WO2024129011A1 - A compressor - Google Patents

A compressor Download PDF

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Publication number
WO2024129011A1
WO2024129011A1 PCT/TR2023/050656 TR2023050656W WO2024129011A1 WO 2024129011 A1 WO2024129011 A1 WO 2024129011A1 TR 2023050656 W TR2023050656 W TR 2023050656W WO 2024129011 A1 WO2024129011 A1 WO 2024129011A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
section
wall
refrigerant fluid
muffler
Prior art date
Application number
PCT/TR2023/050656
Other languages
French (fr)
Inventor
Anil CEVIK
Volkan CANAKCI
Ergin TASDELEN
Sehmuz Ali SUBAY
Tolga CETIN
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
Publication of WO2024129011A1 publication Critical patent/WO2024129011A1/en

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Definitions

  • the present invention relates to a hermetic type compressor suitable for use in cooling devices.
  • the refrigerant fluid is sucked from and pumped back to the refrigeration cycle by means of a piston operating in a cylinder.
  • One of the most important factors determining the operational performance of this type of compressors is the amount and temperature of the refrigerant fluid entering the cylinder in the course of the sucking action of the piston.
  • Increased temperature of the refrigerant fluid sucked from the refrigeration cycle causes a reduction in the amount of refrigerant fluid entering the compression volume of the cylinder, thus decreasing the volumetric efficiency and capacity of the compressor.
  • Excessive increase in the temperature at the inlet of the cylinder also causes an increase in the body temperature of the cylinder, which adversely affects the compression process.
  • a compressor wherein the leakproofing of the refrigerant fluid is provided between a connection pipe manufactured from a soft and elastic material and a muffler inlet pipe manufactured from hard plastic.
  • the aim of the present invention is the realization of a compressor comprising a muffler with improved performance.
  • the compressor realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a muffler casing having an inlet at one end to which the exhaust pipe is connected and an outlet at the opposite end to which the suction pipe is connected; a wall which divides the muffler casing into two with a first section having the inlet on one side and a second section having the outlet on the other side, which prevents the passage of refrigerant fluid from the first section to the second section, which has a bearing in the center thereof wherein the suction pipe is borne and which moves horizontally on the suction pipe; and a movement member which is disposed in the second section between the wall and the muffler casing, which is disposed on the suction pipe and which moves with the movement of the wall.
  • the movement member is a spring.
  • the wall moves on the suction pipe depending on the varying amount of flow mass per unit second of the refrigerant fluid coming from the exhaust line so as to cause the movement member, especially the spring, to be compressed or released.
  • the movement member especially the spring
  • the exhaust pipe passes through the inlet and opens into the first section in the muffler casing.
  • the suction pipe passes through the outlet, extends along the second section and opens into the first section through the bearing on the wall.
  • the wall is manufactured from polymer material.
  • sealing is provided between the first section and the second section, between the wall and the muffler casing.
  • the compressor comprises a slot which is arranged all around on the periphery of the wall, adjacent to the muffler casing wall. By means of the slot, the movement of the wall on the suction pipe is facilitated.
  • the muffler casing is composed of two parts. The muffler casing is formed by joining the first part and the second part. In this embodiment of the present invention, the wall moves entirely in the second part.
  • the efficiency of the muffler used in the exhaust line of the reciprocating compressors is increased, thus providing a direct positive effect on the performance of the compressor.
  • a muffler with an adjustable volume is developed to discharge the outlet pressures of compressors operating at variable speeds. While the amount of flow mass passing through the exhaust line per second is low at the compressor operating speed, approximately half of the volume of the muffler is used since the movement member is in the free position. In the calorimeter test performed in this state, the gain is determined to be provided with respect to the current usage situation. Similarly, when the amount of flow mass passing through the exhaust line per second increases at the compressor operating speed, the movement member is pushed by the movement of the wall and the volume of the muffler increases.
  • the compressor operates at high speeds at the values where the amount of flow mass per second of the refrigerant fluid is the highest. According to the calorimeter test performed at high cycles, a negative situation is not observed compared to the state of the art embodiments.
  • Figure 1 - is the cross-sectional view of a compressor.
  • Figure 2 - is the cross-sectional perspective view of the muffler when the spring is released related to an embodiment of the present invention.
