WO2013182408A1 - A compressor comprising a cylinder head - Google Patents

A compressor comprising a cylinder head Download PDF

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Publication number
WO2013182408A1
WO2013182408A1 PCT/EP2013/060319 EP2013060319W WO2013182408A1 WO 2013182408 A1 WO2013182408 A1 WO 2013182408A1 EP 2013060319 W EP2013060319 W EP 2013060319W WO 2013182408 A1 WO2013182408 A1 WO 2013182408A1
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WO
WIPO (PCT)
Prior art keywords
cylinder head
compressor
cover
chamber
cylinder
Prior art date
Application number
PCT/EP2013/060319
Other languages
French (fr)
Inventor
Ersin Donmez
Ahmet Refik Ozdemir
Hakan Tunca
Original Assignee
Arcelik Anonim Sirketi
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 Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to ES13723788.9T priority Critical patent/ES2585729T3/en
Priority to EP13723788.9A priority patent/EP2859235B1/en
Priority to SI201330244A priority patent/SI2859235T1/en
Priority to CN201380029641.3A priority patent/CN104583593B/en
Priority to BR112014030493A priority patent/BR112014030493A2/en
Publication of WO2013182408A1 publication Critical patent/WO2013182408A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/0027Pulsation and noise damping means
    • F04B39/0033Pulsation and noise damping means with encapsulations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125Cylinder heads

