EP1604114A2 - A compressor - Google Patents

A compressor

Info

Publication number
EP1604114A2
EP1604114A2 EP04721059A EP04721059A EP1604114A2 EP 1604114 A2 EP1604114 A2 EP 1604114A2 EP 04721059 A EP04721059 A EP 04721059A EP 04721059 A EP04721059 A EP 04721059A EP 1604114 A2 EP1604114 A2 EP 1604114A2
Authority
EP
European Patent Office
Prior art keywords
suction
cylinder
compressor
valve
sheet
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.)
Granted
Application number
EP04721059A
Other languages
German (de)
French (fr)
Other versions
EP1604114B1 (en
Inventor
Atilla Arcelik Anonim Sirketi KAYA
Sitki Arcelik Anonim Sirketi BICER
Serkan Arcelik Anonim Sirketi KARA
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 EP1604114A2 publication Critical patent/EP1604114A2/en
Application granted granted Critical
Publication of EP1604114B1 publication Critical patent/EP1604114B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates
    • 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
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber

Definitions

  • This invention relates to a compressor comprising a valve plate made of different materials, which are used in household appliances particularly in refrigerators.
  • the object of this invention is to provide a compressor for household appliances and particularly refrigerators comprising a valve plate for minimizing the noise by using different materials without reducing its function.
  • Figure 1 - is a schematic cross sectional side view of a compressor.
  • Figure 2 - is a perspective view of a valve plate assembly.
  • Figure 3 - is a three dimensional view of a valve plate comprising a damper.
  • Figure 4 - is an exploded view of a piston, a gasket, a suction valve sheet, a valve plate, an exhaust, a stop member and more than one pin.
  • Figure 5 - is an exploded view of more than one gasket, a suction valve sheet, a damper, a frame, an exhaust valve sheet, a stop member, more than one pin, suction muffler, cylinder head and more than one fastener.
  • the circulation of the cycle fluid is provided by means of a reciprocating hermetic compressor (1).
  • the cycle fluid is used as a cooling gas.
  • the compressor (1) comprises one or more casing (7) holding the components, a cylinder (8) in the casing (7) for pumping the cooling gas, a piston (9) on the cylinder for compressing the cooling gas into the cylinder opening, a crank (10) for transferring the motion of the motor, a piston rod (11) transferring the motion from the crank (10) to the piston (9), a suction muffler (12) preferably made of plastic material for allowing the cooling gas to reach at the cylinder (8) area before being heated and minimizing the noise which may be caused by the cooling gas, a cylinder head (13) connecting the suction muffler (12) and the cylinder (8), a valve plate (2) making a rigid and tight connection between the cylinder (8) and the cylinder head (13) and allowing the suction and compression of the cycle fluid, a suction valve sheet (3) on
  • Naive plate (2) comprises a frame (6) made of preferably metal material and resistant to the axial loads, and a damper (5) in the frame (6) made of preferably a rigid plastic material for minimizing the vibration and the noise when the suction valve sheet (3) and exhaust valve sheet (4) strikes the top of the valve plate (2).
  • the frame (6) and the damper (5) are attached to each other in an intermeshing way and, exhaust and suction trepans are provided with a plane form by means of grinding operation.
  • the damper (5) has a size bigger than the diameter of the cylinder (8) to cover the cylinder and a position to allow the connection of the frame (6) to the cylinder (8) and the cylinder head (13).
  • the damper (5) is pressed on the valve plate (2) by means of the injection method following the formation of the frame (6) from sinter or thin plate material.
  • exhaust and suction trepans are provided with a plane form preferably through grinding operation.
  • dampers (5) which are classified according to their thickness by measuring the progress of the piston (9) are used instead of the suction gasket (16) used for reducing the clearance space by optimizing the part of the piston (9) which is also known as the progress of the piston (9) projecting from the front surface of the cylinder (8).
  • the use of the classified suction gasket (16) is not needed.
  • the use of a suction gasket (16) having a fixed thickness is sufficient thereby reducing the cost of the suction gasket (16) and minimizing the variability in the cooling capacity caused by the variability in the thickness of the suction gasket (16) and the possibility of the attachment of a suction gasket (16) having an unacceptable thickness.
  • the (2) of the compressor (1) comprises a suction sheet housing (50), a suction valve sheet (51) having a suitable form for the suction sheet housing (50) and one or more pins (52) having preferably an elliptic form for fixing the suction valve sheet (51) to the suction sheet housing (50) and to the valve plate (2) in a vertical direction and preventing its rotation to the left or right direction around the axis around which it is fixed.
  • the suction gasket (16) comprises a pin housing (53) having a suitable form for preventing level differences which, may be caused by the pin (52).
  • the suction valve sheet (51) is in a damper (5), which is bigger than the cylinder (8) and fixed by means of the pin (14). Thus it can be fixed in all directions only by a pin (14).
  • a damper (5) having less thickness than the valve plate (2) is used with respect to the progress of the piston (9). Therefore the distance between the piston (9) and the suction valve sheet (3) is maintained.
  • vibration and noise caused by the strike of the sheets (3, 4) preferably made of metal material to the valve table (2) preferably made of metal material like sinter or thin plate, are minimized.

