EP2545280A2 - Systeme de lubrification pour un compresseur à vis - Google Patents

Systeme de lubrification pour un compresseur à vis

Info

Publication number
EP2545280A2
EP2545280A2 EP11707648A EP11707648A EP2545280A2 EP 2545280 A2 EP2545280 A2 EP 2545280A2 EP 11707648 A EP11707648 A EP 11707648A EP 11707648 A EP11707648 A EP 11707648A EP 2545280 A2 EP2545280 A2 EP 2545280A2
Authority
EP
European Patent Office
Prior art keywords
lubricant
screw compressor
supply system
compressor according
load operation
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.)
Granted
Application number
EP11707648A
Other languages
German (de)
English (en)
Other versions
EP2545280B1 (fr
Inventor
Klaus Feller
Roni LÖRCH
Tihomir Mikulic
Julian Pfaffl
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.)
Bitzer Kuehlmaschinenbau GmbH and Co KG
Original Assignee
Bitzer Kuehlmaschinenbau GmbH and Co KG
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 Bitzer Kuehlmaschinenbau GmbH and Co KG filed Critical Bitzer Kuehlmaschinenbau GmbH and Co KG
Publication of EP2545280A2 publication Critical patent/EP2545280A2/fr
Application granted granted Critical
Publication of EP2545280B1 publication Critical patent/EP2545280B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04C18/08—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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0007—Injection of a fluid in the working chamber for sealing, cooling and lubricating
    • F04C29/0014—Injection of a fluid in the working chamber for sealing, cooling and lubricating with control systems for the injection of the fluid
    • 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
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/021—Control systems for the circulation of the lubricant
    • 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
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/028—Means for improving or restricting lubricant flow
    • 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
    • F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid

