WO2015127997A1 - Hermetic reciprocating mini compressor with reduced size - Google Patents

Hermetic reciprocating mini compressor with reduced size Download PDF

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Publication number
WO2015127997A1
WO2015127997A1 PCT/EP2014/054000 EP2014054000W WO2015127997A1 WO 2015127997 A1 WO2015127997 A1 WO 2015127997A1 EP 2014054000 W EP2014054000 W EP 2014054000W WO 2015127997 A1 WO2015127997 A1 WO 2015127997A1
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WO
WIPO (PCT)
Prior art keywords
holes
cylinder head
threaded
hermetic reciprocating
mini compressor
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/EP2014/054000
Other languages
French (fr)
Inventor
Ismail YESILAYDIN
Erhan Kasapoglu
Muhterem Ertoy
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/EP2014/054000 priority Critical patent/WO2015127997A1/en
Priority to TR2015/02331A priority patent/TR201502331A2/en
Publication of WO2015127997A1 publication Critical patent/WO2015127997A1/en
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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/122—Cylinder block
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125—Cylinder heads
    • 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 reciprocating mini compressor for use in a refrigeration appliance.
  • the present invention more particularly relates to a mounting facility for mounting a cylinder head and a valve assembly to a cylinder block of the hermetic reciprocating mini compressor.
  • a hermetic reciprocating mini compressor is usually arranged in a lower cabinet of the refrigerator.
  • this cabinet should at least possess a size and shape which suits the mini compressor, a corresponding volume of the refrigerator must be reserved for such cabinet. Consequently, the utilizable volume for the refrigeration compartments generally reduces. In order to gain more utilizable space it is necessary to reduce the size of the mini compressor. However, design limitations and operational constraints generally prevent attaining a significant reduction in the size of a mini compressor.
  • CN202811265 discloses a hermetic reciprocating compressor. This compressor has been provided with a compact cylinder block and a cylinder head.
  • a problem with the reduction of the size of the constituent parts of a hermetic reciprocating mini compressor is that such modifications generally result in a significant amount of reduction in the refrigeration capacity.
  • An objective of the present invention is to provide a hermetic reciprocating mini compressor which overcomes the aforementioned problems of the prior art and which increases the utilizable volume of a refrigeration appliance without compromising its refrigeration capacity.
  • the cylinder block has a flangeless mounting seat into which six or more than six threaded-holes are formed.
  • the cylinder head has a corresponding number of through-holes which are respectively formed so as to oppose the threaded-holes.
  • the cylinder head is mounted to the cylinder block by a corresponding number of small size bolts which are respectively inserted through the through-holes and screwed into the threaded-holes.
  • the flangeless mounting seat and cylinder head each has a circular outline which match each other. In this embodiment, at least six threaded-holes and opposing through-holes are evenly distributed. In an alternative version of this embodiment, the flangeless mounting seat and cylinder head each has an oblong outline.
  • the number of bolts used for mounting the cylinder head onto the cylinder block has been increased.
  • six or more than six small size bolts have been used.
  • the number of the bolts has been increased, the amount of torque applied to each small size bolt has been accordingly reduced.
  • the necessity of a utilizing a bulky and robust flange has been obviated.
  • the size and weight of the cylinder block has been reduced.
  • a size of the bolts and a weight of the bolts have been reduced in comparison to the conventional large size bolts without compromising the leak-tightness of the assembly.
  • a least six small size bolts have been utilized to mount the cylinder head and the valve assembly onto the cylinder block.
  • the leak-tightness of the assembly has been secured by utilizing at least six small size bolts to mount the cylinder head onto the cylinder block.
  • the clamping force acting on the cylinder head has become more uniform.
  • the cylinder chamber has been prevented from undue stress and the piston has been prevented from excessive wearing.
  • the leak-tightness of the assembly has been further improved.
  • the assembly process has been simplified and the overall cost of the hermetic reciprocating mini compressor has also been reduced.
