024-07-02 Augusto Florindez Pump having rotor member with axially sliding vanes and a one-way check valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106618A (en) * 1975-12-15 1978-08-15 Haytayan Harry M Nail assemblies

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US167146A (en) * 1875-08-24 Improvement in disk steam-engines
US448334A (en) * 1891-03-17 Rotary pump
US2083560A (en) * 1936-09-14 1937-06-15 Ralph E Grey Pump
US2154457A (en) * 1937-04-06 1939-04-18 Rudolph A Riek Rotary machine
US2436285A (en) * 1946-03-15 1948-02-17 Frank A Booth Motor or pump
US2464736A (en) * 1941-12-18 1949-03-15 Hpm Dev Corp Spherical expansible chamber rotary motor or pump of the axially moving sliding vane type

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US167146A (en) * 1875-08-24 Improvement in disk steam-engines
US448334A (en) * 1891-03-17 Rotary pump
US2083560A (en) * 1936-09-14 1937-06-15 Ralph E Grey Pump
US2154457A (en) * 1937-04-06 1939-04-18 Rudolph A Riek Rotary machine
US2464736A (en) * 1941-12-18 1949-03-15 Hpm Dev Corp Spherical expansible chamber rotary motor or pump of the axially moving sliding vane type
US2436285A (en) * 1946-03-15 1948-02-17 Frank A Booth Motor or pump

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970051A (en) * 1975-05-02 1976-07-20 Kirkman Thomas E Rotary engine device
US3961483A (en) * 1975-07-03 1976-06-08 The Boeing Company Composite cycle engine
US4575324A (en) * 1983-05-21 1986-03-11 Sine Pumps, N.V. Rotary fluid pump
US4653446A (en) * 1985-01-14 1987-03-31 Frasca Joseph F Rotary internal combustion engine
US4747764A (en) * 1985-01-14 1988-05-31 Frasca Joseph F Rotary fluid pump
US5404850A (en) * 1992-12-08 1995-04-11 La Bell, Jr.; Oldric J. Rotary combustion engine with oppositely rotating discs
DE19708641A1 (de) * 1997-02-20 1998-09-03 Guenter Dipl Ing Rucho Rotationskolbenmaschine
US6750545B1 (en) 2003-02-28 2004-06-15 Amkor Technology, Inc. Semiconductor package capable of die stacking
WO2004111390A1 (en) * 2003-06-16 2004-12-23 Lg Electronics Inc. Compressor
WO2004111454A1 (en) * 2003-06-16 2004-12-23 Lg Electronics Inc. Compressor
WO2004111453A1 (en) * 2003-06-16 2004-12-23 Lg Electronics Inc. Compressor
US20060048743A1 (en) * 2004-09-07 2006-03-09 Al Hawaj Osama M Axial vane rotary device
US7140853B2 (en) * 2004-09-07 2006-11-28 Osama M Al Hawaj Axial vane rotary device
US20060078441A1 (en) * 2004-09-30 2006-04-13 Sanyo Electric Co., Ltd. Compressor
US7540724B2 (en) * 2004-09-30 2009-06-02 Sanyo Electric Co., Ltd. Compression member and vane of a compressor
CN105736365A (zh) * 2014-12-11 2016-07-06 中国石油化工股份有限公司 起伏活舌恒流泵
RU2651105C1 (ru) * 2017-07-14 2018-04-18 Андрей Валентинович Гришаев Окружная машина (варианты)
CN109538467A (zh) * 2018-09-28 2019-03-29 浙江大学 高性能变量叶片泵
US12025132B1 (en) * 2019-06-13 2024-07-02 Augusto Florindez Pump having rotor member with axially sliding vanes and a one-way check valve
CN110566454A (zh) * 2019-09-18 2019-12-13 北京工业大学 一种无配流平面柱片泵
BE1027697B1 (fr) * 2019-10-21 2021-05-25 Safran Aero Boosters Pompe volumétrique
BE1027698B1 (fr) * 2019-10-21 2021-05-25 Safran Aero Boosters Pompe volumétrique
EP4048868A1 (fr) * 2019-10-21 2022-08-31 Safran Aero Boosters Pompe volumetrique

Also Published As

Publication number Publication date
DE2312634A1 (de) 1973-09-27
BE796776A (fr) 1973-07-02
JPS48102302A (enrdf_load_stackoverflow) 1973-12-22
AR193923A1 (es) 1973-05-31
DD103302A5 (enrdf_load_stackoverflow) 1974-01-12
NL7303491A (enrdf_load_stackoverflow) 1973-09-18
FR2176402A5 (enrdf_load_stackoverflow) 1973-10-26
AU5323173A (en) 1974-09-19
LU67202A1 (enrdf_load_stackoverflow) 1973-06-15
IL41730A0 (en) 1973-05-31

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