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WO2013098126A1 - Compresseur comprenant un élément d'aspiration d'huile - Google Patents

Compresseur comprenant un élément d'aspiration d'huile Download PDF

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Publication number
WO2013098126A1
WO2013098126A1 PCT/EP2012/075970 EP2012075970W WO2013098126A1 WO 2013098126 A1 WO2013098126 A1 WO 2013098126A1 EP 2012075970 W EP2012075970 W EP 2012075970W WO 2013098126 A1 WO2013098126 A1 WO 2013098126A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
oil
oil sucking
feet
sucking member
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.)
Ceased
Application number
PCT/EP2012/075970
Other languages
English (en)
Inventor
Bilgin Hacioglu
Cihan Gunduz
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Priority to EP12812938.4A priority Critical patent/EP2798219A1/fr
Priority to CN201280065364.7A priority patent/CN104169581B/zh
Publication of WO2013098126A1 publication Critical patent/WO2013098126A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/023—Hermetic compressors
    • F04B39/0261—Hermetic compressors with an auxiliary oil pump
    • 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
    • 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
    • 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
    • F04B39/14—Provisions for readily assembling or disassembling

Definitions

  • the present invention relates to a hermetic compressor comprising an oil sucking member, the lubrication efficiency of which is improved.
  • the sliding bearings wherein the crankshaft operates and the other movable members are lubricated with the oil disposed in the compressor casing.
  • lubrication provides friction losses of the movable members to be decreased, abrasion to be prevented and temperature to be decreased by removing the heat on the compressor members.
  • the oil at the base of the casing is sucked to be delivered to the bearings and compressor members that are to be lubricated.
  • the centrifugal force that acts on the oil as a result of the rotation of the crankshaft is utilized for delivering the oil at the base of the casing to the bearings.
  • variable capacity compressors used in refrigerators the refrigeration capacity that changes depending on the operating conditions is provided by changing the compressor rotational speed.
  • a cylindrical oil sucking member having helical oil transportation grooves is disposed at the lower end of the crankshaft immersed into oil.
  • the oil sucking member is disposed at the rotational axis of the crankshaft in a manner concentric with the crankshaft.
  • the oil sucking member disposed so as to extend inside the crankshaft increases the lubrication efficiency of the compressor.
  • the lubrication efficiency decreases as the eccentricity between the axes of the oil sucking member and the crankshaft increases, sufficient oil cannot be delivered to the movable parts such as piston rod-crankpin, piston-cylinder.
  • the oil sucking members are produced integrated with the feet of the body. During the production of this member that directly affects the position of the oil sucking member with respect to the crankshaft, only small tolerances can be allowed. However, problems sometimes occur while centering the oil sucking member just at the middle point of the feet. Consequently, the axial eccentricity between the crankshaft and the oil sucking member increases and this causes decrease in the lubrication efficiency. In case that the oil sucking member touches the inner surface of the crankshaft, the compressor loses power and also the oil sucking member wears out. The particles breaking off the oil sucking member damage the compressor and sometimes even cause it to break down. Moreover, even if the crankshaft and the oil sucking member are properly centered during assembly, vibrations occurring during the operation of the compressor may cause axial eccentricity.
  • a compressor comprising two support brackets located between the diagonal feet of the body and an oil sucking member disposed at a point where the support brackets intersect.
  • a compressor comprising flexible members at the base of the oil sucking member.
  • the oil sucking member can move inside the crankshaft thanks to the structure at the base thereof.
  • the aim of the present invention is the realization of a compressor of which the lubrication performance is improved.
  • the compressor realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises at least one support member that connects the two adjacent feet of the body.
  • a connection rod extends from the support member towards the opening at the base of the crankshaft and the oil sucking member is placed to the free end of the connection rod. Since one end of the connection rod is free, the connection rod serves as a spring during the operation of the compressor and absorbs the vibrations acting on the oil sucking member.
  • connection rod is produced from elastic material.
  • the vibrational movements in the vertical direction are more easily absorbed and the oil sucking member is prevented from touching the crankshaft.
  • the compressor comprises an extension that joins the oil sucking member and the connection rod by one end thereof being mounted to the oil sucking member and the other end to the connection rod.
  • the extension provides a height difference between the members it joins. Accordingly, the oil sucking member is positioned at a lower level with respect to the connection rod. The oil sucking member being closer to the base of the casing increases the lubrication performance thereof.
  • the support member has a stationary portion that is connected to the feet and a movable portion that moves with respect to the stationary part.
  • connection rod is fastened onto the movable portion.
  • the oil sucking member thanks to the movable portion whereto it is connected, withstands the centripetal forces that the crankshaft is subjected to due to the rotational movement and remains concentric with the crankshaft during the movement. This provides the oil sucking member to suck more oil in unit time and to direct it to other movable members.
  • the stationary portion is shaped as a flat rod that connects the two feet.
  • the movable portion is mounted over the stationary portion by means of the slot located at the center thereof.
  • the stationary portion grouped with the movable portion is mounted to the feet.
  • the movable portion moves over the stationary portion and along the stationary portion.
  • the stationary portion comprises two hollow arms that extend from the two feet towards each other so as not to contact with each other.
  • the movable portion comprises a connector and two legs mounted to its two sides. The legs are placed into the arms so as to move backwards and forwards and move the connector whereto they are connected in the direction between the feet. During the movement, while one of the legs enters into an arm, the other leg leaves the other arm.
  • the connection rod is mounted onto the connector and the oil sucking member moves in a direction parallel to the connector.
  • connection rod serving as a bridge between the movable portion and the oil sucking member provides the distance between the support member and the oil sucking member to be changed by shortening and lengthening.
  • the oil sucking member moves in two directions almost perpendicular to each other, thereby the movement accuracy thereof is increased.
