KR200148583Y1 - Device for preventing crank shaft abrasion of hermetic rotary compressor - Google Patents

Device for preventing crank shaft abrasion of hermetic rotary compressor Download PDF

Info

Publication number
KR200148583Y1
KR200148583Y1 KR2019970012635U KR19970012635U KR200148583Y1 KR 200148583 Y1 KR200148583 Y1 KR 200148583Y1 KR 2019970012635 U KR2019970012635 U KR 2019970012635U KR 19970012635 U KR19970012635 U KR 19970012635U KR 200148583 Y1 KR200148583 Y1 KR 200148583Y1
Authority
KR
South Korea
Prior art keywords
crankshaft
wear
eccentric portion
rotary compressor
lower bearing
Prior art date
Application number
KR2019970012635U
Other languages
Korean (ko)
Other versions
KR19980068011U (en
Inventor
안지용
Original Assignee
구자홍
엘지전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 구자홍, 엘지전자주식회사 filed Critical 구자홍
Priority to KR2019970012635U priority Critical patent/KR200148583Y1/en
Publication of KR19980068011U publication Critical patent/KR19980068011U/en
Application granted granted Critical
Publication of KR200148583Y1 publication Critical patent/KR200148583Y1/en

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
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • 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
    • F04C29/02—Lubrication; Lubricant separation
    • 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
    • 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
    • F04C2240/60—Shafts

Abstract

본 고안은 밀폐형 회전식 압축기의 크랭크축 마모방지장치에 관한 것으로, 종래에는 크랭크축의 편심부와 하부베어링이 접한 상태에서 크랭크축이 회전하게 되므로 오일의 적절한 공급이 없을 때 이상마모가 발생하여 압축시 내부 누설을 발생시킬 수 있는 문제점이 있었던바, 본 고안의 밀폐형 회전식 압축기의 크랭크축 마모방지장치는 크랭크축의 하부에 형성되어 냉매가스를 압축시키도록 실린더에 내부에서 회전하는 편심부의 하부베어링과 접촉하는 접촉면에 내마모성의 마모방지부재를 부착함으로써, 편심부와 하부베어링의 마찰손실을 감소시켜 마모를 방지하여 고압용 대체냉매 적용시에도 마모로 인한 내부누설을 방지할 수 있게 한 것이다.The present invention relates to a crankshaft wear prevention device of a hermetic rotary compressor, and conventionally, since the crankshaft rotates while the eccentric portion of the crankshaft is in contact with the lower bearing, abnormal abrasion occurs when there is no proper supply of oil. The crankshaft wear preventing device of the hermetic rotary compressor of the present invention has a problem that can cause leakage, the contact surface which is formed in the lower portion of the crankshaft to contact the lower bearing of the eccentric portion rotating inside the cylinder to compress the refrigerant gas By attaching the wear-resistant member to the wear resistance, the friction loss of the eccentric portion and the lower bearing is reduced to prevent wear, thereby preventing internal leakage due to wear even when applying a high-pressure replacement refrigerant.

Description

밀폐형 회전식 압축기의 크랭크축 마모방지장치Crankshaft wear protection device for hermetic rotary compressor

본 고안은 밀폐형 회전식 압축기의 크랭크축 마모방지장치에 관한 것으로, 특히 압축실을 구성하는 크랭크축의 편심부와 하부베어링이 직접 접촉할 때 발생하는 마모를 방지할 수 있는 밀폐형 회전식 압축기의 크랭크축 마모방지장치에 관한 것이다.The present invention relates to a crankshaft wear protection device of a hermetic rotary compressor, in particular to prevent the crankshaft wear of the hermetic rotary compressor that can prevent wear caused when the eccentric portion of the crankshaft constituting the compression chamber and the lower bearing directly contact. Relates to a device.

