EP1859170B1 - Machine a piston rotatif - Google Patents

Machine a piston rotatif Download PDF

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Publication number
EP1859170B1
EP1859170B1 EP06722634.0A EP06722634A EP1859170B1 EP 1859170 B1 EP1859170 B1 EP 1859170B1 EP 06722634 A EP06722634 A EP 06722634A EP 1859170 B1 EP1859170 B1 EP 1859170B1
Authority
EP
European Patent Office
Prior art keywords
housing
machine housing
driving part
driven part
machine
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.)
Active
Application number
EP06722634.0A
Other languages
German (de)
English (en)
Other versions
EP1859170A1 (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
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1859170A1 publication Critical patent/EP1859170A1/fr
Application granted granted Critical
Publication of EP1859170B1 publication Critical patent/EP1859170B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C15/0073—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps

Definitions

  • the invention relates to a rotary piston engine according to the preamble of the main claim.
  • a rotary engine with frontal toothing of a drive part and a driven part and located between the teeth workrooms that enlarge and reduce during rotation, whereby the conveying effect of the medium is generated has already been proposed several times.
  • DE 103 35 939 A1 are to reduce gap losses between the rotors in the axial and radial directions freely displaced, such gap losses may be both manufacturing but also result of shocks such a rotary piston machine during operation and thereby given unwanted changing the position of the rotors in their arrangement.
  • the additional contact pressure proposed there is also of little help from the pressure of the fluid flow.
  • the output member is loaded in the direction of the drive part, thereby to achieve the desired for use as a feed pump of gasoline injection engine assembly between the motor housing and the machine housing.
  • the axial clearance can be reduced but a basic setting or a corresponding flexibility for adjusting the pump is not given.
  • the invention has for its object to improve a rotary piston engine of the generic type so that it is particularly inexpensive to produce, allows a basic setting and a clamping of the rotors is avoided even when shaken during operation.
  • the rotary piston engine according to the invention is defined by the main claim.
  • the invention has the advantages mentioned in the underlying task. Depending on the type of fixing the floor bearing combined with it, that drive part and output part within arranged on the machine housing and enclosed by the floor bearings, on the one hand a subsequent adjustment of the game can be made, up to a basic setting, and on the other hand, a subsequent undesired clamping of the running parts can be prevented, also because a unit between the bottom bearing and machine housing. So there remains a required axial clearance.
  • the drive part and / or driven part on the side facing away from the pump chamber on a journal has a ring-shaped central bearing bore for receiving the journal.
  • the fuel delivery pump shown has a rotary piston pump 1 and an electric motor 2 driving this, which are arranged in a motor housing 3 and a housing cover 4 attached thereto.
  • the electric motor is shown greatly simplified with a rotor 5 and a magnetic ring 6, and an axial closure part 7 of the motor housing 3, which is connected thereto and sealed to this.
  • a rotary bearing 8 of the rotor 5 is provided on this closure part 7.
  • the electric motor 5, 6 flows around its cooling by the fuel within the motor housing 3.
  • the second pivot bearing of the rotor 5 is provided at its shaft end 9 in a bearing bore 10 of a bottom bearing 11, which is arranged in a corresponding opening on the end face of a machine housing 12 of the rotary lobe pump 1 and on which a frontally toothed drive part 13 of the pump on the Can axially support motor facing sides.
  • This machine housing 12 is arranged in a pump housing 14, which is sealed to the motor housing 3 and partially disposed in this and partially within the housing cover 4.
  • the shaft end 9 protrudes into a bearing bore 15 of larger diameter, which runs coaxially to the bearing bore 10 and in which a dipping into them pin 16 of the drive member 13 is rotatably mounted.
  • a driving coupling 17 is arranged between the shaft end 9 of the electric motor 2 and the journal 16 of the drive member 13, as they are in an enlarged scale in the FIGS. 3 and 4 is shown. Since both the shaft end 9 is mounted in the bottom bearing 11, as well as the drive member 13 with its journal 16, this driving coupling 17 is to cause a certain clearance compensation, both in the longitudinal and in the transverse direction.
  • the bottom bearing 11 is in fact designed as a fixed bearing and rigidly arranged between the machine housing 12, the pump housing 14, and the magnetic ring 6.
  • two pump rotors namely except the drive member 13, a driven part 18.
  • the drive member 13 is driven by the shaft end 9 of the electric motor 2 and the driving clutch 17 and transmits its rotational movement by toothed entrainment on the Output part 18.
  • cycloid gears are provided which have corresponding facing each other working surfaces. As a result, 12 pumping work spaces 19 are formed between these work surfaces and the inner wall of the machine housing, as in FIG. 2 shown.
  • FIGS. 3 and 4 it can be seen, the driving clutch 17, a ring member 20, with a hexagonal recess 21, in which a corresponding hexagonal shaped end portion of the shaft end 9 of the electric motor 2 is inserted for a desired turning and on the front side four plug-in pin 23 are arranged, which in corresponding end face on Running pin 16 arranged openings are inserted.
  • FIGS. 1 and 2 An end opening of the machine housing 12 is closed on the output side by a bottom bearing 22 which is arranged coaxially with the output part 18.
  • a bearing bore 24 is arranged, in which via a journal 25 of the output member 18 is mounted.
  • the drive member 13 and the output member 18 are loaded in the direction against each other by the hydraulic delivery pressure in which between the pump chamber pressure side and the opposite sides of the drive parts 13, 18 via holes or channels connection.
  • the output member 18 is supported with a spherical elevation 26 on a corresponding spherical recess 27 of the drive member 13 from.
  • the pump housing 14 may, as in FIGS. 1 and 2 represented, in particular cases pot-shaped, with a corresponding obliquely to the drive axis, but at right angles to the axis of the driven part 18, extending bottom 28 on which the bottom bearing 22 of the driven part 18 rests and is supported.
  • an additional structural decoupling of the pump side is advantageously given by the drive side, which can be particularly important in service.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Claims (2)