Definitions

  • the invention relates to a screw compressor comprising a housing, at least one arranged in a compressor housing of the housing screw rotor, a high pressure side arranged lubricant sump, in which lubricant collects, and a lubricant supply means, which from the lubricant sump lubricant the
  • Such screw compressors are known from the prior art, in these a constantly operated lubricant supply means is provided, which is designed so that the circulating in this lubricant ensures a sufficient heat dissipation from the housing of the screw compressor even at maximum load, so that constantly a large amount of lubricant circulates.
  • a lubricant cooling device which cools the circulating lubricant.
  • the invention has for its object to improve a screw compressor of the type described above to the effect that with sufficient lubrication, the amount of circulating lubricant can be kept as low as possible.
  • the lubricant supply means comprises a first lubricant supply system and a second lubricant supply system that the first lubricant supply system during operation of the screw compressor lubricant supplies the at least one screw rotor and that the second lubricant supply system in addition to the at least one screw rotor supplies lubricant and thereby activatable and deactivatable ,
  • the advantage of the solution according to the invention is the fact that the activatable and deactivatable second lubricant supply system the
  • Possibility opens up to adapt the circulating amount of lubricant to the operating state of the screw compressor and thus optimally adapt the amount of lubricant to the respective operating state present.
  • Normal load operation and is operable in a high-load operation and when in normal load operation, the second lubricant supply system is deactivated and activated in high-load operation.
  • a particularly favorable solution provides a compressor control, which detects whether a normal load operation or a high-load operation is present.
  • Such a differentiation between a normal load operation and a high load operation can be done in a variety of ways.
  • the compressor control is capable of, based on the predetermined Threshold between normal load operation and high load operation.
  • Such a threshold value for the load of the screw compressor could be, for example, the absorbed power of a drive for the screw compressor.
  • Alternatively or additionally provides an advantageous solution, that when a high pressure side measured temperature is below a predetermined temperature threshold, the normal load operation and then when the measured temperature is above the temperature threshold, the high load operation is performed.
  • a lubricant delivery pump through which the amount of lubricant flowing through the first lubricant supply system I, can be fixed, the amount of lubricant can vary according to the speed of the screw rotor.
  • a particularly advantageous embodiment of a screw compressor according to the invention provides that the amount of lubricant flowing through the first lubricant supply system is determined by a pressure difference between a pressure in the lubricant sump and a pressure at a supply opening to the at least one screw rotor.
  • Such a solution has the great advantage that on the one hand a lubricant supply pump can be omitted and on the other hand in a simple manner, the amount of lubricant required for lubrication, can be fixed. Moreover, it is also advantageously provided in connection with the second lubricant supply system that the amount of lubricant flowing through the second lubricant supply system is determined by a pressure difference between a pressure in the lubricant sump and a pressure at a feed opening to the at least one screw rotor.
  • the pressure at the respective supply openings results primarily from where the respective screw rotor the supply opening for supplying lubricant is provided for this, ie from where the respective feed opening is located between the high pressure side and the suction side of the screw rotor.
  • an advantageous solution provides that the amount of lubricant guided by the first lubricant supply system can be cooled by a lubricant cooling device, so that heat can be removed from the lubricant quantity circulating in the first lubricant supply system by this lubricant cooling device in a defined manner.
  • a further variant is still that the lubricant cooling means controlled under normal load operation optionally the supply system by the first lubricant flowing lubricant quantity cools.
  • Lubricant supply system guided amount of lubricant through a
  • Lubricant cooling device is coolable.
  • This lubricant cooling device may be identical to the lubricant quantity cooling device of the first lubricant supply system.
  • a particularly favorable solution provides that with the lubricant cooling device, the lubricant quantities of the first and second lubricant supply system can be cooled.
  • a lubricant cooling device which in an active state or in an inactive state and / or in
  • such a lubricant cooling device is designed such that it has a lubricant cooler which can be operated by a controllable bypass line in all possible states from active to inactive state.
  • a particularly advantageous solution provides that a lubricant outlet for supplying lubricant to the lubricant supply systems and lubricant inlets for supplying lubricant to the first lubricant supply system and to the second lubricant supply system are provided on the housing.
  • the lubricant supply systems can be activated separately in a simple manner and optionally control the activation without the need for intervention in the housing.
  • Housing is mountable.
  • the distribution of the lubricant to the lubricant supply systems and the activation, in particular of the second lubricant supply system can be realized in a simple manner by means of a distribution unit provided externally of the housing.
  • the distributor unit can preferably be constructed in such a way that it has connections for an external lubricant cooler, so that the connection of the external lubricant cooler also takes place via the distributor unit.
  • the distributor unit can preferably be designed in such a way that lubricant fed back from the lubricant cooler in the distributor unit can be fed to the first lubricant supply system and the second lubricant supply system. Furthermore, it is preferably provided that a control valve is provided in the distributor unit upstream of the lubricant inlet of the second lubricant supply system.
  • a bypass line lying between the connections for the external lubricant cooler is provided with a control valve, which opens the possibility to activate or deactivate the lubricant cooler or to set intermediate states.
  • FIG. 1 shows a longitudinal section through a first embodiment of a screw compressor according to the invention.
  • Fig. 2 is a schematic representation of an inventive
  • Fig. 3 is a view similar to Fig. 2 of a lubricant supply device in a second embodiment of a screw compressor according to the invention.
  • An in Fig. 1 illustrated embodiment of a screw compressor according to the invention comprises a designated as a whole with 10 housing, which is composed of a central portion 12, a motor-side end portion 14 and a pressure-side end portion 16.
  • a designated as a whole by 20 drive motor is arranged, which is for example designed as an electric motor comprising a held in the end portion 14 stator 22 which encloses a rotor 24, which in turn is arranged on a drive shaft 26.
