EP1853821A2 - A compressor - Google Patents

A compressor

Info

Publication number
EP1853821A2
EP1853821A2 EP06710971A EP06710971A EP1853821A2 EP 1853821 A2 EP1853821 A2 EP 1853821A2 EP 06710971 A EP06710971 A EP 06710971A EP 06710971 A EP06710971 A EP 06710971A EP 1853821 A2 EP1853821 A2 EP 1853821A2
Authority
EP
European Patent Office
Prior art keywords
flow
compressor
refrigerant fluid
suction muffler
regulator
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.)
Withdrawn
Application number
EP06710971A
Other languages
German (de)
French (fr)
Inventor
Deniz Arcelik Anonim Sirketi SEKER
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 EP1853821A2 publication Critical patent/EP1853821A2/en
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the present invention relates to a compressor which comprises a suction muffler that diminishes the noise generated due to the refrigerant fluid.
  • the suction muffler in the hermetic compressors are used for the purpose of dampening the pressure waves generated as the valve plate opens and closes, and the piston makes a periodic compression-expansion movement while the compressor is operating, thereby decreasing the sound power level of the compressor.
  • the American Patent no. US 6714582 describes the filters arranged in the outlet and the inlet channels of a hermetically closed compressor where the refrigerant flows, for removing impurities inthe oil mixed into the refrigerant and to further attenuate the noise generated from the flow of the refrigerant.
  • the object of the present invention is the realization of a compressor which comprises a suction muffler that reduces the noise generated by the refrigerant fluid flowing therethrough to a minimum level by reducing its turbulence.
  • Figure 1 - is the sectional view of a compressor.
  • Figure 2 - is the A - A sectional view of a suction muffler.
  • Figures 3 to 7 - are the schematic views of alternative embodiments of the present invention.
  • Figure 8 - is the schematic view of a flow regulator having flow channels with hexagonal sections.
  • Figure 9 - is the schematic view of two flow regulators having flow channels with hexagonal sections and positioned in an eccentric manner with respect to each other.
  • the compressor (1) comprises a casing (2) wherein the operating components are stored, a cylinder (3) for pumping the refrigerant fluid, a cylinder head (4) situated on the cylinder (3) for directing the sucked and pumped refrigerant fluid and a suction muffler (5) which provides the refrigerant fluid to reach the cylinder (3) without heating up, and the reduction of the noise resulting from the refrigerant fluid.
  • the suction muffler (5) comprises a muffler shell (6) that forms its outer wall and stores the components in it, one or more muffler chambers (7) arranged within the muffler shell (6) and functioning for attenuating vibration , a suction orifice (8) allowing the inflow of the refrigerant fluid, a muffler head (9) which serves for mounting it on the cylinder head (4), an outlet orifice (10) situated on the muffler head (9) enabling the passage of the refrigerant fluid to the cylinder (3), one or more flow pipes (11) that pass through the muffler chambers (7) through which the refrigerant fluid flows, and one or more gaps (12) positioned over and/or between the flow pipes (11), serving to attenuate the pressure waves by dispersing the refrigerant fluid into the muffler chamber (7).
  • the suction muffler (5) comprises one or more flow regulators (14) positioned in the flow pipe (11) in the flow path of the refrigerant fluid, which regulates the flow, reducing the level of turbulence by intervening in the velocity changes of the refrigerant fluid motion.
  • the flow regulator (14) comprises more than one flow channels (13) through which the refrigerant fluid flows by spreading into more than one paths.
