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WO2019034366A1 - A compressor with reduced levels of vibration and noise - Google Patents

A compressor with reduced levels of vibration and noise Download PDF

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Publication number
WO2019034366A1
WO2019034366A1 PCT/EP2018/069738 EP2018069738W WO2019034366A1 WO 2019034366 A1 WO2019034366 A1 WO 2019034366A1 EP 2018069738 W EP2018069738 W EP 2018069738W WO 2019034366 A1 WO2019034366 A1 WO 2019034366A1
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WO
WIPO (PCT)
Prior art keywords
engine
housing
compressor
coupling member
fixed
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/EP2018/069738
Other languages
French (fr)
Inventor
Ismail YESILAYDIN
Atilla Kaya
Ergin TASDELEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arcelik AS
Original Assignee
Arcelik AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Priority to EP18749736.7A priority Critical patent/EP3669077A1/en
Publication of WO2019034366A1 publication Critical patent/WO2019034366A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0044—Pulsation and noise damping means with vibration damping supports
    • 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
    • F04B39/121—Casings
    • 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
    • F04B39/127—Mounting of a cylinder block in a casing
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric

Definitions

  • the present invention relates to a compressor with improved performance, whose vibration and noise levels are reduced.
  • the electric engine used in driving a crank-connection rod mechanism, the cylinder-piston mechanism and other mechanisms are disposed in a sealing housing.
  • the loss occurring due to the efficiency of the electric engine being in the range of 70-80%, and the mechanical losses taking place particularly on the bearings, cause the parts in the compressor to heat up, and the volumetric yield to decrease due to the increased temperature of the coolant before entering the cylinder.
  • the vibration and the noise arising from the operation of the electric engine are sought to be reduced by keeping the electric engine on a plane by means of a plurality of springs, one ends of whose are fixed to the electric engine and the other ends to the housing. Higher the number of connection of the springs to the housing, more vibration and noise are transmitted to the housing.
  • an electric engine is suspended by four springs.
  • One ends of these springs are mounted to the spring retainers fixed on the housing by spot welding, and the other ends are mounted to the spring retainers fixed to the stator.
  • the aim of the present invention is to realize a compressor with reduced levels of vibration and noise.
  • the compressor realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims comprises at least one first coupling member whose ends are coupled to the engine and the housing, and at least one second coupling member coupled to the first coupling member.
  • the number of connections from the first and the second coupling members to the engine or the housing is thus reduced by at least one.
  • the compressor comprises at least one first coupling member whose one end is coupled to the engine and the other end to the housing, and at least one second coupling member coupled from at least one end to the first coupling member.
  • the compressor comprises a first coupling member whose one end is coupled to the engine and the other end to the housing, and one or more second coupling members whose at least one end coincides with the end of the first coupling member fixed to the engine or the stator.
  • the compressor comprises coupling members fixed from one end each to the engine, and fixed from a single point to the housing by joining at the center of the compressor.
  • first and the second coupling members fixed to the engine at the same point are coupled to the housing at separate points.
  • the compressor comprises at least two bases extending on the horizontal plane, disposed at the portion where the first and the second coupling members are fixed to the engine, to the housing or to each other, and two arms which are preferably "V" shaped, extending between the bases with a wide angle in between.
  • the first and the second coupling members are fixed to the engine, to the housing or to each other via the bases by means of fastening members.
  • a base is provided on both ends and the middle of the first and the second coupling members, and the two arms are disposed between the base at the middle and the bases at both ends.
  • the first and the second coupling members are springs.
  • leaf springs are used as springs.
  • an engine in a compressor is enabled to be suspended by means of coupling members, it is enabled to transmit to the housing at the minimum level vibration and noise arising from the operation of the engine, thereby minimizing the vibration and the noise levels of the compressor.
