KR20020039560A - A vane pump - Google Patents

A vane pump Download PDF

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Publication number
KR20020039560A
KR20020039560A KR1020000069465A KR20000069465A KR20020039560A KR 20020039560 A KR20020039560 A KR 20020039560A KR 1020000069465 A KR1020000069465 A KR 1020000069465A KR 20000069465 A KR20000069465 A KR 20000069465A KR 20020039560 A KR20020039560 A KR 20020039560A
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KR
South Korea
Prior art keywords
rotor
casing
movable
vane
circumferential surface
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KR1020000069465A
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Korean (ko)
Inventor
오인숙
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오인숙
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Priority to KR1020000069465A priority Critical patent/KR20020039560A/en
Publication of KR20020039560A publication Critical patent/KR20020039560A/en

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Classifications

    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F04C2240/20—Rotors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

PURPOSE: A vane pump is provided to improve pumping pressure and efficiency and to reduce noise. CONSTITUTION: A pump comprises a rotor(10); a movable blade(12); and a casing(13). The rotor has a single blade groove(11) linearly penetrating a center of rotation thereof. The movable blade is inserted into the blade groove of the rotor so that both ends thereof contact with an inner circumferential surface of the casing simultaneously. The casing has the inner circumferential surface with shape identical with traces of the ends of the movable blade on rotation. Both ends of the movable blade form acute angles.

Description

베인 펌프{A VANE PUMP}Vane Pump {A VANE PUMP}

본 발명은 케이싱 내에 편심되게 설치된 로터를 회전시켜 로터에 예속된 가동 날개로 하여금 흡입구측의 유체를 흡입하여 토출구로 토출시키는 베인 펌프에 관한 것이며, 특히 원심력과 과부하에도 펌핑작용이 원활하고, 로터의 제작이 용이하며, 가동 날개의 교체빈도가 적어 유지비가 저렴하고 가동중단시간의 단축에 따른 고효율 펌핑이 가능하며, 기동시 소음도 적은 베인 펌프에 관한 것이다.The present invention relates to a vane pump for rotating the rotor eccentrically installed in the casing to allow the movable blades bound to the rotor to suck the fluid on the inlet side and discharge it to the outlet. Particularly, the pumping action is smooth under centrifugal force and overload. It is easy to manufacture, and there is a low replacement cost of the movable blade, low maintenance cost, high efficiency pumping by shortening downtime, and low noise during start-up.

도 4에서, 일반적인 베인 펌프는 흡입구(2)와 토출구(3)를 가진 케이싱(1)의 내주면(4)은 진원형이고, 케이싱(1) 내에서 흡입구(2)와 토출구(3)에 다같이 가까운 곳에는 로터(5)가 편심되게 설치되어 있으며, 방사상으로 패인 로터(5)의 각 날개홈(6)에는 가동 날개(7)가 삽입되어 있다.In Fig. 4, the general vane pump has an inner circumferential surface 4 of the casing 1 having an inlet 2 and an outlet 3 in the form of a circle, and is connected to the inlet 2 and the outlet 3 in the casing 1. The rotor 5 is eccentrically installed in the vicinity, and the movable blade 7 is inserted in each vane groove 6 of the rotor 5 which is radially recessed.

가동 날개는 로터가 회전할 때의 원심력 작용으로 로터의 날개홈에서 원심방향으로 튀어나간 날개의 선단이 케이싱의 내주면에 밀착되어 이어지는 회전으로 조장되는 진공상태로 흡입구 유체를 빨아 들였다가 흡입구간에서 토출구간으로 접어들면서부터는 이제까지의 흡입 때와는 반대로 케이싱의 내주면에 밀려들어가면서 그 앞쪽의 체적이 점차 감소됨에 따라 흡입해 온 유체를 토출구로 내밀어 토출하게 되는데, 문제는 가동시의 원심력은 가동 날개의 흡입작용에 영향을 주고, 흡입구간에서 가동 날개에 과부하가 걸려도 펌핑압력이 약화된다는 것이다.The movable wing sucks the inlet fluid in a vacuum state where the tip of the wing that protrudes from the rotor wing groove in the centrifugal direction is in close contact with the inner circumferential surface of the casing by the centrifugal force when the rotor rotates, and is encouraged to be discharged. As it enters into the section, it is pushed into the inner circumferential surface of the casing as opposed to the inhalation so far, and as the volume in front of it is gradually reduced, the sucked fluid is pushed out and discharged to the discharge port. It affects the action and the pumping pressure is weakened even if the moving wing is overloaded in the suction section.