  • compressor housing In the central portion 12 of the outer housing 10 is a generally designated 30 compressor housing is formed, which has rotor bores 32 and 34, in which screw rotors 36 and 38 are arranged, which are rotatable about mutually parallel axes.
  • the screw rotor 36 sits on the drive shaft 26 passing through it.
  • low-pressure side bearings 42 and 44 and high-pressure side bearings 46 and 48 are provided, which are arranged in corresponding bearing receptacles of the housing 10.
  • the screw rotors 36 and 38 thereby compress medium supplied via a suction chamber 50, which flows out via a high-pressure outlet 52 and passes through, for example, a muffler 54 and a lubricant separator 56, which causes lubricant to be eliminated from the compressed medium, which is located in the pressure-side end section 16 collects in the form of a lubricant sump 58.
  • the lubricant separator and the lubricant sump may also be arranged outside the housing 10, these always lying on the high pressure side.
  • the lubricant is absorbed via a lubricant filter 60 and is for the lubrication of the low-pressure side bearings 42 and 44 and the high-pressure side bearings 46 and 48 and the screw rotors 36 and 38 in the rotor bores 32 and 34 are available.
  • the lubricant flows from the lubricant filter 60 in a lubricant delivery line 62 to a branch 64 via which a first lubricant supply system 70, shown in FIG. 2, which supplies lubricant to supply ports 72 and 74 associated with the rotor bores 32 and 34 and the FIG
  • Screw rotors 36 and 38 in areas 76 and 78 supply lubricant, which lie between suction sides 82 and 84 and high-pressure sides 86 and 88 thereof.
  • first lubricant supply system 70 still lubricant outlets 92 and 94 for lubricating the high-pressure side bearings 46 and 48, for example, the high-pressure side bearings 46 and 48 flowing through the lubricant is collected again and fed via a manifold 96 a, for example, the first screw rotor 32 associated additional supply port 98 is, wherein the supply port 98 between the supply port 72 and the suction side 82 of the screw rotor 32 is located.
  • lubricant supply system 100 Parallel to the first lubricant supply system 70 is a second, in Fig. 2 dotted illustrated, lubricant supply system 100 is provided, wherein both the first lubricant supply system 70 and the second lubricant supply system 100 emanating from one connected to the branch 64 and thus fed from the lubricant delivery line 62 branch 102.
  • the second lubricant supply system 100 supplies lubricant to a feed opening 104 associated, for example, with the screw rotor 34, but it is quite possible to also provide a feed opening in the second lubricant supply system 100 assigned to the first screw rotor 32.
  • a control valve designated as a whole by 110 is provided, which is controllable by a compressor controller 120 and with which the second lubricant supply system 100 is controlled by the compressor controller 120 operable.
  • an activatable and deactivatable lubricant cooling device 130 which comprises a lubricant cooler 136, which is provided by a bypass line 132 with a control valve 134 provided in the bypass line 132 in the active state or in the inactive state or in intermediate states between them is operable.
  • a third lubricant supply system 140 leads to the low-pressure side bearings 42 and 44 to supply them with lubricant.
  • the third lubricant supply system 140 may also branch off from the branch 102 so that it also flows through at least coolable lubricant.
  • the housing 10 is configured to include a lubricant outlet 152 connected to the branch 64, a lubricant inlet 154 for the first lubricant supply system 70, and a lubricant inlet 156 for the second lubricant supply system 100.
  • a manifold unit Connected to the lubricant outlet 152 and the lubricant inlets 154 and 156 is a manifold unit, generally designated 160, in which external connections 162 and 164 for connection of the external
  • Lubricant cooler 136 and the bypass line 132 are provided with the control valve 134 and in which also the branch 102 with a supply line 166 are provided to the lubricant inlet 154 of the first lubricant supply system and with a supply line 168 to the lubricant inlet 156 of the second lubricant supply system 100, wherein in the supply line 168 also the control valve 110 is arranged.
  • the manifold assembly 160 is preferably mounted as an external unit to the housing 10 and adjacent to the lubricant outlet 152 and the lubricant inputs 154 and 156 to connect to the bypass line 132 and the leads 166 and 168.
  • the screw compressor according to the illustrated embodiment now operates as follows.
  • the second lubricant supply system 100 is inactive because the compressor controller 120 closes the control valve 110.
  • the amount of lubricant used in the normal load operation depends on how large the pressure difference between the high-pressure lubricant sump 58 and substantially the supply ports 72 and 74 and 98, as a result of this pressure difference, a promotion of the lubricant substantially.
  • the compressor controller 120 may also open the control valve 134, so that the lubricant cooler 136 is not traversed to a significant extent by the circulating lubricant.
  • the screw compressor according to the invention operates in a high-load operation, that is to say under high load, it is necessary to remove as much heat as possible from the housing 10 in order to stabilize the temperature via the lubricant. For this reason, in high load operation, the control valve 134 is closed, so that the bypass line 132 is locked and the entire lubricant flowing to the branch 102 flows through the lubricant cooler 136.
  • the circulating amount of lubricant is significantly increased, particularly since the supply port 104 is closer to the suction sides 82 and 84 of the screw rotors 32 and 34 than the supply ports 72 and 74, respectively that a higher lubricant-promoting pressure difference in the second lubricant supply system 100 is available.
  • the amount of lubricant flowing through the second lubricant supply system 100 in high load operation is preferably more than 0.5 times the amount of lubricant flowing through the first lubricant supply system 70, preferably it may be
  • Lubricant amount approximately to the extent of the lubricant flowing through the first lubricant supply system 70 amount of lubricant rich, so characterized thereby by the high, the lubricant cooler 130 by flowing amounts of lubricant efficient cooling of the inventive
  • Screw compressor is possible.
  • the compressor controller 120 can detect the high-load operation in various ways. Thus, it is conceivable, for example, to detect the high-load operation due to the electric power received by the drive motor 20 and / or it is possible to provide a high-pressure side temperature sensor 170 or a lubricant temperature sensor, for example arranged in the lubricant sump 58, by means of which an overwriting of a temperature threshold can be determined, which is an indication of a high load operation.
  • FIG. 3 illustrated simplified embodiment of a compressor according to the invention eliminates the Umweg Gustav 132 and the control valve 134, so that the branching 102 flowing lubricant always flows through the lubricant cooler 136 and is cooled in this.
  • the high load operation by connecting the second lubricant supply system 100 leads to a significant increase in the amount of lubricant cooled by the lubricant cooler 136, thereby according to the invention the cooling of the screw compressor in high load operation is improved over the normal load operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

