EP0842362B1 - Spiralverdichter, insbesondere zum einsatz bei der drucklufterzeugung für schienenfahrzeuge - Google Patents
Spiralverdichter, insbesondere zum einsatz bei der drucklufterzeugung für schienenfahrzeuge Download PDFInfo
- Publication number
- EP0842362B1 EP0842362B1 EP96924755A EP96924755A EP0842362B1 EP 0842362 B1 EP0842362 B1 EP 0842362B1 EP 96924755 A EP96924755 A EP 96924755A EP 96924755 A EP96924755 A EP 96924755A EP 0842362 B1 EP0842362 B1 EP 0842362B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spiral
- pressure
- spirals
- compressor according
- spiral compressor
- 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
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/023—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where both members are moving
-
- 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
- F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
- F01C17/06—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements
Definitions
- the invention relates to a scroll compressor according to the preamble of the claim 1.
- the scroll compressor is constructed with two spirals that run into one another and run into one another for the compression effect relative movement to each other by a mutual displacement of their rotational axes guided in bearings is generated, the Spirals run in one camp.
- Coupling pins which are arranged opposite each other on a spiral and over a connecting ring are coupled together.
- Oil-free scroll compressors are increasingly used in the field of rail vehicles increased attention, especially to the accumulation of oily condensate avoid and to simplify maintenance.
- With so-called one-sided spiral arrangement is in particular the support of such axial forces problematic because very large bearings are required. This problem is exacerbated due to the required oil-free compression, due to which the frictional performance of the bearings only is very difficult to remove.
- compressors with a one-sided spiral arrangement have been made from the reasons mentioned in the rail vehicle area as not usable.
- the object of the invention is preferably one completely oil-free scroll compressor with one-sided scroll arrangement so to design that even with large intake volume flow as well as large Compression ratios an exact relative position of the two spirals is ensured; in particular, to form the compression pockets required relative movement of both spirals not unnecessary, for jamming leading frictional interference can arise.
- the support rollers Due to the forced guidance using the support rollers, a so-called “anti-rotation mechanism” given between the spirals, i.e. this does not prevent that Rotation of the spirals relative to the housing, but a relative rotation of both Spirals to each other. Due to the displacement of the axes of the two shafts of the Spirals perform these orbiting movements towards each other, which are required are created around the suction and compression pockets for generating the compressed air allow.
- the support rollers are thus advantageously as a driver of one Spiral effective against the other spiral, at the same time they mediate as a result the degree of freedom of their rolling movement in the bore the necessary relative movement to form the suction and pressure pockets.
- Figure 1 of the drawing is a sectional view of the scroll compressor according to the Invention.
- Figure 2 is an enlarged sectional view of one of the support rollers within the hole in the pressure ring.
- FIG. 1 of the drawing is a one-sided spiral arrangement Spiral compressor 1 shown.
- This is provided with a housing 3, in which two interlocking spirals run, namely one by means of a shaft 5 driven spiral 7 and a spiral dragged by the spiral 7 9. Die both spirals perform a pure rotational movement; through the purely rotational movements of the spirals do not occur unbalance forces, provided that Spirals are balanced in each case.
- an "anti-rotation mechanism" in the form of a positive guidance which consists of three support rollers 17 carried by the dragged spiral 9, the bores 19 arranged at the same angular distance from one another Print ring 15 run. Accordingly, three are at an angular distance of each Support rollers three arranged at 120 ° to each other at the same angular distance bores 19 arranged with respect to one another. Since the pressure ring 15 with the driven spiral 7 rotates, this takes by means of the walls of the Bores and the support rollers 17 with the spiral 9, i.e.
- one of the support rollers 17 is in an enlarged sectional view the bore 19 shown leading them.
- the bore 19 is shown in the Embodiment designed as a guide ring, such that a steel sleeve 20th is provided for the wear-free support of the support roller.
- the support rollers can absorb thermal expansions without tension wear an elastic plastic sleeve (not shown) on its outer circumference or they can be plastic coated.
- the attachment of the support rollers to the spiral In the exemplary embodiment shown in FIG. 2, 9 is by means of screws 22 provided, which is an exchange of the support rollers in a simple manner enable.
- This device consists of pressure chambers 35, which between the Inside of the pressure ring 15 and one on the back of the spiral 9 attached washer 37 are provided.
- the pressure chambers 35 are the very low volumes, which each between the washer 37 and the facing inner surface of the Print ring 15 exist.
- the size and shape of the pressure chambers is determined by dry-running seals 39, which the pressure chambers to outside air i.e.
- Embodiments are each at the same angular distance of 120 ° to each other Three pressure chambers 35 are provided between the bores 19, which each via holes 43 with compressed air from the compression pockets 45 of the Spirals are supplied.