일반적으로 종래의 밀폐형 회전식 압축기는, 도 1에 도시한 바와 같이, 압축기 외부를 둘러싸는 밀폐용기(1)가 있고, 이 밀폐용기(1)의 내측상부에는 고정자(2)와 회전자(3)로 구성되는 전동기구부가 설치되어 있다.In general, a conventional hermetic rotary compressor, as shown in FIG. 1, has a hermetic container 1 surrounding the outside of the compressor, and a stator 2 and a rotor 3 on the inner upper part of the hermetic container 1. The electric mechanism part which consists of these is provided.

그리고 상기 회전자(3)의 내경에 압입,고정되고 하부에는 편심부(4a)가 형성된 크랭크축(4)과, 상기 크랭크축(4)의 편심부(4a)를 내부에 감싸고 있는 실린더(8)와, 상기 실린더(8)의 상부와 하부에 체결볼트(7)로 결합되어 있는 상부베어링(5) 및 하부베어링(6)과, 상기 편심부(4a)가 삽입되어 크랭크축(4)의 회전에 의해 실린더(8)의 내경을 접하여 회전하면서 냉매가스를 압축하는 롤러(9)와, 상기 상부베어링(5)에 결합되어 토출소음을 저감시키는 소음기(10) 등으로 구성되는 압축기구부가 설치되어 있다.The cylinder 8 is press-fitted and fixed to the inner diameter of the rotor 3 and has a eccentric portion 4a formed therein, and a cylinder 8 surrounding the eccentric portion 4a of the crank shaft 4 therein. ), An upper bearing 5 and a lower bearing 6 coupled to the upper and lower portions of the cylinder 8 by fastening bolts 7, and the eccentric portion 4a are inserted into the crank shaft 4. Compressor mechanism is composed of a roller (9) for compressing the refrigerant gas while rotating in contact with the inner diameter of the cylinder (8) by rotation, and a silencer (10) coupled to the upper bearing (5) to reduce the discharge noise It is.

그리고 상기 상부베어링(5)의 일측에는 실린더(8)에서 압축된 냉매가스가 토출되는 토출포트(11)가 형성되어 있고, 이 토출포트(11)에는 토출밸브(미도시)가 설치되어 있다.A discharge port 11 through which the refrigerant gas compressed from the cylinder 8 is discharged is formed at one side of the upper bearing 5, and a discharge valve (not shown) is provided at the discharge port 11.

상기 밀폐용기(1)의 상단부에는 고압의 냉매가스가 압축기 외부로 토출되는 토출관(13)이 설치되어 있고, 상기 밀폐용기(1)의 하측부에 냉동사이클과정 중 증발기에서 배출된 냉매를 압축기로 유입하기전에 냉매에 혼합된 오일과 냉매를 집적하여 분리하는 어큐뮬레이터(14)가 설치되어 있다.The upper end of the sealed container (1) is provided with a discharge pipe 13 for discharging the high-pressure refrigerant gas to the outside of the compressor, and the refrigerant discharged from the evaporator during the refrigeration cycle process in the lower side of the sealed container (1) Accumulator 14 is installed to accumulate and separate the oil and refrigerant mixed in the refrigerant before entering the furnace.

미설명부호 15는 증발기로부터 유입된 냉매가스가 압축되는 압축실이다.Reference numeral 15 is a compression chamber in which the refrigerant gas introduced from the evaporator is compressed.

상기한 바와 같은 구성의 밀폐형 회전식 압축기는 상기 고정자(2)에 전원이 인가되면 유도기전력이 발생하여 회전자(3)가 회전하게 되고, 이와 같은 회전자(3)의 회전은 회전자(3)의 내경에 압입,고정되어 있는 크랭크축(4)를 회전시키게 된다.In the sealed rotary compressor having the above-described configuration, when power is applied to the stator 2, an induction electromotive force is generated to rotate the rotor 3, and the rotation of the rotor 3 is performed by the rotor 3. It rotates the crankshaft 4 which is press-fit and fixed to the inner diameter of.