Definitions

  • the present invention relates to a compressor used in cooling devices and comprising a cylinder head.
  • the refrigerant reaches the cylinder by passing through the muffler and suction chamber of the cylinder head.
  • the refrigerant with increased pressure and temperature is poured into the exhaust chamber of the cylinder head after leaving the cylinder.
  • the delivery of the refrigerant from the suction chamber to the cylinder is realized by means of the inlet passage situated on the valve table.
  • the suction valve leaf located in front of the inlet passage opens up the front of the inlet passage by moving towards the cylinder with the effect of pressure difference.
  • the refrigerant passes from the suction chamber to the cylinder.
  • the refrigerant flows back towards the suction chamber by impacting the suction valve leaf.
  • the refrigerant contained in the exhaust chamber while the exhaust valve leaf covers the front of the discharge passage prematurely, flows back into the cylinder by impacting the exhaust valve leaf. Sound is generated due to movements of the refrigerant in opposite directions inside the cylinder, towards the exhaust chamber and towards the cylinder (the movement of refrigerant flowing back by impacting the valve leaf).
  • the refrigerant compressed in the cylinder and delivered to the exhaust chamber increases the temperature at the interior of the suction chamber.
  • the increased heat in the suction chamber disperses outside the suction chamber. Accordingly, the compressor efficiency and performance are adversely affected.
  • JP60065291 a compressor is described having a U-shaped protector that is disposed on the cylinder head.
  • the aim of the present invention is the realization of a compressor wherein the sound and heat generated during the flow of the refrigerant are attenuated.
  • the compressor realized in order to attain the aims of the present invention and explicated in the attached claims, comprises a casing carrying the components therein, a cylinder wherein the compression process is performed, a cylinder head disposed on the cylinder, a valve table situated between the cylinder and the cylinder head, at least one exhaust chamber below the cylinder head wherein the pumped circulating fluid fills, at least one suction chamber wherein the sucked circulating fluid fills and at least one cover disposed above the cylinder head.
  • the exhaust chamber and the suction chamber are disposed side by side below the cylinder head.
  • the compressor of the present invention furthermore comprises at least one insulation chamber situated between the cylinder head and the cover.
  • the refrigerant flows back by impacting the valve leaf in the case the valve leaf situated on the valve table is closed.
  • the insulation chamber By means of the insulation chamber, the noise, generated with the mixing of the refrigerant moving towards the valve leaf and the refrigerant flowing back by impacting the valve leaf, is prevented from dispersing outside the cover and insulation is provided.
  • the cover is produced from a material with low heat and/or sound conductivity.
  • the cover disposed on the cylinder head provides heat and sound insulation.
  • the cylinder head is produced from plastic material. Production of the cylinder head from plastic material minimizes heat transmission between the suction chamber and the exhaust chamber.
  • the cover is produced from metal material.
  • a cover having a sturdy structure is disposed on the cylinder head. The cover applies pressure on the cylinder head by means of the surfaces it contacts and prevents a distance from remaining between the cylinder head and the valve table.
  • the insulation chamber is fixed on the cylinder head by snap-fitting method.
  • a material having low coefficient of insulation is placed into the insulation chamber.
  • sound and heat are prevented from dispersing outside the cover.
  • the insulation chamber is formed as a recess arranged on the cylinder head.
  • the temperature of the compressed refrigerant increases during the delivery of the refrigerant from the cylinder to the exhaust chamber. As the compressed refrigerant flows into the exhaust chamber, the temperature inside the exhaust chamber also increases.
  • the heat is provided to be insulated by means of the insulation chamber being disposed on the exhaust chamber.
  • the insulation chamber is situated between the walls that separate the suction chamber from the exhaust chamber.
  • the insulation chamber is shaped as a recess. Thus, heat exchange between the suction chamber and the exhaust chamber is prevented.
  • the compressor comprises at least one sealing element that surrounds the insulation chamber. Insulation efficiency is increased between the cylinder head and the cover by preventing refrigerant and heat from entering the insulation chamber.
  • the compressor comprises at least one suction muffler having a hollow volume that provides the attenuation of the noise generated during the pumping of the refrigerant fluid, at least one headpiece mounted on the suction muffler and the cylinder head having at least one first housing wherein the suction muffler is disposed.
  • the suction muffler with the headpiece mounted thereon is placed into the first housing.
  • the suction muffler placed into the first housing is situated between the cylinder head and the valve table.
  • the suction chamber is disposed to be adjacent to the exhaust chamber below the cylinder head.
  • the cover comprises at least one second housing wherein the suction muffler is situated.
  • the second housing is situated just above the first housing.
  • the shapes of the first housing and the second housing are almost the same.
  • the compressor comprises at least one extension that extends from the sides of the cover that surround the second housing and that is situated at least partially on the suction chamber when the cover is placed on the cylinder head.
  • the compressor comprises at least one recess wherein the exhaust chamber and the suction chamber are almost entirely situated.
  • the headpiece is placed into the second housing. Consequently, the suction chamber and the exhaust chamber are provided to be disposed between the cover and the valve table.
  • the compressor comprises the cylinder head having a flange located on at least one of its corners and the cover disposed on the cylinder head by being mounted to the flanges without contacting the outer walls of the exhaust chamber and/or the second housing.
  • the flange extends from the side of the exhaust chamber.
  • the compressor comprises at least one protrusion situated on the cover and which provides the cover to be attached to the cylinder head.
  • the protrusion has a shape matching that of the flange.
  • the cover is provided to be fixed to the cylinder head by the protrusion being fixed to the flange.
  • the cover is formed as a frame.
  • a compressor is realized that has an insulation chamber which provides the insulation of the sound and heat generated during refrigerant flow, preventing them from dispersing into the casing.
  • Figure 1 – is the cross-sectional view of a compressor.
  • Figure 2 – is the perspective view of a cylinder head, a cover and a suction muffler.
  • Figure 3 – is the exploded view of a cylinder head, a cover and a suction muffler.
  • Figure 4 – is the sideways cross-sectional view of the cylinder head, the cover and the suction muffler used in an embodiment of the present invention.
  • Figure 5 — is the sideways cross-sectional view of the cylinder head, the cover and the suction muffler used in another embodiment of the present invention.
  • Figure 6 — is the sideways view of the cylinder head, the cover and the suction muffler.
  • Figure 7 — is the perspective view of a cover.
  • Figure 8 – is the perspective view of a cover from a different angle.
  • Figure 9 – is the perspective view of a cylinder head.
  • Figure 10 – is the perspective view of a cylinder head from a different angle.
  • the compressor (1) comprises a casing (2) carrying the components therein, a cylinder (3) wherein the compression process is performed, a cylinder head (4) disposed on the cylinder (3), a valve table (5) situated between the cylinder (3) and the cylinder head (4), at least one exhaust chamber (6) disposed below the cylinder head (4) wherein the pumped circulating fluid fills, at least one suction chamber (7) wherein the sucked circulating fluid fills and at least one cover (8) disposed above the cylinder head (4) ( Figure 1).
  • the compressor (1) furthermore comprises a piston operating inside the cylinder (3), an inlet passage and a discharge passage arranged on the valve table (5), that provide the refrigerant fluid in the suction chamber (7) and the exhaust chamber (6) to enter into/exit from the cylinder (3), a suction valve leaf located on one side of the valve table (5), providing the refrigerant fluid to be sucked into the cylinder (3) by opening/closing the inlet passage during movement of the piston and an exhaust valve leaf located on the other side of the valve table (5), providing the refrigerant fluid to be discharged from the cylinder (3) by opening/closing the discharge passage during movement of the piston.
