KR20150003090U - Air compressor having construction for previnting oil leakage - Google Patents

Air compressor having construction for previnting oil leakage Download PDF

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Publication number
KR20150003090U
KR20150003090U KR2020140000849U KR20140000849U KR20150003090U KR 20150003090 U KR20150003090 U KR 20150003090U KR 2020140000849 U KR2020140000849 U KR 2020140000849U KR 20140000849 U KR20140000849 U KR 20140000849U KR 20150003090 U KR20150003090 U KR 20150003090U
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South Korea
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air
crankcase
air compressor
unit
present
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KR2020140000849U
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Korean (ko)
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강호철
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현대중공업 주식회사
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Priority to KR2020140000849U priority Critical patent/KR20150003090U/en
Publication of KR20150003090U publication Critical patent/KR20150003090U/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
    • F04B39/02—Lubrication
    • F04B39/0284—Constructional details, e.g. reservoirs in the casing
    • F04B39/0292—Lubrication of pistons or cylinders
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • 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
    • F04B39/0005—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 adaptations of 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
    • 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
    • F04B39/0094—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 crankshaft
    • 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
    • F04B39/122—Cylinder block
    • 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
    • F04B39/16—Filtration; Moisture separation
    • 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
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
    • 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
    • F05B2260/00—Function
    • F05B2260/60—Fluid transfer
    • 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

Abstract

본 고안은 윤활유의 누설이 방지된 공기압축기에 관한 것으로, 그 목적은 공기압축기의 실린더로 공급되는 에어를 크랭크 케이스에 설치된 에어벤트 밸브와 연결하여 크랭크 케이스 내부의 양압을 낮추고, 에어벤트 밸브를 통한 윤활유의 누설을 방지할 수 있는 윤활유의 누설이 방지된 공기압축기를 제공하는 것이다.
본 고안은 에어탱크내로 압축공기를 공급하여 저장하는 공기압축부; 공기압축부에 연결설치되어 압축동력을 전달하는 모터부; 공기압축부의 일측에 설치되어 모터부에 의해 구동되는 쿨링부를 포함하는 공기압축기에 있어서;
상기 공기압축부는 필터와 실린더 헤드 사이에 보조냉각라인의 일측단이 연결되고, 상기 보조냉각라인의 타측단이 크랭크 케이스에 연결설치된 에어벤트에 연결되어, 필터에서 실린더 헤드로 공급되는 공기가 에어벤트를 통해 크랭크 케이스내로 공급되어, 크랭크 케이스 내부의 온도 및 양압을 낮추어, 에어벤트를 통한 윤활유의 배출을 방지하도록 되어 있다. The present invention relates to an air compressor in which leakage of lubricating oil is prevented. The object of the present invention is to reduce the positive pressure inside the crankcase by connecting air supplied to the cylinder of the air compressor to an air vent valve installed in the crankcase, An object of the present invention is to provide an air compressor in which leakage of lubricating oil is prevented which can prevent leakage of lubricating oil.
The present invention relates to an air compressor comprising an air compressor for supplying compressed air into an air tank and storing the compressed air; A motor unit connected to the air compression unit to transmit compression power; An air compressor comprising: a cooling unit installed at one side of an air compression unit and driven by a motor unit;
The air compression unit is connected to one end of an auxiliary cooling line between the filter and the cylinder head, and the other end of the auxiliary cooling line is connected to an air vent connected to the crankcase, To lower the temperature and the positive pressure inside the crankcase to prevent the lubricant from being discharged through the air vent.

