EP1498608B1 - Compresseur comprenant une unité de lubrification par huile - Google Patents

Compresseur comprenant une unité de lubrification par huile Download PDF

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Publication number
EP1498608B1
EP1498608B1 EP04016512A EP04016512A EP1498608B1 EP 1498608 B1 EP1498608 B1 EP 1498608B1 EP 04016512 A EP04016512 A EP 04016512A EP 04016512 A EP04016512 A EP 04016512A EP 1498608 B1 EP1498608 B1 EP 1498608B1
Authority
EP
European Patent Office
Prior art keywords
lubricating oil
compressor
drive shaft
sensor
accordance
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.)
Not-in-force
Application number
EP04016512A
Other languages
German (de)
English (en)
Other versions
EP1498608A1 (fr
Inventor
Helmut Barowsky
Wolfgang Ullrich
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
Priority to SI200430053T priority Critical patent/SI1498608T1/sl
Priority to PL04016512T priority patent/PL1498608T3/pl
Publication of EP1498608A1 publication Critical patent/EP1498608A1/fr
Application granted granted Critical
Publication of EP1498608B1 publication Critical patent/EP1498608B1/fr
Anticipated expiration legal-status Critical
Not-in-force 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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/02—Lubrication
    • F04B39/0207—Lubrication with lubrication control systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/023—Hermetic compressors
    • F04B39/0238—Hermetic compressors with oil distribution channels
    • F04B39/0246—Hermetic compressors with oil distribution channels in the rotating shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/02—Lubrication
    • F04B39/0284—Constructional details, e.g. reservoirs in the casing

