EP3770430B1 - Verdichter mit verbesserter schmierleistung - Google Patents

Verdichter mit verbesserter schmierleistung Download PDF

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Publication number
EP3770430B1
EP3770430B1 EP20187449.2A EP20187449A EP3770430B1 EP 3770430 B1 EP3770430 B1 EP 3770430B1 EP 20187449 A EP20187449 A EP 20187449A EP 3770430 B1 EP3770430 B1 EP 3770430B1
Authority
EP
European Patent Office
Prior art keywords
crankshaft
oil
compressor
reservoir
suction tube
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.)
Active
Application number
EP20187449.2A
Other languages
English (en)
French (fr)
Other versions
EP3770430A1 (de
Inventor
Melih OZDILEK
Bilgin Hacioglu
Sitki Bicer
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
Publication of EP3770430A1 publication Critical patent/EP3770430A1/de
Application granted granted Critical
Publication of EP3770430B1 publication Critical patent/EP3770430B1/de
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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
    • F04B39/0238—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
    • 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
    • F04B39/02—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 compressor comprising an oil suction tube which moves together with the crankshaft.
  • the circulation of the refrigerant liquid used for refrigeration is provided by a compressor.
  • the delivery of the oil to the bearings formed by the movable surfaces is provided by means of an oil suction tube.
  • the oil on the base of the lower casing is sucked and delivered to the bearings to be lubricated and to compressor components to be cooled down.
  • the centrifugal force acting on the oil as a result of the rotation of the crankshaft is used to deliver the oil on the base of the casing to the bearings.
  • the oil first enters through the lower hole of the oil suction tube.
  • the oil moving over the inner surface of the crankshaft reaches the helical channel arranged on the outer surface of the crankshaft.
  • the oil moving through the helical channel is finally discharged from the channel which is arranged on the crankshaft and which opens into the compressor.
  • the oil in the oil suction tube at the idle time of the compressor trickles down to the lower casing with the effect of gravity.
  • the effect of the centrifugal force decreases and sufficient amount of oil for lubrication cannot be provided.
  • a certain period of time elapses for the oil to be sucked from the base of the casing and delivered to the bearings.
  • the aim of the present invention is the realization of a compressor with improved lubrication performance.
  • the compressor realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises an oil suction tube which is attached to the end of the crankshaft; a reservoir which is disposed between the oil suction tube and the crankshaft and which extends along the diameter of the crankshaft in the horizontal axis; and at least one channel with one end opening into the reservoir, which is arranged in the crankshaft.
  • the reservoir disposed between the crankshaft and the oil suction tube By means of the reservoir disposed between the crankshaft and the oil suction tube, an efficient oil suction process is realized.
  • the oil received from the reservoir is directed towards the channel with a smaller diameter than the reservoir which is arranged in the crankshaft, and the flow rate of the oil sucked by the oil suction tube is regulated such that the amount of oil leaving the crankshaft at high speeds is decreased and problems such important factors which affect the lifespan and the efficiency of the compressor. Since the centrifugal force effect decreases during the low speed operation of the compressor, the problem encountered during the delivery of sufficient amount of oil to the bearings is eliminated, ensuring that sufficient amount of oil is delivered to the bearings even at low speeds due to the relative speed between the crankshaft and the lubrication screw by means of the oil suction tube.
  • an oil suction tube is disclosed, that is rotated in the reverse direction of the crankshaft by means of the gears.
  • Another state of the art WO 2010 133508 A1 discloses a compressor with an oil suction pipe having a helical shaped protrusion surrounding the outer surface of its end remaining in the lubricant inside the casing and a cylindrical receptacle secured to the casing, into which the end of the oil suction pipe is inserted, which encircles the protrusion such that a gap is left therebetween.
  • WO 2010/133508 discloses a hermetic compressor which lower end of the shaft enters an oil reservoir and provides due to its lower design a additional reservoir within the shaft where the oil remains in case of a stop.
  • the aim of the present invention is the realization of a compressor with improved lubrication performance.
  • the compressor realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises an oil suction tube which is attached to the end of the crankshaft; a reservoir which is disposed between the oil suction tube and the crankshaft and which extends along the diameter of the crankshaft in the horizontal axis; and at least one channel with one end opening into the reservoir, which is arranged in the crankshaft.
  • the reservoir disposed between the crankshaft and the oil suction tube By means of the reservoir disposed between the crankshaft and the oil suction tube, an efficient oil suction process is realized.
