EP1664541B1 - Drehkolbenmaschine - Google Patents

Drehkolbenmaschine Download PDF

Info

Publication number
EP1664541B1
EP1664541B1 EP04786755A EP04786755A EP1664541B1 EP 1664541 B1 EP1664541 B1 EP 1664541B1 EP 04786755 A EP04786755 A EP 04786755A EP 04786755 A EP04786755 A EP 04786755A EP 1664541 B1 EP1664541 B1 EP 1664541B1
Authority
EP
European Patent Office
Prior art keywords
housing
rotary piston
piston machine
machine according
rotors
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.)
Expired - Lifetime
Application number
EP04786755A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1664541A1 (de
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
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to PL04786755T priority Critical patent/PL1664541T3/pl
Publication of EP1664541A1 publication Critical patent/EP1664541A1/de
Application granted granted Critical
Publication of EP1664541B1 publication Critical patent/EP1664541B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/082—Details specially related to intermeshing engagement type machines or engines
    • 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
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/10—Sealings for working fluids between radially and axially movable parts
    • 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
    • F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
    • 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
    • F04C3/06—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged otherwise than at an angle of 90 degrees
    • F04C3/08—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type 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
    • F04C3/085—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type 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

Definitions

  • the invention relates to a rotary piston engine according to the preamble of the main claim.
  • a rotary engine is known by the US-A 3,236,186 (Wildhaber, Ernest ) of February 22, 1966.
  • Fig. 4 a rotary piston machine known as a conveyor unit, with at an axial angle to each other arranged rotors (drive part and driven part) and with a machine housing.
  • the working spaces are formed, which are increased or reduced during the rotation of the parts for their work or to produce the conveying effect on a medium.
  • Another such rotary engine is known by the DE-PS 4241320 (Arnold, Felix ) as a pump, compressor or motor, in which run the combs of teeth of a rotating drive part to limit work spaces on a cycloid surface of a likewise toothed driven part and thereby driving it.
  • the rotary piston engine according to the invention with the characterizing features of claim 1 has the advantage that the invention in particular in the fuel delivery of internal combustion engines, for example as a feed pump in diesel injection systems or as pre-feed pump or as a pressure and supply pump of gasoline injection systems, can serve.
  • the combination as a unit, between the motor housing and the machine housing, offers the possibility to make such a delivery or pressure pump small, since the electric motor can attack the output side directly to the drive part of the rotors, without additional complex storage.
  • connection of the housing can be given in various ways, for example, as a screw connection between two "pots" on the one hand surround the pump and on the other hand the electric motor, or there may be a Verbörtelung between a cover part and a cup part, depending on how this for the practical use and, above all, a favorable production makes sense.
  • Decisive for the invention is that in the motor housing, which are arranged part related to the electric motor, such as the magnets and the bearing of the rotor and that the pump housing are housed in the machine housing, including the inflow and outflow device for the medium.
  • Such an "electric pump” according to the invention is not limited in its application as a fuel pump, but can be used depending on the size and performance of liquid or gaseous media, with much higher pressures can be generated than in the known fuel pump (company Robert Bosch GmbH or the like). ,
  • the bearing bush is connected to a bottom bearing for the driven part, on which the driven part is supported on its side facing away from the drive part.
  • bearing bush and bottom bearing on the same axis, perpendicular to the bearing surface stands, on which the output part is supported.
  • the rotors run in an inner housing in which open to the rotors towards the suction channel and the pressure channel are arranged.
  • This inner housing is rotatably and not floating within the rest of the machine housing and in particular against rotation of the bottom bearing.
  • the inner housing may be arranged in an additional housing bushing and secured there against turning.
  • This housing socket in turn, can be stored in the outer machine housing.
  • the rotors run in a recess (of the inner housing), which is open and cylindrical to the driven side, and closed to the drive side and formed spherically.
  • the drive part can be supported, while the driven part is held on the cylindrical side by the bearing bush and the bottom bearing in its working position.