Definitions

  • the invention relates to a compressor for gaseous media, in particular refrigerant, comprising a housing, a drive shaft mounted in the housing, at least one arranged in the housing and driven by the drive shaft compressor unit and an oil lubrication device, with which bearings of the drive shaft, are supplied with lubricating oil.
  • Such compressors are known in the art.
  • a compressor with the technical features as defined in the preamble of claim 1 is known from document WO 00 / 65232A. In these, there is always the problem that in case of failure of ⁇ lversörgung the oil lubrication device, the compressor should be stopped.
  • a lubricating oil monitoring device which has a the lubricating oil reservoir associated sensor, and that the sensor is arranged such that it detects the presence of lubricating oil in the lubricating oil reservoir at the level of the inlet Drive shaft detected and shuts off the compressor in lubricating oil shortage.
  • the senor such that it detects a stream of lubricating oil in the lubricating oil channel system.
  • the sensor is particularly simple and reliable if the sensor is designed as a sensor reacting to contact with lubricating oil.
  • Such a contact with lubricating oil-reacting sensor can be formed in various ways.
  • Another advantageous solution provides to form the sensor as a heated thermocouple, which is cooled in contact with lubricating oil, but heats up when there is no longer any contact with the lubricating oil.
  • the senor could only be used if the operationally unstable operating conditions in which the oil lubrication device does not work for a short time no longer occur.
  • Such a lubricating oil monitoring can also be used in a particularly simple manner for monitoring operationally unstable operating states when the lubricating oil monitoring device then detects a lack of lubricating oil when the sensor associated with the lubricating oil reservoir does not detect any lubricating oil for a certain period of time.
  • the specified period of time may be specified as the grace period during which lubrication may briefly be stopped or collapsed, but exceeding the grace period will cause the lubricating oil monitor to shut off the compressor.
  • this can be used to bridge the start-up phase of the compressor, in which initially the lubricating oil reservoir can be empty and the lubricating oil delivery device does not supply sufficient lubricating oil into the lubricating oil reservoir.
  • This phase can be incorporated by setting a certain period during which a lubricating oil deficiency may occur and which must be exceeded to shut down the compressor, so that when the lubricating oil shortage takes less time than the certain period, no shutdown of the compressor occurs.
  • the lubrication can be monitored when the sensor is assigned to the lubricating oil reservoir that this detects a predetermined level of a lubricating oil in the lubricating oil reservoir.
  • the sensor is assigned to the lubricating oil reservoir that this detects a predetermined level of a lubricating oil in the lubricating oil reservoir.
  • the level to be detected by the sensor of the lubricating oil bath is set in the lubricating oil reservoir so that it is above the provided on the drive shaft inlet for lubricating oil, so that at the inlet lubricating oil is always taken free of air or gases.
  • the lubricating oil enters the lubricating oil reservoir substantially free of pressurization in the inlet, so that no measures are necessary to provide pressurized lubricating oil for the lubricating oil passage system available.
  • the lubricating oil channel system is designed such that it promotes lubricating oil from the inlet to the bearings to be supplied with rotating drive shaft due to the centrifugal forces. Thus, it is only sufficient to rotate the drive shaft to lubricate the bearings sufficiently.
  • the lubricating oil reservoir is arranged in the region of a housing wall, to which the drive shaft is adjacent, so that no complex design measures for ensuring the function of the oil lubrication device are required.
  • the inlet of the lubricating oil passage system is arranged on an end side of the drive shaft with which it adjoins the lubricating oil reservoir.
  • the lubricating oil conveying device could be designed as a screw conveyor or any kind of lubricant for conveying oil.
  • a particularly favorable solution provides that the lubricating oil conveying device comprises a blast wheel.
  • Such a blast wheel can be structurally very easy to assemble on the drive shaft and rotates with the drive shaft, wherein the impeller immersed in the oil sump near the bottom of the housing to the oil from the oil sump in areas above the same to hurl, especially on a wall to spin from which the oil can run into the lubricating oil reservoir.
  • An embodiment of a refrigerant compressor according to the invention shown in Fig. 1, comprises a housing 10, which has a motor section 12 and a compressor section 14.
  • the housing 10 extends in the direction of a longitudinal axis 16 and is closed in the region of its motor section 12 with a housing cover 18 and in the region of the compressor section 14 with a housing cover 20
  • a rotor 34 of a designated as a whole with 36 motor On a extending in the motor section 12 section 32 of the drive shaft 30 is seated a rotor 34 of a designated as a whole with 36 motor and in the motor portion 12 of the housing 10 sits a rotor surrounding the stator 38 of the motor 36, so that the rotor 34 directly Drive shaft 30 drives.