크랭크축(4)이 회전하면 크랭크축(4)의 하부에 형성된 편심부(4a)가 회전하고 이 편심부(4a)의 회전은 롤러(9)를 편심회전운동시키므로, 냉동사이클의 증발기를 통한 저온저압상태의 냉매가스가 상기 어큐뮬레이터(14)를 통해 실린더(8)로 유입되고, 이 유입된 냉매가스는 고압으로 압축되어 토출포트(11)를 통하여 토출밸브를 밀어올리며 소음기(10)를 거쳐 밀폐용기(1) 상부에 설치된 토출관(13)으로 토출된다.When the crankshaft 4 rotates, the eccentric portion 4a formed at the lower portion of the crankshaft 4 rotates, and the rotation of the eccentric portion 4a causes the roller 9 to eccentrically rotate. The refrigerant gas at low temperature and low pressure flows into the cylinder (8) through the accumulator (14). The refrigerant gas is compressed to a high pressure to push the discharge valve through the discharge port (11) and pass through the silencer (10). It is discharged to the discharge tube 13 provided on the sealed container (1).

첨부한 도 2는 종래의 크랭크축(4)의 편심부(4a)를 도시한 정면도로서, 상기 편심부(4a)는 상기 실린더(8)에 상부베어링(5)과 하부베어링(6)이 결합할 때 그 상단면과 하단면이 상부베어링(5)과 하부베어링(6)에 접하게 된다.2 is a front view showing the eccentric portion 4a of the conventional crankshaft 4, wherein the eccentric portion 4a is coupled with the upper bearing 5 and the lower bearing 6 to the cylinder 8. When the upper and lower surfaces are in contact with the upper bearing (5) and the lower bearing (6).

그러나, 상기와 같은 종래의 밀폐형 회전식 압축기는 크랭크축(4)의 편심부(4a)와 하부베어링(6)이 접한 상태에서 크랭크축(4)이 회전하게 되므로 오일의 적절한 공급이 없을 경우, 도 3에 도시한 바와 같이, 편심부(4a)의 하부베어링(6) 접촉면(B)에 이상마모가 발생하여 압축시 내부 누설을 발생시킬 수 있는 문제점이 있었던바, 이에 대한 보완이 요구되어 왔다.However, in the conventional hermetic rotary compressor as described above, when the crankshaft 4 rotates while the eccentric portion 4a of the crankshaft 4 and the lower bearing 6 are in contact with each other, there is no proper supply of oil. As shown in Fig. 3, there was a problem that abnormal wear occurred in the contact surface B of the lower bearing 6 of the eccentric portion 4a, thereby causing internal leakage during compression.

따라서, 본 고안은 상기와 같은 문제점을 감안하여 안출한 것으로서, 크랭크축의 편심부의 하부베어링 접촉면에 내마모성의 마모방지부재를 부착시킴으로써, 편심부와 하부베어링의 마찰손실을 감소시켜 마모를 방지하고 고압용 대체냉매 적용시에도 마모로 인한 내부누설을 방지할 수 있는 밀폐형 회전식 압축기의 크랭크축 마모방지장치를 제공하는데 그 목적이 있다.Therefore, the present invention has been made in view of the above problems, by attaching a wear-resistant wear-resistant member to the lower bearing contact surface of the eccentric portion of the crankshaft, to reduce the friction loss of the eccentric portion and the lower bearing to prevent wear and high pressure It is an object of the present invention to provide a crankshaft wear protection device of a hermetic rotary compressor that can prevent internal leakage due to abrasion even when applying a replacement refrigerant.

도 1은 일반적인 밀폐형 회전식 압축기를 도시한 종단면도,1 is a longitudinal sectional view showing a general hermetic rotary compressor;

도 2는 종래의 크랭크축의 하단부를 도시한 정면도,Figure 2 is a front view showing the lower end of the conventional crankshaft,

도 3은 도 2에서의 A-A선 단면도로서, 종래의 편심부와 접촉면을 도시한 도,3 is a cross-sectional view taken along the line A-A in FIG. 2, showing a conventional eccentric portion and a contact surface;

도 4는 본 고안의 크랭크축의 편심부와 마모방지부재를 도시한 분해사시도,Figure 4 is an exploded perspective view showing the eccentric portion and the wear protection member of the crankshaft of the present invention,

도 5는 본 고안에 따른 마모방지부재의 다른 실시예를 도시한 도.5 is a view showing another embodiment of a wear preventing member according to the present invention.