  1. Machine à piston rotatif (1),
    - avec au moins deux rotors coopérants, constitués d'une partie d'entraînement (13) et d'une partie de sortie (18), qui, par une denture frontale, limitent des espaces de travail (19) et dont les axes de rotation respectifs forment l'un avec l'autre un angle déterminé,
    - avec un boîtier de machine (12) recevant la partie d'entraînement (13) et la partie de sortie (18),
    - avec un canal d'aspiration et un canal de pression, qui, lorsque les rotors tournent, peuvent être connectés de manière intermittente aux espaces de travail (19) et
    - avec un moteur électrique disposé dans boîtier de moteur (3) pour l'entraînement (2) de la partie d'entraînement (13),
    - le boîtier de machine (12) et le boîtier de moteur (3) étant connectés l'un à l'autre,
    - avec un support sur palier rotatif (11, 22) présentant un jeu, de la partie d'entraînement (13) et de la partie de sortie (18), par rapport au boîtier de machine (12) et/ou dans la direction de l'autre partie,
    - la partie d'entraînement (13) et/ou la partie de sortie (18) étant montées avec jeu dans la direction de l'autre partie,
    - la partie d'entraînement (13) et/ou la partie de sortie (18) étant disposées, pour le support sur palier rotatif, dans un palier de fond (11, 22) déterminant sa position angulaire axiale et permettant un jeu axial, connecté au boîtier de machine (12) pour former une unité structurelle,
    caractérisée en ce que
    le palier de fond (11, 22) est vissé, collé ou pressé avec sa région de bord radiale dans une ouverture frontale correspondante du boîtier de machine (12) en vue de sa fixation dans le boîtier de machine (12), le boîtier de machine (12), réalisé sous forme d'unité, étant incorporé dans un boîtier de pompe (14) qui est fermé du côté frontal opposé au moteur électrique (2) et le boîtier de pompe (14) étant réalisé en forme de pot, avec un fond (28) s'étendant obliquement par rapport à son axe médian (28), pour l'appui du palier de fond (22) de la partie de sortie (18).
  2. Machine à piston rotatif selon la revendication 1, caractérisée en ce que la partie d'entraînement (13) et/ou la partie de sortie (18) présentent, du côté opposé à l'espace de pompe (19), un tourillon (16, 25) et en ce que le palier de fond (11, 22), réalisé sous forme annulaire, présente un alésage de palier central (15, 24) pour recevoir le tourillon (16, 25).
EP06722634.0A 2005-03-16 2006-03-16 Machine a piston rotatif Active EP1859170B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005012511 2005-03-16
PCT/DE2006/000478 WO2006097092A1 (fr) 2005-03-16 2006-03-16 Machine a piston rotatif

