KR0176824B1 - Noise reduction device of hermetic compressor - Google Patents
Noise reduction device of hermetic compressor Download PDFInfo
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- KR0176824B1 KR0176824B1 KR1019950024409A KR19950024409A KR0176824B1 KR 0176824 B1 KR0176824 B1 KR 0176824B1 KR 1019950024409 A KR1019950024409 A KR 1019950024409A KR 19950024409 A KR19950024409 A KR 19950024409A KR 0176824 B1 KR0176824 B1 KR 0176824B1
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- noise reduction
- reduction device
- hermetic compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
- F04C29/068—Silencing the silencing means being arranged inside the pump housing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/13—Noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/16—Wear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
본 발명에 의한 밀폐형 압축기의 소음저감 장치는 실린더 토출포트와 연접되어 압축된 냉매가스가 토출되는 베어링 포트에 베어링 재질보다 강재질로 형성된 공명피스를 압입하고, 상기 공명피스 내경에는 압축된 냉매가스의 소음저감을 위한 공명홈과 상기 공명홈과 공명피스 내경을 연접시키는 압력도입로를 형성함으로써 설치 및 가공이 용이하고 베어링보다 강한 재질을 사용하므로 밸브시트면의 가공정도를 향상시켜 베어링시트면의 마모를 방지하며, 공명홈의 체적을 용이하게 변경할 수 있으며, 베어링 담판의 강도저하가 없고, 변형이 작도록 하였다.The noise reduction device of the hermetic compressor according to the present invention injects a resonance piece formed of a steel material rather than a bearing material into a bearing port in which a compressed refrigerant gas is discharged in contact with a cylinder discharge port. Resonance grooves for noise reduction and pressure introduction paths connecting the resonance grooves and the inner diameter of the resonance piece are formed to facilitate the installation and processing. It is possible to easily change the volume of the resonance groove, there is no degradation of the strength of the bearing plate, and the deformation is small.
Description
제1도 일반적인 밀폐형 회전식 압축기를 나타내는 단면도.1 is a cross-sectional view showing a general hermetic rotary compressor.
제2도 종래의 기술에 의한 압축기의 토출포트부를 상세하게 나타낸 단면도.2 is a cross-sectional view showing in detail the discharge port of the compressor according to the prior art.
제3도는 본 발명에 의한 압축기의 소음저감 장치인 공명피스를 나타낸 것으로서,3 shows a resonance piece which is a noise reduction device of a compressor according to the present invention,
(a)는 평면도.(a) is a plan view.
(b)는 종단면도.(b) is a longitudinal cross-sectional view.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
6 : 실린더 10 : 상베어링6: cylinder 10: upper bearing
13 : 밸브 21 : 실린더 토출포트13 valve 21 cylinder discharge port
24 : 공명피스 24a : 압력도입로24: resonance piece 24a: pressure introduction
24b : 공명홈 24c : 토출공간24b: resonance groove 24c: discharge space
본 발명은 밀폐형 압축기의 소음저감 장치에 관한 것으로, 특히 설치 및 가공이 용이하고 베어링보다 강한 재질로서 밸브시트면의 가공정도를 향상시켜 베어링 시트면의 마모를 방지하며, 공명홈의 체적을 용이하게 변경할 수 있으며, 베어링 단판의 강도저하가 없고 변형이 적은 밀폐형 압축기의 소음저감 장치에 관한 것이다.The present invention relates to a noise reduction device of a hermetic compressor, and is particularly easy to install and process, and to improve the processing accuracy of the valve seat surface as a material stronger than the bearing, to prevent wear of the bearing seat surface, and to facilitate the volume of the resonance groove. The present invention relates to a noise reduction device of a hermetic compressor which is changeable and has no deterioration in strength of the bearing end plate and less deformation.