  • Figure 3 - is the cross-sectional perspective view of the muffler when the spring is compressed related to another embodiment of the present invention.
  • the compressor (1) comprises a motor; a casing which supports the components therein; a cylinder which is disposed in the lower casing and the upper casing so as to ensure the pumping of the refrigerant fluid therein; a valve table which enables the low pressure refrigerant fluid to be taken into the cylinder and the high pressure refrigerant fluid to be directed to the cylinder; a cylinder head which is provided on the cylinder and which provides the circulation of the low and high pressure refrigerant fluid; a piston which compresses the refrigerant fluid in the cylinder; a crank which transfers the movement from the motor; a connection rod which transfers the movement from the crank to the piston; and a crankpin which connects the connection rod and the piston to each other ( Figure 1).
  • the rotational movement of the motor is delivered to the piston by means of the crank-connection rod-crankpin mechanism, thus realizing the reciprocating movement of the piston.
  • the refrigerant fluid in the cylinder is compressed.
  • the suction leaf on the valve table opens into the cylinder hole, the refrigerant fluid entering the suction valve is compressed and pressurized to the desired level and passes through the exhaust port with the opening of the exhaust leaf on the valve table, and thus the high- pressure refrigerant fluid is delivered to the exhaust chamber of the cylinder head.
  • the refrigerant fluid is sent to the refrigeration cycle after the exhaust chamber.
  • the compressor (1) further comprises an exhaust pipe (8) which is connected to the exhaust line; a suction pipe (9) which is connected to the suction line; a muffler (2); a muffler casing (3) having an inlet (6) at one end to which the exhaust pipe (8) is connected and an outlet (7) at the opposite end to which the suction pipe (9) is connected; a wall (10) which divides the muffler casing (3) into two with a first section (4) having the inlet (6) on one side and a second section (5) having the outlet (7) on the other side, which prevents the passage of refrigerant fluid from the first section (4) to the second section (5), which has a bearing (11) in the center thereof wherein the suction pipe (9) is borne and which moves horizontally on the suction pipe (9); and a movement member (13) which is disposed in the second section (5) between the wall (10) and the muffler casing (3), which is disposed on the suction pipe (9) and which moves with the movement of the wall (10).
  • the wall (10) moves on the suction pipe (9) depending on the varying amount of flow mass per unit second of the refrigerant fluid coming from the exhaust line so as to cause the movement member (13) to be pushed or released, and when the movement member (13) is a spring, to be compressed or released.
  • the pressure of the refrigerant fluid in the first section (4) of the muffler (2) cannot overcome the compression force of the movement member (13), and the wall (10) stands almost in the center of the muffler casing (3) with the volume of the first and second sections (4 and 5) being almost equal.
  • the exhaust pipe (8) passes through the inlet (6) and opens into the first section (4) in the muffler casing (3).
  • the suction pipe (9) passes through the outlet (7), extends along the second section (5) and opens into the first section (4) through the bearing (11) on the wall (10).
  • the wall (10) is manufactured from polymer material.
  • sealing is provided between the first section (4) and the second section (5), between the wall (10) and the muffler casing (3).
  • the compressor (1) comprises a slot (12) which is arranged all around on the periphery of the wall (10), adjacent to the muffler casing (3) wall. By means of the slot (12), the movement of the wall (10) on the suction pipe (9) is facilitated.
  • the muffler casing (3) is composed of two parts.
  • the muffler casing (3) is formed by joining the first part and the second part.
  • the wall (10) moves entirely in the second part and the movement member (13) does not separate from the second part.
  • the efficiency of the muffler (2) used in the exhaust line of the reciprocating compressors (1) is increased, thus providing a direct positive effect on the performance of the compressor (1).
  • a muffler (2) with an adjustable volume is developed to discharge the outlet pressures of compressors (1) operating at variable speeds. While the amount of flow mass passing through the exhaust line per second is low at the compressor (1) operating speed, approximately half of the volume of the muffler (2) is used since the movement member (13) is in the free position. In the calorimeter test performed in this state, the gain is determined to be provided with respect to the current usage situation.
  • the movement member (13) is compressed by the movement of the wall (10) and the volume of the muffler (2) increases. In this case, approximately the entire volume of the muffler (2) is used.
  • the compressor (1) operates at high speeds at the values where the amount of flow mass per second of the refrigerant fluid is the highest.