Landscapes

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

Abstract

This invention relates to a compressor (1) used in household appliances particularly in refrigerators comprising a valve plate (2) made of different materials for minimizing the noise without decreasing the performance of the function.

Description

A COMPRESSOR
This invention relates to a compressor comprising a valve plate made of different materials, which are used in household appliances particularly in refrigerators.
In state of art, the most substantial source of noise in reciprocating hermetic compressors particularly used in refrigerators is the movement of the valve sheet during the suction and compression periods. For instance, suction and exhaust sheets made of steel used on the valve plates made of sinter or sheet metal produces high level of noise as a result of the strikes at high speeds among the suction sheet, exhaust sheet and metal valve during the suction and compression periods.
In known techniques, International Patent Application O0171189 defines the use of a pipe for the improvement of the disorders during the opening and closing of the suction sheet and reduction of the noise caused by thereof.
The object of this invention is to provide a compressor for household appliances and particularly refrigerators comprising a valve plate for minimizing the noise by using different materials without reducing its function.
The compressor realized in order to attain above mentioned objects of the present invention has been illustrated in the attached drawings, wherein;
Figure 1 - is a schematic cross sectional side view of a compressor. Figure 2 - is a perspective view of a valve plate assembly. Figure 3 - is a three dimensional view of a valve plate comprising a damper. Figure 4 - is an exploded view of a piston, a gasket, a suction valve sheet, a valve plate, an exhaust, a stop member and more than one pin. Figure 5 - is an exploded view of more than one gasket, a suction valve sheet, a damper, a frame, an exhaust valve sheet, a stop member, more than one pin, suction muffler, cylinder head and more than one fastener.
The components shown in the figures have been enumerated as below;
1. Compressor
2. Valve plate
3. , 51, Suction valve sheet 4. Exhaust valve sheet
5. Damper
6. Frame
7. Casing
8. Cylinder 9. Piston
10. Crank
11. Piston rod
12. Suction muffler
13. Cylinder head 14. , 52, Pin
15. Stop member
16. Suction gasket
17. Exhaust gasket
18. Fastener 50. Suction sheet housing
53. Pin housing
The circulation of the cycle fluid, which is used for cooling in household appliances particularly refrigerators, is provided by means of a reciprocating hermetic compressor (1). In preferred embodiment the cycle fluid is used as a cooling gas. The compressor (1) comprises one or more casing (7) holding the components, a cylinder (8) in the casing (7) for pumping the cooling gas, a piston (9) on the cylinder for compressing the cooling gas into the cylinder opening, a crank (10) for transferring the motion of the motor, a piston rod (11) transferring the motion from the crank (10) to the piston (9), a suction muffler (12) preferably made of plastic material for allowing the cooling gas to reach at the cylinder (8) area before being heated and minimizing the noise which may be caused by the cooling gas, a cylinder head (13) connecting the suction muffler (12) and the cylinder (8), a valve plate (2) making a rigid and tight connection between the cylinder (8) and the cylinder head (13) and allowing the suction and compression of the cycle fluid, a suction valve sheet (3) on a side of the valve table, preferably on the side connected to the cylinder head (13) for allowing the suction of the fluids into the cylinder (8), an exhaust valve sheet (4) on a side of the valve table, preferably on the side connected to the cylinder (8) for allowing the discharge of the fluids in the cylinder (8), a stop member (15) preferably having the same form with the exhaust valve sheet (4) preventing possible gas leakages which may be caused by the breaking of the exhaust valve sheet (4) or disability of the opening and closing of the said exhaust valve sheet (4) due to the high pressure on the exhaust valve sheet (4), one or more pins (14) having a rectangular or elliptic form for fixing the exhaust valve sheet (4) to the stop member (15) and the valve plate (2) in a vertical direction and preventing its rotation to the left or right direction around the axis around which it is fixed, one or more suction gaskets (16) for sealing between the suction valve sheet (3) and the cylinder (8), one or more exhaust gaskets (17) for sealing between the suction muffler (12) and the valve plate (2) and one or more fasteners (18) like screws for fixing the valve plate (1).
