WO2020141100A1 - Machine à pistons rotatifs - Google Patents

Machine à pistons rotatifs Download PDF

Info

Publication number
WO2020141100A1
WO2020141100A1 PCT/EP2019/086535 EP2019086535W WO2020141100A1 WO 2020141100 A1 WO2020141100 A1 WO 2020141100A1 EP 2019086535 W EP2019086535 W EP 2019086535W WO 2020141100 A1 WO2020141100 A1 WO 2020141100A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotary piston
rotation
axis
machine according
rotary
Prior art date
Application number
PCT/EP2019/086535
Other languages
German (de)
English (en)
Inventor
Lasse Maximilian AHLGRIMM
Marc STUMP
Dimitrij KAVUN
Original Assignee
Gardner Denver Schopfheim Gmbh
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 Gardner Denver Schopfheim Gmbh filed Critical Gardner Denver Schopfheim Gmbh
Publication of WO2020141100A1 publication Critical patent/WO2020141100A1/fr

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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/123—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor, e.g. one tooth
    • 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
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/084—Toothed wheels
    • 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
    • F04C2250/00—Geometry
    • F04C2250/20—Geometry of the rotor

Definitions

  • the invention relates to a rotary engine, in particular a claw machine, which can be operated, for example, as a compressor, vacuum pump or blower. Furthermore, the invention is directed to a rotary piston for a rotary piston machine.
  • Rotary lobe machines with interacting rotary lobes are generally known from the prior art through obvious prior use.
  • the invention has for its object to provide an improved rotary machine. In particular, this should reduce over-compression and thermal influences during operation.
  • an improved rotary piston is to be provided, which leads to reduced overcompensation and reduced thermal influences in a rotary piston machine.
  • the essence of the invention lies in a rotatable or rotatably drivable rotary piston which is rotated along its axis of rotation, in particular in a circumferential direction about the axis of rotation, preferably uniformly, at least in regions.
  • individual cross sections of the rotary piston are at least partially offset from one another about the axis of rotation. It is expedient if the rotary piston is helical or helical at least in some areas is.
  • the end faces of the respective rotary lobes preferably run parallel to one another.
  • Overcompression can thus be reliably reduced, in particular in the case of the rotary lobe machine, since the volume in the working chamber of the rotary lobe machine is reduced in comparison with a surface of the pressure connection. This leads to a comparatively low temperature of the gas in the working chamber.
  • the gas discharged through the pressure connection consequently also has a comparatively low temperature.
  • Heating or thermal stress on the rotary piston machine or on individual parts thereof, such as bearings / n and / or shafts / n is reduced, which leads, for example, to an extremely high vacuum which can be generated by the rotary piston machine.
  • the performance of the rotary piston machine is particularly high.
  • the rotary lobe machine is also particularly quiet and efficient in operation. A suction area of the rotary lobe machine is particularly easy to fill.
  • the housing advantageously has a housing base part and a housing cover which is connected to the housing base part.
  • the hous se lid is preferably detachably connected to the housing base. It is advantageous if it is designed as a bearing plate.
  • the working chamber has a cross section which is formed by two intersecting circles which give an “8”.
  • Gas can be introduced into the working chamber or into the working partial chambers via the suction connection. It is advantageous if the suction connection into the working chamber or at least one of the suction connection opening Partial work chamber empties.
  • the at least one suction port is located in a suction area of the rotary lobe machine.
  • Gas can be removed from the working chamber or a working sub-chamber, in particular under excess pressure or under pressure. It is advantageous if the pressure connection is connected to the working chamber or at least one of the working partial chambers, in particular the first working partial chamber, via at least one pressure connection opening.
  • the at least one pressure connection opening is located in a pressure area of the rotary lobe machine.
  • Each working sub-chamber is preferably spatially delimited by a working chamber wall of the housing, which extends at least on the inside in a circular arc.
  • the working sub-rooms are adjacent to each other.
  • the rotary pistons occasionally run along the inside of the working chamber.
