KR20010037803A - Noise reducing device of an enclosed reciprocating compressor using a side branch resonator - Google Patents
Noise reducing device of an enclosed reciprocating compressor using a side branch resonator Download PDFInfo
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- KR20010037803A KR20010037803A KR1019990045506A KR19990045506A KR20010037803A KR 20010037803 A KR20010037803 A KR 20010037803A KR 1019990045506 A KR1019990045506 A KR 1019990045506A KR 19990045506 A KR19990045506 A KR 19990045506A KR 20010037803 A KR20010037803 A KR 20010037803A
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- Prior art keywords
- discharge
- muffler
- noise
- valve
- gasket
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- 239000003507 refrigerant Substances 0.000 abstract description 21
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 230000033001 locomotion Effects 0.000 description 6
- 230000010349 pulsation Effects 0.000 description 4
- 230000003584 silencer Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
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- 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
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1066—Valve plates
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- 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
- F04B39/122—Cylinder block
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/12—Kind or type gaseous, i.e. compressible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
- F05B2260/962—Preventing, counteracting or reducing vibration or noise by means creating "anti-noise"
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
- Y10S417/902—Hermetically sealed motor pump unit
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
Description
본 발명은 냉장고의 냉동싸이클을 위한 밀폐형 압축기에 관한 것으로서, 특히 왕복동식형의 압축기로서 측지 공명기(side branch resonator)를 채용하여 압축기의 소음, 특히 특정 주파수대의 소음을 감소시키도록 구성된 압축기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic compressor for a refrigeration cycle of a refrigerator, and more particularly to a compressor configured to reduce the noise of a compressor, especially a specific frequency band, by employing a side branch resonator as a reciprocating compressor. .
압축기는 일반적으로 증발이 쉽게 이루어지도록 증발된 저온, 저압의 냉매증기를 흡입하는 펌프의 역할, 흡수된 증기를 쉽게 응축될 수 있도록 고온, 고압의 증기로 압축하는 역할 및 압축의 힘으로 냉매를 냉동기 내에 순환시키는 역할을 연속적으로 행하는 냉장고 부품이다. 그러므로 압축기는 증발압력, 응축압력등과 같은 압력과, 압축비, 피스턴 배출량, 냉매의 종류, 고온 고압으로 압축된 냉매증기를 응축시키기 위하여 공급하는 공기나 물(응축재)의 온도와 유동상태에 따라 그 구조 및 형태, 작동방법에 많은 차이가 있다.The compressor generally serves as a pump for sucking low-temperature and low-pressure refrigerant vapor evaporated to facilitate evaporation, compressing the absorbed vapor into high-temperature and high-pressure steam for easy condensation, and compressing the refrigerant with a compression force. It is a refrigerator component which performs the role which circulates continuously inside. Therefore, the compressor is used according to the pressure such as evaporation pressure and condensation pressure, and the compression ratio, piston output, type of refrigerant, temperature and flow state of air or water (condensing material) supplied to condense the refrigerant vapor compressed to high temperature and high pressure. There are many differences in the structure, form and method of operation.
이러한 압축기의 종류에는 피스톤의 왕복운동을 통해서 냉매가스를 압축하는 왕복동식 압축기와, 실린더 내의 회전자를 회전시켜 냉매가스를 압축하는 회전식 압축기 및 임펠러의 원심력을 이용하여 속도에너지를 압력에너지로 변환시켜 냉매가스를 압축하는 터보 압축기등이 있다.This type of compressor includes a reciprocating compressor that compresses refrigerant gas through a reciprocating motion of a piston, a rotary compressor that rotates a rotor in a cylinder, and converts velocity energy into pressure energy using centrifugal force of an impeller. And a turbo compressor for compressing refrigerant gas.
도 1a는 종래기술에 따른 밀폐형 왕복동식 압축기의 평단면도이고, 도 1b는 그 정단면도이다.FIG. 1A is a plan sectional view of a hermetic reciprocating compressor according to the prior art, and FIG. 1B is a front sectional view thereof.
