KR100652598B1 - Device for supplying oil of reciprocating compressor - Google Patents

Device for supplying oil of reciprocating compressor Download PDF

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Publication number
KR100652598B1
KR100652598B1 KR1020050043267A KR20050043267A KR100652598B1 KR 100652598 B1 KR100652598 B1 KR 100652598B1 KR 1020050043267 A KR1020050043267 A KR 1020050043267A KR 20050043267 A KR20050043267 A KR 20050043267A KR 100652598 B1 KR100652598 B1 KR 100652598B1
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South Korea
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lubricating oil
hole
frame
suction
pumping hole
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KR1020050043267A
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Korean (ko)
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KR20060120996A (en
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이종구
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엘지전자 주식회사
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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
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/0276—Lubrication characterised by the compressor type the pump being of the reciprocating piston type, e.g. oscillating, free-piston compressors
    • 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
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/023—Hermetic compressors
    • F04B39/0261—Hermetic compressors with an auxiliary oil pump
    • 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
    • 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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • 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
    • 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
    • F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
    • 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
    • F05B2260/00—Function
    • F05B2260/98—Lubrication
    • 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
    • Y10S251/00—Valves and valve actuation

Abstract

본 발명에 의한 왕복동식 압축기의 윤활유 공급 장치는, 케이싱에 충전된 윤활유에 잠기도록 윤활유안내관이 연결되는 윤활유흡입공과, 그 윤활유흡입공에 일단이 연통되고 타단은 상기 윤활유안내관을 통해 케이싱의 윤활유를 펌핑하도록 윤활유펌핑부가 연결 설치되는 윤활유펌핑공과, 그 윤활유펌핑공에 연통되어 윤활유를 실린더와 피스톤 사이로 안내하도록 형성되는 윤활유공급유로를 구비하는 프레임; 상기 프레임의 윤활유흡입공과 윤활유펌핑공을 연통시키는 동시에 그 윤활유펌핑공을 윤활유공급유로에 연통시키도록 윤활유연통홈을 형성하는 윤활유커버; 및 상기 프레임과 윤활유커버 사이에 개재하여 상기 윤활유펌핑공을 개폐하는 흡입측 개폐부와 상기 윤활유커버의 윤활유연통홈을 개폐하도록 토출측 개폐부를 가지는 윤활유밸브;를 포함함으로써, 부품수를 줄여 생산원가를 절감할 수 있을 뿐만 아니라 조립공정을 간소화하여 조립오차로 인한 윤활유공급부족을 미연에 방지함과 아울러 실린더와 피스톤 사이에 윤활유를 원활하게 공급하여 압축기의 신뢰성을 높일 수 있다.The lubricating oil supply apparatus of the reciprocating compressor according to the present invention includes a lubricating oil suction hole connected to a lubricating oil guide tube so as to be immersed in the lubricating oil filled in the casing, and one end of the lubricating oil suction hole and the other end of the casing through the lubricating oil suction tube. A frame having a lubricating oil pumping hole in which a lubricating oil pumping part is connected and installed to pump the lubricating oil, and a lubricating oil supply passage formed in communication with the lubricating oil pumping hole to guide the lubricating oil between the cylinder and the piston; A lubricating oil cover which connects the lubricating oil suction hole and the lubricating oil pumping hole of the frame and forms a lubricating oil communication groove to communicate the lubricating oil pumping hole with the lubricating oil supply passage; And a lubricating oil valve having a suction side opening and closing portion for opening and closing the lubricating oil pumping hole and a discharge side opening and closing portion for opening and closing the lubricating oil communication groove of the lubricating oil cover, interposed between the frame and the lubricating oil cover. In addition, the assembly process can be simplified to prevent shortage of lubricating oil supply due to assembly errors and to smoothly supply lubricating oil between the cylinder and the piston to increase the reliability of the compressor.

Description

왕복동식 압축기의 윤활유 공급 장치{DEVICE FOR SUPPLYING OIL OF RECIPROCATING COMPRESSOR}Lubricant supply device for reciprocating compressors {DEVICE FOR SUPPLYING OIL OF RECIPROCATING COMPRESSOR}

도 1은 종래 왕복동식 압축기의 일례를 보인 단면도,1 is a cross-sectional view showing an example of a conventional reciprocating compressor,

도 2는 종래 왕복동식 압축기에서 윤활유밸브조립체를 분해하여 보인 사시도,Figure 2 is a perspective view showing an exploded lubricating oil valve assembly in a conventional reciprocating compressor,

도 3은 종래 왕복동식 압축기에서 윤활유밸브조립체를 조립하여 보인 단면도,3 is a cross-sectional view showing the assembly of the lubricating oil valve assembly in the conventional reciprocating compressor,

도 4는 본 발명 왕복동식 압축기에서 윤활유밸브조립체를 분해하여 보인 사시도,4 is an exploded perspective view illustrating the lubricating oil valve assembly in the reciprocating compressor according to the present invention;

도 5 및 도 6은 본 발명 왕복동식 압축기에서 윤활유밸브조립체를 조립하여 보인 정면도 및 단면도.5 and 6 are a front view and a cross-sectional view showing the assembly of the lubricating oil valve assembly in the reciprocating compressor of the present invention.

