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WO2014053362A1 - Compresseur hermétique ayant une circulation d'huile améliorée - Google Patents

Compresseur hermétique ayant une circulation d'huile améliorée Download PDF

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Publication number
WO2014053362A1
WO2014053362A1 PCT/EP2013/069843 EP2013069843W WO2014053362A1 WO 2014053362 A1 WO2014053362 A1 WO 2014053362A1 EP 2013069843 W EP2013069843 W EP 2013069843W WO 2014053362 A1 WO2014053362 A1 WO 2014053362A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
bracket
guiding member
hermetic compressor
crankshaft
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/EP2013/069843
Other languages
English (en)
Inventor
Yusuf Koc
Bilgin Hacioglu
Alper Yagci
Arda EYYUBOGLU
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 EP13766522.0A priority Critical patent/EP2912313A1/fr
Publication of WO2014053362A1 publication Critical patent/WO2014053362A1/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
    • F04B39/0027—Pulsation and noise damping means
    • 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
    • F04B39/0223—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
    • F04B39/0284—Constructional details, e.g. reservoirs in the casing

Definitions

  • the present invention relates to a hermetic compressor wherein the circulation of the oil situated therein 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 heat to be removed by decreasing the temperature of the compressor members.
  • the oil at the base of the casing is sucked to be delivered to the bearings and compressor members that should 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.
  • the oil situated in the casing moves towards the movable members by generating waves around the crankshaft with the effect of the centrifugal force created by the crankshaft. Meanwhile, the oil hitting the bracket rubs against the lower and upper parts of the bracket. Thus, turbulence occurs in the oil situated in the casing, adversely affecting the suction of the oil.
  • a hermetic compressor having a crankshaft immersed into the oil in the casing, an oil sucking member disposed through the lower end of the crankshaft into the interior thereof, a bracket providing the oil sucking member to be fixed to the stator and a barrier fixed to the bracket so as to be around the rotational axis of the crankshaft.
  • a hermetic compressor having at least one oil sucking member disposed through the lower end of the crankshaft into the interior thereof and a bracket providing the oil sucking member to be fixed to the stator.
  • the aim of the present invention is the realization of a hermetic compressor wherein the circulation of the oil situated therein is improved and generation of sound is prevented.
  • the hermetic compressor realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a crankshaft mounted to the rotor hub, an oil sucking member disposed through the lower end of the crankshaft into the interior thereof and a bracket whereon the oil sucking member is mounted.
  • the hermetic compressor of the present invention comprises at least one guiding member situated on the bracket, at least partially immersed into the oil and allowing the oil that hits the bracket during the rotation of the crankshaft to continue its movement in its flow direction.
  • the oil passing through the guiding member during the operation of the compressor continues its movement concentric with the crankshaft.
  • the oil hitting the crankshaft is prevented from moving in the opposite direction to the movement direction of the crankshaft and from creating a vortex.
  • the guiding members are arranged one after the other along the bracket.
  • the oil moving during the operation of the motor continuously contacts the bracket.
  • the guiding members the oil is enabled to be guided along the bracket, providing the flow continuity.
  • the guiding member has a cambered shape. Thanks to the cambered shape of the guiding member, the flow continuity of the oil is prevented from being deteriorated during the rotation of the crankshaft.
  • the guiding member transversely extends on the bracket.
  • the lengths of the guiding members arranged one after the other on the bracket are almost equal to the width of the bracket.
  • the guiding member is shaped like an airfoil.
  • the friction force between the oil and the bracket gradually increases.
  • the effect of friction caused by the oil hitting the bracket is decreased.
  • friction-related sound generation is prevented.
  • the hermetic compressor comprises the oil sucking member positioned so as to divide the bracket into two, at least one first guiding member remaining at one side of the oil sucking member and at least one second guiding member remaining at the other side of the oil sucking member.
  • the oil is provided to be guided in its flow direction.
  • the guiding member extends upwards from the upper side of the bracket.
  • the guiding member is shaped like an extension.
  • the guiding member extends from bottom to top on the bracket.
  • the guiding member contributes to the bottom-to-top guiding of the oil moving with the effect of the rotation of the crankshaft.
  • the guiding member is shaped like a cavity.
  • the guiding member is formed on the bracket by the cut-out method.
  • the guiding members are positioned on the bracket at equal intervals.
  • the flow of the oil in the casing while the crankshaft sucks oil is improved.
  • the oil moving in the casing during the rotation of the crankshaft is prevented from hitting the bracket and generating a turbulence.
  • Figure 2 – is the perspective view of a bracket related to an embodiment of the present invention.
  • Figure 3 — is the partial view of the bracket.
  • Figure 4 – is the perspective view of a bracket related to another embodiment of the present invention.
  • the hermetic compressor (1) comprises a casing (2) supporting the members therein and wherein the oil lubricating the movable members is placed, a motor having a rotor (3) and a stator (4), a crankshaft (5) that is snap-fittingly mounted to the hub of the rotor (3) in the direction of the rotation axis thereof, an oil sucking member (6) disposed through the lower end of the crankshaft (5) into the interior thereof and a bracket (7) whereon the oil sucking member (6) is mounted ( Figure 1).
