KR100254993B1 - Lubrication unit of air compressor - Google Patents

Lubrication unit of air compressor Download PDF

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Publication number
KR100254993B1
KR100254993B1 KR1019970079426A KR19970079426A KR100254993B1 KR 100254993 B1 KR100254993 B1 KR 100254993B1 KR 1019970079426 A KR1019970079426 A KR 1019970079426A KR 19970079426 A KR19970079426 A KR 19970079426A KR 100254993 B1 KR100254993 B1 KR 100254993B1
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KR
South Korea
Prior art keywords
swash plate
compressor
refrigerant
air conditioner
lubrication
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KR1019970079426A
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Korean (ko)
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KR19990059229A (en
Inventor
박경태
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정몽규
현대자동차주식회사
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Priority to KR1019970079426A priority Critical patent/KR100254993B1/en
Publication of KR19990059229A publication Critical patent/KR19990059229A/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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/109—Lubrication
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0878—Pistons
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1054—Actuating elements
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

PURPOSE: A lubrication apparatus for air conditioner compressor is provided to achieve an enhanced durability of the compressor by effectively lubricating and cooling both surfaces of the swash plate. CONSTITUTION: An air conditioner compressor includes a rotation shaft(10) equipped with a swash plate(15), and a piston moving forward and backward by the swash plate. A lubrication for such a compressor, comprises a refrigerant/lubrication oil passageway(12) which is formed, in lengthwise direction of the rotation shaft, up to the front of the swash plate, and has an inlet port(11) formed at an end of the refrigerant/lubrication oil inlet passageway; and a plurality of nozzles(17) communicated to the refrigerant/lubrication oil passage and which are formed along the circumferential direction of a boss section(16).

Description

에어컨 컴프레서의 윤활장치Lubricator of Air Conditioning Compressor

본 발명은 자동차 에어컨 시스템에 사용되는 컴프레서에 관한 것이며, 더욱 상세하게는 사판식 컴프레서의 사판과 피스톤간의 윤활장치에 관한 것이다.The present invention relates to a compressor for use in an automotive air conditioning system, and more particularly, to a lubrication device between a swash plate and a piston of a swash plate type compressor.

도 1에 일반적인 자동차용 에어컨의 구성이 도시되어 있다. 도시된 바와 같이, 에어컨은 증발기(1)와 압축기인 컴프레서(2), 응축기인 컨덴서(3), 리시버드라이어(4) 및 팽창밸브(5)로 구성되어 있다.1 shows a configuration of a general automotive air conditioner. As shown, the air conditioner is composed of an evaporator 1 and a compressor 2 as a compressor, a condenser 3 as a condenser, a receiver drier 4 and an expansion valve 5.

자동차 실내를 냉방하는 증발기(1)에는 액상의 저온의 냉매가 유입되어 증발기(1)를 통과하며 냉매가 증발하면서 실내의 열을 흡수하여 기화된 후 컴프레서(2)에서 고온, 고압으로 압축되고, 컨덴서(3)에서 액화되어 리시버 드라이어(4)에서 응축이 불충분한 기상의 냉매를 제거하고 액상의 저온, 고압의 냉매를 팽창밸브(5)를 통해 팽창시켜 증발기(1)로 유입시키므로써 증발을 통해 실내의 온도를 낮추게 된다. 이어 고온의 기화된 냉매는 다시 컴프레서(2)로 순환하여 냉방싸이클을 구성하게 된다.The low temperature refrigerant in the liquid flows into the evaporator 1 for cooling the vehicle interior, passes through the evaporator 1, the refrigerant evaporates by absorbing heat from the room while evaporating, and is compressed to high temperature and high pressure in the compressor 2, By removing the gaseous refrigerant having insufficient condensation in the condenser (3) and the receiver dryer (4) and expanding the liquid low temperature and high pressure refrigerant through the expansion valve (5), the evaporator (1) is introduced into the evaporator (1). This will lower the room temperature. The high temperature vaporized refrigerant then circulates back to the compressor 2 to form a cooling cycle.

