EP1498611A1 - Compresseur à vis - Google Patents

Compresseur à vis Download PDF

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Publication number
EP1498611A1
EP1498611A1 EP04012535A EP04012535A EP1498611A1 EP 1498611 A1 EP1498611 A1 EP 1498611A1 EP 04012535 A EP04012535 A EP 04012535A EP 04012535 A EP04012535 A EP 04012535A EP 1498611 A1 EP1498611 A1 EP 1498611A1
Authority
EP
European Patent Office
Prior art keywords
screw compressor
compressor according
spool
screw
displacement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04012535A
Other languages
German (de)
English (en)
Inventor
Rolf Dieterich
Klaus Feller
Pascal Papadopoulos
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 EP1498611A1 publication Critical patent/EP1498611A1/fr
Withdrawn legal-status Critical Current

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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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
    • F04C28/125—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves with sliding valves controlled by the use of fluid other than the working 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
    • 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
    • F04C23/008—Hermetic pumps

Definitions

  • the invention relates to a screw compressor for gaseous media, in particular Refrigerant comprising a compressor housing, two in the compressor housing arranged in screw holes, for compacting the medium cooperating and rotating drivable screw rotor and one adjacent to the screw rotors and in a direction of displacement movable spool to control the compression of the Screw compressor.
  • Such a scannable element provides the ability to control the position of the spool accurately detect in the direction of displacement and thus also exactly to know the set compression of the screw compressor and if necessary to regulate.
  • the scannable element could be an optical or having magnetically scannable internal structure.
  • the scannable element has a scannable outer contour.
  • Such a scannable outer contour could, for example, a tooth-like Be external contour, either optical or inductive or is mechanically scanned.
  • Such a web with a scanning surface could also be non-contact still be scanned.
  • Such a scanning can be very easy to scan, if this runs obliquely to the direction of displacement of the spool.
  • the scanning capability of the scanning is facilitated when the Scanning surface substantially rectilinear, but obliquely to the direction of displacement of the spool runs.
  • the tracker could be arranged guided in a backdrop on one arm and thus be movable on a curved path.
  • a particularly favorable solution provides that the scannable element within the housing in the area of a bearing receptacle of the screw rotor is arranged.
  • the scannable element can be particularly space-saving accommodate.
  • the scannable element could in principle directly on the spool itself, at a connection between the spool and an adjustment for the spool or the adjusting device for the spool be arranged by yourself.
  • a structurally particularly simple solution provides that the scannable Element is arranged on a carrier mounted on the spool.
  • the scannable element in the direction of displacement of the spool extends from this, in particular in Direction opposite to an adjustment of the spool.
  • the carrier on the guide element of the spool when the carrier on the guide element of the spool is arranged, it is advantageous if the carrier is within a cross-sectional area the guide element of the spool is arranged so that as well In this case, the pre-assembly of the carrier on the guide element possible is and this preassembled carrier insertion of the guide element in the not hindered for this intended part of the slide bore.
  • the probe is a displacement sensor, so that can be detected with this immediately consecutive positions.
  • the probe is designed so that it one of the path generated transversely to the direction of displacement of the path follower detected.
  • a control is preferably provided which by means of the probe a position of the spool determined and via control of an adjustment for the spool the position of the spool controls.
  • FIG. 1 An embodiment of a screw compressor according to the invention, shown in Fig. 1 comprises a designated as a whole with 10 housing, which an engine-side section 12, a compressor section 14 and a pressure-side section 16 has.