Description

윤활유의 누설이 방지된 공기압축기{Air compressor having construction for previnting oil leakage}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an air compressor for preventing leakage of a lubricating oil,

본 고안은 윤활유의 누설이 방지된 공기압축기에 관한 것으로, 필터부를 통해 실린더로 유입되는 에어를 크랭크 케이스에 연결설치된 에어벤트밸브로 공급하여, 크랭크 케이스 내부의 양압을 낮추고 윤활유의 누설을 방지할 수 있는 공기압축기에 관한 것이다.
The present invention relates to an air compressor in which leakage of lubricating oil is prevented and air introduced into a cylinder through a filter section is supplied to an air vent valve connected to the crankcase to lower the positive pressure inside the crankcase and prevent leakage of the lubricating oil Lt; / RTI >

일반적으로 공기압축기(Air compressor)라 함은 날개차나 로터의 회전운동 또는 피스톤의 왕복운동에 의해서 공기를 일정한 공간에 압축하여 보관하면서 필요할 때 마다 공기를 토출시키는 것으로, 압축공기를 저장할 수 있도록 하는 에어탱크가 구비되고 상기 에어탱크의 상부에는 압축펌프가 설치되며 압축펌프의 타측에는 압축동력을 제공하기 위한 모터가 설치되는 구성으로 이루어진다.Generally, an air compressor refers to an air compressor that compresses and stores air in a predetermined space by rotational motion of a vane or rotor or reciprocating motion of a piston, while discharging air whenever necessary, A tank is provided, a compression pump is installed on the upper part of the air tank, and a motor for providing compression power is installed on the other side of the compression pump.

이러한 공기압축기에 있어서 압축펌프를 구성하는 압축실린더는 복열(2열, 3열 등)로 설치될 수 있으며, 상기 복열 설치되는 압축실린더는 각각의 열마다 단독 또는 병립(2개)으로 설치될 수 있게 된다.In such an air compressor, the compression cylinder constituting the compression pump may be installed in a double row (two rows, three rows, etc.), and the double row compression cylinders may be installed independently or in two .

또한 상기 압축실린더는 공통적으로 피스톤의 반복적인 왕복운동에 따른 마찰로 인해 고온의 열이 발생하게 되고, 이를 해결하기 위한 방안으로 모터와 연결되는 압축펌프의 밸트풀리에 다수의 날개차를 형성하여 동력전달이라는 근본적인 역할을 수행함은 물론 이에 더하여 회전시 냉각풍을 생성하므로써 냉각휀의 역할을 겸할 수 있는 풀리휀의 형태로 구성하게 된다.In order to solve this problem, a plurality of vanes are formed in a belt pulley of a compression pump connected to a motor, so that the power In addition, it forms a pulley fan which can also serve as a cooling fan by generating cooling air during rotation.

토출행정 중 압축 공기가 분사되는 고압의 영향을 받아 토출포트를 통하여 외부로 누출되는 경우가 많이 발생되며,A large amount of leakage of the air through the discharge port due to the influence of the high pressure of the compressed air during the discharge stroke often occurs,

상기와 같은 공기압축기에는 다른 통상적인 액츄에이터와 마찬가지로 각 부품의 냉각, 윤활 및 마찰 방지 등의 기능을 하는 윤활유가 공급순환되고 있으나, 크랭크 케이스 내부의 양압의 증가로 인하여 에어벤트 밸브로 크랭크 케이스내 고압공기가 토출될 시, 에어벤트 밸브를 통해 윤활유가 함께 넘쳐나 누설되거나, 유증기 상태로 외부로 토출되는 현상이 발생되고 있으며, 이러한 누설 윤활유는 윤활유 펌프로 회귀하지 못하고 윤활유가 불필요한 외부 장비로 흘러 들어 효율을 떨어뜨리고 심한 경우에는 작동 장애를 가져오는 원인이 되기도 하며, 장비의 오염원으로 작용된다.As in the case of other conventional actuators, the above-described air compressor is supplied with lubricating oil for cooling, lubrication, and friction prevention. However, due to an increase in the positive pressure in the crankcase, the air pressure in the crankcase When the air is discharged, there is a phenomenon that the lubricant overflows through the air vent valve or is discharged to the outside as a vapor state. Such leakage lubricant can not be returned to the lubricant pump and the lubricant flows to the unnecessary external equipment, In severe cases, it may cause malfunctions and may be a source of contamination of equipment.