** 도면의 주요 부분에 대한 부호의 설명 **** Description of symbols for the main parts of the drawing **

110 : 전방프레임 111 : 윤활유흡입공110: front frame 111: lubricating oil suction hole

112 : 윤활유펌핑공 113 : 윤활유공급유로112: lubricating oil pumping hole 113: lubricating oil supply passage

114 : 윤활유공급홈 120 : 윤활유밸브조립체114: lubricant supply groove 120: lubricant valve assembly

121 : 윤활유커버 121a : 수평측 윤활유연통홈121: Lubricant cover 121a: Lubricant communication groove on the horizontal side

121b : 수직측 윤활유연통홈 122 : 윤활유밸브121b: Vertical side lubricant communication groove 122: Lube oil valve

122a : 흡입측 개폐부 122b : 토출측 개폐부122a: suction side opening and closing portion 122b: discharge side opening and closing portion

본 발명은 왕복동식 압축기의 윤활유 공급 장치에 관한 것으로, 특히 윤활유밸브조립체를 간소화하여 비용을 절감하고 신뢰성을 높일 수 있는 왕복동식 압축기의 윤활유 공급 장치에 관한 것이다.The present invention relates to a lubricating oil supply device for a reciprocating compressor, and more particularly, to a lubricating oil supply device for a reciprocating compressor that can reduce costs and increase reliability by simplifying a lubricating oil valve assembly.

종래의 왕복동식 압축기는 도 1에 도시한 바와 같이, 소정량의 윤활유를 채우는 케이싱(10)과, 케이싱(10)의 내부에 탄력적으로 설치하는 프레임유니트(20)와, 프레임유니트(20)에 고정하여 가동자(33)가 직선으로 왕복운동을 하는 왕복동모터(30)와, 왕복동모터(30)의 가동자(33)에 피스톤(42)을 결합하여 상기한 프레임유니트(20)로 지지하는 압축유니트(40)와, 왕복동모터(30)의 가동자(33)와 압축유니트의 피스톤(42)을 운동방향으로 탄력 지지하여 공진운동을 유도하는 공진스프링유니트(50)와, 프레임유니트(20)에 장착하여 케이싱(10)의 윤활유를 압축유니트(40)의 미끄럼부로 펌핑하는 윤활유 공급유니트(60)로 구성하고 있다.Conventional reciprocating compressors, as shown in Figure 1, the casing 10 to fill a predetermined amount of lubricating oil, the frame unit 20 is elastically installed in the casing 10, and the frame unit 20 The piston 33 is coupled to the mover 33 of the reciprocating motor 30 and the mover 33 reciprocates in a straight line and fixed to the frame unit 20. The compression unit 40, the resonator spring unit 50 for inducing the resonant movement by elastically supporting the mover 33 of the reciprocating motor 30 and the piston 42 of the compression unit in the movement direction, and the frame unit 20 And a lubricating oil supply unit 60 which pumps the lubricating oil of the casing 10 to the sliding portion of the compression unit 40.

프레임유니트(20)는 후술할 압축유니트(40)의 실린더(41)와 왕복동모터(30)의 전방측을 지지하는 전방프레임(21)과, 전방프레임(21)에 결합하여 왕복동모터(30)의 후방측을 지지하는 중간프레임(22)과, 중간프레임(22)에 결합하여 공진스프링유니트(60)를 지지하는 후방프레임(23)으로 이루어져 있다.The frame unit 20 is coupled to the front frame 21 and the front frame 21 supporting the front side of the cylinder 41 and the reciprocating motor 30 of the compression unit 40 to be described later, the reciprocating motor 30 An intermediate frame 22 supporting the rear side of the rear frame 23 is coupled to the intermediate frame 22 to support the resonant spring unit 60.

왕복동모터(30)는 전방프레임(21)과 중간프레임(22) 사이에 설치하는 외측고 정자(31)와, 외측고정자(31)와 일정 간격을 두고 결합하여 전방프레임(21)에 고정한 실린더(41)에 삽입 설치하는 내측고정자(32)와, 외측고정자(31)와 내측고정자(32) 사이에 설치하여 직선으로 왕복운동을 하는 가동자(33)로 이루어져 있다.The reciprocating motor 30 has an outer stator 31 installed between the front frame 21 and the intermediate frame 22 and a cylinder fixed to the front frame 21 by being coupled to the outer stator 31 at a predetermined interval ( The inner stator 32 is inserted into and installed in 41, and the movable part 33 is installed between the outer stator 31 and the inner stator 32 to reciprocate in a straight line.

압축유니트(40)는 전방프레임(21)에서 고정 설치하는 실린더(41)와, 왕복동모터(30)의 가동자(33)에 결합하여 실린더(41)의 압축공간(P)에서 왕복운동을 하는 피스톤(42)과, 피스톤(42)의 선단에 장착하여 그 피스톤(42)의 흡입유로(F)를 개폐하면서 냉매가스의 흡입을 제한하는 흡입밸브(43)와, 실린더(41)의 토출측에 장착하여 압축공간(P)을 개폐하면서 압축가스의 토출을 제한하는 토출밸브(44)와, 토출밸브(44)를 탄력적으로 지지하는 밸브스프링(45)과, 토출밸브(44)와 밸브스프링(45)을 수용하도록 실린더(42)의 토출측을 복개하여 전방프레임(21)에 고정하는 토출커버(46)로 이루어져 있다.The compression unit 40 is coupled to the cylinder 41 fixedly installed at the front frame 21 and the mover 33 of the reciprocating motor 30 to reciprocate in the compression space P of the cylinder 41. On the inlet valve 43 and the discharge side of the cylinder 41, which are attached to the piston 42 and the tip of the piston 42 to restrict the intake of the refrigerant gas while opening and closing the inlet flow path F of the piston 42. And a discharge valve 44 for restricting the discharge of the compressed gas while opening and closing the compression space P, a valve spring 45 for elastically supporting the discharge valve 44, a discharge valve 44 and a valve spring ( A discharge cover 46 which covers the discharge side of the cylinder 42 to accommodate the 45 and is fixed to the front frame 21.

