EP1957797B1 - Compresseur à vis pourvu d'une chemise de refroidissement - Google Patents

Compresseur à vis pourvu d'une chemise de refroidissement Download PDF

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Publication number
EP1957797B1
EP1957797B1 EP06754260.5A EP06754260A EP1957797B1 EP 1957797 B1 EP1957797 B1 EP 1957797B1 EP 06754260 A EP06754260 A EP 06754260A EP 1957797 B1 EP1957797 B1 EP 1957797B1
Authority
EP
European Patent Office
Prior art keywords
cooling
housing
rotor housing
screw compressor
wall
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.)
Active
Application number
EP06754260.5A
Other languages
German (de)
English (en)
Other versions
EP1957797A1 (fr
Inventor
Carsten Achtelik
Dieter HÜTTERMANN
Michael Besseling
Norbert Henning
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.)
GHH Rand Schraubenkompressoren GmbH
Original Assignee
GHH Rand Schraubenkompressoren GmbH
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 GHH Rand Schraubenkompressoren GmbH filed Critical GHH Rand Schraubenkompressoren GmbH
Publication of EP1957797A1 publication Critical patent/EP1957797A1/fr
Application granted granted Critical
Publication of EP1957797B1 publication Critical patent/EP1957797B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/084—Toothed wheels
    • 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
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • 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
    • F04C2220/40—Pumps with means for venting areas other than the working chamber, e.g. bearings, gear chambers, shaft seals

