EP3824185B1 - A compressor with improved operational efficiency - Google Patents

A compressor with improved operational efficiency Download PDF

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Publication number
EP3824185B1
EP3824185B1 EP19728612.3A EP19728612A EP3824185B1 EP 3824185 B1 EP3824185 B1 EP 3824185B1 EP 19728612 A EP19728612 A EP 19728612A EP 3824185 B1 EP3824185 B1 EP 3824185B1
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EP
European Patent Office
Prior art keywords
cylinder head
gas outlet
outlet duct
compressor
port
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Active
Application number
EP19728612.3A
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German (de)
French (fr)
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EP3824185A1 (en
Inventor
Mehmet Onur DINCER
Ergin TASDELEN
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
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Arcelik AS
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    • 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

Definitions

  • the present invention relates to a compressor.
  • the present invention relates to a compressor adapted to be used in cooler appliances.
  • a discharge tube is usually assembled by two different methods. In the first method, an ferrule welded on an end of the discharge tube is fastened to the cylinder head by one of cylinder head bolts. In the second method, the ferrule is coupled by a bolt to a small slot formed on the body. In these applications, there is the risk of high pressure cooling fluid leaking from in between the ferrule and the surface it rests on. Furthermore, an additional operation is required in compressor assembly for said coupling.
  • EP3039292B1 discloses a compressor.
  • the aim of the present invention is to minimize the risk of refrigerant leakage likely to occur on a coupling point of a vibration eliminator to a cylinder head.
  • the compressor realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises a housing, and a body provided in the housing, on which movable components are placed.
  • a cylinder bearing is provided in the body, in which the cylinder moves.
  • An annular cut-out is formed on the face surface for said cylinder bearing.
  • a valve plate gasket, valve plate, cylinder head gasket and a cylinder head are placed on the face surface respectively.
  • the inner volume of the cylinder head is segmented by means of a wall, forming a pressure chamber.
  • a discharge tube ferrule is placed in the pressure chamber. Two inlets are provided on the discharge tube ferrule, namely a first port and a second port in which the vibration eliminator fits.
  • the vibration eliminator is inserted into the cylinder head by means of a cut-out provided on the cylinder head, and fits into the second port. Cooling fluid leakage is prevented by means of a gasket provided around the vibration eliminator. By means of the discharge tube ferrule, the cooling fluid is enabled to be collected and to be transmitted to the vibration eliminator so as not to allow leakage thereof. Refrigerant leakage risk likely to occur at the region where the vibration eliminator is connected to the compressor is thus minimized.
  • the compressor comprises a cylinder head gasket having the fourth gas outlet duct positioned so as to correspond to the first port, allowing cooling fluid to pass therethrough.
  • the first port and the fourth gas outlet duct are placed concentrically.
  • the third gas outlet duct provided on the valve plate is positioned concentrically with the fourth gas outlet duct.
  • the second gas outlet duct which is provided on the valve plate gasket is positioned concentrically with the third gas outlet duct.
  • the first gas outlet duct which is provided on the face surface is placed concentrically with the second gas outlet duct.
  • the discharge tube ferrule comprises an L-shaped gas discharge line extending between the first port and the second port.
  • the gas discharge line is curved. Said curve facilitates passage of the cooling fluid therethrough and minimizes back pressure, thereby improving operational efficiency of the compressor.
  • the discharge tube ferrule comprises a gas discharge line with an inner surface with grooved structure.
  • the grooved structure facilitates transmission of the cooling fluid passing through the gas discharge line and reduces back pressure, thereby improving operational efficiency of the compressor.
  • the present invention provides ease of assembly in compressors by means of connecting the vibration eliminator to the compressor kit without using a coupling member, while averting cooling fluid leakages.