  • the hermetic compressor (1) of the present invention comprises at least one guiding member (8, 108) situated on the bracket (7), at least partially immersed into the oil and allowing the oil that hits the bracket (7) during the rotation of the crankshaft (5) to continue its movement without changing its flow direction ( Figure 1, Figure 2).
  • the oil sucking member (6) Being fixed to the stator (4) by means of the bracket (7), the oil sucking member (6) remains stationary in the gap (B) in the crankshaft (5) during the operation of the motor.
  • the lower end of the crankshaft (5) is immersed into the oil in the casing (2) and the oil in the casing (2) is sucked into the crankshaft (5).
  • the end of the crankshaft (5) where the oil sucking member (6) is placed rotates in the oil.
  • the oil in the casing (2) moves towards the inner surface of the casing (2) by creating waves around the crankshaft (5) with the effect of the centrifugal force generated by the crankshaft (5).
  • the said waves created with the movement of the oil extend almost to the point where the bracket (7) is connected to the stator (4).
  • the oil moving around the crankshaft (5) in the casing (2) continues its movement without turning back by means of the guiding member (8, 108).
  • the guiding member (8, 108) By means of the guiding member (8, 108), a channel forms on the bracket (7) in the flow direction of the oil and generation of unwanted turbulences or vortexes in the oil is prevented.
  • the circulation of the oil is improved.
  • the guiding members (8, 108) the movement of the oil in the casing (2) around the center of the crankshaft (5) continues in an ordered manner. Moreover, the oil is prevented from changing its flow direction by hitting the bracket (7), thereby preventing generation of sound.
  • the guiding members (8, 108) are arranged one after the other on the bracket (7).
  • the oil moving during the operation of the motor continuously contacts the bracket (7).
  • the guiding members (8, 108) the oil is enabled to be guided along the bracket (7), maintaining the flow continuity.
  • the guiding member (8, 108) is in inclined form.
  • the oil is enabled to pass by around the bracket (7) without creating a turbulence, maintaining the flow continuity. The oil is prevented from changing the flow direction.
  • the guiding member (8, 108) transversely extends on the bracket (7).
  • the length of the guiding member (8, 108) is almost equal to the width of the bracket (7).
  • the end of the crankshaft (5) where the oil sucking member (6) is placed rotates in the oil.
  • the oil in the casing (2) moves towards the inner surface of the casing (2) by creating waves around the crankshaft (5) with the effect of the centrifugal force generated by the crankshaft (5).
  • the said waves generated around the oil in the casing (2) create partial rings around the oil sucking member (6).
  • the guiding member (8, 108) provides the oil to move in its flow path during the operation of the hermetic compressor (1) ( Figure 2).
  • the transversal cross-section of the guiding member (8, 108) widens in the flow direction of the oil.
  • the guiding member (8, 108) is at least partially shaped like an airfoil.
  • the hermetic compressor (1) comprises the oil sucking member (6) positioned so as to divide the bracket (7) into two, at least one first guiding member (8) remaining at one side of the oil sucking member (6) and at least one second guiding member (108) remaining at the other side of the oil sucking member (6).
  • the oil is provided to be guided in its flow direction.
  • the first guiding member (8) and the second guiding member (108) extend reverse-symmetrically with respect to the oil sucking member (6).
  • the first guiding member (8) and the second guiding member (108) arranged on the oil sucking member (6) at equal intervals are reverse-symmetrical.
  • the oil moves on an orbit.
  • the first guiding member (8) and the second guiding member (108) provide the oil to move properly on this orbit ( Figure 3).
  • the transversal cross-section of the bracket (7) widens in the flow direction of the oil.
  • the bracket (7) is provided to guide the oil so as to maintain its flow continuity.
  • the guiding member (8, 108) is disposed on the upper side of the bracket (7).
  • the oil sucked from the lower end of the crankshaft (5) is carried upwards to the gap (B) inside the crankshaft (5) and from here to the movable members on the motor such as cylinder, piston, piston rod and sliding bearings by means of the helical grooves on the oil sucking member (6) concentrically placed into the crankshaft (5).
  • the guiding members (8, 108) situated at the upper side of the bracket (7) supports the upwards-guiding of the oil with the rotation of the crankshaft (5).
  • the guiding member (8, 108) is shaped as a protrusion.
  • the guiding member (8, 108) extends from bottom to top on the bracket (7).
  • the guiding member (8, 108) is shaped as a triangle so that the inclination thereof increases in the flow direction of the oil ( Figure 2).
  • the guiding member (8, 108) is shaped as a recess.
  • the guiding member (8, 108) can be formed on the bracket (7) by the cut-out method afterwards or can be formed on the bracket (7) during the production of the bracket (7).
  • the channel-shaped guiding members (8, 108) By means of the channel-shaped guiding members (8, 108), the area of the friction surface between the oil and the bracket (7) is decreased and the oil is guided in its flow direction while passing through the guiding member (8, 108).
  • the guiding member (8, 108) is shaped as a triangle so that the inclination thereof increases in the flow direction of the oil ( Figure 4).
  • the guiding members (8, 108) are situated in parallel on the bracket (7).
  • the oil is provided to be guided in an ordered manner in conformity with its flow on the bracket (7).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
PCT/EP2013/069843 2012-10-05 2013-09-24 Compresseur hermétique ayant une circulation d'huile améliorée Ceased WO2014053362A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13766522.0A EP2912313A1 (fr) 2012-10-05 2013-09-24 Compresseur hermétique ayant une circulation d'huile améliorée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2012/11432 2012-10-05
TR201211432 2012-10-05

