KR100412606B1 - Balance keeping apparatus of crank shaft - Google Patents
Balance keeping apparatus of crank shaft Download PDFInfo
- Publication number
- KR100412606B1 KR100412606B1 KR10-2001-0063581A KR20010063581A KR100412606B1 KR 100412606 B1 KR100412606 B1 KR 100412606B1 KR 20010063581 A KR20010063581 A KR 20010063581A KR 100412606 B1 KR100412606 B1 KR 100412606B1
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- South Korea
- Prior art keywords
- engine
- speed operation
- oil inflow
- oil
- balancing weight
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/20—Shape of crankshafts or eccentric-shafts having regard to balancing
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/14—Features relating to lubrication
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/16—Features relating to cooling
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
- F16F15/283—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same for engine crankshafts
- F16F15/286—Adjustable weights
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
본 발명의 목적은 엔진의 저속 운전시에는 밸런싱 웨이트의 관성 질량을 작게 만들어 시동성을 향상시키고, 엔진의 고속 운전시에는 밸런싱 웨이트의 관성 질량을 증가시켜 밸런스를 유지하므로 진동 및 소음을 감소시킬 수 있는 엔진의 회전속도에 따라 관성력이 가변되는 크랭크축의 밸런스 유지 장치를 제공하는데 있다An object of the present invention is to reduce the inertial mass of the balancing weight during low speed operation of the engine to improve startability, while maintaining the balance by increasing the inertial mass of the balancing weight during high speed operation of the engine can reduce vibration and noise To provide a crankshaft balance maintaining device in which the inertia force varies depending on the rotational speed of the engine.
이를 위해 본 발명은 크랭크저널과 크랭크핀, 크랭크암, 밸런싱 웨이트 및 크랭크축의 윤활과 냉각을 위해 형성되는 오일공급통로를 포함하는 크랭크축에 있어서,To this end, the present invention provides a crank shaft including a crank journal and a crank pin, a crank arm, a balancing weight, and an oil supply passage formed for lubrication and cooling of the crank shaft.
상기 밸런싱 웨이트의 외측에 형성되는 오일유입공간과;An oil inflow space formed outside of the balancing weight;
상기 오일유입공간과 오일공급통로를 연통하는 오일유입통로와;An oil inflow passage communicating the oil inflow space with the oil supply passage;
상기 오일유입통로의 도중에 설치되어, 원심력이 낮은 엔진의 저속 운전시에는 상기 오일유입통로를 차단하고, 엔진의 고속 운전시에는 원심력 작용방향으로 이동하여 오일유입통로를 개방하게 되는 웨이트 밸브와;A weight valve installed in the middle of the oil inflow passage to block the oil inflow passage during low speed operation of an engine having a low centrifugal force, and to move in the centrifugal force action direction during the high speed operation of the engine to open the oil inflow passage;
상기 웨이트 밸브를 원심력 작용 방향과 반대 방향으로 탄발하도록 지지하는 리턴스프링과;A return spring supporting the weight valve in a direction opposite to the centrifugal force action direction;
상기 오일유입공간과 외부를 연통하도록 밸런싱 웨이트의 외단부에 형성되어 저속 운전시엔 오일유입공간을 외부에 대해 개방하고, 고속 운전시엔 오일유입공간의 외부 연통을 차단하는 열팽창 밸브;로 구성되어 있다.It is formed on the outer end of the balancing weight so as to communicate the oil inlet space and the outside, and open the oil inlet space to the outside at low speed operation, the thermal expansion valve for blocking the external communication of the oil inlet space at high speed operation.
Description
본 발명은 엔진의 회전 속도에 따라 가변 관성력을 가지는 크랭크축의 밸런스 유지장치에 관한 것이다.The present invention relates to a balance maintaining device for a crankshaft having a variable inertia force in accordance with the rotational speed of the engine.
