DE3109835A1 - Rotary pump with sliding vanes - has self-lubricating bushes in grooves in housing supporting vanes (DK 14.9.81) - Google Patents

Rotary pump with sliding vanes - has self-lubricating bushes in grooves in housing supporting vanes (DK 14.9.81)

Info

Publication number
DE3109835A1
DE3109835A1 DE19813109835 DE3109835A DE3109835A1 DE 3109835 A1 DE3109835 A1 DE 3109835A1 DE 19813109835 DE19813109835 DE 19813109835 DE 3109835 A DE3109835 A DE 3109835A DE 3109835 A1 DE3109835 A1 DE 3109835A1
Authority
DE
Germany
Prior art keywords
vanes
grooves
self
rotary lobe
housing
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.)
Ceased
Application number
DE19813109835
Other languages
German (de)
Inventor
Hermann 1560 Koebenhavn Lidlgruber
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19813109835 priority Critical patent/DE3109835A1/en
Publication of DE3109835A1 publication Critical patent/DE3109835A1/en
Ceased legal-status Critical Current

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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/348—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the vanes positively engaging, with circumferential play, an outer rotatable member
    • 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
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F01C21/0818—Vane tracking; control therefor
    • F01C21/0827—Vane tracking; control therefor by mechanical means
    • F01C21/0836—Vane tracking; control therefor by mechanical means comprising guiding means, e.g. cams, rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

The rotary-vane pump has a cylindrical housing in which the rotor, containing positively-controlled sliding vanes, is eccentrically mounted. The vanes (2) are supported by self-lubricating bearing bushes (5), fitted in grooves in the housing inner surface. They can be controlled by rings (4) working in recesses in the rotor end faces and closed by covers, and they can be of magnetic material. The design allows the pump to run dry for long periods without damage.

Description

Drehko lbenpumpe Rotary piston pump

Die Erfindung betrifft eine Drehkolbenpumpe mit zylinderförmigem Gehäuse und exzentrisch gelagertem Kolben so--wie mit zwangsgesteuerten Schiebern. The invention relates to a rotary lobe pump with a cylindrical Housing and eccentrically mounted piston as well as with positively controlled slides.

Drehkolbenpumpen dieser Art müssen über eine gewisse Zeit trocken laufen können, ohne Schaden zu nehmen. Dabei muß das Saugvermögen erhalten bleiben, sowohl bei Inbetriebsetzung, wie auch nach längerem Trockenlaufen. Rotary lobe pumps of this type must dry out over a certain period of time can walk without being damaged. The pumping speed must be maintained, both when starting up and after running dry for a long time.

Bei bekannten Pumpen dieser Art entstehen aber unangenehme Abnützungsprobleme, wenn die zwangsgesteuerten Schieber trocken an der Innenfläche des Gehäuses gleiten. Die bisher vorgeschlagenen Methoden, um einen Trockenlauf zu ermöglichen, sind ebenso kompliziert wie kostspielig. With known pumps of this type, however, there are unpleasant wear problems, when the positively controlled slides slide dry on the inner surface of the housing. The methods proposed so far to enable dry running are also complicated and expensive.

Der Erfindung liegt die Aufgabe zugrunde, eine Möglichkeit zu schaffen, um einen auch längeren Trockenlauf einer solchen Drehkolbenpumpe zu ermöglichen. The invention is based on the object of creating a possibility about a longer dry run of such Rotary lobe pump to enable.

Nach der Erfindung wird diese Aufgabe durch die Merkmale des kennzeichnenden Teils des Patentanspruchs 1 gelöst. According to the invention this object is achieved by the features of the characterizing part Part of claim 1 solved.

Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen. Advantageous further developments result from the subclaims.

Bei einer Pumpe nach der Erfindung werden die erwünschten Vorteile dadurch erreicht, daß in jeder Seite der Innenwand des Gehäuses eine eingedrehte Nut vorhanden ist, in welche jeweils ein Laufring eingelegt ist. Die Maße dieses Laufrings sind so gewählt, daß er bei allen infrage kommenden Drehzahlen mit Hilfe der gepumpten Flüssigkeit unter dem Druck der Schieber selbstschmierend und leicht drehbar ist. Die Werte von Breite, Stärke und Toleranzen der Laufringe sind jeweils durch Versuche zu ermitteln. With a pump according to the invention, the desired advantages achieved in that in each side of the inner wall of the housing a screwed Groove is present, in each of which a race is inserted. The dimensions of this Race rings are chosen so that it can be used at all possible speeds of the pumped liquid under the pressure of the gate valve self-lubricating and light is rotatable. The values of width, thickness and tolerances of the races are respectively to be determined by experiments.

