KR101126231B1 - Structure of nozzle for vacuum pump - Google Patents

Structure of nozzle for vacuum pump Download PDF

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Publication number
KR101126231B1
KR101126231B1 KR1020050121416A KR20050121416A KR101126231B1 KR 101126231 B1 KR101126231 B1 KR 101126231B1 KR 1020050121416 A KR1020050121416 A KR 1020050121416A KR 20050121416 A KR20050121416 A KR 20050121416A KR 101126231 B1 KR101126231 B1 KR 101126231B1
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South Korea
Prior art keywords
vacuum pump
oil
pressure
nozzle
plunger
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KR1020050121416A
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Korean (ko)
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KR20070061719A (en
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이덕우
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현대자동차주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
    • 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
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

진공펌프 노즐 구조가 개시된다. 개시된 진공펌프 노즐 구조는, 부스터 내의 압력을 진공압으로 만들기 위해 오일이 연속적으로 유입되게 구비된 오일 공급용 노즐부와; 상기 노즐부에 설치되어 오일의 압력으로 압축 스트로크가 발생되게 작동하는 플런저와; 상기 플런저 내에 설치되어 오일의 압력에 따라 압축 및 팽창 작동하는 스프링;을 포함하는 것을 그 특징으로 한다. A vacuum pump nozzle structure is disclosed. The disclosed vacuum pump nozzle structure includes: an oil supply nozzle portion provided to continuously flow oil to make a pressure in the booster into a vacuum pressure; A plunger installed in the nozzle part and operable to generate a compression stroke under the pressure of oil; It is characterized in that it comprises a; installed in the plunger is a spring for compression and expansion operation in accordance with the pressure of the oil.

본 발명에 따르면, 진공펌프 하우징 내로 오일의 유입량을 적게 되도록 함으로써, 진공펌프의 구동 토크를 감소시키며, 마찰 손실을 저감시키게 됨으로써, 진공펌프의 구동력을 감소시킬 수 있고, 연비를 개선할 수 있게 되는 이점이 있다.According to the present invention, by reducing the amount of oil flowing into the vacuum pump housing, it is possible to reduce the driving torque of the vacuum pump, reduce the friction loss, thereby reducing the driving force of the vacuum pump, it is possible to improve the fuel economy There is an advantage.

진공펌프, 노즐, 플런저 Vacuum Pump, Nozzle, Plunger

Description

진공펌프 노즐 구조{STRUCTURE OF NOZZLE FOR VACUUM PUMP}Vacuum Pump Nozzle Structure {STRUCTURE OF NOZZLE FOR VACUUM PUMP}

도 1은 일반적인 진공펌프의 개략적인 단면도.1 is a schematic cross-sectional view of a general vacuum pump.

도 2는 본 발명에 따른 진공펌프 노즐 구조의 구성을 개략적으로 나타낸 구성 단면도.Figure 2 is a schematic cross-sectional view showing the configuration of a vacuum pump nozzle structure according to the present invention.

도 3 및 도 4는 도 2의 작동 상태를 나타내 보인 개략적인 작동도.3 and 4 are schematic operation views showing the operating state of FIG.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10. 진공펌프10. Vacuum pump

21. 노즐부21. Nozzle

21a. 바이패스 홀21a. Bypass hall

22. 플런저22. Plunger

23. 스프링23. Spring

본 발명은 진공펌프 노즐 구조에 관한 것으로서, 보다 상세하게는 진공펌프의 구동력 감소시키기 위한 진공펌프 노즐 구조에 관한 것이다.The present invention relates to a vacuum pump nozzle structure, and more particularly to a vacuum pump nozzle structure for reducing the driving force of the vacuum pump.

도 1에 도시된 바와 같은, 진공펌프(10)의 역할은 차량의 브레이크 부스터를 항상 진공을 만들어 주어 운전자가 브레이크 페달을 밟을 때, 힘이 적게 들도록 하는 기능을 하는 기능성 부품이다.As shown in Figure 1, the role of the vacuum pump 10 is a functional component that functions to make the brake booster of the vehicle at all times to make a vacuum, when the driver presses the brake pedal, less force.

