EP0389838A2 - Rotationspumpengehäuse - Google Patents
Rotationspumpengehäuse Download PDFInfo
- 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
Links
Images
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES8901108 | 1989-03-30 | ||
ES8901108A ES2013417A6 (es) | 1989-03-30 | 1989-03-30 | Perfeccionamientos en la fabricacion de bombas rotativas. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0389838A2 true EP0389838A2 (de) | 1990-10-03 |
EP0389838A3 EP0389838A3 (de) | 1991-01-09 |
EP0389838B1 EP0389838B1 (de) | 1993-12-15 |
Family
ID=8261189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900104379 Expired - Lifetime EP0389838B1 (de) | 1989-03-30 | 1990-03-07 | Rotationspumpengehäuse |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0389838B1 (de) |
DE (2) | DE389838T1 (de) |
ES (1) | ES2013417A6 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0644317A1 (de) * | 1993-09-16 | 1995-03-22 | SIHI GmbH & Co KG | Flüssigkeitsringgaspumpe |
US5509789A (en) * | 1993-09-16 | 1996-04-23 | Sihi Gmbh & Co Kg | Liquid ring pump having a sheet metal working chamber casing |
WO2000057062A1 (de) * | 1999-03-22 | 2000-09-28 | Werner Rietschle Gmbh + Co. Kg | Pumpe zur erzeugung von druck oder unterdruck |
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 (en) * | 2011-12-05 | 2013-09-12 | Toyota Jidosha Kabushiki Kaisha | Oil pump for vehicle and vehicle with the same |
Citations (3)
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 (de) * | 1985-12-19 | 1987-06-24 | Gerhard Eckart | Drehkolbenpumpe zur Förderung von Gülle oder dgl. |
-
1989
- 1989-03-30 ES ES8901108A patent/ES2013417A6/es not_active Expired - Lifetime
-
1990
- 1990-03-07 DE DE1990104379 patent/DE389838T1/de active Pending
- 1990-03-07 DE DE90104379T patent/DE69005167D1/de not_active Expired - Lifetime
- 1990-03-07 EP EP19900104379 patent/EP0389838B1/de not_active Expired - Lifetime
Patent Citations (3)
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 (de) * | 1985-12-19 | 1987-06-24 | Gerhard Eckart | Drehkolbenpumpe zur Förderung von Gülle oder dgl. |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0644317A1 (de) * | 1993-09-16 | 1995-03-22 | SIHI GmbH & Co KG | Flüssigkeitsringgaspumpe |
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 (de) * | 1999-03-22 | 2000-09-28 | Werner Rietschle Gmbh + Co. Kg | Pumpe zur erzeugung von druck oder unterdruck |
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 (en) * | 2011-12-05 | 2013-09-12 | Toyota Jidosha Kabushiki Kaisha | Oil pump for vehicle and vehicle with the same |
Also Published As
Publication number | Publication date |
---|---|
DE389838T1 (de) | 1991-05-02 |
DE69005167D1 (de) | 1994-01-27 |
EP0389838B1 (de) | 1993-12-15 |
EP0389838A3 (de) | 1991-01-09 |
ES2013417A6 (es) | 1990-05-01 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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ITCL | It: translation for ep claims filed |
Representative=s name: DR. ING. A. RACHELI & C. |
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EL | Fr: translation of claims filed | ||
17P | Request for examination filed |
Effective date: 19910214 |
|
DET | De: translation of patent claims | ||
17Q | First examination report despatched |
Effective date: 19911216 |
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GRAA | (expected) grant |
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REF | Corresponds to: |
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EN | Fr: translation not filed | ||
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PLBE | No opposition filed within time limit |
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STAA | Information on the status of an ep patent application or granted ep patent |
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GBPC | Gb: european patent ceased through non-payment of renewal fee |
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26N | No opposition filed |