또한, 종래 공기압축기는 풀리휀에 의해 외부에서 공냉방식으로 냉각하도록 되어 있어, 크랭크 케이스 내부의 온도가 쉽게 상승하게 되며, 이로 인해 윤활유의 소비가 증가되는 등 여러가지 문제점이 있었다.
In addition, the conventional air compressor is cooled by a pulley fan from the outside in an air-cooling manner, so that the temperature inside the crankcase easily rises, resulting in increased consumption of lubricating oil.

공개특허공보 공개번호 10-2009-0061109(2009.06.16)Published Patent Publication No. 10-2009-0061109 (June 16, 2009)

본 고안의 목적은 공기압축기의 실린더로 공급되는 에어를 크랭크 케이스에 설치된 에어벤트 밸브와 연결하여 크랭크 케이스 내부의 양압을 낮추고, 에어벤트 밸브를 통한 윤활유의 누설을 방지할 수 있는 윤활유의 누설이 방지된 공기압축기를 제공하는 것이다.
The purpose of the present invention is to reduce the positive pressure inside the crankcase by connecting the air supplied to the cylinder of the air compressor to the air vent valve installed in the crankcase and to prevent the leakage of the lubricating oil through the air vent valve To provide an air compressor.

본 고안은 에어탱크내로 압축공기를 공급하여 저장하는 공기압축부; 공기압축부에 연결설치되어 압축동력을 전달하는 모터부; 공기압축부의 일측에 설치되어 모터부에 의해 구동되는 쿨링부를 포함하는 공기압축기에 있어서;The present invention relates to an air compressor comprising an air compressor for supplying compressed air into an air tank and storing the compressed air; A motor unit connected to the air compression unit to transmit compression power; An air compressor comprising: a cooling unit installed at one side of an air compression unit and driven by a motor unit;

상기 공기압축부는 필터와 실린더 헤드 사이에 보조냉각라인의 일측단이 연결되고, 상기 보조냉각라인의 타측단이 크랭크 케이스에 연결설치된 에어벤트에 연결되어, 필터에서 실린더 헤드로 공급되는 공기가 에어벤트를 통해 크랭크 케이스내로 공급되어, 크랭크 케이스 내부의 온도 및 양압을 낮추어, 에어벤트를 통한 윤활유의 배출을 방지하도록 되어 있다.
The air compression unit is connected to one end of an auxiliary cooling line between the filter and the cylinder head, and the other end of the auxiliary cooling line is connected to an air vent connected to the crankcase, To lower the temperature and the positive pressure inside the crankcase to prevent the lubricant from being discharged through the air vent.

이와 같이, 본 고안은 크랭크 케이스에 연결설치된 에어벤트내로 필터링된 외부공기를 직접 공급하도록 되어 있어, 외부에서 크랭크 케이스를 냉각하던 간접 공냉방식을 직접 공냉방식으로 변경할 수 있으며, 이를 통해 크랭크 케이스내 냉각효율을 향상시킬 수 있다. As described above, the present invention directly supplies the outside air filtered into the air vent connected to the crankcase, so that the indirect air cooling method in which the crank case is cooled from the outside can be directly changed to the air cooling method, The efficiency can be improved.

본 고안은 직접냉각방식에 의해 크랭크 케이스내 온도 및 양압이 낮아지므로, 에어벤트를 통한 압축공기의 배출시, 유증기 및 윤활유가 함께 배출되지 않게 되며, 이를 통해 주위환경을 청결하게 유지할 수 있고, 윤활유의 소모량을 절감할 수 있는 등 많은 효과가 있다.
In the present invention, since the temperature and the positive pressure in the crankcase are lowered by the direct cooling method, when the compressed air is discharged through the air vent, the vapor and the lubricant are not discharged together, thereby keeping the environment clean. And it is possible to reduce the consumption amount of the battery.