공진스프링유니트(50)는 가동자(33)와 피스톤(42)에 함께 결합하는 스프링지지대(51)와, 스프링지지대(51)의 전방측을 지지하는 전방측 공진스프링(52)과, 연스프링지지대(51)의 후방측을 지지하는 후방측 공진스프링(53)으로 이루어져 있다.The resonant spring unit 50 includes a spring support 51 coupled to the mover 33 and the piston 42, a front resonant spring 52 supporting the front side of the spring support 51, and a soft spring. It consists of a rear side resonance spring 53 for supporting the rear side of the support 51.

윤활유 공급유니트(60)는 전방프레임(21)과 중간프레임(22) 사이의 하반부에 장착하여 그 프레임유니트(20)와 함께 진동하면서 케이싱(10)의 윤활유를 펌핑하는 윤활유펌핑부(61)와, 윤활유펌핑부(61)의 출구측에 설치하여 상기 전방프레임(21)에 구비하는 윤활유공급유로(21a)로 안내하는 윤활유밸브조립체(66)로 이루어져 있다.The lubricating oil supply unit 60 is mounted on the lower half between the front frame 21 and the intermediate frame 22, and lubricating oil pumping part 61 pumping the lubricating oil of the casing 10 while vibrating with the frame unit 20. The lubricant valve assembly 66 is installed on the outlet side of the lubricant pump 61 to guide the lubricant oil supply passage 21a provided in the front frame 21.

윤활유펌핑부(61)는 전방프레임(21)의 하반부에 삽입하여 장착하는 윤활유실 린더(62)와, 윤활유실린더(62)의 내부에 미끄러지게 삽입하여 윤활유를 펌핑하는 윤활유피스톤(63)과, 윤활유피스톤(63)의 양단을 탄력 지지하는 제1 윤활유스프링(64A) 및 제2 윤활유스프링(64B)과, 케이싱(10)의 윤활유를 흡입하여 상기 윤활유실린더(62)로 안내하는 윤활유안내관(65)으로 이루어져 있다.The lubricating oil pumping unit 61 includes a lubricating oil cylinder 62 inserted into the lower half of the front frame 21 and a lubricating oil piston 63 slidably inserted into the lubricating oil cylinder 62 to pump the lubricating oil; Lubricating oil guide pipe which sucks the lubricating oil of the first lubricating oil spring 64A and the second lubricating oil spring 64B and the casing 10, and guides the lubricating oil cylinder 62 to both ends of the lubricating oil piston 63. It consists of 65).

윤활유밸브조립체(66)는 전방프레임(21)의 전면에 설치하여 윤활유실린더(62)와 전방프레임(21)의 윤활유공급유로(21a) 사이를 개폐하는 윤활유밸브(67)와, 윤활유밸브(67)의 바깥면에 배치하는 윤활유시트(68)와, 윤활유밸브(67)와 윤활유시트(68)를 수용하여 상기 전방프레임(21)에 고정하는 윤활유커버(69)로 이루어져 있다.The lubricating oil valve assembly 66 is installed on the front of the front frame 21 to open and close the lubricating oil valve 67 and the lubricating oil supply passage 21a of the front frame 21, and the lubricating oil valve 67. Lubricating oil sheet 68 disposed on the outer surface of the), and the lubricant valve 67 and the lubricating oil cover (68) for receiving and fixing to the front frame (21).

윤활유밸브(67)는 도 2에서와 같이 그 하반부 일측에 윤활유안내관(65)과 연통되도록 밸브측 윤활유통공(67a)을 형성하고, 상하 양측에는 각각 흡입측 개폐부(67b)와 토출측 개폐부(67c)를 절개 형성하고 있다. The lubricating oil valve 67 forms a valve side lubricating oil hole 67a to communicate with the lubricating oil guide tube 65 on one side of the lower half thereof as shown in FIG. 2, and the suction side opening and closing part 67b and the discharge side opening and closing part 67c on both upper and lower sides, respectively. ) Incision is formed.

윤활유시트(68)는 그 하반부 일측에 상기 윤활유밸브(67)와 연통되도록 시트측 윤활유통공(68a)을 형성하고, 하반부에는 윤활유밸브(67)의 흡입측 개폐부(67b)에 의해 개폐되도록 원형의 흡입구멍(68b)을 형성하는 반면 상반부에는 윤활유밸브(67)의 토출측 개폐부(67c)에 의해 개폐되도록 '역티자(⊥)" 모양의 토출구멍(68c)을 형성하고 있다.The lubricating oil sheet 68 forms a seat side lubricating oil distribution hole 68a to communicate with the lubricating oil valve 67 at one side of the lower half thereof, and has a circular shape so as to be opened and closed by the suction side opening and closing portion 67b of the lubricating oil valve 67 at the lower half thereof. While forming the suction hole 68b, the upper half portion is formed with a discharge hole 68c having an inverted tee shape so as to be opened and closed by the discharge side opening and closing portion 67c of the lubricating oil valve 67.

윤활유커버(69)는 그 하반부에 상기 윤활유시트(68)의 시트측 윤활유통공(68a)과 흡입구멍(68b)을 연통하도록 횡방향으로 누운 흡입연통홈(69a)을 형성하고, 그 상반부에는 상기 전방프레임(21)의 전방면 상하 양측에 구비하는 밸브수용 홈(21b)(21c)을 연통하도록 종방향으로 세운 토출연통홈(69b)을 상기한 흡입연통홈(69a)과는 별개로 형성하고 있다.The lubricating oil cover 69 forms a suction communication groove 69a lying in the transverse direction to communicate the seat side lubrication oil hole 68a of the lubricating oil sheet 68 and the suction hole 68b at the lower half thereof. Discharge communication grooves 69b vertically formed so as to communicate with valve receiving grooves 21b and 21c provided on both sides of the front surface of the front frame 21 are formed separately from the suction communication grooves 69a. have.

