KR100427077B1 - Apparatus of oil pump - Google Patents
Apparatus of oil pump Download PDFInfo
- Publication number
- KR100427077B1 KR100427077B1 KR10-2001-0062101A KR20010062101A KR100427077B1 KR 100427077 B1 KR100427077 B1 KR 100427077B1 KR 20010062101 A KR20010062101 A KR 20010062101A KR 100427077 B1 KR100427077 B1 KR 100427077B1
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- South Korea
- Prior art keywords
- oil pump
- gear
- internal gear
- increase
- external gear
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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
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
본 발명은 오일펌프 구조에 관한 것으로서,The present invention relates to an oil pump structure,
종래의 오일펌프구조는 외접기어와 내접기어가 모두 속이 꽉찬 형태로서 형성되기 때문에 오일펌프의 펌핑용량 증대를 위해 내접기어의 폭을 넓히게되면, 그에따른 오일펌프의 펌핑용량 증대의 효과를 기대할 수 있지만 내접기어의 폭이 넓어진 만큼 내접기어와 외접기어 간의 마찰력이 증가할 뿐만 아니라 전체적인 중량이 증가함에 따라 엔진에는 큰 부하로서 작용하게되어 엔진의 출력감소 및 연비악화를 초래하게되는 문제점이 발생하고 있었다.In the conventional oil pump structure, since both the external gear and the internal gear are formed in a solid shape, when the width of the internal gear is increased to increase the pumping capacity of the oil pump, the pumping capacity of the oil pump can be expected to increase accordingly. As the width of the internal gear was wider, the frictional force between the internal gear and the external gear increased, and as the overall weight increased, the engine acted as a large load, resulting in a decrease in engine output and fuel consumption.
따라서, 상기 문제점을 해결하기 위한 본 발명은 서로 맞물려 회전하면서 유체를 펌핑하는 내접기어와 외접기어에 중공부를 형성하여 기어의 중량이 감소되도록 하므로서, 오일펌프의 펌핑용량을 증가시키기 위해 내접기어와 외접기어의 폭을 증가시키더라도 전체적인 오일펌프의 중량이 크게 증가하지 않을 뿐만 아니라 기어간의 마찰력 또한 증가하지 않게되어 엔진에 큰 부하로서 작용하지 않도록 한 오일펌프 구조에 관한 것이다.Accordingly, the present invention for solving the above problems is to form a hollow portion in the internal gear and the external gear for pumping fluid while rotating in engagement with each other to reduce the weight of the gear, so as to increase the pumping capacity of the oil pump and the external gear Increasing the width of the gear does not significantly increase the weight of the overall oil pump as well as does not increase the friction between the gears relates to an oil pump structure that does not act as a large load on the engine.
Description
본 발명은 오일펌프 구조에 관한 것으로서, 특히 오일펌프의 펌핑용량을 증가시키기 위해 내접기어와 외접기어의 폭을 증가시키더라도 전체적인 오일펌프의 중량이 크게 증가하지 않을 뿐만 아니라 기어간의 마찰력 또한 증가하지 않게되어 엔진에 큰 부하로서 작용하지 않도록 한 오일펌프 구조에 관한 것이다.The present invention relates to an oil pump structure, and in particular, even if the width of the internal gear and the external gear is increased to increase the pumping capacity of the oil pump, not only does the weight of the overall oil pump increase significantly but also the friction force between the gears does not increase. The present invention relates to an oil pump structure in which the engine does not act as a large load on the engine.
일반적으로 오일펌프라 함은 엔진 구동시 연동회전하여 오일팬에 저장되어있는 오일을 엔진의 각 마찰부품으로 강제 이송시켜 윤활되도록 하는 것으로, 이러한 오일펌프의 용량이 엔진의 출력에 비해 작게되면 엔진의 각 마찰부품으로 공급되는 오일의 양이 부족하게되어 각 마찰부품이 쉽게 마모되어 파손되는 문제점이 발생하게 된다.In general, the oil pump frame is lubricated by forcibly rotating and driving oil stored in the oil pan to each friction part of the engine when the engine is driven. When the capacity of the oil pump is smaller than the output of the engine, Since the amount of oil supplied to each friction part is insufficient, each friction part is easily worn and a problem occurs.