  • Figure 1 – is a schematic partial perspective view of a hermetic reciprocating mini compressor according to an embodiment of the present invention
  • Figure 2 – is a schematic partial front view of the hermetic reciprocating mini compressor according to an embodiment of the present invention
  • Figure 3 – is a schematic partial side view of the hermetic reciprocating mini compressor according to an embodiment of the present invention.
  • the hermetic reciprocating mini compressor (1) is suitable for use in a refrigeration appliance which has limited machine-room volume (not shown).
  • the hermetic reciprocating mini compressor (1) comprises a cylinder block (2) which has a compression chamber, a cylinder head (3), and a valve assembly (4) which is arranged between the cylinder block (2) and the cylinder head (3) (Figs. 1 to 3).
  • the cylinder block (2) has a flangeless mounting seat (5) into which six or more than six threaded-holes are formed.
  • the cylinder head (3) has a corresponding number of through-holes which are respectively formed so as to oppose the threaded-holes.
  • the cylinder head (3) is mounted to the cylinder block (2) by a corresponding number of bolts (6) which are respectively inserted through the through-holes and screwed into the threaded-holes.
  • the flangeless mounting seat (5) of the cylinder block (2) and cylinder head (3) each has a substantially circular outline.
  • the threaded-holes and the opposing through-holes are evenly distributed along the circumferential edges (7a, 7b) of the flangeless mounting seat (5) and the cylinder head (3) respectively (Fig. 2).
  • the cylinder block (2) and the cylinder head (3) respectively have an even number of threaded-holes and opposing through-holes.
  • each pair of threaded-hole and opposing through-hole diametrically opposes a pair of threaded-hole and an opposing through-hole (Fig. 2).
  • the cylinder block (2) and the cylinder head (3) each has exactly six threaded-holes and six opposing through-holes respectively which are utilized for mounting the cylinder head (3) onto cylinder block (2).
  • three of the threaded-holes and opposing through-holes are respectively formed on a left side of the flangeless mounting seat (5) and the cylinder head (3).
  • the other three threaded-holes and opposing through-holes are respectively formed on a right side of the flangeless mounting seat (5) and the cylinder head (3).
  • said left side and said right side are defined with respect to an imaginary vertical line (z) which bisects the flangeless mounting seat (5) and the cylinder head (3).
  • the axes (Ax) of the threaded-holes and the opposing through-holes extend in a direction which is normal to a front surface of the flangeless mounting seat (5) (Figs. 2 and 3).
  • each bolt (6) is a hex flange bolt (6) (Figs. 1 to 3).
  • the bolts (6) used in the present invention have a size which is relatively smaller than the conventional bolts (6 ⁇ ) used in the conventional configuration where exactly four conventional bolts (6 ⁇ ) are utilized to fix the conventional cylinder head (3 ⁇ ) to the conventional cylinder block (2 ⁇ ).
  • the cylinder head (3) has a corresponding number of indentations (8) into which the through-holes are respectively formed (Figs. 1 to 3). Thereby, it becomes possible to use relatively shorter bolts (6).
  • the present invention also provides a refrigeration appliance which has a hermetic reciprocating mini compressor (1).
  • the size of the bolts (6) used for mounting the cylinder head (3) onto the cylinder block (2) has been reduced but their number has been increased to at least six or more.
  • a size and weight of the hermetic reciprocating mini compressor (1) has been reduced without compromising a leak-tightness and a refrigeration capacity thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The present invention relates to a hermetic reciprocating mini compressor (1) suitable for use in a refrigeration appliance. The hermetic reciprocating mini compressor (1) comprises a cylinder block (2) which has a compression chamber, a cylinder head (3) and a valve assembly (4) which is arranged between the cylinder block (2) and the cylinder head (3). In the hermetic reciprocating mini compressor (1) according to the present invention the cylinder block (2) has a flangeless mounting seat (5) into which six or more than six threaded-holes are formed. The cylinder head (3) has a corresponding number of through-holes which are respectively formed so as to oppose the threaded-holes. The cylinder head (3) is mounted to the cylinder block (2) by a corresponding number of small size bolts (6) which are respectively inserted through the through-holes and screwed into the threaded-holes.