Publications (2)

Publication Number Publication Date
EP1859170A1 EP1859170A1 (fr) 2007-11-28
EP1859170B1 true EP1859170B1 (fr) 2013-05-15

Family

ID=36617303

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06722634.0A Active EP1859170B1 (fr) 2005-03-16 2006-03-16 Machine a piston rotatif

Country Status (4)

Country Link
US (1) US7699592B2 (fr)
EP (1) EP1859170B1 (fr)
JP (1) JP5085528B2 (fr)
WO (1) WO2006097092A1 (fr)

Families Citing this family (9)

* 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
JP5840337B2 (ja) 2007-07-05 2016-01-06 ハーレー−ダビッドソン・モーター・カンパニー・グループ・エルエルシー ホイール速度センサ
ES2360270T3 (es) * 2007-08-31 2011-06-02 Robert Bosch Gmbh Motor de aire comprimido.
US8539931B1 (en) 2009-06-29 2013-09-24 Yousry Kamel Hanna Rotary internal combustion diesel engine
US9115646B2 (en) * 2010-06-17 2015-08-25 Exponential Technologies, Inc. Shroud for rotary engine
JP6084435B2 (ja) * 2012-08-08 2017-02-22 Ntn株式会社 内接歯車ポンプ
JP7430854B2 (ja) * 2019-11-01 2024-02-14 深▲セン▼市球形動力科技有限公司 球形ポンプロータ静圧支持構造及び静圧支持構造を備える球形ポンプ
DE102020206493A1 (de) * 2020-05-25 2021-11-25 Hyundai Motor Company Kraftstoffpumpe für ein Flüssigkraftstoff-Einspritzsystem eines Kraftfahrzeugs

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US324246A (en) * 1885-08-11 John flelding
US739207A (en) * 1902-05-28 1903-09-15 Jens Nielsen Rotary pump.
US2016605A (en) * 1932-02-24 1935-10-08 James L Kempthorne Pump, compressor, and the like
US2040178A (en) * 1933-11-11 1936-05-12 James L Kempthorne Pump or the like
US2501998A (en) * 1938-02-21 1950-03-28 Dutrey Andre Roto-volumetric pump
US2375923A (en) * 1940-08-02 1945-05-15 Johnson Otto William Pump
US3040664A (en) * 1959-04-13 1962-06-26 Flo Motive Corp Dual cavity fluid handling device
US3101700A (en) * 1960-06-14 1963-08-27 Meredith E Bowdish Rotary compressor or engine
US3816039A (en) * 1971-08-02 1974-06-11 Commercial Metals Co Rotary air pump with rotating and oscillating center piston
JPS59105081U (ja) * 1982-12-30 1984-07-14 いすゞ自動車株式会社 歯車ポンプ
US5145348A (en) * 1991-05-15 1992-09-08 Eaton Corporation Gerotor pump having an improved drive mechanism
US5425625A (en) 1994-03-24 1995-06-20 Lenco Enterprises Co., Ltd. Car-used electric fuel pump
US6739852B1 (en) * 1995-03-09 2004-05-25 Outland Technologies Usa, Inc. Rotary engine and method for determining engagement surface contours therefor
WO2001051770A1 (fr) * 2000-01-07 2001-07-19 Outland Technologies, Inc Moteur a deplacement positif, a rotors equilibres, et procede et appareil de pompage associes
US7318712B2 (en) 2002-08-02 2008-01-15 Cor Pumps + Compressors Ag Rotary piston machines comprising a displaceable inner housing
EP1664540B1 (fr) 2003-09-11 2007-01-24 Cor Pumps + Compressors AG Machine a piston rotatif
BRPI0414231B1 (pt) 2003-09-11 2013-03-19 mÁquina de Êmbolo rotativo.
DE102004026048A1 (de) * 2004-05-25 2005-12-29 Cor Pumps + Compressors Ag Spaltverluststromsteuerung

Also Published As

Publication number Publication date
WO2006097092A1 (fr) 2006-09-21
JP5085528B2 (ja) 2012-11-28
US7699592B2 (en) 2010-04-20
EP1859170A1 (fr) 2007-11-28
US20080219876A1 (en) 2008-09-11
JP2008537579A (ja) 2008-09-18

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