L'invention concerne un compresseur à vis, comprenant un carter, au moins un rotor hélicoïdal, monté dans un boîtier du carter, une cuve de lubrifiant, disposée du côté haute pression, dans laquelle est collecté le lubrifiant, et un dispositif d'acheminement du lubrifiant, qui achemine le lubrifiant depuis la cuve de lubrifiant vers le ou les rotors hélicoïdaux. Ledit compresseur à vis est perfectionné de telle sorte que la quantité de lubrifiant en circulation peut être maintenue aussi faible que possible tout en assurant une lubrification suffisante. A cet effet, le dispositif d'acheminement du lubrifiant comprend un premier système d'acheminement et un deuxième système d'acheminement; en cours de service du compresseur à vis, le premier système d'acheminement amène le lubrifiant vers le ou les rotors hélicoïdaux et le deuxième système d'acheminement amène, en plus, le lubrifiant vers le ou les rotors hélicoïdaux, et peut être activé et désactivé à cet effet.
EP11707648.9A 2010-03-08 2011-03-03 Systeme de lubrification pour un compresseur à vis Active EP2545280B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010002649A DE102010002649A1 (de) 2010-03-08 2010-03-08 Schraubenverdichter
PCT/EP2011/053222 WO2011110475A2 (fr) 2010-03-08 2011-03-03 Compresseur à vis

Publications (2)

Publication Number Publication Date
EP2545280A2 true EP2545280A2 (fr) 2013-01-16
EP2545280B1 EP2545280B1 (fr) 2020-02-26