  • the rotary lobes work without contact. They are preferably designed differently and matched to one another. In operation, they preferably rotate in opposite directions to one another and then comb with one another at least temporarily. It is expedient if the first and / or second rotary piston with its claws, depending on the respective rotary position, controls or influences the suction connection and / or pressure connection, in particular at the end, at least temporarily, in particular closes or releases them.
  • Each rotary lobe is preferably in the assembled state with a shaft in a rotationally fixed connection.
  • the rotary pistons can be driven in rotation by at least one rotary drive. Conveniently, these are synchronized during operation, especially by means of a synchronization gear, which is for example a mechanical, hyd raulisches or electrical gear.
  • a synchronization gear which is for example a mechanical, hyd raulisches or electrical gear.
  • the axes of rotation of the rotary pistons preferably run parallel to one another. It is useful if they are laterally offset from one another.
  • the first end faces of the first rotary piston are offset from one another in regions around the first axis of rotation. It is expedient if the first side wall extends, at least in regions, straight and / or curved between first regions of the first end faces rotated relative to one another. It is expedient if the first claw recesses have a substantially constant size from the suction connection in the direction of the pressure connection. Alternatively, their size changes from the suction connection towards the pressure connection. They can get bigger or smaller.
  • the first side wall changes its distance along the first axis of rotation in the first claws, at least in some areas.
  • the first claws are at least partially twisted on their respective leading side about the first axis of rotation.
  • the first claws are advantageously twisted at least in regions on their respective trailing side about the first axis of rotation.
  • the first rotary piston has non-rotated regions formed on the first claws, which are preferably arranged at a distance from one another.
  • the first side wall extends along the first axis of rotation essentially parallel to the first axis of rotation.
  • the first claw sealing areas temporarily run along the housing during operation of the rotary lobe machine.
  • the second rotary piston is advantageously adapted to interact with the first rotary piston according to subclaim 9.
  • the first rotary piston is preferably rotated about the first axis of rotation in a first direction of rotation
  • the second rotary piston is preferably rotated about the second axis of rotation in a second direction of rotation counter to the first direction of rotation.
  • the configuration according to subclaims 12 to 14 leads to a particularly efficient or economical rotary piston machine.
  • a suction area of the rotary lobe machine is particularly easy to fill.
  • the suction connection opening and the drain connection opening are arranged laterally offset in a working chamber or offset perpendicular to a normal to an end wall or end wall of the housing. They are preferably also offset from one another in the housing in the direction of the standards.
  • Second end faces of the second rotary piston are preferably at least partially by a second angle of rotation between 0.5 ° and 15 °, preferably rotated between 1 ° and 8 °, preferably between 2 ° and 6 °, about the second axis of rotation.
  • a distance of the second side wall along the second axis of rotation to the second axis of rotation changes at least in some areas in the case of the second claws.
  • the second claws are rotated at least in regions along the second axis of rotation about the second axis of rotation.
  • the second claws are at least preferably rotated in regions along the second axis of rotation adjacent to the second claw recess which is spatially delimited by them.
  • the second rotary piston is rotated at least in regions along the second axis of rotation adjacent to the second claw recesses in lagging regions of the second claws about the second axis of rotation.
  • the second rotary piston is at least partially untwisted about the second axis of rotation along the second axis of rotation in laterally outer, second claw sealing areas arranged adjacent to second claw tips.
  • FIG. 2 shows the rotary lobe machine shown in FIG. 1 in the assembled state, the housing cover being removed,
  • FIG. 3 shows a top view of a control piston according to the invention of the rotary piston machine shown in FIG. 1 from a first side
  • FIG. 4 shows a plan view of a blank for forming the control piston shown in FIG. 3,
  • FIG. 7 shows a top view of a delivery piston according to the invention of the rotary piston machine shown in FIG. 1 from a first side
  • Fig. 8 is a plan view of the delivery piston shown in Fig. 7 from an opposite second side, and Fig. 9, 10 perspective views of the originallykol shown in Fig. 7.