컴프레서는 냉매를 압축하는 피스톤의 구동방식에 따라, 크랭크식과 사판식으로 구분되며, 사판식 컴프레서의 구성이 도 1에 도시되어 있다.The compressor is classified into a crank type and a swash plate type according to a driving method of a piston for compressing a refrigerant, and the configuration of the swash plate type compressor is shown in FIG. 1.

도시된 바와 같이, 사판식 컴프레서는 피스톤(1)을 회전축(2)에 연결된 사판(3)을 회전시켜 전,후진 시키므로써 흡입밸브(4)를 통해 유입된 냉매를 방열이 쉬운 고온, 고압의 냉매로 압축하게 된다. 컴프레서의 회전축(2)은 엔진의 크랭크풀리와 맞물린 컴프레서 구동용 풀리(5)에 의해 회전하게 되며, 클러치(6)가 회전축(2)과 풀리(5)의 설치되어 에어컨 작동시에만 컴프레서와 엔진의 크랭크풀리를 연결하게 된다.As shown, the swash plate compressor rotates the swash plate (3) connected to the rotary shaft (2) to move forward and backward, so that the refrigerant introduced through the suction valve (4) can be easily discharged. Compressed to the refrigerant. The rotary shaft 2 of the compressor is rotated by the compressor driving pulley 5 engaged with the crank pulley of the engine, and the clutch 6 is installed only when the rotary shaft 2 and the pulley 5 are installed to operate the air conditioner and the engine. To connect the crank pulley.

한편, 피스톤(1)을 구동하기 위한 사판(3)은 고속으로 회전하므로 피스톤(1)과 사판(3) 사이의 마찰이 크므로 마찰부에는 경질의 슈(7)가 설치된다. 또한, 마찰부의 윤활 및 냉각을 위해 냉매의 통로를 통해 윤활유를 공급하여 사판(3)을 윤활하는 방식이 사용된다.On the other hand, since the swash plate 3 for driving the piston 1 rotates at a high speed, the friction between the piston 1 and the swash plate 3 is large, so that a hard shoe 7 is provided in the friction portion. In addition, a method of lubricating the swash plate 3 by supplying lubricating oil through a passage of the refrigerant for lubrication and cooling of the friction part is used.

그러나, 컴프레서의 몸체에 형성된 냉매의 유입구(4) 및 유입통로(8)를 통해 공급되는 윤활유는 유입통로의 구조상 사판(3)의 배면(A)의 윤활은 효과적으로 할 수 있으나, 사판(3)의 정면(B)으로 공급되는 윤활유가 적으므로 거의 윤활이 이루어 지지 않아 사판(3)의 정면(B)과 피스톤(1)의 슈(7) 사이의 마찰로 발생하는 과도한 열로 사판(3)과 슈(7)의 마모가 커져 컴프레서의 내구성을 저하시키는 중요한 원인이 되고 있다.However, the lubricating oil supplied through the inlet 4 and the inlet passage 8 of the refrigerant formed in the body of the compressor can be effectively lubricated on the back surface A of the swash plate 3 due to the structure of the inlet passage. Since the lubricating oil supplied to the front surface B of the is almost not lubricated, excessive heat generated by friction between the front surface B of the swash plate 3 and the shoe 7 of the piston 1 and the swash plate 3 and Wear of the shoe 7 becomes large, and it is an important cause which reduces durability of a compressor.

따라서, 본 고안의 목적은 사판의 윤활을 원활히 할 수 있는 에어컨 컴프레서의 윤활장치를 제공하는 것이다.Accordingly, an object of the present invention is to provide a lubrication device for an air conditioner compressor that can smoothly lubricate the swash plate.

도 1은 종래의 사판식 컴프레서의 단면도이다.1 is a cross-sectional view of a conventional swash plate compressor.