Naive plate (2) comprises a frame (6) made of preferably metal material and resistant to the axial loads, and a damper (5) in the frame (6) made of preferably a rigid plastic material for minimizing the vibration and the noise when the suction valve sheet (3) and exhaust valve sheet (4) strikes the top of the valve plate (2).
In the embodiment which is the subject of the invention, the frame (6) and the damper (5) are attached to each other in an intermeshing way and, exhaust and suction trepans are provided with a plane form by means of grinding operation.
Particularly in the parts where there are connections comprising axial and radial loads like clinch and screw hole, frame (6) and damper (5) are not used due to the rigid material. Similarly whereas the damper (5) is used, the frame (6) is not used in the parts where the valve sheets strike by the oscillation movements for damping the noise. Furthermore it has a form and position for separating the frame (6) and the damper (5) due to the high discharge pressures in the system. In a preferred embodiment of the invention, the damper (5) has a size bigger than the diameter of the cylinder (8) to cover the cylinder and a position to allow the connection of the frame (6) to the cylinder (8) and the cylinder head (13).
In another embodiment of the invention, the damper (5) is pressed on the valve plate (2) by means of the injection method following the formation of the frame (6) from sinter or thin plate material. In addition, exhaust and suction trepans are provided with a plane form preferably through grinding operation.
In another embodiment of the invention, dampers (5) which are classified according to their thickness by measuring the progress of the piston (9) are used instead of the suction gasket (16) used for reducing the clearance space by optimizing the part of the piston (9) which is also known as the progress of the piston (9) projecting from the front surface of the cylinder (8).
Thanks to this operation during the assembly process of the compressor (1), the use of the classified suction gasket (16) is not needed. The use of a suction gasket (16) having a fixed thickness is sufficient thereby reducing the cost of the suction gasket (16) and minimizing the variability in the cooling capacity caused by the variability in the thickness of the suction gasket (16) and the possibility of the attachment of a suction gasket (16) having an unacceptable thickness.
In this embodiment, the damper (5) which is thinner than the valve plate
(2) of the compressor (1) comprises a suction sheet housing (50), a suction valve sheet (51) having a suitable form for the suction sheet housing (50) and one or more pins (52) having preferably an elliptic form for fixing the suction valve sheet (51) to the suction sheet housing (50) and to the valve plate (2) in a vertical direction and preventing its rotation to the left or right direction around the axis around which it is fixed. The suction gasket (16) comprises a pin housing (53) having a suitable form for preventing level differences which, may be caused by the pin (52).
In this embodiment, the suction valve sheet (51) is in a damper (5), which is bigger than the cylinder (8) and fixed by means of the pin (14). Thus it can be fixed in all directions only by a pin (14). A damper (5) having less thickness than the valve plate (2) is used with respect to the progress of the piston (9). Therefore the distance between the piston (9) and the suction valve sheet (3) is maintained.
In the compressor (1) which is the subject of the invention, vibration and noise caused by the strike of the sheets (3, 4) preferably made of metal material to the valve table (2) preferably made of metal material like sinter or thin plate, are minimized.