  • the housing 1 which spatially delimits a working chamber 2.
  • An actuatable rotary piston arrangement 3 is arranged in the working chamber 2.
  • the Drehkolbenma machine also has a suction port 4, which opens into the working chamber 2 via a suction port 5.
  • the rotary piston machine has a drain connection 6 which is arranged at a distance from the suction connection 4 and which opens into the working chamber 2 via a drain connection opening 7 in the working space.
  • the housing 1 is in two parts. It comprises a housing main part 8 and a housing cover 9 which is screwed to the housing main part 8 in the assembled state of the housing 1. Together they limit the working chamber 2.
  • the main housing part 8 limits the working chamber 2 to the side on the outside with a circumferential working chamber wall 10 and at the end with an end wall 1 L. In the end wall 11, the suction connection opening 5 is formed. The suction connection 4 is arranged in the main housing part 8.
  • the housing cover 9 also delimits the working chamber 2 on the end side. In the assembled state, it extends at a distance from the end wall 11 or essentially parallel to it.
  • the working chamber 2 has a first working sub-chamber 12 and a second working sub-chamber 13, which are essentially identical. forms are.
  • the working part chambers 12, 13 are arranged side by side and adjoin each other.
  • a control piston 14 of the rotary piston 3 is arranged.
  • the control piston 14 is arranged on a first shaft (not shown) in a rotationally fixed manner, which is mounted in the housing main part 8 and housing cover 9 so as to be rotatable or rotatably drivable about a first axis of rotation 15 or longitudinal center axis.
  • the control piston 14 has a central opening which is penetrated by the first shaft in the assembled state.
  • the control piston 14 and the first shaft are connected to one another in one piece. They are then made, for example, from the vol len.
  • the control piston 14 is preferably manufactured by machining a control piston blank, which is shown in FIG. 4.
  • the end wall 11 extends perpendicular to the first axis of rotation 15.
  • control piston 14 or its contour is point-symmetrical in the respective cross sections or planes of the control piston 14 with respect to the first axis of rotation 15.
  • the control piston 14 has two mutually opposite first claws 17 or contour bodies, which project from a central first grand body 18 or region of the control piston 14 and lead in operation in a first direction of rotation 19.
  • the first claw recesses 21 are open radially outward with respect to the first axis of rotation 15. They are spatially limited by the first claws 17 against the first direction of rotation 19 and also partially radially outward.
  • the first claws 17 are so dimensionally niert or shaped that when operating in rotation in the first direction of rotation 19 intermittently on the inside along the housing large part 8 chen.
  • the control piston 14 is preferably in one piece.
  • the control piston 14 has two mutually opposite first end faces 30.
  • the first end faces 30 extend perpendicularly or substantially perpendicularly to the first axis of rotation 15.
  • a first end face 30 of the control piston 14 faces the end wall 11, while the other first end face 30 of the Control piston 14 faces the housing cover 9.
  • a first side wall 31 of the control piston 14 runs between the first end faces 30, said wall facing all the way and essentially facing an inside of the working chamber wall 10.
  • the first end faces 30 essentially have an identical first contour.
  • Each first claw 17 has a leading first claw tip 32 leading ahead.
  • Each first claw 17 also has a first claw sealing region 33 which adjoins the respective first claw tip 32 on the outside.
  • each first claw 17 is rotated about the first axis of rotation 15 along the same at an angle of rotation vi which, depending on the desired output, preferably holds the rotary piston machine between 2 ° and 6 °.
  • the first end faces 30 are offset from one another about the first axis of rotation 15.
  • the first end face 30 facing the main housing part 8 leads or leads in the first direction of rotation 19 in comparison with the first end face 30 facing the housing cover 9.
  • the first end faces 30 are directly one above the other. They are arranged offset from one another about the first axis of rotation 15.
  • the control piston 14 has an axial thickness in the direction of the first axis of rotation 15, which is between 20% and 60%, preferably between 30% and 50%, of the distance of the first claw tips 32 from one another.
  • the possible rotation and axial thickness of the control piston 14 are preferably related to the selected contour of the first claws 17, in particular to the range of the constant diameter of the first claws 17, which seals on the housing 1.
  • a delivery piston 22 of the rotary piston assembly 3 is arranged.
