EP0389838A2 - Carter pour pompe rotative - Google Patents

Carter pour pompe rotative Download PDF

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Publication number
EP0389838A2
EP0389838A2 EP90104379A EP90104379A EP0389838A2 EP 0389838 A2 EP0389838 A2 EP 0389838A2 EP 90104379 A EP90104379 A EP 90104379A EP 90104379 A EP90104379 A EP 90104379A EP 0389838 A2 EP0389838 A2 EP 0389838A2
Authority
EP
European Patent Office
Prior art keywords
plate
casing
manufacture
rotors
shafts
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
EP90104379A
Other languages
German (de)
English (en)
Other versions
EP0389838A3 (fr
EP0389838B1 (fr
Inventor
Candido Granes Campasol
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.)
Inoxpa SA
Original Assignee
Inoxpa SA
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 Inoxpa SA filed Critical Inoxpa SA
Publication of EP0389838A2 publication Critical patent/EP0389838A2/fr
Publication of EP0389838A3 publication Critical patent/EP0389838A3/fr
Application granted granted Critical
Publication of EP0389838B1 publication Critical patent/EP0389838B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter

Definitions

  • This present Invention Patent discloses improvements in the manufacture of rotary pumps particularly of the type of pump based on the use of a lobar rotor.
  • This type of pump makes possible the trans­fer of various liquids without causing separation in the liquid being transferred given that the pumping action is volumetric, that is to say, taking a pre­determined volume corresponding to the space between the rotor lobes and conveying it from the entry point of the liquid to the exit thus ensuring a continuous flow within the pipework or exit circuit at a pressure dependent on the circuit losses.
  • This category of pump is fitted with two rotors mounted on parallel axes actuated by a gear train in such a manner that the two rotors engage as mentioned previously.
  • the two rotors rotate in a chamber defined by an enclosure body which in turn defines the periphery of the chamber and two side walls one of which is a closure plate fitted to the main pump body.
  • the tradit­ional method of construction of this type of pump takes the form of a rotor casing as mentioned above coupled up to the actuating gear train and closed by means of a front cover fitted to the open face of the said casing.
  • the improvements object of this Invention Patent are designed to provide both the pump body and the enclosure component or front cover having absolutely novel design characteristics which result in a considerable manufacturing cost improvement in these items as well as offering functional qual­ities which resolve the difficulties in obtaining a satisfactory seal.
  • the driving shafts of the rotors terminate level with or below the outer plane of the said rotors so as to permit the pressed sheet casing to be almost fully level with the plane formed by the outer face of the said rotors.
  • a stepped flange on the periphery of the sealing plate coinciding with the side wall of the casing provides a simple means of sealing the chamber, the two elements being mutually joined with bolts and having interposed in the coincident area a sealing means.
  • the rotary pump provided with these improvements comprises a body formed by the seal retaining plate -1- through which passes the shafts -2- and -3- of the respective rotors -4- and -5- and a casing or cover -6- made for preference in a metal stamping and having one lateral face which determines the chamber housing the rotors -4- and -5- and the other frontal or closure face -7- which is adapted to the lateral faces of the rotors to provide the enclosed casing of the rotor chamber.
  • Slight protrusions -8- and -9- on the front face -7- allow a clearance for the extremities of the shafts -2- and -3- so as to avoid interference.
  • the rotors -4- and -5- are mounted on the shafts -2- and -3- such that the front faces are practically level with the plane of the front surface of the rotors.
  • the seal retaining plate is a functional component in the assembly of the pump, having a generally flat structure with cavities to accept the seal assemblies -10- and -11- for the shafts -2- and -3- respectively and having also on its periphery a a stepped flange forming the wing -12--which is coupled up to the flat surface of hte flange -13- of the casing -6-, the positioning of these two components being mutually ensured by means of dowels -14- and the attachment by means of screws or other means which would permit disassembly.
  • a space is provided to house a sealing material -16- such a flexible joint or other type of seal.
  • the casing -6- is provided with orifices -18- and -19- for the entry and exit of the fluid which is to be pumped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
EP19900104379 1989-03-30 1990-03-07 Carter pour pompe rotative Expired - Lifetime EP0389838B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES8901108A ES2013417A6 (es) 1989-03-30 1989-03-30 Perfeccionamientos en la fabricacion de bombas rotativas.
ES8901108 1989-03-30

