KR100311466B1 - low pressure type rotary compressor - Google Patents
low pressure type rotary compressor Download PDFInfo
- Publication number
- KR100311466B1 KR100311466B1 KR1019980015699A KR19980015699A KR100311466B1 KR 100311466 B1 KR100311466 B1 KR 100311466B1 KR 1019980015699 A KR1019980015699 A KR 1019980015699A KR 19980015699 A KR19980015699 A KR 19980015699A KR 100311466 B1 KR100311466 B1 KR 100311466B1
- Authority
- KR
- South Korea
- Prior art keywords
- case
- motor
- compression unit
- low pressure
- suction pipe
- Prior art date
Links
Classifications
-
- 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
-
- 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
- F04B39/0066—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using sidebranch resonators, e.g. Helmholtz resonators
-
- 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
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
-
- 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
- F04C29/061—Silencers using overlapping frequencies, e.g. Helmholtz resonators
Abstract
Description
본 발명은 로타리 압축기 분야에 관한 것으로서, 더욱 상세하게는 내부 압력이 저압인 로타리 압축기에 관한 것이다.TECHNICAL FIELD The present invention relates to the field of rotary compressors, and more particularly, to a rotary compressor having a low internal pressure.
일반적으로 압축기는 공기조화기 및 냉장고 등에 설치되어 기체를 고온/고압으로 압축하기 위한 기기이다.In general, a compressor is installed in an air conditioner and a refrigerator, and is a device for compressing a gas at high temperature / high pressure.
그 중 로타리 압축기(rotary compressor)는 일반형과 인버터(inverter)형으로 대별되며, 상기 인버터형은 다시 종형과 횡형으로 나누어지는데, 종형과 횡형에 관계없이 동력을 발생시키는 모터부와, 모터부의 동력에 의해 회전되는 회전축과, 회전축의 회전력에 의해 냉매를 압축하는 압축부를 필수적으로 갖추고 있다.Among them, rotary compressors are roughly divided into general type and inverter type, and the inverter type is divided into vertical type and horizontal type, and the motor part generating power regardless of the vertical type and horizontal type, and the power of the motor part. And a compression unit for compressing the refrigerant by the rotational force of the rotating shaft and the rotating shaft.
종형은 상기 모터부, 회전축, 압축부가 상하방향으로 배열된 것이고, 횡형은 상기의 구성부분이 좌우방향으로 배열된 것이다.In the vertical type, the motor part, the rotation shaft, and the compression part are arranged in the vertical direction, and the horizontal type is the component part arranged in the left and right directions.
도 1은 그 중 횡형 로타리 압축기를 도시한 종단면도로서, 이의 구성은 상부와 일측부에 흡입파이프(1a)와 토출파이프(1b)가 각각 설치된 케이스(1)와, 상기 케이스내의 토출파이프(1b)측에 설치되어 동력을 발생시킬 수 있도록 고정자(2a)와 회전자(2b)로 이루어진 모터(2)와, 상기 모터에서 발생된 동력을 받아 회전하는 회전축(3)과, 상기 흡입파이프(1a)측에 설치되며 상기 회전축(3)의 회전력을 받아 냉매가스를 압축하여 토출시키는 압축부와, 상기 회전축(3)의 끝단에 설치되어 각종 습동부를 윤활하여 줄 수 있도록 윤활유를 펌핑하는 펌핑부등으로 구성되어 있다.1 is a vertical cross-sectional view of a horizontal rotary compressor, the configuration of which is a case (1) having a suction pipe (1a) and a discharge pipe (1b) are respectively provided on the upper and one side, and the discharge pipe (1b) in the case A motor (2) comprising a stator (2a) and a rotor (2b) so as to generate power, and a rotating shaft (3) rotating under the power generated by the motor, and the suction pipe (1a). And a compression unit for compressing and discharging the refrigerant gas under the rotational force of the rotary shaft 3, and a pumping unit for lubricating oil so as to lubricate various sliding parts at the end of the rotary shaft 3; It consists of.