  • the suction and pumping of the refrigerant fluid from/to the cylinder (3) is performed by the movement of the piston.
  • the refrigerant fluid entering the cylinder (3) by means of the inlet passage on the valve table (5) and the opening/closing of the suction valve leaf reaches the desired pressure by being compressed.
  • the refrigerant fluid is delivered to the exhaust chamber (6) by means of the exhaust passage on the valve table (5) and the opening/closing of the exhaust valve leaf.
  • the compressor (1) of the present invention comprises at least one insulation chamber (9) situated between the cylinder head (4) and the cover (8).
  • the cover (8) almost entirely surrounds the outer wall of the cylinder head (4).
  • the shape of the cover (8) and the outer surface of the cylinder head (4) is almost the same.
  • the suction chamber (7) is disposed to be adjacent to the exhaust chamber (6) below the cylinder head (4).
  • the insulation chamber (9) By means of the insulation chamber (9), a distance remains between the cylinder head (4) and the cover (8). In the case the suction valve leaf is closed while the refrigerant is delivered from the suction chamber (7) towards the cylinder (3), the refrigerant flows back towards the suction chamber (7).
  • the temperature of the refrigerant compressed inside the cylinder (3) increases.
  • the refrigerant leaving the cylinder (3) passes into the exhaust chamber (6).
  • the temperature at the interior of the cylinder (3) containing compressed refrigerant and the exhaust chamber (6) also increases.
  • the increasing interior heat of the exhaust chamber (6) is prevented from dispersing into the casing (2) since the insulation chamber (9) provides insulation.
  • the insulation chamber (9) is vacuumed.
  • insulation effectiveness of the insulation chamber (9) is increased.
  • the cover (8) is produced from a material with low heat and/or sound conductivity.
  • the cylinder head (4) is produced from plastic material. Production of the cylinder head (4) from plastic material minimizes heat transmission between the suction chamber (7) and the exhaust chamber (6).
  • the cover (8) is produced from metal material.
  • rigidity of the cover (8) is increased and pressure is applied onto the cylinder head (4).
  • the cylinder head (4) and the suction chamber (7) are almost entirely covered by means of the cover (8).
  • refrigerant is prevented from leaking out of the suction chamber (7) and/or the exhaust chamber (6).
  • the cover (8) is mounted on the cylinder head (4) by snap-fitting method.
  • the cover (8) is provided to be seated tightly on the cylinder head (4).
  • the cover (8) is prevented from detaching from the cylinder head (4).
  • a material having low coefficient of insulation is placed into the insulation chamber (9).
  • noise originating from refrigerant flow is prevented from dispersing.
  • the increased heat inside the cylinder head (4) is prevented from dispersing outside.
  • the insulation chamber (9) is formed as a recess arranged on the cylinder head (4).
  • the cover (8) is prevented from entirely contacting the cylinder head (4) by means of the insulation chamber (9) and an empty space is provided to remain between the cylinder head (4) and the cover (8).
  • the insulation chamber (9) provides insulation between the cylinder head (4) and the cover (8). Furthermore, heat is provided to be insulated with the insulation chamber (9) being on the exhaust chamber (6) ( Figure 9, Figure 10).
  • the insulation chamber (9) is situated between the opposite walls that divide the inner volume of the cylinder head (4) into two, separating the suction chamber (7) from the exhaust chamber (6).
  • the insulation chamber (9) is shaped as a recess.
  • the pressure and temperature of the refrigerant compressed in the cylinder (3) increase.
  • the temperature of the exhaust chamber (6) increases due to the refrigerant passing from the cylinder (3) into the exhaust chamber (6).
  • insulation chamber (9) insulation is provided between the suction chamber (7) and the exhaust chamber (6) and the interior temperature of the suction chamber (7) is prevented from increasing.
  • the efficiency of the compressor (1) is improved ( Figure 4).
  • the compressor (1) comprises at least one sealing element (10) that surrounds the insulation chamber (9).
  • the refrigerant, heat etc. is prevented from entering the insulation chamber (9) by means of the sealing element (10) that surrounds the insulation chamber (9).
  • the insulation effectiveness between the cylinder head (4) and the cover (8) is increased ( Figure 4).
  • the compressor (1) comprises at least one suction muffler (11), having a hollow volume that provides the attenuation of the noise generated during pumping of the refrigerant fluid, at least one headpiece (12) mounted on the suction muffler (11) and wherein the suction chamber (7) is situated and the cylinder head (4) having at least one first housing (13) wherein the suction muffler (11) is disposed.
  • the suction chamber (7) is located under the headpiece (12).
  • the headpiece (12) is disposed on the suction muffler (11).
  • the headpiece (12) and the suction muffler (11) are mounted to the cylinder head (4) by means of the first housing (13).
  • the suction chamber (7) and the exhaust chamber (6) are situated side by side ( Figure 3, Figure 4, Figure 5).
  • the cover (8) comprises at least one second housing (14) wherein the headpiece (12) is placed.
  • the second housing (14) is situated above the first housing (13).
  • the headpiece (12) is placed inside the second housing (14) and the first housing (13).
  • the shapes of the second housing (14) and the first housing (13) are almost the same (Figure 3, Figure 10).
  • the compressor (1) comprises at least one extension (15) that extends from the sides of the cover (8) surrounding the second housing (14) and that is situated almost on the suction chamber (7) when the cover (8) is placed on the cylinder head (4).
  • the extension (15) is almost U-shaped.
  • the extension (15) allows heat exchange between the suction chamber (7) and the outside environment. Thus, the interior temperature of the suction chamber (7) is prevented from rising excessively.
  • the cover (8) comprises at least one recess (16) wherein the suction chamber (7) and/or the exhaust chamber (6) are almost entirely situated when the cover (8) is placed on the cylinder head (4).
  • the suction chamber (7) and the exhaust chamber (6) are disposed between the cover (8) and the valve table (5).
  • the cover (8) almost entirely surrounds the outer wall of the cylinder head (4). Consequently, the sound and noise occurring between the cylinder (3) and the cylinder head (4), generated by the refrigerant flowing in opposite directions within the same volume, are provided to be attenuated.
  • the exhaust chamber (6) the temperature of which rises while containing the high temperature refrigerant, is prevented from dispersing its heat into the casing (2) ( Figure 2, Figure 3, Figure 7, Figure 8).
  • the compressor (1) comprises the cylinder head (4) having a flange (17) located on at least one of its corners and the cover (8) disposed on the cylinder head (4) by being attached to the flanges (17) without contacting the exhaust chamber (6) outer walls and/or the second housing (14).
  • the flange (17) extends from the sides of the exhaust chamber (6).
  • the cover (8) contacts the cylinder head (4) only by means of the flanges (17).
  • the cylinder head (4) and the cover (8) are situated on the valve table (5) one within the other.
  • the cover (8) is in the form of a frame having a hole through which the exhaust chamber (6) and some portion of the suction chamber (7) passes. Pressure is applied on the cylinder head (4) by the cover (8). Thus, the cover (8) is prevented from detaching from the cylinder head (4).
  • the compressor (1) comprises at least one protrusion (18) situated on the cover (8) and which provides the cover (8) to be attached to the cylinder head (4).
  • the protrusion (18) has a shape matching that of the flange (17).
  • the cover (8) is provided to be fixed to the cylinder head (4) with the protrusion (18) being fixed to the flange (17).
  • a compressor (1) is realized having the insulation chamber (9) that provides a distance between the cylinder head (4) and the cover (8) thereby insulating the increase in heat and sound originating from refrigerant flow during passage of the refrigerant between the cylinder (3) and the suction chamber (7) or the exhaust chamber (6). Furthermore, by means of the insulation chamber (9), heat exchange between the suction chamber (7) and the exhaust chamber (6) is minimized and efficiency of the compressor (1) is increased.
  • the cover (8) applies pressure on the cylinder head (4) and leakage of refrigerant from the suction chamber (7) and the exhaust chamber (6) situated under the cylinder head (4) is prevented.

