KR19980061158A - Motor oil steering pump - Google Patents
Motor oil steering pump Download PDFInfo
- Publication number
- KR19980061158A KR19980061158A KR1019960080528A KR19960080528A KR19980061158A KR 19980061158 A KR19980061158 A KR 19980061158A KR 1019960080528 A KR1019960080528 A KR 1019960080528A KR 19960080528 A KR19960080528 A KR 19960080528A KR 19980061158 A KR19980061158 A KR 19980061158A
- Authority
- KR
- South Korea
- Prior art keywords
- rotor
- vane
- oil pump
- vehicle speed
- power steering
- Prior art date
Links
Classifications
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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
- 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
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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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/08—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the rotational speed
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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
- F04C2240/00—Components
- F04C2240/20—Rotors
Abstract
본 발명에 의한 자동차의 동력조향용 오일펌프는, 엔진의 구동력을 받아 회전하는 펌프축에 삽입되어 회전하는 로터와, 상기 로터의 회전에 따른 원심력에 의해 캠링의 내벽과 접동되면서 흡입 및 토출작용을 하도록 슬릿내에서 슬라이드되는 베인이 구비된 자동차의 동력조향용 오일펌프에 있어서, 차속센서에서 감지된 차속에 따라 변화되는 전자력에 의해 상기 베인의 슬라이드량이 변화되어 토출되는 유량을 제어하도록 상기 로터에 전자석이 삽입된 것을 특징으로 하므로 본 발명은 상기 로터의 펌프축과 베인의 사이에 환형을 전자석을 설치하고 차속센서와 연결시킴으로써 동력조향의 보조력이 그다지 필요치 않은 차속에서 오일펌프의 흡입 및 토풀작용에 의한 소요동력을 저감시킬 수 있다.The oil pump for power steering of a motor vehicle according to the present invention is inserted into a rotating pump shaft by a driving force of an engine and rotates with the inner wall of the cam ring by a centrifugal force according to the rotation of the rotor while inhaling and discharging. In the oil power steering oil pump of a vehicle provided with a vane that slides in the slit so that the slide amount of the vane is changed by the electromagnetic force that is changed according to the vehicle speed detected by the vehicle speed sensor to control the flow rate discharged to the rotor The present invention is characterized in that the inserted between the pump shaft and the vane of the rotor, the electromagnet is installed and connected to the vehicle speed sensor to assist in the suction and pull action of the oil pump at the vehicle speed, which does not need the auxiliary power of the power steering. The power required can be reduced.
Description
본 발명은 자동차의 동력조향용 오일펌프에 관한 것이다.The present invention relates to an oil pump for power steering of an automobile.
일반적으로 자동차의 조향장치는 자동차의 진행방향을 임의로 바꾸기 위한 장치를 말하며, 운전자가 직접 조향조작을 하여 그 조작력을 전달하도록 조향휠, 조향축 및 컬럼등으로 이루어진 조작기구와, 조향축의 회전을 감지함으로써 조작력을 증대시킴과 동시에 조작기구의 운동방향을 바꾸도록 프레임에 고정된 기어기구와, 상기 기어기구의 움직임을 앞바퀴에 전달함과 동시에 좌우바퀴의 관계위치를 올바르게 유지하도록 피트먼암, 드래그 링크, 너클암 및 타이로드 등으로 이루어진 링크기구로 구성되어 있다.In general, a steering device of a vehicle refers to a device for arbitrarily changing a driving direction of a vehicle, and a steering mechanism consisting of a steering wheel, a steering shaft, and a column to detect a rotation of a steering shaft so that a driver may directly steer and transmit its operating force. By increasing the operating force and at the same time the gear mechanism fixed to the frame to change the direction of movement of the operating mechanism, the movement of the gear mechanism to the front wheel, and at the same time to correctly maintain the position of the left and right wheels Pitman arm, drag link, It consists of a link mechanism consisting of a knuckle arm and a tie rod.