(도면의 주요부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)

4; 크랭크축4a; 편심부4; Crankshaft 4a; Eccentric

6; 하부베어링20,20a; 마모방지부재6; Lower bearings 20 and 20a; Wear-resistant member

21; 결합홀22; 홈21; Coupling hole 22; home

상기와 같은 목적을 달성하기 위하여 본 고안은 크랭크축의 하부에 형성되어 냉매가스를 압축시키도록 실린더에 내부에서 회전하는 편심부와, 상기 편심부와 하부베어링이 접촉하는 접촉면에 부착된 내마모성의 마모방지부재로 구성된 것을 특징으로 하는 밀폐형 회전식 압축기의 크랭크축 마모방지장치가 제공된다.In order to achieve the above object, the present invention is formed on the lower part of the crankshaft to prevent the wear-resistant wear-resistant attached to the eccentric portion that rotates inside the cylinder to contact the contact between the eccentric portion and the lower bearing to compress the refrigerant gas Provided is a crankshaft wear preventing device of a hermetic rotary compressor, comprising a member.

상기 마모방지부재는 하부베어링과의 접촉면적을 감소시켜 마찰손실을 저감하도록 다수개의 홈을 형성하는 것을 특징으로 한다.The wear preventing member is characterized in that for forming a plurality of grooves to reduce the friction loss by reducing the contact area with the lower bearing.

상기 마모방지부재는 자기 윤활성 재질로 됨이 바람직하다.The wear preventing member is preferably made of a self-lubricating material.

이하, 본 고안의 밀폐형 회전식 압축기의 크랭크축 마모방지장치의 일실시예를 첨부한 도면을 참조로 하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings an embodiment of the crankshaft wear preventing device of the hermetic rotary compressor of the present invention will be described in detail as follows.

본 고안의 밀폐형 회전식 압축기의 크랭크축 마모방지장치는, 도 4에 도시한 바와 같이, 크랭크축(4)의 하부에 형성되어 냉매가스를 압축시키도록 실린더에 내부에서 회전하는 편심부(4a)와, 상기 편심부(4a)와 하부베어링(6)이 접촉하는 상기 편심부(4a)의 접촉면에 부착되는 마모방지부재(20)로 구성된다.The crankshaft wear preventing device of the hermetic rotary compressor of the present invention, as shown in Figure 4, is formed in the lower portion of the crankshaft 4 and the eccentric portion (4a) that rotates inside the cylinder to compress the refrigerant gas and The wear prevention member 20 is attached to the contact surface of the eccentric portion 4a in contact with the eccentric portion 4a and the lower bearing 6.

상기 마모방지부재(20)는 크랭크축(4)의 회전력에 의한 편심부(4a)의 마모를 방지하기 위해 부착되는 것으로 내마모성의 재질로 되어 있다.The wear preventing member 20 is attached to prevent wear of the eccentric portion 4a by the rotational force of the crankshaft 4 is made of a wear-resistant material.

상기 마모방지부재(20)는 편심부(4a)의 하부베어링(6)과의 접촉면과 동일한 형상이다.The wear preventing member 20 has the same shape as the contact surface with the lower bearing 6 of the eccentric portion 4a.

또한, 상기 마모방지부재(20)를 상기 편심부(4a)에 부착시키기 위해 상기 마모방지부재(20)에는 결합홀(21)이 형성되어 있다.In addition, a coupling hole 21 is formed in the wear preventing member 20 to attach the wear preventing member 20 to the eccentric portion 4a.

상기와 같은 구성의 밀폐형 회전식 압축기의 크랭크축 마모방지장치의 작용을 설명하면 다음과 같다.Referring to the operation of the crankshaft wear protection device of the hermetic rotary compressor of the above configuration is as follows.