  • the flow regulator (14) forces the velocity components of the motion of refrigerant fluid to come to the direction of the flow channels (13) by means of the walls bounding the flow channels (13).
  • the velocity components of the motion of refrigerant fluid in different directions approach a minimum, and consequently the turbulence is reduced.
  • the flow regulators (14) are positioned at the outlet of the flow pipe (11) just before the gap (12) and/or at the inlet of another flow pipe (11) just after gap (12).
  • the suction muffler (5) comprises more than one, preferably two flow regulators (14) on the flow path of the refrigerant fluid, positioned one after the other.
  • the flow irregularities that can't be eliminated in the first flow regulator (14) on the flow path of the refrigerant fluid are eliminated in the second flow regulator (14).
  • more than one flow regulators (14) are positioned adjacently, and eccentrically with respect to each other in the flow direction of the flow channels (3), such that the flow passing from one flow regulator (14) to the other is deviated ( Figure 3). Consequently, the fluid leaving the flow channel (13) of one flow regulator (14) meets with the walls of the flow channel (13) of the other flow regulator (14) and the refrigerant fluid is forced to flow around these walls, spreading into more than one paths.
  • the flow regulators (14) are positioned eccentrically, the reduction of turbulence can be achieved by two adjacently situated flow regulators (14) having much shorter flow channels (13) than that of, for example, one flow regulator (14) having long flow channels (13).
  • the flow regulator (14) has inclined flow channels (13) ( Figure 4).
  • the refrigerant fluid for example,leaving the straight flow channel (13) of a flow regulator (14), meets with the inclined flow channels (13) of the other flow regulator (14) and is forced to flow by the walls along the inclined flow channels (13) reducing its turbulence level.
  • the flow regulator (14) is positioned behind the flow pipe (11) with the same distance (A) as that of the flow pipe (11) outlet ( Figure 5).
  • the refrigerant fluid leaving the flow regulator (14) flows through the flow pipe (11) along the distance (A) until reaching the gap (12), and its turbulence level is reduced along the distance (A) within the inner walls of the flow pipe (11) outlet.
  • the flow regulator (14) is positioned after the flow pipe (11) with the same distance (B) as that of the flow pipe (11) inlet ( Figure 6).
  • the refrigerant fluid entering the flow pipe (11) from the gap (12) flows through the flow pipe (11) as long as distance (B) until reaching the flow regulator (14) and its turbulence level is reduced along the distance (B) within the inner walls of the flow pipe (11) inlet.
  • the walls of the flow channels (13) have a hexagonal shape ( Figure 8).
  • the walls of the flow channels (13) occupy a minimum area and the reduction in the flow rate of the refrigerant fluid flowing through the flow channels (13) is prevented.
  • the refrigerant fluid circulating in the cooling cycle enters the suction muffler (5) through the suction orifice (8) and continues its motion in the first flow pipe (11) it enters. It goes through the flow regulator (14) situated at the outlet of the flow pipe (11) before leaving the flow pipe (11) and reaching the gap (12), and leaves the flow pipe (11) with reduced turbulence level.
  • the particles in the compressor (1) oil mixed into the refrigerant fluid can block the flow paths during the cooling cycle. Therefore, filters are positioned in the flow path in the suction muffler (5), preferably before the flow regulators (14) and the particles are prevented from clogging the flow regulators (14).
  • the flow regulator (14) reduces the turbulence level of the flow by geometrically decreasing the high velocity alterations of the fluid moving along the flow pipes (11) in the suction muffler (5) and contributes in the reduction of the noise power level.