도 1에 도시된 바와 같이, 대형자동차나 저압타이어를 사용한 경우에는 앞바퀴의 접지저항이 증대하므로 조향휠(1)의 조작력이 커지며, 신속한 조향조작을 할 수 없는 위험이 있다. 이와 같은 경우, 가볍고 신속한 조향조작의 요구에 대응하기 위하여 동력조향이 사용되고 있다. 동력조향은 조향장치의 도중에 배력장치인 동력실린더와 컨트롤밸브(도시안됨)를 기어박스(2)의 내부에 설치하여 조향휠(1)의 조작력을 그의 배력작용에 의해 경감시키는 것을 일반적으로 엔진의 오일펌프(3)를 구동하여 발생한 유압을 이용하여 작동시키고 있다.As shown in FIG. 1, when a large vehicle or a low pressure tire is used, the grounding resistance of the front wheel increases, so that the operating force of the steering wheel 1 increases, and there is a danger that rapid steering operation cannot be performed. In this case, power steering is used to meet the needs of light and quick steering operation. In power steering, the power cylinder and control valve (not shown), which are the power devices, are installed inside the gearbox 2 in the middle of the steering device to reduce the operating force of the steering wheel 1 by its power action. The oil pump 3 is operated to operate by using hydraulic pressure generated.
상기 오일펌프(3)는 도 2 내지 도 4에 도시된 바와 같이, 펌프보디(31)내에 엔진의 동력을 풀리(32)를 통해 전달받아 회전하는 펌프축(33)과, 상기 펌프축(33)에 기어맞춤되어 회전하는 로터(34)와, 상기 로터(34)의 외주면에 중심을 향해 방사상으로 다수개 형성된 슬릿(34a)내에 삽입되어 원심력에 의해 슬라이드되는 베인(35)과, 상기 로터(34)의 회전에 의해 베인(35)이 슬라이드되면서 타원형의 내주면에 흡입 및 토출공간(E)을 형성하도록 베인(35)의 외주면에 설치된 캠링(36)과, 상기 캠링(36)의 하단에 설치되어 엔진의 운전중 회전수 변동에 따른 동력 조향의 작동유량이 일정하게 되도록 유량을 제어하는 유량조정밸브(37)로 이루어져 있다.As shown in FIGS. 2 to 4, the oil pump 3 includes a pump shaft 33 which rotates by receiving power of an engine through a pulley 32 in the pump body 31 and the pump shaft 33. Rotor 34 geared to and rotated, vanes 35 inserted into a plurality of slits 34a radially formed toward the center on the outer circumferential surface of the rotor 34 and slid by centrifugal force, and the rotor ( The cam ring 36 installed on the outer circumferential surface of the vane 35 and the lower end of the cam ring 36 so as to form the suction and discharge spaces E on the inner circumferential surface of the elliptical shape while the vane 35 slides by the rotation of 34. It consists of a flow rate control valve 37 for controlling the flow rate so that the operating flow rate of the power steering according to the rotational speed change during the operation of the engine.
이와 같이 구성된 오일펌프는 타원형의 내벽을 가진 캠링(36)내에서 로터(34)가 회전하면, 상기 로터(34)의 슬릿(34a)내에 삽입된 베인(35)이 원심력에 의해 상기 캠링(36)의 내벽에 밀어 붙여져 접동되면서 흡입 및 토출공간의 용적을 증감시키며 펌프작용을 하게 된다.In the oil pump configured as described above, when the rotor 34 rotates in the cam ring 36 having an elliptical inner wall, the vane 35 inserted into the slit 34a of the rotor 34 is moved by the centrifugal force of the cam ring 36. It slides on the inner wall of the bar and slides to increase and decrease the volume of the suction and discharge spaces.
그러나, 상기한 바와 같은 종래의 자동차의 동력조향용 오일펌프는 엔진의 구동력을 받아 회전하는 로터에 의해 펌핑작용을 하여 동력조향되는 바, 자동차가 저속시에는 동력조향보조력이 많이 필요하나 동력조향보조력이 그다지 필요하지 않은 중, 고속시에도 상기 캠링(36)내의 흡입된 오일을 상기 베인(35)이 항상 회전하여 원심력에 의해 캠링(36)의 내벽과 접동되어 토출되기 때문에 오일펌프(3)의 소요 동력에 의한 엔진의 소요 동력이 증가하는 문제점이 있었다.However, the above-described conventional power steering oil pump of a motor vehicle is driven by a pumping action by a rotor that rotates in response to a driving force of an engine. Since the vane 35 is always rotated and the vane 35 is always rotated by the centrifugal force to discharge the sucked oil in the cam ring 36 even at a high speed, the assist pump is not necessary. There was a problem that the required power of the engine is increased by the required power.