도 2는 본 발명에 따른 윤활장치를 구비한 컴프레서의 단면도이다.2 is a cross-sectional view of a compressor with a lubrication device according to the present invention.

도 3은 본 발명에 따른 에어컨 컴프레서의 윤활장치가 설치된 컴프레서 회전축의 단면도이다.3 is a cross-sectional view of a compressor rotating shaft provided with a lubrication device for an air conditioner compressor according to the present invention.

도 4는 본 발명에 따른 에어컨 컴프레서의 윤활장치가 설치된 컴프레서 회전축의 사시도이다.4 is a perspective view of a compressor rotating shaft provided with a lubrication device of an air conditioner compressor according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1 : 피스톤 7 : 슈1: piston 7: shoe

10 : 회전축 11 : 유입구10: axis of rotation 11: inlet

12 : 유입통로 15 : 사판12: inflow passage 15: swash plate

16 : 보스부 17 : 분사공16: boss portion 17: injection hole

상술한 목적을 달성하기 위해, 본 발명에 따른 에어컨 컴프레서의 윤활장치는 사판이 설치된 회전축, 사판에 의해 전후진 하는 피스톤을 포함하는 자동차 에어컨용 컴프레서에 있어서, 회전축의 종단에 형성된 유입구; 회전축의 길이방향을 따라 사판의 배면까지 연장형성된 유입통로; 및 유입통로로부터 사판의 보스부의 원주방향을 따라 연장형성된 다수의 분사구를 포함하여 사판의 전후에서 윤활유와 냉매를 분사하므로써 사판의 양면을 윤활 및 냉각하므로써 사판과 피스톤의 마찰에 따른 마모를 억제하여 컴프레서의 내구성을 향상시키는 것을 특징으로 한다.In order to achieve the above object, the lubrication apparatus of the air conditioner compressor according to the present invention, a compressor for a car air conditioner comprising a rotary shaft, the piston is moved forward and backward by the swash plate, the inlet formed at the end of the rotary shaft; An inflow passage extending along the longitudinal direction of the rotating shaft to the rear surface of the swash plate; And a plurality of injection holes extending along the circumferential direction of the boss portion of the swash plate from the inflow passage, so that both sides of the swash plate are lubricated and cooled by injecting lubricating oil and refrigerant before and after the swash plate, thereby suppressing abrasion due to friction between the swash plate and the piston. It is characterized by improving the durability of.

이하, 첨부도면을 참조하여 본 발명에 따른 에어컨 컴프레서의 윤활장치의 일 실시예에 대해 설명한다.Hereinafter, an embodiment of a lubricator of an air conditioner compressor according to the present invention will be described with reference to the accompanying drawings.

도 2에 본 발명에 따른 윤활장치를 구비한 에어컨 컴프레서의 단면도가 도시되어 있다. 설명의 편의상 종래기술과 동일한 부분에 대해서는 동일한 부호를 사용하며 그에 대한 설명은 생략한다.2 shows a cross-sectional view of an air conditioner compressor with a lubrication device according to the invention. For the convenience of description, the same reference numerals are used for the same parts as in the prior art, and description thereof will be omitted.

도시된 바와 같이, 본 발명에 따른 에어컨 컴프레서의 윤활장치는 종래의 냉매 및 윤활유의 유입구(11)를 회전축(10)에 형성한 것이다.As shown, the lubrication apparatus of the air conditioner compressor according to the present invention is a conventional inlet 11 of the refrigerant and lubricating oil is formed on the rotary shaft (10).

도 3와 도 4에 본 발명에 따른 회전축의 구성이 도시되어 있다.3 and 4 show the configuration of the rotating shaft according to the invention.