Definitions

  • the invention relates to a screw compressor having a rotor housing, in which two screw rotors which mesh with helical ribs and groove are rotatably mounted parallel axis, and with a surrounding the rotor housing at a distance cooling housing which forms a cooling space together with the rotor housing and at least one inlet opening and an outlet opening for a refrigerant flowing through the cooling space.
  • a screw compressor of this kind is z. B. off DE 201 10 360.5 U1 known as part of a two-stage screw compressor.
  • the invention is particularly applicable to a screw compressor which is a gaseous medium such.
  • a gaseous medium such as air, at very high pressures, in the range of 30 to 50 bar, in particular about 40 bar, compressed and which may be in particular the high pressure stage of a two- or multi-stage compressor unit.
  • the compression to very high pressures is associated with a strong heating of the gaseous medium, so that a particularly effective cooling is desirable.
  • the coolant in the cooling space flows around the outer surface of the rotor housing in the circumferential direction over almost 360 °. Furthermore, the coolant is deflected sharply when flowing into the cooling space and before the outflow respectively at the dividing wall connecting the rotor housing to the cooling jacket. It has been found that is achieved here by a very intense cooling effect, especially in the region of the acting like a cooling fin partition.
  • the in FIG. 1 shown screw compressor has a rotor housing 1 shown in section, in which two rotors 3 and 5 are mounted rotatable parallel axis.
  • the axes of rotation of the rotors 3, 5 lie in a common vertical plane, which is also the cutting plane for the representation of the rotor housing 1.
  • Each rotor has a profile section 7 and 9, which has a profile with helically extending ribs or grooves, wherein the ribs and grooves of the two profile sections 7, 9 engage in a non-contact meshing and sealing engagement.
  • At the profile sections 7, 9 close to both sides shaft journals 7a, 7b, 9a, 9b, with the peripheral surface seal assemblies 11, 12 cooperate to seal the rotor in the rotor housing 1.
  • the shaft journals 7a, 7b, 9a, 9b are also rotatably supported by bearings 13, 15 in the rotor housing 1.
  • the in FIG. 1 upper rotor 3 is the main rotor and has at its in FIG. 1 left end of an extension 7c of its shaft journal, which serves to receive a drive gear (not shown), which meshes with a corresponding gear of a drive gear (not shown) to drive the rotor 3 for rotation.
  • a drive gear not shown
  • a corresponding gear of a drive gear not shown
  • screw compressor When operating the in FIG. 1 shown screw compressor is its suction chamber 10, which at the in FIG. 1 left end of the profile sections 7 and 9 formed in the rotor housing 1 and connected to a (not shown) intake, the gas to be compressed, in particular air, supplied.
  • the supplied gas is already precompressed by one or more upstream compressor stages (not shown) to an intermediate pressure, for example to a pressure in the range of 10 to 15 bar, preferably about 12 bar.
  • This precompressed gas is through the profile sections 7, 9 of the two rotors 3, 5 in FIG. 1 conveyed to the right and thereby compressed to a final pressure, which is preferably in the range of 30 to 50 bar, in particular at about 40 bar.
  • the compressed gas leaves the rotor housing 1 at the in FIG. 1 right, pressure-side end of the profile sections 7, 9 through an outlet (not shown).
  • the rotor housing 1 is surrounded by a cooling jacket or cooling housing 21, which is formed predominantly in one piece with the rotor housing 1 and surrounds this at a distance.
  • the cooling housing 21 has large-area openings, which are closed by means of a cover plate 23 and a bottom plate 25, which are fastened by screws.
  • FIG. 2 shows schematically and simplified a cross section approximately along the line II - II of FIG. 1 ,
  • the rotor housing 1 for receiving the (not shown) screw rotors is surrounded by the cooling jacket or cooling housing 21, the side walls 21a, 21b are preferably formed integrally with the rotor housing 1 and which closed at the top and bottom by the top wall 23 and bottom plate 25 is.
  • the cooling housing 21 forms, together with the rotor housing 1, a cooling space 27 which surrounds the rotor housing 1 essentially completely annularly and which is interrupted only at one point by a partition wall 29 connecting the rotor housing 1 to the side wall 21b of the cooling housing 21.
