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WO2017061967A1 - A compressor with a suction muffler - Google Patents

A compressor with a suction muffler Download PDF

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Publication number
WO2017061967A1
WO2017061967A1 PCT/TR2016/050305 TR2016050305W WO2017061967A1 WO 2017061967 A1 WO2017061967 A1 WO 2017061967A1 TR 2016050305 W TR2016050305 W TR 2016050305W WO 2017061967 A1 WO2017061967 A1 WO 2017061967A1
Authority
WO
WIPO (PCT)
Prior art keywords
muffler
head
cylinder
compressor
cylinder head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/TR2016/050305
Other languages
French (fr)
Inventor
Cengiz Kayahan OZLAV
Bilgin Hacioglu
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 WO2017061967A1 publication Critical patent/WO2017061967A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • F04B39/0027—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
    • 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
    • F04B39/0072—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes characterised by assembly or mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125—Cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/14—Provisions for readily assembling or disassembling

Definitions

  • the present invention relates to a hermetic compressor comprising a suction muffler which reduces the noise generated during the cycling of the refrigerant fluid used in the cooling cycle of cooling devices.
  • a suction muffler that enables the refrigerant fluid used to provide cooling to reach the cylinder region without heating up and that provides the suppression of the noise that may originate from the refrigerant fluid is used.
  • the suction muffler is generally produced from plastic material and disposed on the cylinder head or between the cylinder head and the valve table. The sucked refrigerant fluid passes through the suction muffler of which the part constituting the suction manifold is disposed in the cylinder head and reaches the cylinder.
  • the cylinder head is produced as a single piece and a part of the cylinder head comes into contact with the surfaces of the suction muffler that constitute the suction chamber thereof. It is observed, however, in the compressors that the muffler head becomes loose and move in the gap of the cylinder head over the time. This is caused by wearing of the pins on the muffler head during mounting or operation. Consequently, the permanent contact between the muffler head and the valve table is broken and due to the vibrations of the motor, impacts may occur, thereby increasing the noise level of the compressor.
  • the aim of the present invention is to realize a compressor wherein the noise is reduced by preventing the suction muffler from hitting the cylinder head and the valve table.
  • 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 flexible protrusion that is produced from thermoplastic material as a single piece with the muffler head, that extends to contact the cylinder head and that serves as a spring.
  • the protrusion is integrated with the rear wall of the suction muffler and pushes the head of the suction muffler toward the valve table.
  • the protrusion serving as a spring By means of the protrusion serving as a spring, permanent contact between the suction muffler and the valve table is provided. Thus, even if the pins joining the muffler head and the cylinder head with each other are worn, permanent contact between the suction muffler and the valve table is provided, impacts are prevented and the noise level is reduced.
  • the protrusion is preferably in the form of "J" and comprises a first arm and a second arm connected to the first arm. A curved bend is provided between the first arm and the second arm.
  • Figure 1 - is a cross-sectional view of a compressor.