  • the delivery plunger 22 is arranged in a rotationally fixed manner on a second shaft (not shown) which is mounted in the housing base part 8 and housing cover 9 so as to be rotatable or rotatably drivable about a second axis of rotation 23 or the longitudinal center axis.
  • the delivery piston 22 has a central opening which is penetrated by the second shaft.
  • the delivery piston 22 and the second shaft are connected to one another in one piece. For example, they are made from solid material.
  • the delivery piston 22 is preferably manufactured by machining a delivery piston blank.
  • the waves preferably run parallel to one another. They are mounted on both sides in the housing 1 and are preferably in drive connection with one another via a mechanical synchronization gear. Alternatively, for example, an electrical synchronization gear with two coordinated, separate electrical drives is used. It is useful if the first shaft is connected to a drive in the drive.
  • the delivery piston 22 or its contour is point-symmetrical in the respective cross sections or planes of the delivery piston 22 with respect to the second axis of rotation 23.
  • the delivery piston 22 has two mutually opposite second claws 25 or contour bodies which project from a central second base body 26 or region of the delivery piston 22 and lag in operation in a second direction of rotation 27 of the delivery piston 22. Every second claw 25 limits with its second region 28 leading in the second direction of rotation 27 of the delivery piston 22 about the second axis of rotation 23 a second claw recess 29.
  • the second claw recesses 29 are open radially outward with respect to the second axis of rotation 23. They are spatially limited by the second claws 25 against the second direction of rotation 27 of the delivery piston 22 and also partially radially outward.
  • the second claws 25 are dimensioned or shaped in such a way that, when they are rotating in the second direction of rotation 23, they occasionally sweep closely along the inside of the housing base part 8.
  • the delivery piston 22 is preferably in one piece.
  • the delivery piston 22 has two opposing second end faces 34.
  • the second end faces 34 extend perpendicularly or essentially perpendicular to the second axis of rotation 23.
  • a second end face 34 faces the end wall 11, while the other second end face 34 faces the housing. Cover 9 is facing.
  • Between the second end faces 34 runs a second side wall 35 which is circumferential and essentially facing an inner side of the working chamber wall 10.
  • the second end faces 34 essentially have an identical second contour. Every second claw 25 has a trailing free second claw tip 36.
  • Each second claw 25 also has a second claw sealing area 37 which adjoins the respective second claw tip 36 on the outside.
  • the second claws 25 are rotated about the second axis of rotation 23 along the same by an angle of rotation V2 which, depending on the desired power change of the rotary piston machine, is preferably between 2 ° and 6 °.
  • V2 which, depending on the desired power change of the rotary piston machine, is preferably between 2 ° and 6 °.
  • the second end faces 34 are offset from one another about the second axis of rotation 23.
  • the second end face 34 facing the housing cover 9 is lagging in the second direction of rotation 27 in comparison with the second end face 34 facing the housing base part 8.
  • the second end faces 34 lie directly one above the other. They are arranged about the second axis of rotation 23 without staggering.
  • the delivery piston 22 has an axial thickness in the direction of the second axis of rotation 23, which is between 20% and 60%, preferably between 30% and 50%, of the distance between the second claw tips 36.
  • the possible rotation and axial thickness of the delivery piston 22 are preferably related to the selected contour of the second claws 25, in particular to the range of the constant diameter of the second claws 25, which seals on the housing 1.
  • the suction connection 4 opens eccentrically into the first working sub-chamber 12 and also into the second working sub-chamber 13.
  • the suction connection opening 5 is mainly located in the second working sub-chamber 13.
  • the pressure connection 6 is arranged in the housing cover 9.
  • the pressure connection 6 opens out eccentrically into the first working sub-chamber 12 via the drain connection opening 7.
  • the suction port 4 and pressure port 6 can also be exchanged.
  • the suction port 4 and the pressure port 6 are arranged in one on the opposite end walls 11 of the housing 1.
  • the operation of the rotary lobe machine is described below.
  • the first shaft is set in rotation with the control piston 14 about the first axis of rotation 15 in the first direction of rotation 19 by means of the drive.
  • the second shaft with the delivery piston 22 is set in rotation in opposite directions accordingly.
