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KR20080055343A - Vacuum pump with vane damage prevention means when engine is running in reverse - Google Patents

Vacuum pump with vane damage prevention means when engine is running in reverse Download PDF

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Publication number
KR20080055343A
KR20080055343A KR1020060128562A KR20060128562A KR20080055343A KR 20080055343 A KR20080055343 A KR 20080055343A KR 1020060128562 A KR1020060128562 A KR 1020060128562A KR 20060128562 A KR20060128562 A KR 20060128562A KR 20080055343 A KR20080055343 A KR 20080055343A
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South Korea
Prior art keywords
oil
vacuum pump
vane
engine
air drain
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Ceased
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KR1020060128562A
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Korean (ko)
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서정술
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현대자동차주식회사
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Priority to KR1020060128562A priority Critical patent/KR20080055343A/en
Publication of KR20080055343A publication Critical patent/KR20080055343A/en
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    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • 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
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • 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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/28—Safety arrangements; Monitoring
    • 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
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • 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
    • F04C29/028—Means for improving or restricting lubricant flow
    • 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
    • F04C2210/00—Fluid
    • F04C2210/22—Fluid gaseous, i.e. compressible
    • 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
    • F04C2240/30—Casings or housings
    • 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
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • 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)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

본 발명은 베인 파손 방지수단이 구비된 진공펌프에 관한 것으로, 특히 펌프 하우징상에 엔진의 정회전시 오일이 배출되는 제1 의 오일 및 에어 드레인 홀과, 엔진의 역회전 발생시 오일이 배출되는 제2 의 오일 및 에어 드레인 홀을 별도로 구비함으로써, 엔진의 역회전 발생시 베인의 파손이 방지되도록 한 베인 파손 방지 수단이 구비된 진공펌프이다.The present invention relates to a vacuum pump having vane breakage preventing means, and more particularly, a first oil and air drain hole through which oil is discharged during forward rotation of the engine on a pump housing, and a second oil discharge when reverse rotation of the engine occurs. It is provided with a separate oil and air drain hole, the vacuum pump is provided with vane breakage preventing means to prevent vane breakage when the reverse rotation of the engine occurs.

Description

엔진의 역회전시 베인 파손 방지수단이 구비된 진공펌프{VACUUM PUMP HAVING THE DEVICE FOR PREVENTING COLLAPSE OF VANE}Vacuum pump equipped with vane breakage prevention means when the engine is running in the reverse rotation {VACUUM PUMP HAVING THE DEVICE FOR PREVENTING COLLAPSE OF VANE}

도 1 과 도 2 는 진공펌프에서의 베인 파손 현상을 도시한 도면,1 and 2 are views showing vane breakage phenomenon in the vacuum pump,

도 3a 와 도 3b 는 본 발명에 따른 베인 파손 방지수단이 구비된 진공펌프의 사시도임.3A and 3B are perspective views of a vacuum pump having vane breakage preventing means according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

10 : 펌프 하우징 11 : 오일공급용 관통공10 pump housing 11 through hole for oil supply

13 : 제1 오일 및 에어 드레인 홀 15 : 제2 오일 및 에어 드레인 홀13: 1st oil and air drain hole 15: 2nd oil and air drain hole

17 : 에어 흡입공17: air suction hole

본 발명은 베인 파손 방지수단이 구비된 진공펌프 관한 것으로, 특히 오일 및 에어의 드레인 홀을 복수개로 구비하여 엔진의 역회전시 베인 파손이 방지되도록 한 베인 파손 방지수단이 구비된 진공펌프에 관한 것이다.The present invention relates to a vacuum pump having vane breakage preventing means, and more particularly, to a vacuum pump having vane breakage preventing means provided with a plurality of oil and air drain holes to prevent vane breakage during reverse rotation of the engine. .

최근 들어 엔진 정지시 크랭크의 위치에 따라 크랭크가 역회전 함에 따라서 캠이 역회전하여 진공펌프가 역회전하는 현상이 일어나고 있다.Recently, as the crank rotates in reverse with the position of the crank when the engine stops, the cam rotates in reverse and the vacuum pump rotates in reverse.