  • the drive part has an inner spherical region on which the drive part with a correspondingly shaped end face, or the bearing bush of the driven part can be supported.
  • the driven part is axially loaded in the direction of the drive part.
  • the output member is loaded by a spring force in the direction of the drive part.
  • a spring force may be particularly advantageous in the starting phase of such a pump in order to achieve the required for the promotion of tightness between the working edges of the intermeshing teeth.
  • the pressure channel of the machine is connected to a space between the driven part and the housing (bottom bearing) on the side facing away from the drive part. This ensures that when the medium has reached a certain pressure in the pressure channel, the driven part is pressed against the drive member so that thereby a better tightness between the flanks can be achieved.
  • the rotor is mounted with its one shaft in a fixed bearing, which is supported by the inner housing and on which the drive member is axially supportable. It is thus a both as a radial bearing for the engine as a thrust bearing for the drive part, the latter particularly causes a reduction in the friction losses between the drive part and the inner housing.
  • the transitions between the mutually facing the axial support serving spherical bearing surfaces and the work space delimiting tooth surfaces are rounded at the rotors.
  • the radius of such rounding preferably has at least 1 mm. Basically, this radius depends on the size of the pump parts.
  • short-circuit channels or short-circuiting grooves are arranged in the bottom surface of the rotors, via which adjacent work spaces can be connected to one another during rotation and, in particular, before opening a suction or pressure channel, in order to accommodate the changing volumes of the work spaces To achieve pressure equalization.
  • the delivery chambers change between the parts, with the associated flanks of the teeth of one part to slide over the corresponding surfaces of the other part, so that the lying between the teeth spaces from which the actual working spaces arise, here act as harmful spaces. While an overpressure would be created in the one harmful room, a negative pressure would be created in the adjacent room.
  • the fuel delivery pump shown has a rotary lobe pump 1 and an electric motor 2 driving this, which are arranged in a motor housing 3 and a housing cover 4 screwed onto it.
  • the electric motor is greatly simplified represents with a rotor 5 and a magnet ring 6, and an axial closure part 7 of the motor housing 3, which is connected to the motor housing 3 and sealed to this.
  • a pivot bearing 8 of the rotor 5, and the pressure port. 9 arranged for the fuel discharge.
  • the fuel pump is designed as a submersible pump, in which via suction ports 10, which are only indicated here, the fuel passes into the pump to then leave the pump via the pressure port 9 again.
  • the electric motor 5, 6 flows around the fuel within the motor housing 3.
  • the second pivot bearing of the rotor 5 is formed as a fixed bearing 11, which is arranged in a corresponding bore on the end face of an inner housing 12 of the rotary lobe pump 1 and on which the drive member 17 can be supported axially.
  • This inner housing 12 is arranged outside in a housing bushing 13, which in turn is sealed to the motor housing 3, partially clamped in this and partially within the housing cover 4.
  • a recess 14 is provided in the inner housing 12, with a cylindrical portion 15 and a spherical portion sixteenth
  • the recess 14 is closed on the output side by a bottom bearing 22, which is arranged obliquely to the axis of the recess 14 in order to achieve the required conveying angle and which is sealed at 23 to the inner housing 12.
  • a bearing pin 24 is arranged perpendicular to the recess 14 facing the end face of the bottom bearing 22, on which via a blind bore 25 (FIG. FIG. 3 ) the driven part 18 is mounted.
  • the output member 18 is also loaded in the direction of the drive member 17 by a coil spring 26 and a ball 27, wherein the spring is arranged in a blind bore 28 of the journal 24 and the ball is supported on the end face of the blind bore 25.
  • the output part 18 is supported via a spherical surface 29 facing the drive part 17 on a corresponding spherical recess 30 on the drive part 17 (FIG. Fig. 3 ).
  • FIGS. 4, 5 and 6 is recognizable as the conveying process takes place.
  • the work spaces 21 ( FIG. 2 ) are supplied with fuel via conveyor kidneys 31 which are arranged in the walls of the inner housing 12, and disposed of.
  • the fuel is then directed to the underside of the driven part 18, whereby this is loaded in the direction of the drive part 17, which, however, only works when the pump has already generated pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Hydraulic Motors (AREA)
EP04786755A 2003-09-11 2004-09-10 Drehkolbenmaschine Expired - Lifetime EP1664541B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04786755T PL1664541T3 (pl) 2003-09-11 2004-09-10 Maszyna z tłokiem obrotowym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10342341 2003-09-11
PCT/DE2004/002034 WO2005024237A1 (de) 2003-09-11 2004-09-10 Drehkolbenmaschine

Publications (2)