따라서, 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로써, 본 발명의 목적은 오일펌프의 로터와 베인에 의해 토출되는 유량을 차속에 따라 조절하여 오일펌프의 동력저감에 따른 엔진의 동력을 향상시키는 자동차의 동력조향용 오일펌프를 제공하는데 있다.Therefore, the present invention has been made to solve the above problems, an object of the present invention is to adjust the flow rate discharged by the rotor and vane of the oil pump according to the vehicle speed to reduce the power of the engine according to the power of the oil pump The present invention provides an oil pump for power steering of a vehicle.
상기와 같은 목적을 실현하기 위하여 본 발명에 의한 자동차의 동력조향용 오일펌프는 엔진의 구동력을 받아 회전하는 펌프축에 삽입되어 회전하는 로터와, 상기 로터의 회전에 따른 원심력에 의해 캠링의 내벽과 접동되면서 흡입 및 토출작용을 하도록 슬릿내에서 슬라이드되는 베인이 구비된 자동차의 동력조향용 오일펌프에 있어서, 차속센서에서 감지된 차속에 따라 변화되는 전자력에 의해 상기 베인의 슬라이드량이 변화되어 토출되는 유량을 제어하도록 상기 로터에 전자석이 삽입된 것을 특징으로 한다.In order to achieve the above object, an oil pump for power steering of an automobile according to the present invention is inserted into a rotating pump shaft by a driving force of an engine and rotates, and an inner wall of the cam ring by a centrifugal force according to the rotation of the rotor. In a power steering oil pump of a vehicle equipped with vanes that slide in a slit for sliding and suction and sliding, a flow rate in which the vane slide amount is changed by an electromagnetic force changed according to a vehicle speed detected by a vehicle speed sensor It characterized in that the electromagnet is inserted into the rotor to control the.
도 1 은 일반적인 자동차의 동력조향장치를 도시한 사시도,1 is a perspective view showing a power steering device of a typical vehicle;
도 2 는 자동차의 동력조향용 오일펌프를 도시한 종단면도,2 is a longitudinal sectional view showing an oil pump for power steering of a vehicle;
도 3 은 도 2의 A-A선에 따른 단면도,3 is a cross-sectional view taken along the line A-A of FIG.
도 4 는 종래의 오일펌프의 로터와 베인을 도시한 분해사시도,4 is an exploded perspective view showing a rotor and vanes of a conventional oil pump;
도 5 는 본 발명에 의한 오일펌프의 로터를 도시한 사시도,5 is a perspective view showing a rotor of an oil pump according to the present invention;
도 6 은 본 발명에 의한 오일펌프의 로터를 도시한 종단면도이다.6 is a longitudinal sectional view showing the rotor of the oil pump according to the present invention.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
3 : 오일펌프34 : 로터3: oil pump 34: rotor
34a : 슬릿34b : 전자석34a: slit 34b: electromagnet
35 : 베인40 : 차속센서35: vane 40: vehicle speed sensor
50 : 액츄에이터50: Actuator
도 5는 본 발명에 의한 오일펌프의 로터를 도시한 사시도이고, 도 6은 본 발명에 의한 오일펌프의 로터를 도시한 종단면도를 나타낸 것이다.5 is a perspective view showing a rotor of the oil pump according to the present invention, Figure 6 is a longitudinal sectional view showing the rotor of the oil pump according to the present invention.
상기 로터(34)에는 차속센서(40)에서 감지된 차속에 따라 변화되는 전자력에 의해 베인(35)의 슬라이드량이 변화되어 토출되는 유량을 제어하도록 전자석(34b)이 삽입되어 있다.The rotor 34 has an electromagnet 34b inserted therein to control the flow rate of the vane 35 by changing the slide amount of the vane 35 due to the electromagnetic force that is changed according to the vehicle speed detected by the vehicle speed sensor 40.