  • the compressor (1) of the invention comprises a housing (2) enclosing movable components, a body (3) provided in the housing (2), on which movable components are collected, a face surface (4) provided on the body (3), a cylinder bore (5) provided on the face surface (4), a valve plate gasket (6) mounted so as to be disposed on the cylinder bore (5), a valve plate (7) placed on the valve plate gasket (6), enabling a circulating fluid to be sucked and pumped, a cylinder head (8) placed on the valve plate (7), and a cylinder head gasket (9) placed between the cylinder head (8) and the valve plate (7).
  • the compressor (1) of the invention comprises a pressure chamber (11) isolated from the inner volume of the cylinder head (8) by at least one wall (10), and a discharge tube ferrule (16) having a first port (12) facing the inner volume of the cylinder head (8) and a second port (15) in which fits a vibration eliminator (14) inserted into the pressure chamber (11) by means of a gasket (13) placed on the cut-out provided on the cylinder head (8).
  • the movable components of the compressor (1) are accommodated in a housing (2).
  • the body (3) and the other components are placed in the housing (2). Interior of the body (3) is emptied so as to allow movement of the cylinder.
  • the cylinder compresses the cooling fluid during its motion and pumps the cooling fluid by partially rising above the face surface (4) of the body.
  • the cylinder head (8) is placed on the face surface (4).
  • the valve plate gasket (6), valve plate (7) and the cylinder head gasket (9) are placed between the face surface (4) and the cylinder head respectively.
  • the inner volume of the cylinder head (8) is segmented by means of a wall (10), forming a pressure chamber (11).
  • the discharge tube ferrule (16) is placed in the pressure chamber (11).
  • the discharge tube ferrule (16) almost completely fills the pressure chamber (11). Gaps likely to form therewith may be filled by plates placed between the discharge tube ferrule (16) and the pressure chamber (11).
  • the discharge tube ferrule (16) comprises a first port (12) facing the inner volume of the cylinder head (8) and a second port (15) in which the vibration eliminator (14) fits.
  • the vibration eliminator (14) is inserted into the cylinder head (8) by means of a cut-out provided on the cylinder head (8). Cooling fluid leakage is prevented by means of a gasket (13) provided around the vibration eliminator (14).
  • the discharge tube ferrule (16) is cooling fluid sealingly fastened together with the vibration eliminator fitted by being inserted into the second port (15), thereby minimizing refrigerant leakage risk likely to occur on the coupling point, improving operational efficiency of the compressor.
  • the compressor (1) comprises a first gas outlet duct (17) provided on the face surface (4), a valve plate gasket (6) having a second gas outlet duct (18) placed concentrically on the first gas outlet duct (17), a valve plate (7) having a third gas outlet duct (19) placed concentrically on the second gas outlet duct (18), a cylinder head gasket (9) having a fourth gas outlet duct (20) placed concentrically on the third gas outlet duct (19), and a discharge tube ferrule (16) having a first port (12) placed concentrically on the fourth gas outlet duct (20).
  • the second gas outlet duct (18), third gas outlet duct (19) and the fourth gas outlet duct (20) provided with the valve plate gasket (6), valve plate (7) and the cylinder head gasket (9) respectively, are placed on top of each other so as to be concentric. Cooling fluid leakage is thus prevented in between.
  • the second gas outlet duct (18) is placed concentrically on a first gas outlet duct (17) provided on the face surface (4) and the fourth gas outlet duct (20) is placed concentrically on the first port (12) of the discharge tube ferrule (16), thereby forming a cooling fluid duct in which cooling fluid leakage is inhibited. The risk of cooling fluid leakage is thus eliminated, improving operational efficiency of the compressor (1).
  • the compressor (1) comprises a discharge tube ferrule (16) having a gas discharge line (21) with curved structure between the first port (12) and the second port (15).
  • the curved structure of the gas discharge line (21) between the first port (12) and the second port (15) minimizes back pressure, improving operational efficiency of the compressor (1).
  • the compressor (1) of the invention comprises a discharge tube ferrule (16) comprising a gas discharge line (21) with an inner surface with grooved structure.
  • the surface with grooved structure enables minimizing the resistance encountering the cooling fluid while passing through the discharge line (21), improving operational efficiency of the compressor (1).
  • the vibration eliminator (14) being coupled on the cylinder head (8) by means of the discharge tube ferrule (16) eliminates the necessity to use additional gaskets and bolts, providing cost advantage.