Landscapes

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

Abstract

The present invention relates to a compressor (1) comprising a suction muffler (5) which reduces the turbulence of the refrigerant fluid flowing from the evaporator in the cooling cycle, and decreases the noise generated to the least level by intervening in the flow by means of arrangements made in its inner structure.

Description

Description A COMPRESSOR
[001] The present invention relates to a compressor which comprises a suction muffler that diminishes the noise generated due to the refrigerant fluid.
[002] The suction muffler in the hermetic compressors are used for the purpose of dampening the pressure waves generated as the valve plate opens and closes, and the piston makes a periodic compression-expansion movement while the compressor is operating, thereby decreasing the sound power level of the compressor. There are chambers, passage pipes and openings for the purpose of diminishing the sound power level within the geometry of the suction mufflers. Vortexes are formed while the refrigerant fluid flowing through the passage pipes are ejected into the chambers from the openings. Thus formed vortexes increase the sound power level.
[003] The American Patent no. US 6714582 describes the filters arranged in the outlet and the inlet channels of a hermetically closed compressor where the refrigerant flows, for removing impurities inthe oil mixed into the refrigerant and to further attenuate the noise generated from the flow of the refrigerant.
[004] In the Japanese Patents no. JP 60233383 and JP 61104171, the mufflers used in compressors having filters are described, which are arranged in the inlets where the refrigerant fluid enters into the muffler.
[005] The object of the present invention is the realization of a compressor which comprises a suction muffler that reduces the noise generated by the refrigerant fluid flowing therethrough to a minimum level by reducing its turbulence.
[006] The compressor realized in order to attain above mentioned aim of the present invention is shown in the attached figures, where:
[007] Figure 1 - is the sectional view of a compressor.
[008] Figure 2 - is the A - A sectional view of a suction muffler.
[009] Figures 3 to 7 - are the schematic views of alternative embodiments of the present invention.
[010] Figure 8 - is the schematic view of a flow regulator having flow channels with hexagonal sections.
[011] Figure 9 - is the schematic view of two flow regulators having flow channels with hexagonal sections and positioned in an eccentric manner with respect to each other.
[012] Elements shown in the figures are numbered as follows:
1. Compressor
2. Casing
3. Cylinder
4. Cylinder head 5. Suction muffler
6. Muffler shell
7. Muffler chamber
8. Suction orifice
9. Muffler head
10. Outlet orifice
11. Flow pipe
12. Gap
13. Flow channel
14. Flow regulator
[013] The compressor (1) comprises a casing (2) wherein the operating components are stored, a cylinder (3) for pumping the refrigerant fluid, a cylinder head (4) situated on the cylinder (3) for directing the sucked and pumped refrigerant fluid and a suction muffler (5) which provides the refrigerant fluid to reach the cylinder (3) without heating up, and the reduction of the noise resulting from the refrigerant fluid.
[014] The suction muffler (5) comprises a muffler shell (6) that forms its outer wall and stores the components in it, one or more muffler chambers (7) arranged within the muffler shell (6) and functioning for attenuating vibration , a suction orifice (8) allowing the inflow of the refrigerant fluid, a muffler head (9) which serves for mounting it on the cylinder head (4), an outlet orifice (10) situated on the muffler head (9) enabling the passage of the refrigerant fluid to the cylinder (3), one or more flow pipes (11) that pass through the muffler chambers (7) through which the refrigerant fluid flows, and one or more gaps (12) positioned over and/or between the flow pipes (11), serving to attenuate the pressure waves by dispersing the refrigerant fluid into the muffler chamber (7).
[015] The suction muffler (5) comprises one or more flow regulators (14) positioned in the flow pipe (11) in the flow path of the refrigerant fluid, which regulates the flow, reducing the level of turbulence by intervening in the velocity changes of the refrigerant fluid motion.
[016] The flow regulator (14) comprises more than one flow channels (13) through which the refrigerant fluid flows by spreading into more than one paths.
[017] The flow regulator (14) forces the velocity components of the motion of refrigerant fluid to come to the direction of the flow channels (13) by means of the walls bounding the flow channels (13). The velocity components of the motion of refrigerant fluid in different directions approach a minimum, and consequently the turbulence is reduced.
[018] The fluid, making a flow motion in different directions and entering from the inlet of the flow channel (13) due to the pipe structure and the certain length of the flow channels (13), collides on the inner walls and leaves the flow channel (13) in the direction of the flow channel (13).