Family

ID=44502748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11707648.9A Active EP2545280B1 (fr) 2010-03-08 2011-03-03 Systeme de lubrification pour un compresseur à vis

Country Status (5)

Country Link
US (1) US8870555B2 (fr)
EP (1) EP2545280B1 (fr)
CN (1) CN102792027B (fr)
DE (1) DE102010002649A1 (fr)
WO (1) WO2011110475A2 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013106344B4 (de) * 2013-06-18 2015-03-12 Bitzer Kühlmaschinenbau Gmbh Kältemittelverdichter
JP6126512B2 (ja) 2013-10-15 2017-05-10 株式会社神戸製鋼所 圧縮機
DE102013020533A1 (de) * 2013-12-12 2015-07-02 Gea Refrigeration Germany Gmbh Verdichter
CN107002679B (zh) * 2014-12-17 2019-12-13 开利公司 具有油关闭阀的螺杆压缩机和方法
BE1024383B1 (nl) * 2016-02-23 2018-02-12 Atlas Copco Airpower Naamloze Vennootschap Gasexpansie-inrichting en werkwijze voor het expanderen van gas
BE1024462B1 (nl) * 2016-08-01 2018-03-05 Atlas Copco Airpower Naamloze Vennootschap Vloeistofgeïnjecteerd compressor- of expanderelement en werkwijze voor het regelen van de vloeistofinjectie van een compressor- of expanderinrichting
CN106121970A (zh) * 2016-08-16 2016-11-16 萨震压缩机（上海）有限公司 喷油量可调的空压机
US11118585B2 (en) 2017-10-04 2021-09-14 Ingersoll-Rand Industrial U.S., Inc. Screw compressor with oil injection at multiple volume ratios
WO2019083778A1 (fr) * 2017-10-24 2019-05-02 Carrier Corporation Passage d'alimentation en lubrifiant pour fond de compresseur
JP6843033B2 (ja) * 2017-11-09 2021-03-17 株式会社神戸製鋼所 給油式スクリュ圧縮機
JP6775482B2 (ja) * 2017-11-09 2020-10-28 株式会社神戸製鋼所 スクリュ圧縮機
JP6836492B2 (ja) * 2017-11-09 2021-03-03 株式会社神戸製鋼所 液冷式スクリュ圧縮機
TWI651472B (zh) * 2018-02-08 2019-02-21 復盛股份有限公司 具冷卻液噴射設計的壓縮機
US11448220B2 (en) 2019-09-27 2022-09-20 Ingersoll-Rand Industrial U.S., Inc. Airend having a lubricant flow valve and controller
JP7366799B2 (ja) * 2020-02-25 2023-10-23 株式会社日立産機システム 給液式スクリュー圧縮機
JP2025513081A (ja) * 2022-04-13 2025-04-22 アトラス コプコ （ウーシー） コンプレッサー カンパニー リミテッド 圧縮機及び圧縮機を有する追加オイル噴射システム
US12410799B2 (en) 2023-04-05 2025-09-09 Doosan Bobcat North America, Inc. Secondary airflow paths for air compressors

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401338B1 (fr) * 1977-06-17 1980-03-14 Cit Alcatel
SE427493B (sv) 1978-07-11 1983-04-11 Atlas Copco Ab Regleranordning vid vetskeinsprutad kompressor
DE3238241A1 (de) * 1981-12-17 1983-07-21 Gebrüder Sulzer AG, 8401 Winterthur Vorrichtung fuer die oelversorgung eines schraubenkompressors
US6216474B1 (en) * 1999-09-27 2001-04-17 Carrier Corporation Part load performance of variable speed screw compressor
BE1013293A3 (nl) * 2000-02-22 2001-11-06 Atlas Copco Airpower Nv Werkwijze voor het besturen van een compressorinstallatie en aldus bestuurde compressorinstallatie.
BE1014611A3 (nl) * 2002-02-08 2004-01-13 Atlas Copco Airpower Nv Werkwijze voor het besturen van de olieterugvoer in een met olie geinjecteerde schroefcompressor en aldus bestuurde schroefcompressor.
BE1017320A3 (nl) * 2006-09-19 2008-06-03 Atlas Copco Airpower Nv Vloeistofgeinjecteerde compressorinstallatie.
BE1018075A3 (nl) * 2008-03-31 2010-04-06 Atlas Copco Airpower Nv Werkwijze voor het koelen van een vloeistofgeinjecteerd compressorelement en vloeistofgeinjecteerd compressorelement voor het toepassen van zulke werkwijze.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011110475A2 *