Description

  • The present invention relates to a compressor. In particular, the present invention relates to a compressor adapted to be used in cooler appliances.
  • In order to enhance efficiency of compressors used in domestic type coolers, designs are present in which exhaust mufflers through which high temperature cooling fluid passes, are disconnected from the compressor body and placed on a vibration eliminator. In addition, it is also observed that mufflers are not utilized in some low cooling capacity compressors. However, there are certain risks and challenges in assembling the discharge tube in said applications. In such applications, a discharge tube is usually assembled by two different methods. In the first method, an ferrule welded on an end of the discharge tube is fastened to the cylinder head by one of cylinder head bolts. In the second method, the ferrule is coupled by a bolt to a small slot formed on the body. In these applications, there is the risk of high pressure cooling fluid leaking from in between the ferrule and the surface it rests on. Furthermore, an additional operation is required in compressor assembly for said coupling.
  • State of the art patent document no. US2009068029A discloses a compressor.
  • State of the art patent document no. EP3039292B1 discloses a compressor.
  • The document US 4 371 319 discloses a compressor with the features of the preamble of claim 1.
  • The aim of the present invention is to minimize the risk of refrigerant leakage likely to occur on a coupling point of a vibration eliminator to a cylinder head.
  • The compressor realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises a housing, and a body provided in the housing, on which movable components are placed. A cylinder bearing is provided in the body, in which the cylinder moves. An annular cut-out is formed on the face surface for said cylinder bearing. A valve plate gasket, valve plate, cylinder head gasket and a cylinder head are placed on the face surface respectively. The inner volume of the cylinder head is segmented by means of a wall, forming a pressure chamber. A discharge tube ferrule is placed in the pressure chamber. Two inlets are provided on the discharge tube ferrule, namely a first port and a second port in which the vibration eliminator fits. The vibration eliminator is inserted into the cylinder head by means of a cut-out provided on the cylinder head, and fits into the second port. Cooling fluid leakage is prevented by means of a gasket provided around the vibration eliminator. By means of the discharge tube ferrule, the cooling fluid is enabled to be collected and to be transmitted to the vibration eliminator so as not to allow leakage thereof. Refrigerant leakage risk likely to occur at the region where the vibration eliminator is connected to the compressor is thus minimized.
  • In an embodiment of the invention, the compressor comprises a cylinder head gasket having the fourth gas outlet duct positioned so as to correspond to the first port, allowing cooling fluid to pass therethrough. The first port and the fourth gas outlet duct are placed concentrically. Likewise, the third gas outlet duct provided on the valve plate is positioned concentrically with the fourth gas outlet duct. In addition, the second gas outlet duct which is provided on the valve plate gasket is positioned concentrically with the third gas outlet duct. Likewise, the first gas outlet duct which is provided on the face surface is placed concentrically with the second gas outlet duct. By this, all of the aforementioned gas discharge ducts are placed concentrically with the first port, forming a gas discharge duct used in transmitting the cooling fluid. Cooling fluid leakage is thus averted, improving operational efficiency of the compressor.
  • In an embodiment of the invention, the discharge tube ferrule comprises an L-shaped gas discharge line extending between the first port and the second port. The gas discharge line is curved. Said curve facilitates passage of the cooling fluid therethrough and minimizes back pressure, thereby improving operational efficiency of the compressor.
  • In an embodiment of the invention, the discharge tube ferrule comprises a gas discharge line with an inner surface with grooved structure. The grooved structure facilitates transmission of the cooling fluid passing through the gas discharge line and reduces back pressure, thereby improving operational efficiency of the compressor.
  • The present invention provides ease of assembly in compressors by means of connecting the vibration eliminator to the compressor kit without using a coupling member, while averting cooling fluid leakages.
  • The compressor realized to achieve the aims of the present invention is illustrated in the accompanying drawings, wherein:
    • Figure 1 is a perspective view of the compressor.
    • Figure 2 is a side sectional view of the body.
    • Figure 3 is an exploded view of the body from above.
    • Figure 4 is an exploded side view of the body.
    • Figure 5 is an exploded side view of the body.
    • Figure 6 is a frontal view of the cylinder head.
    • Figure 7 is a close-up view of the B section of Figure 6.
    • Figure 8 is a side section of the discharge tube ferrule.
  • The elements in the figures are numbered individually and the correspondence of these numbers are given hereinafter.
    1. 1. Compressor
    2. 2. Housing
    3. 3. Body
    4. 4. Face surface
    5. 5. Cylinder bore
    6. 6. Valve plate gasket