Description

HERMETIC RECIPROCATING MINI COMPRESSOR WITH REDUCED SIZE
The present invention relates to a hermetic reciprocating mini compressor for use in a refrigeration appliance. The present invention more particularly relates to a mounting facility for mounting a cylinder head and a valve assembly to a cylinder block of the hermetic reciprocating mini compressor.
A hermetic reciprocating mini compressor is usually arranged in a lower cabinet of the refrigerator. As this cabinet should at least possess a size and shape which suits the mini compressor, a corresponding volume of the refrigerator must be reserved for such cabinet. Consequently, the utilizable volume for the refrigeration compartments generally reduces. In order to gain more utilizable space it is necessary to reduce the size of the mini compressor. However, design limitations and operational constraints generally prevent attaining a significant reduction in the size of a mini compressor.
CN202811265 discloses a hermetic reciprocating compressor. This compressor has been provided with a compact cylinder block and a cylinder head.
A problem with the reduction of the size of the constituent parts of a hermetic reciprocating mini compressor is that such modifications generally result in a significant amount of reduction in the refrigeration capacity.
An objective of the present invention is to provide a hermetic reciprocating mini compressor which overcomes the aforementioned problems of the prior art and which increases the utilizable volume of a refrigeration appliance without compromising its refrigeration capacity.
This objective has been achieved by the hermetic reciprocating mini compressor according to the present invention as defined in claim 1 and the refrigeration appliance which has limited volume for a compressor in the machine-room according to the present invention as defined in claim 9. Further achievements have been attained by the subject-matters respectively defined in the dependent claims.
In the hermetic reciprocating mini compressor of the present invention, the cylinder block has a flangeless mounting seat into which six or more than six threaded-holes are formed. The cylinder head has a corresponding number of through-holes which are respectively formed so as to oppose the threaded-holes. The cylinder head is mounted to the cylinder block by a corresponding number of small size bolts which are respectively inserted through the through-holes and screwed into the threaded-holes.
In an embodiment, the flangeless mounting seat and cylinder head each has a circular outline which match each other. In this embodiment, at least six threaded-holes and opposing through-holes are evenly distributed. In an alternative version of this embodiment, the flangeless mounting seat and cylinder head each has an oblong outline.
In the present invention the number of bolts used for mounting the cylinder head onto the cylinder block has been increased. In particular, six or more than six small size bolts have been used. As the number of the bolts has been increased, the amount of torque applied to each small size bolt has been accordingly reduced. Thereby, the necessity of a utilizing a bulky and robust flange has been obviated. By virtue of the flangeless mounting seat, the size and weight of the cylinder block has been reduced. As the number of bolts has been increased, a size of the bolts and a weight of the bolts have been reduced in comparison to the conventional large size bolts without compromising the leak-tightness of the assembly. Thus, in the present invention, a least six small size bolts have been utilized to mount the cylinder head and the valve assembly onto the cylinder block. Despite of the reduction in the torque per bolt, the leak-tightness of the assembly has been secured by utilizing at least six small size bolts to mount the cylinder head onto the cylinder block. Moreover, due to the increased number of bolts the clamping force acting on the cylinder head has become more uniform. Thereby, the cylinder chamber has been prevented from undue stress and the piston has been prevented from excessive wearing. Hence, the leak-tightness of the assembly has been further improved. By the present invention, the assembly process has been simplified and the overall cost of the hermetic reciprocating mini compressor has also been reduced.
Additional advantages of the hermetic reciprocating mini compressor of the present invention and the refrigeration appliance of the present invention will become apparent with the detailed description of the embodiments with reference to the accompanying drawings in which:
Figure 1 – is a schematic partial perspective view of a hermetic reciprocating mini compressor according to an embodiment of the present invention,
Figure 2 – is a schematic partial front view of the hermetic reciprocating mini compressor according to an embodiment of the present invention,
Figure 3 – is a schematic partial side view of the hermetic reciprocating mini compressor according to an embodiment of the present invention.
The reference signs appearing on the drawings relate to the following technical features.
  1. Mini compressor
  2. Cylinder block
  3. Cylinder head
  4. Valve assembly
  5. Mounting seat
  6. Bolt
7a. Edge
7b. Edge
8. Indentation
9. Crank shaft
10. Pivot
11. Piston rod
The hermetic reciprocating mini compressor (1) is suitable for use in a refrigeration appliance which has limited machine-room volume (not shown). The hermetic reciprocating mini compressor (1) comprises a cylinder block (2) which has a compression chamber, a cylinder head (3), and a valve assembly (4) which is arranged between the cylinder block (2) and the cylinder head (3) (Figs. 1 to 3).
In the hermetic reciprocating mini compressor (1) according to the present invention, the cylinder block (2) has a flangeless mounting seat (5) into which six or more than six threaded-holes are formed. The cylinder head (3) has a corresponding number of through-holes which are respectively formed so as to oppose the threaded-holes. The cylinder head (3) is mounted to the cylinder block (2) by a corresponding number of bolts (6) which are respectively inserted through the through-holes and screwed into the threaded-holes.
In an embodiment, the flangeless mounting seat (5) of the cylinder block (2) and cylinder head (3) each has a substantially circular outline. In this embodiment, the threaded-holes and the opposing through-holes are evenly distributed along the circumferential edges (7a, 7b) of the flangeless mounting seat (5) and the cylinder head (3) respectively (Fig. 2).
In another embodiment, the cylinder block (2) and the cylinder head (3) respectively have an even number of threaded-holes and opposing through-holes. In this embodiment, each pair of threaded-hole and opposing through-hole diametrically opposes a pair of threaded-hole and an opposing through-hole (Fig. 2).
In another embodiment, the cylinder block (2) and the cylinder head (3) each has exactly six threaded-holes and six opposing through-holes respectively which are utilized for mounting the cylinder head (3) onto cylinder block (2).
In another embodiment, three of the threaded-holes and opposing through-holes are respectively formed on a left side of the flangeless mounting seat (5) and the cylinder head (3). The other three threaded-holes and opposing through-holes are respectively formed on a right side of the flangeless mounting seat (5) and the cylinder head (3). Herein, said left side and said right side are defined with respect to an imaginary vertical line (z) which bisects the flangeless mounting seat (5) and the cylinder head (3).
In another embodiment, the axes (Ax) of the threaded-holes and the opposing through-holes extend in a direction which is normal to a front surface of the flangeless mounting seat (5) (Figs. 2 and 3).
In another embodiment, each bolt (6) is a hex flange bolt (6) (Figs. 1 to 3). The bolts (6) used in the present invention have a size which is relatively smaller than the conventional bolts (6´) used in the conventional configuration where exactly four conventional bolts (6´) are utilized to fix the conventional cylinder head (3´) to the conventional cylinder block (2´).
In another embodiment, the cylinder head (3) has a corresponding number of indentations (8) into which the through-holes are respectively formed (Figs. 1 to 3). Thereby, it becomes possible to use relatively shorter bolts (6).
The present invention also provides a refrigeration appliance which has a hermetic reciprocating mini compressor (1).
In the present invention the size of the bolts (6) used for mounting the cylinder head (3) onto the cylinder block (2) has been reduced but their number has been increased to at least six or more. By virtue of the flangeless mounting seat (5) and the small size bolts (6), a size and weight of the hermetic reciprocating mini compressor (1) has been reduced without compromising a leak-tightness and a refrigeration capacity thereof.