일반적으로 차량의 동력을 발생시켜 주는 엔진은 커넥팅로드를 매개로 크랭크축이 결합된 피스톤을 구비한 실린더블럭과, 이 실린더블럭의 상부로 결합되어 연소실의 일부를 형성하면서 밸브기구와 점화플러그등이 구비된 실린더헤드로 크게 구성되어져, 연소시 발생되는 폭발력에 의해 상기 피스톤이 직선왕복 운동을 주므로 연속적으로 동력을 발생시키게 된다.In general, an engine that generates power of a vehicle includes a cylinder block having a piston coupled to a crankshaft through a connecting rod, and a valve mechanism and a spark plug, which are coupled to an upper portion of the cylinder block to form part of a combustion chamber. It is composed of a large cylinder head provided, because the piston gives a linear reciprocating motion by the explosion force generated during combustion to generate power continuously.
여기서, 상기 크랭크축은 매인저널과, 이 메인저널에 편심된 오뚜기 형상으로 형성된 다수의 밸런스 웨이트 및 이 밸런스 웨이트들을 상단부위에서 서로 연결시켜 주는 핀저널로 구성되어져, 회전시 다수개의 피스톤을 각각 적절한 타이밍(Timing)으로 위로 상승시켜 주게 된다.Here, the crankshaft is composed of a main journal, a plurality of balance weights formed in an eccentric shape eccentric to the main journal, and a pin journal connecting the balance weights to each other at an upper end portion thereof, so that a plurality of pistons each rotate at an appropriate timing ( Timing up).
통상, 회전물체의 경우 중심을 기준으로 질량이 다를 경우 상/하 부위의 각 관성력이 다르게 되고, 이로 인해 회전시 균형을 유지하지 못하고 진동이 발생되는 현상으로 인해 차량용 크랭크축의 경우, 크랭크저널과 크랭크핀의 결합점과 무게중심의 질량차에 의한 하부관성력에 대한 상부관성력의 비가 대략 0.6~0.7 정도를 갖게 되므로, 전체적인 비를 1에 접근시키도록 별도의 밸런스 웨이트를 사용하여 회전시 발생되는 불균형을 방지하여 진동을 감소시켜 주게 된다.In general, in the case of rotating objects, when the mass is different from the center, the inertia forces of the upper and lower parts are different, and thus, the crank journal and the crank for the crankshaft for the vehicle due to the phenomenon that vibrations are not maintained while maintaining balance during rotation. Since the ratio of the upper inertia force to the lower inertia force due to the difference between the mass of the pin and the center of gravity is about 0.6 to 0.7, use the separate balance weight to bring the overall ratio closer to 1. To reduce vibration.
이와같이 크랭크축(1)은 진동이 없이 원활하게 회전할 필요가 있으나 크랭크저널(3)의 중심과 크랭크핀(2)의 중심은 서로 편심되어 있기 때문에 그대로 회전시키면 밸런싱을 유지할 수 없기 때문에 도 3에 도시하는 것과 같이 크랭크암(15)에 밸런싱 웨이트(5)를 설치하여 회전 중에 밸런싱을 유지하도록 하고 있다.As such, the crankshaft 1 needs to rotate smoothly without vibration, but since the center of the crank journal 3 and the center of the crankpin 2 are eccentric with each other, the balance cannot be maintained when the cylinder is rotated as shown in FIG. 3. As shown in the figure, a balancing weight 5 is provided on the crank arm 15 so as to maintain balancing during rotation.
그러나, 상기와 같이 구성되고 작동되는 종래 크랭크축의 밸런싱 웨이트(5)는 일정한 크기로 크랭크 축(1)에 고정되어 있기 때문에 밸런싱 웨이트(5)가 너무크면 초기 시동시에는 스타트 모터의 회전력에 대해 저항력으로 작용하여 엔진 시동이 용이하지 않게 되고, 이를 해결하기 위해 스타트 모터의 용량이 커져야 되는 문제점이 있다.However, since the balancing weight 5 of the conventional crankshaft configured and operated as described above is fixed to the crankshaft 1 with a constant size, if the balancing weight 5 is too large, it is resistant to the rotational force of the start motor at initial startup. As a result, the engine is not easily started, and there is a problem that the capacity of the start motor must be increased to solve this problem.