일반적인 밀폐형 회전식 압축기는 제1도에 도시한 바와 같이, 압축기 외부를 둘러 싸는 용기(1)가 있고, 이 용기의 내부 상면에 고정자(4) 및 회전자(5)로 구성되는 전동기구부가 설치되고, 상기 용기의 내면 하부에는 상기 회전자의 내경에 압입 고정되는 회전축(7)과, 상기 회전축의 하부에는 상베어링(10) 및 하베어링(9)이 보울트(11)로 결합되어 있는 실린더(6)로 구성되며, 상기 실린더는 편심축에 결합되어 실린더의 내경을 접하면서 회전하는 롤러(8)와, 상기 롤러와 접촉되면서 압축실 및 흡입실의 압축공간을 형성하는 베인(도면에 도시되지 않음)으로 구성되는 압축기구부가 형성되어 있다.A typical hermetic rotary compressor has a container (1) surrounding the outside of the compressor, as shown in FIG. 1, and an electric mechanism part including a stator (4) and a rotor (5) is installed on the inner upper surface of the container. In the lower part of the inner surface of the container, a rotary shaft 7 is press-fitted to the inner diameter of the rotor, and a lower cylinder of the upper bearing 10 and the lower bearing 9 is coupled to the cylinder (6) The cylinder is coupled to the eccentric shaft and the roller (8) rotates while contacting the inner diameter of the cylinder, and the vanes (not shown in the drawing) to form a compression space of the compression chamber and the suction chamber in contact with the roller The compression mechanism part which consists of) is formed.
상기 용기의 상단부에는 토출관(18)이 연결되고, 외측벽 하부에는 어큐뮬레이터(도면에 도시되지 않음)로 부터 냉매가스를 흡입하는 흡입관(17)이 설치되어 있다.A discharge pipe 18 is connected to the upper end of the container, and a suction pipe 17 for sucking refrigerant gas from an accumulator (not shown) is provided below the outer wall.
상기 전동기구부의 회전자에는 회전축의 편심부에 의한 회전축의 휨을 방지하기 위한 밸런스 웨이트(16)가 부착되어 있다.A balance weight 16 is attached to the rotor of the electric mechanism part to prevent bending of the rotating shaft by the eccentric portion of the rotating shaft.
상기 압축기구부의 실린더의 상단부 및 하단부에는 각각 상베어링 및 하베어링이 볼트에 의해 고정되어 실린더내의 밀폐공간을 형성한다.Upper and lower bearings are respectively fixed to the upper and lower ends of the cylinders of the compression mechanism by bolts to form a sealed space in the cylinder.
상기 상베어링(10)에는 실린더내의 밀폐공간에서 압축된 냉매가스를 배출하기 위한 토출밸브(13)가 형성되어 있고, 이 토출밸브는 실린더 내부의 압력에 따라 개폐되며, 그 행정은 토출밸브 상단에 설치된 스토퍼(14)에 의해 제한되며, 상기 상베어링(10)에는 상기 토출밸브를 거쳐 배출되는 냉매가스의 맥동음을 감소시키기 위한 소음기(15)가 설치되어 있다. 그리고 이 소음기의 상면에는 소음기를 거친 냉매가스가 빠져나가는 토출구(15')가 용기의 내면 상부를 향하도록 형성되어 있다.The upper bearing 10 is provided with a discharge valve 13 for discharging the compressed refrigerant gas in a closed space in the cylinder, the discharge valve is opened and closed in accordance with the pressure inside the cylinder, the stroke is at the top of the discharge valve Limited by the installed stopper 14, the upper bearing 10 is provided with a silencer 15 for reducing the pulsation sound of the refrigerant gas discharged through the discharge valve. On the upper surface of the silencer, a discharge port 15 'through which the refrigerant gas passing through the silencer is discharged is formed to face the upper portion of the inner surface of the container.
상기와 같이 구성된 종래의 기술에 의한 밀폐형 회전 압축기의 작동은 다음과 같다.The operation of the hermetic rotary compressor according to the related art configured as described above is as follows.
먼저 흡입관(17)을 통해 실린더 내부의 밀폐공간으로 흡입된 냉매가스는 롤러(8)의 회전에 의해 실린더(6)내에서 압축되고, 일정 압력이상으로 압축된 냉매가스는 상베어링(10)에 형성된 토출밸브(13)를 통해 소음기(15)쪽으로 배출된다. 이 소음기 내에서는 냉매가스의 맥동음이 제거되고, 소음기 상단에 형성된 토출구(15')를 거쳐 냉매가스가 토출된다. 이때 토출된 냉매가스는 회전자(5)와 고정자(4)의 틈새를 통하여 용기 상부에 있는 토출관(18)을 통해 압축기로 부터 토출되어 냉동사이클내를 순환하게 된다.First, the refrigerant gas sucked into the sealed space inside the cylinder through the suction pipe 17 is compressed in the cylinder 6 by the rotation of the roller 8, and the refrigerant gas compressed to a predetermined pressure or more is supplied to the upper bearing 10. The discharge valve 13 is discharged toward the silencer 15. In this silencer, the pulsation sound of the refrigerant gas is removed, and the refrigerant gas is discharged through the discharge port 15 'formed at the upper end of the silencer. At this time, the discharged refrigerant gas is discharged from the compressor through the discharge tube 18 in the upper portion of the vessel through the gap between the rotor 5 and the stator 4 to circulate in the refrigeration cycle.