Publications (3)

Publication Number Publication Date
EP0389838A2 true EP0389838A2 (fr) 1990-10-03
EP0389838A3 EP0389838A3 (fr) 1991-01-09
EP0389838B1 EP0389838B1 (fr) 1993-12-15

Family

ID=8261189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900104379 Expired - Lifetime EP0389838B1 (fr) 1989-03-30 1990-03-07 Carter pour pompe rotative

Country Status (3)

Country Link
EP (1) EP0389838B1 (fr)
DE (2) DE69005167D1 (fr)
ES (1) ES2013417A6 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644317A1 (fr) * 1993-09-16 1995-03-22 SIHI GmbH & Co KG Pompe à anneau liquide
US5509789A (en) * 1993-09-16 1996-04-23 Sihi Gmbh & Co Kg Liquid ring pump having a sheet metal working chamber casing
WO2000057062A1 (fr) * 1999-03-22 2000-09-28 Werner Rietschle Gmbh + Co. Kg Pompe pour la generation de pression ou de depression
US6729863B2 (en) 1999-03-22 2004-05-04 Werner Rietschle Gmbh & Co. Kg Rotary pump having high and low pressure ports in the housing cover
WO2013084039A3 (fr) * 2011-12-05 2013-09-12 Toyota Jidosha Kabushiki Kaisha Pompe à huile pour véhicule et véhicule doté de celle-ci

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157769A (en) * 1984-04-16 1985-10-30 Gilardini Spa A supercharger for heat engines of vehicles
DE3436205A1 (de) * 1984-10-03 1986-04-03 Wankel Gmbh, 1000 Berlin Parallel- und aussenachsiges im kaemmeingriff arbeitendes rotationskolbengeblaese
EP0225937A1 (fr) * 1985-12-19 1987-06-24 Gerhard Eckart Pompe à piston rotative pour le refoulement de purin ou produits similaires

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157769A (en) * 1984-04-16 1985-10-30 Gilardini Spa A supercharger for heat engines of vehicles
DE3436205A1 (de) * 1984-10-03 1986-04-03 Wankel Gmbh, 1000 Berlin Parallel- und aussenachsiges im kaemmeingriff arbeitendes rotationskolbengeblaese
EP0225937A1 (fr) * 1985-12-19 1987-06-24 Gerhard Eckart Pompe à piston rotative pour le refoulement de purin ou produits similaires

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644317A1 (fr) * 1993-09-16 1995-03-22 SIHI GmbH & Co KG Pompe à anneau liquide
US5509789A (en) * 1993-09-16 1996-04-23 Sihi Gmbh & Co Kg Liquid ring pump having a sheet metal working chamber casing
AU673761B2 (en) * 1993-09-16 1996-11-21 Sihi Gmbh & Co Kg Liquid ring gas pump
WO2000057062A1 (fr) * 1999-03-22 2000-09-28 Werner Rietschle Gmbh + Co. Kg Pompe pour la generation de pression ou de depression
AU762304B2 (en) * 1999-03-22 2003-06-19 Werner Rietschle Gmbh + Co. Kg Pump for generating pressure or negative pressure
US6729863B2 (en) 1999-03-22 2004-05-04 Werner Rietschle Gmbh & Co. Kg Rotary pump having high and low pressure ports in the housing cover
CN1324239C (zh) * 1999-03-22 2007-07-04 维尔纳·里彻尔两合公司 用于产生压力或真空的泵
WO2013084039A3 (fr) * 2011-12-05 2013-09-12 Toyota Jidosha Kabushiki Kaisha Pompe à huile pour véhicule et véhicule doté de celle-ci

Also Published As

Publication number Publication date
EP0389838A3 (fr) 1991-01-09
EP0389838B1 (fr) 1993-12-15
DE389838T1 (de) 1991-05-02
DE69005167D1 (de) 1994-01-27
ES2013417A6 (es) 1990-05-01

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