    7. 7. Valve plate
    8. 8. Cylinder head
    9. 9. Cylinder head gasket
    10. 10. Wall
    11. 11. Pressure chamber
    12. 12. First port
    13. 13. Gasket
    14. 14. Vibration eliminator
    15. 15. Second port
    16. 16. Discharge tube ferrule
    17. 17. First gas outlet duct
    18. 18. Second gas outlet duct
    19. 19. Third gas outlet duct
    20. 20. Fourth gas outlet duct
    21. 21. Gas discharge line
  • The compressor (1) of the invention comprises a housing (2) enclosing movable components, a body (3) provided in the housing (2), on which movable components are collected, a face surface (4) provided on the body (3), a cylinder bore (5) provided on the face surface (4), a valve plate gasket (6) mounted so as to be disposed on the cylinder bore (5), a valve plate (7) placed on the valve plate gasket (6), enabling a circulating fluid to be sucked and pumped, a cylinder head (8) placed on the valve plate (7), and a cylinder head gasket (9) placed between the cylinder head (8) and the valve plate (7).
  • The compressor (1) of the invention comprises a pressure chamber (11) isolated from the inner volume of the cylinder head (8) by at least one wall (10), and a discharge tube ferrule (16) having a first port (12) facing the inner volume of the cylinder head (8) and a second port (15) in which fits a vibration eliminator (14) inserted into the pressure chamber (11) by means of a gasket (13) placed on the cut-out provided on the cylinder head (8). The movable components of the compressor (1) are accommodated in a housing (2). The body (3) and the other components are placed in the housing (2). Interior of the body (3) is emptied so as to allow movement of the cylinder. The cylinder compresses the cooling fluid during its motion and pumps the cooling fluid by partially rising above the face surface (4) of the body. The cylinder head (8) is placed on the face surface (4). The valve plate gasket (6), valve plate (7) and the cylinder head gasket (9) are placed between the face surface (4) and the cylinder head respectively. The inner volume of the cylinder head (8) is segmented by means of a wall (10), forming a pressure chamber (11). The discharge tube ferrule (16) is placed in the pressure chamber (11). The discharge tube ferrule (16) almost completely fills the pressure chamber (11). Gaps likely to form therewith may be filled by plates placed between the discharge tube ferrule (16) and the pressure chamber (11). The discharge tube ferrule (16) comprises a first port (12) facing the inner volume of the cylinder head (8) and a second port (15) in which the vibration eliminator (14) fits. The vibration eliminator (14) is inserted into the cylinder head (8) by means of a cut-out provided on the cylinder head (8). Cooling fluid leakage is prevented by means of a gasket (13) provided around the vibration eliminator (14). The discharge tube ferrule (16) is cooling fluid sealingly fastened together with the vibration eliminator fitted by being inserted into the second port (15), thereby minimizing refrigerant leakage risk likely to occur on the coupling point, improving operational efficiency of the compressor.
  • In another embodiment of the invention, the compressor (1) comprises a first gas outlet duct (17) provided on the face surface (4), a valve plate gasket (6) having a second gas outlet duct (18) placed concentrically on the first gas outlet duct (17), a valve plate (7) having a third gas outlet duct (19) placed concentrically on the second gas outlet duct (18), a cylinder head gasket (9) having a fourth gas outlet duct (20) placed concentrically on the third gas outlet duct (19), and a discharge tube ferrule (16) having a first port (12) placed concentrically on the fourth gas outlet duct (20). The second gas outlet duct (18), third gas outlet duct (19) and the fourth gas outlet duct (20) provided with the valve plate gasket (6), valve plate (7) and the cylinder head gasket (9) respectively, are placed on top of each other so as to be concentric. Cooling fluid leakage is thus prevented in between. Likewise, the second gas outlet duct (18) is placed concentrically on a first gas outlet duct (17) provided on the face surface (4) and the fourth gas outlet duct (20) is placed concentrically on the first port (12) of the discharge tube ferrule (16), thereby forming a cooling fluid duct in which cooling fluid leakage is inhibited. The risk of cooling fluid leakage is thus eliminated, improving operational efficiency of the compressor (1).
  • In another embodiment of the invention, the compressor (1) comprises a discharge tube ferrule (16) having a gas discharge line (21) with curved structure between the first port (12) and the second port (15). The curved structure of the gas discharge line (21) between the first port (12) and the second port (15) minimizes back pressure, improving operational efficiency of the compressor (1).
  • The compressor (1) of the invention comprises a discharge tube ferrule (16) comprising a gas discharge line (21) with an inner surface with grooved structure. The surface with grooved structure enables minimizing the resistance encountering the cooling fluid while passing through the discharge line (21), improving operational efficiency of the compressor (1).
  • In the compressor (1) of the invention, the vibration eliminator (14) being coupled on the cylinder head (8) by means of the discharge tube ferrule (16) eliminates the necessity to use additional gaskets and bolts, providing cost advantage.