본 고안의 밀폐형 회전식 압축기의 크랭크축 마모방지장치는 크랭크축(4)의 편심부(4a)와 하부베어링(6)이 접하는 편심부(4a)의 접촉면에 마모를 방지하기 위한 내마모성 재질의 마모방지부재(20)를 부착함으로써, 오일의 적절한 공급이 없을 경우 크랭크축(4)의 회전력에 의한 편심부(4a)의 이상마모를 방지할 수 있게 된다.The crankshaft wear preventing device of the hermetic rotary compressor of the present invention is abrasion resistant material to prevent wear on the contact surface between the eccentric portion 4a of the crankshaft 4 and the eccentric portion 4a in contact with the lower bearing 6. By attaching the member 20, abnormal wear of the eccentric portion 4a due to the rotational force of the crankshaft 4 can be prevented when there is no proper supply of oil.

또한, 상기 마모방지부재(20)를 자기 윤활성 재질(self-lubricative material)로 하면 오일의 공급이 없을 경우 발생하는 마찰손실을 최대한 줄여 주게 되고, 따라서 편심부(4a)의 마모현상을 최대한으로 방지하게 된다.In addition, when the wear preventing member 20 is made of a self-lubricative material, the friction loss generated in the absence of oil supply is reduced to the maximum, and thus the wear phenomenon of the eccentric portion 4a is prevented to the maximum. Done.

첨부한 도 5는 본 고안의 다른 실시예를 도시한 것으로서, 마모방지부재(20a)가 편심부(4a)에 부착된 후 하부베어링(6)과 접촉하는 일면에 하부베어링(6)과의 접촉면적을 줄이도록 다양한 형상의 홈(22)이 형성되어 있다.5 is a view showing another embodiment of the present invention, in which a wear preventing member 20a is attached to an eccentric portion 4a and then contacted with a lower bearing 6 on one surface in contact with the lower bearing 6. Grooves 22 of various shapes are formed to reduce the area.

상기 홈(22)은 마모방지부재(20a)와 하부베어링(6)과의 접촉면적을 줄여주므로 마찰손실을 저감시킬 수 있다.The groove 22 may reduce the frictional loss since the contact area between the wear preventing member 20a and the lower bearing 6 is reduced.

본 고안의 밀폐형 회전식 압축기의 크랭크축 마모방지장치에 의하면 크랭크축 편심부의 하부베어링 접촉면의 마모를 방지하여 고압대체냉매 적용시에도 편심부의 마모로 인한 내부누설을 방지할 수 있는 효과가 있다.According to the crankshaft wear prevention device of the hermetic rotary compressor of the present invention, it is possible to prevent wear of the lower bearing contact surface of the crankshaft eccentric to prevent internal leakage due to wear of the eccentric.

또한, 마모방지부재를 자기 윤활성있는 재질로 하거나 접촉면적을 줄여 줄 수 있도록 홈을 형성함으로써, 마찰손실을 줄여 주므로 크랭크축의 신뢰성을 확보하고 압축기의 성능을 향상시킬 수 있는 효과가 있다.In addition, since the wear preventing member is made of a self-lubricating material or a groove is formed to reduce the contact area, friction loss is reduced, thereby ensuring the reliability of the crankshaft and improving the performance of the compressor.

Claims (3)