실린더 내에서 압축된 냉매가스가 소음기 방향으로 배출되는 과정을 상술하면, 실린더 내의 상베어링과 하베어링과 롤러에 의해 형성된 공간이 회전축 편심부의 편심에 의해 일정지점까지 지속적으로 압축되어, 압축가스가 임계한도를 지났을 때 토출밸브(13)를 밀게 된다. 토출가스의 힘에 의해 토출밸브는 스토퍼(14)를 강제로 밀게 되고, 실린더 내부의 압력이 저하되었을 때 다시 토출밸브는 닫히게 되어 다음 임계압력까지 밀폐작용을 하게 된다.When the refrigerant gas compressed in the cylinder is discharged in the direction of the silencer, the space formed by the upper bearing, the lower bearing and the roller in the cylinder is continuously compressed to a certain point by the eccentricity of the rotating shaft, so that the compressed gas is critical. When the limit is passed, the discharge valve 13 is pushed. By the force of the discharge gas, the discharge valve forcibly pushes the stopper 14, and when the pressure inside the cylinder is lowered, the discharge valve is closed again, thereby closing the valve until the next critical pressure.
밀폐형 회전식 압축기의 l회전자와 고정자에 의하여 회전축이 1회전할때마다 실린더 내의 압축실에는 고압이 발생하며, 이때 발생한 고압이 토출밸브가 누르는 힘보다 크게 될 때 토출밸브가 열리게 되고, 압력이 낮아지면 닫히게 됨에 따라 1회전당 한 번씩의 개폐운동이 발생함과 아울러 많은 충격과 소음을 수반하게 된다.When the rotary shaft rotates once by the rotor and stator of the hermetic rotary compressor, a high pressure is generated in the compression chamber in the cylinder.At this time, the discharge valve opens when the high pressure is greater than the force applied by the discharge valve. As it is closed, one opening / closing movement occurs once per revolution and a lot of shock and noise are involved.
종래의 기술에 의한 밀폐형 압축기의 소음저감 장치와 함께 밸브주위를 상술하면 제2도에 도시한 바와 같이, 실린더의 토출포트 상부(21)에 상베어링(10)의 베어링 포트(22)를 형성하고, 상기 베어링포트의 상단면은 밸브가 접촉하는 밸브시트면(22a)이 형성되고, 상기 밸브의 상부에는 밸브의 개폐동작을 제한하는 스토퍼(14)가 섶치됨과 아울러, 상기 실린더(6)의 상단면과 상베어링(10)이 접하는 면에 공명홈(19)을 형성하고, 페쇄된 압축공간을 연통시키는 소단면적의 압력도입로(20)를 형성하여 압축된 가스가 토출될 때 공명홈(19)에 의하여 압력맥동을 줄여서 소음을 저감하는 역할을 하게 된다.Referring to the valve circumference with the noise reduction device of the hermetic compressor according to the prior art, as shown in FIG. 2, the bearing port 22 of the upper bearing 10 is formed in the upper portion of the discharge port 21 of the cylinder. The upper end of the bearing port is formed with a valve seat surface 22a in contact with the valve, and a stopper 14 for limiting the opening and closing operation of the valve is disposed on the upper portion of the valve, and the upper end of the cylinder 6 is provided. The resonance groove 19 is formed on the surface where the surface bearings 10 are in contact with each other, and the pressure introduction path 20 having a small cross-sectional area for communicating the closed compression space is formed to resonate when the compressed gas is discharged. ) To reduce the pressure pulsation to reduce noise.
