EP1948936A1 - Vakuumpumpe - Google Patents
VakuumpumpeInfo
- Publication number
- EP1948936A1 EP1948936A1 EP06792218A EP06792218A EP1948936A1 EP 1948936 A1 EP1948936 A1 EP 1948936A1 EP 06792218 A EP06792218 A EP 06792218A EP 06792218 A EP06792218 A EP 06792218A EP 1948936 A1 EP1948936 A1 EP 1948936A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wing
- vacuum pump
- rotor
- pump according
- 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.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
-
- 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
- F04C2220/00—Application
- F04C2220/10—Vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/06—Polyamides, e.g. NYLON
Definitions
- the invention relates to a vacuum pump with a wing, a pump housing and a rotor rotatably mounted therein, wherein the wing is slidably mounted in the rotor and the wing tips on both sides protrude radially from the rotor and abut the inner peripheral surface of the pump housing, whereby the wing a suction chamber and a Pressure chamber defined.
- a vacuum pump which has a pump housing in which a rotor is arranged.
- This rotor supports a wing, which rests against the inner peripheral side of the housing.
- the wing is constructed in two parts, so that it can take different lengths. This ensures that the wing always rests against the inner peripheral surface and divides the pump chamber into a pressure chamber and a suction chamber.
- the wing tips are provided with inserts, which consist of a hard material.
- inserts consist of a hard material.
- the invention has for its object to provide a vacuum pump in which the wear is minimal or the pump is repairable.
- the wing consists of a polyamide.
- the housing of the vacuum pump is made of steel, which has the advantage that the housing can accommodate high forces and still easy to work with.
- the wing is made of a polyamide which is hard enough but still does not or negligibly wears the inner circumferential surface of the pump housing. In case of wear, only the wing needs to be replaced.
- the particular one-piece design of the wing allows an inexpensive production and storage. A constant length allows a simple design of the wing and allows its easy production.
- the polyamide is a polyamide 11, a polyamide 12, a polyamide 6, a polyamide 66, en PACM-12 or a PA 6-3-T with high temperature resistance.
- PA 610 and PA612 have a very high dimensional stability.
- a further embodiment provides that the polyamide is crosslinked, in particular radiation crosslinked. This improves the properties in terms of hardness and resistance to solvents. Crosslinking by vulcanization with sulfur, by means of peroxides or metal oxides is likewise possible and improves the desired properties.
- the wing has a hardness which is less than that of the inner peripheral surface. As a result, occur, if at all, the wear on the wing and not on the pump room. It must therefore be replaced if necessary, only the wing.
- the material of the wing contains a filler, in particular the wing is fiber-reinforced.
- the filler may contain glass fiber, carbon fiber, metal, graphite or Kevlar.
- recesses or openings are provided parallel to the wing tip and the wing due to the recesses or the openings in the longitudinal direction is slightly more elastic.
- the wing can adapt to a heat-related expanding pressure chamber, so that the tightness is still guaranteed both in cold and in hot vacuum pumps.
- Figure 1 is a perspective view of a first embodiment of a vacuum pump
- Figure 2 is a perspective view of a first wing
- Figure 3 is a perspective view of a second embodiment of a wing.
- a vacuum pump in which the housing 12 is shown without housing cover.
- the housing 12 has a suction port 14, which opens into an interior 16.
- a generally designated 18 rotor in which a wing 20 is mounted orthogonal to the axis of rotation 22 slidably.
- the wing 20 has a constant length, which is matched to the inner diameter of the housing 12.
- the rotor 18 passes through the housing 12, In particular, a bottom 26 of the interior 18, and protrudes with a non-illustrated portion on the back of the housing 12, over which it is rotated (by means of a drive, not shown) in rotation.
- the inner space 16 is delimited by a substantially circular cylindrical inner peripheral surface 32 against which the tips 34 of the wing 20 rest, which subdivide the inner space into a suction space 54 and a pressure space 56, since the outer peripheral surface 44 of the rotor 18 bears permanently against the inner circumferential surface 32.
- the wing tips 34 have a flattened side 30 and a rounded side 36.
- the flattened side 30 is located on the pressure side, which means that the wing 20 shown in FIG. 1 rotates in the direction of the clockwise direction.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202005020664 | 2005-11-14 | ||
DE200610011913 DE102006011913A1 (de) | 2006-03-09 | 2006-03-09 | Vakuumpumpe |
PCT/EP2006/009212 WO2007054155A1 (de) | 2005-11-14 | 2006-09-22 | Vakuumpumpe |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1948936A1 true EP1948936A1 (de) | 2008-07-30 |
Family
ID=37499702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06792218A Withdrawn EP1948936A1 (de) | 2005-11-14 | 2006-09-22 | Vakuumpumpe |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1948936A1 (de) |
WO (1) | WO2007054155A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104371311A (zh) * | 2014-11-05 | 2015-02-25 | 徐登科 | 一种耐磨耐腐蚀的水环式真空泵 |
CN104564677A (zh) * | 2015-01-30 | 2015-04-29 | 尹积国 | 一种以聚苯基硫醚为基料的耐腐蚀水环式真空泵 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3514237A (en) * | 1968-07-25 | 1970-05-26 | Ingersoll Rand Co | Fluid motion device |
GB1324443A (en) * | 1970-11-23 | 1973-07-25 | British Oxygen Co Ltd | Rotary pumps |
JPS62210275A (ja) | 1986-03-10 | 1987-09-16 | Toray Ind Inc | ベ−ンポンプ |
US5226400A (en) | 1992-10-08 | 1993-07-13 | Microfuels, Inc. | Device for conversion of liquid fuel into fuel vapor and microscopic liquid droplets |
DE10046697A1 (de) | 2000-09-21 | 2002-04-11 | Bosch Gmbh Robert | Flügel aus Kunststoff für eine Flügelzellen-Vakuumpumpe |
DE10307040A1 (de) * | 2003-02-20 | 2004-09-16 | Luk Automobiltechnik Gmbh & Co. Kg | Vakuumpumpe |
DE50300812D1 (de) | 2003-04-24 | 2005-08-25 | Joma Hydromechanic Gmbh | Flügelzellenpumpe |
-
2006
- 2006-09-22 EP EP06792218A patent/EP1948936A1/de not_active Withdrawn
- 2006-09-22 WO PCT/EP2006/009212 patent/WO2007054155A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2007054155A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2007054155A1 (de) | 2007-05-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20080115 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: JOMA-POLYTEC KUNSTSTOFFTECHNIK GMBH |
|
17Q | First examination report despatched |
Effective date: 20100215 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: JOMA-POLYTEC GMBH |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20120403 |