도시된 압축기에는 용접에 의해 밀폐된 상하부 케이스(10,20)에 압축기 본체가 내장되어 있다. 압축기 본체는 크게 프레임(30)과, 프레임의 하부에 설치되어 전동매체인 샤프트(60)를 회전시키는 모터부(40)와, 샤프트(60)의 회전운동을 직선운동으로 변환하여 흡입된 냉매가스를 압축 및 토출시키는 기계부(50)로 구성되어 있다.In the illustrated compressor, a compressor body is built in upper and lower cases 10 and 20 sealed by welding. The compressor main body is largely provided with a frame 30, a motor unit 40 installed at a lower portion of the frame to rotate the shaft 60, which is a transmission medium, and a refrigerant gas sucked by converting the rotational movement of the shaft 60 into linear movement. It consists of a mechanical part 50 which compresses and discharges.
프레임(30)은 모터부(40)와 기계부(50) 전체를 지지하며, 상하부 케이스(10,20)에 각각 완충 및 소음방지 수단인 사이드 스토퍼(70)와 코일 스프링(80)을 통하여 지지된다.The frame 30 supports the entire motor portion 40 and the mechanical portion 50, and is supported by the upper and lower cases 10 and 20 through side stoppers 70 and coil springs 80, which are cushioning and noise preventing means, respectively. do.
기계부(50)는 프레임 상단에 고정되는 실린더(110)와, 실린더(110)에 삽입되어 직선 왕복운동을 하는 피스톤(120) 및 상기 피스톤(120)과 샤프트(60)의 크랭크부(61) 사이에 연결되어 샤프트(60)의 회전운동을 직선운동으로 변환시켜 주는 피스톤 로드(130)로 구성되어 있다. 따라서, 모터부(40)에 의해 회전하는 샤프트(60)가 크랭크부(61)를 통하여 기계부(50)의 피스톤 로드(130)를 왕복운동시킴으로써 피스톤(120)이 실린더(110) 내에서 직선 왕복운동을 하여 실린더(110) 내로 흡입된 냉매가스를 압축 및 토출시켜 주고, 냉매가스는 냉동장치를 순환하면서 피냉각물체로부터 열을 빼앗아 소정의 냉동목적을 달성하게 된다.The mechanical part 50 includes a cylinder 110 fixed to the upper end of the frame, a piston 120 inserted into the cylinder 110 to linearly reciprocate, and a crank part 61 of the piston 120 and the shaft 60. Is connected to the piston rod 130 is configured to convert the rotational movement of the shaft 60 to a linear movement. Thus, the shaft 120 rotated by the motor portion 40 reciprocates the piston rod 130 of the mechanical portion 50 through the crank portion 61 so that the piston 120 is linear in the cylinder 110. The reciprocating motion compresses and discharges the refrigerant gas sucked into the cylinder 110, and the refrigerant gas takes heat from the object to be cooled while circulating the refrigeration apparatus to achieve a predetermined refrigeration purpose.
또한, 실린더(110)의 일측에는 흡입 및 토출밸브를 구비하는 밸브 플레이트(140)가 설치되어 있고, 밸브 플레이트의 외측에는 냉매가스의 흡입 및 토출을 안내하는 흡입 및 토출 머플러(150,160)가 설치되어 있으며, 흡입 및 토출 머플러에는 각각 흡입 및 토출 파이프(170,180)가 연결된다. 토출 머플러(160)는 실린더(110)에서 압축된 고온·고압의 냉매가스가 토출되는 토출측에 설치되어 냉매가스의 토출시 압력의 맥동에 의한 소음발생을 감소시키게 된다.In addition, a valve plate 140 having suction and discharge valves is installed at one side of the cylinder 110, and suction and discharge mufflers 150 and 160 which guide suction and discharge of refrigerant gas are installed outside the valve plate. The suction and discharge mufflers are connected to suction and discharge pipes 170 and 180, respectively. The discharge muffler 160 is installed on the discharge side through which the high-temperature / high-pressure refrigerant gas compressed from the cylinder 110 is discharged to reduce noise generated by the pulsation of the pressure during the discharge of the refrigerant gas.
도 2는 종래 토출 머플러의 구조를 나타낸 개략적인 조립 평단면도이다.2 is a schematic sectional plan view showing the structure of a conventional discharge muffler.