[019] In the preferred embodiment of the present invention, the flow regulators (14) are positioned at the outlet of the flow pipe (11) just before the gap (12) and/or at the inlet of another flow pipe (11) just after gap (12).
[020] In one embodiment of the present invention, the suction muffler (5) comprises more than one, preferably two flow regulators (14) on the flow path of the refrigerant fluid, positioned one after the other. In this embodiment, the flow irregularities that can't be eliminated in the first flow regulator (14) on the flow path of the refrigerant fluid, are eliminated in the second flow regulator (14).
[021] In the above mentioned embodiment, more than one flow regulators (14) are positioned adjacently, and eccentrically with respect to each other in the flow direction of the flow channels (3), such that the flow passing from one flow regulator (14) to the other is deviated (Figure 3). Consequently, the fluid leaving the flow channel (13) of one flow regulator (14) meets with the walls of the flow channel (13) of the other flow regulator (14) and the refrigerant fluid is forced to flow around these walls, spreading into more than one paths. When the flow regulators (14) are positioned eccentrically, the reduction of turbulence can be achieved by two adjacently situated flow regulators (14) having much shorter flow channels (13) than that of, for example, one flow regulator (14) having long flow channels (13).
[022] In another embodiment of the present invention, the flow regulator (14) has inclined flow channels (13) (Figure 4). In this embodiment, the refrigerant fluid, for example,leaving the straight flow channel (13) of a flow regulator (14), meets with the inclined flow channels (13) of the other flow regulator (14) and is forced to flow by the walls along the inclined flow channels (13) reducing its turbulence level.
[023] In a different embodiment of the present invention, the flow regulator (14) is positioned behind the flow pipe (11) with the same distance (A) as that of the flow pipe (11) outlet (Figure 5). In this embodiment, the refrigerant fluid leaving the flow regulator (14) flows through the flow pipe (11) along the distance (A) until reaching the gap (12), and its turbulence level is reduced along the distance (A) within the inner walls of the flow pipe (11) outlet.
[024] In yet another embodiment of the present invention, the flow regulator (14) is positioned after the flow pipe (11) with the same distance (B) as that of the flow pipe (11) inlet (Figure 6). In this embodiment, the refrigerant fluid entering the flow pipe (11) from the gap (12), flows through the flow pipe (11) as long as distance (B) until reaching the flow regulator (14) and its turbulence level is reduced along the distance (B) within the inner walls of the flow pipe (11) inlet.
[025] In another embodiment of the present invention, there exists a distance (D) between the two flow regulators (14) that are situated at the end of the flow pipe (11), which contribute to the reduction of the turbulence level (Figure 7). In this embodiment, the turbulence of the refrigerant fluid leaving the first flow regulator (14) continues decreasing along this distance (D) and the turbulence is reduced to the lowest level in the second flow regulator (14).
[026] In another embodiment of the present invention, the walls of the flow channels (13) have a hexagonal shape (Figure 8). In this embodiment, the walls of the flow channels (13) occupy a minimum area and the reduction in the flow rate of the refrigerant fluid flowing through the flow channels (13) is prevented.
[027] The refrigerant fluid circulating in the cooling cycle enters the suction muffler (5) through the suction orifice (8) and continues its motion in the first flow pipe (11) it enters. It goes through the flow regulator (14) situated at the outlet of the flow pipe (11) before leaving the flow pipe (11) and reaching the gap (12), and leaves the flow pipe (11) with reduced turbulence level. The particles in the compressor (1) oil mixed into the refrigerant fluid can block the flow paths during the cooling cycle. Therefore, filters are positioned in the flow path in the suction muffler (5), preferably before the flow regulators (14) and the particles are prevented from clogging the flow regulators (14). The refrigerant fluid that reaches the gap (12) with some of it dispersed in the suction chamber (7), passes through the flow regulator (14) while entering the next flow pipe (11) it comes across and the turbulence that increases a little in the gap (12) is again brought to the desired level within the second flow pipe (11).
[028] The flow regulator (14) reduces the turbulence level of the flow by geometrically decreasing the high velocity alterations of the fluid moving along the flow pipes (11) in the suction muffler (5) and contributes in the reduction of the noise power level.