상기에서 압축부는 흡입공(4a)이 형성된 실린더(4)와 메인, 서브베어링(5)(6)에 의해 압축실(7)이 형성되어 있으며, 상기 압축실내에는 회전축(3)에 일체로 형성된 편심축(8)이 위치되며, 상기 편심축(8)에는 롤링피스톤(9)이 끼워진 구조이다.In the compression section, the compression chamber 7 is formed by the cylinder 4, the main and sub-bearings 5, 6, on which the suction hole 4a is formed, and is formed integrally with the rotation shaft 3 in the compression chamber. An eccentric shaft 8 is located, and a rolling piston 9 is fitted to the eccentric shaft 8.
상기에서 펌핑부는 상기 회전축(3)의 일측 끝단에 설치되어 있는 프로펠러(3a)와, 상기 프로펠러의 회전력에 의해 케이스(1)의 바닥에 고여있는 오일을 각 습동부로 공급하기 위한 급유관(3b)으로 구성되어 있다.The pumping part is a propeller 3a installed at one end of the rotating shaft 3 and an oil supply pipe 3b for supplying oil accumulated at the bottom of the case 1 to each sliding part by the rotational force of the propeller. )
따라서 기기에 전원이 인가되어 케이스(1)내에 설치된 모터(2)의 회전자(2b)가 일정방향으로 회전하게 되면 상기 회전자(2b)에 결합되어 있는 회전축(3)도 동일방향으로 회전하게 된다.Therefore, when power is applied to the device and the rotor 2b of the motor 2 installed in the case 1 rotates in a predetermined direction, the rotating shaft 3 coupled to the rotor 2b also rotates in the same direction. do.
이와 동시에 상기 회전축(3)에 대해 편심되도록 형성된 편심축(8)과, 이 편심축의 외주연부에 끼워진 롤링피스톤(9)이 함께 회전하게 된다.At the same time, the eccentric shaft 8 formed so as to be eccentric with respect to the rotation shaft 3 and the rolling piston 9 fitted to the outer periphery of the eccentric shaft are rotated together.
이 때 상기 롤링피스톤(9)은 압축실(7)의 내주면과 접촉되면서 편심회전을 함에 따라 베인(11)을 기준으로 압축실(7)의 내용적이 변화되면서 흡입파이프(1a)를 통해 유입된 냉매가스가 고온/고압으로 압축된다.At this time, the rolling piston 9 is in contact with the inner circumferential surface of the compression chamber (7) is rotated through the suction pipe (1a) while changing the contents of the compression chamber (7) based on the vanes 11 as the eccentric rotation The refrigerant gas is compressed to high temperature / high pressure.
이와 같이 고온/고압으로 압축된 냉매가스는 도면상 좌측에 위치한 모터(2)를 향해 토출되고, 이 냉매는 모터(2)의 공극을 통해 케이스(1)의 일측면에 설치된 토출파이프(1b)로 배출이 이루어 지게 된다.Thus, the refrigerant gas compressed at high temperature / high pressure is discharged toward the motor 2 located on the left side of the drawing, and the refrigerant gas is discharge pipe 1b installed on one side of the case 1 through the air gap of the motor 2. Emissions will occur.
한편, 상기 케이스(1)내의 하부에 고여있는 오일(냉동기유)은 프로펠러(3a)의 회전력에 의해 급유관(3b)를 통해 흡상되어 각 습동부를 윤활 및 냉각 시켜주게 된다.On the other hand, the oil (cold air oil) accumulated in the lower part of the case 1 is sucked through the oil supply pipe 3b by the rotational force of the propeller 3a to lubricate and cool each sliding part.
이러한 종래의 횡형 로타리 압축기는 흡입파이프(1a)를 통해 냉매가 저온/저압 상태로 흡입된 직후 압축부의 압축실(7)로 유입되어 고온/고압으로 압축된다.The conventional horizontal rotary compressor is introduced into the compression chamber 7 of the compression unit immediately after the refrigerant is sucked in a low temperature / low pressure state through the suction pipe 1a and compressed at a high temperature / high pressure.
압축된 냉매는 압축부로부터 벗어나 케이스(1)내부로 직접적인 토출이 이루어지므로 압축부로부터 토출파이프(1b)사이의 공간은 고온/고압 상태의 냉매가 흐르게 된다.Since the compressed refrigerant is discharged directly from the compression unit into the case 1, the refrigerant between the compression unit and the discharge pipe 1b flows in the space between the compression unit and the discharge pipe 1b.