  • stator 22 fixed in the motor side Section 12 of the housing 10 is seated and its rotor 24 about an axis 26th is rotatably supported within the stator 22.
  • the rotor 24 drives a drive shaft 28, via which a pair cooperating screw rotor 30 are rotationally driven, wherein the A pair of screw rotors 30 in screw rotor bores 32 of a Whole with 34 designated compressor screw housing sitting, in turn is disposed in the compressor section 14 of the housing 10.
  • bearing seats 36 and 38 provided in the outer housing 10, in which of the screw rotors 30th outgoing shaft pieces 40 and 42 by means of rotary bearings 44 and 46 rotatable are stored.
  • the bearing receivers 36 and 38 and the compressor screw housing 34 in one piece to the housing 10 in the region of the compressor section 14 molded.
  • a slide bore 48 is provided, in which a spool 50 in a direction parallel to the axis 26 extending displacement direction 52 is movable, wherein the spool 50 via a coupling rod 54 with an adjusting 56th is coupled, which, for example, a control cylinder 58 and a control piston 60 formed by pressurized media within the Adjusting cylinder 58 is displaceable, so that via the coupling rod 54th coupled spool 50 corresponding to the positions of the actuator piston 60 is also displaceable.
  • the spool 50 has one of an inlet side 62 of the compressor screw housing 64 facing control edge 64 through which Moving towards an outlet 66 of the compressor screw housing 34 controlled compression ratio can be reduced.
  • the control of the adjusting device 56 via a 70 as a whole designated control of the screw compressor, where for an exact Control a position of the spool 50 must be detectable.
  • the spool 50 is associated with a web carrier 72, which is coupled to the spool 50 in the direction of the displacement direction 52 is displaceable and which has a track 74 through a track follower 76 is scanned.
  • the web 74 is preferably provided as on the web support 72 rectilinear scanning surface 78 is formed, which is inclined to the Displacement 52 extends and preferably extends so that at maximum displacement of the spool 50 from the one maximum Compression ratio corresponding position to a minimum Compression ratio corresponding position the track follower 76 in his transverse to the displacement direction 52, preferably approximately perpendicular to this, extending movement direction 80 shifts by a maximum distance, the less than the maximum travel of the spool 50 with the web carrier 72 in the direction of displacement 52nd
  • the track follower 76 through the head of a stylus 82 of a Displacer 84 formed, the path of the track follower 76 in the direction of movement 80 receives and transmits to the controller 70, each individual Position of the track follower 76 in the direction of movement 80 a unique Position of the spool 50 is assigned in the displacement direction 52, so that the respective position of the spool 50 exactly with the encoder 84 can detect.
  • the web support 72 is preferably at one over the control edge 64 in the direction of displacement 52 addition extending guide member 86 of the spool 50, in continuation but within a maximum cross section of the Control slide 50 held so that the web carrier 72 in the direction of Axis 26 seen approximately in the area between the electric motor 20 and the compressor screw housing 34 lying bearing receptacle 36, and indeed in a surrounding inner space 88 of the outer housing 10, which around the bearing receptacle 36 around to the inlet side 62 of the Compressor screw housing 34 and also in the direction of the electric motor 20th extends.
  • the spool 50 By the arrangement of the web carrier 72 within the maximum Cross-sectional shape of the spool 50 and in particular within a Cross-sectional shape of the guide member 86 is the spool 50 with the mounted web support 72 from the side of the outlet 66 in the slide bore 48 inserted and pushed through them to the interior 88.
  • the interior 88 is preferably at the pressure of the inflowing Refrigerant in the region of the inlet side 62nd
  • the displacement sensor 84 is preferably located on an outer side of the compressor section 14 of the housing 10 and passes through the stylus 82 a Housing 10 passing through hole 90 to spring loaded with the track follower 76 to be able to rest on the web 74.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP04012535A 2003-07-16 2004-05-27 Compresseur à vis Withdrawn EP1498611A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10333400 2003-07-16
DE10333400A DE10333400A1 (de) 2003-07-16 2003-07-16 Schraubenverdichter

