KR20010039353A - Rotor structure of feed pump for vane - Google Patents

Rotor structure of feed pump for vane Download PDF

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Publication number
KR20010039353A
KR20010039353A KR1019990047715A KR19990047715A KR20010039353A KR 20010039353 A KR20010039353 A KR 20010039353A KR 1019990047715 A KR1019990047715 A KR 1019990047715A KR 19990047715 A KR19990047715 A KR 19990047715A KR 20010039353 A KR20010039353 A KR 20010039353A
Authority
KR
South Korea
Prior art keywords
vane
feed pump
rotor
ring
coupled
Prior art date
Application number
KR1019990047715A
Other languages
Korean (ko)
Inventor
김인규
Original Assignee
박상록
주식회사 두원정공
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 박상록, 주식회사 두원정공 filed Critical 박상록
Priority to KR1019990047715A priority Critical patent/KR20010039353A/en
Publication of KR20010039353A publication Critical patent/KR20010039353A/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
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0076—Fixing rotors on shafts, e.g. by clamping together hub and shaft
    • 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

Abstract

PURPOSE: A rotor structure of feed pump for vane is provided to achieve an improved operation of the feed pump by improving the adherence force of the vane even when the pressure increases during operation of the feed pump. CONSTITUTION: A rotor(2) with vane grooves(1,1') is coupled to a driving shaft(3), and a ring(4) is coupled to the periphery of the driving shaft in such a manner as to be eccentric with the center of the rotor. Vanes(5,5') are inserted into vane grooves so as to form four chambers. The ring has at an inner surface thereof a fuel inlet port(6) and a fuel outlet port(7). An equalizing hole(8) is formed so as to connect an inner bottom section(1a) of each vane groove and the circumference of the rotor in the advancing direction of the vane.

Description

베인용 피드펌프의 로터구조{Rotor Structure of Feed Pump for Vane}Rotor Structure of Feed Pump for Vane

본 발명은 디젤엔진에 있어서, 베인용 피드펌프의 로터구조를 개선하여 피드펌프의 비정상 작동을 방지되게 한 것에 관한 것이다.The present invention relates to improving the rotor structure of a vane feed pump in a diesel engine to prevent abnormal operation of the feed pump.

베인용 피드펌프는 디젤엔진용 분배형 연료분사 펌프의 내부에 설치되며, 연료유를 연료탱크에서 인젝션 펌프내로 공급해 주는 장치로서 도 1 의 도시와 같이, 베인홈(1)(1')이 형성된 로터(2)가 구동축(3)에 결합되고, 그 주면에 로터(2)의 중심과 편심되게 결합된 링(4)의 사이에 베인홈(1)(1')에 삽입된 베인(5)(5')에 의해 4개로 구분된 방을 만들어, 로터(2)를 회전시키므로서 베인(5)(5')에 의해 구분된 각 공간의 용적이 변화되면서 연료 흡입구(6)로 흡입된 연료가 연료 토출구(7)로 가압토출되게 구성되어 있다.The vane feed pump is installed inside a distribution type fuel injection pump for a diesel engine, and is a device for supplying fuel oil from a fuel tank into an injection pump, as shown in FIG. 1, in which vane grooves 1 and 1 'are formed. Rotor 2 is coupled to drive shaft 3, and vanes 5 inserted in vane grooves 1 and 1 'between the ring 4 coupled eccentrically to the center of rotor 2 on its main surface. The fuel sucked into the fuel inlet 6 while the volume of each space divided by the vanes 5 and 5 'is changed while the rotor 2 is rotated by creating a room divided into four by 5'. Is pressurized to the fuel discharge port 7.