  • Figure 2 - is a cross-sectional view of the muffler head on the suction muffler wherein the cylinder head and the valve table are also illustrated symbolically in order to provide information about the position.
  • the compressor (1) comprises a motor (2) consisting of two main parts, a stator (3) and a rotor (4); a cylinder (5) providing pumping of the refrigerant fluid; a cylinder head (6) that is disposed on the cylinder (5) and that provides circulation of the refrigerant fluid at low and high pressures; a valve table (10) that enables the refrigerant fluid at low pressure to be taken into the cylinder (5) and the refrigerant fluid at high pressure to be delivered to the cylinder head (6); a suction muffler (7) that is disposed on the cylinder head (6), that is produced from thermoplastic material, that enables the refrigerant fluid to reach the cylinder (5) without heating up and that minimizes the noise, and a muffler head (8) that enables the suction muffler (7) to be mounted on the cylinder head (6).
  • the suction muffler (7) in the compressor (1) of the present invention comprises a flexible protrusion (11) that is produced as a single piece with the muffler head (8), that extends from the muffler head (8) toward the cylinder head (6) to contact the latter and that provides continuous contact between the muffler head (8) and the valve table (10) during the operation of the motor (2) ( Figure 1, 2).
  • the protrusion (11) is disposed between the suction muffler (7) and the cylinder head (6), on the rear wall of the muffler head (8) facing the cylinder head (6).
  • the flexible protrusion (11) bearing on the cylinder head (6) pushes the muffler head (8) back, pressing the same toward the valve table (10).
  • the protrusion (11) closes the gap between the muffler head (8) and the cylinder head (6), thus providing permanent contact between the muffler head (8) and the cylinder head (6) and between the muffler head (8) and the valve table (10), and preventing the muffler head (8) from hitting the cylinder head (6) and the valve table (10) due to the vibrations of the motor (2), and thereby the noise level is reduced.
  • the protrusion (11) comprises a first arm (12) with one end connected to the suction muffler (7), a second arm (13) that is connected to the first arm (12) and that extends almost in parallel with the muffler head (8) and the cylinder head (6), and a bend (14) that connects the first arm (12) to the second arm (13).
  • the protrusion (11) can be in either "J” form or ""L” form.
  • the bend (14) has a curved structure and the protrusion (11) is preferably in "J” form in order to provide permanent contact between the muffler head (8) and the valve table (10) and to improve the springiness function.
  • a gap (15) occurs between the muffler head (8) and the protrusion (11) which is fixed on the rear wall of the muffler head (8), and the second arm (13), hence the protrusion (11) stretches by means of the said gap (15).
  • the protrusion (11) is produced as a single piece from the same material as the muffler head (8), use of an additional part is avoided and thus saving in terms of material and labor is achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The present invention relates to a compressor (1) comprising a motor (2) consisting of two main parts, a stator (3) and a rotor (4); a cylinder (5) providing pumping of the refrigerant fluid; a cylinder head (6) that is disposed on the cylinder (5) and that provides circulation of the refrigerant fluid at low and high pressures; a valve table (10) that enables the refrigerant fluid at low pressure to be taken into the cylinder (5) and the refrigerant fluid at high pressure to be delivered to the cylinder head (6); a suction muffler (7) that is disposed on the cylinder head (6), that enables the refrigerant fluid to reach the cylinder (5) without heating up and that minimizes the noise, and a muffler head (8) that enables the suction muffler (7) to be mounted on the cylinder head (6).