다시 말해, 작동중인 가동 날개에 큰 원심력이 작용하거나 과부하가 걸리면 그 압력을 이기지 못한 가동 날개는 로터의 날개홈 속으로 숨어 들어가는 경우가 있으며, 그 영향으로 케이싱의 내주면에 밀착되어야 할 가동 날개의 외측 날개끝이 케이싱 내주면에서 떨어지기 때문에 흡입압력이 누설된다. 흡입압력이 누설되면 펌핑작용에도 악영향을 미쳐 토출이 시원찮고 양정도 낮아진다.In other words, when a large centrifugal force is applied or an overload is applied to the movable movable blade, the movable blade that cannot overcome the pressure may be hidden into the rotor groove of the rotor, and as a result, the outer side of the movable blade to be in close contact with the inner circumferential surface of the casing. Since the tip of the blade falls off the inner circumference of the casing, the suction pressure leaks. If the suction pressure is leaked, the pumping action is adversely affected and the discharge is cool and the quantity is lowered.

또, 많은 수의 날개홈은 로터의 가공난이도가 높아 원가에 부담을 주고, 소모품인 가동 날개의 교체빈도도 높고 이에 따른 펌핑 중단횟수에 상응하여 펌핑도 비효율적이며, 특히 가동 날개와 케이싱 내주면간의 가동 날개 수만큼 진공 공간도 다수여서 기동시의 소음 또한 컸다. 종래의 베인 펌프가 바로 그랬다.In addition, a large number of blade grooves are expensive due to the difficulty of processing of the rotor, and the replacement frequency of moving blades, which is a consumable, is also high, and pumping is inefficient in accordance with the pumping stop frequency. Since there were many vacuum spaces as many as the number of wings, the noise during start-up was also great. This is exactly the case with conventional vane pumps.

따라서 본 발명의 목적은 원심력과 과부하의 영향을 받지 않고, 로터의 가공난이도가 우수하며, 가동 날개의 감축에 따른 교체빈도 감소와 유지비 경감 그리고 가동중단시간의 단축과 이에 따른 펌핑 효율의 증대, 및 저소음 기동이 가능한 새로운 형식의 베인 펌프를 제공하는 것이다.Therefore, the object of the present invention is not affected by the centrifugal force and overload, the machining difficulty of the rotor is excellent, the reduction of replacement frequency and reduction of maintenance costs due to the reduction of the movable blades, the reduction of downtime and the increase of pumping efficiency, and It is to provide a new type of vane pump that can operate quietly.

날개홈에 가동 날개가 삽입된 로터를 케이싱내에서 편심되도록 삽입하고 케이싱 안으로 들어 온 주축의 선단에 로터를 체결한 베인 펌프에 있어서, 본 발명은 회전중심을 일직선으로 관통하는 단일 날개홈을 가진 로터와; 로터의 날개홈에 삽입된 상태에서 어느 회전각도에서든 양쪽 날개끝이 케이싱의 내주면에 동시에 접촉하도록 된 가동 날개와; 로터의 날개홈에 삽입된 상기 가동 날개가 회전할 때의 날개끝이 그리는 궤적과 동형의 내주면을 가진 케이싱으로 조합한 베인 펌프의 구성을 특징으로 한다.In the vane pump in which the rotor with movable blades inserted into the wing grooves is eccentrically inserted into the casing and the rotor is fastened to the tip of the main shaft which has entered the casing, the present invention provides a rotor having a single wing groove penetrating the rotation center in a straight line. Wow; Movable blades such that both blade ends are in contact with the inner circumferential surface of the casing at any rotational angle while being inserted into the blade groove of the rotor; The vane pump is characterized by a configuration of a vane pump combined with a trajectory drawn by the blade tip when the movable blade inserted into the blade groove of the rotor rotates and a casing having the same inner circumferential surface.