  • Figure 1 is a schematic view of a compressor.
  • Figure 2 is an exploded view of the engine, housing, and the first and the second coupling members.
  • Figure 3 is a side view of the first and the second coupling members.
  • Figure 4 is a perspective view of the first and the second coupling members in an embodiment of the invention.
  • Figure 5 is a perspective view of the first and the second coupling members in another embodiment of the invention.
  • the compressor (1) of the invention comprises a housing (2) enclosing the movable parts, a crank shaft rotating in the housing (2), and an engine (3) enabling the crank shaft to be rotated, having a stator (4) shaped as a hollow ring, with a ring shaped core and coils wound on the core, and a rotor mounted to the crank shaft by being passed through the space in the center of the stator (4), having a magnet rotating proportionally to the frequency of the feed current on the coils, and
  • the first coupling member (5) is coupled from one end to the engine (3) or to the housing (2), while the second coupling member (6) is coupled to the first coupling member (5).
  • the number of connections from the first and the second coupling members provided between the engine (3) and the housing (2), to the engine (3) or to the housing (2) is thus reduced by at least one.
  • the compressor (1) comprises a first and a second coupling member (5 and 6) fixed from at least one end each to the engine (3), and fixed at a single point to the housing (2) so as to join at the center of the compressor (1).
  • the first coupling member (5) is coupled from both of its ends to the engine (3), and is coupled at its middle to the housing (2).
  • the second coupling member (6) is coupled from both ends to the engine (3), and is coupled from its middle to the first coupling member (5) and via the first coupling member (5) to the housing (2). Therefore, the first and the second coupling members are coupled to the housing (2) not from two points but instead from only a single point ( Figure 3).
  • first and the second coupling members (5 and 6) are fixed via their ends at the same point to the engine (3), and at separate points to the housing (2).
  • the first and the second coupling members (5 and 6) are coupled to the engine (3) such that their two ends coincide, and are separately coupled from their middle portions to the housing (2).
  • the first and the second coupling members (5 and 6) are enabled to be coupled to the engine (3) at two points by superposing two ends of each, instead to couple the first and the second coupling members to the engine (3) from four ends at four separate points as required.
  • the compressor (1) comprises at least one first coupling member (5) whose one end is coupled to the engine (3) and the other end to the housing (2), and at least one second coupling member (6) coupled to the first coupling member (5) ( Figure 4).
  • the compressor (1) comprises a first coupling member (5) whose one end is fixed to the engine (3) and the other end to the housing (2), and one or more second coupling members (6) whose at least one end coincides with the end of the first coupling member (5) from which it is fixed to the engine (3) or to the stator (4).
  • the compressor (1) comprises at least two bases (7) extending on the horizontal plane, disposed at the portion where the first and the second coupling members (5 and 6) are fixed to the engine (3), to the housing (2) or to each other, and two arms (8) which are preferably "V" shaped, extending between the bases (7) with a wide angle in between.
  • the first and the second coupling members are fixed through the bases (7) to the engine (3), to the housing (2) or on each other by means of fastening members (9).
  • a base (7) is provided on both ends and the middle of the first and the second coupling members (5 and 6), and the two arms (8) are disposed between the base (7) at the middle, and the bases (7) at both ends.
  • the first and the second coupling members (5 and 6) are springs.
  • leaf springs are used as springs.
  • the coupling members disposed between the engine (3) and the housing (2) are enabled to be fixed to the engine (3) or the housing (2) from the minimum number of points possible. The vibration and the noise levels of the compressor (1) arising from the operation of the engine (3) are thus minimized.

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

Abstract

The compressor (1 ) of the invention comprises a housing (2) enclosing the movable parts, a crank shaft rotating in the housing (2), and an engine (3) enabling the crank shaft to be rotated, having a stator (4) shaped as a hollow ring, with a ring shaped core and coils wound on the core, and a rotor mounted to the crank shaft by being passed through the space in the center of the stator (4), having a magnet rotating proportionally to the frequency of the feed current on the coils.