Abstract

A compressor (1) comprising: a casing (2) carrying the components therein, a cylinder (3), a cylinder head (4) having at least one exhaust chamber (6) and a suction chamber (7), a valve plate (5) situated between the cylinder (3) and the cylinder head (4). At least a cover (8) is mounted on the cylinder head (4), which forms at least one insulation chamber (9) situated between the cylinder head (4) and the cover (8). Said insulation chamber (9) attenuates the noise generated by the compressor and isolates thermically the exhaust chamber (6) from the suction chamber (7).

Description

A COMPRESSOR COMPRISING A CYLINDER HEAD
The present invention relates to a compressor used in cooling devices and comprising a cylinder head. In the hermetic compressors used in domestic type refrigerators, the refrigerant reaches the cylinder by passing through the muffler and suction chamber of the cylinder head. At the end of the compression process, the refrigerant with increased pressure and temperature is poured into the exhaust chamber of the cylinder head after leaving the cylinder. The delivery of the refrigerant from the suction chamber to the cylinder is realized by means of the inlet passage situated on the valve table. The suction valve leaf located in front of the inlet passage opens up the front of the inlet passage by moving towards the cylinder with the effect of pressure difference. Thus, the refrigerant passes from the suction chamber to the cylinder. However, in the case the suction valve leaf covers the front of the inlet passage, the refrigerant flows back towards the suction chamber by impacting the suction valve leaf. Similarly, the refrigerant, contained in the exhaust chamber while the exhaust valve leaf covers the front of the discharge passage prematurely, flows back into the cylinder by impacting the exhaust valve leaf. Sound is generated due to movements of the refrigerant in opposite directions inside the cylinder, towards the exhaust chamber and towards the cylinder (the movement of refrigerant flowing back by impacting the valve leaf).
Furthermore, the refrigerant compressed in the cylinder and delivered to the exhaust chamber increases the temperature at the interior of the suction chamber. The increased heat in the suction chamber disperses outside the suction chamber. Accordingly, the compressor efficiency and performance are adversely affected.
In the state of the art Japanese Patent Document No. JP60065291, a compressor is described having a U-shaped protector that is disposed on the cylinder head.
The aim of the present invention is the realization of a compressor wherein the sound and heat generated during the flow of the refrigerant are attenuated.
The compressor, realized in order to attain the aims of the present invention and explicated in the attached claims, comprises a casing carrying the components therein, a cylinder wherein the compression process is performed, a cylinder head disposed on the cylinder, a valve table situated between the cylinder and the cylinder head, at least one exhaust chamber below the cylinder head wherein the pumped circulating fluid fills, at least one suction chamber wherein the sucked circulating fluid fills and at least one cover disposed above the cylinder head. The exhaust chamber and the suction chamber are disposed side by side below the cylinder head.
The compressor of the present invention furthermore comprises at least one insulation chamber situated between the cylinder head and the cover. During passage of the refrigerant from the suction chamber to the cylinder or from the cylinder to the exhaust chamber, the refrigerant flows back by impacting the valve leaf in the case the valve leaf situated on the valve table is closed. By means of the insulation chamber, the noise, generated with the mixing of the refrigerant moving towards the valve leaf and the refrigerant flowing back by impacting the valve leaf, is prevented from dispersing outside the cover and insulation is provided.
In an embodiment of the present invention, the cover is produced from a material with low heat and/or sound conductivity. Thus, the cover disposed on the cylinder head provides heat and sound insulation.
In an embodiment of the present invention, the cylinder head is produced from plastic material. Production of the cylinder head from plastic material minimizes heat transmission between the suction chamber and the exhaust chamber.
In an embodiment of the present invention, the cover is produced from metal material. Thus, a cover having a sturdy structure is disposed on the cylinder head. The cover applies pressure on the cylinder head by means of the surfaces it contacts and prevents a distance from remaining between the cylinder head and the valve table.
In an embodiment of the present invention, the insulation chamber is fixed on the cylinder head by snap-fitting method.
In an embodiment of the present invention, a material having low coefficient of insulation is placed into the insulation chamber. Thus, sound and heat are prevented from dispersing outside the cover.
In an embodiment of the present invention, the insulation chamber is formed as a recess arranged on the cylinder head. The temperature of the compressed refrigerant increases during the delivery of the refrigerant from the cylinder to the exhaust chamber. As the compressed refrigerant flows into the exhaust chamber, the temperature inside the exhaust chamber also increases. The heat is provided to be insulated by means of the insulation chamber being disposed on the exhaust chamber.
In an embodiment of the present invention, the insulation chamber is situated between the walls that separate the suction chamber from the exhaust chamber. The insulation chamber is shaped as a recess. Thus, heat exchange between the suction chamber and the exhaust chamber is prevented.
In an embodiment of the present invention, the compressor comprises at least one sealing element that surrounds the insulation chamber. Insulation efficiency is increased between the cylinder head and the cover by preventing refrigerant and heat from entering the insulation chamber.
In an embodiment of the present invention, the compressor comprises at least one suction muffler having a hollow volume that provides the attenuation of the noise generated during the pumping of the refrigerant fluid, at least one headpiece mounted on the suction muffler and the cylinder head having at least one first housing wherein the suction muffler is disposed. The suction muffler with the headpiece mounted thereon is placed into the first housing. The suction muffler placed into the first housing is situated between the cylinder head and the valve table. The suction chamber is disposed to be adjacent to the exhaust chamber below the cylinder head.
In an embodiment of the present invention, the cover comprises at least one second housing wherein the suction muffler is situated. The second housing is situated just above the first housing. The shapes of the first housing and the second housing are almost the same.
In an embodiment of the present invention, the compressor comprises at least one extension that extends from the sides of the cover that surround the second housing and that is situated at least partially on the suction chamber when the cover is placed on the cylinder head.