도 1은 본 발명에 의한 로터와 가동 날개의 사시도1 is a perspective view of a rotor and a movable blade according to the present invention

도 2는 본 발명에 의한 베인 펌프의 케이싱측 종단측면도Figure 2 is a casing side longitudinal side view of the vane pump according to the present invention

도 3은 본 발명에 의한 베인 펌프의 종단면도Figure 3 is a longitudinal sectional view of the vane pump according to the present invention

도 4는 종래 베인 펌프의 구성도4 is a configuration diagram of a conventional vane pump

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

10 : 로터11 : 날개홈10: rotor 11: wing groove

12 : 가동 날개13 : 케이싱12: movable wing 13: casing

14 : 내주면14: inner circumference

도 1에서, 로터(10)에는 날개홈(11)이 하나 뿐이다. 이 날개홈(11)은 로터(10)의 회전중심점을 지나도록 횡방향으로 완전 관통시켜 흡입구간과 토출구간은 물론 토출구간 이후의 휴식구간 등 모든 구간에서 가동 날개(12)의 출입이 자연스럽게 이뤄지도록 한다. 이렇듯 로터(10)가 단일 날개홈(11)을 가짐에 따라 가동 날개(12)도 물론 단일체 이뤄진다. 로터(10)의 주벽에 천공된 작은 구멍은 오일 주입공(19)이고, 복판에 뚫인 구멍은 축공(20)이다.In FIG. 1, there is only one wing groove 11 in the rotor 10. The vane groove 11 is completely penetrated in the transverse direction so as to pass through the center of rotation of the rotor 10, the entrance and exit of the movable wing 12 is naturally made in all sections, such as the suction section and the discharge section, as well as the rest section after the discharge section. To do that. Thus, as the rotor 10 has a single wing groove 11, the movable wing 12 is also made of a single body. The small hole drilled in the circumferential wall of the rotor 10 is an oil injection hole 19, and the hole drilled in the abdomen is the shaft hole 20.

가동 날개(12)의 양 날개끝(12a,b)이 기존의 베인 펌프용 가동 날개처럼 둥글거나 호상면이면 케이싱 내주면(14)과의 접촉면이 넓어서 기동할 때 소음이 크게 나고 조기 마모의 요인이기도 하지만 내주면(14)과 날개끝(12a,b)과의 사이에 모래 같은 이물질이 낀 경우 손상 가속화를 초래하는 원인도 된다. 이런 점에서, 가동 날개(12)의 예각형 날개끝(12a,b)은 기존의 가동 날개의 단점을 보완하기에 충분하다.If the tip 12a, b of the movable vane 12 is round or arc like the conventional vane pump movable vane, the contact surface with the casing inner circumferential surface 14 is wider, so that the noise is large when starting and is a factor of premature wear. However, if a foreign object such as sand is caught between the inner circumferential surface 14 and the wing tips 12a and b, it may cause damage. In this respect, the acute angled vanes 12a, b of the movable vanes 12 are sufficient to compensate for the disadvantages of the existing movable vanes.

한편으로, 도 4를 참조하여 다가동 날개형 베인 펌프에 대하여 다시 언급할 필요가 있다. 케이싱(1)내에서 로터(5)의 중심을 지나는 수평선분(s2)은 케이싱(1)의 내주면(4)의 중심점을 지나는 수평선분(s1) 보다도 짧다. 그럼에도 모든 가동 날개(7)는 독립되어 있기 때문에 출몰길이가 대향측 가동 날개(7a-7a')(7b-7b')(7c-7c')(7d-7d')끼리 상대적이어서 신축성을 발휘하므로 위치에 상관없이 모든 가동 날개(7)의 외측 단은 한결같이 케이싱(1)의 내주면(4)에 접촉할 수 있지만, 단수형 가동 날개(12)는 길이가 비신축적이기 때문에 상시 동시 접촉이 불가능하다.On the other hand, it is necessary to refer again to the multi-moving vane vane pump with reference to FIG. 4. The horizontal portion s2 passing through the center of the rotor 5 in the casing 1 is shorter than the horizontal portion s1 passing through the center point of the inner circumferential surface 4 of the casing 1. Nevertheless, since all the movable vanes 7 are independent, the haunting length is relatively elastic between the opposing movable vanes 7a-7a ', 7b-7b', 7c-7c ', and 7d-7d'. Regardless of the position, the outer ends of all the movable vanes 7 can be in constant contact with the inner circumferential surface 4 of the casing 1, but since the singular movable vanes 12 are non-stretchable, they cannot always be simultaneously contacted.