Claims (9)

  1. A hermetic reciprocating mini compressor (1) suitable for use in a refrigeration appliance, comprising
    - a cylinder block (2) which has a compression chamber, a cylinder head (3), and a valve assembly (4) which is arranged between the cylinder block (2) and the cylinder head (3),
    characterized in that
    - the cylinder block (2) has a flangeless mounting seat (5) into which six or more than six threaded-holes are formed and
    - the cylinder head (3) has a corresponding number of through-holes which are respectively formed so as to oppose the threaded-holes, wherein the cylinder head (3) is mounted to the cylinder block (2) by a corresponding number of bolts (6) which are respectively inserted through the through-holes and screwed into the threaded-holes.
  2. The hermetic reciprocating mini compressor (1) according to claim 1, characterized in that the flangeless mounting seat (5) of the cylinder block (2) and cylinder head (3) each has a substantially circular outline, wherein the threaded-holes and the opposing through-holes are evenly distributed along the circumferential edges (7a, 7b) of the flangeless mounting seat (5) and the cylinder head (3) respectively.
  3. The hermetic reciprocating mini compressor (1) according to claim 1 or 2, characterized in that the cylinder block (2) and the cylinder head (3) respectively have an even number of threaded-holes and opposing through-holes, wherein each pair of threaded-hole and opposing through-hole diametrically opposes a pair of threaded-hole and opposing through-hole.
  4. The hermetic reciprocating mini compressor (1) according to any one of claims 1 to 3, characterized in that the cylinder block (2) and the cylinder head (3) each has six threaded-holes and six opposing through-holes respectively.
  5. The hermetic reciprocating mini compressor (1) according to claim 4, characterized in that three of the threaded-holes and opposing through-holes are respectively formed on a left side of the flangeless mounting seat (5) and the cylinder head (3) and the other three threaded-holes and opposing through-holes are respectively formed on a right side of the flangeless mounting seat (5) and the cylinder head (3) with respect to an imaginary vertical line (z) which bisects the flangeless mounting seat (5) and the cylinder head (3) into said left side and said right side.
  6. The hermetic reciprocating mini compressor (1) according to any one of claims 1 to 5, characterized in that the axes (Ax) of the threaded holes and the opposing through-holes extend in a direction which is normal to a front surface of the flangeless mounting seat (5).
  7. The hermetic reciprocating mini compressor (1) according to any one of claims 1 to 6, characterized in that each bolt (6) is a hex flange bolt (6).
  8. The hermetic reciprocating mini compressor (1) according to any one of claims 1 to 6, characterized in that the cylinder head (3) has a corresponding number of indentations (8) into which the through-holes are respectively formed.
  9. A refrigeration appliance comprising the hermetic reciprocating mini compressor (1) according to any one of claims 1 to 8.
PCT/EP2014/054000 2014-02-28 2014-02-28 Hermetic reciprocating mini compressor with reduced size Ceased WO2015127997A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2014/054000 WO2015127997A1 (en) 2014-02-28 2014-02-28 Hermetic reciprocating mini compressor with reduced size
TR2015/02331A TR201502331A2 (en) 2014-02-28 2015-02-27 DIMENSIONED HERMETIC PISTON MINI COMPRESSOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/054000 WO2015127997A1 (en) 2014-02-28 2014-02-28 Hermetic reciprocating mini compressor with reduced size

Publications (1)

Publication Number Publication Date
WO2015127997A1 true WO2015127997A1 (en) 2015-09-03

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Family Applications (1)

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PCT/EP2014/054000 Ceased WO2015127997A1 (en) 2014-02-28 2014-02-28 Hermetic reciprocating mini compressor with reduced size

Country Status (2)

Country Link
TR (1) TR201502331A2 (en)
WO (1) WO2015127997A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4194695A1 (en) * 2021-12-07 2023-06-14 Arçelik Anonim Sirketi A hermetic compressor with improved vibration tube assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020039531A1 (en) * 2000-09-29 2002-04-04 Yujiro Morita Refrigerant compressors
EP1452737A1 (en) * 2003-02-25 2004-09-01 Copeland Corporation Suction reed valve for a compressor
US20120090461A1 (en) * 2010-10-14 2012-04-19 Panasonic Corporation Compressor
US20120237369A1 (en) * 2011-03-15 2012-09-20 Kabushiki Kaisha Toyota Jidoshokki Cylinder block of piston-type compressor and method for manufacturing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020039531A1 (en) * 2000-09-29 2002-04-04 Yujiro Morita Refrigerant compressors
EP1452737A1 (en) * 2003-02-25 2004-09-01 Copeland Corporation Suction reed valve for a compressor
US20120090461A1 (en) * 2010-10-14 2012-04-19 Panasonic Corporation Compressor
US20120237369A1 (en) * 2011-03-15 2012-09-20 Kabushiki Kaisha Toyota Jidoshokki Cylinder block of piston-type compressor and method for manufacturing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4194695A1 (en) * 2021-12-07 2023-06-14 Arçelik Anonim Sirketi A hermetic compressor with improved vibration tube assembly

Also Published As

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