In an embodiment of the present invention, the compressor comprises at least one recess wherein the exhaust chamber and the suction chamber are almost entirely situated. The headpiece is placed into the second housing. Consequently, the suction chamber and the exhaust chamber are provided to be disposed between the cover and the valve table.
In an embodiment of the present invention, the compressor comprises the cylinder head having a flange located on at least one of its corners and the cover disposed on the cylinder head by being mounted to the flanges without contacting the outer walls of the exhaust chamber and/or the second housing. The flange extends from the side of the exhaust chamber. Thus, a cavernous structure is formed between the cover and the cylinder head. By means of the insulation chamber, the still air between the cover and the cylinder head provides insulation and thus the efficiency of the compressor is improved.
In an embodiment of the present invention, the compressor comprises at least one protrusion situated on the cover and which provides the cover to be attached to the cylinder head. The protrusion has a shape matching that of the flange. The cover is provided to be fixed to the cylinder head by the protrusion being fixed to the flange.
In a derivative of this embodiment, the cover is formed as a frame.
By means of the present invention, a compressor is realized that has an insulation chamber which provides the insulation of the sound and heat generated during refrigerant flow, preventing them from dispersing into the casing.
The compressor realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
Figure 1 – is the cross-sectional view of a compressor.
Figure 2 – is the perspective view of a cylinder head, a cover and a suction muffler.
Figure 3 – is the exploded view of a cylinder head, a cover and a suction muffler.
Figure 4 – is the sideways cross-sectional view of the cylinder head, the cover and the suction muffler used in an embodiment of the present invention.
Figure 5 – is the sideways cross-sectional view of the cylinder head, the cover and the suction muffler used in another embodiment of the present invention.
Figure 6 – is the sideways view of the cylinder head, the cover and the suction muffler.
Figure 7 – is the perspective view of a cover.
Figure 8 – is the perspective view of a cover from a different angle.
Figure 9 – is the perspective view of a cylinder head..
Figure 10 – is the perspective view of a cylinder head from a different angle.
The elements illustrated in the figures are numbered as follows:
  1. Compressor
  2. Casing
  3. Cylinder
  4. Cylinder head
  5. Valve table
  6. Exhaust chamber
  7. Suction chamber
  8. Cover
  9. Insulation chamber
  10. Sealing element
  11. Suction muffler
  12. Headpiece
  13. First housing
  14. Second housing
  15. Extension
  16. Recess
  17. Flange
  18. Protrusion
The compressor (1) comprises a casing (2) carrying the components therein, a cylinder (3) wherein the compression process is performed, a cylinder head (4) disposed on the cylinder (3), a valve table (5) situated between the cylinder (3) and the cylinder head (4), at least one exhaust chamber (6) disposed below the cylinder head (4) wherein the pumped circulating fluid fills, at least one suction chamber (7) wherein the sucked circulating fluid fills and at least one cover (8) disposed above the cylinder head (4) (Figure 1).
The compressor (1) furthermore comprises a piston operating inside the cylinder (3), an inlet passage and a discharge passage arranged on the valve table (5), that provide the refrigerant fluid in the suction chamber (7) and the exhaust chamber (6) to enter into/exit from the cylinder (3), a suction valve leaf located on one side of the valve table (5), providing the refrigerant fluid to be sucked into the cylinder (3) by opening/closing the inlet passage during movement of the piston and an exhaust valve leaf located on the other side of the valve table (5), providing the refrigerant fluid to be discharged from the cylinder (3) by opening/closing the discharge passage during movement of the piston. The suction and pumping of the refrigerant fluid from/to the cylinder (3) is performed by the movement of the piston. The refrigerant fluid entering the cylinder (3) by means of the inlet passage on the valve table (5) and the opening/closing of the suction valve leaf reaches the desired pressure by being compressed. The refrigerant fluid is delivered to the exhaust chamber (6) by means of the exhaust passage on the valve table (5) and the opening/closing of the exhaust valve leaf.
The compressor (1) of the present invention comprises at least one insulation chamber (9) situated between the cylinder head (4) and the cover (8). The cover (8) almost entirely surrounds the outer wall of the cylinder head (4). The shape of the cover (8) and the outer surface of the cylinder head (4) is almost the same. The suction chamber (7) is disposed to be adjacent to the exhaust chamber (6) below the cylinder head (4). By means of the insulation chamber (9), a distance remains between the cylinder head (4) and the cover (8). In the case the suction valve leaf is closed while the refrigerant is delivered from the suction chamber (7) towards the cylinder (3), the refrigerant flows back towards the suction chamber (7). Similarly, in the case the exhaust valve leaf is closed during passage of the refrigerant from the cylinder (3) to the exhaust chamber (6), the refrigerant flows back to the cylinder (3). By means of the insulation chamber (9), insulation is provided and the noise, generated by the refrigerant flowing in opposite directions, is provided to be attenuated (Figure 2, Figure 3).
Furthermore, the temperature of the refrigerant compressed inside the cylinder (3) increases. The refrigerant leaving the cylinder (3) passes into the exhaust chamber (6). The temperature at the interior of the cylinder (3) containing compressed refrigerant and the exhaust chamber (6) also increases. The increasing interior heat of the exhaust chamber (6) is prevented from dispersing into the casing (2) since the insulation chamber (9) provides insulation.
In a derivative of this embodiment, the insulation chamber (9) is vacuumed. Thus, insulation effectiveness of the insulation chamber (9) is increased.
In an embodiment of the present invention, the cover (8) is produced from a material with low heat and/or sound conductivity. By means of the cover (8) providing sound and heat insulation, attenuation of increasing sound and heat inside the cylinder head (4) occurring during flow of the refrigerant fluid is improved.
In an embodiment of the present invention, the cylinder head (4) is produced from plastic material. Production of the cylinder head (4) from plastic material minimizes heat transmission between the suction chamber (7) and the exhaust chamber (6).
In another embodiment of the present invention, the cover (8) is produced from metal material. Thus, rigidity of the cover (8) is increased and pressure is applied onto the cylinder head (4). The cylinder head (4) and the suction chamber (7) are almost entirely covered by means of the cover (8). Thus, refrigerant is prevented from leaking out of the suction chamber (7) and/or the exhaust chamber (6).
In an embodiment of the present invention, the cover (8) is mounted on the cylinder head (4) by snap-fitting method. Thus, the cover (8) is provided to be seated tightly on the cylinder head (4). The cover (8) is prevented from detaching from the cylinder head (4).