도면중 미설명 부호인 21d는 안내관삽입구멍, 21e는 실린더연통구멍이다.In the figure, reference numeral 21d denotes a guide tube insertion hole, and 21e denotes a cylinder communication hole.

상기와 같은 종래 왕복동식 압축기는 다음과 같이 동작한다.The conventional reciprocating compressor as described above operates as follows.

즉, 왕복동모터(30)에 전원을 인가하여 외측고정자(31)와 내측고정자(32) 사이에 플럭스(flux)를 형성하면, 그 외측고정자(31)와 내측고정자(32) 사이의 공극에 놓인 가동자(33)가 플럭스의 방향에 따라 움직이면서 공진스프링유니트(50)에 의해 지속적으로 왕복운동을 하고, 이와 함께 피스톤(42)이 실린더(41)의 내부에서 왕복운동을 하면서 압축공간(P)의 체적이 변화하여 냉매가스를 압축공간(P)으로 흡입 압축하였다가 토출하는 일련의 과정을 반복한다.That is, when a flux is formed between the outer stator 31 and the inner stator 32 by applying power to the reciprocating motor 30, the gap between the outer stator 31 and the inner stator 32 lies in the gap. As the mover 33 moves in the direction of the flux, the resonant spring unit 50 continuously reciprocates, and the piston 42 reciprocates in the cylinder 41 while the compression space P The volume of is changed and a series of processes of suction and compression of the refrigerant gas into the compression space (P) is repeated.

이때, 프레임유니트(20)와 함께 진동하는 윤활유펌핑부(61)의 윤활유피스톤(63)이 윤활유실린더(62)의 내부에서 상대운동을 하면서 케이싱(10) 내부의 윤활유를 펌핑하고, 이 윤활유는 윤활유안내관(65)을 통해 윤활유밸브(67)와 윤활유시트(68)의 윤활유통공(67a)(68a)으로 유입되며, 이 윤활유는 흡입연통홈(69a)으로 유입되었다가 윤활유밸브(67)의 흡입측 개폐부(67b)를 열고 전방프레임(21)의 흡입측 밸브수용홈(21b)으로 유입된다. 이후 윤활유커버(69)의 토출연통홈(69b)을 통해 전방프레임(21)의 토출측 밸브수용홈(21c)으로 이동하였다가 윤활유공급유로(21a)를 통해 공급되는 것이었다.At this time, the lubricating oil piston 63 of the lubricating oil pumping part 61 vibrating with the frame unit 20 pumps the lubricating oil inside the casing 10 while making a relative movement in the lubricating oil cylinder 62. The lubricating oil valve 67 and the lubricating oil holes 67a and 68a of the lubricating oil sheet 68 are introduced through the lubricating oil guide tube 65, and the lubricating oil is introduced into the suction communication groove 69a and then the lubricating oil valve 67. The suction side opening / closing portion 67b is opened and flows into the suction side valve receiving groove 21b of the front frame 21. Thereafter, the discharge communication groove 69b of the lubricating oil cover 69 moved to the discharge-side valve receiving groove 21c of the front frame 21 and was supplied through the lubricating oil supply passage 21a.

그러나, 상기와 같은 종래 왕복동식 압축기의 윤활유 공급 장치에 있어서는, 도 2 및 도 3에서와 같이 윤활유밸브조립체(66)를 윤활유밸브(67)와 윤활유시트 (68) 그리고 윤활유커버(69)로 구성함에 따라 부품수가 증가하여 생산비용이 증가할 뿐만 아니라 조립공정이 복잡하여 자칫 조립순서가 바뀔 경우 윤활유밸브(67)가 원활하게 작동하지 않아 압축기의 신뢰성이 저하될 우려가 있었다.However, in the lubricating oil supply device of the conventional reciprocating compressor as described above, the lubricating oil valve assembly 66 is composed of a lubricating oil valve 67, a lubricating oil sheet 68 and a lubricating oil cover 69 as shown in Figs. As the number of parts increases, as well as the production cost increases, the assembly process is complicated, and if the assembly order is changed, the lubricating oil valve 67 does not operate smoothly, which may reduce the reliability of the compressor.

본 발명은 상기와 같은 종래 왕복동식 압축기의 윤활유 공급 장치가 가지는 문제점을 감안하여 안출한 것으로, 부품수를 줄여 생산비용을 절감할 수 있을 뿐만 아니라 조립공정을 간소화하여 윤활유밸브가 원활하게 작동되도록 하는 왕복동식 압축기의 윤활유 공급 장치를 제공하려는데 본 발명의 목적이 있다.The present invention has been made in view of the problems of the lubricating oil supply device of the conventional reciprocating compressor as described above, to reduce the number of parts to reduce the production cost as well as to simplify the assembly process to operate the lubricating oil valve smoothly It is an object of the present invention to provide a lubricating oil supply device for a reciprocating compressor.

