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WO1999039102A1 - Pompe de type omega - Google Patents

Pompe de type omega Download PDF

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Publication number
WO1999039102A1
WO1999039102A1 PCT/GR1999/000010 GR9900010W WO9939102A1 WO 1999039102 A1 WO1999039102 A1 WO 1999039102A1 GR 9900010 W GR9900010 W GR 9900010W WO 9939102 A1 WO9939102 A1 WO 9939102A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
blades
casing
cylindrical
rotatably supported
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.)
Ceased
Application number
PCT/GR1999/000010
Other languages
English (en)
Inventor
Manousos Pattakos
John Pattakos
Emmanouel Pattakos
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1999039102A1 publication Critical patent/WO1999039102A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F04C2/04—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 of internal axis type
    • F04C2/045—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 of internal axis type having a C-shaped piston

Definitions

  • FIGs 1 to 6 it is shown the principle of operation of such a pump. With dense hatching is the piston and with rare hatching is the casing. The piston moves parallel to itself. The FIGs are per 60° of rotation of the main shaft of the pump. The arrows show the direction of the working means flow. The realization of a parallel to itself motion results in reduction of the inertia torque, in diminution of the friction and in improvement of the intake and discharge ports.
  • a system of three parallel crankshafts having the same throw, located in the inner hub with respect to the blades is used. These three crankshafts are rotatably supported to the casing while the piston is rotatably supported to their crankpins.
  • crankshafts are the power shaft of the pump while the other two are free to insure the parallel to itself motion of the piston. All three crankshafts are necessary. Unless they work together an uncertainty about the direction of the motion of the piston will be.
  • This arrangement realizes the parallel to itself motion of the piston without the need of additional mechanisms, like timing belts or toothed gears, while offers lower weight, smaller external dimensions and simplicity.
  • the connection of the two parts of the casing is possible either externally or using the free area within the working blades, with spacers and bolds passing through apertures of the hub of the piston, makes the construction more rigid and improves the sealing even with thinner, and consequently lighter, casing.
  • Multiblade pistons with blades of various height cooperating with a properly shaped casing, in order to achieve a multistage compressor are also shown.
  • FIGs 7 and 8 it is shown in section view the proposed pump.
  • 1 and 2 are marked the two parts constituting the case.
  • With 3 is marked the piston.
  • the main shaft of the pump is the 4, 5, 6 piece which is a crankshaft with its crank pin 4.
  • With 7 and 8 are marked the two main bearings of the main shaft.
  • With 10 is marked one of the two "free" cranks having the same throw with the main shaft, 11 and 21 are the two bearings that rotatably support it to the stator, and 9 is the bearing that rotatably supports it to the piston 3.
  • FIG 9 it is shown in solid fo ⁇ n the piston and in FIG 10 the two pieces or cups of the case with the lower one being cut by a 90° part in an effort to make its form more understandable.
  • the ports for the suction and the discharge of the fluid On the cups of the case they are also shown the ports for the suction and the discharge of the fluid.
  • the apertures where the securing screws of the cups pass through used also as spacers, holding the two cups constituting the case at the coirect distance.
  • FIG 11 shows the same as FIG 7, and in solid form the tliree cranks and the tliree screws/spacers.
  • the two small cranks in cooperation with the strong -3- one wliich is the main shaft, secure the piston move being parallel to itself.
  • FIG 12 they are shown the tliree cranks with 40, 47 and 51 being the centers of rotation. All tliree have the same throw, that is the circle 42 has the same radius with the circles 50 and 55.
  • the big diameter crankpin 43 in cooperation with the crankpin 53 lying on the upper part of the figure, are shown exactly at the angle where there is uncertainty about the motion of the piston. This uncertainty is eliminated by the presence of the third crankpin 46, and so the piston is forced to move parallel to itself.
  • the 44 corresponds to the shaft 6, the 43 corresponds to the eccentric pin 4, and the 45 co ⁇ esponds to the shaft 5 of FIG 7.
  • the 52 corresponds to the crankshaft 10 of the FIG 7. So without using gears and synchronizing belt for the crankshafts, as it is the case in the known spiral compressor, the parallel motion of the piston is realized. Of course it can also be used the method applied in the spiral compressor for the parallel motion of the piston, yet a set of a main crank and two "free" small cranks is more compact combined with lower cost and weight.
  • FIGs 13 and 14 it is shown a second way for the realization of the proposed idea.
  • the difference of the pump of the FIGs 13 and 14 from the pump described in the FIGs 7, 8, 9, 10, 11 and 12 is that the piston is now not extending farther its outer cylindrical blade and that the case is simpler, has smaller outer diameter, is lighter and stronger.
  • the pump of the FIGs 13 and 14 separates, with an immovable slate 33, the suction from the discharge, having less leakage in this area compared to the proposed pump of the FIGs 7 and 8, and there is no need now for four ports on the casing, two for the suction and two for the discharge, but just two along the entire height of the cylinder.
  • the only drawback is the small slate 32 , moved by the piston 3 which has a properly shaped surface/guide 37 and 35, and also guided in grooves like 31 cut on the two cups of the stator in order to secure the sealing between intake and discharge.
  • This small slate is of so small volume and weight that there is no problem with its motion.
  • FIG 15 shows in solid form the piston of the pump of the FIGs 13 and 14. A part of 90° is removed so that its form is shown better. In the same FIG 15 they are also shown in solid fo ⁇ n the separation slate as well as the small slate. The slate remains immovable as the pump works, secured or welded on the cups consisting the stator.
  • FIG 16 it is shown the two cylindrical cups constituting the case together with the separation slate, it is also shown the small slate into its corresponding groove/guide on the upper cup and it is also shown the other groove/guide for the small slate on the lower cup. From the lower cup a part of 90° is removed so that its form is more understandable.
  • FIGs 15 and 16 show the holes for the bearings of the cranks, and also the holes where the -4- screws/spacers pass through.
  • FIG 17 it is shown a piston of the proposed pump with the characteristic, with respect to the piston of FIG 9, that the outmost ends of its cylindrical blades are bridged for increased strength.
  • This piston could cooperate with the stator of FIG 10, without any modification.
  • FIGs 18 and 19 show the piston and the stator in the case that the proposed pump has cylindrical blades of different height. Before leaving the pump the fluid performs two complete rotations. The suction is shown as a port in the outer surface of the lower cup and the exit is in the inner surface of the stator and is visible on the upper cup of FIG 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un piston (3) présentant des aubes cylindriques qui est maintenu constamment parallèle à soi-même pendant que son centre tourne et trace un cercle grâce à deux manivelles libres (10) supplémentaires dont l'amplitude est égale à celle d'un vilebrequin principal menant (4, 5, 6). Les aubes cylindriques sur le boîtier (1) coopèrent avec les aubes du piston afin de former la pompe. Un piston ne dépassant pas son aube extérieure améliore l'étanchéité, les orifices, réduit les dimensions, le frottement et le poids. Les ouvertures pratiquées à travers le moyeu intérieur du piston permettent de relier les parties de boîtier aux moyens (18) traversant celles-ci, assurant ainsi à l'ensemble une rigidité et une précision, de même qu'une étanchéité plus efficace entre les chambres.
PCT/GR1999/000010 1998-01-30 1999-01-28 Pompe de type omega Ceased WO1999039102A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR98100045 1998-01-30
GR980100045 1998-01-30