Description

A COMPRESSOR WITH A SUCTION MUFFLER
The present invention relates to a hermetic compressor comprising a suction muffler which reduces the noise generated during the cycling of the refrigerant fluid used in the cooling cycle of cooling devices. In hermetic compressors used in the cooling cycle in cooling devices, a suction muffler that enables the refrigerant fluid used to provide cooling to reach the cylinder region without heating up and that provides the suppression of the noise that may originate from the refrigerant fluid is used. The suction muffler is generally produced from plastic material and disposed on the cylinder head or between the cylinder head and the valve table. The sucked refrigerant fluid passes through the suction muffler of which the part constituting the suction manifold is disposed in the cylinder head and reaches the cylinder. During this process, it is required to minimize the resulting noise and to improve the thermodynamic efficiency. However, heat transfer occurs in the sections where the cylinder head and the suction muffler join in such amount that may affect the thermodynamic cycle. In these embodiments, the cylinder head is produced as a single piece and a part of the cylinder head comes into contact with the surfaces of the suction muffler that constitute the suction chamber thereof. It is observed, however, in the compressors that the muffler head becomes loose and move in the gap of the cylinder head over the time. This is caused by wearing of the pins on the muffler head during mounting or operation. Consequently, the permanent contact between the muffler head and the valve table is broken and due to the vibrations of the motor, impacts may occur, thereby increasing the noise level of the compressor.
In the state of the art, the use of a spring to provide the contact between the suction muffler and the valve table is known.
In the state of the art United States Patent Documents No. US5613842 and US5207564, placement of a plate acting as spring on the side of the muffler head facing the cylinder head is disclosed. In another the state of the art International Patent Application No. W09822712 and European Patent Application No. EP1347174, placement of a plate acting as a spring on the side of the muffler head facing the cylinder head is disclosed.
The aim of the present invention is to realize a compressor wherein the noise is reduced by preventing the suction muffler from hitting the cylinder head and the valve table.
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 flexible protrusion that is produced from thermoplastic material as a single piece with the muffler head, that extends to contact the cylinder head and that serves as a spring. The protrusion is integrated with the rear wall of the suction muffler and pushes the head of the suction muffler toward the valve table.
By means of the protrusion serving as a spring, permanent contact between the suction muffler and the valve table is provided. Thus, even if the pins joining the muffler head and the cylinder head with each other are worn, permanent contact between the suction muffler and the valve table is provided, impacts are prevented and the noise level is reduced.
The protrusion is preferably in the form of "J" and comprises a first arm and a second arm connected to the first arm. A curved bend is provided between the first arm and the second arm.
The model embodiments related to the compressor realized in order to attain the aim of the present invention are illustrated in the attached figures, where:
Figure 1 - is a cross-sectional view of a compressor.
Figure 2 - is a cross-sectional view of the muffler head on the suction muffler wherein the cylinder head and the valve table are also illustrated symbolically in order to provide information about the position.
The elements in the figures are numbered as follows:
1. Compressor 2. Motor
3. Stator
4. Rotor
5. Cylinder
6. Cylinder head
7. Suction muffler
8. Muffler head
9. Outlet port
10. Valve table
11. Protrusion
12. First arm
13. Second arm
14. Bend
15. Gap
The compressor (1) comprises a motor (2) consisting of two main parts, a stator (3) and a rotor (4); a cylinder (5) providing pumping of the refrigerant fluid; a cylinder head (6) that is disposed on the cylinder (5) and that provides circulation of the refrigerant fluid at low and high pressures; a valve table (10) that enables the refrigerant fluid at low pressure to be taken into the cylinder (5) and the refrigerant fluid at high pressure to be delivered to the cylinder head (6); a suction muffler (7) that is disposed on the cylinder head (6), that is produced from thermoplastic material, that enables the refrigerant fluid to reach the cylinder (5) without heating up and that minimizes the noise, and a muffler head (8) that enables the suction muffler (7) to be mounted on the cylinder head (6).
The suction muffler (7) in the compressor (1) of the present invention comprises a flexible protrusion (11) that is produced as a single piece with the muffler head (8), that extends from the muffler head (8) toward the cylinder head (6) to contact the latter and that provides continuous contact between the muffler head (8) and the valve table (10) during the operation of the motor (2) (Figure 1, 2).
The protrusion (11) is disposed between the suction muffler (7) and the cylinder head (6), on the rear wall of the muffler head (8) facing the cylinder head (6). The flexible protrusion (11) bearing on the cylinder head (6) pushes the muffler head (8) back, pressing the same toward the valve table (10). The protrusion (11) closes the gap between the muffler head (8) and the cylinder head (6), thus providing permanent contact between the muffler head (8) and the cylinder head (6) and between the muffler head (8) and the valve table (10), and preventing the muffler head (8) from hitting the cylinder head (6) and the valve table (10) due to the vibrations of the motor (2), and thereby the noise level is reduced.
The protrusion (11) comprises a first arm (12) with one end connected to the suction muffler (7), a second arm (13) that is connected to the first arm (12) and that extends almost in parallel with the muffler head (8) and the cylinder head (6), and a bend (14) that connects the first arm (12) to the second arm (13). The protrusion (11) can be in either "J" form or ""L" form. The bend (14) has a curved structure and the protrusion (11) is preferably in "J" form in order to provide permanent contact between the muffler head (8) and the valve table (10) and to improve the springiness function.
A gap (15) occurs between the muffler head (8) and the protrusion (11) which is fixed on the rear wall of the muffler head (8), and the second arm (13), hence the protrusion (11) stretches by means of the said gap (15).
In the compressor (1) of the present invention, since the protrusion (11) is produced as a single piece from the same material as the muffler head (8), use of an additional part is avoided and thus saving in terms of material and labor is achieved.