- the scroll compressor When the scroll compressor is operating, it builds up as a result of that described above Pressure supply of the pressure chambers 35 in this a pressure on which the two Presses spirals facing each other, since the pressure ring 15 with the spiral 7th is connected and the washer 37 in the rear region of the spiral 9 from this is worn, e.g. by radial cooling fins 47 connected to the spiral 9 or by the journals of the support rollers 17, which are at an angular distance enforce each other the washer 37, as in the upper half of the cut Drawing can be seen.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Description
- 1
- Spiralverdichter
- 3
- Gehäuse
- 5
- Welle
- 7
- Spirale
- 9
- Spirale
- 11
- Rotationsachse
- 13
- Rotationsachse
- 15
- Druckkranz
- 17
- Stützrolle
- 19
- Bohrung
- 20
- Stahlbüchse
- 21
- Ansaugkanal
- 22
- Schraube
- 23
- Axialbohrung
- 25
- Druckstutzen
- 27
- Verdichtungsraum
- 29
- Lager
- 31
- Welle
- 33
- Lager
- 35
- Druckkammer
- 37
- Ringscheibe
- 39
- Dichtung
- 40
- Kühllufteintritt
- 41
- Kühlluftaustritt
- 43
- Bohrung
- 45
- Verdichtungstasche
- 47
- Kühlrippen
- 49
- Kühllufteintritt
- 51
- Kühlluftaustritt
- 53
- Kühlrippen
Claims (11)
- Spiralverdichter, insbesondere zum Einsatz bei der Drucklufterzeugung für Schienenfahrzeuge, mit wenigstens zwei in einem Gehäuse angeordneten, ineinanderlaufenden Spiralen, deren für die Verdichtungswirkung erforderliche Relativbewegung zueinander durch eine gegenseitige Versetzung ihrer in Lagern geführten Rotationsachsen erzeugt wird, wobei die Spiralen je in einem Lager laufen, gekennzeichnet durch folgende Merkmale:a) die erste der ineinandergreifenden Spiralen (7) trägt unter axialem Abstand einen mit ihr verbundenen und mit ihr umlaufenden Druckkranz (15);b) zwischen dem Druckkranz (15) und der ersten Spirale (7) ist die zweite Spirale (Spirale 9) angeordnet; undc) von der dem Druckkranz (15) zugewandten Rückseite der zweiten Spirale (Spirale 9) erstrecken sich unter Abstand zueinander drehbar gelagerte Stützrollen (17), welche unter Zwangsführung in in den Druckkranz (15) eingelassenen Bohrungen (19) abrollen.
- Spiralverdichter nach Anspruch 1, dadurch gekennzeichnet, daß drei unter einem Winkelabstand von jeweils 120° zueinander an der Rückseite der zweiten Spirale (9) angeordnete, von dieser sich erstreckende Stützrollen (17) in den Bohrungen (19) des mit der ersten Spirale (7) verbundenen Druckkranzes (15) abrollen.
- Spiralverdichter nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Stützrollen (17) an ihrem Außenumfang eine elastische Kunststoffhülse tragen oder kunststoffbeschichtet sind.
- Spiralverdichter nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Stützrollen (17) jeweils mit einer Schraube (22) gegenüber einem axialen Fortsatz der zweiten Spirale (9) verschraubt sind.
- Spiralverdichter nach Anspruch 1, dadurch gekennzeichnet, daß zum Zwecke der Kompensation der von den Spiralen (7,9) auf die Lager (29,33) ausgeübten Axialkräfte Druckkammern (35) vorgesehen sind, mittels welchen die beiden Spiralen (7,9) gegenseitig abgestützt sind.
- Spiralverdichter nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Druckkammern (35) zwischen der Innenseite des Druckkranzes (15) und einer an dieser anliegenden Ringscheibe (37) gebildet und über Bohrungen (43) von Verdichtungstaschen (45) des Spiralverdichters mit Druckluft gespeist sind.
- Spiralverdichter nach einem der vorangehenden Ansprüche, gekennzeichnet durch folgende Merkmale :a) die Druckkammern (35) sind je durch eine im Druckkranz eingelassene Druckkammerdichtung mit Trockenlaufeigenschaften begrenzt;b) die Ringscheibe (37) überlappt die Druckkammern mit einer der Relativgeschwindigkeit zwischen den beiden Spiralen (7,9) entsprechenden Gleitgeschwindigkeit; undc) die Druckkammern sind über Durchlässe in der Ringscheibe und über die Bohrungen (43) mit den Verdichtungstaschen des Spiralverdichters verbunden.
- Spiralverdichter nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß sich die Ringscheibe (37) an mit der zweiten Spirale verbundenen, radialen Kühlrippen (47) abstützt, derart, daß durch den in den Druckkammern sich aufbauenden Druck als Reaktionskraft gegenüber dem Druckkranz (15) und der Ringscheibe (37) die auf die Lager (29,33) der Spiralen einwirkenden Axialkräfte kompensiert werden.
- Spiralverdichter nach einem der vorangehenden Ansprüche, gekennzeichnet durch drei unter einem Winkelabstand von jeweils 120° zueinander bestehende Druckkammern zwischen der Innenfläche des Druckkranzes (15) und der zugewandten Innenfläche der Ringscheibe (37).
- Spiralverdichter nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Bohrungen (19) jeweils zwischen zwei Druckkammern (35) angeordnet sind.