반면, 밸런싱 웨이트의 크기가 작으면 엔진의 고속 회전시 엔진 회전이 불안정하게 되므로 진동 및 소음이 커지는 문제점이 있다.On the other hand, if the size of the balancing weight is small, the engine rotation becomes unstable at high speed of rotation of the engine, and thus there is a problem in that vibration and noise are increased.
이에 본 발명은 상기한 점을 감안하여 제안한 것으로서 그의 목적으로 하는 것은 엔진의 저속 운전시에는 밸런싱 웨이트의 관성 질량을 작게 만들어 시동성을향상시키고, 엔진의 고속 운전시에는 밸런싱 웨이트의 관성 질량을 증가시켜 밸런스를 유지하므로 진동 및 소음을 감소시킬 수 있는 엔진의 회전속도에 따라 관성력이 가변되는 크랭크축의 밸런스 유지 장치를 제공하는데 있다Accordingly, the present invention has been proposed in view of the above point, and its object is to reduce the inertial mass of the balancing weight during low speed operation of the engine to improve startability, and to increase the inertial mass of the balancing weight during high speed operation of the engine. It is to provide a balance maintaining device of the crankshaft whose inertial force is variable according to the rotational speed of the engine, which can reduce vibration and noise since the balance is maintained.
상기한 목적을 달성하기 위하여 본 발명은 크랭크저널과 크랭크핀, 크랭크암, 밸런싱 웨이트 및 크랭크축의 윤활과 냉각을 위해 형성되는 오일공급통로를 포함하는 크랭크축에 있어서,In order to achieve the above object, the present invention provides a crank shaft including a crank journal, a crank pin, a crank arm, a balancing weight, and an oil supply passage formed for lubrication and cooling of the crank shaft.
상기 밸런싱 웨이트의 외측에 형성되는 오일유입공간과;An oil inflow space formed outside of the balancing weight;
상기 오일유입공간과 오일공급통로를 연통하는 오일유입통로와;An oil inflow passage communicating the oil inflow space with the oil supply passage;
상기 오일유입통로의 도중에 설치되어, 원심력이 낮은 엔진의 저속 운전시에는 상기 오일유입통로를 차단하고, 엔진의 고속 운전시에는 원심력 작용방향으로 이동하여 오일유입통로를 개방하게 되는 웨이트 밸브와;A weight valve installed in the middle of the oil inflow passage to block the oil inflow passage during low speed operation of an engine having a low centrifugal force, and to move in the centrifugal force action direction during the high speed operation of the engine to open the oil inflow passage;
상기 웨이트 밸브를 원심력 작용 방향과 반대 방향으로 탄발하도록 지지하는리턴스프링과;A return spring for supporting the weight valve in a direction opposite to the direction of centrifugal force action;
상기 오일유입공간과 외부를 연통하도록 밸런싱 웨이트의 외단부에 형성되어 저속 운전시엔 오일유입공간을 외부에 대해 개방하고, 고속 운전시엔 오일유입공간의 외부 연통을 차단하는 열팽창 밸브;로 구성되어 있다.It is formed on the outer end of the balancing weight so as to communicate the oil inlet space and the outside, and open the oil inlet space to the outside at low speed operation, the thermal expansion valve for blocking the external communication of the oil inlet space at high speed operation.
도 1은 본 발명에 의한 엔진의 회전 속도에 따라 가변 관성력을 가지는 크랭크축의 밸런스 유지 장치의 엔진 저속 운전시의 작동 상태를 나타내는 도면BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing an operating state during engine low speed operation of a crankshaft balance maintaining apparatus having a variable inertia force according to the rotational speed of an engine according to the present invention.
