EP0789815B1 - Reibungsvakuumpumpe mit kühlung - Google Patents
Reibungsvakuumpumpe mit kühlung Download PDFInfo
- Publication number
- EP0789815B1 EP0789815B1 EP95929813A EP95929813A EP0789815B1 EP 0789815 B1 EP0789815 B1 EP 0789815B1 EP 95929813 A EP95929813 A EP 95929813A EP 95929813 A EP95929813 A EP 95929813A EP 0789815 B1 EP0789815 B1 EP 0789815B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump according
- housing
- pump
- drive motor
- situated
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
- F04D17/168—Pumps specially adapted to produce a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
Definitions
- the invention relates to a single-flow friction vacuum pump with a housing in which axially one behind the other an inlet, the pump active areas as well a drive motor are arranged and in which a fan is integrated.
- the present invention is based on the object a friction vacuum pump of the type mentioned equipped with improved air cooling.
- this object is achieved by the characterizing Features of claim 1 solved.
- the fan is axially laterally from the drive motor is, the disadvantages described do not exist more.
- the cooling effect is more even.
- the rotor side, due to the resulting heat of compression endangered bearings are adequately cooled.
- the built-in fan is expediently operated in such a way that it is controlled by a temperature sensor.
- the The pump is then constantly facing an undesirable temperature increase protected.
- FIGS. 1 to 6 are the pump itself with 1, its inlet with 2 and their outlet designated 3.
- the housing of the pump 1 includes the two sections 4 and 5.
- the housing section 4 surrounds the stator 6 and the rotor 7 the friction pump.
- Figures 1 and 4 show that components the friction pump turbomolecular pump stages 8 and Siegbahn pump stages are 9.
- the housing section 5 surrounds the drive motor 11, the Stator with 12 and the rotor is designated 13. Of the Housing section 5 is part of a chassis' 14 with the Interior 15, in which the drive motor 11 and others Components. Otherwise, the chassis is 14 carriers all other components of the pump 1. On the inlet 2 opposite end face is the interior 15 with the Disc 16 covered.
- the shaft 17 which carries the rotor 7 is also in the chassis 14 stored, in such a way that the rotor 13 of the drive motor 11 is located between their bearings 18 and 19.
- the rotor 13 is located within a space 20 which is formed by the chassis 14 and by a can 21. This space 20 is gas-tight to the outside. This runs the Rotor 13 of the drive motor 11 in a vacuum while the Motor stator 12 is located outside the vacuum. So that is no gas-tight bushing required.
- the spring 22 which serves to generate the camp staff. She is the one assigned drive-side end of the shaft 17 and as conical spiral spring. Compared to the otherwise Disc springs used in this area have a conical designed spiral spring a much flatter characteristic, so that it is essentially independent of tolerances constant pitch force is ensured. Across from cylindrical coil springs has a conical shape Coil spring has the advantage that its axial length is smaller.
- the exterior of the entire pump 1 is essentially conical designed.
- the cross section of their housing or their housing sections 4, 5 widens from inlet 2 to the drive side there. This measure allows an axially short construction, because there is enough space on the drive side stands around several of the components arranged there side by side to be able to order.
- a fan 23 is located in the interior 15 of the chassis 14 a fan 23. It is on the side next to the drive motor 11 arranged and can either be in continuous operation or controlled by a temperature sensor, not shown become. Adequate cooling of the pump, in particular of their drive motor 11 is thereby ensured.
- FIGS. 1 to 3 extends the plane generating the pad 24 parallel to the shaft 17 of the pump 1.
- a flat surface 27 is provided with an opening 28.
- This opening 28 equipped with a grating 29 serves as Suction opening for the fan 23 arranged next to it Cooled air drawn in again passes through openings 31 and 32 after it flows around the drive motor 11.
- the Openings 31 are in the interior 15 of the Chassis' 14 covering disk 16.
- the openings 32 open into a groove 33, which is located between the housing sections 4 and 5 is located.
- FIGS. 4 to 6 forms the pad 24 generating plane with the Shaft 17 an angle, such that the pad 24 compared to the pad 24 in the embodiment according to Figures 1 to 3 is larger.
- the fans 23 assigned Suction openings 34 and 35 also in the disk 16 and in the groove 33.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Description
Claims (14)
- Einflutige Reibungsvakuumpumpe (1) mit einem Gehäuse (4, 5), in dem axial hintereinander ein Einlaß (2), die pumpaktiven Flächen (8, 9) sowie ein Antriebsmotor (11) angeordnet sind und in dem ein Lüfter (23) ingetriert ist, dadurch gekennzeichnet, daß der Lüfter (23), in axialer Richtung des Antriebsmotors gesehen, seitlich neben dem Antriebsmotor (11) angeordnet ist und daß die Gehäusewandung mit Luftansaug- und Luftaustrittsöffnungen ausgerüstet ist.
- Pumpe nach Anspruch 1, dadurch gekennzeichnet, daß ihr Gehäuse (4, 5) zweiteilig ausgebildet ist, daß der Gehäuseabschnitt (4) einen Stator (6) und einen Rotor (7) umgibt und daß der Gehäuseabschnitt (5) den Antriebsmotor (11) umgibt.
- Pumpe nach Anspruch 2, dadurch gekennzeichnet, daß der Gehäuseabschnitt (5) Bestandteil eines Chassis' (14) mit dem Innenraum (15) ist, in welchem sich der Antriebsmotor (11) befindet, und daß die offene Stirnseite des Innenraums (15) mit einer Scheibe (16) abgedeckt ist.
- Pumpe nach Anspruch 3, dadurch gekennzeichnet, daß die Scheibe (16) mit Lufteintrittsöffnungen (35) und Luftaustrittsöffnungen (31) ausgerüstet ist.
