KR19980066328A - Compressor with Compressed Gas Exhaust System - Google Patents

Compressor with Compressed Gas Exhaust System Download PDF

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Publication number
KR19980066328A
KR19980066328A KR1019970001759A KR19970001759A KR19980066328A KR 19980066328 A KR19980066328 A KR 19980066328A KR 1019970001759 A KR1019970001759 A KR 1019970001759A KR 19970001759 A KR19970001759 A KR 19970001759A KR 19980066328 A KR19980066328 A KR 19980066328A
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KR
South Korea
Prior art keywords
discharge
gas
cover
pipe
pressure
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KR1019970001759A
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Korean (ko)
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KR100208187B1 (en
Inventor
오홍희
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구자홍
엘지전자 주식회사
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Priority to KR1019970001759A priority Critical patent/KR100208187B1/en
Publication of KR19980066328A publication Critical patent/KR19980066328A/en
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Publication of KR100208187B1 publication Critical patent/KR100208187B1/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 도 3, 4와 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.3 and 4, the gas discharge groove is installed on the cylinder wall surface in which the piston reciprocates, and the introduction pipe is installed in parallel at the point connected to the loop pipe in the discharge pipe on the outside, and the switch is connected to the end of the introduction pipe. 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 배출하여 줌으로서 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 operation principle of the present invention is that when the pressure of the initial compression gas pressure is low, the switch is open so that the discharge gas of the compression stroke of the piston is discharged out of the compression chamber through the gas discharge groove, thereby lowering the required power of the initial compression. 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

도 1은 종래 밀폐형 압축기의 종단면도1 is a longitudinal sectional view of a conventional hermetic compressor

도 2는 종래의 압축기구부2 is a conventional compression mechanism portion

도 3은 본 발명의 압축기의 구성도3 is a block diagram of a compressor of the present invention

도 4는 도 3 A부의 상세도4 is a detailed view of the portion A of FIG.

도 5는 냉장고 on/off 운전5 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 : 압축실 가스79: discharge gas 30: compression chamber gas

본 발명은 실린더 벽면에 압축가스 배기장치를 설치하여 압축초기 가스압력이 낮을 때 배기장치가 열려서 압축행정중 토출가스를 배출하여 압축초기의 소요동력을 낮추어 줌으로서 입력을 저하시켜 소비전력저감에 기여하고자 한다.The present invention installs a compressed gas exhaust device on the cylinder wall to open the exhaust device when the compressed initial gas pressure is low to discharge the discharge gas during the compression stroke, thereby lowering the input power by reducing the initial power consumption, contributing to the reduction of power consumption. I would like to.

종래의 기술구성에 있어서, 도 1은 종래 밀폐형압축기의 종단면도이다.1 is a longitudinal cross-sectional view of a conventional hermetic compressor.

도 1에 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 composed of the lower sealing container 1A and the upper sealing container 18, a support spring S for supporting the compression element and the transmission element is provided, and the support spring S is provided. ), A compression element and an electric element of electricity 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 유도전동기(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 an induction motor 2 together with the stator 2A.

도 2는 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 설치되어 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 도 2와 같이 헤드카바1(12A)와 헤드카바2(12B)로 구성되고, 상기 헤드카바1(12A)에는 흡입 냉매유로구1,2(24A,24B) 및 토출냉매유로구1,2(25A,25B)가 형성되어 있으며, 헤드카바1(12A)의 일단에는 흡입 머플러(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 at the upper portion of the above-described rotation shaft 4, and is integrally provided, and the slider 13 on the outer circumference of the eccentric portion 5 Is installed in the state of being inserted into the piston 7, the cylinder 6 is attached to one end of the piston 7, and the cylinder 6 is fastened to the frame 3 mentioned above with the bolt. 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 is composed of a head cover 1 (12A) and a head cover 2 (12B) as shown in Figure 2, the head cover 1 (12A) is a suction refrigerant flow paths 1, 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 is provided at the other end. One end of the two mufflers 20 and 21 is provided with a suction pipe 19 and a discharge pipe 22, respectively, and is integrally welded together with the head cover 12 in a brazing furnace.