  • helical recesses extending along the oil sucking member are arranged on the outer surface of the oil sucking member.
  • the oil moves upwards inside the oil sucking member by moving in these recesses and moves towards the other movable members after leaving the oil sucking member.
  • the occurrence of axial eccentricity between the oil sucking member and the crankshaft is prevented during the operation of the compressor and thus the lubrication process is provided to be performed in an efficient manner.
  • Figure 1 – is the partial view of a compressor.
  • Figure 2 — is the perspective view of the body and the feet.
  • Figure 3 — is the exploded view of the support member, the oil sucking member, the connection rod, the extension and the feet related to an embodiment of the present invention.
  • Figure 4 – is the perspective view of the support member, the oil sucking member, the connection rod, the extension and the feet related to an embodiment of the present invention.
  • Figure 5 — is the perspective view of the support member, the oil sucking member, the connection rod, the extension and the feet related to another embodiment of the present invention.
  • Figure 6 — is the perspective view of the body, the support member, the oil sucking member, the connection rod, the extension, the body and the feet related to another embodiment of the present invention.
  • the compressor (1) comprises a casing (2) wherein the oil lubricating the movable members is placed, a body (3) situated in the casing (2), four feet (4) whereon the body (3) is seated, a motor (6) situated on the body (3), a crankshaft (7) that transmits the movement of the motor (6) to the piston and that has an opening (8) extending from the lower end thereof to the upper end and an oil sucking member (9) that provides the oil to be delivered to the other movable members and that is placed at the lower end of the crankshaft (7) so that one end thereof enters into the opening (8) and the other into the oil at the base of the casing (2) ( Figure 1, Figure 2).
  • the rotor of the motor (6) that has a rotor and a stator starts to rotate and transmits its movement to the crankshaft (7).
  • the oil at the lower portion of the crankshaft (7) is moved and taken into the crankshaft (7) through the opening (8).
  • the oil sucking member (9) that is placed to the crankshaft (7) from the lower end of the crankshaft (7) so that at least some portion thereof hangs downwards from the crankshaft (7) and that is closer to the oil surface than the crankshaft (7) provides the receiving of more oil into the crankshaft (7) and the delivery thereof to the upper points inside the crankshaft (7).
  • the feet (4) form a rectangle so that the projection of the opening (8) is at the center of this rectangle.
  • the compressor (1) of the present invention furthermore comprises a support member (5) that connects the two adjacent feet (4) and a connection rod (16) that is connected to the support member (5) from one end, that extends from the support member (5) towards under the opening (8) and to the other end of which the oil sucking member (9) is placed.
  • a support member (5) that connects the two adjacent feet (4)
  • a connection rod (16) that is connected to the support member (5) from one end, that extends from the support member (5) towards under the opening (8) and to the other end of which the oil sucking member (9) is placed.
  • the oil sucking member (9) sucks more oil in unit time, thereby increasing the lubrication efficiency of the compressor (1).
  • one end of the connection rod (16) whereon the oil sucking member (9) is situated is free, it oscillates in the vertical axis and improves the lubrication efficiency ( Figure 3, Figure 4, Figure 5, Figure 6).
  • connection rod (16) is produced from elastic material.
  • the oil sucking member (9) easily moves in the vertical direction during the operation of the compressor (1) and absorbs the generated vibrations.
  • the compressor (1) comprises an extension (17) that connects the support member (5) and the oil sucking member (9) so that there is a height difference therebetween.
  • the oil sucking member (9) is positioned lower than the support member (5).
  • the oil sucking member (9) is immersed into the oil or gets much closer to the oil surface. This provides the lubrication to be realized in an efficient manner without splashing oil onto the support member (5) and the members there around ( Figure 3, Figure 4, Figure 5, Figure 6).
  • the support member (5) comprises a stationary portion (10, 110) connected to the two feet (4), and a movable portion (11, 111) whereon the oil sucking member (9) is connected and that moves along the line connecting the feet (4) over the stationary portion (10, 110).
  • the movable portion (11, 111) can move in both directions along the line between the two feet (4) ( Figure 3, Figure 4, Figure 5, Figure 6).
  • connection rod (16) is fastened onto the movable portion (11, 111).
  • the oil sucking member (9) connected to the movable portion (11, 111) by means of the connection rod (16) is subjected to the centripetal forces during the rotation of the crankshaft (7) and balances these forces by displacing thanks to the movement of the movable portion (11, 111).
  • the oil sucking member (9) is always concentric with the crankshaft (7) during the rotation of the crankshaft (7), thereby the lubrication performance thereof is prevented from decreasing (Figure 3, Figure 4, Figure 5, Figure 6).
  • the support member (5) comprises a stationary portion (10) that continuously connects the two feet (4) and the movable portion (11) that has a slot (12) located at the centre thereof, providing the movable portion (11) to be slidably mounted onto the stationary portion (10).
  • the stationary portion (10) is mounted to the feet (4) after the movable portion (11) is mounted thereover. After the stationary portion (10) is mounted to the feet (4), the movable portion (11) cannot be detached from the stationary portion (10) and linearly moves over the stationary portion (10) ( Figure 3, Figure 4).
  • the support member (5) comprises the stationary portion (110) that has two hollow arms (13) extending towards each other from the two feet (4) and the movable portion (111) that has a connector (14) and two legs (15) with one end each thereof being fixed to one edge of the connector (14) and the other end each being borne into each of the arms (13) so as to make telescopic movement together with the arms (13).
  • the legs (15) moves backwards and forwards inside the arms (13) and provides the connector (14) to change position between the feet (4).
  • connection rod (16) enables the distance between the support member (5) and the oil sucking member (9) to be changed.
  • the oil sucking member (9) can move in two different directions in the same plane and the oil sucking member (9) is more precisely centered with the crankshaft (7).
  • the connection rod (16) has preferably a telescopic structure ( Figure 5, Figure 6).
  • the oil sucking member (9) gains ease of movement and is provided to be positioned concentrically with the crankshaft (7) during the operation time of the compressor (1).
  • the oil in the casing (2) is more efficiently distributed inside the compressor (1).
  • the oil sucking member (9) is prevented from touching the inner surface of the crankshaft (7), the oil sucking member (9) is prevented from losing its efficiency by being worn out in course of time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