In an embodiment of the present invention, a material having low coefficient of insulation is placed into the insulation chamber (9). Thus, during operation of the compressor (1) noise originating from refrigerant flow is prevented from dispersing. Furthermore, the increased heat inside the cylinder head (4) is prevented from dispersing outside.
In an embodiment of the present invention, the insulation chamber (9) is formed as a recess arranged on the cylinder head (4). When the cover (8) is placed on the cylinder head (4), the cover (8) is prevented from entirely contacting the cylinder head (4) by means of the insulation chamber (9) and an empty space is provided to remain between the cylinder head (4) and the cover (8). The insulation chamber (9) provides insulation between the cylinder head (4) and the cover (8). Furthermore, heat is provided to be insulated with the insulation chamber (9) being on the exhaust chamber (6) (Figure 9, Figure 10).
In a version of this embodiment, the insulation chamber (9) is situated between the opposite walls that divide the inner volume of the cylinder head (4) into two, separating the suction chamber (7) from the exhaust chamber (6). The insulation chamber (9) is shaped as a recess. The pressure and temperature of the refrigerant compressed in the cylinder (3) increase. The temperature of the exhaust chamber (6) increases due to the refrigerant passing from the cylinder (3) into the exhaust chamber (6). By means of the insulation chamber (9), insulation is provided between the suction chamber (7) and the exhaust chamber (6) and the interior temperature of the suction chamber (7) is prevented from increasing. Thus, the efficiency of the compressor (1) is improved (Figure 4).
In an embodiment of the present invention, the compressor (1) comprises at least one sealing element (10) that surrounds the insulation chamber (9). The refrigerant, heat etc. is prevented from entering the insulation chamber (9) by means of the sealing element (10) that surrounds the insulation chamber (9). Thus, the insulation effectiveness between the cylinder head (4) and the cover (8) is increased (Figure 4).
In an embodiment of the present invention, the compressor (1) comprises at least one suction muffler (11), having a hollow volume that provides the attenuation of the noise generated during pumping of the refrigerant fluid, at least one headpiece (12) mounted on the suction muffler (11) and wherein the suction chamber (7) is situated and the cylinder head (4) having at least one first housing (13) wherein the suction muffler (11) is disposed. The suction chamber (7) is located under the headpiece (12). The headpiece (12) is disposed on the suction muffler (11). The headpiece (12) and the suction muffler (11) are mounted to the cylinder head (4) by means of the first housing (13). The suction chamber (7) and the exhaust chamber (6) are situated side by side (Figure 3, Figure 4, Figure 5).
In an embodiment of the present invention, the cover (8) comprises at least one second housing (14) wherein the headpiece (12) is placed. The second housing (14) is situated above the first housing (13). The headpiece (12) is placed inside the second housing (14) and the first housing (13). The shapes of the second housing (14) and the first housing (13) are almost the same (Figure 3, Figure 10).
In an embodiment of the present invention, the compressor (1) comprises at least one extension (15) that extends from the sides of the cover (8) surrounding the second housing (14) and that is situated almost on the suction chamber (7) when the cover (8) is placed on the cylinder head (4). The extension (15) is almost U-shaped. The extension (15) allows heat exchange between the suction chamber (7) and the outside environment. Thus, the interior temperature of the suction chamber (7) is prevented from rising excessively.
In an embodiment of the present invention, the cover (8) comprises at least one recess (16) wherein the suction chamber (7) and/or the exhaust chamber (6) are almost entirely situated when the cover (8) is placed on the cylinder head (4). The suction chamber (7) and the exhaust chamber (6) are disposed between the cover (8) and the valve table (5). The cover (8) almost entirely surrounds the outer wall of the cylinder head (4). Consequently, the sound and noise occurring between the cylinder (3) and the cylinder head (4), generated by the refrigerant flowing in opposite directions within the same volume, are provided to be attenuated. Furthermore, the exhaust chamber (6), the temperature of which rises while containing the high temperature refrigerant, is prevented from dispersing its heat into the casing (2) (Figure 2, Figure 3, Figure 7, Figure 8).
In an embodiment of the present invention, the compressor (1) comprises the cylinder head (4) having a flange (17) located on at least one of its corners and the cover (8) disposed on the cylinder head (4) by being attached to the flanges (17) without contacting the exhaust chamber (6) outer walls and/or the second housing (14). The flange (17) extends from the sides of the exhaust chamber (6). The cover (8) contacts the cylinder head (4) only by means of the flanges (17). The cylinder head (4) and the cover (8) are situated on the valve table (5) one within the other. Thus, by means of the cover (8) disposed below the suction chamber (7) and the exhaust chamber (6), heat and sound increase originating from the refrigerant during pressure surges is prevented from dispersing outside the cover (8) (Figure 9, Figure 10).
In an embodiment of the present invention, the cover (8) is in the form of a frame having a hole through which the exhaust chamber (6) and some portion of the suction chamber (7) passes. Pressure is applied on the cylinder head (4) by the cover (8). Thus, the cover (8) is prevented from detaching from the cylinder head (4).
In an embodiment of the present invention, the compressor (1) comprises at least one protrusion (18) situated on the cover (8) and which provides the cover (8) to be attached to the cylinder head (4). The protrusion (18) has a shape matching that of the flange (17). The cover (8) is provided to be fixed to the cylinder head (4) with the protrusion (18) being fixed to the flange (17).
By means of the present invention, a compressor (1) is realized having the insulation chamber (9) that provides a distance between the cylinder head (4) and the cover (8) thereby insulating the increase in heat and sound originating from refrigerant flow during passage of the refrigerant between the cylinder (3) and the suction chamber (7) or the exhaust chamber (6). Furthermore, by means of the insulation chamber (9), heat exchange between the suction chamber (7) and the exhaust chamber (6) is minimized and efficiency of the compressor (1) is increased. The cover (8) applies pressure on the cylinder head (4) and leakage of refrigerant from the suction chamber (7) and the exhaust chamber (6) situated under the cylinder head (4) is prevented.
It is to be understood that the present invention is not limited to the embodiments disclosed above and a person skilled in the art can easily introduce different embodiments. These different embodiments should also be considered within the scope of the claims of the present invention.

