KR100208187B1 - Compressor attaching gas exhausting apparatus - Google Patents

Compressor attaching gas exhausting apparatus Download PDF

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Publication number
KR100208187B1
KR100208187B1 KR1019970001759A KR19970001759A KR100208187B1 KR 100208187 B1 KR100208187 B1 KR 100208187B1 KR 1019970001759 A KR1019970001759 A KR 1019970001759A KR 19970001759 A KR19970001759 A KR 19970001759A KR 100208187 B1 KR100208187 B1 KR 100208187B1
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South Korea
Prior art keywords
discharge
gas
cover
pressure
compression
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KR1019970001759A
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Korean (ko)
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KR19980066328A (en
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오홍희
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구자홍
엘지전자주식회사
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Priority to KR1019970001759A priority Critical patent/KR100208187B1/en
Publication of KR19980066328A publication Critical patent/KR19980066328A/en
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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
    • F04B39/123—Fluid connections
    • 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
    • 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
    • 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
    • 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

본 발명의 구성은 제3, 4도와 같이 피스톤이 왕복운동하는 실린더 벽면에 가스토출홈을 설치하고 외측에는 토출파이프에서 루프파이프로 연결되는 지점에 도입관을 병렬로 설치하고 도입관 끝부분에는 개폐기를 설치하며 이러한 도입관을 밀폐하기 위한 덮개를 실린더위에 설치하고, 상기 덮개에는 덮개 배출홈을 형성하여 배기가스가 배출되도록 하였다.In the configuration of the present invention, as shown in FIGS. The cover is installed on the cylinder to seal the inlet pipe, and the cover is formed in the cover discharge groove so that the exhaust gas is discharged.

이러한 본 발명의 동작원리는 압축행정초기 압축가스 압력이 낮을때는 개폐기가 열려있어서 피스톤의 압축행정의 토출가스를 가스배출홈을 통하여 압축실 밖으로 배출하여줌으로서 압축초기의 소요동력을 낮추어 초기동시의 압력을 낮추어준다. 또한 기동후에는 토출플래늄의 토출가스 압력이 높아져 정상운정에 달하면 토출가스가 개폐기를 밀어주어 실린더 벽면의 가스배출홈을 막아줌으로서 압축행정시의 가스누설을 방지하여 정상운전을 가능토록 한 것이다.The operating principle of the present invention is to open the switchgear when the pressure of the initial compression gas pressure is low to discharge the discharge gas of the compression stroke of the piston out of the compression chamber through the gas discharge groove to lower the required power of the initial compression to the initial simultaneous Reduce the pressure. In addition, when the discharge gas pressure of the discharge plateium increases after the start-up, the discharge gas pushes the switchgear and blocks the gas discharge groove on the cylinder wall to prevent gas leakage during the compression stroke, thereby enabling normal operation. .

Description

압축가스배기장치가 설치된 압축기Compressor with Compressed Gas Exhaust System

제1도는 종래 밀폐형 압축기의 종단면도.1 is a longitudinal sectional view of a conventional hermetic compressor.

제2도는 종래의 압축기구부.2 is a conventional compression mechanism unit.

제3도는 본 발명의 압축기의 구성도.3 is a block diagram of a compressor of the present invention.

제4도는 제3(a)도의 상세도.4 is a detail of FIG. 3 (a).

제5도는 냉장고 on/off 운전.5 is a refrigerator on / off operation.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

56 : 실린더 74 : 도입관56 cylinder 74 introduction tube

75 : 도입관 덮개 76 : 개폐기75: introduction tube cover 76: switchgear

77 : 가스배출홈 78 : 덮께 배출홈77: gas discharge groove 78: cover discharge groove

79 : 토출가스 30 : 압축실가스79: discharge gas 30: compressed chamber gas

본 발명은 실린더 벽면에 압축가스 배기장치를 설치하여 압축초기 가스압력이 낮을 때 배기장치가 열려서 압축행정중 토출가스를 배출하여 압축초기의 소요동력을 낮추어 줌으로서 입력을 저하시켜 소비전력감에 기여하고자 한다.The present invention is to install a compressed gas exhaust device on the cylinder wall to open the exhaust device when the compression initial gas pressure is low to discharge the discharge gas during the compression stroke to lower the power required by the initial compression to reduce the input to contribute to the power consumption do.

종래의 기술구성에 있어서, 제1도는 종래 밀폐형압축기의 종단면도이다.In the prior art configuration, FIG. 1 is a longitudinal sectional view of a conventional hermetic compressor.