그러므로 본 발명의 케이싱(13) 내주면(14)은 단수형 가동 날개(12)를 채택하여 기존의 다가동 날개형 베인 펌프처럼 가동 날개(12)가 어느 회전각도에 있든 그 흡입-토출기능을 수행하는 데 이상이 없도록 양 날개끝(12a,b)이 항상 내주면(14)에 동시 접촉될 수 있는 형태로 변경되어야 한다. 이러한 취지에서, 도 2와 같이 상기 수평선분(s2)과 수직선분(s3)이 일치하는 것을 전제로 하는 비정형 타원으로 내주면(14)을 형성하고, 로터(10)는 상기 수평선분(s2)과 수직선분(s3)의 직교 교차점(o)을 회전중심으로 함과 동시에 로터(10)의 반경은 상기 교차점(o)에서 수직선분(s3)의 정점(p1)까지의 길이로 삼은 원기둥형으로 형성하여 설치한다.Therefore, the casing 13 inner circumferential surface 14 of the present invention adopts a singular movable vane 12 to perform the suction-discharge function at any rotational angle of the movable vane 12 at any rotational angle like a conventional multi-moving vane pump. In order that there is no abnormality, both wing tips 12a and b should be changed in such a manner that they can be in contact with the inner circumferential surface 14 at the same time. For this purpose, an inner circumferential surface 14 is formed of an irregular ellipse on the premise that the horizontal line segment s2 and the vertical line segment s3 coincide with each other, and the rotor 10 is formed with the horizontal line segment s2. The orthogonal intersection point o of the vertical line segment s3 is the center of rotation and the radius of the rotor 10 is formed in a cylindrical shape with the length from the intersection point o to the vertex p1 of the vertical line segment s3. Install it.

다시 말해, 케이싱(13)의 내주면(14)은 상기 수평선분(s2)과 수직선분(s3)의 길이가 동일한 것을 전제로 하여 회전하는 로터(10)상에서 가동 날개(12)의 날개끝(12a,b)이 그린 궤적을 따라 그대로 형성하는 것이다. 이러한 가동 날개(12)의 궤적을 계산해 보면 비정형 타원이 된다.In other words, the inner circumferential surface 14 of the casing 13 has a wing tip 12a of the movable blade 12 on the rotating rotor 10 assuming that the horizontal line segment s2 and the vertical line segment s3 have the same length. , b) is formed along the trace of the green. By calculating the trajectory of the movable blade 12, it becomes an atypical ellipse.

도 3에서, 로터(10)를 케이싱(13)에 삽입하고 그 보스(15)측의 암나사형 축공(20)을 케이싱(13)의 바닥에 천공된 축공으로 들어 와 있는 베어링(16)의 주축(17) 선단에 체결하며, 날개홈(11)에 가동 날개(12)를 삽입하고 덮개(18)로 앞을 가린 다음에 케이싱(13)의 플랜지와 덮개(18)의 가장자리를 보울트로 체결하여 고정하면 새로운 형식의 베인 펌프가 완성된다.In FIG. 3, the main shaft of the bearing 16 is inserted into the casing 13 and the female threaded shaft hole 20 on the boss 15 side enters the shaft hole drilled in the bottom of the casing 13. (17) Fasten to the tip, insert the movable blades 12 into the wing grooves 11, cover the front with the cover 18, and then fasten the flange of the casing 13 and the edge of the cover 18 with a bolt. When secured, a new type of vane pump is completed.

