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WO2018121844A1 - Appareil de réfrigération équipé d'un compresseur ayant un filtre à huile - Google Patents

Appareil de réfrigération équipé d'un compresseur ayant un filtre à huile Download PDF

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Publication number
WO2018121844A1
WO2018121844A1 PCT/EP2016/082735 EP2016082735W WO2018121844A1 WO 2018121844 A1 WO2018121844 A1 WO 2018121844A1 EP 2016082735 W EP2016082735 W EP 2016082735W WO 2018121844 A1 WO2018121844 A1 WO 2018121844A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
crankshaft
compressor
distal end
refrigeration appliance
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/EP2016/082735
Other languages
English (en)
Inventor
Yasam UZUN
Mehmet Onur DINCER
Gokhan Ozseker
Semih Erol
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 PCT/EP2016/082735 priority Critical patent/WO2018121844A1/fr
Priority to TR2017/14792A priority patent/TR201714792A2/tr
Publication of WO2018121844A1 publication Critical patent/WO2018121844A1/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
    • 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
    • F04C29/023—Lubricant distribution through a hollow driving 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
    • F04B39/0238—Hermetic compressors with oil distribution channels
    • F04B39/0246—Hermetic compressors with oil distribution channels in the rotating shaft
    • F04B39/0253—Hermetic compressors with oil distribution channels in the rotating shaft using centrifugal force for transporting the oil
    • 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
    • F04B39/16—Filtration; Moisture separation
    • 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 present invention relates to a refrigeration appliance having a compressor with an oil filter for filtering oil through the crankshaft.
  • the thermal energy absorbed from the inner cabin of the appliance is discharged by means of a condenser.
  • the refrigerant fluid is accordingly circulated by a compressor between a condenser, a tube expander and an evaporator.
  • the refrigerant fluid undergoes a phase transition from the liquid phase into the gas phase by way of absorbing the ambient heat of the foodstuff preserved within the cabin while passing through the evaporator.
  • the evaporator serves for reducing the temperature of circulating air within the cooling device.
  • Hermetic reciprocating compressors are intended to reduce friction losses of moving parts and reduce the temperature of compressor parts by means of lubrication.
  • oil at the bottom of the housing is transferred to bearings which need to be lubricated and to parts of the compressor to be cooled.
  • centrifugal force acts such that oil being displaced outwards moves upwards to provide lubrication.
  • an oil flow path is formed through the crankshaft in the manner that oil is sucked into an oil flow path by a sucking end member soaked in oil filled at the lower portion of the hermetic housing.
  • the tolerances in the oil path of the compressor are in the order of microns. It is noted that undesired particles that are sucked from the lower portion of the hermetic housing can prevent the crankshaft from rotating, can cause overheating and wear and can ultimately prevent the compressor from operating.
  • the present invention is devised under the recognition that an improved system preventing circulation of unwanted particles within the compressor remains a need.
  • the present invention proposes a refrigeration appliance compressor having an oil filter preventing presence of extraneous material in the oil as provided by the characterizing features defined in Claim 1.
  • Primary object of the present invention is to provide a compressor for a refrigeration appliance, having a filter ensuring filtering of particles.
  • the invention proposes a refrigeration appliance with a compressor having a crankshaft onto the end of which a filter is attached in a position at least partially immersed in lubricating oil to filter oil before reaching to said crankshaft.
  • the filter mounted has lower and lateral filter grates allowing flow of oil into the same.
  • the filter receives distal end of the crankshaft at a partial longitudinal distance while the distal end of the crankshaft is still immersed in oil in mounted state of the filter.
  • the lateral filter grate only extends along a longitudinal portion of the filter corresponding to the level until which the distal end is received into the filter.
  • Fig. 1 demonstrates a perspective view of a compressor in a refrigeration appliance according to the present invention.
  • Fig. 2 demonstrates an upper view of the compressor in the refrigeration appliance according to the present invention.
  • Fig. 3 demonstrates a perspective view of the compressor in the refrigeration appliance according to the present invention.
  • Fig. 4 demonstrates a cross-sectional view along lines H-H as indicated in Fig. 2 according to the present invention.
  • Fig. 5 demonstrates a front perspective view and a lower side perspective view of a filter in the compressor according to the present invention.
  • Fig. 6 demonstrates a side view of the crankshaft for the compressor and alternative filter mounting embodiments according to the present invention.
  • Fig. 7 demonstrates a cross-sectional view along lines B-B as indicated in Fig. 6 and an enlarged view of section D shown in Fig. 7 according to the present invention.
  • Fig. 8 demonstrates a cross-sectional view along lines C-C as indicated in Fig. 6 and an enlarged view of section E shown in Fig. 8 according to the present invention.