  • the oil received from the reservoir is directed towards the channel with a smaller diameter than the reservoir which is arranged in the crankshaft, and the flow rate of the oil sucked by the oil suction tube is regulated such that the amount of oil leaving the crankshaft at high speeds is decreased and problems such as lack of oil in the compressor and increase in noise are prevented.
  • the flow rate of the oil is regulated, and the performance at high speeds is improved.
  • the oil suction tube is enabled to stay in the crankshaft with a larger diameter in a stable manner and the oil performance is increased.
  • the compressor comprises two channels which are symmetrical to the central axis of the crankshaft and which open into the reservoir from one end each and outside the crankshaft from the other end.
  • the channel is cylindrical and the channels are inclined from the center of the crankshaft towards the edge thereof.
  • the volume of the crankshaft is divided into two, enabling the oil to be carried more efficiently. Consequently, the effect of capillarity is increased, and the centrifugal force can be used more efficiently, and the oil can be delivered in particular to the components to be cooled or lubricated at low speeds.
  • the oil received from the reservoir is directed towards the channel with a smaller diameter than the reservoir which is arranged in the crankshaft, and the flow rate of the oil sucked by the oil suction tube is regulated such that the amount of oil leaving the crankshaft at high speeds is decreased and an efficient oil suction process is realized while problems such as lack of oil in the compressor and increase in noise are prevented.
  • the compressor (1) comprises a motor (2) composed of two main components, namely a stator (3) and a rotor (4); a crankshaft (5) which transmits the motion received from the motor (2) and which enables the delivery of the oil; a cylinder block (6); a bearing (7) which enables the crankshaft (5) to be borne in the radial direction to the cylinder block (6); an upper casing (8) which covers the movable components; a lower casing (9) at the base of which the oil is disposed; an oil suction tube (10) which is attached to the end of the crankshaft (5); a reservoir (11) which is disposed between the oil suction tube (10) and the crankshaft (5) and which extends along the diameter of the (5) crankshaft in the horizontal axis; and at least one channel (12) with one end opening into the reservoir (11), which is arranged in the crankshaft (5) ( Figure 1 ).
  • the reservoir (11) disposed between the crankshaft (5) and the oil suction tube (10) By means of the reservoir (11) disposed between the crankshaft (5) and the oil suction tube (10), an efficient oil suction process is realized.
  • the oil received from the reservoir (11) is directed towards the channel (12) with a smaller diameter than the reservoir (11) which is arranged in the crankshaft (5), and the flow rate of the oil sucked by the oil suction tube (10) is regulated such that the amount of oil leaving the crankshaft (5) at high speeds is decreased and problems such as lack of oil in the compressor (1) and increase in noise are prevented.
  • the cross-section of the reservoir (11) is quadrilateral.
  • the circulation of the refrigerant fluid used for refrigeration is provided by the compressor (1).
  • the rotational movement of the motor (2) is transmitted to the piston by means of the crank-connecting rod-crankpin mechanism, thus realizing the reciprocating movement of the piston.
  • the refrigerant fluid in the cylinder hole is compressed.
  • the suction leaf on the valve table opens into the cylinder hole, the gas entering the suction valve is compressed and pressurized to the desired level and passes through the exhaust port with the opening of the exhaust leaf on the valve table, thus the high-pressure gas is delivered to the exhaust chamber of the cylinder head and the refrigerant fluid is delivered after the exhaust chamber.
  • the flow rate of the oil is regulated, and the performance at high speeds is improved.
  • the oil suction tube (10) is enabled to stay in the crankshaft (5) with a larger diameter in a stable manner and the oil performance is increased.
  • the compressor (1) comprises two channels (12) which are symmetrical to the central axis of the crankshaft (5) and which open into the reservoir (11) from one end each.
  • one end of the channels (12) opens into the reservoir while the other ends thereof open outside the crankshaft (5) ( Figure 2 ).
  • the channel (12) is cylindrical.
  • the channels (12) are inclined from the center of the crankshaft (5) towards the edge thereof.
  • the crankshaft (5) and the oil suction tube (10) fixed to the end thereof move together.
  • the volume of the crankshaft (5) is divided into two, enabling the oil to be carried more efficiently.
  • the effect of capillarity is increased, and the centrifugal force can be used more efficiently, and the oil can be delivered in particular to the components to be cooled or lubricated at low speeds.
  • the oil received from the reservoir (11) is directed towards the channel (12) with a smaller diameter than the reservoir (11) which is arranged in the crankshaft (5), and the flow rate of the oil sucked by the oil suction tube (10) is regulated such that the amount of oil leaving the crankshaft (5) at high speeds is decreased and an efficient oil suction process is realized while problems such as lack of oil in the compressor (1) and increase in noise are prevented.