따라서, 케이스(1)내부는 고온/고압 상태가 되므로 압축기가 설치된 위치의 외부온도가 고온인 경우에는 기기의 내부온도가 더욱 상승하여 응축기로 보내지는 냉매가 고온인 상태가 되므로 응축기에서의 응축압력이 매우 높아지게 되어 열교환 효율이 저하되는 문제점이 있었다.Therefore, since the inside of the case 1 becomes a high temperature / high pressure state, when the outside temperature of the position where the compressor is installed is a high temperature, the internal temperature of the device is further increased so that the refrigerant sent to the condenser is in a high temperature state. This is very high, there was a problem that the heat exchange efficiency is lowered.
특히 대체냉매인 R410a(R32+R125)와 같은 고압냉매를 사용하였을 경우에는 상기와 같은 문제가 더욱 두드러지게 나타나게 된다.In particular, when using a high-pressure refrigerant, such as R410a (R32 + R125) as a replacement refrigerant will be more prominent.
본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 안출한 것으로서, 그 목적은 횡형 로타리 압축기에 있어서, 그 내부가 저온/저압 상태를 유지할 수 있도록 하기 위한 것이다.The present invention has been made to solve the above-mentioned conventional problems, the object of the horizontal rotary compressor, the inside to maintain a low temperature / low pressure state.
상기의 목적을 달성하기 위한 본 발명은 케이스와, 상기 케이스내에 압축부와, 모터와, 상기 압축부와 모터를 연결하는 회전축으로 구성된 것에 있어서; 냉매를 흡입 및 배출하기 위한 흡입파이프와 토출파이프는 상기 케이스에 설치하고, 상기 압축부는 상기 토출파이프와 연결하며, 상기 케이스 내부는 상기 흡입파이프와 연통하여, 상기 흡입파이프를 통해 유입되는 저온/저압상태의 냉매가 압축부로 유입되기 직전까지는 저온/저압상태로 유동되도록함에 따라 케이스 내부가 저온/저압을 유지할 수 있도록 한 것을 특징으로 하는 저압형 로타리 압축기를 제공함에 있다.The present invention for achieving the above object is composed of a case, a compression unit, a motor, and a rotating shaft connecting the compression unit and the motor in the case; A suction pipe and a discharge pipe for suctioning and discharging the refrigerant are installed in the case, the compression unit is connected to the discharge pipe, and the inside of the case communicates with the suction pipe, and the low / low pressure flows through the suction pipe. It is to provide a low-pressure rotary compressor characterized in that the inside of the case to maintain the low temperature / low pressure by allowing the refrigerant in the state to flow in a low temperature / low pressure state until just before flowing into the compression unit.
도 1은 종래 횡형 로타리 압축기의 종단면도1 is a longitudinal cross-sectional view of a conventional horizontal rotary compressor
도 2는 본 발명 저압형 로타리 압축기의 종단면도2 is a longitudinal sectional view of the low pressure rotary compressor of the present invention;
도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings
1 : 케이스 1a : 흡입파이프1: Case 1a: Suction Pipe
1b : 토출파이프 2 : 모터1b: discharge pipe 2: motor
3 : 회전축 12 : 공명기3: rotation axis 12: resonator
P : 압축부P: Compression part
이하, 첨부된 도 2를 참조하여 본 발명의 저압형 로타리 압축기 구조를 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying Figure 2 will be described in detail the low pressure rotary compressor structure of the present invention.
도 2는 본 발명 저압형 로타리 압축기의 종단면도를 도시한 것이다.2 is a longitudinal sectional view of the low pressure rotary compressor of the present invention.
본 발명의 로타리 압축기의 구조적인 특징은 냉매의 흡입 및 토출이 횡방향으로 이루어지도록 하며, 흡입파이프(1a)를 통과하는 저온/저압의 냉매가스가 케이스(1)를 어느정도 지나쳐온 이후에 압축부(P)로 유입되도록 하여 케이스(1)내부의 온도와 압력이 저온/저압이 되도록 하므로써 기기 외부의 조건이 고온이더라도 압력상승을 억제할 수 있게 된다.Structural features of the rotary compressor of the present invention is that the suction and discharge of the refrigerant is made in the transverse direction, after the low-temperature / low-pressure refrigerant gas passing through the suction pipe (1a) to some extent after passing through the case (1) Since the temperature and pressure inside the casing 1 become low temperature / low pressure so as to flow into (P), the pressure rise can be suppressed even when the temperature outside the apparatus is high.