Also Published As

Publication number Publication date
DE102010002649A1 (de) 2011-09-08
EP2545280B1 (fr) 2020-02-26
CN102792027B (zh) 2015-05-13
US8870555B2 (en) 2014-10-28
WO2011110475A3 (fr) 2012-07-26
US20130058822A1 (en) 2013-03-07
CN102792027A (zh) 2012-11-21
WO2011110475A2 (fr) 2011-09-15

Similar Documents

Publication Publication Date Title
EP2545280B1 (fr) Systeme de lubrification pour un compresseur à vis
DE112015004113B4 (de) Kompressor mit Ölrückführeinheit
EP2064446B1 (fr) Compresseur comprenant un piston maintenu sous l'effet de la pression d'un gaz
DE102011017433C5 (de) Verfahren zur intelligenten Regelung einer Kompressoranlage mit einer Wärmerückgewinnung
DE102009012398B4 (de) Radialgleitlager und Verfahren für eine Schmiermittelversorgung
EP3011181B1 (fr) Compresseur de liquide de refroidissement
EP2642122B1 (fr) Groupe motopompe
EP1565365A1 (fr) Unite d'entrainement presentant un ralentisseur
WO2023020805A1 (fr) Compresseur à entraînement électrique à étages multiples
EP3388677B1 (fr) Procédé de commande d'un compresseur à vis
EP3397843A1 (fr) Turbine à gaz équipée d'un piston à poussée axiale et d'un palier radial
WO2025124815A1 (fr) Dispositif d'entraînement et véhicule automobile équipé d'un tel dispositif d'entraînement
DE102013219786A1 (de) Hydrauliksystem für eine hydrodynamische Maschine
DE102004060596A1 (de) Schraubenverdichter
EP3596340B1 (fr) Système compresseur avec dispositif de surveillance de la température régulable et/ou commandable
EP3969753B1 (fr) Système d'alimentation hydraulique destiné à un véhicule
EP2330304B1 (fr) Ensemble hydraulique
AT518264B1 (de) Ölversorgungssystem
DE102011109268B4 (de) Hydraulik-Kleinaggregat geringer Förderleistung
DE102008013675B4 (de) Innere Gestaltung des Gehäuses einer Kühlmittelpumpe mit mehreren Auslasskanälen
DE102007051498A1 (de) Kraftstoffzumesseinheit für ein Flugzeugtriebwerk
DE102005036350A1 (de) Kraftfahrzeug-Standklimaanlage
DE102014019805B3 (de) Kompressoranlage zur Komprimierung von Gasen
EP3052350A2 (fr) Système hydraulique pour machine hydrodynamique
EP4375509B1 (fr) Circuit de réfrigérant et compresseur de réfrigérant

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: 20120906

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160525

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

INTC Intention to grant announced (deleted)
17Q First examination report despatched

Effective date: 20160729

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190524

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAL Information related to payment of fee for publishing/printing deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR3

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BITZER KUEHLMASCHINENBAU GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTC Intention to grant announced (deleted)
INTG Intention to grant announced

Effective date: 20191029

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502011016492

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1237950

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200526

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200226

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200626

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200526

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200719

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502011016492

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200303

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200426

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200303

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

26N No opposition filed

Effective date: 20201127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200526

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200526

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1237950

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200303

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200303

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200226

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230517

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20260320

Year of fee payment: 16