도 1 은 본 고안에 따른 구성을 보인 예시도
도 2 는 본 고안에 따른 공기압축부의 간략구성을 보인 예시도
도 3 은 본 고안에 따른 전체 구성을 보인 예시도Fig. 1 is an example showing a configuration according to the present invention
FIG. 2 is an exemplary view showing a simplified configuration of the air compression unit according to the present invention. FIG.
Fig. 3 is an example showing the overall configuration according to the present invention

도 1 은 본 고안에 따른 구성을 보인 예시도를, 도 2 는 본 고안에 따른 공기압축부의 간략구성을 보인 예시도를, 도 3 은 본 고안에 따른 전체 구성을 보인 예시도를 도시한 것으로, FIG. 1 is an exemplary view showing a configuration according to the present invention, FIG. 2 is an exemplary view showing a simplified configuration of an air compression unit according to the present invention, and FIG. 3 is an exemplary view showing an overall configuration according to the present invention,

본 고안에 따른 공기압축장치(100)는 에어탱크내로 압축공기를 공급하여 저장하는 공기압축부(20); 공기압축부에 연결설치되어 압축동력을 전달하는 모터부(30); 공기압축부의 일측에 설치되어 모터부에 의해 구동되는 쿨링부(40)를 포함하여 구성되되,An air compression apparatus (100) according to the present invention includes an air compression unit (20) for supplying compressed air into an air tank and storing the compressed air; A motor unit 30 connected to the air compressing unit and transmitting compression power; And a cooling unit 40 installed at one side of the air compression unit and driven by the motor unit,

상기 공기압축부(20)는 필터(21)와 실린더 헤드(22) 사이에 보조냉각라인(50)의 일측단이 연결되고, 상기 보조냉각라인(50)의 타측단이 크랭크 케이스(23)에 연결설치된 에어벤트(24)에 연결되어, 필터부(21)에서 실린더헤드(22)로 공급되는 공기가 에어벤트(24)를 통해 크랭크 케이스(23)내로 공급되도록 되어 있다.
One end of the auxiliary cooling line 50 is connected between the filter 21 and the cylinder head 22 and the other end of the auxiliary cooling line 50 is connected to the crankcase 23 So that the air supplied from the filter unit 21 to the cylinder head 22 is supplied into the crankcase 23 through the air vent 24. [

상기 공기압축부(20)는 모터부(30)로부터 구동력을 전달받아, 압축공기를 생성하는 것으로, 모터부(30)의 구동력을 전달받는 크랭크축(27)이 회전가능하도록 내부에 설치되는 크랭크 케이스(23)와, 상기 크랭크축(27)과 커넥팅로드(28)에 의해 연결되어 승하강되는 피스톤(29)이 내장된 실린더(25)와, 상기 실린더(25)에 연결설치되는 실린더헤드(22)와, 상기 실린더헤드(22)에 연결설치되는 필터부(21)와, 상기 필터부(21)와 실린더헤드(22) 사이에 일측이 연결되고 타측이 크랭크 케이스(23)의 에어벤트(24)에 연결설치되는 보조냉각라인(50)을 포함한다.
The air compressing unit 20 receives the driving force from the motor unit 30 and generates compressed air. The air compressing unit 20 includes a crankshaft 27 installed inside the crankshaft 27 to rotate the crankshaft 27 receiving the driving force of the motor unit 30, A cylinder 25 having a case 23 and a piston 29 which is connected to the crankshaft 27 by a connecting rod 28 so as to move up and down and a cylinder head 25 connected to the cylinder 25 The filter unit 21 is connected to the cylinder head 22 and has one side connected between the filter unit 21 and the cylinder head 22 and the other side connected to the air vent of the crankcase 23 24). ≪ / RTI >