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  • Compressor (AREA)

Abstract

In cooling devices, the circulation of the refrigerant fluid used for refrigeration is provided by a compressor (1). The compressor (1) comprises a motor; a casing which supports the components therein; a cylinder which is disposed in the lower casing and the upper casing so as to ensure the pumping of the refrigerant fluid therein; a valve table which enables the low pressure refrigerant fluid to be taken into the cylinder and the high pressure refrigerant fluid to be directed to the cylinder; a cylinder head which is provided on the cylinder and which provides the circulation of the low and high pressure refrigerant fluid; a piston which compresses the refrigerant fluid in the cylinder; a crank which transfers the movement from the motor; a connection rod which transfers the movement from the crank to the piston; and a crankpin which connects the connection rod and the piston to each other.

Description

A COMPRESSOR
The present invention relates to a hermetic type compressor suitable for use in cooling devices.
In hermetic compressors, the refrigerant fluid is sucked from and pumped back to the refrigeration cycle by means of a piston operating in a cylinder. One of the most important factors determining the operational performance of this type of compressors is the amount and temperature of the refrigerant fluid entering the cylinder in the course of the sucking action of the piston. Increased temperature of the refrigerant fluid sucked from the refrigeration cycle causes a reduction in the amount of refrigerant fluid entering the compression volume of the cylinder, thus decreasing the volumetric efficiency and capacity of the compressor. Excessive increase in the temperature at the inlet of the cylinder also causes an increase in the body temperature of the cylinder, which adversely affects the compression process.
In the state of the art International Patent Application No. W02007015223, a compressor is disclosed, wherein the leakproofing of the refrigerant fluid is provided between a connection pipe manufactured from a soft and elastic material and a muffler inlet pipe manufactured from hard plastic.
The aim of the present invention is the realization of a compressor comprising a muffler with improved performance.
The compressor realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a muffler casing having an inlet at one end to which the exhaust pipe is connected and an outlet at the opposite end to which the suction pipe is connected; a wall which divides the muffler casing into two with a first section having the inlet on one side and a second section having the outlet on the other side, which prevents the passage of refrigerant fluid from the first section to the second section, which has a bearing in the center thereof wherein the suction pipe is borne and which moves horizontally on the suction pipe; and a movement member which is disposed in the second section between the wall and the muffler casing, which is disposed on the suction pipe and which moves with the movement of the wall.
In an embodiment of the present invention, the movement member is a spring.
In the embodiment of the present invention, the wall moves on the suction pipe depending on the varying amount of flow mass per unit second of the refrigerant fluid coming from the exhaust line so as to cause the movement member, especially the spring, to be compressed or released. In general, at low speeds of the compressor, when the flow mass per unit second is low, the pressure of the refrigerant fluid in the first section of the muffler cannot overcome the compression force of the movement member, and the wall stands almost in the center of the muffler casing with the volume of the first and second sections being almost equal. In the middle and high speeds of the compressor, since the amount of flow mass per unit second of the refrigerant fluid is increased, the pressure of the refrigerant fluid in the first section of the muffler overcomes the compression force of the movement member and pushes the wall towards the compression direction of the spring, that is, towards the second section. Thus, the volume of the first section of the muffler increases relative to the initial state. When the flow rate of the refrigerant fluid per unit second decreases, the compression force of the spring overcomes the refrigerant fluid pressure in the first section and the wall returns to its original position. Thus, a muffler with variable volume is obtained.
In the embodiment of the present invention, the exhaust pipe passes through the inlet and opens into the first section in the muffler casing. In this embodiment of the present invention, the suction pipe passes through the outlet, extends along the second section and opens into the first section through the bearing on the wall.
In an embodiment of the present invention, the wall is manufactured from polymer material. Thus, sealing is provided between the first section and the second section, between the wall and the muffler casing.
In another embodiment of the present invention, the compressor comprises a slot which is arranged all around on the periphery of the wall, adjacent to the muffler casing wall. By means of the slot, the movement of the wall on the suction pipe is facilitated. In another embodiment of the present invention, the muffler casing is composed of two parts. The muffler casing is formed by joining the first part and the second part. In this embodiment of the present invention, the wall moves entirely in the second part.
By means of the present invention, the efficiency of the muffler used in the exhaust line of the reciprocating compressors is increased, thus providing a direct positive effect on the performance of the compressor. A muffler with an adjustable volume is developed to discharge the outlet pressures of compressors operating at variable speeds. While the amount of flow mass passing through the exhaust line per second is low at the compressor operating speed, approximately half of the volume of the muffler is used since the movement member is in the free position. In the calorimeter test performed in this state, the gain is determined to be provided with respect to the current usage situation. Similarly, when the amount of flow mass passing through the exhaust line per second increases at the compressor operating speed, the movement member is pushed by the movement of the wall and the volume of the muffler increases. In this case, approximately the entire volume of the muffler is used. The compressor operates at high speeds at the values where the amount of flow mass per second of the refrigerant fluid is the highest. According to the calorimeter test performed at high cycles, a negative situation is not observed compared to the state of the art embodiments.
A 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 cross-sectional perspective view of the muffler when the spring is released related to an embodiment of the present invention.