Claims (15)

  1. A compressor (1) comprising
    - a casing (2) carrying the components therein,
    - a cylinder (3) wherein the compression process is performed,
    - a cylinder head (4) disposed on the cylinder (3),
    - a valve table (5) situated between the cylinder (3) and the cylinder head (4),
    - at least one exhaust chamber (6) disposed below the cylinder head (4) wherein the pumped circulating fluid fills,
    - at least one suction chamber (7) wherein the sucked circulating fluid fills and
    - at least one cover (8) mounted onto the cylinder head (4),
    characterized in that
    - at least one insulation chamber (9) situated between the cylinder head (4) and the cover (8).
  2. A compressor (1) as in Claim 1, characterized in that the cover (8) that is produced from a material with low heat and/or sound conductivity.
  3. A compressor (1) as in Claim 1 or 2, characterized in that the cylinder head (4) that is produced from plastic material.
  4. A compressor (1) as in any one of the above Claims, characterized in that the cover (8) that is produced from metal material.
  5. A compressor (1) as in any one of the above Claims, characterized in that the cover (8) that is mounted on the cylinder head (4) by snap-fitting method.
  6. A compressor (1) as in any one of the above Claims, characterized in that the insulation chamber (9) wherein a material having low coefficient of insulation is placed.
  7. A compressor (1) as in any one of the above Claims, characterized in that the insulation chamber (9) that is formed as a recess arranged on the cylinder head (4).
  8. A compressor (1) as in Claim 7, characterized in that the insulation chamber (9) that is situated between the opposite walls that divide the inner volume of the cylinder head (4) into two, separating the suction chamber (7) from the exhaust chamber (6).
  9. A compressor (1) as in Claim 7 or 8, characterized in that at least one sealing element (10) that surrounds the insulation chamber (9).
  10. A compressor (1) as in any one of the Claims 1 to 9, characterized in that at least one suction muffler (11) having a hollow volume that provides the attenuation of the noise generated during pumping of the refrigerant fluid, at least one headpiece (12) mounted on the suction muffler (11) wherein the suction chamber (7) is situated and the cylinder head (4) having at least one first housing (13) wherein the suction muffler (11) is disposed.
  11. A compressor (1) as in Claim 10, characterized in that the cover (8) having at least one second housing (14) wherein the headpiece (12) is placed.
  12. A compressor (1) as in Claim 11, characterized in that at least one extension (15) that extends from the sides of the cover (8) surrounding the second housing (14) and that is situated almost on the suction chamber (7) when the cover (8) is placed on the cylinder head (4).
  13. A compressor (1) as in any one of the above Claims, characterized in that a recess (16), when placed on the cylinder head (4), wherein the suction chamber (7) and/or the exhaust chamber (6) is almost entirely situated.
  14. A compressor (1) as in any one of the Claims 11 to 13, characterized in that the cylinder head (4) having a flange (17) located on at least one of its corners and the cover (8) disposed on the cylinder head (4) by being attached to the flanges (17) without contacting the outer walls of the exhaust chamber (6) and/or the second housing (14).
  15. A compressor (1) as in any one of the above Claims, characterized in that at least one protrusion (18) situated on the cover (8) and which provides the cover (8) to be attached to the cylinder head (4).
PCT/EP2013/060319 2012-06-06 2013-05-18 A compressor comprising a cylinder head WO2013182408A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES13723788.9T ES2585729T3 (en) 2012-06-06 2013-05-18 Compressor comprising a cylinder head
EP13723788.9A EP2859235B1 (en) 2012-06-06 2013-05-18 A compressor comprising a cylinder head
SI201330244A SI2859235T1 (en) 2012-06-06 2013-05-18 A compressor comprising a cylinder head
CN201380029641.3A CN104583593B (en) 2012-06-06 2013-05-18 A compressor comprising a cylinder head
BR112014030493A BR112014030493A2 (en) 2012-06-06 2013-05-18 compressor comprising cylinder head