상기와 같이 구성된 공기압축부(20)는 필터부(21)에 의해 외부공기가 필터링 된 후, 실린더헤드(22)를 통해 실린더(25)내로 흡입되고, 모터부(30)의 구동력에 의해 크랭크축이 작동되어 실린더(25)내에서 피스톤이 승하강되어 실린더(25)내 공기를 압축하여 토출시키게 된다.
The air compressor 20 constructed as above is sucked into the cylinder 25 through the cylinder head 22 after the outside air is filtered by the filter unit 21 and is then sucked into the cylinder 25 by the driving force of the motor unit 30, The shaft is operated and the piston moves up and down in the cylinder 25 to compress and discharge the air in the cylinder 25. [

상기 크랭크 케이스(23)의 상부에는 크랭크 케이스(23)내의 압축공기를 외부로 배출시키기 위한 에어벤트(24)가 설치되어 있으며, 상기 에어벤트(24)는 크랭크축에 의한 피스톤의 구동에 의해 크랭크 케이스내에 양압(크랭크 케이스내의 공기가 일정이상의 압력으로 흐름이 발생)이 발생될 경우, 이를 외부로 배출하여 크랭크 케이스내 온도를 낮추고 이를 통해 크랭크축의 작용을 원활하게 하기 위한 것으로, 내부에 체크밸브가 더 설치되어 있다.
An air vent 24 for discharging the compressed air in the crankcase 23 to the outside is provided on the upper portion of the crankcase 23. The air vent 24 is driven by the piston by the crankshaft, In order to smooth the action of the crankshaft by lowering the temperature in the crankcase by discharging it to the outside when a positive pressure is generated in the case (the air in the crankcase generates a flow with a pressure equal to or higher than a certain level), a check valve It is installed more.

상기 보조냉각라인(50)은 에어벤트(24)를 통해 양압이 형성된 크랭크 케이스(23)내로 필터링된 공기를 직접 공급하여 크랭크 케이스(23)내 온도상승을 방지하는 것으로, 일측단이 필터부(21)와 실린더헤드(22) 사이에 위치하도록 즉, 필터부(21)와 크랭크 케이스(23)를 연결하는 연결부위(26)에 연결설치되고, 타측단이 에어벤트(24)에 직접적으로 연결설치된다.
The auxiliary cooling line 50 directly supplies the filtered air into the crankcase 23 formed with positive pressure through the air vent 24 to prevent a temperature rise in the crankcase 23, 21 and the cylinder head 22, that is, the connecting portion 26 connecting the filter portion 21 and the crankcase 23, and the other end is directly connected to the air vent 24 Respectively.

상기와 같은 보조냉각라인(50)은 공기압축부(20)의 작동에 의해 크랭크 케이스(23)내에 양압이 발생되어, 에어벤트(24)를 통해 크랭크 케이스(23)내 공기가 외부로 배출될 시, 크랭크 케이스(23)내로 필터링된 외부공기를 공급하여, 크랭크 케이스(23) 내부의 양압을 낮추게 되며, 이와 같은 작용에 의해 크랭크 케이스(23)내를 비산하는 윤활유가 공기와 함께 에어벤트를 통해 외부로 배출되는 것을 방지하게 된다. The auxiliary cooling line 50 generates positive pressure in the crankcase 23 by the operation of the air compressor 20 so that air in the crankcase 23 is discharged to the outside through the air vent 24 The positive pressure inside the crankcase 23 is lowered by supplying the outside air filtered into the crankcase 23 and the lubricating oil scattering in the crankcase 23 by this action acts as an air vent And is prevented from being discharged to the outside.