도 1 과 도 2 는 종래 오일펌프구조를 도시한 것으로서,1 and 2 show a conventional oil pump structure,
외접기어(2)의 내부에 내접기어(1)가 편심되게 결합되어 내접기어(1)와 외접기어(2)에 의해 맞물리는 부분에 형성되는 압축영역(3)을 통해 오일을 압축 이송하게된다.The internal gear 1 is eccentrically coupled to the inside of the external gear 2 so that the oil is compressed and conveyed through the compression region 3 formed at the portion engaged by the internal gear 1 and the external gear 2. .
이러한 오일펌프의 펌핑용량은 내접기어와 외접기어의 폭에 의해 결정되는데, 일반적으로 내접기어의 폭을 1mm 증가시킴에 따라 오일펌프의 펌핑용량은 10% 정도 향상되는 것으로 알려져 있다.The pumping capacity of such an oil pump is determined by the widths of the internal gear and the external gear. In general, as the width of the internal gear increases by 1 mm, the pumping capacity of the oil pump is known to be improved by about 10%.
오일펌프의 펌핑용량을 설정할때에는 엔진의 각 마찰부품에서 필요로 하는 오일의 양을 합산하고, 엔진웨어(Engine ware)에 의한 추가 오일요구량과 오일펌프 웨어(ware)에 의한 오일 펌프의 체적능률감소를 고려하여 오일펌프의 펌핑용량을 결정하게 된다.When setting the pumping capacity of the oil pump, the amount of oil required for each friction part of the engine is added, and the additional oil demand by the engine ware and the volume efficiency of the oil pump by the oil pump ware are reduced. In consideration of this, the pumping capacity of the oil pump is determined.
그러나, 종래의 오일펌프구조는 외접기어와 내접기어가 모두 속이 꽉찬 형태로서 형성되기 때문에 오일펌프의 펌핑용량 증대를 위해 내접기어의 폭을 넓히게되면, 그에따른 오일펌프의 펌핑용량 증대의 효과를 기대할 수 있지만 내접기어의 폭이 넓어진 만큼 내접기어와 외접기어 간의 마찰력이 증가할 뿐만 아니라 전체적인 중량이 증가함에 따라 엔진에는 큰 부하로서 작용하게되어 엔진의 출력감소 및 연비악화를 초래하게되는 문제점이 발생하고 있었다.However, in the conventional oil pump structure, since both the external gear and the internal gear are formed in a solid form, when the width of the internal gear is increased to increase the pumping capacity of the oil pump, the effect of increasing the pumping capacity of the oil pump is expected. However, as the width of the internal gear increases, the frictional force between the internal gear and the external gear increases, and as the overall weight increases, the engine acts as a heavy load, causing a decrease in engine output and fuel consumption. there was.
따라서, 상기 문제점을 해결하기 위한 본 발명은 서로 맞물려 회전하면서 유체를 펌핑하는 내접기어와 외접기어에 중공부를 형성하여 기어의 중량이 감소되도록 하므로서, 오일펌프의 펌핑용량을 증가시키기 위해 내접기어와 외접기어의 폭을 증가시키더라도 전체적인 오일펌프의 중량이 크게 증가하지 않을 뿐만 아니라 기어간의 마찰력 또한 증가하지 않게되어 엔진에 큰 부하로서 작용하지 않도록 한 오일펌프 구조를 제공함을 목적으로 한다.Accordingly, the present invention for solving the above problems is to form a hollow portion in the internal gear and the external gear for pumping fluid while rotating in engagement with each other to reduce the weight of the gear, so as to increase the pumping capacity of the oil pump and the external gear It is an object of the present invention to provide an oil pump structure in which the weight of the overall oil pump does not increase significantly even if the width of the gear is increased, and the friction force between the gears does not increase, so that the engine does not act as a heavy load.