도 2는 동상 크랭크축의 밸런스 유지 장치의 엔진 고속 운전시의 작동 상태를 나타내는 도면Fig. 2 is a diagram showing an operating state during engine high speed operation of the balance maintaining apparatus of the in-phase crankshaft;
도 3은 종래기술3 is a prior art
※ 도면의 주요 부분에 대한 부호의 설명※ Explanation of codes for main parts of drawing
1 : 크랭크축 2 : 크랭크핀1: crankshaft 2: crankpin
3 : 크랭크저널 4 : 오일공급통로3: crank journal 4: oil supply passage
5 : 밸런싱 웨이트 6 : 오일유입공간5: Balancing weight 6: Oil inflow space
7 : 오일유입통로 8 : 웨이트 밸브7: Oil inflow passage 8: Weight valve
9 : 리턴 스프링 10 : 연통공9: return spring 10: communication hole
11 : 밸브실 12 : 열팽창밸브11: valve chamber 12: thermal expansion valve
13 : 볼트 14 : 밸브공13: bolt 14: valve ball
이하 본 발명의 구성을 첨부한 도면을 참조하여 설명한다.Hereinafter, the configuration of the present invention will be described with reference to the accompanying drawings.
도 1은 본 발명에 의한 엔진의 회전속도에 따라 관성력이 가변되는 크랭크축의 밸런스 유지장치의 엔진 저속 운전시의 작동 상태를 나타내는 도면이고, 도 2는 동상 크랭크축의 밸런스 유지장치의 엔진 고속 운전시의 작동상태를 나타내는 도면이다.1 is a view showing an operating state during engine low speed operation of the crankshaft balance maintaining device whose inertial force is variable according to the rotational speed of the engine according to the present invention, and FIG. It is a figure which shows an operation state.
도면중 부호 1은 크랭크축이며, 부호 2는 크랭크핀이고, 부호 3은 크랭크저널, 그리고 부호 4는 오일공급통로이고 부호 5는 밸런싱 웨이트이다.In the drawing, reference numeral 1 is a crankshaft, numeral 2 is a crank pin, numeral 3 is a crank journal, numeral 4 is an oil supply passage and numeral 5 is a balancing weight.
크랭크핀(2)으로부터 가장 먼 밸런싱웨이트(5)의 외측단의 몸체내에는 오일을 수용할 수 있는 빈 공간인 오일유입공간(6)이 형성되고, 그 오일유입공간(6)은 오일유입통로(7)를 통해 상기 오일공급통로(4)에 연통하고 있다.In the body of the outer end of the balancing weight 5 furthest from the crank pin 2, an oil inflow space 6, which is an empty space for accommodating oil, is formed, and the oil inflow space 6 is an oil inflow passage. Communication with the oil supply passage 4 is made through (7).
그리고 상기 오일유입통로(7)의 도중에는 중량의 원통형의 웨이트 밸브(8)가원심력 작용방향으로 이동이 가능하게 장착되어 있으며, 그 웨이트밸브(8)는 원심력과 반대방향으로 힘을 가하는 리턴스프링(9)에 의해 탄력적으로 지지되고 있다.In the middle of the oil inflow passage 7, a weight cylindrical weight valve 8 is mounted to be movable in the direction of the centrifugal force, and the weight valve 8 is a return spring that exerts a force in a direction opposite to the centrifugal force. It is elastically supported by 9).
이 때문에 상기 오일유입통로(7)의 웨이트밸브(8)의 설치 부위는 통로가 절곡되어 웨이트밸브(8)가 리턴스프링(9)을 압축하면서 바깥쪽으로 이동하게 되면 개방되어지게 되는 것이다.For this reason, the installation portion of the weight valve 8 of the oil inflow passage 7 is opened when the passage is bent and the weight valve 8 moves outward while compressing the return spring 9.
한편, 오일유입공간(6)의 바깥쪽인 밸런성웨이트(8)의 외단부(5a)에는 오일유입공간(6)과 외부(크랭크케이스내의 공간)를 연통하는 연통공(10)이 형성되고, 그 연통공(10)의 도중에 마련된 밸브실(11)내에 열팽창 물질인 왁스체로 구성되는 열팽창 밸브(12)가 수용되어 있으며, 열팽창 밸브(12)의 일측은 볼트(13)등에 의해 구속되어 있고, 그의 자유단은 밸브실(11)내의 여분의 공간 범위내에서 신축이 자유롭다.On the other hand, the outer end portion 5a of the balancing weight 8, which is the outer side of the oil inflow space 6, has a communication hole 10 communicating with the oil inflow space 6 and the outside (space in the crankcase), In the valve chamber 11 provided in the middle of the communication hole 10, a thermal expansion valve 12 made of a wax body, which is a thermal expansion material, is accommodated. One side of the thermal expansion valve 12 is constrained by a bolt 13 or the like. , Its free end is free to expand and contract within the spare space in the valve chamber 11.