La présente invention porte sur un compresseur (1) qui comprend un carter (2) dans laquelle est placée l'huile qui lubrifie les éléments mobiles, un corps (3) situé dans l'enveloppe (2), quatre pieds (4) sur lesquels le corps (3) est appuyé, un élément support (5) qui relie les deux pieds (4), un moteur (6) situé sur le corps (3), un vilebrequin (7) qui transmet le mouvement du moteur (6) au piston et qui présente une ouverture (8) s'étendant de son extrémité inférieure à son extrémité supérieure, et un élément d'aspiration d'huile (9) qui fournit l'huile qui doit être distribuée aux autres éléments mobiles et qui est placé à l'extrémité inférieure du vilebrequin (7) de telle sorte qu'une de ses extrémités entre dans l'ouverture (8) et que l'autre entre dans l'huile à la base du carter (2), et dans lequel l'efficacité de lubrification est améliorée.
PCT/EP2012/075970 2011-12-27 2012-12-18 Compresseur comprenant un élément d'aspiration d'huile Ceased WO2013098126A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12812938.4A EP2798219A1 (fr) 2011-12-27 2012-12-18 Compresseur comprenant un élément d'aspiration d'huile
CN201280065364.7A CN104169581B (zh) 2011-12-27 2012-12-18 包含油吸入部件的压缩机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201113083 2011-12-27
TRA2011/13083 2011-12-27