상기 목적달성을 위한 본 발명은,The present invention for achieving the above object,
내접기어와 외접기어가 서로 맞물려 회전하면서 유체를 펌핑하는 오일펌프에 있어서,In the oil pump which pumps the fluid while the internal gear and the external gear mesh with each other and rotate,
상기 내접기어와 외접기어의 내부에 중공부를 형성하여 내접기어와 외접기어의 중량 감소를 꾀하여 내접기어의 치형크기를 보다 크게 형성할 수 있도록 한 것을 특징으로 한다.A hollow portion is formed in the internal gear and the external gear to reduce the weight of the internal gear and the external gear so that the tooth size of the internal gear can be made larger.
도 1 은 종래의 오일펌프 구조를 보인 단면도.1 is a cross-sectional view showing a conventional oil pump structure.
도 2 는 도 1 의 A-A선 단면도.2 is a cross-sectional view taken along the line A-A of FIG.
도 3 은 본 발명의 오일펌프 구조를 보인 단면도.Figure 3 is a cross-sectional view showing the oil pump structure of the present invention.
도 4 는 도 3 의 B-B선 단면도.4 is a cross-sectional view taken along the line B-B in FIG. 3.
※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing
10 : 내접기어 11 : 외접기어10: internal gear 11: external gear
12 : 압축영역 13 : 중공부12: compression area 13: hollow part
이하 첨부된 도면 도 3 내지 도 6 을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 3 to 6.
상기 도면에 의하면, 외접기어(11)의 내부에 편심되게 내접기어(10)가 가 형성되어 내접기어(10)와 외접기어(11)가 서로 맞물리면서 형성되는 압축영역(12)을 통해 유체가 압축 펌핑되도록 형성된다.According to the drawing, the internal gear 10 is formed eccentrically inside the external gear 11 so that the fluid is compressed through the compression region 12 formed by engaging the internal gear 10 and the external gear 11 with each other. It is formed to be pumped.
이때, 본 발명에서는 내접기어(10)와 외접기어(11)의 전체적인 중량을 감소시키기 위해 도 3 과 도 4 에 도시된 바와같이 그 내부에 중공부(13)를 형성한 것이다.At this time, in the present invention, to reduce the overall weight of the internal gear 10 and the external gear 11, as shown in Figures 3 and 4 to form a hollow portion 13 therein.
즉, 종래의 내접기어와 외접기어는 속이 꽉찬 형태로 형성한 것인데 반해 본 발명에서는 내접기어(10)와 외접기어(11)의 내부에 중공부(13)가 형성되도록 하여 기어(10)(11)의 무게가 감소되도록 하였다.That is, the conventional internal gear and the external gear is formed in a solid form, whereas in the present invention, the hollow part 13 is formed in the internal gear 10 and the external gear 11 so that the gears 10 and 11 are formed. ) To reduce the weight.
이와같이 내접기어(10)와 외접기어(11)에 중공부(13)를 형성하게되면, 그만큼 내접기어(10)와 외접기어(11)의 중량이 감소하게되므로서 내접기어(10)와 외접기어(11) 간의 마찰력이 감소하여 엔진에 전달되는 부하가 감소하게되고, 이에의해 엔진의 출력이 향상됨은 물론 연비가 개선되는 효과를 기대할 수 있게된다.As such, when the hollow portion 13 is formed in the internal gear 10 and the external gear 11, the weight of the internal gear 10 and the external gear 11 is reduced so that the internal gear 10 and the external gear 10 are reduced. The friction force between the (11) is reduced to reduce the load transmitted to the engine, thereby improving the output of the engine as well as the effect that can be expected to improve the fuel economy.
또한, 오일펌프의 펌핑용량을 증대시키기 위해 내접기어(10)의 폭을 넓히더라도 내접기어(10)의 중량이 크게 증가하지 않기 때문에 오일펌프의 펌핑용량을 효과적으로 증대시키면서도 엔진에 가해지는 부하는 크게 증가하지 않도록 한 것이다.In addition, since the weight of the internal gear 10 does not increase significantly even if the width of the internal gear 10 is increased to increase the pumping capacity of the oil pump, the load applied to the engine while effectively increasing the pumping capacity of the oil pump is greatly increased. It did not increase.