본 발명의 목적을 달성하기 위하여, 케이싱에 충전된 윤활유에 잠기도록 윤활유안내관이 연결되는 윤활유흡입공과, 그 윤활유흡입공에 일단이 연통되고 타단은 상기 윤활유안내관을 통해 케이싱의 윤활유를 펌핑하도록 윤활유펌핑부가 연결 설치되는 윤활유펌핑공과, 그 윤활유펌핑공에 연통되어 윤활유를 실린더와 피스톤 사이로 안내하도록 형성되는 윤활유공급유로를 구비하는 프레임; 상기 프레임의 윤활유흡입공과 윤활유펌핑공을 연통시키는 동시에 그 윤활유펌핑공을 윤활유공급유로에 연통시키도록 윤활유연통홈을 형성하는 윤활유커버; 및 상기 프레임과 윤활유커버 사이에 개재하여 상기 윤활유펌핑공을 개폐하는 흡입측 개폐부와 상기 윤활유커버의 윤활유연통홈을 개폐하도록 토출측 개폐부를 가지는 윤활유밸브;를 포함한 것을 특징으로 하는 것을 특징으로 하는 왕복동식 압축기의 윤활유 공급 장치를 제공한다.In order to achieve the object of the present invention, the lube oil suction hole is connected to the lubricant guide tube so as to be immersed in the lubricant filled in the casing, and one end is in communication with the lubricant suction hole and the other end to pump the lubricant oil of the casing through the lubricant guide tube. A frame including a lubricating oil pumping hole connected to and installed with a lubricating oil pumping part, and a lubricating oil supply passage formed in communication with the lubricating oil pumping hole to guide the lubricating oil between the cylinder and the piston; A lubricating oil cover which connects the lubricating oil suction hole and the lubricating oil pumping hole of the frame and forms a lubricating oil communication groove to communicate the lubricating oil pumping hole with the lubricating oil supply passage; And a lubricating oil valve having a suction side opening and closing portion for opening and closing the lubricating oil pumping hole and a discharge side opening and closing portion for opening and closing the lubricating oil communication groove of the lubricating oil cover, interposed between the frame and the lubricating oil cover. It provides a lubricant supply device of the compressor.

이하, 본 발명에 의한 왕복동식 압축기의 윤활유 공급 장치를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, the lubricating oil supply apparatus of the reciprocating compressor by this invention is demonstrated in detail based on one Example shown in an accompanying drawing.

도 4는 본 발명 왕복동식 압축기에서 윤활유밸브조립체를 분해하여 보인 사시도이고, 도 5 및 도 6은 본 발명 왕복동식 압축기에서 윤활유밸브조립체를 조립하여 보인 정면도 및 단면도이다.Figure 4 is a perspective view showing an exploded lubricating oil valve assembly in the reciprocating compressor of the present invention, Figures 5 and 6 are a front view and a cross-sectional view showing the assembled lubricating oil valve assembly in the reciprocating compressor of the present invention.

이에 도시된 바와 같이 본 발명의 왕복동식 압축기는, 소정량의 윤활유를 채운 케이싱(10)(도 1에 도시)의 내부에 전방프레임(110)과 중간프레임(22)(도 1에 도시) 그리고 후방프레임(23)(도 1에 도시)을 서로 연결하여 탄력적으로 지지 설치하고, 전방프레임(110)과 중간프레임(22)의 사이에는 외측고정자(31)(도 1에 도시)와 내측고정자(32)(도 1에 도시) 그리고 두 고정자(31)(32) 사이에서 직선으로 왕복운동을 하는 가동자(33)(도 1에 도시)로 된 왕복동모터(30)(도 1에 도시)를 설치하며, 왕복동모터(30)의 내측고정자(32) 안쪽에는 전방프레임(110)에 고정하는 실린더(41)(도 1에 도시)와 그 실린더(41)에 미끄러지게 삽입하여 왕복동모터(30)의 가동자(33)와 함께 직선으로 왕복운동을 하는 피스톤(42)(도 1에 도시) 그리고 그 피스톤(42)의 흡입유로(F)(도 1에 도시)를 개폐하는 흡입밸브(43)(도 1에 도시)와 실린더(41)의 토출측을 개폐하는 토출밸브(44)(도 1에 도시)를 설치한다. 또, 중간프레임(22)과 후방프레임(23)의 사이에는 상기 왕복동모터(30)의 가동자(33)와 피스톤(42)을 탄력적으로 지지하여 공진운동을 유도하도록 전방측 공진스프링(52)(도 1에 도시)과 후방측 공진스프링(53)(도 1에 도시)을 설치하고, 전방프레임(110)과 후방프레임(23)의 사이에는 케이싱(10)의 윤활유를 펌핑하여 후술할 전방프레임(110)의 윤활유공급유로(113)를 통해 실린더(41)와 피스톤(42) 사이로 공급하는 윤활유펌핑부(61)(도 1에 도시)를 설치하며, 전방프레임(110)의 전방면 하반부에는 상기 윤활유펌핑부(61)에서 펌핑되는 윤활유를 상기 윤활유공급유로(113)로 안내하는 윤활유밸브조립체(120)를 설치한다.As shown therein, the reciprocating compressor of the present invention includes a front frame 110 and an intermediate frame 22 (shown in FIG. 1) inside a casing 10 (shown in FIG. 1) filled with a predetermined amount of lubricant. The rear frame 23 (shown in FIG. 1) is elastically supported by connecting to each other, and between the front frame 110 and the intermediate frame 22, the outer stator 31 (shown in FIG. 1) and the inner stator ( 32) (refer to FIG. 1) and a reciprocating motor 30 (shown in FIG. 1) consisting of a movable element 33 (shown in FIG. 1) which reciprocates in a straight line between the two stators 31 and 32. And a cylinder 41 (shown in FIG. 1) fixed to the front frame 110 inside the inner stator 32 of the reciprocating motor 30 and slidably inserted into the cylinder 41 to reciprocate the motor 30. To open and close the piston 42 (shown in FIG. 1) and the suction flow path F (shown in FIG. 1) of the piston 42 in a linear reciprocating motion with the mover 33 of Install the mouth valve 43 (shown in Figure 1) and the discharge valve 44 for opening and closing the discharge side of the cylinder 41 (shown in Figure 1). In addition, between the intermediate frame 22 and the rear frame 23, the front resonant spring 52 to elastically support the mover 33 and the piston 42 of the reciprocating motor 30 to induce a resonant movement. (Shown in FIG. 1) and a rear resonant spring 53 (shown in FIG. 1), and the lubricant of the casing 10 is pumped between the front frame 110 and the rear frame 23 to be described later. A lubricating oil pump 61 (shown in FIG. 1) is installed to supply the cylinder 41 and the piston 42 through the lubricating oil supply passage 113 of the frame 110, and the lower half of the front surface of the front frame 110. The lubricating oil valve assembly 120 for guiding the lubricating oil pumped by the lubricating oil pumping unit 61 to the lubricating oil supply passage 113 is installed.