토출 머플러(260)는 밸브 플레이트(140)와 함께 실린더(110)의 토출 측에 체결되며 냉매가스의 흡입을 위한 흡입구와 토출구 및 배출구를 구비하는 머플러 플레이트(270)와, 토출 및 배출구와 연통되는 1차방을 구비하며 내판과 외판으로 구성되는 밸브커버(280)와, 머플러 플레이트(270)의 배출구 측에 접합되며 배출구와 연통되는 2차방을 구비하는 머플러컵(290)과, 머플러컵(290)에 접합되는 토출파이프(180)와, 머플러컵(290)의 측면부에 연결 파이프(310)를 통하여 연결되는 별도의 공명형 소음기(300)로 구성되어 있다.The discharge muffler 260 is coupled to the discharge side of the cylinder 110 together with the valve plate 140 and is in communication with the discharge plate and the muffler plate 270 having an inlet, an outlet, and an outlet for suction of refrigerant gas. A muffler cup 290 having a primary chamber and a valve cover 280 composed of an inner plate and an outer plate, a secondary chamber joined to the outlet side of the muffler plate 270 and communicating with the outlet, and a muffler cup 290. It is composed of a discharge pipe 180 is joined to the separate resonance type silencer 300 is connected to the side portion of the muffler cup 290 via a connecting pipe 310.
이와 같은 토출 머플러(260)는 기계부(50)의 피스톤(120)이 샤프트(60)에 의해 왕복운동을 하면서 실린더(110) 내의 냉매가스를 압축하면, 이 냉매가스가 머플러 플레이트(270)의 토출구를 통하여 밸브커버(280)의 1차방으로 토출된 다음, 다시 배출구와 머플러컵(290) 및 토출 파이프(180)를 통하여 토출되도록 되어있다. 이 때, 토출시 발생하였던 냉매가스의 맥동음 및 밸브의 타격음은 머플러컵(290)과 연결 파이프(310)로 연결된 공명형 소음기(300)를 통과하면서 투과손실에 의해 감쇠되어진다.The discharge muffler 260 compresses the refrigerant gas in the cylinder 110 while the piston 120 of the mechanical part 50 reciprocates by the shaft 60. After the discharge port is discharged to the first direction of the valve cover 280, it is discharged again through the discharge port, the muffler cup 290 and the discharge pipe 180. At this time, the pulsation sound of the refrigerant gas and the blow sound of the valve generated during the discharge are attenuated by the transmission loss while passing through the resonance silencer 300 connected to the muffler cup 290 and the connection pipe 310.
그러나, 상술한 바와 같은 밀폐형 왕복동식 압축기의 소음구조는 머플러컵(290)에 단순히 그와 동일한 형태의 공명형 소음기(300)를 부착한 것에 불과하므로 공명에 의한 투과손실량이 적어 토출 밸브의 타격음이나 냉매 압축으로 인해 발생하는 소음을 감쇠시키기에는 미약한 단점이 있다. 즉, 토출시 발생하였던 냉매가스의 밸브의 타격음이나 맥동음이 머플러컵과 공명형 소음기에 의해서 전량 감쇠되지 못할 뿐만 아니라, 큰 설치공간을 필요로한다는 문제점이 있었다.However, since the noise structure of the hermetic reciprocating compressor as described above is simply attached to the muffler cup 290, the resonance type silencer 300 of the same type has a small amount of transmission loss due to resonance, and thus the blow sound of the discharge valve There is a weak point to attenuate the noise caused by refrigerant compression. That is, the blow and pulsation noises of the valve of the refrigerant gas generated at the time of discharging are not all attenuated by the muffler cup and the resonance silencer, but also require a large installation space.
본 발명은 상술한 바와 같은 종래의 문제점을 해소하기 위하여 안출된 것으로, 압축기 작동시 토출밸브의 타격음이나 냉매 압축으로 인해 발생하는 소음 중에서 특정 주파수대의 소음을 감쇠시킬 수 있으면서, 설치공간을 거의 차지하지 않는 밀폐형 왕복동식 압축기의 소음구조를 제공하는 것이다.The present invention has been made to solve the conventional problems as described above, while being able to attenuate the noise of a specific frequency band from the noise generated by the blow sound of the discharge valve or the refrigerant compression during operation of the compressor, while occupying almost no space for installation To provide the noise structure of a hermetic reciprocating compressor.
