US3514221A - Pump - Google Patents

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Publication number
US3514221A
US3514221A US743577A US3514221DA US3514221A US 3514221 A US3514221 A US 3514221A US 743577 A US743577 A US 743577A US 3514221D A US3514221D A US 3514221DA US 3514221 A US3514221 A US 3514221A
Authority
US
United States
Prior art keywords
trunconical
axis
casing
hub
bellows
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
Application number
US743577A
Other languages
English (en)
Inventor
Jean Hasquenoph
Marc Pouliquin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Application granted granted Critical
Publication of US3514221A publication Critical patent/US3514221A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/143—Cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F04B1/124—Pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F04B1/124—Pistons
    • F04B1/126—Piston shoe retaining means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • 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
    • F04C9/00—Oscillating-piston machines or pumps
    • F04C9/005—Oscillating-piston machines or pumps the piston oscillating in the space, e.g. around a fixed point
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
    • F04B23/106—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type being an axial piston pump

Definitions

  • a fixed casing comprising a wall limited interiorly by a surface in the form of a spherical crown, and, at the interior of this wall, a trunconical annular surface centred at the centre of this crown and having the same axis as this crown; a hub mounted in the casing in a manner to be able to pivot about that axis and connected to a drive shaft; a wobble member mounted on this hub in a manner to be able to pivot with respect to the hub about an axis cutting the axis of the hub at the centre mentioned above, this member comprising a trunconical surface centred at said centre and adapted to roll on the trunconical surface of the casing by fitting against that surface along a straight line segment; a piece connected to one of the two trun
  • An object of the present invention is to provide a pumping device having a plurality of stages which is of relatively small volume and in which the pumped (or compressed) fluid remains totally isolated from the bearings and other members subjected to greasing and, preferably in addition, from the atmosphere.
  • a pumping device of the type described above comprises in addition: cylinders having axes parallel to the axis of the hub and disposed in the part, of the fixed casing, situated, with respect to the wobble member, on the side opposite to the side where the trunconical surface of the casing is located; pistons mounted slidably in these cylinders; rods connecting these pistons to the wobble member; and means for making the outlet of the pumping stage formed by the two above-mentioned volumes of trunconical deformation communicate with at least one of these cylinders, preferably by passing through appropriate openings provided on the one hand in the wobble member and on the other hand in the piston corresponding to this cylinder.
  • FIGS. 1 and 2 show-respectively in axial section along I-I of FIG. 2, and in transverse section along II-II of FIG. 1, a compressor established according to the invention
  • This compressor comprises a first stage identical to the pumping device described in the French patent mentioned above: this stage, of the rotary-rocking or wobble type, comprises a casing 1 into which the fluid to be compressed is admitted through a conduit 2 and out of which it is evacuated through a conduit 3, this transfer being generated by a wobble member 4 connected to a rotary drive shaft '5.
  • a wall limited interiorly by a surface 7 having the form of a spherical zone of centre 0 and of axis AB extending symmetrically on both sides of a diametrical plane, and
  • the wobble member 4 comprises:
  • a sleeve 4 mounted with the aid of bearings 12 on a bent extension 10 of the hub 10 in a manner to be able to rotate about an axis CD inclined with respect to the axis AB and cutting this latter axis at the point 0,
  • a fixed partition 16 extends along an axial plane between two opposite portions of the two surfaces 7 and 15 and passes through an opening 17 provided in the member 4.
  • An electric driving motor whose stator 33 is mounted in the casing 1 and whose rotor 34 is rigid with the shaft 5.
  • the coupling in question is arranged in a manner not to make a hole in the walls of the working chamber of the first stage: in other words, the cylinders 36 are disposed in the part, of the casing 1, disposed axially, with respect to the wobble member 4, on the side opposite to the side where this working chamber is located.
  • each of the bellows 20 and 39 undergoes only slight flexions of the conical type in this sense that, with respect to one of the terminal bases considered as fixed, its other terminal base undergoes solely the flexions corresponding to a conical gravitation of its 4 axis about the axis of this fixed base, to the exclusion of any other deformations of compression, expansion or torsion.
  • the mean diameter of these bellows is in general comprised between 5 and 20 centimeters, the radial dimension of each wave being of the order of a quarter of the radius, and its axial dimension of the order of an eighth of the radius, and each wave having approximately the form of an S composed of two semi-circles connected by parallel rectilinear portions.
  • a single bellows can be used for each rod, enveloping this rod entirely, the two ends of this single bellows being connected in a fluid-tight manner, preferably by welding, on the one hand to the member 4 and on the other hand to the corresponding piston: such a variant is particularly advantageous when the rods are short. In such a case, it can be opportune not to fold the central zone of the bellows, which is then formed by a rigid tube connected to two folded portions.
  • the active volumes of the cylinders 37 are served by inlet valves 48 (FIG. 2) and outlet valves 49 actuated automatically by the reciprocation of the pistons and disposed so that the fluid drawn into one of these volumes is then delivered towards the exterior of the machine or into another, smaller volume, for its subsequent compression.
  • the gas drawn in at 2 undergoes successively before its outlet from the machine at 45 five compressions: the first compression is generated in the first trunconical deformation stage of this machine, exactly as in the known compressor of the conical or wobbling type of the French patent mentioned above; the slightly compressed gas resulting from this first compression is collected in the buffer volume situated between the wobble member 4 and the pistons 36 and it is drawn out of this volume successively into the four other stages of the machine which are formed respectively by the two first cylinders, the third, the fourth and the fifth cylinders (as in a conventional barrel compressor).
  • a pumping device comprising: a fixed casing comprising a wall limited interiorly by a surface in the form of a spherical crown, and, at the interior of this wall, a trunconical annular surface centered at the centre of said crown and having the same axis as said crown; a hub mounted in said casing in a manner to be able to pivot about said axis, said hub being connected to a drive shaft; a wobble member mounted on this hub in a manner to be able to pivot with respect to said hub about an axis cutting the axis of said hub at said centre, said member comprising a trunconical surface centred at said centre and adapted to roll on the trunconical surface of the casing and fitting against said trunconical surface of the casing along a straight line segment; a piece connected to one of the two trunconical surfaces and limited exteriorly by a surface, in the form of a spherical crown centred at said centre, disposed conjointly along the circle
  • a pumping device comprising: a fixed casing comprising a wall limited interiorly by a surface in the form of a spherical crown, and, at the interior of this wall, a trunconical annular surface centred at the centre of said crown and having the same axis as said crown; a hub mounted in said casing in a manner to be able to pivot about said axis, said hub being connected to a drive shaft; a wobble member mounted on this hub in a manner to be able to pivot with respect to said hub about an axis cutting the axis of said hub at said centre, said member comprising a trunconical surface centered at said centre and adapted to roll on the trunconical surface of the casing and fitting against said trunconical surface of the casing along a straight line segment; a piece connected to one of the two trunconical surfaces and limited exteriorly by a surface, in the form of a spherical crown centred at said centre, disposed conjointly along the circle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
US743577A 1967-06-07 1968-06-07 Pump Expired - Lifetime US3514221A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR109459 1967-06-07