Publications (1)

Publication Number Publication Date
WO2014053362A1 true WO2014053362A1 (fr) 2014-04-10

Family

ID=49237208

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/069843 Ceased WO2014053362A1 (fr) 2012-10-05 2013-09-24 Compresseur hermétique ayant une circulation d'huile améliorée

Country Status (2)

Country Link
EP (1) EP2912313A1 (fr)
WO (1) WO2014053362A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119389A (ja) 1983-11-30 1985-06-26 Toshiba Corp 密閉形圧縮機
WO2003012297A1 (fr) * 2001-07-28 2003-02-13 Lg Electronics Inc. Dispositif d'alimentation en huile destine a un compresseur dans un systeme frigorifique
WO2010133508A1 (fr) * 2009-05-22 2010-11-25 Arcelik Anonim Sirketi Compresseur hermétique ayant une lubrification d'efficacité améliorée
WO2012062860A1 (fr) 2010-11-11 2012-05-18 Arcelik Anonim Sirketi Compresseur hermétique dont les performances de lubrification sont améliorées

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119389A (ja) 1983-11-30 1985-06-26 Toshiba Corp 密閉形圧縮機
WO2003012297A1 (fr) * 2001-07-28 2003-02-13 Lg Electronics Inc. Dispositif d'alimentation en huile destine a un compresseur dans un systeme frigorifique
WO2010133508A1 (fr) * 2009-05-22 2010-11-25 Arcelik Anonim Sirketi Compresseur hermétique ayant une lubrification d'efficacité améliorée
WO2012062860A1 (fr) 2010-11-11 2012-05-18 Arcelik Anonim Sirketi Compresseur hermétique dont les performances de lubrification sont améliorées

Also Published As

Publication number Publication date
EP2912313A1 (fr) 2015-09-02

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