Auf diese Weise wird erreicht, daß bei derart zwangsgesteuerten Schiebern unter Vermeidung der Nachteile bekannter Drehkolbenpumpen mit einem relativ großen Anpreßdruck gearbeitet werden kann. In this way it is achieved that with such positively controlled slides while avoiding the disadvantages of known rotary lobe pumps with a relatively large Contact pressure can be worked.

Bei einer Ausführungsform der Zwangssteuerung nach der Erfindung werden die Schieber durch zwei in jeder Seite konzentrisch zum Gehäuse gelagerte Ringe nach außen gedrückt. Diese Ringe liegen in Vertiefungen der Kolbenwände, die durch angeschraubte Deckel abgedeckt sind. In one embodiment of the positive control according to the invention the slides are mounted concentrically to the housing by two on each side Rings pressed outwards. These rings are located in recesses in the piston walls, which are covered by screwed-on covers.

Bei einer anderen Ausführungsform der Zwangssteuerung bestehen die Schieber aus magnetischem Material und sind so angeordnet, daß jeweils der gleiche Pol nach außen zeigt. In another embodiment of the priority control exist Sliders made of magnetic material and are arranged so that each is the same Pole pointing outwards.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. Es zeigt Fig. 1 einen Querschnitt durch eine Drehkolbenpumpe nach der Erfindung, Fig. 2 einen Längsschnitt, Fig. 3 einen Ausschnitt aus dem mittleren Teil des Gehäuses und Fig. 4 einen Teil des Kolbens mit einseitig angebrachtem Deckel. An embodiment of the invention is described below with reference to FIG Drawing explained in more detail. 1 shows a cross section through a rotary lobe pump according to the invention, Fig. 2 is a longitudinal section, Fig. 3 is a detail from the middle Part of the housing and FIG. 4 shows a part of the piston with a cover attached on one side.

Bei dem in einem Gehäuse gelagerten Kolben 1 einer Drehkolbenpumpe nach der Erfindung sind die Schieber 2 in radial angeordneten Schlitzen leicht verschiebbar .gelagert; sie werden dort durch in Vertiefungen 3 angeordnete Ringe 4 nach außen gegen die Laufringe 5 gehalten. Die Laufringe 5 sind in Nuten in der Innenwand des Gehäuses 6 gelagert. In the case of the piston 1 of a rotary lobe pump, which is mounted in a housing According to the invention, the slides 2 are easily displaceable in radially arranged slots .stored; they are there by rings 4 arranged in depressions 3 to the outside held against the races 5. The races 5 are in grooves in the inner wall of the Housing 6 stored.

Die Vertiefungen 3 in den Stirnflächen des Kolbens 1 sind durch die Deckel 7 abgedichtet; zwischen den Deckeln 7 und den Stirnwänden 8 des Gehäuses sind wiederum Dichtungen 9 angeordnet. The depressions 3 in the end faces of the piston 1 are through the Cover 7 sealed; between the covers 7 and the end walls 8 of the housing seals 9 are in turn arranged.

Die Ausführungsform mit Schiebern aus magnetischem Material ist nicht eigens dargestellt. Sie entspricht im wesentlichen der oben beschriebenen Ausführungsform, bei der lediglich die Vertiefungen 3, die Ringe 4 und die Deckel 7 wegfallen. The embodiment with slides made of magnetic material is not specially shown. It essentially corresponds to the embodiment described above, in which only the depressions 3, the rings 4 and the cover 7 are omitted.

Claims (4)

Drehkolbenpumpe Patentansprüche Drehkolbenpumpe mit zylindrischem Gehäuse und exzentrisch gelagertem Kolben sowie mit zwangsgesteuerten Schiebern, dadurch gekennzeichnet, daß die Schieber (2) auf selbstschmierende Laufringe (5) abgestützt sind, die in Nuten in der Gehäuseinnenfläche angeordnet sind. Rotary lobe pump Patent claims Rotary lobe pump with cylindrical Housing and eccentrically mounted piston as well as with positively controlled slides, characterized in that the slide (2) on self-lubricating races (5) are supported, which are arranged in grooves in the housing inner surface. 2. Drehkolbenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Schieber (2) durch in Vertiefungen (3) in der Stirnfläche des Kolbens (1) gelagerte Ringe (4) zwangsgesteuert sind. 2. Rotary lobe pump according to claim 1, characterized in that the Slide (2) mounted in depressions (3) in the face of the piston (1) Rings (4) are positively controlled. 3. Drehkolbenpumpe nach Anspruch 2, dadurch gekennzeichnet, daß die Vertiefungen durch Deckel (7) abgedichtet sind. 3. Rotary lobe pump according to claim 2, characterized in that the Wells are sealed by cover (7). 4. Drehkolbenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Schieber aus magnetischem Material bestehen. 4. Rotary lobe pump according to claim 1, characterized in that the Slide made of magnetic material.
DE19813109835 1981-03-14 1981-03-14 Rotary pump with sliding vanes - has self-lubricating bushes in grooves in housing supporting vanes (DK 14.9.81) Ceased DE3109835A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813109835 DE3109835A1 (en) 1981-03-14 1981-03-14 Rotary pump with sliding vanes - has self-lubricating bushes in grooves in housing supporting vanes (DK 14.9.81)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813109835 DE3109835A1 (en) 1981-03-14 1981-03-14 Rotary pump with sliding vanes - has self-lubricating bushes in grooves in housing supporting vanes (DK 14.9.81)

