EP1527256A1 - Machine a piston rotatif avec enveloppe interne mobile - Google Patents

Machine a piston rotatif avec enveloppe interne mobile

Info

Publication number
EP1527256A1
EP1527256A1 EP03783956A EP03783956A EP1527256A1 EP 1527256 A1 EP1527256 A1 EP 1527256A1 EP 03783956 A EP03783956 A EP 03783956A EP 03783956 A EP03783956 A EP 03783956A EP 1527256 A1 EP1527256 A1 EP 1527256A1
Authority
EP
European Patent Office
Prior art keywords
inner housing
rotors
shaft
housing
rotary piston
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.)
Granted
Application number
EP03783956A
Other languages
German (de)
English (en)
Other versions
EP1527256B1 (fr
Inventor
Felix Arnold
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.)
Robert Bosch GmbH
Original Assignee
Cor Pumps and Compressors AG
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 Cor Pumps and Compressors AG filed Critical Cor Pumps and Compressors AG
Publication of EP1527256A1 publication Critical patent/EP1527256A1/fr
Application granted granted Critical
Publication of EP1527256B1 publication Critical patent/EP1527256B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F01C3/06—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees
    • F01C3/08—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F01C3/085—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing the axes of cooperating members being on the same plane
    • 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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/106—Stators; Members defining the outer boundaries of the working chamber with a radial surface, e.g. cam rings
    • 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
    • F01C9/00—Oscillating-piston machines or engines
    • F01C9/005—Oscillating-piston machines or engines 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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/601—Adjustment

Definitions

  • the invention relates to a rotary piston machine according to the preamble of the main claim. It is known to manufacture rotary piston machines with power and shut-off parts arranged at an angle to one another, in which the rotors, at least one power and one shut-off part each, take up a spherical volume (DE 42 41 320 C 2) or correspond to the volume of a spherical disk (198 37 729 A 1).
  • machines of this type have the disadvantage that, in particular when overall dimensions become smaller, the gap losses between the areas in the interior of such machines that are subjected to different pressures, which can be used as pumps or motors, increase, and so do methods such as the manufacture of components Smaller tolerances lead to a disproportionate increase in the manufacturing effort for the manufacture of precisely intermeshing rotors and associated housings, which exponentially increases the effort required for centering the rotors and it is not possible to reduce these gap losses with economically justifiable effort.
  • the rotary piston machine according to the invention with the inner housing with the characterizing features of the main claim has the advantage that the inner housing is centered relative to the rotors due to the arrangement of the inner housing, which is freely displaceable in the axial and radial directions the gap dimensions are averaged between the components of the rotary piston machine (power part, shut-off part, inner housing) which are arranged so as to be movable and sealable, thereby reducing the gap losses.
  • the rotors which have a spherical outer shape and which are centered via a shaft on the one hand, for example the drive shaft of a motor flanged to the rotary piston machine (power unit), and the control head of the rotary piston machine on the other hand (shut-off part), by an inner housing with a spherical recess are included, which accommodates the rotor, which is arranged centered on the shaft of the control head, with a cylindrical bore which merges into the spherical recess.
  • the spherical recess serves to receive the other rotor arranged on the shaft and engaging at one axial angle in the one rotor seated on the shaft of the control head.
  • An opening in the spherical part of the inner housing serves to lead through the shaft and the shaft of the rotor (power section) attached to it.
  • the inner housing is prevented from dodging away from the control head, for example via a cone that surrounds the shaft of the rotor rotating with the shaft, and via an anti-rotation device that can be freely displaced in the axial and radial directions, for example by springs arranged on the outside of the inner housing, which in recesses on Intervene in the outer housing and prevent it from rotating.
  • Openings over part of the circumference on the inner housing which, depending on the operating mode, serve as an inlet or outlet for the conveying or drive fluid, create a pressure compensation between the inside and outside of the inner housing, so that the same pressure is present between the inner housing and the housing as within the Inner housing or so that the pressure between the housing and the inner housing is higher than the static pressure in the Gap between the outer circumferential surface of the rotors and the inner surface of the inner housing when the gap flow forms, so that an additional sealing effect is achieved by pressing the inner housing on all sides due to the resulting compressive forces.
  • An advantageous embodiment of the invention provides that the rotors and the inner housing engaging the rotors can be pressed against one another in the axial direction, for example by means of an adjusting ring and a spring ring, so that the gap flows between the individual chambers formed by the rotors and between that in the spherical recess lying rotor and the inner housing can be further reduced.
  • the shut-off part 2 is rotatable about the with a shaft 4 of the control head 5 receiving bore Longitudinal axis of the shaft 4 arranged.
  • the power section 3 has a central spherical recess on the side facing the shut-off section 2 for receiving the control head 5.
  • the shaft of the power part 3 is attached to the shaft of a motor 8 by means of a feather key 6 and a shaft extension 7.
  • the housing 10 is fastened to the motor 8 via a flange 9.
  • the two rotors which are fixed in their position via the shaft 4 of the control head 5 and via the shaft of the motor 8, are of an inner housing 1 which can be displaced in the axial and radial directions and which has a spherical recess has continuous cylindrical bore for receiving the rotors (shut-off part 2 and power part 3).
  • springs 11 are formed on the outer side of the inner housing 1 and engage in recesses 12 in the building 10.
  • a cone 13 is arranged above the shaft of the power section 3, which prevents the movement of the inner housing 1 away from the control head 5.
  • Shut-off part 2, power part 3 and inner housing 1 are pressed together in the axial direction via setting rings 14 and a spring ring 15. Due to the free displacement of the inner housing 1, relative to the rotors 2 and 3, manufacturing tolerances of the entire assembly, in particular the shut-off part 2 and the power part 3, are averaged and gap flows are thereby reduced.
  • Openings 16 in the inner housing 1 the working pressure of the rotary piston machine is transmitted into the space between the housing 10 and the inner housing 1. This creates an additional contact pressure of the inner housing 1 in the radial and axial direction on the shut-off part 2 and the power part 3.
  • a mechanical seal 17 is arranged between the flange 9 and the shaft of the motor 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Motors (AREA)
  • Reciprocating Pumps (AREA)
  • Sealing Devices (AREA)