  • the present invention proposes a compressor (2) for a refrigeration appliance (1), said refrigeration appliance (1) having a cooling or refrigeration compartment for preserving foodstuff.
  • Said compressor (2) conventionally circulates a refrigerant fluid to a condenser providing the refrigerant fluid to be condensed and an evaporator placed in an evaporator interspace effects refrigeration by absorbing the ambient thermal energy in the refrigeration compartment.
  • the compressor (2) of the refrigeration appliance (1) is illustrated generally in Figure 1, Figure 2 and Figure 3.
  • FIG. 4 depicts the hermetic compressor (2) of the invention with the crankshaft (6) as a detailed cross-sectional view.
  • Lubricating oil is received from the bottom of a compressor (2) housing (crankcase (7)) to be transferred to various parts and bearings. Centrifugal force imparted by the rotor of the motor to the oil provides that it is conventionally displaced upwardly through a flow path (not shown) through the crankshaft (6).
  • a filter (3) immersed in oil at the lower portion of the hermetic housing is disposed on the flow path of the oil at the lowermost portion of the crankshaft (6) captures particles in oil. Extraneous material oil is therefore filtered by means of the filter (3) mounted to the crankshaft’s (6) distal end proximate the base of the crankcase (7).
  • the filter (3) can be mounted to the crankshaft (6) in various configurations as will be explained in detail hereinafter.
  • the filter (3) includes a lateral filter grate (5), a lower filter grate (4), and a solid portion thereinbetween.
  • FIG 6 different embodiments for mounting of the filter (3) on the crankshaft (6) are shown.
  • interengagement of the respective components is performed thanks to the flexible structure of the filter (3).
  • An annular filter protrusion (13) passes over a filter protrusion recess (12) and latches with crankshaft (6) to lock the filter (3) into the crankshaft (6).
  • a first annular flange (10) integral with the crankshaft (6) and a second annular flange (11) integral with the filter (3) are fixedly attached to each other by means of pins (8) through respective holes (9). Therefore, the annular flange of the filter (3) secures the filter (3) to the crankshaft (6) at its lower extremity in operational filtering condition.
  • the present invention proposes a refrigeration appliance (1) comprising a compressor (2) effectuating circulation of a refrigerant to heat exchange units through a fluid circulation circuit, said compressor (2) further having a crankshaft (6) in fluid communication with lubricating oil at a distal end thereof in the manner that lubricating oil is transferrable through said crankshaft (6) by centrifugal force imparted by rotation of said crankshaft (6).
  • said compressor (1) further comprises a filter (3) at least partially immersed in said lubricating oil to cover said distal end of the crankshaft (6) on the flow path of the oil during transfer thereof in response to centrifugal force.
  • the filter (3) mounted to the crankshaft’s (6) distal end is a cylindrical body having lower and lateral filter grates (4, 5).
  • said filter (3) comprises an annular filter protrusion (13) passing over a filter protrusion recess (12) of the crankshaft (6) latching said filter (3) with said crankshaft (6).
  • said crankshaft (6) comprises a first annular flange (10) and said filter (3) comprises a second annular flange (11) in the manner that said first annular flange (10) integral with the crankshaft (6) and said second annular flange (11) integral with the filter (3) are fixedly attached to each other.
  • said filter (3) receives said distal end of the crankshaft (6) in a position immersed into oil in the interengaged position of said filter (3) with said crankshaft (6).
  • This arrangement ensures improved lubrication effect as the crankshaft (6) is in direct contact with oil starting from its non-operational state.
  • lateral filter grate (5) of the filter (3) longitudinally extend along a longitudinal portion of the filter (3) along which said crankshaft (6) is received in the interengaged position of said filter (3) with said crankshaft (6).
  • said filter (3) receives the distal end of the crankshaft (6) at a partial longitudinal distance while the distal end of the crankshaft (6) remains immersed in oil in mounted state of the filter (3).
  • said lateral filter grate (5) only extends along a longitudinal span of the filter (3) corresponding to the level until which the distal end is received into the filter (3).
  • a compressor (2) for a refrigeration appliance (1) comprising a crankshaft (6) in fluid communication with lubricating oil at a distal end thereof in the manner that lubricating oil is transferrable through said crankshaft (6) by centrifugal force imparted by rotation of said crankshaft (6), said compressor (2) further having a filter (3) at least partially immersed in the lubricating oil to cover said distal end portion of the crankshaft (6) on the flow path of the oil during transfer thereof in response to centrifugal force.
  • the present invention proposes a compressor (2) for a refrigeration appliance (1), said compressor (2) minimizing risks occurring in the case of inadequate hydrodynamic lubrication conditions.
  • the crank-mounted filter (3) ensures that the refrigeration appliance (1) operates safely and that undesired particles in the cooling system are not carried with the coolant. In the case of undesired particulate reaching to the compressor (2), these particles are retained in the compressor oil and trapped in the crankcase (7). Therefore, situations such as prevention of the crank rotation, wear and consequent distortion of the crankshaft (6) operation by undesired particles are eliminated.