전방프레임(110)은 그 하반부 일측에 후술할 윤활유안내관(65)을 연통 삽입하여 케이싱(10)의 윤활유를 흡입하도록 안내하는 윤활유흡입공(111)을 형성하고, 상기 윤활유흡입공(111)의 일측에는 그 윤활유흡입공(111)이 후술할 윤활유커버(121)의 수평측 연통홈(121a)에 의해 연통되도록 윤활유펌핑공(112)을 형성하며, 상기 윤활유펌핑공(112)의 상측에는 그 윤활유펌핑공(112)과 윤활유흡입공(111)이 후술할 윤활유커버(121)의 수직측 연통홈(121b)에 의해 연통되어 펌핑되는 윤활유를 실린더(41)와 피스톤(42) 사이로 안내하는 윤활유공급유로(113)가 형성된다. 상기 윤활유펌핑공(112)의 타측에는 윤활유를 펌핑할 수 있도록 상기 윤활유실린더(62)를 연결한다.The front frame 110 forms a lubricating oil suction hole 111 for guiding suction of the lubricating oil of the casing 10 by inserting a lubricating oil guide tube 65 to be described later on one side of the lower half thereof, and the lubricating oil suction hole 111. On one side of the lubricating oil suction hole 111 to form a lubricating oil pumping hole 112 so as to communicate with the horizontal communication groove 121a of the lubricating oil cover 121 to be described later, the upper side of the lubricating oil pumping hole 112 The lubricating oil pumping hole 112 and the lubricating oil suction hole 111 communicate with each other by the vertical communication groove 121b of the lubricating oil cover 121 to be described later to guide the lubricating oil pumped between the cylinder 41 and the piston 42. A lubricating oil supply passage 113 is formed. The other side of the lubricating oil pumping hole 112 connects the lubricating oil cylinder 62 to pump the lubricating oil.

윤활유공급유로(113)의 입구단에는 소정량의 윤활유가 채워지도록 윤활유공급홈(114)을 음형지게 형성하고, 윤활유흡입공(111)은 그 중심을 윤활유펌핑공(112)의 중심 보다는 높거나 같게 형성하는 것이 윤활유를 원활하게 공급하는데 바람직하다.The inlet end of the lubricating oil supply passage 113 is formed so that the lubricating oil supply groove 114 is negatively filled to fill a predetermined amount of lubricating oil, and the lubricating oil suction hole 111 has a center higher than that of the lubricating oil pumping hole 112. It is preferable to form the same to smoothly supply the lubricating oil.

윤활유밸브조립체(120)는 전방프레임(110)의 윤활유흡입공(111)과 윤활유펌핑공(112)을 연통시키는 동시에 그 윤활유펌핑공(112)을 윤활유공급유로(113)에 연통시키는 윤활유커버(121)와, 전방프레임(110)과 윤활유커버(121) 사이에 개재하여 상기 윤활유펌핑공(112)을 개폐하는 윤활유밸브(122)로 이루어진다.The lubricating oil valve assembly 120 communicates with the lubricating oil suction hole 111 and the lubricating oil pumping hole 112 of the front frame 110 and simultaneously connects the lubricating oil pumping hole 112 to the lubricating oil supply passage 113 ( 121 and a lubricating oil valve 122 that opens and closes the lubricating oil pumping hole 112 between the front frame 110 and the lubricating oil cover 121.

윤활유커버(121)는 정면투영시 사각판체 모양으로 형성하되, 그 중앙에는 상기한 윤활유흡입공(111)과 윤활유펌핑공(112)을 연통시키는 수평측 윤활유연통홈(이하, '수평측 연통홈'으로 약칭함)(121a)을 횡방향으로 형성하고, 수평측 연통홈(121a)의 중간부위에는 상기한 윤활유펌핑공(112)을 윤활유공급유로(113)를 연통시키는 수직측 윤활유연통홈(이하,'수직측 연통홈'으로 약칭함)(121b)을 종방향으로 연결하여 형성한다. 여기서, 수평측 연통홈(121a)과 수직측 연통홈(121b)은 소정의 내부공간을 가지도록 바깥쪽으로 함몰지게 형성할 수도 있고 도면으로 도시하지는 않았으나 소정의 깊이만큼 음형지게 형성할 수도 있다.Lubricating oil cover 121 is formed in the shape of a square plate when the front projection, the center of the horizontal lubricating oil communication groove (hereinafter referred to as' horizontal side communication groove) communicating the lubricating oil suction hole 111 and the lubricating oil pumping hole 112 (A) abbreviated (121a) in the horizontal direction, the vertical side of the lubricating oil communication groove (120) for communicating the lubricating oil supply passage 113 with the lubricating oil pumping hole (112) in the middle portion of the horizontal communication groove (121a) Hereinafter, the abbreviation of “vertical side communication groove” 121b is formed by connecting in the longitudinal direction. Here, the horizontal side communication groove 121a and the vertical side communication groove 121b may be formed to be recessed outwardly to have a predetermined internal space or may be formed to be negative for a predetermined depth although not shown in the drawing.