따라서 부스터를 진공으로 만들어 주기 위해서는 진공펌프(10)가 그 기능을 하고, 진공펌프(10)의 기능상 오일은 절대 필요하다.Therefore, in order to make the booster into a vacuum, the vacuum pump 10 functions as the function, and the functional oil of the vacuum pump 10 is absolutely necessary.

그리고 노즐을 통해 공급된 오일은 진공펌프(10) 하우징의 냉각 및 진공펌프(10) 내의 회전체인 베인과 하우징 벽간의 실링(Sealing) 기능과 윤활 기능을 한다.The oil supplied through the nozzle functions to cool the vacuum pump 10 housing and to seal and lubricate the vane, which is a rotor in the vacuum pump 10, and the housing wall.

또한 오일 공급 통로는 다음과 같다.In addition, the oil supply passage is as follows.

캠샤프트 중공홀 유로에서 진공펌프(10) 노즐 내경(Φ1.0)을 통해 진공펌프(10) 하우징 내로 유입하고, 다시 진공펌프(10) 내의 아웃렛 밸브(Outlet Valve)를 통해 실린더헤드로 리턴(Return)된다.The camshaft flows into the housing of the vacuum pump 10 through the nozzle bore diameter Φ 1.0 of the hollow shaft of the cam shaft and returns to the cylinder head through an outlet valve in the vacuum pump 10 ( Return).

그리고 부스터의 압이 진공이 형성된 이후에도 오일은 구조상 연속적으로 계속 유입된다. 이로 인해 진공펌프(10)는 유입된 오일을 배출시키기 위해 구동토크가 증대되고, 또한 마찰도 증대된다.And even after the vacuum of the booster is formed, the oil continues to flow continuously in structure. As a result, the driving torque of the vacuum pump 10 is increased to discharge the introduced oil, and friction is also increased.

상기한 바와 같이, 진공펌프(10)의 기능은 부스터 내의 압력을 진공압으로 만드는 것인데, 이 기능을 위해 진공펌프(10)는 오일공급용 노즐을 통해 오일이 연속적으로 엔진 아이들(Idle) 속도 시 15～35l/h, 엔진 최고 속도 시 40～60l/h가 유입된다.As described above, the function of the vacuum pump 10 is to convert the pressure in the booster to a vacuum pressure. For this function, the vacuum pump 10 uses the oil supply nozzle to continuously supply the oil at the engine idle speed. 15 to 35 l / h, 40 to 60 l / h at maximum engine speed.

이로 인해 부스터 내의 압력이 진공압에 도달하여도 오일은 구조상 연속적으로 계속 유입되어 결국 진공펌프(10)의 오일에 의한 구동 마찰 손실은 커지게 된 다. As a result, even when the pressure in the booster reaches the vacuum pressure, the oil continues to flow continuously in structure, so that the driving friction loss caused by the oil in the vacuum pump 10 becomes large.

한편, 도 1에서 참조부호 'A'는 오일의 공급 상태를 나타내 보인 것이고, 'B'는 오일의 배출 상태를 나타내 보인 것이다.Meanwhile, reference numeral 'A' in FIG. 1 shows a supply state of oil, and 'B' shows a discharge state of oil.

본 발명은 상기와 같은 문제점을 해결하기 위하여 창출된 것으로서, 오일에 의한 구동 마찰 손실을 줄여 진공펌프의 구동력이 감소되도록 한 진공펌프 노즐 구조를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, and an object of the present invention is to provide a vacuum pump nozzle structure in which the driving force of the vacuum pump is reduced by reducing the driving friction loss caused by oil.

상기와 같은 목적을 달성하기 위한 본 발명의 진공펌프 노즐 구조는, 부스터 내의 압력을 진공압으로 만들기 위해 오일이 연속적으로 유입되게 구비된 오일 공급용 노즐부와; 상기 노즐부에 설치되어 오일의 압력으로 압축 스트로크가 발생되게 작동하는 플런저와; 상기 플런저 내에 설치되어 오일의 압력에 따라 압축 및 팽창 작동하는 스프링;을 포함하는 것을 그 특징으로 한다. The vacuum pump nozzle structure of the present invention for achieving the above object, the oil supply nozzle portion provided to continuously flow oil to make the pressure in the booster to a vacuum pressure; A plunger installed in the nozzle part and operable to generate a compression stroke under the pressure of oil; It is characterized in that it comprises a; installed in the plunger is a spring for compression and expansion operation in accordance with the pressure of the oil.