이에 대한 본 발명의 저압형 로타리 압축기의 구성을 상세히 설명하면 다음과 같다.Referring to the configuration of the low-pressure rotary compressor of the present invention in detail as follows.
외형을 형성하는 케이스(1)의 일측과 타측에는 냉매가 흡입되는 흡입파이프(1a)와 압축된 냉매가 배출되는 토출파이프(1b)가 각각 설치되어 있으며, 상기 케이스의 내부에는 흡입파이프(1a)로부터 토출파이프(1b)를 향해 압축부(P)와 모터(2)가 나란하게 설치되어 있고, 상기 압축부(P)와 모터(2)는 회전축(3)에 의해 연결되어 있다.One side and the other side of the case 1 forming an outer shape are provided with a suction pipe 1a for sucking refrigerant and a discharge pipe 1b for discharging the compressed refrigerant, respectively, and a suction pipe 1a inside the case. The compression part P and the motor 2 are installed side by side toward the discharge pipe 1b from the side, and the compression part P and the motor 2 are connected by the rotating shaft 3.
또한, 상기 압축부(P)는 토출파이프(1b)와 연결되어 압축실(7)과 연통되어 있으며, 토출파이프(1b) 상에는 냉매가 배출될 때의 소음을 저감시키기 위한 공명기(12)가 설치되어 있다.In addition, the compression unit (P) is connected to the discharge pipe (1b) is in communication with the compression chamber (7), on the discharge pipe (1b) is provided with a resonator 12 for reducing the noise when the refrigerant is discharged It is.
또한, 회전축(3)과 메인베어링(5)과 서브베어링(6)의 동작부사이에는 원활한 동작을 위한 오일공급을 위해 회전축(3)의 끝단부에는 바닥에 고인 오일로 연결되는 급유관(13)이 설치되어 있다.In addition, an oil supply pipe 13 connected to the bottom of the rotary shaft 3 with oil accumulated at the bottom for supplying oil for smooth operation between the rotary shaft 3 and the main bearing 5 and the sub bearing 6. ) Is installed.
급유시에는 상기 급유관(13)의 회전축(3) 연결부위에 펌핑수단(프로펠러)을 설치하여 오일을 동작부의 접촉면으로 강제 공급되도록 하였는데, 이러한 구조는 기존 압축기와 흡사한 구조라 하겠다.At the time of lubrication, a pumping means (propeller) was installed at the connection part of the rotary shaft 3 of the lubrication pipe 13 so that oil was forced to be supplied to the contact surface of the operation part. This structure is similar to the existing compressor.
따라서, 저온/저압 상태의 냉매가 흡입파이프(1a)를 통해 유입되면 유입된 냉매는 고정자(2a)와 케이스(1)사이, 회전자(2b)와 고정자(2a)사이에 각각 형성되어 있는 공극을 통해 저온/저압인 상태로 압축부(P)를 향해 유동되어 압축부(P)의 상부에 형성된 흡입포트(4a)를 통해 압축부(P)내에 형성되어 있는 압축실(7)로 유입되어 기존과 동일한 압축작용에 의해 고온/고압으로 압축이 이루어져 토출파이프(1b)를 통해 외부로 배출된다.Therefore, when coolant in a low temperature / low pressure state flows through the suction pipe 1a, the introduced coolant is formed between the stator 2a and the case 1 and between the rotor 2b and the stator 2a, respectively. Through the suction port (4a) formed in the upper portion of the compression section (P) flows toward the compression section (P) at a low temperature / low pressure through the compression chamber (7) formed in the compression section (P) Compression is performed at high temperature / high pressure by the same compression action as before, and is discharged to the outside through the discharge pipe 1b.
그러므로 흡입파이프(1a)로부터 압축부(P)사이에서의 냉매가스는 적어도 압축부로 유입되기 전까지는 저온/저압인 상태이므로 케이스(1)의 내부는 저온/저압상태를 유지하게 된다.Therefore, since the refrigerant gas between the suction pipe 1a and the compression unit P is at a low temperature / low pressure until at least it flows into the compression unit, the inside of the case 1 maintains a low temperature / low pressure state.
