DD299241A7 - ROTARY PUMP - Google Patents
ROTARY PUMP Download PDFInfo
- Publication number
- DD299241A7 DD299241A7 DD33014689A DD33014689A DD299241A7 DD 299241 A7 DD299241 A7 DD 299241A7 DD 33014689 A DD33014689 A DD 33014689A DD 33014689 A DD33014689 A DD 33014689A DD 299241 A7 DD299241 A7 DD 299241A7
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- slide
- rotor
- housing
- length
- slider
- Prior art date
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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F04C18/3442—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the inlet and outlet opening
Abstract
Die Erfindung betrifft eine Drehschieberpumpe mit einem einstueckigen, ueber die ganze Schlitzlaenge des Rotors gleitenden Schieber. Ihr Gehaeuse ist als Kreiszylinder ausgefuehrt. Die Schieberlaenge ist etwas groeszer als die kleinste Sekante durch den Rotormittelpunkt und mindestens doppelt so grosz wie die Differenz der Durchmesser des Gehaeuses und des Rotors. Der Schieber ist in radialer Richtung elastisch ausgebildet. Das Gehaeuse ist mit geringem Aufwand herstellbar. Die Pumpe weist einen geringen Schieberverschleisz und einen reduzierten Energieverbrauch auf und ist fuer einen Betrieb mit hoeheren Drehzahlen geeignet.{Drehschieberpumpe; einstueckiger Schieber; Gehaeuse; Kreiszylinder; Schieberlaenge; kleinste Sekante; Differenz der Durchmesser, elastisch ausgebildet}The invention relates to a rotary vane pump with a one-piece, sliding over the entire slot length of the rotor slide. Your case is designed as a circular cylinder. The slide length is slightly larger than the smallest secant through the rotor center and at least twice as large as the difference in the diameter of the housing and the rotor. The slide is designed to be elastic in the radial direction. The housing can be produced with little effort. The pump has low spool wear and reduced power consumption and is suitable for higher speed operation. {Rotary vane pump; one-time slide; Casing; A circular cylinder; Schieberlaenge; smallest secant; Difference in diameter, elasticized}
Description
Ausführungsbeispielembodiment
In der zugehörigen Zeichnung zeigenIn the accompanying drawing show
Fig. 1: die Schnittdarstellung der Drehschieberpumpe mit dem Schieber in der „Weitlage",1 shows the sectional view of the rotary vane pump with the slider in the "long-range",
Fig. 2: die Schnittdarstellung der Drehschieberpumpe mit dem Schieber in der „Englage",2 shows the sectional view of the rotary vane pump with the slider in the "Englage",
Fig.3: die Draufsicht des Schiebers,3: the top view of the slider,
Fig.4: den Schnitt A-A nach Fig.3.4 shows the section A-A of Figure 3.
Dargestellt sind nur die für das Wesen der Erfindung wichtigen Pumpenteile.Shown are only important for the essence of the invention pump parts.
Die Pumpe besteht aus einem Gehäuse 1, zwei stirnseitigen Lagerdeckeln, einem exzentrisch im Gehäuse 1 gelagerten Rotor 2 mit einem in seinem Schlitz 3 gleitenden, einstückigen Schieber 4. Bei der gekennzeichneten Drehrichtung befindet sich rechts neben der Berührungslinie des Rotors 2 mit dem Gehäuse 1 die Saugöffnung 5 und links dieser Linie die Drucköffnung 6. An die Saugöffnung 5 ist der Saugstutzen 7, an die Drucköffnung 6 der Druckstutzen 8 angeflanscht.The pump consists of a housing 1, two end bearing caps, a rotor 2 mounted eccentrically in the housing 1 with a sliding in its slot 3, one-piece slide 4. In the marked direction of rotation is located right next to the line of contact of the rotor 2 with the housing 1 the Suction opening 5 and to the left of this line the pressure opening 6. At the suction opening 5 of the suction nozzle 7, flanged to the pressure port 6 of the discharge nozzle 8.
Der Innendurchmesser 9 des Gehäuses 1 ist wesentlich größer als der Durchmesser 10 des Rotors 2. Das Gehäuse 1, genauer seine Innenwandung, ist als Kreiszylinder ausgeführt.The inner diameter 9 of the housing 1 is substantially larger than the diameter 10 of the rotor 2. The housing 1, more precisely its inner wall, is designed as a circular cylinder.