이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2에는 본 발명에 따른 진공펌프 노즐 구조의 구성을 개략적으로 나타낸 구성 단면도가 도시되어 있다.2 is a configuration cross-sectional view schematically showing the configuration of the vacuum pump nozzle structure according to the present invention.

설명에 앞서, 여기에서는 일반적인 진공펌프 노즐 구조에 대한 구성 설명은 생략하고, 본 발명에 따른 진공펌프 노즐 구조의 특징적인 구성만을 설명하기로 한다.Prior to the description, the description of the configuration of the general vacuum pump nozzle structure will be omitted, and only the characteristic configuration of the vacuum pump nozzle structure according to the present invention will be described.

도면을 참조하면, 본 발명에 따른 진공펌프 노즐 구조는, 부스터 내의 압력을 진공압으로 만들기 위해 오일이 연속적으로 유입되게 구비된 오일 공급용 노즐부(21)와, 이 노즐부(21)에 설치되어 오일의 압력으로 압축 스트로크(Stroke)가 발생되게 작동하는 플런저(Plunger)(22)와, 이 플런저(22) 내에 설치되어 오일의 압력에 따라 압축 및 팽창 작동하는 스프링(23)을 포함하여 구성된다.Referring to the drawings, the vacuum pump nozzle structure according to the present invention is provided with an oil supply nozzle unit 21 provided with oil to continuously flow in order to make the pressure in the booster into a vacuum pressure, and is installed in the nozzle unit 21 And a plunger 22 that operates to generate a compression stroke under the pressure of the oil, and a spring 23 installed in the plunger 22 to compress and expand according to the pressure of the oil. do.

상기 노즐부(21)에는 오일을 바이패스(Bypass)시키기 위한 바이패스 홀(Bypass Hole)(21a)이 형성되고, 엔진의 속도가 높아지면, 상기 플런저(22)가 유입된 오일의 압력으로 압축 스트로크가 발생된다.The nozzle unit 21 is formed with a bypass hole 21a for bypassing oil, and when the engine speed is increased, the plunger 22 is compressed to the pressure of the introduced oil. A stroke is generated.

상기한 바와 같은 구성을 갖는 본 발명에 따른 진공펌프 노즐 구조의 작용을 설명하면 다음과 같다.Referring to the operation of the vacuum pump nozzle structure according to the present invention having the configuration as described above are as follows.

설명에 앞서, 여기에서는 일반적인 진공펌프 노즐 구조에 대한 작용 설명은 생략하고, 본 발명에 따른 진공펌프 노즐 구조의 특징적인 작용만을 설명하기로 한다.Prior to the description, the description of the operation of the general vacuum pump nozzle structure will be omitted, and only the characteristic operation of the vacuum pump nozzle structure according to the present invention will be described.

본 발명에 따른 진공펌프 노즐 구조는, 오일공급용 노즐부(21)에 유량 조절이 가능한 장치를 적용한 것으로, 오일 압력이 낮은 엔진 아이들(Idle) 시에는 도 3에 도시된 바와 같이, 캠샤프트 중공홀 유로를 통하고, 진공펌프 노즐부(21) 내경(Φ1.0)을 통해 진공펌프 하우징부로 바로 오일이 유입되게 하여 진공펌프의 기능에 문제가 없도록 한다.In the vacuum pump nozzle structure according to the present invention, an apparatus capable of adjusting the flow rate is applied to the nozzle part 21 for oil supply. As shown in FIG. 3 during the engine idle with low oil pressure, the camshaft hollow Through the hole flow path, the oil flows directly into the vacuum pump housing through the vacuum pump nozzle part 21 inner diameter Φ 1.0 so that there is no problem in the function of the vacuum pump.

