EP1849958A1 - Drehkolbenmaschine - Google Patents

Drehkolbenmaschine Download PDF

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Publication number
EP1849958A1
EP1849958A1 EP06008645A EP06008645A EP1849958A1 EP 1849958 A1 EP1849958 A1 EP 1849958A1 EP 06008645 A EP06008645 A EP 06008645A EP 06008645 A EP06008645 A EP 06008645A EP 1849958 A1 EP1849958 A1 EP 1849958A1
Authority
EP
European Patent Office
Prior art keywords
machine
rotary
chambers
rotary bodies
rotary body
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.)
Withdrawn
Application number
EP06008645A
Other languages
English (en)
French (fr)
Inventor
Valeriano Antonio Lollato
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
Priority to EP06008645A priority Critical patent/EP1849958A1/de
Priority to PCT/EP2007/003681 priority patent/WO2007122007A1/en
Publication of EP1849958A1 publication Critical patent/EP1849958A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C3/00—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members
    • F01C3/02—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged at an angle of 90 degrees
    • F01C3/025—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged at an angle of 90 degrees of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/48—Rotary-piston pumps with non-parallel axes of movement of co-operating members
    • F04C18/50—Rotary-piston pumps with non-parallel axes of movement of co-operating members the axes being arranged at an angle of 90 degrees
    • F04C18/52—Rotary-piston pumps with non-parallel axes of movement of co-operating members the axes being arranged at an angle of 90 degrees of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • 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
    • F04C3/00—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type
    • F04C3/02—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged at an angle of 90 degrees
    • F04C3/04—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged at an angle of 90 degrees of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing

Definitions

  • a further feature of the invention is to provide a machine with high efficiency and compression ratio.
  • Another object is to provide an internal combustion machine capable of fully evacuating the burnt gas from the combustion chamber before the suction of a fresh fuel charge.
  • said spiral shape is obtained according to a spiral of Archimede.
  • a gap is provided adapted to allow the relative rotation of the rotary bodies without contacting each other and to to limit fluid leakage between said chambers.
  • each rotary body penetrates the other adjacent rotary bodies that are opposite to each other, since its "positive” portion occupies instantly a part of the two "negative” portions of the two adjacent rotary bodies, i.e. the spiral-shaped recess, taking into account of the different directions of rotation and the mirror-like shape of two adjacent rotary bodies.
  • said central portion comprises a device for igniting said fresh fuel charge, in particular, a sparkling plug, arranged according to a position selected from the group comprised of:
  • said transfer duct comprises at least one first valve adapted to block said duct during the combustion and to open said duct during the compression for conveying the fresh compressed fuel charge from the periphery of each chamber to the central portion.
  • said inlet duct has a first end oriented out of the machine and at least one second end at said central portion, said at least one second end comprising a second valve adapted to be opened during the suction step and closed during the combustion step.
  • said inlet duct has a third end that connects said chamber in a zone of maximum volume, preferably said end comprising a third valve.
  • said transfer duct and said inlet duct coincide, said inlet duct comprising a fourth valve arranged upstream from said second and third valve adapted to block said inlet duct during the transfer through said transfer duct between said second and third end.
  • said compressor for a fluid or said pump for liquid has a central spherical recess defined by spherical surface portions belonging to each rotary body, said central recess communicating with said chambers for predetermined rotation angle of said rotary bodies.
  • said fluid inlet in said chambers comprises at least one suction duct in at least one rotary body adapted to connect said central spherical recess with a fluid ready for suction, said duct having a first end connected to said spherical surface portion by a first opening.
  • said at least one suction duct comprises at least one second opening communicating with said central recess.
  • the front face 5A of rotary body 1A is facing the front face 5C of rotary body 1C, 1A and 1C creating a couple of rotary bodies counter rotating about coincident axes 11A and 11C.
  • front face 5B of rotary body 1B faces the front face 5D of rotary body 1D, 1B and 1D, creating a couple of rotary bodies counter rotating about coincident axes 11B and 11D.
  • Rotary bodies 1A and 1C have mirror-like shape with respect to rotary bodies 1B and 1D. In other words, each rotary body rotates in a direction contrary to the direction of rotation of the other two rotary bodies adjacent and perpendicular.
  • the above described four rotary bodies When assembled together the above described four rotary bodies form an assembly 12 with substantially spherical external shape and having four perpendicular shafts continuously rotating about axes 11A, 11B, 11C and 11D, each shaft being integral to the respective rotary body. Between the four rotary bodies no sliding occurs since minimum a gap is present, having thickness preferably less than 1mm.
  • the net drawn on the elements of figure 11 is not a real feature of the rotary bodies but is used only for highlighting its the curved shape.
  • this rotary body 1 when cross-sectioned with a plane passing through the rotation axis 11, provides sections 7 with spiral-shaped edge, also in this case Archimedean spirals, obtained as intersection of surfaces 3 and 6.
  • Rotary body 1 comprises a spherical portion 2 with axis coincident to axis 11, which covers substantially a half of the rotary body same, having an end on plane face 5 and an end comprising two curved end portions 14 and 14' symmetrical with respect to a midplane passing through axis 11 and perpendicular to plane face 5.
  • Each of such curved end portions 14 is defined by a curved surface consisting of points rotationally equidistant both from the plane of front face 5 and from the plane passing through axis 11 and perpendicular to the above described plane of symmetry.
  • This shape of the curved end portions 14 is adapted to allow the relative rotation of the four rotary bodies.
  • the spherical shape of portion 2 is adapted to allow the rotation of the rotary bodies in a spherical containing structure 20 shown in figures 27, 28 and 29.
  • figure 18 shows a succession of configurations, corresponding to following angular positions of the four rotary bodies, which shows the evolution of the geometry of the peripheral zone of a group of four chambers, responsive to the angular position.
  • the peripheral zone of two chambers 300 and 301 is shown of a group of four chambers.
  • Progressively wit the rotation the creation of an opening at the boundary of a chamber 302 and its variation during the rotation of the rotary bodies is shown.
  • the creation is shown of an opening 304 and then an opening 307.
  • the course of the creation of the apertures of the chambers responsive to the angle of rotation depends on the shape of the rotary bodies, which in the case described is that of figure 7.
  • a machine obtained according to the invention comprises the four rotary bodies having a geometry described in the previous figures, that can be formed in order to work as volumetric operating machine capable of transforming mechanical energy into pressure, such as a volumetric compressor or a pump, or as internal combustion machine capable of transforming thermal energy, developed in a combustion step in a central zone, into mechanical energy supplied to a rotating shaft.
  • volumetric operating machine capable of transforming mechanical energy into pressure
  • internal combustion machine capable of transforming thermal energy, developed in a combustion step in a central zone, into mechanical energy supplied to a rotating shaft.
  • the above described group of four equal chambers that is formed between the four rotary bodies 1 comprises chambers that arise from a central portion 8, which, as shown in figures from 6 to 10, belongs to rotary body 1 and can be conformed in many ways for not allowing a free rotation of adjacent rotary bodies 1.
  • the shape of this central portion 8, described in figures 9 and 10 comprises a first rectilinear edge 15 given by the intersection between a plane passing through the front face 5 and two curved concave surfaces 9 and 9' that join on a second rectilinear edge 15' perpendicular to the first edge and arranged along the rotation axis 11.
  • the rotation of the rotary bodies reduces the volume of the chambers, according to the decreasing portion 103, pushing the burnt gas towards the boundary of the machine and expelling them through an expulsion opening depending on the geometry of the rotary bodies when they are in a predetermined angular position, which in the case treated ends at 630°.
  • This operation is repeated cyclically.
  • the particular geometry produces the operation is repeated cyclically.
  • the particular geometry produce the birth of a second group of four chambers, always in central zone and with evolution the same as that already described, after a rotation of 180°, then during the expansion step of the first group of four is carried out the ignition of the mixture seconda group of four chambers.
  • said internal combustion machine comprises a step of suction and compression of the comburent, previous to the expansion step owing to the combustion.
  • this step of suction and compression can be done by a group of four chambers that at the same time aspirano a mixture of fuel and comburent from the outside for depression along a portion increasing the course of the volume, indicated as 110 in figure 25, followed by a portion deincreasing compression 111, adapted to bringing this mixture compressed zone central. before that the volume of each chamber containing the mixture is reduca to zero, in particular, after a rotation of the rotary bodies 540°, this mixture starts to trafilare through a duct in a second group of four chambers that starts to forming which are even at 540°.
  • this trafiling is conclude after a rotation of 90° starting from the beginning the trafiling at the fine of the portion deincreasing 111. at this point, then after a rotation of 630°, is carried out rotary bodyre a spark seconda group of four chambers, containing the mixture compressa, ignition the mixture and carrying out a portion of expansion 102 followed by a portion of compression 103 the same as those described in figure 23.
  • a machine this way, carries out a group of four combustioni each 360°, differently from the previous example that ne carries out a group of four each 180°.
  • Such an internal combustion engine is structurally more complex of the previous case since needs of valves arranged on the path of the mixture for allowing the correct operation.
  • a this machine carries out a couple of combustioni each 180°, at the same time to a couple of aspirations.
  • This exemplary embodiment is consiglied because allows to obtain a movement fluid and needs of only nonreturn valves.
  • the machine according to the invention is conformed as volumetric compressor capable of causing the suction of a gas from the outside and convogliarlo towards the centre of the machine compressinglo.
  • the volume of the chambers increases according to a portion increasing similar to the portion 102 of figure 23 creating a depression in the chambers that thus aspirano the gas from the outside, this course increasing the volume is followed by a deincreasing 103 that compresses the gas porting it towards the centre.
  • Such second exemplary embodiment can be conformed to obtain a pump of liquid, whose rotary body 1 is described in figure 20, operating in the same way of the compressor already described, with the difference that since the liquid are incomprimible the above described duct 19, shown in figure 21, must comprise a plurality of apertures 16' oriented to the inner wall of each rotary body 1, adapted to keep in communication this duct 19 with the chamber of variable volume during the variation of this volume constringing the liquid to outflow progressively outwards.
  • Figure 32 shows the evolution time of the variable volume chambers present in the compressor peripheral.
  • the volume of such chambers, indicated withs that must be from 400 to 406 changes according to a portion increasing followed by a ratto deincreasing, creating a depression and then suction along the portion increasing and the compression along the portion deincreasing.
  • the drawings refer to configurations following obtained to range of rotation of 30°.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP06008645A 2006-04-26 2006-04-26 Drehkolbenmaschine Withdrawn EP1849958A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06008645A EP1849958A1 (de) 2006-04-26 2006-04-26 Drehkolbenmaschine
PCT/EP2007/003681 WO2007122007A1 (en) 2006-04-26 2007-04-26 Rotary pistons machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06008645A EP1849958A1 (de) 2006-04-26 2006-04-26 Drehkolbenmaschine