따라서 압축기가 설치된 외기온도가 고온이더라도 케이스(1)내부의 압력 및 온도가 상승하는 것을 억제할 수 있게 된다.Therefore, even if the outside air temperature where the compressor is installed is high, it is possible to suppress the increase in the pressure and the temperature inside the case 1.
또한, 상술한 바와 같이 모터(2)를 통과하는 냉매가 저온인 상태이므로 모터의 구동열을 냉각시켜주는 부수적인 효과를 얻을 수 있으므로 모터(2)의 효율을 증대와 아울러 그 수명 또한 연장시켜주게 된다.In addition, as described above, since the refrigerant passing through the motor 2 is in a low temperature state, a side effect of cooling the driving heat of the motor can be obtained, thereby increasing the efficiency of the motor 2 and extending its life. do.
이상과 같은 본 발명의 저압형 로타리 압축기는 기내가 저온/저압상태이므로 기외의 온도가 고온인 조건하에서도 기내의 압력 및 온도의 상승이 억제되어 기기의 신뢰성을 향상시키는 효과가 있다.Since the low pressure rotary compressor of the present invention as described above has a low temperature / low pressure in the cabin, even in a condition where the temperature of the outside temperature is high, an increase in pressure and temperature in the cabin is suppressed, thereby improving the reliability of the device.
또한, 저온의 냉매에 의해 모터의 구동열을 냉각시켜주므로써 모터의 효율향상은 물론 수명을 연장시키는 효과도 있다.In addition, by cooling the driving heat of the motor by a low temperature refrigerant, the efficiency of the motor and the life of the motor can be extended.
또한, 토출파이프에 공명기를 부설하므로써 압축과 동시에 토출되는 냉매의 토출소음을 진정시키는 효과도 있다.In addition, by providing a resonator in the discharge pipe, there is an effect of calming the discharge noise of the refrigerant discharged at the same time as the compression.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980015699A KR100311466B1 (en) | 1998-04-30 | 1998-04-30 | low pressure type rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980015699A KR100311466B1 (en) | 1998-04-30 | 1998-04-30 | low pressure type rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990081666A KR19990081666A (en) | 1999-11-15 |
| KR100311466B1 true KR100311466B1 (en) | 2001-12-17 |
Family
ID=37531034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980015699A KR100311466B1 (en) | 1998-04-30 | 1998-04-30 | low pressure type rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100311466B1 (en) |
-
1998
- 1998-04-30 KR KR1019980015699A patent/KR100311466B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990081666A (en) | 1999-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8689581B2 (en) | Rotary-type fluid machine and refrigeration cycle apparatus | |
| WO2019076080A1 (en) | Scroll compressor having lubricating structure | |
| KR20000056800A (en) | An exhausting structure for rotary compressor | |
| CN108252908B (en) | Self-balancing wet Roots pump | |
| KR100311466B1 (en) | low pressure type rotary compressor | |
| CN211116581U (en) | Compressor for vehicle | |
| JP2012036862A (en) | Hermetically-sealed compressor, and refrigerating cycle apparatus | |
| JP2003065236A (en) | Hermetic electric compressor | |
| CN218598362U (en) | Semi-closed single screw compressor for high temperature application | |
| CN218971420U (en) | Piston and low back pressure swing type compressor | |
| CN114718876B (en) | Oil supply system and compressor | |
| CN210889313U (en) | Compressor for vehicle | |
| KR930008488B1 (en) | Scroll compressor | |
| KR100299589B1 (en) | Fluid appatus | |
| KR100869926B1 (en) | Compressor | |
| KR100972172B1 (en) | Motor driven compressor | |
| KR0127035B1 (en) | Closed rotary compressor | |
| JPS6123392B2 (en) | ||
| KR0161953B1 (en) | A rotary compressor | |
| KR100941708B1 (en) | Electrically driven compressor | |
| KR100970714B1 (en) | Electrically driven compressor | |
| KR100941707B1 (en) | Electrically driven compressor | |
| KR920003634Y1 (en) | Intake port cooling device for hermetic compressor | |
| JP4622793B2 (en) | Hermetic compressor | |
| KR101206139B1 (en) | Compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| LAPS | Lapse due to unpaid annual fee |