US3169487A - High pressure vane pump - Google Patents

High pressure vane pump Download PDF

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Publication number
US3169487A
US3169487A US202717A US20271762A US3169487A US 3169487 A US3169487 A US 3169487A US 202717 A US202717 A US 202717A US 20271762 A US20271762 A US 20271762A US 3169487 A US3169487 A US 3169487A
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United States
Prior art keywords
cylinder
vanes
ports
rotor
high pressure
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Expired - Lifetime
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US202717A
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English (en)
Inventor
Namikawa Takashi
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YEHAN NUMATA
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YEHAN NUMATA
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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
    • F04C2/02—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C2/063—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them
    • F04C2/077—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them having toothed-gearing type drive

Definitions

  • FIG l2 FIG I3 INVENTOR AM NAMIKAWA W lira-U I Bmjnn's Atromqs United States Patent ice 3,169,487 I HIGH PRESSURE VANE PUMP m. TakashiNamikawa, Knre City,"Japan, assignor to Yehan Numata, Yokohama, Japan 7 Filed June 15, 1962, Ser. No. 202,717 Claimspriority, application Japan, Nov. 29, 1961,
  • a concentric rotor is intermittently rotated.
  • the cylinder and rotor are provided with overlapping vanes, and these define the end walls of'ch'arnbers which expand and contract due to the difference between the movements of the cylinder and rotor. During expansion, thesechambers register with the inlet ports of the valve plate, and during compression withthe outlet ports.
  • the pump thus has over reciprocating pumps the advantage that it may be directly drivenfrom a rotating shaft, yet its mechanism is simplerthan that of centrifugal pumps.
  • FIG. 1 is an end view of my new pump
  • FIG. 2 is an axial section taken through the entire pump, except for the valve plate, which is sectioned along the line IIII of FIG. 1;
  • FIG. 3 is a schematic cross-section through the pump cylinder and rotor
  • FIGS. 4, 6, 8, 10 and 12 schematically show various positions assumed by the vanes relative to the ports
  • FIGS. 5, 7, 9, l1 and 13 show the positions of the members of the Geneva movement when the vanes occupy the positions shown in FIGS. 4, 6, 8, 10 and 12, respectively;
  • FIG. 14 is a graph showing the angular positions of the cylinder and rotor as a function of time.
  • the pump comprises a stationary casing 1 closed at one end by the valve plate 2.
  • a cylinder 3 is carried by bearings 16 and 20, located in the casing 1 and valve plate 2 respectively.
  • the rotor 4 carried by the shaft 5.
  • the inner Wall of the cylinder is provided with inwardly projecting vanes 7, and the rotor carries peripherally radiating vanes 6. These vanes overlap to form with the cylinder walls a plurality of expansible chambers. The volume of these chambers is varied by rotating the cylinder 3 at a constant speed, while driving the rotor 4 intermittently at an angular speed twice that of the cylinder.
  • each exhaust port b is connected through the outlet 14 and passage d to a safety valve 8, which is connected through the passage e to the inlet 13 and thus to the suction ports 0.
  • valve member 3 When the delivery pressure exceeds a prescribed limit, the valve member 3 is forced open against the resistance of'the spring 9, and oil passes through the passage e and suction port c, and thence back into the cylinder 3.
  • the pressure required to open the valve 8 may be adjusted by turning the threaded. plug 33 so as to increase or relieve the compression of the spring 9.
  • the valve 10 controls the passage 1 between the oil reservoir 19 and the inlet 13. This valve, which is biased shut by the spring 11, automatically opens when the suction pressure falls too low, and the pressure differential required to actuate it may be regulated by turning the threaded plug 12.
  • the cylinder 3 is formed in two parts to permit insertion of the rotor 4, and these two parts are held together by bolts 30.
  • the shaft 5 rotates in the cylinder, leakage therefrom being prevented by the sealing rings 31 and 32.
  • One end of the shaft projects beyond the cylinder jinto bearing 28 in journal box 29.
  • Both rotor shaft 5 and cylinder 3 are driven from a drive shaft 25 carried in bearings 26 and 27.
  • the cylinder is driven through reduction gearing 21, 22, and the rotor shaft 5 through Geneva gearing 23, 24, so that it rotates intermittently, turning during only half the time that the cylinder turns, but at twice the speed. While Geneva gearing is shown to produce this relationship, it will be appreciated that any other means which produces the same efiect may be used.
  • the Geneva gear 24 is keyed to the rotor shaft 5 by the key 18.
  • FIGS. 4, 6, 8, l0 and 12 show successive positions of the vanes relative to the valve plate and the apertures therein.
  • FIGS. 5, 7, 9, l1 and 13 show the positions of the driving member 23 and driven member 24 corresponding to each of these vane positions.
  • each of the cylinder vanes 7 has been assigned one of the reference characters V1, V2, V3, V4 and each of the rotor vanes 6 one of the reference'characters V1, V2, V3, V4.
  • the angle 0, through which a representative vane (V1 and V1) from each group turns, is plotted as a function of time intervals 11, t2, etc., on FIG. 14.
  • V2 and V3,-V3 and V4, V4 and V1 draw in the oil' connected to outlet means and the remainder being connected to inlet means
  • said 'valve' plate ports being posimounted within said casing and carrying a plurality of vanes projecting radially inward from its circumferential wall, an independently rotatable rotor coaxially mounted I to turn within said cylinder and provided with a pluralityof' vanes which project radially outward between the vanes carried by the cylinder, a transverse wall closing one end of said cylinder and pierced by a ring of spaced ports, with two'of said ports disposed between each pair of cylinder-carried vanes, a valve plate forming one end of said casing and positioned adjacent said transverse wall, resilient means biassing said transverse cylinder wall against said valve plate, said valve plate being likewise provided with a ring of spaced ports, alternate ports being tioned to successively register, with said cylinder ports during each revolution of said cylinder, means for rotating one of
  • valve plate those of said valve plate ports con'n'ectedtdan outlet beingalso connected to one side of said pressure responsive safety valve and those connected to an inlet being also connected tothe other side of said safety valve, so that an excessive outlet pressure is relieved by passage of fluid from said outlet connected ports to said inlet connected ports through said safety valve, and means accessable from outside said casing for adjusting the loading of said pressure respon sive valve.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
US202717A 1961-11-29 1962-06-15 High pressure vane pump Expired - Lifetime US3169487A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4237961 1961-11-29