Publications (1)

Publication Number Publication Date
EP1849958A1 true EP1849958A1 (de) 2007-10-31

Family

ID=37003358

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06008645A Withdrawn EP1849958A1 (de) 2006-04-26 2006-04-26 Drehkolbenmaschine

Country Status (2)

Country Link
EP (1) EP1849958A1 (de)
WO (1) WO2007122007A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2500045A (en) * 2012-03-08 2013-09-11 Rotomotor Ltd Spherical Multi-Rotor Mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD87695A (de) *
JPS50107311A (de) * 1974-01-30 1975-08-23
DE2639760A1 (de) * 1976-09-03 1978-03-09 Andreas Nehring Rotationskolbenmaschine
DE19738132A1 (de) * 1997-09-01 1999-09-16 Lutz Jaitner Mehrachsige Rotationskörper-Verdrängungsmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD87695A (de) *
JPS50107311A (de) * 1974-01-30 1975-08-23
DE2639760A1 (de) * 1976-09-03 1978-03-09 Andreas Nehring Rotationskolbenmaschine
DE19738132A1 (de) * 1997-09-01 1999-09-16 Lutz Jaitner Mehrachsige Rotationskörper-Verdrängungsmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2500045A (en) * 2012-03-08 2013-09-11 Rotomotor Ltd Spherical Multi-Rotor Mechanism
US9714573B2 (en) 2012-03-08 2017-07-25 Rotomotor Limited Rotor mechanism

Also Published As

Publication number Publication date
WO2007122007A1 (en) 2007-11-01

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