Description

A COMPRESSOR WITH REDUCED LEVELS OF VIBRATION AND NOISE
The present invention relates to a compressor with improved performance, whose vibration and noise levels are reduced.
In hermetic type compressors, the electric engine used in driving a crank-connection rod mechanism, the cylinder-piston mechanism and other mechanisms are disposed in a sealing housing. The loss occurring due to the efficiency of the electric engine being in the range of 70-80%, and the mechanical losses taking place particularly on the bearings, cause the parts in the compressor to heat up, and the volumetric yield to decrease due to the increased temperature of the coolant before entering the cylinder. The vibration and the noise arising from the operation of the electric engine, are sought to be reduced by keeping the electric engine on a plane by means of a plurality of springs, one ends of whose are fixed to the electric engine and the other ends to the housing. Higher the number of connection of the springs to the housing, more vibration and noise are transmitted to the housing.
In the state of the art, an electric engine is suspended by four springs. One ends of these springs are mounted to the spring retainers fixed on the housing by spot welding, and the other ends are mounted to the spring retainers fixed to the stator.
State of the art United States patent no. US3441202 discloses fixing an engine unit to a housing by springs.
The aim of the present invention is to realize a compressor with reduced levels of vibration and noise.
The compressor realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises at least one first coupling member whose ends are coupled to the engine and the housing, and at least one second coupling member coupled to the first coupling member.
The number of connections from the first and the second coupling members to the engine or the housing is thus reduced by at least one.
The compressor comprises at least one first coupling member whose one end is coupled to the engine and the other end to the housing, and at least one second coupling member coupled from at least one end to the first coupling member.
In an embodiment of the invention, the compressor comprises a first coupling member whose one end is coupled to the engine and the other end to the housing, and one or more second coupling members whose at least one end coincides with the end of the first coupling member fixed to the engine or the stator.
In another embodiment of the invention, the compressor comprises coupling members fixed from one end each to the engine, and fixed from a single point to the housing by joining at the center of the compressor.
In another embodiment of the invention, the first and the second coupling members fixed to the engine at the same point, are coupled to the housing at separate points.
In an embodiment of the invention, the compressor comprises at least two bases extending on the horizontal plane, disposed at the portion where the first and the second coupling members are fixed to the engine, to the housing or to each other, and two arms which are preferably "V" shaped, extending between the bases with a wide angle in between. The first and the second coupling members are fixed to the engine, to the housing or to each other via the bases by means of fastening members. In the preferred embodiment of the invention, a base is provided on both ends and the middle of the first and the second coupling members, and the two arms are disposed between the base at the middle and the bases at both ends.
In an embodiment of the invention, the first and the second coupling members are springs. Preferably, leaf springs are used as springs.
With the invention, an engine in a compressor is enabled to be suspended by means of coupling members, it is enabled to transmit to the housing at the minimum level vibration and noise arising from the operation of the engine, thereby minimizing the vibration and the noise levels of the compressor.
The compressor realized to achieve the aims of the present invention is illustrated in the accompanying drawings, wherein:
Figure 1 is a schematic view of a compressor.
Figure 2 is an exploded view of the engine, housing, and the first and the second coupling members.
Figure 3 is a side view of the first and the second coupling members.
Figure 4 is a perspective view of the first and the second coupling members in an embodiment of the invention.
Figure 5 is a perspective view of the first and the second coupling members in another embodiment of the invention.
The elements in the figures are numbered individually and the correspondence of these numbers are given hereinafter.
  1. Compressor
  2. Housing
  3. Engine
  4. Stator
  5. First coupling member
  6. Second coupling member
  7. Base
  8. Arm
  9. Fastening member
The compressor (1) of the invention comprises a housing (2) enclosing the movable parts, a crank shaft rotating in the housing (2), and an engine (3) enabling the crank shaft to be rotated, having a stator (4) shaped as a hollow ring, with a ring shaped core and coils wound on the core, and a rotor mounted to the crank shaft by being passed through the space in the center of the stator (4), having a magnet rotating proportionally to the frequency of the feed current on the coils, and
  • at least one first coupling member (5) whose one end is coupled to the engine (3) and the other end to the housing (2), and
  • at least one second coupling member (6) coupled to the first coupling member (5) (Figure 1 and Figure 2).
In this embodiment of the invention, the first coupling member (5) is coupled from one end to the engine (3) or to the housing (2), while the second coupling member (6) is coupled to the first coupling member (5). The number of connections from the first and the second coupling members provided between the engine (3) and the housing (2), to the engine (3) or to the housing (2) is thus reduced by at least one.
In an embodiment of the invention, the compressor (1) comprises a first and a second coupling member (5 and 6) fixed from at least one end each to the engine (3), and fixed at a single point to the housing (2) so as to join at the center of the compressor (1). In this embodiment of the invention, the first coupling member (5) is coupled from both of its ends to the engine (3), and is coupled at its middle to the housing (2). In this case, the second coupling member (6) is coupled from both ends to the engine (3), and is coupled from its middle to the first coupling member (5) and via the first coupling member (5) to the housing (2). Therefore, the first and the second coupling members are coupled to the housing (2) not from two points but instead from only a single point (Figure 3).
In another embodiment of the invention, the first and the second coupling members (5 and 6) are fixed via their ends at the same point to the engine (3), and at separate points to the housing (2). In this embodiment of the invention, the first and the second coupling members (5 and 6) are coupled to the engine (3) such that their two ends coincide, and are separately coupled from their middle portions to the housing (2). In this case, the first and the second coupling members (5 and 6) are enabled to be coupled to the engine (3) at two points by superposing two ends of each, instead to couple the first and the second coupling members to the engine (3) from four ends at four separate points as required.
In another embodiment of the invention, the compressor (1) comprises at least one first coupling member (5) whose one end is coupled to the engine (3) and the other end to the housing (2), and at least one second coupling member (6) coupled to the first coupling member (5) (Figure 4).
In an embodiment of the invention, the compressor (1) comprises a first coupling member (5) whose one end is fixed to the engine (3) and the other end to the housing (2), and one or more second coupling members (6) whose at least one end coincides with the end of the first coupling member (5) from which it is fixed to the engine (3) or to the stator (4).
In an embodiment of the invention, the compressor (1) comprises at least two bases (7) extending on the horizontal plane, disposed at the portion where the first and the second coupling members (5 and 6) are fixed to the engine (3), to the housing (2) or to each other, and two arms (8) which are preferably "V" shaped, extending between the bases (7) with a wide angle in between. The first and the second coupling members are fixed through the bases (7) to the engine (3), to the housing (2) or on each other by means of fastening members (9). In the preferred embodiment of the invention, a base (7) is provided on both ends and the middle of the first and the second coupling members (5 and 6), and the two arms (8) are disposed between the base (7) at the middle, and the bases (7) at both ends.
In an embodiment of the invention, the first and the second coupling members (5 and 6) are springs. In the preferred embodiment of the invention, leaf springs are used as springs.
By means of the invention, the coupling members disposed between the engine (3) and the housing (2) are enabled to be fixed to the engine (3) or the housing (2) from the minimum number of points possible. The vibration and the noise levels of the compressor (1) arising from the operation of the engine (3) are thus minimized.