그리고 부스터 내의 진공압이 도달되고 엔진의 속도가 높을 시에는, 도 4에 도시된 바와 같이 오일이 압력도 같이 높아진다. 이때 노즐부(21)에 장착된 유량 조절 기구인 플러저가 유입된 오일의 압력으로 압축 스트로크가 발생된다. When the vacuum pressure in the booster is reached and the engine speed is high, the oil also increases in pressure as shown in FIG. 4. At this time, a compression stroke is generated by the pressure of the oil into which the plunger, which is a flow rate adjusting mechanism mounted on the nozzle unit 21, flows.

상기 플런저(22)의 압축 스트로크가 노즐부(21) 내의 바이패스 홀(21a)과 만나는 위치까지 스트로크 변위가 이루어지면, 상기 바이패스 홀(21a)을 통해 오일이 바이패스된다. When the stroke displacement is made to the position where the compression stroke of the plunger 22 meets the bypass hole 21a in the nozzle portion 21, oil is bypassed through the bypass hole 21a.

그리고 장착 후, 빠지지 않도록 언더컷(Undercut) 형상을 두는 것을 특징으로 한다. 따라서 진공펌프 하우징 내로는 오일의 유입량이 적어지게 되어 진공펌프의 구동 토크도 감소되며, 마찰 손실도 저감된다. And after mounting, it characterized in that the undercut (Undercut) shape so as not to fall out. Therefore, the amount of oil introduced into the vacuum pump housing is reduced, so that the driving torque of the vacuum pump is reduced, and the friction loss is also reduced.

상술한 바와 같이 본 발명에 따른 진공펌프 노즐 구조는 다음과 같은 효과를 갖는다.As described above, the vacuum pump nozzle structure according to the present invention has the following effects.

진공펌프 하우징 내로 오일의 유입량을 적게 되도록 함으로써, 진공펌프의 구동 토크를 감소시키며, 마찰 손실을 저감시키게 된다.By reducing the amount of oil introduced into the vacuum pump housing, the driving torque of the vacuum pump is reduced and frictional losses are reduced.

따라서 진공펌프의 구동력을 감소시킬 수 있고, 연비를 개선할 수 있게 된다.Therefore, the driving force of the vacuum pump can be reduced, and fuel economy can be improved.

본 발명은 도면에 도시된 일 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 당해 기술 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 실시예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 보호 범위는 첨부된 특허청구범위에 의해서만 정해져야 할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (3)

부스터 내의 압력을 진공압으로 만들기 위해 오일이 연속적으로 유입되게 구비된 오일 공급용 노즐부와;An oil supply nozzle unit provided to continuously flow oil to make the pressure in the booster into a vacuum pressure; 상기 노즐부에 설치되어 오일의 압력으로 압축 스트로크가 발생되게 작동하는 플런저와;A plunger installed in the nozzle part and operable to generate a compression stroke under the pressure of oil; 상기 플런저 내에 설치되어 오일의 압력에 따라 압축 및 팽창 작동하는 스프링;을 포함하며,And installed in the plunger to compress and expand in accordance with oil pressure. 엔진의 속도가 높아지면, 상기 플런저가 유입된 오일의 압력으로 압축 스트로크가 발생되는 것을 특징으로 하는 진공펌프 노즐 구조.When the engine speed increases, the vacuum pump nozzle structure, characterized in that the compression stroke is generated by the pressure of the oil introduced into the plunger. 제1항에 있어서,The method of claim 1, 상기 노즐부에는 오일을 바이패스시키기 위한 바이패스 홀이 형성된 것을 특징으로 하는 진공펌프 노즐 구조.The nozzle unit has a vacuum pump nozzle structure, characterized in that a bypass hole for bypassing oil is formed. 삭제delete
KR1020050121416A 2005-12-10 2005-12-10 Structure of nozzle for vacuum pump KR101126231B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990059323A (en) * 1997-12-30 1999-07-26 정몽규 Temperature controller of automotive engine oil
KR100444876B1 (en) * 2002-11-07 2004-08-18 현대자동차주식회사 Relief valve having secondary plunger

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990059323A (en) * 1997-12-30 1999-07-26 정몽규 Temperature controller of automotive engine oil
KR100444876B1 (en) * 2002-11-07 2004-08-18 현대자동차주식회사 Relief valve having secondary plunger

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