Abstract

L'invention concerne une machine à piston rotatif comportant une enveloppe interne (1) et des rotors (2, 3) dont les axes forment un angle, cette conception permettant de compenser les tolérances de fabrication et de réduire les pertes d'interstices inhérentes à de telles machines.
EP03783956.0A 2002-08-02 2003-08-04 Machine a piston rotatif avec enveloppe interne mobile Expired - Lifetime EP1527256B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10235604 2002-08-02
DE10235604 2002-08-02
PCT/DE2003/002632 WO2004015245A1 (fr) 2002-08-02 2003-08-04 Machine a piston rotatif avec enveloppe interne mobile

Publications (2)

Publication Number Publication Date
EP1527256A1 true EP1527256A1 (fr) 2005-05-04
EP1527256B1 EP1527256B1 (fr) 2013-05-22

Family

ID=31501722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03783956.0A Expired - Lifetime EP1527256B1 (fr) 2002-08-02 2003-08-04 Machine a piston rotatif avec enveloppe interne mobile

Country Status (8)

Country Link
US (1) US7318712B2 (fr)
EP (1) EP1527256B1 (fr)
JP (1) JP4473122B2 (fr)
AU (1) AU2003260256A1 (fr)
BR (1) BR0313309B1 (fr)
CA (1) CA2501161C (fr)
DE (2) DE10335939B4 (fr)
WO (1) WO2004015245A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0414231B1 (pt) 2003-09-11 2013-03-19 mÁquina de Êmbolo rotativo.
DE502004002805D1 (de) 2003-09-11 2007-03-15 Cor Pumps & Compressors Ag Drehkolbenmaschine
US8834140B2 (en) * 2004-05-25 2014-09-16 Cor Pumps + Compressors Ag Leakage loss flow control and associated media flow delivery assembly
DE102004026048A1 (de) * 2004-05-25 2005-12-29 Cor Pumps + Compressors Ag Spaltverluststromsteuerung
JP5085528B2 (ja) * 2005-03-16 2012-11-28 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 回転ピストン機械
BRPI0709777B1 (pt) * 2006-05-10 2019-06-25 Robert Bosch Gmbh Máquina de êmbolo rotativo
CN101970801B (zh) * 2007-08-31 2013-04-10 罗伯特·博世有限公司 用于将压缩空气能转化为机械能的方法及其压缩空气发动机
DE102008037841A1 (de) * 2007-08-31 2009-03-05 Cor Pumps + Compressors Ag Verfahren zur Umwandlung von Druckluftenergie in elektrische Energie und Durchführung des Verfahrens mit einem Druckluftmotor
US8114177B2 (en) * 2008-02-29 2012-02-14 Greatpoint Energy, Inc. Co-feed of biomass as source of makeup catalysts for catalytic coal gasification
DE102008038625A1 (de) * 2008-08-12 2010-02-18 Cor Pumps + Compressors Ag Stirnzahnradpumpe
US8539931B1 (en) 2009-06-29 2013-09-24 Yousry Kamel Hanna Rotary internal combustion diesel engine
DE102010003319A1 (de) * 2010-03-26 2011-09-29 Robert Bosch Gmbh Förderaggregat
JP6084435B2 (ja) * 2012-08-08 2017-02-22 Ntn株式会社 内接歯車ポンプ

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662482A (en) * 1951-09-12 1953-12-15 Paulsmeier Fritz Ball piston pump
US2831436A (en) * 1952-08-19 1958-04-22 Garvenswerke Maschinen Pumpen & Waagenfabrik W Garvens Pump
US3101700A (en) * 1960-06-14 1963-08-27 Meredith E Bowdish Rotary compressor or engine
US3816038A (en) * 1971-01-29 1974-06-11 Commercial Metals Co Spherical displacement device and seal means therefor
US3856440A (en) * 1974-03-19 1974-12-24 E Wildhaber Rotor pair for positive fluid displacement
GB1472291A (en) * 1974-12-24 1977-05-04 Blything W Rotary positive displacement unit
US5513969A (en) * 1991-12-09 1996-05-07 Arnold; Felix Rotary piston machine having engaging cycloidal gears
CA2215219C (fr) * 1996-11-19 2000-07-04 Yukio Kajino Moteur rotatif de type a disques
DE19837729A1 (de) 1997-08-21 1999-05-20 Felix Arnold Drehkolbenmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004015245A1 *

Also Published As

Publication number Publication date
EP1527256B1 (fr) 2013-05-22
AU2003260256A1 (en) 2004-02-25
US7318712B2 (en) 2008-01-15
DE10335939A1 (de) 2004-04-08
CA2501161A1 (fr) 2004-02-19
WO2004015245A1 (fr) 2004-02-19
BR0313309B1 (pt) 2012-08-21
US20050175493A1 (en) 2005-08-11
DE10393551D2 (de) 2005-06-30
BR0313309A (pt) 2005-07-05
DE10335939B4 (de) 2013-07-04
CA2501161C (fr) 2010-11-23
JP2005534859A (ja) 2005-11-17
JP4473122B2 (ja) 2010-06-02

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