이와 같은 목적을 달성하기 위하여 본 발명은 토출 머플러와, 토출 밸브와, 밸브 플레이트를 구비한 밀폐형 왕복동식 압축기에 있어서, 압축기의 발생 소음 중 소정의 주파수를 감쇠시킬 수 있는 크기를 가지며 상하로 개방된 측지 공명기를 갖는 개스킷과; 상기 개스킷 하방에 위치하며 상기 측지 공명기의 하방을 폐쇄하는 토출 머플러와; 상기 개스킷 상방에 위치하며 상기 측지 공명기의 상방을 폐쇄하는 토출밸브를 포함하는 것을 특징으로 하는 밀폐형 왕복동식 압축기를 제공한다.In order to achieve the above object, the present invention provides a sealed reciprocating compressor including a discharge muffler, a discharge valve, and a valve plate, the size of which is to attenuate a predetermined frequency among the noise generated by the compressor and is open up and down. A gasket having a geodetic resonator; A discharge muffler positioned below the gasket and closing the bottom of the geodetic resonator; It provides a sealed reciprocating compressor, characterized in that it comprises a discharge valve located above the gasket and closes the upper side of the geodetic resonator.
도 1a 및 도 1b는 종래기술에 따른 밀폐형 압축기의 평단면도 및 정단면도이고,1A and 1B are a plan sectional view and a front sectional view of a hermetic compressor according to the prior art,
도 2는 종래기술에 따른 토출 머플러의 평단면도이고,2 is a plan sectional view of a discharge muffler according to the prior art,
도 3은 본 발명에 따른 소음 저감장치의 토출 머플러, 개스킷, 토출 밸브 및 밸브 플레이트의 분해사시도이고,3 is an exploded perspective view of a discharge muffler, a gasket, a discharge valve, and a valve plate of the noise reduction device according to the present invention;
도 4는 도 3의 부재들이 볼트 구멍을 통해 정렬된 때의 평면도이다.4 is a plan view of the members of FIG. 3 when aligned through the bolt holes. FIG.
＜도면의 주요부분에 대한 부호의 설명＞<Description of the code | symbol about the principal part of drawing>
200 : 토출 머플러 210 : 개스킷200: discharge muffler 210: gasket
212 : 측지 공명기 220 : 토출 밸브212: geodetic resonator 220: discharge valve
230 : 밸브 플레이트230: valve plate
이와 같은 본 발명의 특징 및 이에 따른 작용효과는 후술하는 첨부된 도면을 참조한 발명의 상세한 설명을 통해 더욱 명확해 질 것이다.Such features of the present invention and the resulting effects thereof will become more apparent from the detailed description of the invention with reference to the accompanying drawings.
도 3에는, 본 발명에 따른 밀폐형 왕복동식 압축기 구조의 소음 저감구조에 채용된 토출 머플러(200)와, 토출 밸브(220)와 밸브 플레이트(230)의 사시도가 도시되어 있다. 상술한 부재들은 모두 종래와 동일한 구성으로 되어 있다.3 shows a perspective view of the discharge muffler 200, the discharge valve 220 and the valve plate 230 employed in the noise reduction structure of the hermetic reciprocating compressor structure according to the present invention. All the above-mentioned members have the same structure as before.
토출 머플러(200)는 냉매가 실린더로 유입되는 통로가 되는 흡입구(도시되지 않음)와, 냉매의 토출통로가 되는 토출실(도시되지 않음)과, 실린더 블록(도시되지 않음)의 체결을 위한 볼트구멍(208)등이 형성되어 있는 머플러 플레이트(201)와, 밸브 커버(206)로 나뉘어진다. 토출밸브(220)는 탄성을 지니는 리드형 박판 구조로 구성되며, 밸브플레이트(230)에는 흡입구와 토출구가 형성되어 있다.The discharge muffler 200 includes a suction port (not shown), which serves as a passage through which the refrigerant flows into the cylinder, a discharge chamber (not shown), which serves as a discharge passage of the refrigerant, and a bolt for fastening the cylinder block (not shown). The muffler plate 201 in which the holes 208 and the like are formed is divided into a valve cover 206. The discharge valve 220 is composed of a lead-type thin plate structure having an elasticity, the valve plate 230 is formed with the suction port and the discharge port.