- Pumpe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß Lufteintrittsöffnungen (34) und Luftaustrittsöffnungen (32) in einer im Gehäuse der Pumpe (1) umlaufenden Nut (33) münden.
- Pumpe nach Anspruch 1 und 5, dadurch gekennzeichnet, daß sich die Nut (33) zwischen den beiden Gehäuseabschnitten (4, 5) befindet.
- Pumpe nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß im Chassis (14) die den Rotor (7) tragende Welle (17) gelagert ist, und zwar derart, daß sich der Rotor (13) des Antriebsmotors (11) zwischen ihren Lagern (18, 19) befindet.
- Pumpe nach Anspruch 7, dadurch gekennzeichnet, daß das Chassis (14) und ein Spaltrohr (21) einen gasdichten Raum (20) bilden, in welchem sich der Motorstator (12) befindet.
- Pumpe nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß eine der antriebsseitigen Stirnseite der Welle (17) zugeordnete, konische Spiralfeder (22) der Erzeugung der Lageranstellkräfte dient.
- Pumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ihr Gehäuse derart gestaltet ist, daß es sich im wesentlichen konisch vom Einlaß (2) zur Antriebsseite hin erweitert.
- Pumpe nach Anspruch 2 und Anspruch 10, dadurch gekennzeichnet, daß der Gehäuseabschnitt (5) mit einer ebenen Anschlußfläche (24) ausgerüstet ist, auf der sich ein Vorvakuumanschluß (3), ein Stecker (25) für einen Frequenzwandler und/oder ein Belüftungsanschluß (26) befinden.
- Pumpe nach Anspruch 11, dadurch gekennzeichnet, daß sich die Anschlußfläche (24) parallel zur Welle (17) erstreckt.
- Pumpe nach Anspruch 11, dadurch gekennzeichnet, daß die Anschlußfläche (24) mit der Welle (17) einen Winkel bildet, und zwar derart, daß die Anschlußfläche (24) vergrößert und von mehreren Seiten zugänglich ist.
- Pumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zur Steuerung des im Pumpengehäuse integrierten Lüfters (23) ein Temperaturfühler vorgesehen ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4438812 | 1994-10-31 | ||
DE4438812A DE4438812A1 (de) | 1994-10-31 | 1994-10-31 | Reibungsvakuumpumpe mit Kühlung |
PCT/EP1995/003140 WO1996013667A1 (de) | 1994-10-31 | 1995-08-08 | Reibungsvakuumpumpe mit kühlung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0789815A1 EP0789815A1 (de) | 1997-08-20 |
EP0789815B1 true EP0789815B1 (de) | 1999-03-10 |
Family
ID=6532098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95929813A Expired - Lifetime EP0789815B1 (de) | 1994-10-31 | 1995-08-08 | Reibungsvakuumpumpe mit kühlung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0789815B1 (de) |
JP (1) | JPH10507806A (de) |
DE (2) | DE4438812A1 (de) |
WO (1) | WO1996013667A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19937392A1 (de) | 1999-08-07 | 2001-02-08 | Leybold Vakuum Gmbh | Reibungsvakuumpumpe mit pumpaktiven Elementen |
JP2002276587A (ja) | 2001-03-19 | 2002-09-25 | Boc Edwards Technologies Ltd | ターボ分子ポンプ |
DE10113329A1 (de) * | 2001-03-20 | 2002-09-26 | Leybold Vakuum Gmbh | Turbomolekularpumpe |
DE102013203421A1 (de) * | 2013-02-28 | 2014-08-28 | Pfeiffer Vacuum Gmbh | Vakuumpumpe |
JP6912196B2 (ja) | 2016-12-28 | 2021-08-04 | エドワーズ株式会社 | 真空ポンプ及び該真空ポンプに適用されるコネクタ、制御装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE605902C (de) * | 1932-01-08 | 1934-11-20 | Hugo Seemann Dr | Turbohochvakuumpumpe |
CH291846A (de) * | 1950-04-12 | 1953-07-15 | Philips Nv | Hochvakuummolekularpumpe. |
US2726807A (en) * | 1950-09-28 | 1955-12-13 | Finnell System Inc | Vacuum apparatus for water and dirt removal |
DE1025557B (de) * | 1952-08-27 | 1958-03-06 | Ernst Huerner | Elektrisch angetriebener Axialluefter aus saeurefestem Kunststoff mit in den Lueftereingebautem Elektromotor, insbesondere zur Foerderung saeurehaltiger Medien |
WO1989006319A1 (en) * | 1987-12-25 | 1989-07-13 | Sholokhov Valery B | Molecular vacuum pump |
JP2741863B2 (ja) * | 1988-04-15 | 1998-04-22 | 株式会社日立製作所 | ターボ真空ポンプ |
JP2928615B2 (ja) * | 1990-09-28 | 1999-08-03 | 株式会社日立製作所 | ターボ真空ポンプ |
-
1994
- 1994-10-31 DE DE4438812A patent/DE4438812A1/de not_active Withdrawn
-
1995
- 1995-08-08 WO PCT/EP1995/003140 patent/WO1996013667A1/de active IP Right Grant
- 1995-08-08 JP JP8514272A patent/JPH10507806A/ja active Pending
- 1995-08-08 EP EP95929813A patent/EP0789815B1/de not_active Expired - Lifetime
- 1995-08-08 DE DE59505320T patent/DE59505320D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0789815A1 (de) | 1997-08-20 |
DE59505320D1 (de) | 1999-04-15 |
DE4438812A1 (de) | 1996-05-02 |
WO1996013667A1 (de) | 1996-05-09 |
JPH10507806A (ja) | 1998-07-28 |
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