도 2로 돌아가서, 실선표시와 같이 가동 날개(12)가 흡입구간과 토출구간의 경계인 중립위치에 있을 때는 가동 날개(12)의 위 날개끝(12a)은 날개홈(11)의 상단과 일치하면서 그 쪽 내주면상에 닿고 반대편 가동 날개(12)의 아래 날개끝(12b)은 대향 위치의 내주면상에 접촉되어 있다. 이 상태에서 로터(10)가 화살표 방향으로 기동하여 흡입구간과 토출구간의 경계점(p2)을 지나 흡출해 온 유체를 토출시키고 출발 당시의 위치로 귀환하기까지 가동 날개(12)는 양쪽 날개끝(12a,b)은 언제나 내주면(14)에 동시에 접촉하므로 펌핑작용이 이어지는 동안 원심력에도 가동 날개(12)가 어느 한 쪽으로 편중되지 않는다. 그래서 펌핑중에 가동 날개(12)에 큰 원심력이 작용하거나 과부하가 걸리거나 또는 이들 두 압력요인이 겹치더라도 가동 날개(12)가 어느 한 쪽으로 치우치지 않으므로 흡입 토출시 누압현상이 발생할 개연성이 사라지고, 이에 따라 펌핑기능은 시종 변함없고 또한 펌핑 압력도 현저히 높아진다.2, when the movable vane 12 is in the neutral position, which is the boundary between the suction section and the discharge section, as shown by the solid line, the upper blade tip 12a of the movable vane 12 coincides with the upper end of the vane groove 11, The lower blade tip 12b of the opposite movable blade 12 is in contact with the inner circumferential surface of the opposing position. In this state, the rotor 10 starts in the direction of the arrow, discharges the fluid sucked out past the boundary point p2 between the suction section and the discharge section, and moves the movable blades 12 to both wing tips 12a. Since b always contacts the inner circumferential surface 14 at the same time, the movable blade 12 is not biased to either side even in the centrifugal force during the pumping action. Therefore, even if a large centrifugal force acts on the movable vane 12 or is overloaded while pumping, or the two pressure factors overlap, the movable vane 12 does not deviate to either side, and thus the possibility of a pressure leak during suction discharge disappears. The pumping function therefore remains constant and the pumping pressure is significantly higher.

단수형 가동 날개(12)는 케이싱(13)의 내주면(14)과의 접촉개소가 단 두 곳뿐이다. 이와 같이 케이싱 내주면(14)에 대한 가동 날개(12)의 접촉점이 대폭 감소됨에 따라 기동시 내주면(14)과의 마찰 저항이 작아서 기동할 때 거의 소음이 나지 않는다.The singular movable blade 12 has only two contact points with the inner circumferential surface 14 of the casing 13. As the contact point of the movable blade 12 with respect to the casing inner peripheral surface 14 is greatly reduced in this way, the frictional resistance with the inner peripheral surface 14 at the time of starting becomes small, and there is hardly a noise when starting.

단일 날개홈을 가진 로터와 단일 가동 날개 그리고 상기 가동 날개의 궤적을 따라 작성된 특이한 구조의 내주면을 가진 케이싱으로 조합된 본 발명의 베인 펌프에서는 작동중인 가동 날개의 어느 한 쪽에 지나친 원심력과 과부하가 걸리더라도 가동 날개의 끝이 케이싱의 내주면에서 떨어지지 않으므로 펌핑 압력과 펌핑 효율이 획기적이리만큼 높아진다.In the vane pump of the present invention combined with a rotor having a single wing groove, a single movable wing and a casing having an inner circumferential surface formed along the trajectory of the movable wing, even if excessive centrifugal force and overload are applied to either side of the movable wing in operation. Since the tip of the movable blade does not fall off the inner circumferential surface of the casing, the pumping pressure and pumping efficiency are dramatically increased.