또한, 도 3에는, 본 발명에 사용되는 개스킷(210)이 도시되어 있다. 개스킷(210)에는 특정 주파수대의 소음을 저감하도록 설계된 측지 공명기(side branch resonator;212)가 관통 절결형성되어 있다. 즉, 측지 공명기(212)는 그 크기가 특정 주파수대의 소음을 감쇠시킬 수 있도록 구성된다. 이와 같이 구성된 측지 공명기(212)는 도 4에 도시된 바와 같이, 토출 머플러(200)와, 개스킷(210), 토출 밸브(220) 및 밸브 플레이트(230)가 각각의 볼트 구멍(208,214,222,232)이 정렬된 채로 조립될 때, 체적을 갖는 공간을 형성하게 된다. 즉, 측지 공명기(212)의 하방은 토출 머플러(210)에 의해 그리고 그 상방은 토출 밸브(220)에 의해 폐쇄되어진다.Also shown in FIG. 3 is a gasket 210 used in the present invention. The gasket 210 has a side branch resonator 212 designed to reduce noise in a specific frequency band. That is, the geodetic resonator 212 is configured such that its magnitude can attenuate noise in a specific frequency band. As shown in FIG. 4, the geodetic resonator 212 configured as described above has the discharge muffler 200, the gasket 210, the discharge valve 220, and the valve plate 230 aligned with respective bolt holes 208, 214, 222, and 232. When assembled, they form a space with a volume. That is, the lower side of the geodetic resonator 212 is closed by the discharge muffler 210 and the upper side thereof is closed by the discharge valve 220.
이상에서는 본 발명을 바람직한 실시예와 관련하여 설명하였으나, 당업자라면 본 발명의 취지 및 첨부된 청구범위를 벗어나지 않는 한도 내에서 여러 가지로 변경 실시할 수도 있다는 점을 이해할 수 있을 것이다.While the invention has been described in connection with the preferred embodiment, those skilled in the art will appreciate that various modifications may be made without departing from the spirit of the invention and the appended claims.
이상에서 설명한 바와 같이 본 발명에 따른 밀폐형 왕복동식 압축기의 소음 저감 구조에 의하면, 밸브의 타격음 혹은 압축시의 맥동음등의 소음 중 특정 주파수를 갖는 소음을 간단한 구조로 제거할 수 있다.As described above, according to the noise reduction structure of the hermetic reciprocating compressor according to the present invention, it is possible to remove the noise having a specific frequency among the noises such as the blow sound of the valve or the pulsation sound during compression.
Claims (1)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990045506A KR100325058B1 (en) | 1999-10-20 | 1999-10-20 | Noise reducing device of an enclosed reciprocating compressor using a side branch resonator |
| JP2001531982A JP2003512568A (en) | 1999-10-20 | 2000-03-18 | Noise reduction device for reciprocating compressor using side branch silencer |
| PCT/KR2000/000237 WO2001029419A1 (en) | 1999-10-20 | 2000-03-18 | Noise reduction device for use in a reciprocating compressor using a side-branch silencer |
| GB0114819A GB2360552B (en) | 1999-10-20 | 2000-03-18 | Noise recuction device for use in a recprocating compressor |
| US09/533,254 US6533064B1 (en) | 1999-10-20 | 2000-03-23 | Noise reduction device for use in reciprocating compressor using a side-branch silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990045506A KR100325058B1 (en) | 1999-10-20 | 1999-10-20 | Noise reducing device of an enclosed reciprocating compressor using a side branch resonator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20010037803A true KR20010037803A (en) | 2001-05-15 |
| KR100325058B1 KR100325058B1 (en) | 2002-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019990045506A KR100325058B1 (en) | 1999-10-20 | 1999-10-20 | Noise reducing device of an enclosed reciprocating compressor using a side branch resonator |
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| KR (1) | KR100325058B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101038842B1 (en) * | 2008-10-30 | 2011-06-03 | 인하대학교 산학협력단 | Cake support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101038842B1 (en) * | 2008-10-30 | 2011-06-03 | 인하대학교 산학협력단 | Cake support |
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| KR100325058B1 (en) | 2002-02-20 |
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