Der Schieber 4 besteht aus den aufeinanderliegenden Hälften 11,12, die im weitaus größten Drehwinkelbereich in axialer und radialer Richtung leicht versetzt zueinander angeordnet sind (Fig.3). Die Hälfte 11 besitzt eine Aussparung 13, die Hälfte 12 eine Aussparung 14. Die Aussparungen 13,14 liegen indem genannten Drehwinkelbereich in einer Flucht. In sie ist ein elastisches Verbindungselement 15 aus Gummi eingepaßt (Fig.4). Die Schieberlänge 16 ist in dem genannten Drehwinkelbereich etwas größer als die kleinste Sekante durch den Rotormittelpunkt in der „Englage" des Schieber 4 (Fig.2). Sie ist mindestens doppelt so groß wie die Differenz der Durchmesser 9,10 des Gehäuses 1 und des Rotors 2.The slider 4 consists of the superimposed halves 11,12, which are arranged slightly offset from each other in the far largest rotational angle range in the axial and radial directions (Figure 3). The half 11 has a recess 13, the half 12 a recess 14. The recesses 13,14 are in said rotational angle range in alignment. In it, an elastic connecting element 15 made of rubber is fitted (Fig.4). The slide length 16 is slightly larger than the smallest secant through the rotor center point in the "Englage" of the slide 4 (FIG. 2) in the mentioned rotation angle range, which is at least twice as large as the difference between the diameters 9, 10 of the housing 1 and Rotor 2.
Bei Pumpen mit geringer Förderleistung und Drehzahl kann der Schieber 4 auch im ganzen aus einem elastischen Material gefertigt sein.For pumps with low flow and speed of the slide 4 can be made as a whole of an elastic material.
Die Funktionsweise der beschriebenen Pumpe beruht im wesentlichen auf dem Wirkprinzip der Drehschieberpumpen. Die Abweichungen gegenüber den bekannten Pumpen ergeben sich aus dem andersartigen Aufbau des Schiebers 4.The operation of the pump described is based essentially on the operating principle of the rotary vane pumps. The deviations from the known pumps result from the different structure of the slide. 4
Bei Drehung des Rotors 2 in der gekennzeichneten Drehrichtung wird die Außenkante 17 des Schiebers 4 infolge der Fliehkraft gegen die Innenwandung des Gehäuses 1 gedrückt (Fig. 1). Die gegenüberliegende Kante 18 berührt dagegen in einem bestimmten Drehwinkelbereich nicht die Innenwandung. Nur in einem Winkelbereich von ±10° um die „Englage" des Schiebers 4 (Fig. 2) berühren beide Kanten 17,18 gleichzeitig die Innenwandung. Jede Kante 17,18 berührt also in einem Winkelbereich von etwa 200° die Innenwandung, in einem Winkelbereich von etwa 160° befinden sie sich in einem Abstand zu ihr.Upon rotation of the rotor 2 in the indicated direction of rotation, the outer edge 17 of the slider 4 is pressed against the inner wall of the housing 1 as a result of the centrifugal force (FIG. 1). The opposite edge 18, however, does not touch the inner wall in a certain rotation angle range. Only at an angle range of ± 10 ° about the "Englage" of the slide 4 (Figure 2) do both edges 17, 18 touch the inner wall simultaneously, so that each edge 17, 18 touches the inner wall in an angular range of about 200 ° Angular range of about 160 °, they are at a distance to her.
Währenddes Gleitens werden die Kanten 17,18 durch die Reibung erwärmt, in dem sich jeweils anschließenden Drehwinkelbereich ohne Berührung kühlen sie sich ab. Erwärmung und Abkühlung finden in einem ständigen Wechsel statt. Die Schieberbeanspruchung, der Verschleiß und das Gegendrehmoment des Rotors 2 sind damit geringer als bei ununterbrochener Berührung der Innenwandung durch beide Kanten des Schiebers.During sliding, the edges 17,18 are heated by the friction, in which each subsequent rotation angle range without contact they cool. Heating and cooling take place in a constant change. The slider load, the wear and the counter torque of the rotor 2 are thus lower than in continuous contact of the inner wall by both edges of the slider.
Der Raum zwischen dem Gehäuse 1 und dem Rotor 2 ist im weitaus größeren Drehwinkelbereich in den Schöpf raum 19 und den Kompressionsraum 20 getrennt (Fig. 1). Nur in dem Bereich um die „Englage" gibt es noch kurzzeitig einen dritten Raum 21 (Fig. 2).The space between the housing 1 and the rotor 2 is in a much larger rotation angle range in the scooping chamber 19 and the compression space 20 separated (Fig. 1). Only in the area around the "Englage" there is still a short time a third room 21 (Fig. 2).