제1도에 있어서, 하부밀폐용기(1A)와 상부밀폐용기(18)로 이루어진 밀폐용기(1)내에, 압축요소와 전동요소를 지지하는 지지스프링(S)이 설치되어 있고, 상기 지지스프링(S)에는 전기의 압축요소와 전동요소가 설치되어 밀폐용기(1)와 분리되어 있다.In FIG. 1, in the closed container 1 which consists of the lower sealing container 1A and the upper sealing container 18, the support spring S which supports a compression element and a transmission element is provided, and the said support spring ( In S), an electric compression element and an electric element are installed and separated from the sealed container 1.

전기의 전동요소는, 프레임(3)에 고정자(2A)가 볼트로 체결되어 있고, 프레임(3)의 중앙에는 회전축(4)이 삽입되어 설치되고, 회전축(4)의 하부에 회전자(28)가 압입설치되어 고정자(2A)와 함께 유기전동기(2)를 형성하는 구조로 구성된다.As for the electric transmission element, the stator 2A is fastened to the frame 3 with the bolt, the rotation shaft 4 is inserted in the center of the frame 3, and the rotor 28 is installed in the lower part of the rotation shaft 4. ) Is press-installed to form the organic motor 2 together with the stator 2A.

제2도는 종래의 압축요소인 압축기구부를 나타낸다.2 shows a compression mechanism part which is a conventional compression element.

한편, 전기의 압축요소는, 전술한 회전축(4)의 상부에 회전축(4) 중심과 편심되어 형성된 편심부(5)가 일체로 설치되어 있으며, 편심부(5)의 외주에 슬라이더(13)가 피스톤(7)에 삽입된 상태로 있으며, 피스톤(7)의 일단에는 실린더(6)가 설치되고, 실린더(6)는 전술한 프레임(3)에 볼트로 체결되어 있다. 그리고 전기 실린더(6)의 전면에는 흡입밸브(8), 헤드(9), 토출밸브(10), 패킹카바(11) 및 헤드카바(12)가 차례로 위치하여 볼트에 의해 실린더(6)에 체결되어 있는 구조로 되어 있으며, 헤드카바(12)는 제2도와 같이 헤드카바1(12A)와 헤드카바2(12B)로 구성되고, 상기 헤드카바1(12A)에는 흡입냉매유로구1,2(24A,24B) 및 토출냉매유로구1,2(25A,25B)가 형성되어 있으며, 헤드카바1(12A)의 일단에는 흡입머플러(20)가, 또 다른 일단에는 토출머플러(21)가 각각 설치되고,상기 두 개의 머플러(20,21)일단에는 각각 흡입파이프(19) 및 토출파이프(22)가 설치되어 헤드카바(12)와 함께 브래이징로내에서 일체형으로 용접되는 구조로 구성된다.On the other hand, the electric compression element has an eccentric portion 5 formed integrally with the center of the rotation shaft 4 on the upper portion of the rotation shaft 4 described above, and is integrally provided, and the slider 13 is formed on the outer circumference of the eccentric portion 5. Is inserted into the piston 7, the cylinder 6 is provided at one end of the piston 7, and the cylinder 6 is bolted to the frame 3 described above. On the front of the electric cylinder 6, the intake valve 8, the head 9, the discharge valve 10, the packing cover 11 and the head cover 12 are sequentially positioned and fastened to the cylinder 6 by bolts. The head cover 12 includes a head cover 1 (12A) and a head cover 2 (12B) as shown in FIG. 2, and the head cover 1 (12A) has suction refrigerant flow paths 1 and 2 ( 24A and 24B and discharge refrigerant flow paths 1 and 2 (25A and 25B) are formed, and the suction muffler 20 is provided at one end of the head cover 1 (12A) and the discharge muffler 21 at the other end. At one end of the two mufflers 20 and 21, suction pipes 19 and discharge pipes 22 are installed, respectively, and are integrally welded together in the brazing furnace together with the head cover 12.