Claims (10)

  1. A compressor (1) comprising a housing (2) enclosing the movable parts, a crank shaft rotating in the housing (2), and an engine (3) enabling the crank shaft to be rotated, having a stator (4) shaped as a hollow ring, with a ring shaped core and coils wound on the core, and a rotor mounted to the crank shaft by being passed through the space in the center of the stator (4), having a magnet rotating proportionally to the frequency of the feed current on the coils, characterized by
    - at least one first coupling member (5) whose one end is connected to the engine (3) and the other end to the housing (2), and
    - at least one second coupling member (6) coupled to the first coupling member (5).
  2. A compressor (1) according to claim 1, characterized by a first and a second coupling member (5 and 6) fixed from at least one end each to the engine (3), and fixed at a single point to the housing (2) so as to join at the center of the compressor (1).
  3. A compressor (1) according to claim 2, characterized by the first coupling member (5) coupled from both ends to the engine (3), and from its middle to the housing (2), and by the second coupling member (6) coupled from both ends to the engine (3) and from its middle to the first coupling member (5), and via the first coupling member (5) to the housing (2).
  4. A compressor (1) according to claim 1, characterized by the first and the second coupling members (5 and 6) fixed via their ends at the same point to the engine (3), and at separate points to the housing (2).
  5. A compressor (1) according to claim 1 or 5, characterized by the first and the second coupling members (5 and 6) fixed to the engine (3) such that their two ends coincide, and coupled to the housing (2) separately from their middle portions.
  6. A compressor (1) according to claim 1, characterized by at least one first coupling member (5) whose one end is connected to the engine (3) and the other end to the housing (2), and by at least one second coupling member (6) coupled from at least one end to the first coupling member (5).
  7. A compressor (1) according to claim 1, characterized by a first coupling member (5) whose one end is fixed to the engine (3) and the other end to the housing (2), and by one or more second coupling members (6) whose at least one end coincides with the end of the first coupling member (5) from which it is fixed to the engine (3) or to the stator (4).
  8. A compressor (1) according to any one of the preceding claims, characterized by at least two bases (7) extending on the horizontal plane, disposed at the portion where the first and the second coupling members (5 and 6) are fixed to the engine (3), to the housing (2) or to each other, and by two arms (8) which are preferably "V" shaped, extending between the bases (7) with a wide angle in between.
  9. A compressor (1) according to any one of the preceding claims, characterized by the first and the second coupling members (5 and 6) being springs.
  10. A compressor (1) according to any one of the preceding claims, characterized by the first and the second coupling members (5 and 6) being leaf springs.
PCT/EP2018/069738 2017-08-15 2018-07-20 A compressor with reduced levels of vibration and noise Ceased WO2019034366A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18749736.7A EP3669077A1 (en) 2017-08-15 2018-07-20 A compressor with reduced levels of vibration and noise