In Betracht gezogene Druckschriften: DD-PS 223773, F04C 25/02 DD-PS 278620, F04C 25/00 DE-OS 3813132, F04C 2/344 DE-OS 3730583, F 04 C 18/344Under consideration: DD-PS 223773, F04C 25/02 DD-PS 278620, F04C 25/00 DE-OS 3813132, F04C 2/344 DE-OS 3730583, F 04 C 18/344
Claims (3)
Zweckmäßige Ausgestaltungen dieser Merkmale werden im anschließenden Ausführungsbeispiel erläutert.The invention has for its object to develop a rotary vane pump with a one-piece slide whose housing can be produced with little effort, which has a low Schieberverschleiß and reduced energy consumption and which is suitable for operation at higher speeds. The solution to this problem includes as a known element a one-piece, over the entire slot length of the rotor sliding slide. According to the invention, the housing is designed as a circular cylinder. The slide length is slightly larger than the smallest secant through the rotor center and at least twice as large as the difference in diameter of the housing and the rotor. The slide is designed to be elastic in the radial direction.
Advantageous embodiments of these features will be explained in the following embodiment.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD33014689A DD299241A7 (en) | 1989-06-29 | 1989-06-29 | ROTARY PUMP |
DE19904002268 DE4002268A1 (en) | 1989-06-29 | 1990-01-26 | ROTARY VALVE PUMP |
GB9011518A GB2233393A (en) | 1989-06-29 | 1990-05-23 | A rotary sliding vane pump |
FR9007998A FR2649164A1 (en) | 1989-06-29 | 1990-06-26 | ROTATING DRAWER PUMP |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD33014689A DD299241A7 (en) | 1989-06-29 | 1989-06-29 | ROTARY PUMP |
Publications (1)
Publication Number | Publication Date |
---|---|
DD299241A7 true DD299241A7 (en) | 1992-04-09 |
Family
ID=5610354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD33014689A DD299241A7 (en) | 1989-06-29 | 1989-06-29 | ROTARY PUMP |
Country Status (4)
Country | Link |
---|---|
DD (1) | DD299241A7 (en) |
DE (1) | DE4002268A1 (en) |
FR (1) | FR2649164A1 (en) |
GB (1) | GB2233393A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5827219A (en) * | 1993-10-28 | 1998-10-27 | Medrad, Inc. | Injection system and pumping system for use therein |
IT1278038B1 (en) * | 1995-03-06 | 1997-11-17 | Isprobi Srl | DEVICE FOR THE CONTROLLED INJECTION OF PROGRAMMABLE QUANTITIES OF LIQUID. |
US9719351B2 (en) * | 2013-07-10 | 2017-08-01 | Spx Corporation | Rotary vane motor with split vane |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB739334A (en) * | 1953-01-07 | 1955-10-26 | Vickers Electrical Co Ltd | Improvements in rotary pumps or compressors |
GB848760A (en) * | 1957-06-28 | 1960-09-21 | Andrew Fraser | Improvements in or relating to vaned rotary pumps and/or motors |
GB1231187A (en) * | 1967-10-09 | 1971-05-12 | ||
GB1541174A (en) * | 1977-05-20 | 1979-02-21 | Goh Hiow Lee | Rotary internal-combustion engine |
IT1190114B (en) * | 1985-06-15 | 1988-02-10 | Barmag Barmer Maschf | FIN AND PUMP PUMP, WITH HOOK SHAPED FINS |
-
1989
- 1989-06-29 DD DD33014689A patent/DD299241A7/en not_active IP Right Cessation
-
1990
- 1990-01-26 DE DE19904002268 patent/DE4002268A1/en not_active Withdrawn
- 1990-05-23 GB GB9011518A patent/GB2233393A/en not_active Withdrawn
- 1990-06-26 FR FR9007998A patent/FR2649164A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
GB2233393A (en) | 1991-01-09 |
GB9011518D0 (en) | 1990-07-11 |
DE4002268A1 (en) | 1991-01-03 |
FR2649164A1 (en) | 1991-01-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RPV | Change in the person, the name or the address of the representative (searches according to art. 11 and 12 extension act) | ||
ENJ | Ceased due to non-payment of renewal fee |