한편, 제2도에 있어서, 헤드(9)에는 각각 흡입구(15)와 투출구(17)가 형성되어 있고, 흡이구(15)를 개폐하는 역할을 하는 흡입밸브(8)가 헤드(9)와 실린더(6) 사이에 설치되고, 흡입밸브(8)와 실린더(6) 및 피스톤(7)에 의해 압축실(16)이 형성된다. 그리고 헤드(9)에 형성되어 있는 토출구(17)를 개폐하는 역할을 하는 토출밸브(10)가 헤드(9)와 헤드카바(12) 사이에 설치되고, 토출밸브(10)와 헤드카바(12)사이에는 패킹카바(11)가 설치되어 누설을 방지하는 역할을 하고 있다. 그리고 헤드카바(12)는 헤드카바1(12A)과 헤드카바2(12B)로 이루어지는 공간을 양분하는 구조로 되어 있으며, 이와같이 양분된 두 개의 공간중에서 헤드(9)에 형성되어 있는 흡입구(15)측에 위치한 공간을 흡입플래늄(14)이라 칭하고 헤드(9)에 형성되어 있는 토출구(17)측에 위치한 공간을 토출플래늄(18)이라고 칭한다.On the other hand, in Fig. 2, the head 9 is provided with a suction port 15 and a discharge port 17, respectively, and the suction valve 8, which serves to open and close the suction port 15, has the head 9. And a compression chamber 16 are formed between the cylinder 6 and the cylinder 6 by the intake valve 8, the cylinder 6, and the piston 7. A discharge valve 10 serving to open and close the discharge port 17 formed in the head 9 is provided between the head 9 and the head cover 12, and the discharge valve 10 and the head cover 12 are provided. The packing cover 11 is installed between the and serves to prevent leakage. The head cover 12 has a structure for dividing the space consisting of the head cover 1 (12A) and the head cover 2 (12B), the suction port 15 formed in the head (9) in the two divided spaces as described above The space located on the side is called the suction platen 14 and the space located on the discharge port 17 side formed in the head 9 is called the discharge platen 18.

지금부터 이상과 같은 구조로 이루어진 종래의 밀폐형압축기의 동작과정을 제1도 및 제2도를 참조하여 설명한다.The operation of the conventional hermetic compressor having the above structure will now be described with reference to FIGS. 1 and 2.

상기 고정자(2A)와 회전자(2B)로 구성된 유도전동기(2)에 전원이 인가되면, 회전자(2B)와 고정자(2A)사이에 유도전류가 발생하여 회전자(2B)가 회전하게 되고, 회전자(2B)의 회전에 따라 회전자(2B)에 압입된 회전축(4)이 회전하게 된다. 이 회전축(4)의 회전에 따라 회전축(4)에 설치된 편심부(5)의 외주에 설치되어 있는 슬라이더(13)의 움직임에 연동되어 슬라이더(13)를 삽입하고 있는 피스톤(7)이 실린더(6)내에 형성된 압축실(16)내를 왕복운동하게 된다.When power is applied to the induction motor 2 composed of the stator 2A and the rotor 2B, an induction current is generated between the rotor 2B and the stator 2A to rotate the rotor 2B. In accordance with the rotation of the rotor 2B, the rotary shaft 4 pushed into the rotor 2B rotates. In response to the rotation of the rotary shaft 4, the piston 7 inserting the slider 13 is linked to the movement of the slider 13 provided on the outer circumference of the eccentric portion 5 provided on the rotary shaft 4. 6) reciprocating in the compression chamber 16 formed in.