상기 전자석(34a)은 상기 펌프축(33)과 상기 베인(35)의 사이에 환형으로 형성되어 있다.The electromagnet 34a is formed in an annular shape between the pump shaft 33 and the vane 35.
상기 전자석(34b)에는 상기 베인(35)의 슬라이드량을 차속에 따라 조절하는 액츄에이터(50)가 연결되어 있다.An actuator 50 is connected to the electromagnet 34b to adjust the slide amount of the vane 35 according to the vehicle speed.
다음에, 본 발명의 작용에 대하여 설명한다.Next, the operation of the present invention will be described.
타원형의 내벽을 가진 캠링(36)내에서 로터(34)가 회전하면, 상기 로터(34)의 슬릿(34a)내에 삽입된 베인(35)이 원심력에 의해 상기 캠링(36)의 내벽에 밀어 붙여져 접동되면서 흡입 및 토출공간의 용적을 증감시키며 펌프작용을 하게 된다.When the rotor 34 rotates in the cam ring 36 having an elliptical inner wall, the vanes 35 inserted into the slit 34a of the rotor 34 are pushed against the inner wall of the cam ring 36 by centrifugal force. As it slides, it increases and decreases the volume of the suction and discharge space and acts as a pump.
이때, 차속이 차속센서(40)에 의해 감지되고, 상기 차속센서(40)와 연결된 액츄에이터(50)에 의해 상기 로터(34)에 삽입된 전자석(34b)에 자력이 형성되고 이 자력에 따라 로터(34)의 슬릿(34a)내에 삽입된 베인(35)의 슬라이드량을 조절하여 토출되는 유량을 조절하게 된다.At this time, the vehicle speed is sensed by the vehicle speed sensor 40, the magnetic force is formed in the electromagnet 34b inserted into the rotor 34 by the actuator 50 connected to the vehicle speed sensor 40 and the rotor according to the magnetic force The amount of discharge discharged is controlled by adjusting the slide amount of the vane 35 inserted into the slit 34a of the head 34.
이와 같이, 동력조향의 보조력이 그다지 필요치 않은 차속에서는 베인(35)이 상기 캠링(36)의 내벽과 접동되어 토출되는 유량을 적게 함으로써 불필요한 동력의 소요를 저감시키는 것이다.As described above, in the vehicle speed where the assist force of the power steering is not necessary, the vane 35 slides with the inner wall of the cam ring 36 to reduce the discharge rate, thereby reducing unnecessary power consumption.
앞에서 설명한 바와 같이, 본 발명에 의한 자동차의 동력조향용 오일펌프에 의하면, 상기 로터의 펄프축과 베인의 사이에 환형을 전자석을 설치하고 차속센서와 연결시킴으로써 동력조향의 보조력이 그다지 필요치 않은 차속에서 오일펌프의 흡입 및 토출작용에 의한 소요동력을 저감시킬 수 있다.As described above, according to the oil pump for power steering of an automobile according to the present invention, by installing an annular electromagnet between the pulp shaft and the vane of the rotor and connecting with the vehicle speed sensor, the vehicle steering power of the power steering is not necessary. It can reduce the power required by the suction and discharge action of the oil pump.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960080528A KR100217684B1 (en) | 1996-12-31 | 1996-12-31 | An oil pump for power steering |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960080528A KR100217684B1 (en) | 1996-12-31 | 1996-12-31 | An oil pump for power steering |
Publications (2)
Publication Number | Publication Date |
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KR19980061158A true KR19980061158A (en) | 1998-10-07 |
KR100217684B1 KR100217684B1 (en) | 1999-09-01 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019960080528A KR100217684B1 (en) | 1996-12-31 | 1996-12-31 | An oil pump for power steering |
Country Status (1)
Country | Link |
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KR (1) | KR100217684B1 (en) |
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1996
- 1996-12-31 KR KR1019960080528A patent/KR100217684B1/en not_active IP Right Cessation
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