  • the drive shaft 30 with its extending in the compressor section 14 section 40 drive elements 42, for example, formed in the form of eccentrics, on which connecting rods 44 sit.
  • the storage of the drive shaft in the housing 10 on the one hand by a seated between the motor section 12 and the compressor section 14 to the housing 10th formed bearing body 46, which supports the drive shaft 30 in the region of a central portion 48 which is located between extending in the motor portion 12 portion 32 of the drive shaft 30 and extending in the compressor section 14 portion 40 of the drive shaft 30.
  • bearing of the drive shaft 30 in a further end of the drive shaft 30 arranged bearing body 50, which is integrally formed on the compressor portion 14 closing housing cover 20 and the housing cover 20 facing end portion 52 of the drive shaft.
  • the drive shaft 30 is provided with a designated as a whole with 60 lubricating oil passage system which a In the axial direction of the drive shaft 30 extending central lubricating oil channel 62 and branching off this branch channels 64 includes, for example, branch channels 64 for lubricating the bearing body 46 rotating central portion 48 of the drive shaft 30, a branch channel 66 for lubricating the rotating in the bearing body 50 end portion 52nd the drive shaft 30 and branch channels 68 for lubricating the seated on the drive elements 42 connecting rod 44th
  • All of these branch channels 64 to 68 have outlet openings 70 located radially opposite the central lubricant channel 62, so that when the drive shaft 30 rotates, lubricating oil present in the lubricating oil channel system 60 flows in the direction of the outlet openings 70.
  • the end face 74 of the drive shaft 30 is preferably located on a side facing the housing cover 20 side of the bearing body 50 mounted end portion 52 of the drive shaft 30 and adjacent to a lubricating oil reservoir 80, which, as shown enlarged in Fig.
  • the lubricating oil reservoir 80 is filled so far that an oil surface 84 of an oil bath 86 is above the inlet 72, then sufficient lubricating oil is always available at the inlet 72 to be received by the lubricating oil channel system 60 via the inlet 72 and to the mouth openings when the drive shaft 30 rotates 70 due to the radial acceleration in the drive shaft 30 to be performed.
  • a sensor 90 For monitoring the lubricating oil bath 86 present in the lubricating oil reservoir 80, a sensor 90, which cooperates with a lubricating oil monitoring device 92 which shuts off the engine 36 when there is a lack of lubricating oil, is assigned to the lubricating oil reservoir 80.
  • the senor 90 could, for example, be designed so that it monitors the state of the oil surface 84 without contact.
  • the senor 90 is formed as a sensor which can detect whether it is in contact with lubricating oil or not.
  • Such contact with lubricating oil can be determined, for example, via optical properties, so that the sensor 90 could be an optical sensor.
  • a particularly simple and reliable working embodiment provides that the sensor 90 operates in the form of a heated thermocouple, which is constantly cooled by the contact with lubricating oil and thus does not significantly heat up, but in the absence of contact with lubricating oil heats up strongly and this heating of the Sensor is then detected by the lubricating oil monitoring device 92.
  • the senor 90 is located immediately in front of the inlet 72 of the central lubricating oil passage 62 and would thus detect if no lubricating oil was present in the lubricating oil bath 86 at the level of the inlet 72.
  • the senor 90 can be screwed with a housing 94 in a threaded bore 96 in the cover wall 82 from the outside, wherein the threaded bore 96 opens into the lubricating oil reservoir 80, and is preferably arranged coaxially to the drive shaft 30.
  • the lubricating oil monitor 92 operates to shut off the engine 36 when the sensor 90 is longer than a predetermined period of time, such as a period of time between 60 and 120 seconds, preferably 90 seconds, no longer communicates with lubricating oil of the lubricating oil monitoring device 92.
  • a predetermined period of time such as a period of time between 60 and 120 seconds, preferably 90 seconds.
  • the lubricating oil bath 86 in the lubricating oil reservoir 80 is above a lubricating oil sump 100 formed in the housing 10 near a housing bottom 102, it is necessary to continuously convey lubricating oil from the oil sump 100 into the lubricating oil reservoir 80 by means of a lubricating oil conveying device 104.
  • Such a lubricating oil conveyor 104 is formed, for example, as a seated on the drive shaft 30 and co-rotating with this impeller 106 which dips into the oil sump 100, entraining oil there and throws against a side facing the impeller 106 inside 108 of the housing cover 20, which in a over the lubricating oil reservoir 80 lying upper portion 110 webs 112 which lead the running of the area 110 in the direction of the oil sump 100 lubricating oil into the lubricating oil reservoir 80.
  • the blast wheel 106 is designed so that when co-rotating drive shaft 30, the impeller 106 always promotes sufficient amounts of oil in the lubricating oil reservoir 80 from which this lubricating oil can then be distributed through the lubricating oil channel system 60.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (10)