그러나, 이러한 종래의 기술에서는 공명홈(19)을 형성하기 위한 가공과 공간형성이 매우 난이하고 특히 베어링 단판에 공명홈이 설치될 경우 공명홈이 설치된 부근은 베어링 강도가 현저하게 낮아져서 베어링 단판 변형의 주된 원인이 된다. 또한 밸브시트면(22a)에는 밸브의 개폐시 충격에 의한 마모가 심하고 마모가 계속하여 진전될 경우 누설의 원인이 되고 밸브시트면 자체의 가공도 상당히 난이한 문제점이 있다.However, in such a conventional technique, processing and space formation for forming the resonance groove 19 are very difficult, and especially when the resonance groove is installed in the bearing end plate, the vicinity of the resonance groove is significantly reduced in bearing strength so that the deformation of the bearing end plate is reduced. It is the main cause. In addition, the valve seat surface (22a) is a bad wear caused by the impact when opening and closing the valve, and if the wear continues to be a cause of leakage and the processing of the valve seat surface itself is also very difficult.
따라서, 본 발명의 목적은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 설치 및 가공이 용이하고 베어링보다 강한 재지로서 밸브시트면의 가공정도를 향상시켜 베어링시트면의 마모를 방지하며, 공명홈의 체적을 용이하게 변경할 수 있으며, 베어링 단판의 강도저하가 없고 변형이 적은 밀폐형 압축기의 소음저감 장치를 제공함에 있다.Accordingly, an object of the present invention is to devise to solve the above problems, it is easy to install and process and improve the processing accuracy of the valve seat surface as a strong base than the bearing to prevent wear of the bearing seat surface, the resonance groove It is possible to easily change the volume of the, and to provide a noise reduction device of the hermetic compressor without deformation of the bearing end plate and less deformation.
이러한 본 발명의 목적을 달성하기 위하여 실린더 토출포트와 연접되어 압축된 냉매가스가 토출되는 베어링 포트에 베어링 재질보다 강재질로 형성된 공명피스를 압입하고, 상기 공명피스 내경에는 압축된 냉매가스의 소음저감을 위한 공명홈과 상기 공명홈과 공명피스 내경을 연접시키는 압력도입로가 형성된 것을 특징으로 한 밀폐형 압축기의 소음저감 장치가 제공된다. 또한 상기 공명피스 내면에 있는 공명홈은 공명피스 내경의 원주방향으로 형성되어 있고, 다수개의 압력도입로와 연접되어 있는 것을 특징으로 한다.In order to achieve the object of the present invention, by injecting a resonance piece formed of a steel material than a bearing material in a bearing port in which the refrigerant gas compressed and discharged in contact with the cylinder discharge port is discharged, and the internal diameter of the resonance piece reduces noise of the compressed refrigerant gas. There is provided a noise reduction device for a hermetic compressor, characterized in that the pressure groove is formed to connect the resonance groove and the resonance piece and the inner diameter of the resonance groove. In addition, the resonance groove on the inner surface of the resonance piece is formed in the circumferential direction of the inner diameter of the resonance piece, it is characterized in that it is connected to a plurality of pressure introduction paths.
이하, 본 발명에 의한 밀폐형 압축기의 소음저감 장치를 첨부된 도면에 도시한 실시예에 따라서 설명한다. 제3도는 본 발명에 의한 밀폐형 회전식 압축기의 소음저감 장치인 공명피스를 나타낸 것으로, 제3(a)도는 평면도이고, 제3(b)도는 종단면도를 각각 보인 것이다.Hereinafter, a noise reduction device of a hermetic compressor according to the present invention will be described according to an embodiment shown in the accompanying drawings. Figure 3 shows a resonance piece which is a noise reduction device of the hermetic rotary compressor according to the present invention, Figure 3 (a) is a plan view, Figure 3 (b) is a longitudinal cross-sectional view, respectively.
이에 도시한 바와 같이, 본 발명에 의한 밀폐형 압축기의 소음저감 장치는 실린더 토출포트(21) 상부의 베어링포트에 주위의 베어링 재질보다 강재질로 형성된 공명피스(24)를 압입하여 설치한다. 상기 공명피스(24)는 중앙에 형성된 토출공간(24c)과, 그 토출공간 둘레에 원주방향으로 형성된 공명홈(24b)과, 상기 토출공간의 일측에 형성되며 토출공간(24c)과 공명홈(24b)을 연결하는 압력도입로(24a)로 구성된다.As shown in the drawing, the noise reduction device of the hermetic compressor according to the present invention press-installs the resonance piece 24 formed of steel material rather than the surrounding bearing material in the bearing port of the cylinder discharge port 21. The resonance piece 24 has a discharge space 24c formed in the center, a resonance groove 24b formed in a circumferential direction around the discharge space, and formed on one side of the discharge space, and having a discharge space 24c and a resonance groove ( It consists of a pressure introduction path 24a connecting 24b).