Claims

Claims
[001] A compressor (1) comprising a casing (2) wherein the operating components are stored, and a cylinder (3) for pumping the refrigerant fluid, and characterized by a suction muffler (5) having a flow regulator (14) positioned in the flow pipe (11) in the flow path of the refrigerant fluid, having one or more flow pipes (11) through which the refrigerant fluid flows, more than one flow channel (13) where the refrigerant fluid passes by spreading into more than one paths, and which forces the velocity components of the motion of refrigerant fluid to come into the direction of the flow channels (13) by means of the walls bounding the flow channels (13) and reduces the turbulence.
[002] A compressor (1) as in Claim 1, characterized by a suction muffler (5) having more than one flow regulator (14) positioned successively .
[003] A compressor (1) as in Claim 2, characterized by a suction muffler (5) having more than one flow regulators (14) with its flow channels (13) positioned eccentrically with respect to each other, in such a way that the flow is deviated from one flow regulator (14) to the other.
[004] A compressor (1) as in any one of the above Claims, characterized by a suction muffler (5) comprising a flow regulator (14) having inclined flow channels (13).
[005] A compressor (1) as in any one of the above Claims, characterized by a suction muffler (5) comprising two flow regulators (14) situated in the flow pipes (11) spaced with as much a distance (D) that will contribute in the reduction of the turbulence level.
[006] A compressor (1) as in any one of the Claims 1 to 4, characterized by a suction muffler (5) comprising a flow regulator (14) situated behind the flow pipe (11), spaced with a distance (A) as much as that of its outlet.
[007] A compressor (1) as in any one of the Claims 1 to 4, characterized by a suction muffler (5) comprising a flow regulator (14) situated in front of the flow pipe (1 l)spaced with a distance (B) as much as that of its inlet.
[008] A compressor (1) as in any one of the above Claims , characterized by a suction muffler (5) comprising one or more gaps (12) positioned over and/or between the flow pipes (11) providing the attenuation of the pressure waves, and a flow regulator (14) situated at the outlet of the flow pipe (11) just before the gap (12) and/or situated at the inlet of another flow pipe (11) just after the gap (12).
EP06710971A 2005-02-28 2006-02-27 A compressor Withdrawn EP1853821A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200500678 2005-02-28
PCT/IB2006/050600 WO2006090345A2 (en) 2005-02-28 2006-02-27 A compressor

Publications (1)

Publication Number Publication Date
EP1853821A2 true EP1853821A2 (en) 2007-11-14

Family

ID=36763242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06710971A Withdrawn EP1853821A2 (en) 2005-02-28 2006-02-27 A compressor

Country Status (4)

Country Link
EP (1) EP1853821A2 (en)
CN (1) CN101128670B (en)
BR (1) BRPI0607189A2 (en)
WO (1) WO2006090345A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008031679A1 (en) * 2006-09-14 2008-03-20 Arcelik Anonim Sirketi A compressor
US8899378B2 (en) 2011-09-13 2014-12-02 Black & Decker Inc. Compressor intake muffler and filter
AU2012216658B2 (en) 2011-09-13 2016-09-15 Black & Decker Inc Method of reducing air compressor noise
CN102720653B (en) * 2012-06-20 2014-08-20 常熟市天银机电股份有限公司 Suction muffler for compressor
US11111913B2 (en) 2015-10-07 2021-09-07 Black & Decker Inc. Oil lubricated compressor
CN112343796A (en) * 2020-12-11 2021-02-09 黄石东贝电器股份有限公司 Suction muffler with honeycomb hole structure and compressor

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Publication number Priority date Publication date Assignee Title
US4477229A (en) * 1982-08-25 1984-10-16 Carrier Corporation Compressor assembly and method of attaching a suction muffler thereto
JPS60233383A (en) 1984-05-04 1985-11-20 Matsushita Refrig Co Rotary compressor
JPS61104171A (en) 1984-10-25 1986-05-22 Mitsubishi Electric Corp Construction of intake silencer of enclosed compressor
KR940003845Y1 (en) * 1991-12-28 1994-06-15 주식회사 금성사 Compressor
US5443371A (en) * 1994-12-12 1995-08-22 Tecumseh Products Company Noise damper for hermetic compressors
KR100194150B1 (en) * 1995-12-05 1999-06-15 윤종용 Hermetic reciprocating compressor
TW318529U (en) * 1996-12-06 1997-10-21 Chen Jen Shiung Structure of exhaust pipe with pressure adjustment and sound volume adjustment functions
KR100378803B1 (en) * 2000-06-12 2003-04-07 엘지전자 주식회사 Muffler for compressor
DE10114327C2 (en) 2001-03-23 2003-07-03 Danfoss Compressors Gmbh suction silencer
KR100504983B1 (en) * 2003-03-12 2005-08-01 삼성광주전자 주식회사 A suction muffler for compressor, A compressor and A apparatus having refrigerant cycle circuit

Non-Patent Citations (1)

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Title
See references of WO2006090345A2 *

Also Published As

Publication number Publication date
WO2006090345A3 (en) 2006-11-09
BRPI0607189A2 (en) 2009-08-11
CN101128670A (en) 2008-02-20
CN101128670B (en) 2010-05-19
WO2006090345A2 (en) 2006-08-31

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