Publications (1)

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US3169487A true US3169487A (en) 1965-02-16

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US (1) US3169487A (fr)
CH (1) CH386253A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981638A (en) * 1974-03-25 1976-09-21 David Godfrey Williams Rotary piston machine
US4169697A (en) * 1976-09-01 1979-10-02 Doundoulakis George J Angular compression expansion cylinder with radial pistons
EP0279967A1 (fr) * 1986-01-06 1988-08-31 Richard S. Stadden Machine à piston rotatif appliquant une croix de Malte
US5366356A (en) * 1992-05-05 1994-11-22 Savgal Compressors Ltd. Rotary-vane machine
RU2224114C1 (ru) * 2003-03-12 2004-02-20 Лудилов Алексей Александрович Двигатель внутреннего сгорания с вращающимися поршнями
RU2225513C2 (ru) * 2001-07-16 2004-03-10 ФГУП "Сибирский научно-исследовательский институт авиации им. С.А. Чаплыгина" Роторно-лопастной двигатель внутреннего сгорания
US20070062482A1 (en) * 2003-11-21 2007-03-22 Anatoly Arov Orbital engine/pump with multiple toroidal cylinders
US20070297928A1 (en) * 2006-06-25 2007-12-27 Leonid Volftsun Rotary vane machiine
US20090038581A1 (en) * 2006-02-22 2009-02-12 Herbert Huettlin Oscillating Piston Engine
US11952899B1 (en) * 2022-12-05 2024-04-09 Herbert Dym Bidirectional rotary hydraulic motor and pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083892A3 (fr) * 1982-01-08 1984-08-08 Robert Marcel Pierart Machine rotative à pistons à vitesse de rotation non uniforme

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211292A (en) * 1938-11-07 1940-08-13 Gerald E Ryerson Split cycle internal combustion engine
GB758187A (en) * 1952-10-09 1956-10-03 Parkwood Engineering Company L Improvements in and relating to rotary internal combustion engines, pumps or compressors
US2833225A (en) * 1954-08-25 1958-05-06 Motor Products Corp Hydraulic pump structure
US2948221A (en) * 1956-05-29 1960-08-09 Kontak Mfg Co Ltd Pumps for liquids
US3023706A (en) * 1960-03-24 1962-03-06 Gen Motors Corp Gear pump and relief valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211292A (en) * 1938-11-07 1940-08-13 Gerald E Ryerson Split cycle internal combustion engine
GB758187A (en) * 1952-10-09 1956-10-03 Parkwood Engineering Company L Improvements in and relating to rotary internal combustion engines, pumps or compressors
US2833225A (en) * 1954-08-25 1958-05-06 Motor Products Corp Hydraulic pump structure
US2948221A (en) * 1956-05-29 1960-08-09 Kontak Mfg Co Ltd Pumps for liquids
US3023706A (en) * 1960-03-24 1962-03-06 Gen Motors Corp Gear pump and relief valve

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981638A (en) * 1974-03-25 1976-09-21 David Godfrey Williams Rotary piston machine
US4169697A (en) * 1976-09-01 1979-10-02 Doundoulakis George J Angular compression expansion cylinder with radial pistons
EP0279967A1 (fr) * 1986-01-06 1988-08-31 Richard S. Stadden Machine à piston rotatif appliquant une croix de Malte
US5366356A (en) * 1992-05-05 1994-11-22 Savgal Compressors Ltd. Rotary-vane machine
RU2225513C2 (ru) * 2001-07-16 2004-03-10 ФГУП "Сибирский научно-исследовательский институт авиации им. С.А. Чаплыгина" Роторно-лопастной двигатель внутреннего сгорания
RU2224114C1 (ru) * 2003-03-12 2004-02-20 Лудилов Алексей Александрович Двигатель внутреннего сгорания с вращающимися поршнями
US20070062482A1 (en) * 2003-11-21 2007-03-22 Anatoly Arov Orbital engine/pump with multiple toroidal cylinders
US7631632B2 (en) * 2003-11-21 2009-12-15 Anatoly Arov Orbital engine/pump with multiple toroidal cylinders
US20090038581A1 (en) * 2006-02-22 2009-02-12 Herbert Huettlin Oscillating Piston Engine
US7866284B2 (en) * 2006-02-22 2011-01-11 Herbert Huettlin Oscillating piston engine
US20070297928A1 (en) * 2006-06-25 2007-12-27 Leonid Volftsun Rotary vane machiine
US7828532B2 (en) * 2006-06-25 2010-11-09 Leonid Volftsun Rotary vane machine
US11952899B1 (en) * 2022-12-05 2024-04-09 Herbert Dym Bidirectional rotary hydraulic motor and pump
US12247489B2 (en) 2022-12-05 2025-03-11 Herbert Dym Bidirectional rotary hydraulic motor and pump
US12523153B2 (en) 2022-12-05 2026-01-13 Herbert Dym Bidirectional rotary hydraulic motor and pump

Also Published As

Publication number Publication date
CH386253A (fr) 1964-12-31

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