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/12064A TR201712064A2 (en) 2017-08-15 2017-08-15 A Compressor With Reduced Vibration And Noise Level
TRA2017/12064 2017-08-15

Publications (1)

Publication Number Publication Date
WO2019034366A1 true WO2019034366A1 (en) 2019-02-21

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PCT/EP2018/069738 Ceased WO2019034366A1 (en) 2017-08-15 2018-07-20 A compressor with reduced levels of vibration and noise

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EP (1) EP3669077A1 (en)
TR (1) TR201712064A2 (en)
WO (1) WO2019034366A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4098874A1 (en) * 2021-06-04 2022-12-07 LG Electronics Inc. Compressor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441202A (en) 1966-03-22 1969-04-29 Danfoss As Noise dampening in hermetic refrigerant compressors
JPS60132080A (en) * 1983-12-21 1985-07-13 Matsushita Electric Ind Co Ltd Compressor vibration isolator
JPH0599143A (en) * 1991-04-11 1993-04-20 Mitsubishi Electric Corp Anti-vibration support device for compressor
US20020172607A1 (en) * 2001-05-18 2002-11-21 Lg Electronics, Inc. Oil supply apparatus for hermetic compressor
KR20040011285A (en) * 2002-07-30 2004-02-05 엘지전자 주식회사 Apparatus for reducing vibration of enclosed compressor
WO2004081379A2 (en) * 2003-03-11 2004-09-23 Lg Electronics Inc. Reciprocating compressor having vibration attenuating supporting unit
US20080023896A1 (en) * 2004-02-06 2008-01-31 Barrie Dudley Brewster Vibration Damper

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441202A (en) 1966-03-22 1969-04-29 Danfoss As Noise dampening in hermetic refrigerant compressors
JPS60132080A (en) * 1983-12-21 1985-07-13 Matsushita Electric Ind Co Ltd Compressor vibration isolator
JPH0599143A (en) * 1991-04-11 1993-04-20 Mitsubishi Electric Corp Anti-vibration support device for compressor
US20020172607A1 (en) * 2001-05-18 2002-11-21 Lg Electronics, Inc. Oil supply apparatus for hermetic compressor
KR20040011285A (en) * 2002-07-30 2004-02-05 엘지전자 주식회사 Apparatus for reducing vibration of enclosed compressor
WO2004081379A2 (en) * 2003-03-11 2004-09-23 Lg Electronics Inc. Reciprocating compressor having vibration attenuating supporting unit
US20080023896A1 (en) * 2004-02-06 2008-01-31 Barrie Dudley Brewster Vibration Damper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4098874A1 (en) * 2021-06-04 2022-12-07 LG Electronics Inc. Compressor
US11879446B2 (en) 2021-06-04 2024-01-23 Lg Electronics Inc. Compressor

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Publication number Publication date
EP3669077A1 (en) 2020-06-24
TR201712064A2 (en) 2019-03-21

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