  1. Compresseur pour fluides gazeux, en particulier réfrigérants, comprenant un boîtier (10),
    un arbre d'entraînement (30) logé dans le boîtier (10),
    au moins une unité de compresseur (22) disposée dans le boîtier (10) et entraînée par l'arbre d'entraînement (30),
    et un dispositif de lubrification par huile, avec lequel des points de palier (48, 52, 42) de l'arbre d'entraînement (30) peuvent être alimentés avec de l'huile lubrifiante, avec un espace de réserve d'huile lubrifiante (80) situé au-dessus d'un bac à huile (100) dans le boîtier (10) et pouvant être rempli avec un dispositif de transport d'huile lubrifiante (104) à partir du bac à huile (100), avec un système de conduit d'huile lubrifiante (60) traversant l'arbre d'entraînement (30), qui reçoit de l'huile lubrifiante sortant de l'espace de réserve d'huile lubrifiante (80) au moyen d'une entrée (72) prévue sur l'arbre d'entraînement (30) et la guide vers les points de palier (48, 52, 42),
    caractérisé en ce que
    un dispositif de contrôle d'huile lubrifiante (92) est prévu, lequel présente un capteur (90) attribué à l'espace de réserve d'huile lubrifiante (80), en ce que le capteur (90) est disposé de telle sorte qu'il détecte la présence d'huile lubrifiante dans l'espace de réserve d'huile lubrifiante (80) à la hauteur de l'entrée (72) de l'arbre d'entraînement (30) et en ce que le dispositif de contrôle d'huile lubrifiante (92) déconnecte le compresseur en cas d'absence d'huile lubrifiante.
  2. Compresseur selon la revendication 1, caractérisé en ce que le capteur (90) est conçu comme un capteur réagissant au contact avec de l'huile lubrifiante.
  3. Compresseur selon la revendication 1 ou 2, caractérisé en ce que le dispositif de contrôle d'huile lubrifiante (92) détecte un manque d'huile lubrifiante lorsque le capteur (90) attribué à l'espace de réserve d'huile lubrifiante (80) ne constate pas la présence d'huile lubrifiante au-delà d'une période prédéfinie.
  4. Compresseur selon l'une quelconque des revendications précédentes, caractérisé en ce que le capteur (90) est attribué à l'espace de réserve d'huile lubrifiante (80) de telle sorte que celui-ci détecte un niveau de remplissage défini d'un bain d'huile lubrifiante (86) dans l'espace de réserve d'huile lubrifiante (80).
  5. Compresseur selon la revendication 4, caractérisé en ce que le niveau de remplissage, à détecter par le capteur (90), du bain d'huile lubrifiante (86) dans l'espace de réserve d'huile lubrifiante (80) est défini de telle sorte que celui-ci se trouve au-dessus de l'entrée (72) prévue sur l'arbre d'entraînement (30) pour l'huile lubrifiante.
  6. Compresseur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'huile lubrifiante dans l'espace de réserve d'huile lubrifiante (80) entre dans l'admission (72) largement débarrassée d'une alimentation en pression.
  7. Compresseur selon l'une quelconque des revendications précédentes, caractérisé en ce que le système de conduit d'huile lubrifiante (60) est réalisé de telle sorte que celui-ci transporte de l'huile lubrifiante de l'entrée (72) aux points de palier (48, 52, 42) à alimenter sous l'effet des forces centrifuges en cas de rotation de l'arbre d'entraînement (30).
  8. Compresseur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'espace de réserve d'huile lubrifiante (80) est disposé dans la zone d'une paroi de boîtier (82) qui est contiguë à l'arbre d'entraînement (30).
  9. Compresseur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entrée (72) du système de conduit d'huile lubrifiante (60) est disposée sur un côté avant (74) de l'arbre d'entraînement (30), avec lequel celui-ci est contigu à l'espace de réserve d'huile lubrifiante (80).
  10. Compresseur selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de transport d'huile lubrifiante (104) comprend une roue de projection (106).
EP04016512A 2003-07-16 2004-07-14 Compresseur comprenant une unité de lubrification par huile Not-in-force EP1498608B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200430053T SI1498608T1 (sl) 2003-07-16 2004-07-14 Kompresor z napravo za mazanje z oljem
PL04016512T PL1498608T3 (pl) 2003-07-16 2004-07-14 Sprężarka z urządzeniem do smarowania olejem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10333402A DE10333402A1 (de) 2003-07-16 2003-07-16 Kompressor
DE10333402 2003-07-16