Publications (1)

Publication Number Publication Date
WO1999039102A1 true WO1999039102A1 (fr) 1999-08-05

Family

ID=10943315

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GR1999/000010 Ceased WO1999039102A1 (fr) 1998-01-30 1999-01-28 Pompe de type omega

Country Status (2)

Country Link
GR (1) GR980100045A (fr)
WO (1) WO1999039102A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1674731A4 (fr) * 2004-07-09 2012-04-18 Daikin Ind Ltd Machine à fluide rotative
EP1662145A4 (fr) * 2004-05-11 2012-06-06 Daikin Ind Ltd Machine rotative à fluide

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191108322A (en) * 1911-04-03 1912-04-03 George Frederick Nelson Improvements in Rotary Pumps or Motor.
DE590394C (de) * 1931-01-30 1933-12-30 Const Mecaniques L Aster Atel Pumpe mit zylindrischem Gehaeuse
FR928465A (fr) * 1946-05-28 1947-11-28 Machine rotative fonctionnant comme pompe, compresseur, etc.
US3125031A (en) * 1964-03-17 Multi-chamber rotary pump
DE3016837A1 (de) 1980-05-02 1981-11-05 Vdo Adolf Schindling Ag, 6000 Frankfurt Ringkolbenmaschine
JPS578385A (en) 1980-06-16 1982-01-16 Tokuji Kariya Ring swinging-type liquid ejection pump
US4531899A (en) 1982-08-26 1985-07-30 Pierburg Gmbh & Co Kg Positive displacement rotary gas compressor pump
US4606711A (en) 1983-01-10 1986-08-19 Nippon Soken, Inc. Fluid pump with eccentrically driven C-shaped pumping member
DE3911903A1 (de) 1989-04-12 1990-10-18 Bosch Gmbh Robert Verdraengerpumpe zum foerdern eines mediums
DE4338865A1 (de) 1992-11-13 1994-05-19 Toyoda Automatic Loom Works Spiralverdichter mit Gegengewicht
DE19520922A1 (de) 1995-06-08 1996-12-12 Vdo Schindling Drehkolbenpumpe
DE19520923A1 (de) 1995-06-08 1996-12-12 Vdo Schindling Drehkolbenpumpe

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125031A (en) * 1964-03-17 Multi-chamber rotary pump
GB191108322A (en) * 1911-04-03 1912-04-03 George Frederick Nelson Improvements in Rotary Pumps or Motor.
DE590394C (de) * 1931-01-30 1933-12-30 Const Mecaniques L Aster Atel Pumpe mit zylindrischem Gehaeuse
FR928465A (fr) * 1946-05-28 1947-11-28 Machine rotative fonctionnant comme pompe, compresseur, etc.
DE3016837A1 (de) 1980-05-02 1981-11-05 Vdo Adolf Schindling Ag, 6000 Frankfurt Ringkolbenmaschine
JPS578385A (en) 1980-06-16 1982-01-16 Tokuji Kariya Ring swinging-type liquid ejection pump
US4531899A (en) 1982-08-26 1985-07-30 Pierburg Gmbh & Co Kg Positive displacement rotary gas compressor pump
US4606711A (en) 1983-01-10 1986-08-19 Nippon Soken, Inc. Fluid pump with eccentrically driven C-shaped pumping member
DE3911903A1 (de) 1989-04-12 1990-10-18 Bosch Gmbh Robert Verdraengerpumpe zum foerdern eines mediums
DE4338865A1 (de) 1992-11-13 1994-05-19 Toyoda Automatic Loom Works Spiralverdichter mit Gegengewicht
DE19520922A1 (de) 1995-06-08 1996-12-12 Vdo Schindling Drehkolbenpumpe
DE19520923A1 (de) 1995-06-08 1996-12-12 Vdo Schindling Drehkolbenpumpe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1662145A4 (fr) * 2004-05-11 2012-06-06 Daikin Ind Ltd Machine rotative à fluide
EP1674731A4 (fr) * 2004-07-09 2012-04-18 Daikin Ind Ltd Machine à fluide rotative

Also Published As

Publication number Publication date
GR980100045A (el) 1999-09-30

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