상술한 바와 같이 피스톤(7)이 실린더(6)내를 왕복운동하는데 있어서, 전기 피스톤(7)이 실린더(6)내를 후진운동하는 경우[이때를 흡입행정이라 한다.], 밀폐용기(1)에 설치된 흡입된(도시생략)을 통하여 저온저압의 냉매가스가 밀폐용기(1)내로 흡입되고, 밀폐용기(1)에 흡입된 저온저압의 냉매가스는 헤드카바1(12A)에 설치되어 있는 흡입머플러(20)의 흡입파이프(19)를 통하여 흡입머플러(20)내로 흡입된 후, 헤드카바1(12A)에 형성된 흡입유로구1(24A)를 통하여 흡입플래늄(14)으로 흡입된 후, 전기 헤드카바1(12A)에 형성되어 있는 흡입유로구2(24B)를 통하여 전기 헤드(9)에 형성되어 있는 흡입구(15)로 안내되어 흡입밸브(8)를 열고 압축실(16)내로 흡입된다. 이와같이 흡입된 저온저압의 냉매가스는, 피스톤(7)이 실린더(6)내에서 후진운동을 끝내고[흡입행정완료] 전진운동을 시작하면[이때를 압축행정이라 한다.], 흡입밸브(8)를 닫고, 압축실(16)내에서 고온고압의 냉매가스로 압축된다. 압축실(16)내에서 고온고압으로 압축된 냉매가스가 일정압력에 도달하면 [업축행정완료], 헤드(9)에 형성되어 있는 헤드카바1(12A)에 설치된 토출유로구1(25A)을 통하여 토출플래늄(18)으로 토출된다. [이때를 토출행정이라 한다] 토출플래늄(18)으로 토출된 고온고압의 냉매가스는 헤드카바1(12A)에 설치된 토출유로구2(25B)를 거쳐서 헤드카바1(12A)의 일단에 설치되어 있는 토출머플러(21)내로 토출된후, 토출머플러(21)에 설치된 토출파이프(22)를 통하여 루프파이프(23)를 거친후, 밀폐용기(1)에 설치되어 있는 토출관(도시생략)을 통하여 냉매사이클의 응축기로 보내어진다.When the piston 7 reciprocates in the cylinder 6 as described above, when the electric piston 7 moves backward in the cylinder 6 (this is called a suction stroke), the sealed container 1 The refrigerant gas of low temperature and low pressure is sucked into the sealed container 1 through suction (not shown) installed in the tank, and the refrigerant gas of low temperature and low pressure sucked into the sealed container 1 is installed in the head cover 1 (12A). After being sucked into the suction muffler 20 through the suction pipe 19 of the suction muffler 20, the suction muffler 20 is sucked into the suction platen 14 through the suction flow port 1 (24A) formed in the head cover 1 (12A). Is led to the suction port 15 formed in the electric head 9 through the suction flow path 2 (24B) formed in the electric head cover 1 (12A) to open the suction valve 8 and into the compression chamber 16. Is inhaled. The low-temperature low-pressure refrigerant gas sucked in this way, when the piston (7) finishes the backward movement (completed suction stroke) in the cylinder (6) and starts the forward movement (this is called a compression stroke), the suction valve (8) Is closed and compressed into a refrigerant gas of high temperature and high pressure in the compression chamber 16. When the refrigerant gas compressed at a high temperature and high pressure in the compression chamber 16 reaches a predetermined pressure [upstroke stroke completion], the discharge flow path 1 (25A) provided in the head cover 1 (12A) formed on the head 9 is opened. It is discharged to the discharge platen 18 through. [This time is called discharge stroke] The high temperature and high pressure refrigerant gas discharged to the discharge plate 18 is installed at one end of the head cover 1 (12A) via the discharge flow path 2 (25B) provided in the head cover 1 (12A). After being discharged into the discharge muffler 21 which has been discharged, it passes through the loop pipe 23 through the discharge pipe 22 provided in the discharge muffler 21, and then discharge tube (not shown) provided in the sealed container 1. Is sent to the condenser of the refrigerant cycle.

종래기술에서는 회전자(2B)가 회전을 시작하면 상기 회전자에 압입되어 있는 회전축(4)과 편심부(5)가 회전운동을 하게된다. 이 회전운동은 다시 슬라이더(13)를 통하여 피스톤(7)의 직선운동으로 바뀌어 지는데 이 과정에서 각 접촉면에서의 마찰에 의한 기계적 손실과 실린더내부의 가스를 압축하여 정상압력까지 상승하는데는 상당한 소요동력이 필요하여 압축기 입력상승의 원인이되고 있다. 이러한 현상은 제5도에서와 같이 on/off 운전을 자주하는 냉장고 상태에서는 소비전력상승의 원인이 되는 문제점이 있다.In the prior art, when the rotor 2B starts to rotate, the rotary shaft 4 and the eccentric portion 5 which are pressed into the rotor are rotated. This rotational movement is converted into the linear movement of the piston 7 again through the slider 13, in which the mechanical loss due to friction on each contact surface and the pressure required to compress the gas in the cylinder to the normal pressure are increased. This is causing the compressor input to rise. This phenomenon has a problem that the power consumption rises in the refrigerator state frequently on / off operation as shown in FIG.

따라서 본 발명은 상기 종래의 문제점을 감안하여 실린더벽면에 압축가스 배기장치를 장치하여 종래의 문제점을 해결한 것으로써 이를 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Therefore, the present invention solves the conventional problems by installing a compressed gas exhaust device on the cylinder wall surface in view of the conventional problems as described in detail based on the accompanying drawings as follows.