Publications (2)

Publication Number Publication Date
EP1498608A1 EP1498608A1 (fr) 2005-01-19
EP1498608B1 true EP1498608B1 (fr) 2006-06-07

Family

ID=33462009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04016512A Not-in-force EP1498608B1 (fr) 2003-07-16 2004-07-14 Compresseur comprenant une unité de lubrification par huile

Country Status (10)

Country Link
US (1) US7331766B2 (fr)
EP (1) EP1498608B1 (fr)
CN (1) CN100379987C (fr)
AT (1) ATE329155T1 (fr)
DE (2) DE10333402A1 (fr)
DK (1) DK1498608T3 (fr)
ES (1) ES2265130T3 (fr)
PL (1) PL1498608T3 (fr)
PT (1) PT1498608E (fr)
SI (1) SI1498608T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016115778A1 (de) 2016-08-25 2018-03-01 Kriwan Industrie-Elektronik Gmbh Verfahren zum Betreiben eines Ölspiegelregulators

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0501446A (pt) * 2005-04-29 2006-12-12 Brasil Compressores Sa método de proteção contra quebra do filme de óleo lubrificante nos mancais de compressores herméticos
DE102006003991B4 (de) * 2006-01-24 2011-02-24 Bitzer Kühlmaschinenbau Gmbh Kompressor
DE102008025327B4 (de) * 2008-05-27 2010-09-09 Danfoss A/S Kältemittelverdichter
EP2713054B1 (fr) * 2011-04-18 2020-12-30 Emerson Climate Technologies (Suzhou) Co., Ltd. Compresseur rotatif et mécanisme de rotation
CN103541905B (zh) * 2012-07-13 2017-06-13 艾默生环境优化技术(苏州)有限公司 压缩机
DE102013203268A1 (de) * 2013-02-27 2014-08-28 Bitzer Kühlmaschinenbau Gmbh Kältemittelverdichteranlage
JP5652497B2 (ja) * 2013-03-29 2015-01-14 ダイキン工業株式会社 圧縮機
CN106801665A (zh) * 2016-12-27 2017-06-06 大连葆光节能空调设备厂 一种在压缩机运行时补充压缩机油的装置和使用方法

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US2137220A (en) 1936-02-11 1938-11-22 Westinghouse Air Brake Co Compressor lubricator
US2878990A (en) 1953-10-30 1959-03-24 Sulzer Ag Upright piston compressor
DE1093387B (de) * 1957-12-14 1960-11-24 Linde S Eismaschinen Ag Zweign Schmiervorrichtung fuer Motorverdichter von Kaeltemaschinen kleiner und mittlerer Leistung mittels OElfoerderscheiben
US3411313A (en) * 1966-12-02 1968-11-19 Carrier Corp Compressor protective control
US3426962A (en) * 1966-12-02 1969-02-11 Carrier Corp Overtemperature and lubricant loss protector for compressors
US5257539A (en) * 1992-05-21 1993-11-02 Gale Danny E Electronic oil level indicator
US5765994A (en) * 1995-07-14 1998-06-16 Barbier; William J. Low oil detector with automatic reset
DE19603110A1 (de) * 1995-11-06 1997-05-07 Bitzer Kuehlmaschinenbau Gmbh Kompressor
US5884494A (en) * 1997-09-05 1999-03-23 American Standard Inc. Oil flow protection scheme
DE19918161A1 (de) 1999-04-22 2000-11-02 Bitzer Kuehlmaschinenbau Gmbh Kältemittelverdichteranlage
US6276901B1 (en) * 1999-12-13 2001-08-21 Tecumseh Products Company Combination sight glass and sump oil level sensor for a hermetic compressor
CN1165721C (zh) * 2000-01-21 2004-09-08 东芝开利株式会社 油量检测器、制冷设备和空调器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016115778A1 (de) 2016-08-25 2018-03-01 Kriwan Industrie-Elektronik Gmbh Verfahren zum Betreiben eines Ölspiegelregulators
US10767640B2 (en) 2016-08-25 2020-09-08 Kriwan Industrie-Elektronik Gmbh Method for operating an oil level regulator

Also Published As

Publication number Publication date
ES2265130T3 (es) 2007-02-01
PL1498608T3 (pl) 2006-09-29
DE10333402A1 (de) 2005-02-10
ATE329155T1 (de) 2006-06-15
PT1498608E (pt) 2006-08-31
DE502004000688D1 (de) 2006-07-20
EP1498608A1 (fr) 2005-01-19
CN100379987C (zh) 2008-04-09
DK1498608T3 (da) 2006-10-09
CN1576582A (zh) 2005-02-09
US7331766B2 (en) 2008-02-19
SI1498608T1 (sl) 2006-10-31
US20050011704A1 (en) 2005-01-20

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