Figure 3 - is the cross-sectional perspective view of the muffler when the spring is compressed related to another embodiment of the present invention.
The elements illustrated in the figures are numbered as follows:
1. Compressor
2. Muffler 3. Muffler casing
4. First partition
5. Second partition
6. Inlet
7. Outlet
8. Exhaust pipe
9. Suction pipe
10. Wall
11. Bearing
12. Slot
13. Movement member
In cooling devices, the circulation of the refrigerant fluid used for refrigeration is provided by a compressor (1). The compressor (1) comprises a motor; a casing which supports the components therein; a cylinder which is disposed in the lower casing and the upper casing so as to ensure the pumping of the refrigerant fluid therein; a valve table which enables the low pressure refrigerant fluid to be taken into the cylinder and the high pressure refrigerant fluid to be directed to the cylinder; a cylinder head which is provided on the cylinder and which provides the circulation of the low and high pressure refrigerant fluid; a piston which compresses the refrigerant fluid in the cylinder; a crank which transfers the movement from the motor; a connection rod which transfers the movement from the crank to the piston; and a crankpin which connects the connection rod and the piston to each other (Figure 1).
The rotational movement of the motor is delivered to the piston by means of the crank-connection rod-crankpin mechanism, thus realizing the reciprocating movement of the piston. By means of the reciprocating movement of the piston, the refrigerant fluid in the cylinder is compressed. As the suction leaf on the valve table opens into the cylinder hole, the refrigerant fluid entering the suction valve is compressed and pressurized to the desired level and passes through the exhaust port with the opening of the exhaust leaf on the valve table, and thus the high- pressure refrigerant fluid is delivered to the exhaust chamber of the cylinder head. The refrigerant fluid is sent to the refrigeration cycle after the exhaust chamber.
The compressor (1) further comprises an exhaust pipe (8) which is connected to the exhaust line; a suction pipe (9) which is connected to the suction line; a muffler (2); a muffler casing (3) having an inlet (6) at one end to which the exhaust pipe (8) is connected and an outlet (7) at the opposite end to which the suction pipe (9) is connected; a wall (10) which divides the muffler casing (3) into two with a first section (4) having the inlet (6) on one side and a second section (5) having the outlet (7) on the other side, which prevents the passage of refrigerant fluid from the first section (4) to the second section (5), which has a bearing (11) in the center thereof wherein the suction pipe (9) is borne and which moves horizontally on the suction pipe (9); and a movement member (13) which is disposed in the second section (5) between the wall (10) and the muffler casing (3), which is disposed on the suction pipe (9) and which moves with the movement of the wall (10). The movement member (13) is preferably a spring.
In the embodiment of the present invention, the wall (10) moves on the suction pipe (9) depending on the varying amount of flow mass per unit second of the refrigerant fluid coming from the exhaust line so as to cause the movement member (13) to be pushed or released, and when the movement member (13) is a spring, to be compressed or released. In general, at low speeds of the compressor (1), when the flow mass per unit second is low, the pressure of the refrigerant fluid in the first section (4) of the muffler (2) cannot overcome the compression force of the movement member (13), and the wall (10) stands almost in the center of the muffler casing (3) with the volume of the first and second sections (4 and 5) being almost equal. In the middle and high speeds of the compressor (1), since the amount of flow mass per unit second of the refrigerant fluid is increased, the pressure of the refrigerant fluid in the first section (4) of the muffler (2) overcomes the compression force of the movement member (13) and pushes the wall (10) towards the compression direction of the movement member (13), that is, towards the second section (5). Thus, the volume of the first section (4) of the muffler (2) increases relative to the initial state. When the flow rate of the refrigerant fluid per unit second decreases, the compression force of the movement member (13) overcomes the refrigerant fluid pressure in the first section (4) and the wall (10) returns to its original position. Thus, a muffler (2) with variable volume is obtained (Figure 2 and Figure 3).
In the embodiment of the present invention, the exhaust pipe (8) passes through the inlet (6) and opens into the first section (4) in the muffler casing (3). In this embodiment of the present invention, the suction pipe (9) passes through the outlet (7), extends along the second section (5) and opens into the first section (4) through the bearing (11) on the wall (10).
In an embodiment of the present invention, the wall (10) is manufactured from polymer material. Thus, sealing is provided between the first section (4) and the second section (5), between the wall (10) and the muffler casing (3).
In another embodiment of the present invention, the compressor (1) comprises a slot (12) which is arranged all around on the periphery of the wall (10), adjacent to the muffler casing (3) wall. By means of the slot (12), the movement of the wall (10) on the suction pipe (9) is facilitated.
In another embodiment of the present invention, the muffler casing (3) is composed of two parts. The muffler casing (3) is formed by joining the first part and the second part. In this embodiment of the present invention, the wall (10) moves entirely in the second part and the movement member (13) does not separate from the second part.
By means of the present invention, the efficiency of the muffler (2) used in the exhaust line of the reciprocating compressors (1) is increased, thus providing a direct positive effect on the performance of the compressor (1). A muffler (2) with an adjustable volume is developed to discharge the outlet pressures of compressors (1) operating at variable speeds. While the amount of flow mass passing through the exhaust line per second is low at the compressor (1) operating speed, approximately half of the volume of the muffler (2) is used since the movement member (13) is in the free position. In the calorimeter test performed in this state, the gain is determined to be provided with respect to the current usage situation. Similarly, when the amount of flow mass passing through the exhaust line per second increases at the compressor (1) operating speed, the movement member (13) is compressed by the movement of the wall (10) and the volume of the muffler (2) increases. In this case, approximately the entire volume of the muffler (2) is used. The compressor (1) operates at high speeds at the values where the amount of flow mass per second of the refrigerant fluid is the highest.
According to the calorimeter test performed at high cycles, a negative situation is not observed compared to the state of the art embodiments.