Publication Number Publication Date
EP1664541A1 EP1664541A1 (de) 2006-06-07
EP1664541B1 true EP1664541B1 (de) 2012-03-14

Family

ID=34258649

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04786755A Expired - Lifetime EP1664541B1 (de) 2003-09-11 2004-09-10 Drehkolbenmaschine

Country Status (10)

Country Link
US (1) US7390181B2 (pl)
EP (1) EP1664541B1 (pl)
JP (1) JP5053637B2 (pl)
AT (1) ATE549516T1 (pl)
BR (1) BRPI0414231B1 (pl)
CA (1) CA2536279C (pl)
DE (1) DE102004044297A1 (pl)
ES (1) ES2381002T3 (pl)
PL (1) PL1664541T3 (pl)
WO (1) WO2005024237A1 (pl)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2006097092A1 (de) * 2005-03-16 2006-09-21 Cor Pumps + Compressors Ag Drehkolbenmaschine
EP2016287B1 (de) * 2006-05-10 2018-07-11 Robert Bosch GmbH Drehkolbenmaschine
DE102007033659A1 (de) * 2007-07-17 2009-01-22 Cor Pumps + Compressors Ag Stirnzahnradumwälzpumpe
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
DE102008003240B4 (de) 2008-01-04 2024-02-15 Robert Bosch Gmbh Förderaggregat
DE102008038625A1 (de) * 2008-08-12 2010-02-18 Cor Pumps + Compressors Ag Stirnzahnradpumpe
DE102009006521A1 (de) 2009-01-28 2010-07-29 Cor Pumps + Compressors Ag Drehkolbenmaschine
EP2966295B1 (en) * 2013-03-05 2020-04-22 Yugen Kaisha Nakanoseisakusho Rotary drive device
DE102014209140A1 (de) * 2013-05-23 2014-11-27 Robert Bosch Gmbh Förderaggregat
DE102014219219A1 (de) * 2014-09-24 2016-03-24 Robert Bosch Gmbh Förderaggregat

Family Cites Families (15)

* 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
US3236186A (en) 1963-04-29 1966-02-22 Wildhaber Ernest Positive-displacement unit
DE1551081A1 (de) 1967-06-06 1970-04-16 Walter Bietzig Drehkugelmaschine
CH571647A5 (pl) * 1973-11-09 1976-01-15 Inventa Ag
DE2913608C2 (de) * 1979-04-02 1982-10-14 Wolfhart Dipl.-Phys. 8037 Olching Willimczik Drehkolbenartige Rotationskolbenmaschine
US4981424A (en) * 1988-12-21 1991-01-01 The United States Of America As Represented By The Secretary Of The Navy High pressure single screw compressors
US5513969A (en) 1991-12-09 1996-05-07 Arnold; Felix Rotary piston machine having engaging cycloidal gears
CA2215219C (en) * 1996-11-19 2000-07-04 Yukio Kajino Disc-type rotary engine
DE10035900A1 (de) * 2000-07-21 2002-01-31 Bosch Gmbh Robert Innenzahnradpumpe
JP2002364572A (ja) * 2001-06-07 2002-12-18 Kawakami Seisakusho:Kk 流体圧送装置
DE10150653A1 (de) * 2001-10-13 2003-04-30 Bosch Gmbh Robert Innenzahnradpumpe
JP3964200B2 (ja) * 2001-12-26 2007-08-22 愛三工業株式会社 燃料ポンプ
EP1527256B1 (de) 2002-08-02 2013-05-22 Robert Bosch GmbH Drehkolbenmaschinen mit verschiebbarem innengehäuse

Also Published As

Publication number Publication date
US7390181B2 (en) 2008-06-24
EP1664541A1 (de) 2006-06-07
US20060263228A1 (en) 2006-11-23
PL1664541T3 (pl) 2012-08-31
JP2007505250A (ja) 2007-03-08
BRPI0414231B1 (pt) 2013-03-19
ES2381002T3 (es) 2012-05-22
JP5053637B2 (ja) 2012-10-17
CA2536279C (en) 2013-02-12
WO2005024237A1 (de) 2005-03-17
ATE549516T1 (de) 2012-03-15
BRPI0414231A (pt) 2006-10-31
DE102004044297A1 (de) 2005-05-04
CA2536279A1 (en) 2005-03-17

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