EP1859170A1 - Machine a piston rotatif - Google Patents

Machine a piston rotatif

Info

Publication number
EP1859170A1
EP1859170A1 EP06722634A EP06722634A EP1859170A1 EP 1859170 A1 EP1859170 A1 EP 1859170A1 EP 06722634 A EP06722634 A EP 06722634A EP 06722634 A EP06722634 A EP 06722634A EP 1859170 A1 EP1859170 A1 EP 1859170A1
Authority
EP
European Patent Office
Prior art keywords
rotary piston
housing
drive
drive part
pump
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
EP06722634A
Other languages
German (de)
English (en)
Other versions
EP1859170B1 (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 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

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
    • 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 between the teeth located work spaces that enlarge and shrink during rotation, whereby the conveying effect of the medium is generated in the unpublished (older) patent application 10 2004 044 297 Al described.
  • the invention has for its object to improve the rotary piston engine so that it is particularly inexpensive to produce without having to forego the advantages described in the existing prior application.
  • the rotary piston engine according to the invention with the characterizing features of the main claim and the secondary claim 8 has in contrast to special advantages. Characterized in that drive part and driven part are arranged within the machine housing and enclosed by the bottom bearing, on the one hand a subsequent adjustment of the game can be made to a basic setting, and on the other hand, a subsequent clamping of the running parts can be prevented, also because a structural unit between Floor storage and machine housing consists. So there remains a required axial clearance.
  • the bottom bearing is to be fixed in the machine housing with its radial edge portion in a corresponding end opening of the machine housing screwed or einklebbar or pressed, that is, that the bottom bearing can be attached to the machine housing in a variety of ways. Decisive is the achievement of a structural unit.
  • the machine housing is designed as a unit in a pump housing einlassbar, which is on the side facing away from the electric motor closed, " wober the " pump housing pot-shaped may be formed with a bottom extending obliquely to a central axis for supporting the bottom bearing of the driven part.
  • the space in front of at least one of the drive parts on the side facing away from the pump working space can be hydraulically connected to the pressure side of the pump working space, whereby the rotors can be loaded against each other, wherein boreholes or channels in the machine housing can serve for the hydraulic connection.
  • a play-compensating driving coupling is arranged between the shaft end of the electric motor and the drive part, in which embodiment the driving coupling is designed as a ring / plug-in part with a profiled inner recess for engagement the shaft end of the electric motor on the one hand and with plug-in pin on the other hand for engagement in corresponding plug-in openings on the side facing away from the pump chamber side of the drive part.
  • Such play-compensating driving clutches are known per se, but new for a rotary engine of the type claimed.
  • By means of this play-compensating driving clutch especially a decoupling of engine conditions on the pump and vice versa of pumping properties is achieved on the engine. Especially by creating a unit between pump parts and machine housing decoupling of the drive is important.
  • Figure 1 is a fuel pump with inventive rotary piston machine in longitudinal section according to the arrow I in Figure 2.
  • Fig. 3 is a driving coupling of the pump in longitudinal section and on an enlarged scale
  • 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. " Runner 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 front side of a machine housing 12 of the rotary lobe pump 1 and on which a frontally toothed drive member 13 can be axially supported.
  • 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 shown in an enlarged scale in Figures 3 and 4. 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. - In the machine housing 12, 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 driven part 18.
  • On the front sides of the drive member 13 and the output member 18 are provided for this purpose cycloidal gears having corresponding facing each other work surfaces. As a result, 12 pumping working spaces 19 are formed between these working surfaces and the inner wall of the machine housing, as shown in Figure 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 part 13 and the driven part 18 are additionally loaded in the direction of one another by the hydraulic delivery pressure, in which between the pump chamber on the pressure side and the opposite sides of the drive parts 13, 18 via " holes or channels Connection exists.
  • 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 shown in Figures 1 and 2, in certain cases cup-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 output member 18 rests and 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)

Abstract

L'invention concerne une machine à piston rotatif (1) comprenant un élément d'entrée (13) commandé par un moteur électrique (2) et un élément de sortie (18) présentant respectivement une denture côté face de manière à s'engrener pour transporter un fluide. L'élément d'entrée (13) et l'élément de sortie (18) sont logés dans un carter (12) et reliés au carter (12) par des supports de plancher (11, 22) des éléments d'entraînement (13, 18) pour former un module.
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 true EP1859170A1 (fr) 2007-11-28
EP1859170B1 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
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
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
AU2003260256A1 (en) 2002-08-02 2004-02-25 Cor Pumps + Compressors Ag Rotary piston machines comprising a displaceable inner housing
US7275920B2 (en) 2003-09-11 2007-10-02 Cor Pumps + Compressors Ag Rotary piston machine
CA2536279C (fr) 2003-09-11 2013-02-12 Cor Pumps + Compressors Ag Machine a piston rotatif
DE102004026048A1 (de) * 2004-05-25 2005-12-29 Cor Pumps + Compressors Ag Spaltverluststromsteuerung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006097092A1 *

Also Published As

Publication number Publication date
US7699592B2 (en) 2010-04-20
WO2006097092A1 (fr) 2006-09-21
EP1859170B1 (fr) 2013-05-15
JP5085528B2 (ja) 2012-11-28
US20080219876A1 (en) 2008-09-11
JP2008537579A (ja) 2008-09-18

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