Claims

1. A compressor (1) used in household appliances preferably in refrigerators comprising a cylinder (8) for pumping the cooling gas, a piston (9) on the cylinder for compressing the cooling gas into the cylinder opening, a suction muffler (12) preferably made of plastic material for allowing the cooling gas to reach at the cylinder (8) area before being heated and minimizing the noise which may be caused by the cooling gas, a cylinder head (13) connecting the suction muffler (12) and the cylinder (8), a valve plate (2) making a rigid and tight connection between the cylinder (8) and the cylinder head (13) and allowing the suction and compression of the cycle fluid, a suction valve sheet (3) on a side of the valve table, preferably on the side connected to the cylinder head (13) for allowing the suction of the fluids into the cylinder (8) and an exhaust valve sheet (4) on a side of the valve table, preferably on the side connected to the cylinder (8) for allowing the discharge of the fluids in the cylinder (8) characterized by a valve plate (2) comprising a frame (6) made of preferably metal material and resistant to the axial loads, and a damper (5) in the frame (6) made of preferably a rigid plastic material for minimizing the vibration and the noise when the suction valve sheet (3) and exhaust valve sheet (4) strikes the top of the valve plate (2).
2. A compressor (1) as defined in Claim 1 characterized by a valve plate (2) comprising a frame (6) and a damper (5) which are attached to each other in an intermeshing way and exhaust and suction trepans of which are provided with a plane form by means of grinding operation.
3. A compressor (1) as defined in Claim 1 and 2 characterized by a valve plate (2) comprising a frame (6) made of rigid material particularly in the parts where there are connections having axial and radial loads like clinch and screw hole.
4. A compressor (1) as defined in Claim 1 to 3 characterized by a valve plate (2) comprising a damper (5) in the parts where the valve sheets strike by the oscillation movements for damping the noise.
5. A compressor (1) as defined in Claim 1 to 4 characterized by a valve plate (2) comprising a damper (5) having a size bigger than the diameter of the cylinder (8) and a frame (6) having a form and a position allowing the connection of the frame (6) to the cylinder (8) and the cylinder head (13).
6. A compressor (1) as defined in Claim 1, 3, 4 and 5 characterized by a valve plate (2) which is formed by the damper (5) pressed on the frame (6) made of sinter or thin plate material by means of the injection method and exhaust and suction trepans of which are provided with a plane form preferably through grinding operation.
7. A compressor (1) as defined in Claim 1 and 2 characterized by a valve plate (2) comprising dampers (5) which are classified according to their thickness by measuring the progress of the piston (9) instead of the suction gasket (16) used for reducing the clearance space by optimizing the part of the piston (9) which is also known as the progress of the piston (9) projecting from the front surface of the cylinder (8).
8. A compressor (1) as defined in any of the preceding Claims characterized by a stop member (15) preferably having the same form with the exhaust valve sheet (4) preventing possible gas leakages which may be caused by the breaking of the exhaust valve sheet (4) or disability of the opening and closing of the said exhaust valve sheet (4) due to the high pressure on the exhaust valve sheet (4) and one or more pins (14) having a rectangular or elliptic form for fixing the exhaust valve sheet (4) to the stop member (15) and the valve plate (2) in a vertical direction and preventing its rotation to the left or right direction around the axis around which it is fixed.
9. A compressor (1) as defined in any of the preceding Claims characterized by a suction sheet housing (50) which has less thickness than the valve plate (2), on the damper (5), , a suction valve sheet (51) having a suitable form for the suction sheet housing (50) and one or more pins (52) having preferably an elliptic form for fixing the suction valve sheet (51) to the suction sheet housing (50) and to the valve plate (2) in a vertical direction and preventing its rotation to the left or right direction around the axis around which it is fixed.
10. A compressor (1) as defined in Claim 9 characterized by a suction gasket (16) comprising a pin housing (53) having a suitable form for the pin (52) for preventing the level differences which may be caused by the pin (52).
EP04721059.6A 2003-03-17 2004-03-16 A compressor Expired - Lifetime EP1604114B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
TR200300347 2003-03-17
TR200300347 2003-03-17
PCT/TR2004/000017 WO2004083634A2 (en) 2003-03-17 2004-03-16 A compressor

Publications (2)

Publication Number Publication Date
EP1604114A2 true EP1604114A2 (en) 2005-12-14
EP1604114B1 EP1604114B1 (en) 2017-12-13

Family

ID=33029200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04721059.6A Expired - Lifetime EP1604114B1 (en) 2003-03-17 2004-03-16 A compressor

Country Status (3)

Country Link
EP (1) EP1604114B1 (en)
TR (2) TR201716552T3 (en)
WO (1) WO2004083634A2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62218683A (en) * 1986-03-18 1987-09-26 Toshiba Corp Rotary compressor
EP0346285B1 (en) * 1988-06-09 1992-04-29 GebràœDer Sulzer Aktiengesellschaft Valve arrangement
KR0175891B1 (en) 1995-07-29 1999-10-01 윤종용 compressor
GB0006978D0 (en) 2000-03-22 2000-05-10 Arctic Circle Limited A valve assembly with damper means

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004083634A2 *

Also Published As

Publication number Publication date
EP1604114B1 (en) 2017-12-13
WO2004083634A2 (en) 2004-09-30
TR200502345T1 (en) 2005-10-21
TR201716552T3 (en) 2017-12-21
WO2004083634A3 (en) 2004-10-28

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