크랭크축의 하부에 형성되어 냉매가스를 압축시키도록 실린더에 내부에서 회전하는 편심부와, 상기 편심부와 하부베어링이 접촉하는 접촉면에 부착된 내마모성의 마모방지부재로 구성된 것을 특징으로 하는 밀폐형 회전식 압축기의 크랭크축 마모방지장치.A sealed rotary compressor comprising: an eccentric portion formed under the crankshaft and rotating inside the cylinder to compress the refrigerant gas; and an abrasion resistant wear preventing member attached to a contact surface between the eccentric portion and the lower bearing. Crankshaft wear protection. 제 1 항에 있어서, 상기 마모방지부재는 상기 하부베어링과의 접촉면적을 감소시켜 마찰손실을 저감하도록 다수개의 홈을 형성한 것을 특징으로 하는 밀폐형 회전식 압축기의 크랭크축 마모방지장치.2. The crankshaft wear preventing apparatus of claim 1, wherein the wear preventing member has a plurality of grooves formed therein so as to reduce frictional loss by reducing the contact area with the lower bearing. 제 1 항 또는 제 2 항에 있어서, 상기 마모방지부재는 자기 윤활성 재질로 된 것을 특징으로 하는 밀폐형 회전식 압축기의 크랭크축 마모방지장치.The crankshaft wear preventing apparatus of a hermetic rotary compressor according to claim 1 or 2, wherein the wear preventing member is made of a self-lubricating material.
KR2019970012635U 1997-05-30 1997-05-30 Device for preventing crank shaft abrasion of hermetic rotary compressor KR200148583Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019970012635U KR200148583Y1 (en) 1997-05-30 1997-05-30 Device for preventing crank shaft abrasion of hermetic rotary compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019970012635U KR200148583Y1 (en) 1997-05-30 1997-05-30 Device for preventing crank shaft abrasion of hermetic rotary compressor

Publications (2)

Publication Number Publication Date
KR19980068011U KR19980068011U (en) 1998-12-05
KR200148583Y1 true KR200148583Y1 (en) 1999-06-15

Family

ID=19502050

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019970012635U KR200148583Y1 (en) 1997-05-30 1997-05-30 Device for preventing crank shaft abrasion of hermetic rotary compressor

Country Status (1)

Country Link
KR (1) KR200148583Y1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100631332B1 (en) 2004-09-10 2006-10-09 주식회사리팩 Cam base structucture of main shaft for bag packing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100631332B1 (en) 2004-09-10 2006-10-09 주식회사리팩 Cam base structucture of main shaft for bag packing machine

Also Published As

Publication number Publication date
KR19980068011U (en) 1998-12-05

Similar Documents

Publication Publication Date Title
KR100558813B1 (en) The axis direction rise preventing device of eccentric bush for scroll compressor
KR200148583Y1 (en) Device for preventing crank shaft abrasion of hermetic rotary compressor
KR100873680B1 (en) Structure for preventing friction shift in hermetic type compressor
KR20010087908A (en) Bearing apparatus of rotary compressor
KR200252921Y1 (en) An abrasion preventive structure of rotor for compressor
KR100332788B1 (en) Structure for lubrication of compressor
KR0118673Y1 (en) Cylinder lock apparatus of closed compressor
KR100206819B1 (en) A rolling piston structure of hermetic compressor
KR0133033Y1 (en) Closed type rotary compressor
KR0161953B1 (en) A rotary compressor
KR0162470B1 (en) Cylinder bearing bonding apparatus of close type
KR20000046830A (en) Apparatus for preventing thermal deformation of cylinder of hermetic rotary compressor
KR100628181B1 (en) structure of roller in rotary compressor
KR0136591Y1 (en) Hermetic compressor
KR200164299Y1 (en) Crank shaft surface coating structure for sealed type rotary compressor
KR20010104156A (en) Lubrication apparatus for rotary compressor
KR0136610Y1 (en) A muffler of a closed type rotary compressor
KR19980078114A (en) Hermetic Rotary Compressor
KR0136056Y1 (en) Rotary compressor
KR19990012895U (en) Accumulator coupling structure of hermetic rotary compressor
KR940000193Y1 (en) Scroll compressor
KR20020023506A (en) Structure for reducing load of rotary compressor
KR19980056201U (en) Cylinder structure of hermetic rotary compressor
KR20010097684A (en) Structure for supporting shaft in compressor
KR19990009751U (en) High and low pressure separator of hermetic rotary compressor

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20100223

Year of fee payment: 12

LAPS Lapse due to unpaid annual fee