  • the partition wall 29 extends horizontally approximately at half the height between the center axis M1 M2 of the vertically superposed screw rotors.
  • the cooling housing 21 has an inlet opening 31 and an outlet opening 33 for cooling fluid, for. As cooling water or oil on.
  • the inlet opening 31 opens into a vertically upwardly extending inlet channel 35, the upper outlet opening 35 'facing the underside of the partition wall 29 at a distance.
  • Upstream of the outlet opening 33 is a vertical outflow channel 37, the lower inlet opening 37 'of the top of the partition 29 faces with a small distance.
  • the black arrows in FIG. 2 indicate the flow path of the coolant supplied to the inlet port 31. This is perpendicular by the inflow passage 35 directed upward against the underside of the partition wall 29, deflected at this sharply and then flows down and in Fig. 2 in a clockwise direction around the entire circumference of the rotor housing 1 until it impinges on the upper side of the partition wall 29, is deflected sharply upward by the latter and is withdrawn through the outflow channel 37 and the outlet opening 33.
  • a vent opening 41 formed with a small cross-section. Through this vent opening 41 can escape when filling the cooling chamber 27 with coolant air, as in FIG. 2 indicated by the upper dotted arrows, so that the cooling space 27 up to the height of the vent opening 41, ie up to the in FIG. 2 can be filled by the line 43 indicated liquid level, and the volume of the liquid is trapped above the liquid level 43 residual air is very low.
  • a percolation opening 47 of very small cross-section In the inflow channel 35 separating from the cooling chamber 27 wall 45 is formed at the level of the lower boundary of the inlet opening 31, a percolation opening 47 of very small cross-section.
  • cooling liquid can drain through the seepage opening 47 and the inlet opening 31 (as indicated by the lower dotted arrows in FIG FIG. 2 indicated), until the coolant level in the cooling chamber 27 has reached the height of the seepage opening 47, ie, has dropped to the level indicated by the line 49.
  • the remaining amount of cooling liquid remaining upon emptying of the cooling space 27 below the line 49 is therefore very small.
  • FIG. 3 shows further details of the screw compressor referring to the in FIG. 1 shown seal assemblies 11 for sealing the pressure-side shaft journals 7b, 9b of the rotors 3, 5 in the rotor housing 1 relate.
  • the seal assembly 11 consists of a number of lined ring seals 11a, 11b. In the illustrated embodiment, eight ring seals 11a, 11b are arranged one behind the other. In the ring seals 11 a, 11 b may preferably be lip seals, as in itself z. B. off EP 0 993 553 known.
  • the seal assembly 11 is surrounded by a first annular relief space 51 for trapping leakage gas passing through the seals 11a.
  • the relief space 51 may advantageously lie between the first number of five seal rings 11a seen from the rotor profile 7 and the last three, ie outer ring seals 11b.
  • the relief space 51 is connected by a formed in the rotor housing 1 parallel to the rotor axis connecting channel 53 with the suction chamber 10 of the screw compressor.
  • the annular relief chamber 51 is therefore acted upon by the suction pressure prevailing in the suction chamber 10 of the screw compressor.
  • the intake chamber 10 supplied air through the upstream compressor stages already at a pressure of z. B. between 10 and 15 bar, in particular about 12 bar, be compressed, and this is then also the pressure prevailing in the discharge chamber 51.
  • the high end pressure generated by the rotors, z. B. 40 bar, via the seal assembly 11 a, 11 b fall to zero.
  • a second annular discharge chamber 55 is provided, which is connected in a conventional manner with the atmosphere.
  • the task of this second discharge chamber 55 is to keep the oil system serving for lubrication of the bearings 15 and the constant velocity gear 17, 19 pressure-free and to minimize the access of leakage gas through the sealing arrangement 11 to the oil-lubricated regions.
  • the discharge chamber 51 communicates with the suction chamber 10 connecting passage 53 in the rotor housing 1 preferably in the immediate vicinity of the rotor housing 1 to the cooling housing 21 connecting partition 29. Thanks to the intensive cooling of acting like a cooling fin partition 29 by the deflected at her Coolant is also the connecting channel 53, and thus exposed to it in the suction chamber 10 leakage gas, a particularly intense cooling.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Supercharger (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)