종래에는 진공펌프가 알터네이터에 연결되어 있어서 진공펌프가 역회전 하는 일이 발생되지 않았지만, 최근에는 진공펌프가 캠 샤프트와 직결되면서 캠 샤프트의 역회전에 위한 진공펌프의 역회전으로 펌프가 파손되는 일이 발생하는 문제점이 있다.Conventionally, the vacuum pump is connected to the alternator so that the reverse rotation of the vacuum pump has not occurred, but recently the pump is damaged by the reverse rotation of the vacuum pump for reverse rotation of the cam shaft while the vacuum pump is directly connected to the cam shaft. There is a problem that occurs.

도 1 과 도 2 는 는 종래의 진공펌프에서의 베인 파손 현상을 도시한 도면으로, 1 and 2 are views illustrating vane breakage in a conventional vacuum pump,

도 1 은 통상적인 베인의 파손 형상을 나타낸 것으로, 진공펌프의 회전방향에 준한 베인의 파손 상태를 도시한 것으로, 베인(1)과 로터(3)가 서로 붙어 있는 상태를 나타내고 있다.Fig. 1 shows the vane breakage shape of a conventional vane, and shows the vane breakage state in accordance with the rotation direction of the vacuum pump, and shows the vane 1 and the rotor 3 stuck together.

또한, 도 2 는 베인 파손의 추정 형상을 도시한 것으로, 상기 도 1 에 도시된 통상적인 베인 파손시의 형상과 달리 베인(1)과 로터(3)가 떨어져 있으며(A 부위), 또한 베인이 역회전에 의한 1차 파손 이후 정회전 방향으로 재 회전하게 된다.In addition, Fig. 2 shows the estimated shape of vane breakage, which is different from the shape of the vane breakage shown in Fig. 1, wherein the vane 1 and the rotor 3 are separated from each other (part A). After the first breakage caused by the reverse rotation it will be rotated again in the forward direction.

일반적으로 종래의 진공펌프에 있어서, 펌프의 냉간시는 오일의 점도가 높아서 진공펌프 내측의 오일이 빠져 나가는데 많은 구동 토크가 발생한다. 이때 엔진의 역회전이 발생할 경우에는 진공펌프 내측의 오일이 미세 간극을 통하여 빠져 나가야 하지만, 냉간시는 점도가 높은 오일이 순간적으로 압축되면서 내부 간극으로 빠져 나가지 못하여 진공펌프 내측 베인 파손의 원인으로 작동한다.In general, in the conventional vacuum pump, when the pump is cold, the viscosity of the oil is high, so that a lot of driving torque occurs when the oil inside the vacuum pump is pulled out. At this time, when reverse rotation of the engine occurs, the oil inside the vacuum pump should escape through the fine gap, but during cold operation, the oil with high viscosity is momentarily compressed and does not escape into the internal gap, causing the vane to break inside the vacuum pump. do.

따라서 본 발명은 상기한 종래의 문제점을 해결하기 위한 것으로, 오일 및 에어 드레인 홀을 복수개로 형성하여 엔진의 역회전 발생시 베인의 파손이 방지되도록 한 베인 파손 방지 수단이 구비된 진공펌프를 제공하는 것을 목적으로 한다.Accordingly, the present invention is to solve the above-mentioned problems, to provide a vacuum pump having a vane breakage prevention means to prevent the vane breakage when a plurality of oil and air drain holes are formed to prevent the reverse rotation of the engine The purpose.