  • the shafts and thus also the control piston 14 and delivery piston 22 are driven in opposite directions.
  • the control piston 14 and the delivery piston 22 cooperate and are intermeshed at times with each other.
  • the suction connection opening 5 is only partially closed by the control piston 14 and the delivery piston 22. Conversely, it is partially open. Gas can thus flow into the first working sub-chamber 12 and the second working sub-chamber 13 via the suction connection 4.
  • a first claw 17 of the control piston 14 engages in a second claw recess 29 of the delivery piston 22.
  • the control piston 14 and the delivery piston 22, together with the housing 1 in the working chamber 2 delimit a suction or inlet space which is connected to the suction connection opening 5 on both sides connects and into the first and second working sub-chamber 12 or 13 extends.
  • the intake or inlet space increases during the intake cycle by rotating the control piston 14 and the För derkolbens 22. It is closed.
  • a relaxation / ventilation space of the rotary piston machine extends in the first working sub-chamber 12 and the second working sub-chamber 13. It is spatially delimited by the suction or inlet space and the working space.
  • the expansion / ventilation space is limited by the control piston ben 14 and the delivery piston 22 and the housing 1.
  • the expansion / ventilation room is dependent on an approached operating point under overpressure or underpressure in relation to the atmospheric pressure.
  • the suction cycle is followed by an almost isochoric transport cycle for (isochorically) transporting the gas that is sucked in and is closed in the suction space.
  • the suction space or the gas enclosed there was divided by rotating the control piston 14 and the delivery piston 22 in the respective direction of rotation 19 and 27 around an angular region into / into two separate, separate transport spaces, which face away from one another and through the housing 1 and the control piston 14 and the delivery piston 22 are spatially limited.
  • Each first and second transport space is arranged and closed in the respective working subchamber 12, 13.
  • the transport spaces or the gas enclosed there are / will be moved isochorically.
  • the control piston 14 and the randomlykol ben 22 are disengaged. In particular, the claws 17, 25 and the claw recesses 21, 29 of the control piston 14 and theRONkol bens 22 out of engagement.
  • the second transport space essentially corresponds to the work space.
  • the pressure connection opening 7 is then largely open.
  • the control piston 14 opens the pressure connection opening 7.
  • the relaxation / ventilation space has shrunk.
  • the suction port 5 is still partially open. Gas can thus enter the working chamber 2 for a new cycle.
  • the rotary piston machine with the control piston 14 and delivery piston 22 enables two suction and pressure cycles per revolution.
  • a common workspace phase follows the isochoric transport cycle.
  • the two transport spaces are brought together by rotation of the control piston 14 and delivery piston 22 in the respective direction of rotation 19 and 27 about an angular region to form a common work space which is closed.
  • the common working space is separated via the control piston 14 and delivery piston 22 from the suction port 5, which is partially open. It is arranged at a distance from the suction connection opening 5. It extends over the first working subchamber 12 and the second working subchamber 13.
  • a second claw 25 of the delivery piston 22 engages in a first claw recess 21 of the control piston 14.
  • the pressure connection opening 7 is almost completely closed by the control piston 14.
  • the feed piston 22 blocks a flow connection between the pressure connection opening 7 and the common working space.
  • the common working space phase is followed by a rotation of the control piston 14 and the delivery piston 22 in the respective direction of rotation 19 and 27 around an angular region, a dead space inclusion and dead space feedback phase.
  • a dead space is between the control piston 14 and the delivery piston 22 in a central region of the Ge housing 1 in the working chamber 2 between adjacent claws 17 and
  • the dead space is closed and then exists between the mutually adjacent and open claw recesses 21, 29. It lies between the waves.
  • the dead space inclusion and dead space feedback phase the dead space is enclosed and returned to the suction area.
  • the pressure connection opening 7 is completely closed by the control piston ben 14.
  • the suction port 5 is still partially open.
  • the control piston 14 gradually releases the pressure connection opening 7. He opens it. Gas can thus leave the working chamber 2 via the pressure connection 6.
  • the suction port 5 is still partially open. The control piston 14 and the delivery piston 22 are disengaged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