Landscapes

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

Claims (3)

  1. Ein Kompressor (1) umfasst einen Motor (2), der aus zwei Hauptkomponenten besteht, nämlich einem Stator (3) und einem Rotor (4); eine Kurbelwelle (5), die die Bewegung vom Motor (2) überträgt und die Ölzufuhr ermöglicht; einen Zylinderblock (6); ein Lager (7), das die Kurbelwelle (5) in radialer Richtung zum Zylinderblock (6) trägt; ein oberes Gehäuse (8), das die beweglichen Komponenten abdeckt; ein unteres Gehäuse (9), in dem sich das Öl befindet; und ein Ölsaugrohr (10), das am Ende der Kurbelwelle (5) befestigt ist, ein Behälter (11), der zwischen dem Ölsaugrohr (10) und der Kurbelwelle (5) angeordnet ist und sich entlang des Durchmessers der Kurbelwelle (5) in horizontaler Richtung erstreckt; und mindestens ein Kanal (12) mit einem Ende, das in den Behälter (11) öffnet, der in der Kurbelwelle (5) angeordnet ist, gekennzeichnet durch zwei Kanäle (12), die symmetrisch zur zentralen Achse der Kurbelwelle (5) angeordnet sind und von jedem Ende in den Behälter (11) öffnen und zylindrisch sind und sich vom Zentrum der Kurbelwelle (5) zum Rand hin neigen.
  2. Ein Kompressor (1) gemäß Anspruch 1, gekennzeichnet durch den Kanal (12), der einen kleineren Durchmesser als den Behälter (11) hat.
  3. Ein Kompressor (1) gemäß einem der Ansprüche 1 oder 2, gekennzeichnet durch den Kanal (12), der an einem Ende in den Behälter (11) öffnet und an einem anderen Ende außerhalb der Kurbelwelle (5) öffnet.
EP20187449.2A 2019-07-26 2020-07-23 Verdichter mit verbesserter schmierleistung Active EP3770430B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR201911315 2019-07-26

Publications (2)

Publication Number Publication Date
EP3770430A1 EP3770430A1 (de) 2021-01-27
EP3770430B1 true EP3770430B1 (de) 2023-09-06

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EP20187449.2A Active EP3770430B1 (de) 2019-07-26 2020-07-23 Verdichter mit verbesserter schmierleistung

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EP (1) EP3770430B1 (de)
PL (1) PL3770430T3 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9617996B2 (en) * 2012-02-09 2017-04-11 Daikin Industries, Ltd. Compressor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2583583A (en) * 1948-10-20 1952-01-29 John R Mangan Compressor pump
SE422699B (sv) 1980-08-05 1982-03-22 Leonid Stepanovich Tjurikov Smorjanordning med smutsavskiljare for kompressorer med vertikalt anordnad axel
KR100395955B1 (ko) 2001-05-18 2003-08-27 주식회사 엘지이아이 밀폐형 압축기의 오일펌핑장치
EP2433005A1 (de) * 2009-05-22 2012-03-28 Arçelik Anonim Sirketi Hermetischer verdichter mit erhöhter schmiereffizienz
WO2016192976A1 (en) * 2015-06-02 2016-12-08 Arcelik Anonim Sirketi Compressor with a movable oil suction apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9617996B2 (en) * 2012-02-09 2017-04-11 Daikin Industries, Ltd. Compressor

Also Published As

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PL3770430T3 (pl) 2024-02-26
EP3770430A1 (de) 2021-01-27

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