상기 목적을 달성하기 위한 본 발명의 베인 파손방지 수단이 구비된 역회전 진공펌프는, 일측에 오일 공급 관통공이 형성된 진공펌프 하우징과, 상기 펌프 하우징으 내측에 위치한 베인과, 상기 펌프 하우징의 일측에 엔진의 정회전시 오일 및 에어가 빠지는 제1 오일 및 에어 드레인 홀과, 상기 펌프 하우징의 일측에 마련된 에어 흡입구를 포함하는 구조로 이루어진 진공펌프에 있어서,The reverse rotation vacuum pump provided with vane breakage preventing means of the present invention for achieving the above object is a vacuum pump housing having an oil supply through hole formed on one side, a vane located inside the pump housing, and on one side of the pump housing. In the vacuum pump having a structure including a first oil and air drain hole that the oil and air is discharged during the forward rotation of the engine, and an air inlet provided on one side of the pump housing,

상기 진공펌프 하우징의 일측에 엔진의 역회전 발생시 오일 및 에어가 배출되는 제2 의 오일 및 에어 드레인 홀이 구비되어, 엔진의 역회전 발생시 베인의 파손이 방지되도록 한 것을 특징으로 한다.One side of the vacuum pump housing is provided with a second oil and air drain hole through which the oil and air is discharged when the reverse rotation of the engine occurs, it characterized in that the vane damage is prevented when the reverse rotation of the engine occurs.

상기 제2의 오일 및 에어 드레인 홀은 상기 제1의 오일 및 에어 드레인 홀보다 하부에 위치하도록 하는 것이 바람직하다.Preferably, the second oil and air drain holes are positioned below the first oil and air drain holes.

이하 첨부된 도면을 참조하여 본 발명에 따른 베인 파손 방지 수단이 구비된 진공펌프의 적합한 실시예에 대해 상세한 설명을 하기로 한다.Hereinafter, a preferred embodiment of a vacuum pump equipped with vane breakage prevention means according to the present invention with reference to the accompanying drawings will be described in detail.

도 3a 와 도 3b 는 본 발명에 따른 베인 파손방지 수단 이 구비된 역회전 방진공펌프의 구조를 도시한 도면으로,3a and 3b is a view showing the structure of a reverse rotation anti-dust vacuum pump equipped with vane breakage prevention means according to the present invention,

도 3b 는 상기 3a 의 진공펌프 배면측 구조를 도시한 도면이다.3B is a view showing the vacuum pump rear side structure of 3A.

도시된 바와 같이, 본 발명의 베인 파손방지 수단이 구비된 진공펌프는 일측에 오일 공급을 위한 관통공이 형성된 진공펌프 하우징(10)과, 상기 펌프 하우 징(10)의 내측에 위치한 베인(30)과, 상기 펌프 하우징(10)의 일측에 엔진의 정회전시 오일 및 에어가 배출되는 제1 오일 및 에어 드레인 홀(13)과, 상기 펌프 하우징(10)의 일측에 마련된 에어 흡입구(17)를 포함하는 일반적인 진공펌프 구조에 있어서, 상기 진공펌프 하우징(10)의 일측에 엔진의 역회전 발생시 오일 및 에어가 배출되는 제2 의 오일 및 에어 드레인 홀(15)을 별도로 구비하고 있다. As shown, the vacuum pump equipped with vane breakage preventing means of the present invention is a vacuum pump housing 10 is formed with a through hole for oil supply on one side, and the vane 30 located inside the pump housing 10 And a first oil and air drain hole 13 through which one side of the pump housing 10 discharges oil and air during forward rotation of the engine, and an air inlet 17 provided on one side of the pump housing 10. In a general vacuum pump structure, a second oil and air drain hole 15 through which oil and air are discharged when a reverse rotation of the engine is generated is provided on one side of the vacuum pump housing 10.

이때, 상기 제2의 오일 및 에어 드레인 홀(15)은 상기 제1의 오일 및 에어 드레인 홀(13)로부터 일정거리 이격된 위치, 예컨대, 펌프 하우징(10)상에서 상기 제1 의 오일 및 에어 드레인 홀(13)보다 더 하부로 내려온 위치에 형성되도록 하는 것이 바람직하다.In this case, the second oil and air drain holes 15 may be spaced apart from the first oil and air drain holes 13 by a predetermined distance, for example, on the pump housing 10. It is desirable to be formed at a position lowered lower than the hole 13.