L'invention concerne une machine à pistons rotatifs, comprenant un boîtier (1), un raccord d'aspiration (4) servant à guider du gaz dans une chambre de travail (2), un raccord de pression (6) se raccordant à la chambre de travail (2), servant à guider le gaz hors de la chambre de travail (2) et un ensemble de pistons rotatifs (3) servant à transporter le gaz depuis le raccord d'aspiration (4) vers le raccord de pression (6). L'ensemble de pistons rotatifs (3) comprend un premier piston rotatif (14) pouvant tourner disposé dans une première chambre partielle de travail (12), lequel comporte au moins deux premières mâchoires (17) et qui est tourné au moins par endroits le long du premier axe de rotation (15) autour du premier axe de rotation (15). L'ensemble de pistons rotatifs (3) a par ailleurs un deuxième piston rotatif (22) pouvant tourner, coopérant avec le premier piston rotatif (14), disposé dans une deuxième chambre partielle de travail (13).
PCT/EP2019/086535 2019-01-03 2019-12-20 Machine à pistons rotatifs WO2020141100A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019200028.2A DE102019200028A1 (de) 2019-01-03 2019-01-03 Drehkolbenmaschine
DE102019200028.2 2019-01-03

Publications (1)

Publication Number Publication Date
WO2020141100A1 true WO2020141100A1 (fr) 2020-07-09

Family

ID=69156388

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/086535 WO2020141100A1 (fr) 2019-01-03 2019-12-20 Machine à pistons rotatifs

Country Status (2)

Country Link
DE (1) DE102019200028A1 (fr)
WO (1) WO2020141100A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2062007A1 (de) * 1970-12-16 1972-07-06 Krüger, Winfried; Krüger, Peter; 4300 Essen Drehkolbengerät
DE19709202A1 (de) * 1997-03-06 1998-09-17 Busch Gmbh K Drehkolbenmaschine mit axial verdrehten Drehkolben
US20070050055A1 (en) * 2005-08-31 2007-03-01 Liung Feng Industrial Co., Ltd. Methods for designing lobe-type rotors
US20110236232A1 (en) * 2009-04-20 2011-09-29 Yi-Lin Chu Air compression device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243651A (en) * 1990-05-05 1991-11-06 Drum Eng Co Ltd Rotary, positive displacement machine
EP0578853B1 (fr) * 1992-07-15 1996-09-25 Mario Antonio Morselli Machine rotative avec profiles conjugués en contact continu
DE29919665U1 (de) * 1999-11-09 2000-01-20 K Busch Gmbh Druck & Vakuum Dr Drehkolbenpumpe mit wenigstens zwei parallelen Wellen
DE202009010390U1 (de) * 2009-07-31 2009-10-08 Busch Produktions Gmbh Vorrichtung zum lastunabhängigen Beaufschlagen eines Diesel-Rußpartikelfilters mit Druckluft

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2062007A1 (de) * 1970-12-16 1972-07-06 Krüger, Winfried; Krüger, Peter; 4300 Essen Drehkolbengerät
DE19709202A1 (de) * 1997-03-06 1998-09-17 Busch Gmbh K Drehkolbenmaschine mit axial verdrehten Drehkolben
US20070050055A1 (en) * 2005-08-31 2007-03-01 Liung Feng Industrial Co., Ltd. Methods for designing lobe-type rotors
US20110236232A1 (en) * 2009-04-20 2011-09-29 Yi-Lin Chu Air compression device

Also Published As

Publication number Publication date
DE102019200028A1 (de) 2020-07-09

Similar Documents

Publication Publication Date Title
DE4333144C2 (de) Kältemittelkompressor mit hin- und herbeweglichen Kolben
DE102020200377A1 (de) Scrollkompressor
DE3800324A1 (de) Fluegelzellenverdichter
WO2010010094A2 (fr) Moteur à piston
DE2407293A1 (de) Drehschieberkompressor
EP2603667B1 (fr) Machine à pistons
DE102017104063B4 (de) Elektrische Gerotorpumpe mit Steuerspiegel
DE1503544C3 (de) Drehkolbenvakuumpumpe
DE1503507B2 (de) Flügelzellenverdichter
DE2143345C3 (de) Parallel- und innenachsige Kreiskolben-Brennkraftmaschine in Zwei-Fach-Anordnung
DE19509913A1 (de) Umlaufkolbenmaschine
DE69928172T2 (de) Vacuumpumpe
DE4326408A1 (de) Vielfach-Axialkolbenverdichter
DE69213810T2 (de) Fluidverdichter
DE2332411B2 (de) Rotationskolbenverdichter
WO2020141100A1 (fr) Machine à pistons rotatifs
EP1488107B1 (fr) Pompe a excentrique et procede permettant de faire fonctionner ladite pompe
DE3401064A1 (de) Stroemungsmittelpumpe
DE4016865C2 (de) Flügelzellenverdichter mit verstellbarer Leistung
EP3765746A1 (fr) Machine à piston rotatif
DE3801306A1 (de) Fluegelzellenverdichter
DE2626449A1 (de) Dreharbeitsmaschine mit verschiebbaren, insbesondere ausfahrbaren und einziehbaren arbeitselementen wie fluegeln oder kolben
DE3922436C2 (fr)
DE2654991C3 (de) Drehschieberkompressor
WO2007115544A1 (fr) Pompe cellulaire

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19835289

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19835289

Country of ref document: EP

Kind code of ref document: A1