전기한 피드펌프는 회전에 의해 용적이 작아지는 토출구의 압력이 10㎏/㎠ 미만에서는 베인의 회전에 의한 원심력이 충분하여 베인이 링의 내주면에 밀착하여 정상적으로 작동되나, 토출구측 압력이 상승하면서 베인의 원심력을 넘어서게 되면, 도 2 의 도시와 같이 그 토출압의 저항에 의해 베인이 링의 내주면에 밀착하지 못한 상태로 회전하게 되며, 비정상적으로 작동되어 압력의 불균형을 이루게 된다.When the pressure of the discharge port is smaller than 10㎏ / ㎠, the centrifugal force due to the rotation of the vane is sufficient and the vane is in close contact with the inner circumferential surface of the ring. When the centrifugal force is exceeded, the vane rotates in a state in which the vane is not in close contact with the inner circumferential surface of the ring due to the resistance of the discharge pressure, as shown in FIG.

본 발명은 베인용 피드펌프에 있어서, 이러한 문제점을 제거코저 토출구측에 발생되는 압력을 베인홈에도 작용되게 하여 압력이 아무리 상승하더라도 베인의 내외에 균압이 이루어지게한 피드펌프를 제공함에 발명의 목적이 있다.The present invention is to provide a feed pump for the vane feed pump, which eliminates such a problem, the pressure generated on the discharge outlet side also acts on the vane groove, so that even if the pressure rises, the pressure is equalized in and out of the vane. There is this.

도 1 은 피드펌프의 구성도1 is a configuration diagram of a feed pump

도 2 는 종래 피드펌프의 비정상 작동시의 상세설명도Figure 2 is a detailed description of the abnormal operation of the conventional feed pump

도 3 은 본 발명 피드펌프의 전체 설명도Figure 3 is an overall explanatory view of the feed pump

도 4 는 본 발명 베인 부분의 상세설명도Figure 4 is a detailed view of the vane portion of the present invention

＜도면의 주요부분에 대한 부호의 설명＞<Description of the code | symbol about the principal part of drawing>

1, 1' : 베인홈 1a : 베인홈의 저면내측부1, 1 ': vane groove 1a: inside of the bottom of the vane groove

2 : 로터 3 : 구동축2: rotor 3: drive shaft

4 : 링 5, 5' : 베인4: ring 5, 5 ': vane

6 : 연료흡입구 7 : 연료토출구6: fuel inlet 7: fuel outlet

8 : 균압홀8: equalization hole

이하, 본 발명의 실시예를 첨부도면에 의하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail by the accompanying drawings.

도 3 은 본 발명에 의한 피드펌프의 전체 설명도이고, 도 4 는 그 베인부분의 상세설명도이다.3 is an overall explanatory view of a feed pump according to the present invention, Figure 4 is a detailed explanatory view of the vane portion.

베인홈(1)(1')이 형성된 로터(2)가 구동축(3)에 결합되고, 그 주면에 로터(2)의 중심과 편심되게 결합된 링(4)의 사이에 베인홈(1)(1')에 삽입된 베인(5)(5')에 의해 4개로 구분된 방이 구성되고, 그 링(4)의 내측면에 연료흡입구(6)와 연료토출구(7)가 구성된 피드펌프에 있어서, 각 베인홈(1)(1')의 저면내측부(1a)와 베인의 진행방향측의 로터주면을 연결하는 균압홀(8)을 형성한 것이다.The rotor 2 having the vane grooves 1 and 1 'is coupled to the drive shaft 3, and the vane groove 1 between the ring 4 coupled eccentrically to the center of the rotor 2 on its main surface. The vane (5) (5 ') inserted into the (1') comprises a chamber divided into four, the inner side of the ring (4) to the feed pump consisting of the fuel inlet (6) and the fuel outlet (7) In this case, a pressure equalizing hole 8 is formed to connect the bottom inner side 1a of each vane groove 1, 1 'and the rotor main surface on the traveling direction side of the vane.