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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)

Abstract

L'invention concerne un appareil de réfrigération (1) comprenant un compresseur (2) effectuant la circulation d'un fluide frigorigène vers des unités d'échange de chaleur à travers un circuit de circulation de fluide, ledit compresseur (2) ayant en outre un vilebrequin (6) en communication fluidique avec de l'huile de lubrification au niveau d'une extrémité distale de celui-ci de sorte que l'huile de lubrification puisse être transférée à travers ledit vilebrequin (6) par la force centrifuge conférée par la rotation dudit vilebrequin (6). Un filtre à huile (3) est fixé à l'extrémité distale du vilebrequin (6) et la recouvre complètement.
PCT/EP2016/082735 2016-12-28 2016-12-28 Appareil de réfrigération équipé d'un compresseur ayant un filtre à huile Ceased WO2018121844A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2016/082735 WO2018121844A1 (fr) 2016-12-28 2016-12-28 Appareil de réfrigération équipé d'un compresseur ayant un filtre à huile
TR2017/14792A TR201714792A2 (tr) 2016-12-28 2017-10-02 Bi̇r yağ fi̇ltresi̇ne sahi̇p bi̇r kompresör i̇çeren soğutucu ci̇haz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/082735 WO2018121844A1 (fr) 2016-12-28 2016-12-28 Appareil de réfrigération équipé d'un compresseur ayant un filtre à huile

Publications (1)

Publication Number Publication Date
WO2018121844A1 true WO2018121844A1 (fr) 2018-07-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/082735 Ceased WO2018121844A1 (fr) 2016-12-28 2016-12-28 Appareil de réfrigération équipé d'un compresseur ayant un filtre à huile

Country Status (2)

Country Link
TR (1) TR201714792A2 (fr)
WO (1) WO2018121844A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111237162A (zh) * 2018-11-29 2020-06-05 安徽美芝制冷设备有限公司 用于压缩机的底盘和具有其的压缩机
CN114856972A (zh) * 2022-06-01 2022-08-05 珠海格力电器股份有限公司 一种压缩机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06235387A (ja) * 1993-02-10 1994-08-23 Mitsubishi Electric Corp 圧縮機の給油装置
JPH0828475A (ja) * 1994-07-13 1996-01-30 Matsushita Electric Ind Co Ltd 密閉型スクロール圧縮機および密閉型スクロール圧縮機を用いた空気調和機の制御装置
US20030010573A1 (en) * 2001-07-14 2003-01-16 Kueon Young-Su Oil pickup apparatus for hermetic compressor
JP2004162719A (ja) * 2004-01-16 2004-06-10 Matsushita Electric Ind Co Ltd 空気調和機の制御装置
EP1764507A2 (fr) * 2005-09-20 2007-03-21 Sanyo Electric Co., Ltd. Compresseur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06235387A (ja) * 1993-02-10 1994-08-23 Mitsubishi Electric Corp 圧縮機の給油装置
JPH0828475A (ja) * 1994-07-13 1996-01-30 Matsushita Electric Ind Co Ltd 密閉型スクロール圧縮機および密閉型スクロール圧縮機を用いた空気調和機の制御装置
US20030010573A1 (en) * 2001-07-14 2003-01-16 Kueon Young-Su Oil pickup apparatus for hermetic compressor
JP2004162719A (ja) * 2004-01-16 2004-06-10 Matsushita Electric Ind Co Ltd 空気調和機の制御装置
EP1764507A2 (fr) * 2005-09-20 2007-03-21 Sanyo Electric Co., Ltd. Compresseur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111237162A (zh) * 2018-11-29 2020-06-05 安徽美芝制冷设备有限公司 用于压缩机的底盘和具有其的压缩机
CN111237162B (zh) * 2018-11-29 2021-12-03 安徽美芝制冷设备有限公司 用于压缩机的底盘和具有其的压缩机
CN114856972A (zh) * 2022-06-01 2022-08-05 珠海格力电器股份有限公司 一种压缩机

Also Published As

Publication number Publication date
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