본 발명의 구성은 제3,4도와 같이 피스톤(57)이 왕복운동하는 실린더(56) 벽면에 가스토출홈(77)을 설치하고 외측에는 토출파이프(72)에서 루프파이프(73)로 연결되는 지점에 도입관(74)을 병렬로 설치하고 도입관(74) 끝부분에는 개폐기(76)를 설치하여 이러한 도입관을 밀폐하기 위한 덮개(75)를 실린더(56)위에 설치하고 상기 덮개(75)에는 덮개 배출홈(78)을 형성하여 배기가스가 배출되도록 하였다.According to the configuration of the present invention, as shown in FIGS. 3 and 4, the gas discharge grooves 77 are installed on the wall of the cylinder 56 to which the piston 57 reciprocates, and the discharge pipes 72 are connected to the roof pipes 73 at the outside thereof. The introduction pipe 74 is installed in parallel at the point, and the opening and closing switch 76 is installed at the end of the introduction pipe 74 to install a cover 75 for sealing the introduction pipe on the cylinder 56 and the cover 75. ) Is formed in the cover discharge groove 78 so that the exhaust gas is discharged.

이러한 본 발명의 동작원리는 압축행정초기 압축가스 압력이 낮을때는 개폐기(76)가 열려있어서 피스톤(57)의 압축행정의 토출가스(80)를 가스배출홈(77)을 통하여 압축실 밖으로 배출하여줌으로서 압축초기의 소요동력을 낮추어 초기동시의 압력을 낮추어준다. 또한 기동후에는 토출플래늄(68)의 토출가스(79) 압력이 높아져 정상운정에 달하면 토출가스(79)가 개폐기(76)를 밀어주어서 실린더(56) 벽면에 가스배출홈(77)을 막아줌으로서 압축행정시의 가스누설을 방지하여 정상운전을 가능토록 한다.The operation principle of the present invention is that when the initial pressure of the compression stroke is low, the switch 76 is opened to discharge the discharge gas 80 of the compression stroke of the piston 57 through the gas discharge groove 77 out of the compression chamber. By zooming in, it reduces the initial dynamic pressure by lowering the initial power of compression. In addition, after the start-up, the pressure of the discharge gas 79 of the discharge platen 68 is increased to reach a normal level, and the discharge gas 79 pushes the switch 76 to block the gas discharge groove 77 on the wall of the cylinder 56. Zooming prevents gas leakage during compression stroke and enables normal operation.

그 이외의 설명은 종래의 기술구성과 동작설명과 동일하여 생략한다.The other explanations are the same as those of the conventional technical configuration and operation description and are omitted.

이와 같이 구성되고 작동하는 본 발명의 효과는 제5도에서와 같이 on/off운전을 계속하는 냉장고상태에 있어서 압축기의 기동시의 초기소요동력을 낮추어줌으로서 압축기에 가해지는 압력을 저하시켜 소비전력을 저하시킬 수 있는 효과가 있다.The effect of the present invention configured and operated in this way is to lower the pressure required to the compressor by lowering the initial torque required at the start of the compressor in the refrigerator state continuing the on / off operation as shown in FIG. There is an effect that can lower the.

Claims (3)

피스톤이 왕복운동하는 실린더 외측에 토출파이프에서 루프파이프로 연결되는 지점에 도입관을 병열고 설치하고, 상기 실린더 벽면에 압축가스배기장치와 가스토출홈을 설치하여 압축초기의 소요동력을 낮추어줌으로서 압력을 저하시켜 소비전력저감을 가능토록한 압축기.The introduction pipes are installed in parallel with the discharge pipe from the discharge pipe to the loop pipe outside the reciprocating cylinder, and the compressed gas exhaust device and the gas discharge groove are installed on the wall of the cylinder to lower the required power of the initial compression. Compressor to reduce the power consumption to reduce the power consumption. 제1항에 있어서, 토출가스압력을 이용하여 도입관 끝부분에 개폐기를 설치한 압축기.The compressor according to claim 1, wherein a switch is installed at the end of the inlet pipe by using the discharge gas pressure. 제1항에 있어서, 상기 도입관을 밀폐하기 위한 덮개에 덮개 배출홈을 형성하여 토출가스를 배출 하도록 한 압축기.The compressor according to claim 1, wherein a cover discharge groove is formed in a cover for sealing the introduction pipe to discharge the discharge gas.
KR1019970001759A 1997-01-22 1997-01-22 Compressor attaching gas exhausting apparatus KR100208187B1 (en)

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