이와 같이 구성된 본 발명의 피드펌프는 그 구동축(3)이 회전하면서 회전하는 로터(2)의 베인홈(1)(1')에 삽입된 베인(5)(5')에 의해 구분된 4개의 방이 편심 결합된 로터(2)와 링(4)간의 간격차이에 의해 용적이 변화되면서 연료흡입구(6)로 흡입된 연료가 점차 가압되면서 연료토출구(7)를 통해서 토출되는 것이다.The feed pump of the present invention configured as described above is divided into four vanes 5 and 5 'inserted into the vane grooves 1 and 1' of the rotor 2 in which the drive shaft 3 rotates. As the volume is changed by the gap between the rotor 2 and the ring 4 in which the chamber is eccentrically coupled, the fuel sucked into the fuel inlet 6 is gradually pressurized and discharged through the fuel outlet 7.

이때 그 토출압이 베인(5)(5')의 원심력을 넘어서더라도 고압의 연료 토출압이 베인(5)(5')의 진행방향측으로 형성된 균압홀(8)을 통해 베인홈(1)(1')의 저면내측부(1a)으로 유입되므로서 베인(1)(1')의 내외압이 균등한 압력을 이루게 되어 압력의 고저에 상관없이 베인(5)(5')이 그 원심력에 의해 링(4)의 내주면에 밀착되므로서 균일한 가압 회전이 가능한 것이다.At this time, even if the discharge pressure exceeds the centrifugal force of the vanes 5, 5 ', the high-pressure fuel discharge pressure passes through the equalization hole 8 formed toward the traveling direction side of the vanes 5, 5'. The internal and external pressures of the vanes 1, 1 'are equalized as they flow into the bottom inner side 1a of 1') and the vanes 5, 5 'are driven by the centrifugal force regardless of the height of the pressure. By being in close contact with the inner circumferential surface of the ring 4 it is possible to uniform pressure rotation.

이상과 같이 본 발명의 피드펌프는 그 로터구조를 개선하므로서 피드펌프의 작동시 압력이 상승하더라도 베인의 밀착력을 높혀 정상적인 작동이 이루어지게 하므로서 피드펌프의 비정상 작동 방지 및 개선의 효과가 있다.As described above, the feed pump of the present invention improves the rotor structure, thereby increasing the adhesion of the vanes even when the pressure of the feed pump increases, thereby preventing the abnormal operation of the feed pump and improving the feed pump.

Claims (1)

베인홈(1)(1')이 형성된 로터(2)가 구동축(3)에 결합되고, 그 주면에 로터(2)의 중심과 편심되게 결합된 링(4)의 사이에 베인홈(1)(1')에 삽입된 베인(5)(5')에 의해 4개로 구분된 방이 구성되고, 그 링(4)의 내측면에 연료흡입구(6)와 연료토출구(7)가 구성된 피드펌프에 있어서, 각 베인홈(1)(1')의 저면내측부(1a)와 베인의 진행방향측의 로터주면을 연결하는 균압홀(8)을 형성한 것을 특징으로 하는 베인용 피드펌프의 로터구조.The rotor 2 having the vane grooves 1 and 1 'is coupled to the drive shaft 3, and the vane groove 1 between the ring 4 coupled eccentrically to the center of the rotor 2 on its main surface. The vane (5) (5 ') inserted into the (1') comprises a chamber divided into four, the inner side of the ring (4) to the feed pump consisting of the fuel inlet (6) and the fuel outlet (7) The rotor structure of a vane feed pump according to claim 1, wherein a pressure equalizing hole (8) is formed to connect a bottom inner side (1a) of each vane groove (1) (1 ') and a rotor main surface of the vane in a traveling direction side.
KR1019990047715A 1999-10-30 1999-10-30 Rotor structure of feed pump for vane KR20010039353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019990047715A KR20010039353A (en) 1999-10-30 1999-10-30 Rotor structure of feed pump for vane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019990047715A KR20010039353A (en) 1999-10-30 1999-10-30 Rotor structure of feed pump for vane

Publications (1)

Publication Number Publication Date
KR20010039353A true KR20010039353A (en) 2001-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019990047715A KR20010039353A (en) 1999-10-30 1999-10-30 Rotor structure of feed pump for vane

Country Status (1)

Country Link
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