- Spiralverdichter nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die erste Spirale (7) angetrieben ist und daß die zweite Spirale (9) mittels der Zwangsführung von der ersten Spirale (7) geschleppt ist.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19528071A DE19528071A1 (de) | 1995-07-31 | 1995-07-31 | Spiralverdichter |
| DE19528071 | 1995-07-31 | ||
| PCT/DE1996/001330 WO1997005390A1 (de) | 1995-07-31 | 1996-07-19 | Spiralverdichter, insbesondere zum einsatz bei der drucklufterzeugung für schienenfahrzeuge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0842362A1 EP0842362A1 (de) | 1998-05-20 |
| EP0842362B1 true EP0842362B1 (de) | 2002-11-13 |
Family
ID=7768304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96924755A Expired - Lifetime EP0842362B1 (de) | 1995-07-31 | 1996-07-19 | Spiralverdichter, insbesondere zum einsatz bei der drucklufterzeugung für schienenfahrzeuge |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6062833A (de) |
| EP (1) | EP0842362B1 (de) |
| JP (1) | JPH11509903A (de) |
| DE (2) | DE19528071A1 (de) |
| WO (1) | WO1997005390A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10031142B4 (de) * | 2000-06-27 | 2006-09-07 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Spiralverdichter und Verwendung eines Spiralverdichters |
| DE10031143A1 (de) * | 2000-06-27 | 2002-01-17 | Knorr Bremse Systeme | Spiralverdichter, Verfahren zur Kühlung einer Lageranordnung einer Spirale ines Spiralverdichters und Verwendung des Spiralverdichters |
| DE10031140A1 (de) * | 2000-06-27 | 2002-01-17 | Knorr Bremse Systeme | Spiralverdichter und Verwendung eines Spiralverdichters |
| DE10031141B4 (de) * | 2000-06-27 | 2006-06-29 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Spiralkörper |
| US6368065B1 (en) * | 2000-10-20 | 2002-04-09 | Scroll Technologies | Linear drive scroll compressor assemble |
| US7244113B2 (en) * | 2004-10-07 | 2007-07-17 | Varian, Inc. | Scroll pump with controlled axial thermal expansion |
| US9856866B2 (en) | 2011-01-28 | 2018-01-02 | Wabtec Holding Corp. | Oil-free air compressor for rail vehicles |
| US11306717B2 (en) * | 2017-01-17 | 2022-04-19 | ECOLE POLYTECHNIQUE FéDéRALE DE LAUSANNE | Co-rotational scroll machine |
| CN108515676B (zh) * | 2018-04-28 | 2019-12-03 | 重庆鼎汉机械有限公司 | 一种工件冷却装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3994635A (en) * | 1975-04-21 | 1976-11-30 | Arthur D. Little, Inc. | Scroll member and scroll-type apparatus incorporating the same |
| DE3604235C2 (de) * | 1986-02-11 | 1993-11-25 | Bosch Gmbh Robert | Spiralverdichter |
| JPH01267379A (ja) * | 1988-04-14 | 1989-10-25 | Mitsubishi Electric Corp | スクロール流体機械 |
| EP0354342B1 (de) * | 1988-08-03 | 1994-01-05 | AGINFOR AG für industrielle Forschung | Verdrängermaschine nach dem Spiralprinzip |
| JPH04159477A (ja) * | 1990-10-22 | 1992-06-02 | Sanden Corp | スクロール型流体装置 |
| KR960005543B1 (ko) * | 1991-03-29 | 1996-04-26 | 가부시끼가이샤 히다찌세이사꾸쇼 | 동기 회전형 스크로울 유체 기구 |
| US5178526A (en) * | 1991-12-17 | 1993-01-12 | Carrier Corporation | Coupling mechanism for co-orbiting scroll members |
| EP0579888B1 (de) * | 1992-07-20 | 1996-08-21 | AGINFOR AG für industrielle Forschung | Rotierende Spiralpumpe |
| US5752816A (en) * | 1996-10-10 | 1998-05-19 | Air Squared,Inc. | Scroll fluid displacement apparatus with improved sealing means |
| US5938419A (en) * | 1997-01-17 | 1999-08-17 | Anest Iwata Corporation | Scroll fluid apparatus having an intermediate seal member with a compressed fluid passage therein |
-
1995
- 1995-07-31 DE DE19528071A patent/DE19528071A1/de not_active Withdrawn
-
1996
- 1996-07-19 DE DE59609873T patent/DE59609873D1/de not_active Expired - Fee Related
- 1996-07-19 EP EP96924755A patent/EP0842362B1/de not_active Expired - Lifetime
- 1996-07-19 US US09/000,383 patent/US6062833A/en not_active Expired - Fee Related
- 1996-07-19 JP JP9507090A patent/JPH11509903A/ja active Pending
- 1996-07-19 WO PCT/DE1996/001330 patent/WO1997005390A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE59609873D1 (de) | 2002-12-19 |
| DE19528071A1 (de) | 1997-02-06 |
| WO1997005390A1 (de) | 1997-02-13 |
| US6062833A (en) | 2000-05-16 |
| JPH11509903A (ja) | 1999-08-31 |
| EP0842362A1 (de) | 1998-05-20 |
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