Publications (1)

Publication Number Publication Date
WO2013098126A1 true WO2013098126A1 (fr) 2013-07-04

Family

ID=47522531

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/075970 Ceased WO2013098126A1 (fr) 2011-12-27 2012-12-18 Compresseur comprenant un élément d'aspiration d'huile

Country Status (3)

Country Link
EP (1) EP2798219A1 (fr)
CN (1) CN104169581B (fr)
WO (1) WO2013098126A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3502473A1 (fr) * 2017-12-22 2019-06-26 Nidec Global Appliance Germany GmbH Compresseur
CN111043455A (zh) * 2019-12-25 2020-04-21 珠海格力电器股份有限公司 底板组件及包含其的压缩机结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2125645A (en) * 1936-06-11 1938-08-02 Crosley Radio Corp Lubricating enclosed engines
US20020172607A1 (en) * 2001-05-18 2002-11-21 Lg Electronics, Inc. Oil supply apparatus for hermetic compressor
WO2003012297A1 (fr) 2001-07-28 2003-02-13 Lg Electronics Inc. Dispositif d'alimentation en huile destine a un compresseur dans un systeme frigorifique
EP1092092B1 (fr) * 1998-07-01 2003-02-26 Zanussi Elettromeccanica S.p.A. Pompe a huile pour compresseur perfectionne

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9201761A (pt) * 1992-05-04 1993-11-09 Brasil Compressores Sa Bomba de oleo para compressor hermetico de velocidade variavel
JP2007510836A (ja) * 2003-11-12 2007-04-26 松下電器産業株式会社 圧縮機
JP2005264738A (ja) * 2004-03-16 2005-09-29 Matsushita Electric Ind Co Ltd 圧縮機
BRPI0604908A (pt) * 2006-10-31 2008-07-01 Whirlpool Sa bomba de óleo para compressor de refrigeração

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2125645A (en) * 1936-06-11 1938-08-02 Crosley Radio Corp Lubricating enclosed engines
EP1092092B1 (fr) * 1998-07-01 2003-02-26 Zanussi Elettromeccanica S.p.A. Pompe a huile pour compresseur perfectionne
US20020172607A1 (en) * 2001-05-18 2002-11-21 Lg Electronics, Inc. Oil supply apparatus for hermetic compressor
US6716001B2 (en) 2001-05-18 2004-04-06 Lg Electronics Inc. Oil supply apparatus for hermetic compressor
WO2003012297A1 (fr) 2001-07-28 2003-02-13 Lg Electronics Inc. Dispositif d'alimentation en huile destine a un compresseur dans un systeme frigorifique

Also Published As

Publication number Publication date
CN104169581B (zh) 2016-07-06
EP2798219A1 (fr) 2014-11-05
CN104169581A (zh) 2014-11-26

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