Claims

1. A compressor (1) comprising an exhaust pipe (8) which is connected to the exhaust line; a suction pipe (9) which is connected to the suction line; a muffler (2); and a muffler casing (3) having an inlet (6) at one end to which the exhaust pipe (8) is connected and an outlet (7) at the opposite end to which the suction pipe (9) is connected, characterized by a wall
(10) which divides the muffler casing (3) into two with a first section (4) having the inlet (6) on one side and a second section (5) having the outlet (7) on the other side, which prevents the passage of refrigerant fluid from the first section (4) to the second section (5), which has a bearing (11) in the center thereof wherein the suction pipe (9) is borne and which moves horizontally on the suction pipe (9); and a movement member (13) which is disposed in the second section (5) between the wall (10) and the muffler casing (3), which is disposed on the suction pipe (9) and which moves with the movement of the wall (10).
2. A compressor (1) as in Claim 1, characterized by the movement member (13) which is a spring.
3. A compressor (1) as in Claim 1 or Claim 2, characterized by the exhaust pipe (8) which passes through the inlet (6) and opens into the first section (4) in the muffler casing (3).
4. A compressor (1) as in any one of the above claims, characterized by the suction pipe (9) which passes through the outlet (7), extends along the second section (5) and opens into the first section (4) through the bearing
(11) on the wall (10).
5. A compressor (1) as in any one of the above claims, characterized by the wall (10) which is manufactured from polymer material.
6. A compressor (1) as in any one of the above claims, characterized by a slot (12) which is arranged all around on the periphery of the wall (10), adjacent to the muffler casing (3) wall.
7. A compressor (1) as in any one of the above claims, characterized by the muffler casing (3) which is composed of two parts.
PCT/TR2023/050656 2022-12-12 2023-07-06 A compressor WO2024129011A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2022/019044 2022-12-12
TR2022019044 2022-12-12

Publications (1)

Publication Number Publication Date
WO2024129011A1 true WO2024129011A1 (en) 2024-06-20

Family

ID=91485602

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2023/050656 WO2024129011A1 (en) 2022-12-12 2023-07-06 A compressor

Country Status (1)

Country Link
WO (1) WO2024129011A1 (en)

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