윤활유밸브(122)는 정면투영시 윤활유커버(121)와 함께 전방프레임(110)에 볼트로 체결될 수 있도록 사각판체 모양의 박판으로 형성하되, 그 하반부에는 상기한 전방프레임(110)의 윤활유흡입공(111)을 개폐하도록 흡입측 개폐부(122a)를 형성하고, 그 상반부에는 상기 흡입측 개폐부(122a)와는 별도로 상기한 윤활유커버(121)의 수직측 연통홈(121b)을 개폐하도록 토출측 개폐부(122b)를 형성한다.The lubricating oil valve 122 is formed of a thin plate of a rectangular plate shape so that it can be fastened to the front frame 110 together with the lubricating oil cover 121 in the front projection 110, the lower half of the lubricating oil suction of the front frame 110 The suction side opening and closing part 122a is formed to open and close the ball 111, and the discharge side opening and closing part is formed in the upper half of the discharge side opening and closing part so as to open and close the vertical communication groove 121b of the lubricating oil cover 121 separately from the suction side opening and closing part 122a. 122b).

도면중 종래와 동일한 부분에 대하여는 동일한 부호를 부여하였다.In the drawings, the same reference numerals are given to the same parts as in the prior art.

상기와 같은 본 발명 왕복동식 압축기의 윤활유 공급 장치는 다음과 같은 작용 효과를 갖는다.The lubricating oil supply device of the reciprocating compressor of the present invention as described above has the following effects.

즉, 왕복동모터(30)에 전원을 인가하여 외측고정자(31)와 내측고정자(32) 사이에 플럭스(flux)를 형성하면, 가동자(33)가 플럭스의 방향에 따라 움직이면서 공진스프링(52)(53)에 의해 지속적으로 왕복운동을 하고, 이와 함께 피스톤(42)이 실린더(41)의 내부에서 왕복운동을 하면서 냉매가스를 압축공간(P)으로 흡입 압축하였다가 토출한다.That is, when a flux is formed between the outer stator 31 and the inner stator 32 by applying power to the reciprocating motor 30, the resonator spring 52 moves while the mover 33 moves in the direction of the flux. By 53, the piston 42 continuously reciprocates, and while the piston 42 reciprocates in the cylinder 41, the refrigerant gas is sucked and compressed into the compression space P and then discharged.

이때, 윤활유펌핑부(보다 구체적으로는 윤활유피스톤)(61)가 도 6에서 우측으로 진동을 하는 경우에는 윤활유실린더(62)의 전방측 공간(도 6에서 좌측 공간)이 넓어지면서 압력이 낮아져 흡입력이 발생되고, 이 흡입력에 의해 상기 케이싱(10)의 윤활유가 윤활유안내관(65)을 통해 흡입되며, 이 윤활유는 상기 윤활유안내관(65)이 연결된 윤활유흡입공(111)을 통과하여 윤활유밸브(122)의 흡입측 개폐부(122a)를 열고 윤활유커버의 수평측 연통홈(121a)으로 흡입된다. 이 윤활유의 일부는 윤활유펌핑공(112)을 통해 윤활유실린더(62)로 유입된다.At this time, when the lubricating oil pumping unit (more specifically, the lubricating oil piston) 61 vibrates to the right side in FIG. 6, the pressure decreases while the front space (the left side space in FIG. 6) of the lubricating oil cylinder 62 becomes wider. The lubricating oil of the casing 10 is sucked through the lubricating oil guide tube 65 by the suction force, and the lubricating oil passes through the lubricating oil suction hole 111 to which the lubricating oil guide tube 65 is connected. The suction side opening part 122a of the 122 is opened and sucked into the horizontal communication groove 121a of the lubricating oil cover. A part of this lubricating oil flows into the lubricating oil cylinder 62 through the lubricating oil pumping hole 112.

다음, 윤활유펌핑부(61)가 도 6에서 좌측으로 진동을 하는 경우 윤활유실린더(62)의 전방측 공간이 좁아지면서 토출력을 발생시켜 윤활유실린더(62)로 유입된 윤활유는 윤활유펌핑공을 통해 수평측 연통홈(121a)으로 밀어내는 동시에 그 수평측 연통홈(121a)의 윤활유를 밀어 올려 윤활유가 수직측 연통홈(121b)으로 이동하였다가 윤활유밸브(122)의 토출측 개폐부(122b)를 밀면서 전방프레임(110)의 윤활유공급홈(114)을 거쳐 윤활유공급유로(113)로 안내된다. Next, when the lubricating oil pump 61 vibrates to the left side in FIG. 6, the front space of the lubricating oil cylinder 62 is narrowed to generate the output, so that the lubricating oil introduced into the lubricating oil cylinder 62 is passed through the lubricating oil pumping hole. While pushing to the horizontal communication groove 121a, the lubricant in the horizontal communication groove 121a is pushed up to move the lubricant to the vertical communication groove 121b, and then pushes the discharge opening / closing part 122b of the lubricating oil valve 122. The lubricating oil supply passage 113 is guided through the lubricating oil supply groove 114 of the front frame 110.