따라서 상기한 구조의 본 발명의 베인 파손방지 수단이 구비된 역회전 방지를 진공펌프는 엔진의 회전이 정상일 경우는 베인 하우징의 상측에 구비된 오일 및 에어 드레인 홀을 통해 오일이 빠져 나가도록 구성되고, 엔진의 역회전에 의해 엔진의 회전방향이 반대가 될 경우, 역회전시 빠져 나가는 오일 및 에어 드레인 홀을 통하여 오일이 외부로 배출되도록 한 구조로 되어 있다.Therefore, the anti-rotational vacuum pump provided with the vane breakage preventing means of the present invention having the above-described structure is configured such that when the engine rotation is normal, the oil escapes through the oil and air drain holes provided at the upper side of the vane housing When the direction of rotation of the engine is reversed due to the reverse rotation of the engine, the oil is discharged to the outside through the oil and air drain holes that exit during the reverse rotation.

따라서 엔진의 역회전 발생시에는 별도의 구분된 오일 및 에어 드레인 홀이 구비되어 있음으로, 특히 엔진 냉간시 점도가 높아진 오일이 순간적으로 압축되면서 내부 간극으로 빠져 나가도록 함으로써, 베인의 파손이 방지된다.Therefore, when a reverse rotation of the engine occurs, separate oil and air drain holes are provided. In particular, when the engine is cold, the viscosity-high oil is momentarily compressed and escapes into the internal gap, thereby preventing vane breakage.

이상에서 설명한 바와 같이, 본 발명에 따른 역회전 방지를 위한 진공펌프 구조는 최근 진공펌프가 캠 샤프트와 직결되면서 캠 샤프트의 역회전에 따른 펌프 의 역회전 발생으로 펌프가 파손되는 것을 방지하는 효과를 발휘한다.As described above, the vacuum pump structure for preventing the reverse rotation according to the present invention has an effect of preventing the pump from being damaged by the reverse rotation of the pump according to the reverse rotation of the cam shaft while the vacuum pump is directly connected to the cam shaft. Exert.

Claims (2)

일측에 오일 공급 관통공이 형성된 진공펌프 하우징과, 상기 펌프 하우징으 내측에 위치한 베인과, 상기 펌프 하우징의 일측에 엔진의 정회전시 오일 및 에어가 빠지는 제1 오일 및 에어 드레인 홀과, 상기 펌프 하우징의 일측에 마련된 에어 흡입구를 포함하는 구조로 이루어진 진공펌프에 있어서,A vacuum pump housing having an oil supply through hole formed at one side thereof, a vane positioned inside the pump housing, a first oil and air drain hole through which oil and air are released during forward rotation of the engine at one side of the pump housing, and the pump housing In the vacuum pump having a structure including an air inlet provided on one side, 상기 진공펌프 하우징의 일측에 엔진의 역회전 발생시 오일 및 에어가 배출되는 제2 의 오일 및 에어 드레인 홀이 구비되어, 엔진의 역회전 발생시 베인의 파손이 방지되도록 한 것을 특징으로 하는 베인 파손 방지 수단이 구비된 진공펌프.A second oil and air drain hole is provided at one side of the vacuum pump housing to discharge oil and air when the engine rotates reversely, so that vane breakage is prevented when the engine rotates reversely. It is equipped with a vacuum pump. 제 1 항에 있어서,The method of claim 1, 상기 제2의 오일 및 에어 드레인 홀은 상기 제1의 오일 및 에어 드레인 홀보다 하부에 위치하도록 한 것을 특징으로 하는 베인 파손 방지 수단이 구비된 진공펌프.And the second oil and air drain holes are positioned below the first oil and air drain holes.
KR1020060128562A 2006-12-15 2006-12-15 Vacuum pump with vane damage prevention means when engine is running in reverse Ceased KR20080055343A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105492775A (en) * 2013-10-07 2016-04-13 三樱工业株式会社 Negative-pressure pump and cylinder head cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105492775A (en) * 2013-10-07 2016-04-13 三樱工业株式会社 Negative-pressure pump and cylinder head cover

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