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201206618 2012-06-06
TRA2012/06618 2012-06-06

Publications (1)

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WO2013182408A1 true WO2013182408A1 (en) 2013-12-12

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CN (1) CN104583593B (en)
BR (1) BR112014030493A2 (en)
ES (1) ES2585729T3 (en)
SI (1) SI2859235T1 (en)
WO (1) WO2013182408A1 (en)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN108457839A (en) * 2018-05-30 2018-08-28 江苏白雪电器股份有限公司 Compressor and its air suction silencer
US10253766B2 (en) 2015-05-13 2019-04-09 Carrier Corporation Economized reciprocating compressor
WO2020015900A1 (en) * 2018-07-19 2020-01-23 Arcelik Anonim Sirketi An insulation cap

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CN106224205B (en) * 2016-09-21 2018-05-01 安徽美芝制冷设备有限公司 The muffler of compressor and there is its compressor
CN106224204B (en) * 2016-09-21 2018-06-15 安徽美芝制冷设备有限公司 Compressor muffler and with its compressor
CN111120273B (en) * 2020-01-22 2024-02-23 黄石东贝压缩机有限公司 Novel valve group installation system and method for reciprocating piston refrigeration compressor
CN113153702A (en) * 2021-04-20 2021-07-23 加西贝拉压缩机有限公司 Compressor cylinder cover structure for preventing high pressure leakage
CN113090493B (en) * 2021-04-30 2023-07-18 黄石东贝压缩机有限公司 Totally-enclosed piston refrigeration compressor

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GB165234A (en) * 1920-04-01 1921-06-30 Leuig Chew Improvements in or relating to compression pumps
FR1368173A (en) * 1963-06-04 1964-07-31 Thomson Houston Comp Francaise Improvements made to the cylinder head cover of a refrigeration compressor
JPS6065291A (en) 1983-09-20 1985-04-15 Sanyo Electric Co Ltd Cylinder head for compressor
US20060039813A1 (en) * 2004-08-19 2006-02-23 Thomas Paul J Domed cover for pump head
WO2010133503A1 (en) * 2009-05-22 2010-11-25 Arcelik Anonim Sirketi A compressor comprising a cylinder head

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DE10244565B4 (en) * 2002-09-25 2004-07-22 Danfoss Compressors Gmbh Cylinder head arrangement for a piston compressor

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GB165234A (en) * 1920-04-01 1921-06-30 Leuig Chew Improvements in or relating to compression pumps
FR1368173A (en) * 1963-06-04 1964-07-31 Thomson Houston Comp Francaise Improvements made to the cylinder head cover of a refrigeration compressor
JPS6065291A (en) 1983-09-20 1985-04-15 Sanyo Electric Co Ltd Cylinder head for compressor
US20060039813A1 (en) * 2004-08-19 2006-02-23 Thomas Paul J Domed cover for pump head
WO2010133503A1 (en) * 2009-05-22 2010-11-25 Arcelik Anonim Sirketi A compressor comprising a cylinder head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10253766B2 (en) 2015-05-13 2019-04-09 Carrier Corporation Economized reciprocating compressor
CN108457839A (en) * 2018-05-30 2018-08-28 江苏白雪电器股份有限公司 Compressor and its air suction silencer
WO2020015900A1 (en) * 2018-07-19 2020-01-23 Arcelik Anonim Sirketi An insulation cap

Also Published As

Publication number Publication date
CN104583593A (en) 2015-04-29
EP2859235A1 (en) 2015-04-15
EP2859235B1 (en) 2016-05-04
SI2859235T1 (en) 2016-08-31
CN104583593B (en) 2017-02-22
BR112014030493A2 (en) 2017-06-27
ES2585729T3 (en) 2016-10-07

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