Claims

1 - A compressor (1) comprising a motor (2) consisting of two main parts, a stator (3) and a rotor (4); a cylinder (5) providing pumping of the refrigerant fluid; a cylinder head (6) that is disposed on the cylinder (5) and that provides circulation of the refrigerant fluid at low and high pressures; a valve table (10) that enables the refrigerant fluid at low pressure to be taken into the cylinder (5) and the refrigerant fluid at high pressure to be delivered to the cylinder head (6); a suction muffler (7) that is disposed on the cylinder head (6) and that is produced from thermoplastic material, and a muffler head (8) that enables the suction muffler (7) to be mounted on the cylinder head (6), characterized by the suction muffler (7) comprising a flexible protrusion (11) that is produced as a single piece with the muffler head (8), that extends from the muffler head (8) toward the cylinder head (6) to contact the same and provides permanent contact between the muffler head (8) and the valve table (10). 2 - A compressor (1) as in Claim 1, characterized by the suction muffler (7) comprising the protrusion (11) in the form of "J".
3 - A compressor (1) as in Claim 1, characterized by the suction muffler (7) comprising the protrusion (11) in the form of "L".
4 - A compressor (1) as in any one of Claims 1 to 3, characterized by the suction muffler (7) comprising the protrusion (11) having a first arm (12) with one end connected to the muffler head (8), and a second arm (13) that is connected to the first arm (12) and that extends almost in parallel with the muffler head (8) and the cylinder head (6).
5 - A compressor (1) as in Claim 4, characterized by the suction muffler (7) comprising the protrusion (11) having a bend (14) which connects the first arm
(12) to the second arm (13). 6 - A compressor (1) as in any of Claims 1 to 3, characterized by the suction muffler (7) comprising the protrusion (11) making a gap (15) between the protrusion (11) and the muffler head (8).
PCT/TR2016/050305 2015-10-08 2016-08-25 A compressor with a suction muffler Ceased WO2017061967A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201512474 2015-10-08
TR2015/12474 2015-10-08

Publications (1)

Publication Number Publication Date
WO2017061967A1 true WO2017061967A1 (en) 2017-04-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2016/050305 Ceased WO2017061967A1 (en) 2015-10-08 2016-08-25 A compressor with a suction muffler

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207564A (en) 1992-04-21 1993-05-04 White Consolidated Industries, Inc. Compressor head and suction muffler for hermetic compressor
US5577898A (en) * 1995-07-27 1996-11-26 Samsung Electronics Co., Ltd. Suction muffler arrangement for a hermetic reciprocating compressor
US5613842A (en) 1994-11-03 1997-03-25 Necchi Compressori S.R.L. Hermetically sealed motor compressor unit with a spring biased muffler
WO1998022712A1 (en) 1996-11-19 1998-05-28 Zanussi Elettromeccanica S.P.A. Improvement in the head and silencer of a refrigeration compressor
ZA200102993B (en) * 2001-04-11 2001-12-19 Kirloskar Copeland Ltd Improvements in or relating to hermetically sealed compressors.
EP1347174A1 (en) 2000-12-25 2003-09-24 Matsushita Refrigeration Company Closed compressor
US20140105762A1 (en) * 2011-06-10 2014-04-17 Takahisa Tobe Suction Muffler For Compressor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207564A (en) 1992-04-21 1993-05-04 White Consolidated Industries, Inc. Compressor head and suction muffler for hermetic compressor
US5613842A (en) 1994-11-03 1997-03-25 Necchi Compressori S.R.L. Hermetically sealed motor compressor unit with a spring biased muffler
US5577898A (en) * 1995-07-27 1996-11-26 Samsung Electronics Co., Ltd. Suction muffler arrangement for a hermetic reciprocating compressor
WO1998022712A1 (en) 1996-11-19 1998-05-28 Zanussi Elettromeccanica S.P.A. Improvement in the head and silencer of a refrigeration compressor
EP1347174A1 (en) 2000-12-25 2003-09-24 Matsushita Refrigeration Company Closed compressor
ZA200102993B (en) * 2001-04-11 2001-12-19 Kirloskar Copeland Ltd Improvements in or relating to hermetically sealed compressors.
US20140105762A1 (en) * 2011-06-10 2014-04-17 Takahisa Tobe Suction Muffler For Compressor

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