Claims (4)

  1. A compressor (1) comprising a housing (2) enclosing movable components, a body (3) provided in the housing (2), on which movable components such as a cylinder and a vibration eliminator (14) are collected, a face surface (4) provided on the body (3), a cylinder bore (5) provided on the face surface (4), a valve plate gasket (6) mounted so as to be disposed on the cylinder bore (5), a valve plate (7) placed on the valve plate gasket (6), enabling a circulating fluid to be sucked and pumped, a cylinder head (8) placed on the valve plate (7), and a cylinder head gasket (9) placed between the cylinder head (8) and the valve plate (7), characterized by a pressure chamber (11) being provided within the cylinder head and being isolated from the inner volume of the cylinder head (8) by at least one wall (10) and by a discharge tube ferrule (16) having a first port (12) facing the inner volume of the cylinder head (8) and a second port (15), whereby the second port (15) fits the vibration eliminator (14) that is inserted into the pressure chamber (11) by means of a gasket (13) placed on a cut-out provided on the cylinder head (8).
  2. A compressor (1) according to claim 1, characterized by a first gas outlet duct (17) provided on the face surface (4), the valve plate gasket (6) having a second gas outlet duct (18) placed concentrically on the first gas outlet duct (17), the valve plate (7) having a third gas outlet duct (19) placed concentrically on the second gas outlet duct (18), a cylinder head gasket (9) having a fourth gas outlet duct (20) placed concentrically on the third gas outlet duct (19), and by a discharge tube ferrule (16) having a first port (12) placed concentrically on the fourth gas outlet duct (20).
  3. A compressor (1) according to any one of the preceding claims, characterized by the discharge tube ferrule (16) having a gas discharge line (21) with curved structure between the first port (12) and the second port (15).
  4. A compressor (1) according to any one of the preceding claims, characterized by the discharge tube ferrule (16) comprising a gas discharge line (21) having an inner surface with grooved structure.
EP19728612.3A 2018-07-17 2019-05-28 A compressor with improved operational efficiency Active EP3824185B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201810167 2018-07-17
PCT/EP2019/063783 WO2020015899A1 (en) 2018-07-17 2019-05-28 A compressor with improved operational efficiency

Publications (2)

Publication Number Publication Date
EP3824185A1 EP3824185A1 (en) 2021-05-26
EP3824185B1 true EP3824185B1 (en) 2022-05-04

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ID=66770439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19728612.3A Active EP3824185B1 (en) 2018-07-17 2019-05-28 A compressor with improved operational efficiency

Country Status (3)

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EP (1) EP3824185B1 (en)
PL (1) PL3824185T3 (en)
WO (1) WO2020015899A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5614877A (en) * 1979-07-13 1981-02-13 Hitachi Ltd Closed type motor compressor
JPS63176676A (en) * 1987-01-14 1988-07-20 Sanyo Electric Co Ltd Silencing device for compressor
US5207564A (en) * 1992-04-21 1993-05-04 White Consolidated Industries, Inc. Compressor head and suction muffler for hermetic compressor
KR0156720B1 (en) * 1995-07-27 1999-03-20 김광호 Reciprocating compressor
AT8401U1 (en) 2005-03-31 2006-07-15 Acc Austria Gmbh REFRIGERANT COMPRESSOR
BRPI0505717B1 (en) * 2005-12-16 2020-03-10 Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda HERMETIC COMPRESSOR WITH INTERNAL THERMAL INSULATION
JP2009512804A (en) * 2006-09-27 2009-03-26 パナソニック株式会社 Compressor
EP3039292B1 (en) 2013-08-29 2017-11-01 Arçelik Anonim Sirketi Thermally improved reciprocating hermetic compressor
KR20160055497A (en) * 2014-11-10 2016-05-18 엘지전자 주식회사 Reciprocating compressor and a method for assembling the same

Also Published As

Publication number Publication date
EP3824185A1 (en) 2021-05-26
PL3824185T3 (en) 2022-08-22
WO2020015899A1 (en) 2020-01-23

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