이와 같이 구성된 본 발명에 의한 밀폐형 압축기의 소음저감 장치의 작용효과를 설명하면 다음과 같다. 본 발명은 종래의 토출방식에 있어서 문제점을 개선하기 위한 것으로서, 베어링 재질은 주물로 이루어지며 베어링 재질보다 강한 재질인 소결금속으로 구성된 공명피스(24)를 베어링 포트에 압입 설치하게 된다. 공명피스(24)에는 공명홈(24b)이 원주방향으로 설치되어 있고 공명홈에는 공명피스의 내경쪽으로 연결되는 압력도입로(24a)가 설치되어 있다. 이 공명피스는 베어링 포트에 압입 설치되어 공명피스의 내경은 베어링 포트의 역할을 하고 공명피스(24)의 상부 단면은 밸브시트면 역할을 하며 압력도입로(24a)와 공명홈(24b)은 종래의 압력도입로와 공명홈과 같은 역할을 하게 된다. 동작은 상기한 종래의 동작과 같다.Referring to the effect of the noise reduction device of the hermetic compressor according to the present invention configured as described above are as follows. The present invention is to improve the problem in the conventional discharge method, the bearing material is made of a cast and the resonance piece 24 made of a sintered metal, which is a material stronger than the bearing material is press-installed in the bearing port. The resonance piece 24 is provided with a resonance groove 24b in the circumferential direction, and the resonance groove 24 is provided with a pressure induction path 24a connected to the inner diameter side of the resonance piece. The resonance piece is press-installed in the bearing port so that the inner diameter of the resonance piece serves as a bearing port, and the upper end face of the resonance piece 24 serves as a valve seat surface, and the pressure introduction path 24a and the resonance groove 24b are conventionally used. It acts as a pressure introduction path and a resonance groove. The operation is the same as the conventional operation described above.
이상에서 설명한 바와 같이, 본 발명에 의한 밀폐형 압축기의 소음저감 장치는 중앙에 형성된 토출공간과, 그 토출공간 둘레에 원주방향으로 형성된 공명홈과, 상기 토출공간의 일측에 형성되며 토출공간과 공명홈을 연결하는 압력도입로로 구성된 강재질의 공명피스를 실린더 토출포트 상부의 베어링포트에 압입하여 설치함으로써, 설치 및 가공이 용이하고 베어링보다 강한 재질을 사용하므로 밸브시트면의 가공정도를 향상시켜 베어링시트면의 마모를 방지하며, 공명홈의 체적을 용이하게 변경할 수 있으며, 베어링 단판의 강도저하가 없고 변형이 적은 효과가 있다.As described above, the noise reduction device of the hermetic compressor according to the present invention includes a discharge space formed in the center, a resonance groove formed in the circumferential direction around the discharge space, and formed on one side of the discharge space and having a discharge space and a resonance groove. Resonance piece made of steel made of pressure inlet path connected to the cylinder is press-fitted into the bearing port on the upper part of the cylinder discharge port, so that it is easy to install and process and uses a material stronger than the bearing. It prevents the wear of the surface, can easily change the volume of the resonance groove, there is no decrease in the strength of the bearing end plate and there is little effect of deformation.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950024409A KR0176824B1 (en) | 1995-08-08 | 1995-08-08 | Noise reduction device of hermetic compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950024409A KR0176824B1 (en) | 1995-08-08 | 1995-08-08 | Noise reduction device of hermetic compressor |
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| Publication Number | Publication Date |
|---|---|
| KR970011418A KR970011418A (en) | 1997-03-27 |
| KR0176824B1 true KR0176824B1 (en) | 1999-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950024409A KR0176824B1 (en) | 1995-08-08 | 1995-08-08 | Noise reduction device of hermetic compressor |
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| KR (1) | KR0176824B1 (en) |
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| KR970011418A (en) | 1997-03-27 |
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