한편, 도 2에 있어서, 헤드(9)에는 각각 흡입구(15)와 토출구(17)가 형성되어 있고, 흡입구(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.In FIG. 2, the inlet 15 and the outlet 17 are respectively formed in the head 9, and the inlet valve 8, which serves to open and close the inlet 15, includes the head 9 and the cylinder ( 6, the compression chamber 16 is formed by the intake valve 8, the cylinder 6, and the piston 7. As shown in FIG. 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 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 도 1 및 도 2를 참조하여 설명한다.Now, the operation of the conventional hermetic compressor having the above structure will 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.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.

이 회전축(4)의 회전에 따라 회전측(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.In response to the rotation of the rotary shaft 4, the piston 7 inserting the slider 13 in response to the movement of the slider 13 provided on the outer circumference of the eccentric portion 5 provided on the rotation side 4 is a cylinder. The compression chamber 16 formed in (6) is reciprocated.

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 흡입관(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 [압축행정완료], 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 토출 유로구2(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 low temperature low pressure refrigerant gas is sucked into the sealed container 1 through the suction pipe (not shown) installed in the tank, and the low temperature low pressure refrigerant gas sucked into the sealed container 1 is installed at the head cover 1 (12A). After being sucked into the suction muffler 20 through the suction pipe 19 of the muffler 20, and then sucked into the suction plateium 14 through the suction flow port 1 (24A) formed in the head cover 1 (12A), It is guided 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), opens the suction valve 8, and sucks it into the compression chamber 16. do. 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 [compression stroke completed], the discharge flow path 1 (25A) provided in the head cover 1 (12A) formed on the head 9 is opened. The discharge gas is discharged to the discharge platen 18 through the discharge platen 18. [This is called discharge stroke] The high-temperature, high-pressure refrigerant gas discharged to the discharge platen 18 is discharged to the discharge channel port 2 (25B) provided in the head cover 1 (12A). After being discharged into the discharge muffler 21 provided at one end of the head cover 1 (12A), and after passing through the loop pipe 23 through the discharge pipe 22 provided in the discharge muffler 21, the airtight container 1 It is sent to the condenser of the refrigerant cycle through the discharge pipe (not shown) provided in the).

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 도 5에서와 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 도 3, 4와 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 설치하며 이러한 도입관을 밀폐하기 위한 덮개(75)를 실린더(56)위에 설치하고 상기 덮개(75)에는 덮개 배출홈(78)을 형성하여 배기가스가 배출되도록 하였다.3 and 4, the gas discharge grooves 77 are installed on the wall of the cylinder 56 in which the piston 57 reciprocates and the discharge pipes 72 are connected to the roof pipes 73 at the outside. 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. A cover 75 for sealing the introduction pipe is installed on the cylinder 56, and the cover 75 is disposed. ) 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 배출하여 줌으로서 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) 벽면의 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 도 5에서와 같이 on/off운전을 계속하는 냉장고상태에 있어서 압축기의 기동시의 초기소요동력을 낮추어 줌으로서 압축기에 가해지는 압력을 저하시켜 소비전력을 저하시킬 수 있는 효과가 있다.The effect of the present invention constructed and operated as described above is to reduce the initial power required at the start of the compressor in the refrigerator to continue on / off operation as shown in Figure 5 to lower the pressure applied to the compressor to reduce power consumption There is an effect that can be reduced.

Claims (3)

피스톤이 왕복운동하는 실린더 외측에 토출파이프에서 루프파이프로 연결되는 지점에 도입관을 병렬로 설치하고, 상기 실린더 벽면에 압축가스배기장치와 가스토출홈을 설치하여 압축초기의 소요동력을 낮추어줌으로서 압력을 저하시켜 소비젼력저감을 가능토록한 압축기.By installing the introduction pipes in parallel at the point where the piston is connected to the loop pipe from the discharge pipe outside the reciprocating cylinder and installing the compressed gas exhaust device and the gas discharge groove 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. 제 1 항에 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. 제 1 항에 있어서, 상기 도입관을 밀폐하기 위한 덮개에 덮개 배출홈을 형성하여 토출가스를 배출하도록 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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