Publications (1)

Publication Number Publication Date
EP1498611A1 true EP1498611A1 (fr) 2005-01-19

Family

ID=33462008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04012535A Withdrawn EP1498611A1 (fr) 2003-07-16 2004-05-27 Compresseur à vis

Country Status (4)

Country Link
US (1) US20050013702A1 (fr)
EP (1) EP1498611A1 (fr)
CN (1) CN1576588A (fr)
DE (1) DE10333400A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016055412A1 (fr) * 2014-10-08 2016-04-14 Bitzer Kühlmaschinenbau Gmbh Compresseur à vis
WO2017174131A1 (fr) * 2016-04-06 2017-10-12 Bitzer Kühlmaschinenbau Gmbh Unité compresseur et son procédé de fonctionnement
US10941770B2 (en) 2010-07-20 2021-03-09 Trane International Inc. Variable capacity screw compressor and method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102748286A (zh) * 2012-04-11 2012-10-24 无锡市制冷设备厂有限责任公司 一种螺杆压缩机
DE102013020534A1 (de) 2013-12-12 2015-06-18 Gea Refrigeration Germany Gmbh Verdichter
DE102014010534A1 (de) * 2014-07-19 2016-01-21 Gea Refrigeration Germany Gmbh Schraubenverdichter
DE102015006129A1 (de) * 2015-05-09 2016-11-10 Man Diesel & Turbo Se Schraubenmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4536130A (en) * 1984-06-18 1985-08-20 Dunham-Bush, Inc. Simplified unloader indicator for helical screw rotary compressor
US4548549A (en) * 1982-09-10 1985-10-22 Frick Company Micro-processor control of compression ratio at full load in a helical screw rotary compressor responsive to compressor drive motor current
US4610612A (en) * 1985-06-03 1986-09-09 Vilter Manufacturing Corporation Rotary screw gas compressor having dual slide valves
US5257921A (en) * 1992-05-19 1993-11-02 Fes, Inc. Electronic slide valve position indicator
JPH09158867A (ja) * 1995-12-06 1997-06-17 Hitachi Ltd スクリュー圧縮機の容量検知装置
GB2331574A (en) * 1997-11-20 1999-05-26 Gethin Bermingham Sensing device for screw compressor valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351160A (en) * 1980-06-16 1982-09-28 Borg-Warner Corporation Capacity control systems for screw compressor based water chillers
US4609329A (en) * 1985-04-05 1986-09-02 Frick Company Micro-processor control of a movable slide stop and a movable slide valve in a helical screw rotary compressor with an enconomizer inlet port

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548549A (en) * 1982-09-10 1985-10-22 Frick Company Micro-processor control of compression ratio at full load in a helical screw rotary compressor responsive to compressor drive motor current
US4536130A (en) * 1984-06-18 1985-08-20 Dunham-Bush, Inc. Simplified unloader indicator for helical screw rotary compressor
US4610612A (en) * 1985-06-03 1986-09-09 Vilter Manufacturing Corporation Rotary screw gas compressor having dual slide valves
US5257921A (en) * 1992-05-19 1993-11-02 Fes, Inc. Electronic slide valve position indicator
JPH09158867A (ja) * 1995-12-06 1997-06-17 Hitachi Ltd スクリュー圧縮機の容量検知装置
GB2331574A (en) * 1997-11-20 1999-05-26 Gethin Bermingham Sensing device for screw compressor valve

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 10 31 October 1997 (1997-10-31) *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11486396B2 (en) 2010-07-20 2022-11-01 Trane International Inc. Variable capacity screw compressor and method
US10941770B2 (en) 2010-07-20 2021-03-09 Trane International Inc. Variable capacity screw compressor and method
US11022117B2 (en) 2010-07-20 2021-06-01 Trane International Inc. Variable capacity screw compressor and method
US11933301B2 (en) 2010-07-20 2024-03-19 Trane International Inc. Variable capacity screw compressor and method
RU2684053C2 (ru) * 2014-10-08 2019-04-03 Битцер Кюльмашиненбау Гмбх Винтовой компрессор (варианты)
US10794382B2 (en) 2014-10-08 2020-10-06 Bitzer Kuehlmaschinebau GmbH Screw compressor with control slider and detector
WO2016055412A1 (fr) * 2014-10-08 2016-04-14 Bitzer Kühlmaschinenbau Gmbh Compresseur à vis
WO2017174131A1 (fr) * 2016-04-06 2017-10-12 Bitzer Kühlmaschinenbau Gmbh Unité compresseur et son procédé de fonctionnement
CN109072914A (zh) * 2016-04-06 2018-12-21 比泽尔制冷设备有限公司 压缩机单元和用于运行压缩机单元的方法
RU2729967C2 (ru) * 2016-04-06 2020-08-13 Битцер Кюльмашиненбау Гмбх Компрессорный модуль и способ эксплуатации компрессорного модуля
US11460026B2 (en) 2016-04-06 2022-10-04 Bitzer Kuehlmaschinenbau Gmbh Compressor unit and method for operating a compressor unit
EP4245997A3 (fr) * 2016-04-06 2023-12-27 BITZER Kühlmaschinenbau GmbH Unité de compresseur et procédé de fonctionnement d'une unité de compresseur
CN109072914B (zh) * 2016-04-06 2025-02-14 比泽尔制冷设备有限公司 压缩机单元和用于运行压缩机单元的方法

Also Published As

Publication number Publication date
CN1576588A (zh) 2005-02-09
DE10333400A1 (de) 2005-02-10
US20050013702A1 (en) 2005-01-20

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