Publications (1)

Publication Number Publication Date
US3514221A true US3514221A (en) 1970-05-26

Family

ID=8632526

Family Applications (1)

Application Number Title Priority Date Filing Date
US743577A Expired - Lifetime US3514221A (en) 1967-06-07 1968-06-07 Pump

Country Status (9)

Country Link
US (1) US3514221A (nl)
BE (1) BE716154A (nl)
CH (1) CH524767A (nl)
DE (2) DE1703528C3 (nl)
ES (1) ES354776A1 (nl)
FR (1) FR1580807A (nl)
GB (1) GB1227009A (nl)
NL (1) NL159477B (nl)
SE (1) SE350307B (nl)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5115211A (ja) * 1974-07-29 1976-02-06 Sundstrand Corp Reitoatsushukuki
US3986435A (en) * 1974-03-15 1976-10-19 Agrotechnika, Narodny Podnik Gas compressors and motors
US4165205A (en) * 1977-05-19 1979-08-21 Otto Jr Carl L Multi-stage pump
WO1984000196A1 (en) * 1982-06-25 1984-01-19 Rix Industries Sealed, self-contained, liquid-cooled, gas compressor
US4516913A (en) * 1977-11-30 1985-05-14 Techniques Girodin Multistage drum compressor
US4922119A (en) * 1988-11-29 1990-05-01 Sundstrand Corporation Integrated starting system
US4928576A (en) * 1987-03-30 1990-05-29 Armstrong Richard J Compressed gas motor
US5397218A (en) * 1992-08-07 1995-03-14 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Support mechanism for a rotary shaft used in a swash plate type compressor
EP0685648A2 (de) * 1994-05-06 1995-12-06 HUGO JUNKERS WERKE GmbH Kolbenanordnung für eine Kolbenpumpe
CN104929995A (zh) * 2015-06-01 2015-09-23 吴家集 液压行走驱动系统
US20170370357A1 (en) * 2016-06-22 2017-12-28 Faurecia Automotive Seating, Llc Pneumatic pump
CN107781147A (zh) * 2017-11-28 2018-03-09 广东商旅宝健康科技有限公司 电动充气装置
US12018672B2 (en) 2020-04-02 2024-06-25 Idex Health And Science Llc Precision volumetric pump with a bellows hermetic seal