Claims (5)

  1. Compresseur à vis avec un carter de rotor (1), dans lequel sont logés de manière rotative deux rotors à vis (3, 5), un carter de refroidissement (21) entourant le carter de rotor à distance, qui constitue, avec le carter de rotor (1), un espace de refroidissement (27) et au moins une ouverture d'entrée (31) et une ouverture de sortie (33) pour produit de refroidissement liquide traversant l'espace de refroidissement,
    caractérisé en ce que l'espace de refroidissement (27) entoure le carter de rotor (1) de manière annulaire essentiellement sur toute sa circonférence et est interrompu uniquement à un endroit par une cloison (29) reliant le carter de rotor (1) avec le carter de refroidissement (21),
    et en ce que, à l'ouverture d'entrée (31), est raccordé un canal d'admission (35) à partir duquel le produit de refroidissement s'écoule dans l'espace de refroidissement (27) dans une direction d'écoulement orientée perpendiculairement contre une surface latérale de la cloison (29) et en ce qu'avant l'ouverture de sortie (33), se trouve un canal d'évacuation (37) qui comprend une ouverture d'admission (37') qui fait face et qui est perpendiculaire à l'autre surface latérale de la cloison (29), de façon à ce que le produit de refroidissement introduit arrive d'abord sur un côté de la cloison (29) et soit dévié au niveau de celle-ci, puis s'écoule autour du carter de rotor sur environ 360° de sa circonférence, puis soit à nouveau dévié de l'autre côté de la cloison (29) et extrait par le canal d'évacuation.
  2. Compresseur à vis selon la revendication 1, caractérisé en ce que la cloison (29) s'étend horizontalement, le produit de refroidissement entrant est orienté par le canal d'admission (35) de manière essentiellement verticale vers le haut contre le côté inférieur de la cloison (29) et, après écoulement autour du carte de rotor (1), sur le côté supérieur de la cloison (29), est dévié à nouveau verticalement vers le canal d'évacuation.
  3. Compresseur à vis selon la revendication 1 et 2, caractérisé en ce que, dans la paroi du canal d'admission (35), à une faible distance de la paroi inférieure (25) du carter de refroidissement (21), se trouve une ouverture de drainage (47) de faible section.
  4. Rotor à vis selon l'une des revendications 1 à 3, caractérisé en ce que, dans la paroi du canal d'évacuation (3, 7), à une faible distance de la paroi supérieure (23) du carter de refroidissement, se trouve une ouverture de ventilation (41) de faible section.
  5. Rotor à vis selon l'une des revendications 1 à 4, caractérisé en ce que, dans la paroi du carter de rotor 1, à proximité de la cloison (29) reliant celui-ci au carter de refroidissement (21), est prévu un canal de liaison (53) qui relie un espace de détente (51), qui comprend un dispositif d'étanchéité (11) étanchéifiant les tourillons (7b, 9b) côté pression des rotors à vis (3, 5) dans le carter de rotor, avec l'espace d'aspiration (10) du compresseur à vis.
EP06754260.5A 2005-12-08 2006-06-09 Compresseur à vis pourvu d'une chemise de refroidissement Active EP1957797B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005058698 2005-12-08
PCT/EP2006/005557 WO2007065485A1 (fr) 2005-12-08 2006-06-09 Compresseur à vis pourvu d'une chemise de refroidissement