즉, 본 고안에 따른 보조냉각라인(50)은 크랭크 케이스(23)내로 직접 필터링된 공기를 공급하여, 크랭크 케이스(23) 내부의 양압을 낮추어 에어벤트(24)를 통한 윤활유(유증기)의 배출을 차단하므로, 온도 상승에 따른 윤활유 소비량을 절감할 수 있다.
That is, the auxiliary cooling line 50 according to the present invention supplies the air directly filtered into the crankcase 23 to lower the positive pressure inside the crankcase 23 to discharge the lubricating oil (vapor) through the air vent 24 It is possible to reduce the amount of lubricating oil consumption due to the temperature rise.

특히, 본 고안에 따른 보조냉각라인의 설치전후에 대하여, 실험한 결과, 크랭크 케이스 내부의 온도가 40℃일 때, 시간당 윤활유가 약 4ｇ 정도가 소비되었으나, 본 고안에 따른 보조냉각라인의 적용후, 크랭크 케이스 내부의 온도가 20℃로 낮추어질 뿐 아니라, 시간당 윤활유의 소비량이 약 2ｇ 정도로 윤활유의 소비량이 현저히 감소되었음을 알 수 있었다.
In particular, when the temperature inside the crankcase was 40 ° C., about 4 g of lubricating oil was consumed per hour before and after the installation of the auxiliary cooling line according to the present invention. However, after the application of the auxiliary cooling line according to the present invention , The temperature inside the crankcase was lowered to 20 ° C, and the amount of lubricating oil consumption was remarkably reduced to about 2 g per hour.

본 고안은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 고안의 요지를 벗어남이 없이 당해 고안이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위내에 있게 된다.
It is to be understood that the present invention is not limited to the specific preferred embodiments described above and that various modifications can be made by those skilled in the art without departing from the scope of the present invention, Of course, such modifications are within the scope of the claims.

(20) : 공기압축부 (21) : 필터부
(22) : 실린더헤드 (23) : 크랭크 케이스
(24) : 에어벤트 (25) : 실린더
(26) : 연결부위 (27) : 크랭크축
(28) : 커넥팅로드 (29) : 피스톤
(30) : 모터부 (40) : 쿨링부
(50) : 보조냉각라인 (100) : 공기압축기(20): air compression section (21): filter section
(22): cylinder head (23): crank case
(24): Air vent (25): Cylinder
(26): connecting portion (27): crankshaft
(28): connecting rod (29): piston
(30): motor section (40): cooling section
(50): auxiliary cooling line (100): air compressor

Claims (1)

에어탱크내로 압축공기를 공급하여 저장하는 공기압축부; 공기압축부에 연결설치되어 압축동력을 전달하는 모터부; 공기압축부의 일측에 설치되어 모터부에 의해 구동되는 쿨링부를 포함하는 공기압축기에 있어서;
상기 공기압축부는 필터와 실린더 헤드 사이에 보조냉각라인의 일측단이 연결되고, 상기 보조냉각라인의 타측단이 크랭크 케이스에 연결설치된 에어벤트에 연결되어, 필터에서 실린더 헤드로 공급되는 공기가 에어벤트를 통해 크랭크 케이스내로 공급되도록 한 것을 특징으로 하는 윤활유의 누설이 방지된 공기압축기.

An air compression unit for supplying and storing compressed air into the air tank; A motor unit connected to the air compression unit to transmit compression power; An air compressor comprising: a cooling unit installed at one side of an air compression unit and driven by a motor unit;
The air compression unit is connected to one end of an auxiliary cooling line between the filter and the cylinder head, and the other end of the auxiliary cooling line is connected to an air vent connected to the crankcase, Wherein the lubricating oil is supplied into the crankcase through the oil passage.

KR2020140000849U 2014-02-06 2014-02-06 Air compressor having construction for previnting oil leakage KR20150003090U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102033502B1 (en) 2019-05-10 2019-10-17 인광전력 주식회사 Air compressor for gas insulated switchgear with improved use life of lubricating oil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102033502B1 (en) 2019-05-10 2019-10-17 인광전력 주식회사 Air compressor for gas insulated switchgear with improved use life of lubricating oil

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