또, 로터는 회전중심을 일직선으로 지나는 하나의 날개홈만이 주어지므로 로터의 날개홈 형성이 대단히 용이하며, 가동 날개의 단일화에 따라 조립과 교체작업도 수월하고 가동 날개의 교체시 가동중단시간이 적어 펌핑능률도 향상된다. 단일형 가동 날개는 또한 케이싱 내주면과의 접촉점이 단 두 곳뿐이어서 기동시 소음도 아주 적어 정숙한 펌핑이 가능하며, 예각으로 된 날개끝은 기존의 베인 펌프용 가동 날개와는 달리 케이싱 내주면과의 접촉면이 적어서 기동할 때 소음 감소효과가 더하다.In addition, the rotor is provided with only one wing groove passing straight through the center of rotation, so it is very easy to form the wing groove of the rotor, and it is easy to assemble and replace work according to the unification of the movable blades, and the downtime during the replacement of the movable blades is long. Less pumping efficiency is also improved. The single movable wing also has only two contact points with the inner circumferential surface of the casing, so there is very little noise during start-up, so it can be quietly pumped.The acute angled wing has a small contact surface with the inner circumferential surface of the casing unlike the vane pump movable blade. Noise reduction effect is added when maneuvering.

Claims (2)

날개홈에 가동 날개가 삽입된 로터를 케이싱내에서 편심되도록 삽입하고 케이싱 안으로 들어 온 주축의 선단에 로터를 체결한 베인 펌프에 있어서, 회전중심을 일직선으로 관통하는 단일 날개홈(11)을 가진 로터(10)와; 로터(10)의 날개홈(11)에 삽입된 상태에서 어느 회전각도에서든 양쪽 날개끝(12a,b)이 케이싱(13)의 내주면(14)에 동시에 접촉하도록 된 가동 날개(12)와; 로터(10)의 날개홈(11)에 삽입된 상기 가동 날개(12)가 회전할 때의 날개끝(12a,b)이 그리는 궤적과 동형의 내주면(14)을 가진 케이싱(13)으로 조합한 것을 특징으로 하는 베인 펌프.In the vane pump, in which a rotor with movable blades inserted into the wing grooves is eccentrically inserted in the casing and the rotor is fastened to the distal end of the main shaft introduced into the casing, the rotor having a single wing groove 11 penetrating the center of rotation in a straight line. 10; A movable vane 12 in which both vane ends 12a and b are in contact with the inner circumferential surface 14 of the casing 13 at any rotational angle while being inserted into the vane groove 11 of the rotor 10; Combination of the trajectories drawn by the wing tips 12a and b when the movable vanes 12 inserted into the wing grooves 11 of the rotor 10 and the casing 13 having the same inner circumferential surface 14. A vane pump, characterized in that. 제1항에 있어서, 상기 가동 날개(12)는 양 날개끝(12a,b)이 예각으로 된 베인 펌프.The vane pump according to claim 1, wherein the movable vanes (12) have acute angles at both vane ends (12a, b).
KR1020000069465A 2000-11-22 2000-11-22 A vane pump KR20020039560A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5510063A (en) * 1978-07-07 1980-01-24 Tetsuo Matsubara Single-vane displacement rotary pump
JPS59208184A (en) * 1983-05-11 1984-11-26 Matsushita Electric Ind Co Ltd Vane pump
JPS6155387A (en) * 1984-08-24 1986-03-19 Kojuro Shinozaki Rotary pump
JPS627988A (en) * 1985-07-02 1987-01-14 Junichi Eguchi Vane pump
KR200238620Y1 (en) * 2001-04-03 2001-10-10 오인숙 Vane pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5510063A (en) * 1978-07-07 1980-01-24 Tetsuo Matsubara Single-vane displacement rotary pump
JPS59208184A (en) * 1983-05-11 1984-11-26 Matsushita Electric Ind Co Ltd Vane pump
JPS6155387A (en) * 1984-08-24 1986-03-19 Kojuro Shinozaki Rotary pump
JPS627988A (en) * 1985-07-02 1987-01-14 Junichi Eguchi Vane pump
KR200238620Y1 (en) * 2001-04-03 2001-10-10 오인숙 Vane pump

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