그리고 상기 열팽창 밸브(12)의 밸브공(14)은 엔진의 저속 운전시에는 낮은 크랭크케이스내의 온도에 반응하여 열팽창 밸브(12)가 수축하였을 때 상기 연통공(10)과 일치되며, 고온의 온도시 열팽창을 일으켰을 때는 연통공(10)과 어긋나게 되어 있다.In addition, the valve hole 14 of the thermal expansion valve 12 coincides with the communication hole 10 when the thermal expansion valve 12 contracts in response to a temperature in a low crankcase during the low speed operation of the engine. When the thermal expansion occurs, it is shifted from the communication hole (10).
이하 본 발명의 장치에 의한 작동 과정을 설명한다.Hereinafter, the operation process by the apparatus of the present invention will be described.
엔진이 저속 운전되면 밸런싱 웨이트(5)의 웨이트밸브(8)에 작용하는 원심력이 리턴스프링(9)의 탄성력보다 작아서 웨이트밸브(8)는 크랭크핀(2)측 방향으로 밀려 오일유입통로(7)를 차단하여 오일공급통로(4)로 급송되는 오일이 오일유입공간(6)으로 유입되지 않게 된다.When the engine is operated at low speed, the centrifugal force acting on the weight valve 8 of the balancing weight 5 is smaller than the elastic force of the return spring 9 so that the weight valve 8 is pushed toward the crank pin 2 side so that the oil inflow passage 7 ), The oil supplied to the oil supply passage 4 is not introduced into the oil inlet space (6).
그런데 이와 동시에 엔진이 저속 구동되면 엔진으로부터의 발산열도 적어지고 크랭크케이스내의 온도가 낮아지게 되므로 열팽창밸브(12)는 수축하여 밸브공(14)이 연통공(10)과 일치하게 된다(도 1 참조).At the same time, when the engine is driven at a low speed, the heat of divergence from the engine is reduced and the temperature in the crankcase is lowered, so that the thermal expansion valve 12 contracts so that the valve hole 14 coincides with the communication hole 10 (see FIG. 1). ).
이와같이 되면 오일유입공간(6)내에 들어있던 오일이 원심력에 의해 크랭크케이스내로 빠져나가 빈 공간이 되므로써 불평형 질량이 감소되어지게 되는 것이며, 이에따라 저속에서의 동력 손실을 저감하고 시동성을 향상하게 되는 것이다.In this case, the oil contained in the oil inflow space 6 is released into the crankcase by the centrifugal force and becomes an empty space, thereby reducing the unbalanced mass, thereby reducing power loss at low speeds and improving startability.
한편, 엔진이 고속으로 운전되면 웨이트밸브(8)에 작용하는 원심력이 리턴스프링(9)의 탄성력보다 커져 리턴스프링(9)을 압축하면서 원심력 방향으로 이동하여 오일유입통로(7)를 개방하게 되며, 오일이 오일유입공간(6)으로 밀려들어 채워지게 된다.On the other hand, when the engine is operated at a high speed, the centrifugal force acting on the weight valve 8 becomes greater than the elastic force of the return spring 9 to move in the centrifugal force direction while compressing the return spring 9 to open the oil inflow passage 7. , Oil is pushed into the oil inlet space (6) to be filled.
이때 엔진의 고속 운전으로 오일의 온도가 높아지고 크랭크케이스내의 온도도 높아지게 되므로 이열에 반응하여 열팽창밸브(12)가 팽창하게 되므로써 밸브공(14)이 연통공(10)과 어긋나게 되어 오일유입공간(11)내에 유입되는 오일이 보존되어지게 되어 불평형 질량(관성질량)을 증가시키게 되는 것이다.At this time, since the temperature of the oil is increased by the high speed operation of the engine and the temperature in the crankcase is also increased, the thermal expansion valve 12 expands in response to this heat, so that the valve hole 14 is displaced from the communication hole 10 so that the oil inflow space 11 The oil flowing into the shell is preserved, increasing the unbalanced mass (inertial mass).