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008005A (en) * 1974-07-31 1977-02-15 Sankyo Electric Company, Limited Refrigerant compressor
GB2144181B (en) * 1983-07-27 1986-09-10 Dowty Fuel Syst Ltd Gas compressors
DE4326366A1 (de) * 1992-08-07 1994-02-24 Toyoda Automatic Loom Works Kompressor der Taumelscheibenbauart

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE245099C (nl) *
US773206A (en) * 1903-06-10 1904-10-25 Hall Gasolene Engine Company Gas-engine.
US1715735A (en) * 1926-10-13 1929-06-04 Jr Thomas A Banning Pumping and metering apparatus
US1819966A (en) * 1929-09-26 1931-08-18 Olson Charles Air compressor
US2027076A (en) * 1934-07-24 1936-01-07 Volliman Joseph Air compressing device
US2141057A (en) * 1937-09-13 1938-12-20 Virgil Scott Gas compressor
US2887059A (en) * 1954-08-17 1959-05-19 Richard T Cornelius Wabble pumps
US3131855A (en) * 1961-12-28 1964-05-05 Vilter Manufacturing Corp Art of conserving lubricant in gas compressors
US3323466A (en) * 1965-11-02 1967-06-06 Ford Reginald Clarence Nutating disc pumps

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE245099C (nl) *
US773206A (en) * 1903-06-10 1904-10-25 Hall Gasolene Engine Company Gas-engine.
US1715735A (en) * 1926-10-13 1929-06-04 Jr Thomas A Banning Pumping and metering apparatus
US1819966A (en) * 1929-09-26 1931-08-18 Olson Charles Air compressor
US2027076A (en) * 1934-07-24 1936-01-07 Volliman Joseph Air compressing device
US2141057A (en) * 1937-09-13 1938-12-20 Virgil Scott Gas compressor
US2887059A (en) * 1954-08-17 1959-05-19 Richard T Cornelius Wabble pumps
US3131855A (en) * 1961-12-28 1964-05-05 Vilter Manufacturing Corp Art of conserving lubricant in gas compressors
US3323466A (en) * 1965-11-02 1967-06-06 Ford Reginald Clarence Nutating disc pumps

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986435A (en) * 1974-03-15 1976-10-19 Agrotechnika, Narodny Podnik Gas compressors and motors
JPS5115211A (ja) * 1974-07-29 1976-02-06 Sundstrand Corp Reitoatsushukuki
US4165205A (en) * 1977-05-19 1979-08-21 Otto Jr Carl L Multi-stage pump
US4516913A (en) * 1977-11-30 1985-05-14 Techniques Girodin Multistage drum compressor
WO1984000196A1 (en) * 1982-06-25 1984-01-19 Rix Industries Sealed, self-contained, liquid-cooled, gas compressor
US4802826A (en) * 1982-06-25 1989-02-07 Rix Industries Sealed, self-contained, liquid-cooled, gas compressor
US4928576A (en) * 1987-03-30 1990-05-29 Armstrong Richard J Compressed gas motor
US4922119A (en) * 1988-11-29 1990-05-01 Sundstrand Corporation Integrated starting system
US5397218A (en) * 1992-08-07 1995-03-14 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Support mechanism for a rotary shaft used in a swash plate type compressor
EP0685648A2 (de) * 1994-05-06 1995-12-06 HUGO JUNKERS WERKE GmbH Kolbenanordnung für eine Kolbenpumpe
EP0685648A3 (de) * 1994-05-06 1997-11-26 Weber-Hydraulik GmbH Kolbenanordnung für eine Kolbenpumpe
CN104929995A (zh) * 2015-06-01 2015-09-23 吴家集 液压行走驱动系统
CN104929995B (zh) * 2015-06-01 2017-11-24 吴家集 液压行走驱动系统
US20170370357A1 (en) * 2016-06-22 2017-12-28 Faurecia Automotive Seating, Llc Pneumatic pump
US10648464B2 (en) * 2016-06-22 2020-05-12 Faurecia Automotive Seating, Llc Pneumatic pump
CN107781147A (zh) * 2017-11-28 2018-03-09 广东商旅宝健康科技有限公司 电动充气装置
US12018672B2 (en) 2020-04-02 2024-06-25 Idex Health And Science Llc Precision volumetric pump with a bellows hermetic seal

Also Published As

Publication number Publication date
DE1703528C3 (de) 1974-05-02
FR1580807A (nl) 1969-09-12
ES354776A1 (es) 1969-11-01
DE1703528A1 (de) 1971-11-18
DE1703528B2 (de) 1973-10-04
DE1997329U (de) 1968-11-28
NL159477B (nl) 1979-02-15
BE716154A (nl) 1968-11-04
GB1227009A (nl) 1971-03-31
CH524767A (fr) 1972-06-30
SE350307B (nl) 1972-10-23
NL6807922A (nl) 1968-12-09

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