이렇게 윤활유공급유로로 이동하는 윤활유는 실린더와 피스톤 사이로 공급되어 윤활한 후 다시 케이싱으로 회수되는 일련의 과정을 반복한다. 이후, 윤활유펌핑부가 다시 도면의 좌측으로 진동하거나 정지하는 경우에는 윤활유공급유로로 공급되었던 윤활유가 유입된 방향의 반대방향으로 누설될 우려가 있으나, 이 누설되려는 윤활유와 윤활유밸브의 복원력에 의해 상기한 토출측 개폐부 윤활유커버의 수직측 연통홈을 차단함으로써 윤활유가 누설되는 것을 효과적으로 방지하여 압축기의 진동이나 재기동시 접동부에서의 윤활유 부족으로 인한 마모를 미연에 방지할 수 있다. The lubricating oil moving to the lubricating oil supply passage is supplied between the cylinder and the piston, lubricated, and then repeated a series of processes to be recovered to the casing. Subsequently, when the lubricating oil pumping part vibrates or stops to the left side of the drawing again, there is a possibility that the lubricating oil supplied to the lubricating oil supply flow path may leak in the opposite direction to the inflow direction. By blocking the vertical communication groove of the discharge side opening and closing part of the lubricating oil cover, the leakage of the lubricating oil can be effectively prevented, thereby preventing the abrasion due to the lack of lubricating oil in the sliding part during the vibration or the restart of the compressor.

본 발명에 의한 왕복동식 압축기의 윤활유 공급 장치는, 윤활유커버와 윤활유밸브로 윤활유조립체를 구성함으로써, 부품수를 줄여 생산원가를 절감할 수 있을 뿐만 아니라 조립공정을 간소화하여 조립오차로 인한 윤활유공급부족을 미연에 방지함과 아울러 실린더와 피스톤 사이에 윤활유를 원활하게 공급하여 압축기의 신뢰성을 높일 수 있다.In the lubricating oil supply device of the reciprocating compressor according to the present invention, the lubricating oil assembly is composed of the lubricating oil cover and the lubricating oil valve, thereby reducing the number of parts and reducing the production cost, and simplifying the assembling process so that the lubricating oil supply is insufficient due to the assembly error. In addition to preventing oil in advance, it is possible to smoothly supply lubricant between the cylinder and the piston to increase the reliability of the compressor.

Claims (3)

케이싱에 충전된 윤활유에 잠기도록 윤활유안내관이 연결되는 윤활유흡입공과, 그 윤활유흡입공에 일단이 연통되고 타단은 상기 윤활유안내관을 통해 케이싱의 윤활유를 펌핑하도록 윤활유펌핑부가 연결 설치되는 윤활유펌핑공과, 그 윤활유펌핑공에 연통되어 윤활유를 실린더와 피스톤 사이로 안내하도록 형성되는 윤활유공급유로를 구비하는 프레임;Lubricating oil suction hole to which the lubricant guide tube is connected so as to be immersed in the lubricant filled in the casing, and one end is in communication with the lubricant suction hole and the other end is connected to the lube oil pumping hole to connect the lubricating oil pumping part to pump the lubricant of the casing through the lubricant guide tube and A frame having a lubricating oil supply passage communicating with the lubricating oil pumping hole and configured to guide the lubricating oil between the cylinder and the piston; 상기 프레임의 윤활유흡입공과 윤활유펌핑공을 연통시키는 동시에 그 윤활유펌핑공을 윤활유공급유로에 연통시키도록 윤활유연통홈을 형성하는 윤활유커버; 및A lubricating oil cover which connects the lubricating oil suction hole and the lubricating oil pumping hole of the frame and forms a lubricating oil communication groove to communicate the lubricating oil pumping hole with the lubricating oil supply passage; And 상기 프레임과 윤활유커버 사이에 개재하여 상기 윤활유펌핑공을 개폐하는 흡입측 개폐부와 상기 윤활유커버의 윤활유연통홈을 개폐하도록 토출측 개폐부를 가지는 윤활유밸브;를 포함한 것을 특징으로 하는 왕복동식 압축기의 윤활유 공급 장치.Lubricating oil supply device of the reciprocating compressor comprising a; lubricating oil valve having a suction side opening and closing portion for opening and closing the lubricating oil pumping hole interposed between the frame and the lubricating oil cover and a discharge side opening and closing portion for opening and closing the lubricating oil communication groove of the lubricating oil cover; . 제1항에 있어서,The method of claim 1, 상기 윤활유공급유로의 입구단에는 소정량의 윤활유가 채워지도록 윤활유공급홈을 음형지게 형성하는 것을 특징으로 하는 왕복동식 압축기의 윤활유 공급 장치.Lubricating oil supply device of the reciprocating compressor, characterized in that the inlet end of the lubricating oil supply passage to form a negative supply of the lubricating oil supply groove so that a predetermined amount of lubricating oil is filled. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 윤활유흡입공은 그 중심을 윤활유펌핑공의 중심 보다는 높거나 같게 형성하는 것을 특징으로 하는 왕복동식 압축기의 윤활유 공급 장치.The lubricating oil suction hole is a lubricating oil supply device of the reciprocating compressor, characterized in that the center is formed to be equal to or higher than the center of the lubricating oil pumping hole.
KR1020050043267A 2005-05-23 2005-05-23 Device for supplying oil of reciprocating compressor KR100652598B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010026722A (en) * 1999-09-08 2001-04-06 구자홍 Apparatus for applying oil of linear compressor
KR20010081660A (en) * 2000-02-17 2001-08-29 구자홍 Apparatus for applying oil of linear compressor
KR20050069816A (en) * 2003-12-31 2005-07-05 엘지전자 주식회사 Apparatus for supplying oil of reciprocating compressor
KR20050080495A (en) * 2004-02-09 2005-08-12 엘지전자 주식회사 Oil valve assembly of reciprocating compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010026722A (en) * 1999-09-08 2001-04-06 구자홍 Apparatus for applying oil of linear compressor
KR20010081660A (en) * 2000-02-17 2001-08-29 구자홍 Apparatus for applying oil of linear compressor
KR20050069816A (en) * 2003-12-31 2005-07-05 엘지전자 주식회사 Apparatus for supplying oil of reciprocating compressor
KR20050080495A (en) * 2004-02-09 2005-08-12 엘지전자 주식회사 Oil valve assembly of reciprocating compressor

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