Publications (1)

Publication Number Publication Date
DE3109835A1 true DE3109835A1 (en) 1982-09-23

Family

ID=6127238

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813109835 Ceased DE3109835A1 (en) 1981-03-14 1981-03-14 Rotary pump with sliding vanes - has self-lubricating bushes in grooves in housing supporting vanes (DK 14.9.81)

Country Status (1)

Country Link
DE (1) DE3109835A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036251A1 (en) * 1990-11-14 1992-05-21 Bosch Gmbh Robert Cellular pump or compressor - is for vehicle air conditioning and has mechanical pressure device to hold vanes in position
WO1994009260A1 (en) * 1992-10-15 1994-04-28 Fanja Ltd. Sliding vane machine
EP0674104A1 (en) * 1994-03-19 1995-09-27 Delphi France Automotive Systems Rotary vane pump
ES2100108A2 (en) * 1992-06-05 1997-06-01 Gilardini Spa Rotary blade pump
US20110271674A1 (en) * 2009-01-13 2011-11-10 Avl North America Inc. Sliding vane rotary expander for waste heat recovery system
US20220307497A1 (en) * 2019-05-23 2022-09-29 Pierburg Pump Technology Gmbh Variable displacement lubricant pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE726912C (en) * 1939-04-25 1942-10-22 Demag Ag Rotary piston machine of the multi-cell design
US2684037A (en) * 1952-03-20 1954-07-20 Scognamillo Enginecring Compan Rotary pump
DE1023850B (en) * 1956-12-07 1958-02-06 Herbert J Venediger Dr Ing Fan or compressor of the multi-cell design
FR1186495A (en) * 1956-12-01 1959-08-25 Rotating machine that can be used as a pump and as a turbine
US3539281A (en) * 1968-07-22 1970-11-10 Ingersoll Rand Co Sliding-vane rotary fluid displacement machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE726912C (en) * 1939-04-25 1942-10-22 Demag Ag Rotary piston machine of the multi-cell design
US2684037A (en) * 1952-03-20 1954-07-20 Scognamillo Enginecring Compan Rotary pump
FR1186495A (en) * 1956-12-01 1959-08-25 Rotating machine that can be used as a pump and as a turbine
DE1023850B (en) * 1956-12-07 1958-02-06 Herbert J Venediger Dr Ing Fan or compressor of the multi-cell design
US3539281A (en) * 1968-07-22 1970-11-10 Ingersoll Rand Co Sliding-vane rotary fluid displacement machine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036251A1 (en) * 1990-11-14 1992-05-21 Bosch Gmbh Robert Cellular pump or compressor - is for vehicle air conditioning and has mechanical pressure device to hold vanes in position
ES2100108A2 (en) * 1992-06-05 1997-06-01 Gilardini Spa Rotary blade pump
WO1994009260A1 (en) * 1992-10-15 1994-04-28 Fanja Ltd. Sliding vane machine
US5558511A (en) * 1992-10-15 1996-09-24 Fanja Ltd. Sliding vane machine having vane guides and inlet opening regulation
AU680208B2 (en) * 1992-10-15 1997-07-24 Fanja Ltd Sliding vane machine
EP0674104A1 (en) * 1994-03-19 1995-09-27 Delphi France Automotive Systems Rotary vane pump
US20110271674A1 (en) * 2009-01-13 2011-11-10 Avl North America Inc. Sliding vane rotary expander for waste heat recovery system
US8839620B2 (en) * 2009-01-13 2014-09-23 Avl Powertrain Engineering, Inc. Sliding vane rotary expander for waste heat recovery system
US20220307497A1 (en) * 2019-05-23 2022-09-29 Pierburg Pump Technology Gmbh Variable displacement lubricant pump
US11982272B2 (en) * 2019-05-23 2024-05-14 Pierburg Pump Technology Gmbh Variable displacement lubricant pump having a radial inlet or outlet opening axially between at least two bushing rings

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8131 Rejection