도시된 바와 같이, 본 발명에 따른 컴프레서의 회전축(10)은 종단에 유입구(11)가 형성되어 사판(15)의 전방까지 축의 길이방향을 따라 냉매와 윤할유의 유입통로(12)를 형성하고, 사판(15)의 전,후에 형성되는 보스부(16)의 원주방향을 따라 유입통로(12)와 연통된 다수의 분사공(17)을 형성한 것이다.As shown, the rotary shaft 10 of the compressor according to the present invention has an inlet 11 is formed at the end to form the inflow passage 12 of the refrigerant and lubricant oil along the longitudinal direction of the shaft to the front of the swash plate 15, A plurality of injection holes 17 are formed in communication with the inflow passage 12 along the circumferential direction of the boss portion 16 formed before and after the swash plate 15.

따라서, 회전축(10)을 통해 공급되는 윤활유와 냉매가 사판(15)의 전,후에 형성된 보스부(16)의 원주방향을 따라 형성된 다수의 분사공(17)을 통해 사판(10)의 정면과 배면에 고르게 분사되므로 사판(15)과 피스톤(1)의 윤활이 원활해 지며, 냉매를 사판에 직접 분출하므로써 사판(15)과 피스톤(1)의 슈(7)사이에서 발생하는 고열을 냉각할 수 있게 된다.Therefore, the lubricating oil and the coolant supplied through the rotating shaft 10 and the front of the swash plate 10 through a plurality of injection holes 17 formed along the circumferential direction of the boss portion 16 formed before and after the swash plate 15. Since it is evenly sprayed on the rear surface, the swash plate 15 and the piston 1 can be smoothly lubricated, and the high temperature generated between the swash plate 15 and the shoe 1 of the piston 1 can be cooled by directly ejecting the refrigerant to the swash plate. It becomes possible.

상술한 바와 같이 구성된 본 발명에 따른 에어컨 컴프레서의 윤활장치를 사용하므로써, 종래의 방법으로는 윤활이 어려운 사판의 양면을 효과적으로 윤활 및 냉각하므로써 컴프레서의 내구성을 향상시킬 수 있게 된다.By using the lubrication apparatus of the air conditioner compressor according to the present invention configured as described above, it is possible to improve the durability of the compressor by lubricating and cooling both sides of the swash plate which is difficult to lubricate by the conventional method.

이상에서 본 발명은 실시예를 통해 상세히 설명하였으나 본 발명은 이에 한정되는 것은 아니며 당해분야의 통상의 지식을 가진자라면 본 발명의 기술적 사상을 바탕으로 다양한 변형이나 수정이 가능할 것이며, 그러한 변경이나 수정은 다음의 청구범위에 포함되는 것이다.The present invention has been described in detail through the embodiments, but the present invention is not limited thereto, and those skilled in the art may make various changes or modifications based on the technical idea of the present invention. Is included in the following claims.

Claims (1)

사판이 설치된 회전축, 사판에 의해 전후진 하는 피스톤을 포함하는 자동차 에어컨용 컴프레서에 있어서, 상기 회전축의 종단에 형성된 유입구; 회전축의 길이방향을 따라 사판의 배면까지 연장형성된 유입통로; 및 유입통로로부터 사판의 보스부의 원주방향을 따라 연장형성된 다수의 분사구를 포함하는 것을 특징으로 하는 에어컨 컴프레서의 윤활장치.A compressor for an automotive air conditioner comprising a rotary shaft provided with a swash plate, and a piston moving forward and backward by a swash plate, the compressor comprising: an inlet formed at an end of the rotary shaft; An inflow passage extending along the longitudinal direction of the rotating shaft to the rear surface of the swash plate; And a plurality of injection holes extending along the circumferential direction of the boss portion of the swash plate from the inflow passage.
KR1019970079426A 1997-12-30 1997-12-30 Lubrication unit of air compressor KR100254993B1 (en)

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KR1019970079426A KR100254993B1 (en) 1997-12-30 1997-12-30 Lubrication unit of air compressor

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KR19990059229A KR19990059229A (en) 1999-07-26
KR100254993B1 true KR100254993B1 (en) 2000-05-01

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