Publications (2)

Publication Number Publication Date
EP1957797A1 EP1957797A1 (fr) 2008-08-20
EP1957797B1 true EP1957797B1 (fr) 2016-09-28

Family

ID=36763690

Family Applications (4)

Application Number Title Priority Date Filing Date
EP06762002A Active EP1957798B1 (fr) 2005-12-08 2006-06-09 Compresseur à vis
EP06754260.5A Active EP1957797B1 (fr) 2005-12-08 2006-06-09 Compresseur à vis pourvu d'une chemise de refroidissement
EP06754262A Withdrawn EP1957799A1 (fr) 2005-12-08 2006-06-09 Compresseur à vis
EP06754261.3A Active EP1979618B1 (fr) 2005-12-08 2006-06-09 Groupe de compresseurs à vis à plusieurs étages

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06762002A Active EP1957798B1 (fr) 2005-12-08 2006-06-09 Compresseur à vis

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP06754262A Withdrawn EP1957799A1 (fr) 2005-12-08 2006-06-09 Compresseur à vis
EP06754261.3A Active EP1979618B1 (fr) 2005-12-08 2006-06-09 Groupe de compresseurs à vis à plusieurs étages

Country Status (8)

Country Link
US (4) US7690901B2 (fr)
EP (4) EP1957798B1 (fr)
CN (2) CN101321954B (fr)
AT (1) ATE498071T1 (fr)
DE (1) DE502006008894D1 (fr)
ES (1) ES2359015T3 (fr)
HK (1) HK1127111A1 (fr)
WO (4) WO2007065486A1 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7669586B2 (en) * 2007-05-01 2010-03-02 Gm Global Technology Operations, Inc. Vented gear drive assembly for a supercharger
US20090142212A1 (en) * 2007-12-03 2009-06-04 Paul Xiubao Huang Rotary blower with noise abatement jacket enclosure
CN101498304B (zh) * 2009-03-11 2011-06-15 宁波鲍斯能源装备股份有限公司 一种煤层气双螺杆压缩机组
DE102009019220B4 (de) * 2009-04-30 2013-04-11 Leistritz Pumpen Gmbh Schraubenspindelpumpe
US8339714B2 (en) 2010-10-13 2012-12-25 Olympus Imaging Corp. Zoom lens and imaging apparatus incorporating the same
JP5777379B2 (ja) * 2011-04-05 2015-09-09 株式会社日立産機システム 空気圧縮機
CN102322421B (zh) * 2011-08-29 2014-03-12 骆贻红 车载无油螺杆空气压缩机及其油路自循环冷却方法
CN103527481B (zh) * 2013-10-30 2015-12-16 上海齐耀螺杆机械有限公司 一种螺杆压缩机
US9951761B2 (en) 2014-01-16 2018-04-24 Ingersoll-Rand Company Aerodynamic pressure pulsation dampener
JP6228868B2 (ja) * 2014-03-10 2017-11-08 株式会社神戸製鋼所 スクリュ圧縮機
US9828995B2 (en) 2014-10-23 2017-11-28 Ghh Rand Schraubenkompressoren Gmbh Compressor and oil drain system
US9803639B2 (en) * 2014-12-19 2017-10-31 Ghh-Rand Schraubenkompressoren Gmbh Sectional sealing system for rotary screw compressor
DE102014019117B4 (de) * 2014-12-19 2022-02-24 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Druckluftversorgungseinrichtung für Fahrzeug-Druckluftanlagen mit wenigstens einem Gehäuse aus Kunststoff
EP3308002A4 (fr) * 2015-06-11 2018-12-05 Eaton Corporation Compresseur de suralimentation doté de pignons de synchronisation d'angle d'hélice à pas constant
CN105386972B (zh) * 2015-12-09 2017-05-17 合肥工业大学 一种具有动密封结构的螺杆真空泵
US10718334B2 (en) 2015-12-21 2020-07-21 Ingersoll-Rand Industrial U.S., Inc. Compressor with ribbed cooling jacket
US10451061B2 (en) 2016-05-06 2019-10-22 Ingersoll-Rand Company Compressor having non-contact and contact seals
CN108071586A (zh) * 2016-11-14 2018-05-25 上海汉钟精机股份有限公司 齿型转子组
TWI624596B (zh) * 2017-03-15 2018-05-21 亞台富士精機股份有限公司 可被遠端監控的幫浦機台及幫浦監控系統
EP3382203B1 (fr) 2017-03-30 2024-05-15 Roper Pump Company LLC Pompe à cavité progressive avec gaine de chauffage intégrée
CN108644117A (zh) * 2018-07-25 2018-10-12 宁波鲍斯能源装备股份有限公司 一种三级螺杆传动结构及其螺杆压缩机
CN109139456A (zh) * 2018-09-20 2019-01-04 宁波鲍斯能源装备股份有限公司 一种双级喷水螺杆主机
CN110425133A (zh) * 2019-07-26 2019-11-08 宁波鲍斯能源装备股份有限公司 螺杆涡旋水平式三级压缩机