이에따라 고속에서 크랭크축의 밸런스를 유지할 수 있어 진동과 소음을 저감하게 되는 것이다.Accordingly, the balance of the crankshaft can be maintained at high speed, thereby reducing vibration and noise.
이상과 같은 본 발명은 크랭크축의 밸런스 유지를 위한 밸런싱 웨이트내에 공간을 형성하고, 그 공간에 엔진의 고속 운전시에는 오일이 충진되도록 하여 불평형 질량을 증가시키고, 엔진의 저속 운전시에는 오일이 크렝크케이스로 배출시켜빈 공간으로 만들어 불평형 질량을 감소시키므로써 저속에서의 동력 소모를 저감하고 엔진 시동시 시동성을 향상시키게 되는 효과가 있다.The present invention as described above forms a space in the balancing weight for maintaining the balance of the crankshaft, the oil is filled in the space during the high speed operation of the engine to increase the unbalanced mass, the oil crank during the low speed operation of the engine By discharging to the case to make the empty space to reduce the unbalanced mass has the effect of reducing the power consumption at low speed and improve the startability when starting the engine.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0063581A KR100412606B1 (en) | 2001-10-16 | 2001-10-16 | Balance keeping apparatus of crank shaft |
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-2001-0063581A KR100412606B1 (en) | 2001-10-16 | 2001-10-16 | Balance keeping apparatus of crank shaft |
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| KR20030031726A KR20030031726A (en) | 2003-04-23 |
| KR100412606B1 true KR100412606B1 (en) | 2003-12-31 |
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| KR10-2001-0063581A Expired - Fee Related KR100412606B1 (en) | 2001-10-16 | 2001-10-16 | Balance keeping apparatus of crank shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101142532B1 (en) | 2010-05-20 | 2012-05-07 | 쌍용자동차 주식회사 | crank shaft for automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108482096A (en) * | 2018-04-18 | 2018-09-04 | 王青林 | A kind of cluster engine with adaptive equalization component |
| CN108528194A (en) * | 2018-04-18 | 2018-09-14 | 王青林 | A kind of cluster engine |
| CN111322303B (en) * | 2020-03-12 | 2022-03-29 | 江苏松林汽车零部件有限公司 | Crankshaft for engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56160446A (en) * | 1980-05-16 | 1981-12-10 | Suzuki Motor Co Ltd | Crank balancer for engine |
| JPS6030841A (en) * | 1983-07-30 | 1985-02-16 | Shinsuke Takahashi | Moving device for center of gravity of crank of prime mover |
| JPS61218823A (en) * | 1985-03-26 | 1986-09-29 | Fuji Heavy Ind Ltd | Balancing structure of crank shaft |
| JPH074425A (en) * | 1991-05-31 | 1995-01-10 | Suzuki Motor Corp | Balancing structure for crankshaft |
| KR980002912A (en) * | 1996-06-20 | 1998-03-30 | 양재신 | Inertia Adjustable Crankshaft |
-
2001
- 2001-10-16 KR KR10-2001-0063581A patent/KR100412606B1/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56160446A (en) * | 1980-05-16 | 1981-12-10 | Suzuki Motor Co Ltd | Crank balancer for engine |
| JPS6030841A (en) * | 1983-07-30 | 1985-02-16 | Shinsuke Takahashi | Moving device for center of gravity of crank of prime mover |
| JPS61218823A (en) * | 1985-03-26 | 1986-09-29 | Fuji Heavy Ind Ltd | Balancing structure of crank shaft |
| JPH074425A (en) * | 1991-05-31 | 1995-01-10 | Suzuki Motor Corp | Balancing structure for crankshaft |
| KR980002912A (en) * | 1996-06-20 | 1998-03-30 | 양재신 | Inertia Adjustable Crankshaft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101142532B1 (en) | 2010-05-20 | 2012-05-07 | 쌍용자동차 주식회사 | crank shaft for automobile |
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