Family Cites Families (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US562843A (en) * 1896-06-30 morse
US883911A (en) * 1907-07-09 1908-04-07 Harry Pierce Rotary engine.
US2575154A (en) * 1950-12-18 1951-11-13 Hydro Power Inc Rotary pump
US2849988A (en) * 1954-10-26 1958-09-02 Svenska Rotor Maskiner Ab Rotary devices and casing structures therefor
US3138320A (en) * 1959-01-15 1964-06-23 Svenska Roytor Maskiner Aktieb Fluid seal for compressor
DE1147443B (de) * 1960-07-11 1963-04-18 Gewerk Eisenhuette Westfalia Druckluftzahnradmotor
US3184155A (en) 1963-04-17 1965-05-18 Cooper Bessemer Corp Motor compressor unit
US3407996A (en) 1966-06-22 1968-10-29 Atlas Copco Ab Screw compressor units
GB1335025A (en) 1969-12-31 1973-10-24 Howden Godfrey Ltd Method of and apparatus for refrigeration
US4076468A (en) * 1970-07-09 1978-02-28 Svenska Rotor Maskiner Aktiebolag Multi-stage screw compressor interconnected via communication channel in common end plate
US3783710A (en) * 1972-11-16 1974-01-08 Twin Disc Inc Power transmitting drive apparatus
US4068984A (en) * 1974-12-03 1978-01-17 H & H Licensing Corporation Multi-stage screw-compressor with different tooth profiles
US3986801A (en) * 1975-05-06 1976-10-19 Frick Company Screw compressor
GB1570512A (en) * 1976-09-04 1980-07-02 Howden Compressors Ltd Meshing-screw gas-compressing apparatus
JPS5951190A (ja) * 1982-09-17 1984-03-24 Hitachi Ltd オイルフリ−スクリユ−圧縮機の油切り装置
JPS614889A (ja) * 1984-06-20 1986-01-10 Hitachi Ltd 多段式スクリユ−圧縮機
US4643654A (en) * 1985-09-12 1987-02-17 American Standard Inc. Screw rotor profile and method for generating
JP2511870B2 (ja) * 1986-03-20 1996-07-03 株式会社日立製作所 スクリユ−真空ポンプ装置
US4781553A (en) * 1987-07-24 1988-11-01 Kabushiki Kaisha Kobe Seiko Sho Screw vacuum pump with lubricated bearings and a plurality of shaft sealing means
JP2515831B2 (ja) * 1987-12-18 1996-07-10 株式会社日立製作所 スクリユ―真空ポンプ
JP2619468B2 (ja) * 1988-04-06 1997-06-11 株式会社日立製作所 無給油式スクリュー流体機械
US4938672A (en) * 1989-05-19 1990-07-03 Excet Corporation Screw rotor lobe profile for simplified screw rotor machine capacity control
JPH03267593A (ja) * 1990-03-16 1991-11-28 Hitachi Koki Co Ltd ねじ溝真空ポンプ
JPH05231362A (ja) 1992-02-25 1993-09-07 Hitachi Ltd スクリュ流体機械
JPH05231361A (ja) 1992-02-26 1993-09-07 Hitachi Ltd オイルフリースクリュー圧縮機の診断方法およびその装置
JPH0658278A (ja) * 1992-08-05 1994-03-01 Ebara Corp 多段スクリュー式真空ポンプ
JP3254457B2 (ja) * 1992-09-18 2002-02-04 株式会社日立製作所 無給油式スクリュー圧縮機のロータ形成方法およびそのロータを用いた無給油式スクリュー圧縮機
DE4241141A1 (de) 1992-12-07 1994-06-09 Bhs Voith Getriebetechnik Gmbh Verdichteranlage mit einem im Antriebsstrang zwischen einer Antriebseinheit und einem Verdichterbereich der Anlage eingeschalteten Zahnradgetriebe
US6217304B1 (en) * 1995-10-30 2001-04-17 David N. Shaw Multi-rotor helical-screw compressor
JP3493850B2 (ja) 1995-11-22 2004-02-03 石川島播磨重工業株式会社 機械駆動式過給機のシール構造
US5988994A (en) 1997-10-21 1999-11-23 Global Cooling Manufacturing Company Angularly oscillating, variable displacement compressor
JPH11223191A (ja) * 1998-02-04 1999-08-17 Hitachi Ltd 多段スクリューコンプレッサ
DE29807796U1 (de) 1998-04-30 1999-09-09 Ghh Rand Schraubenkompressoren Dichtungsanordnung für einen Wellenzapfen eines trockenlaufenden Rotationsschraubenverdichters
DE19822283A1 (de) 1998-05-18 1999-11-25 Sgi Prozess Technik Gmbh Drehzahnverdichter und Verfahren zum Betrieb eines solchen
DE29904409U1 (de) * 1999-03-10 2000-07-20 Ghh Rand Schraubenkompressoren Schraubenkompressor
DE29922878U1 (de) 1999-12-28 2001-05-10 Ghh Rand Schraubenkompressoren Zweistufiger trockenlaufender Schraubenkompressor
JP4003378B2 (ja) * 2000-06-30 2007-11-07 株式会社日立プラントテクノロジー スクリュー圧縮機
US6478560B1 (en) * 2000-07-14 2002-11-12 Ingersoll-Rand Company Parallel module rotary screw compressor and method
DE10040020A1 (de) * 2000-08-16 2002-03-07 Bitzer Kuehlmaschinenbau Gmbh Schraubenverdichter
DE20110360U1 (de) * 2001-06-22 2002-10-31 Ghh Rand Schraubenkompressoren Zweistufiger Schraubenkompressor
CN1399074A (zh) * 2001-07-27 2003-02-26 大晃机械工业株式会社 干式真空泵
US6981855B2 (en) * 2002-09-30 2006-01-03 Sandvik Ab Drilling rig having a compact compressor/pump assembly
DE20302989U1 (de) * 2003-02-24 2004-07-08 Werner Rietschle Gmbh + Co. Kg Drehkolbenpumpe
JP2006520873A (ja) 2003-03-19 2006-09-14 株式会社荏原製作所 容積型真空ポンプ
US7232297B2 (en) * 2003-05-08 2007-06-19 Automotive Motion Technology Limited Screw pump
US20050089414A1 (en) * 2003-10-28 2005-04-28 Svenska Rotor Maskiner Ab Screw rotor and screw rotor compressor
CN2688936Y (zh) * 2004-03-15 2005-03-30 朱祚睿 同轴梯型多节螺杆式空气压缩机
US8342829B2 (en) * 2005-12-08 2013-01-01 Ghh Rand Schraubenkompressoren Gmbh Three-stage screw compressor

Also Published As

Publication number Publication date
EP1979618A1 (fr) 2008-10-15
CN101321954A (zh) 2008-12-10
US7690901B2 (en) 2010-04-06
CN101321954B (zh) 2012-06-13
WO2007065485A1 (fr) 2007-06-14
EP1979618B1 (fr) 2016-04-27
US9091268B2 (en) 2015-07-28
EP1957799A1 (fr) 2008-08-20
WO2007065487A1 (fr) 2007-06-14
US7713039B2 (en) 2010-05-11
US20130011285A1 (en) 2013-01-10
ES2359015T3 (es) 2011-05-17
WO2007065486A1 (fr) 2007-06-14
EP1957798A1 (fr) 2008-08-20
HK1127111A1 (en) 2009-09-18
DE502006008894D1 (de) 2011-03-24
ATE498071T1 (de) 2011-02-15
US20080286138A1 (en) 2008-11-20
US20080286129A1 (en) 2008-11-20
EP1957798B1 (fr) 2011-02-09
US20090004036A1 (en) 2009-01-01
EP1957797A1 (fr) 2008-08-20
CN101321955A (zh) 2008-12-10
WO2007065484A1 (fr) 2007-06-14

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