도 5 는 종래기술과 본 발명이 적용된 상태에서 엔진 회전수(RPM)와 소비마력(hp)의 관계를 도시한 것으로서,Figure 5 shows the relationship between the engine speed (RPM) and the horsepower (hp) in the state of the prior art and the present invention is applied,
본 발명과 같이 중공부를 형성했을때의 소비마력이 종래의 오일펌프에 비해 0.16~0.38hp 정도 낮게 나타남을 확인할 수 있다.When the hollow portion is formed as in the present invention, it can be seen that the horsepower consumed is about 0.16 to 0.38 hp lower than that of the conventional oil pump.
이는 본 발명의 오일펌프에 적용된 내접기어와 외접기어의 중량감소로 인해 상호간의 마찰력이 감소하게되면서 엔진에 가해지는 부하가 감소하게되어 오일펌프가 구동하면서 소비되는 소비마력이 그만큼 감소하게되는 것이다.This decreases the frictional force between the internal gear and the external gear applied to the oil pump of the present invention, thereby reducing the load on the engine, thereby reducing the horsepower consumed while driving the oil pump.
도 6 은 종래기술과 본 바명이 적용된 상태에서 엔진 회전수와 오일펌프의 토출량을 비교한 것으로서,Figure 6 is a comparison between the engine speed and the discharge amount of the oil pump in the state of the prior art and the present invention,
본 발명과같이 중공부를 형성했을때의 펌핑량이 엔진 회전수별 1.5~2.5L/min 만큼 증가함을 알 수 있다.When the hollow portion is formed as in the present invention, it can be seen that the amount of pumping increases by 1.5 to 2.5 L / min per engine speed.
상기 설명에서와 같은 본 발명에 의하면, 내접기어와 외접기어의 내부에 중공부를 형성하여 전체적인 중량이 감소되도록 하므로서, 내접기어와 외접기어의 마찰력 감소를 꾀하고, 이로인해 오일펌프의 용량증대를 위해 내접기어의 폭을 넓히더라도 내접기어의 중량 증가분이 그리 크지 않게되어 엔진의 성능향상 및 연비개선을 꾀할 수 있도록 하는 효과를 기대할 수 있다.According to the present invention as described above, by forming a hollow portion in the internal gear and the external gear to reduce the overall weight, thereby reducing the frictional force between the internal gear and the external gear, thereby increasing the capacity of the oil pump Even if the width of the internal gear is widened, the weight increase of the internal gear is not so large that the effect of improving the engine performance and fuel efficiency can be expected.
이상에서 설명한 바와같이 본 발명은 서로 맞물려 회전하면서 유체를 펌핑하는 내접기어와 외접기어에 중공부를 형성하여 기어의 중량이 감소되도록 하므로서, 오일펌프의 펌핑용량을 증가시키기 위해 내접기어와 외접기어의 폭을 증가시키더라도 전체적인 오일펌프의 중량이 크게 증가하지 않을 뿐만 아니라 기어간의 마찰력 또한 증가하지 않게되어 엔진에 큰 부하로서 작용하지 않도록 한 오일펌프 구조를 제공하는 효과를 기대할 수 있다.As described above, the present invention forms a hollow portion in the internal gear and the external gear for pumping the fluid while interlocking with each other to reduce the weight of the gear, thereby increasing the pumping capacity of the oil pump and the width of the internal gear and the external gear. Increasing the weight of the oil pump does not increase the weight of the overall oil pump as well as does not increase the friction between the gears can be expected to provide an oil pump structure that does not act as a large load on the engine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0062101A KR100427077B1 (en) | 2001-10-09 | 2001-10-09 | Apparatus of oil pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0062101A KR100427077B1 (en) | 2001-10-09 | 2001-10-09 | Apparatus of oil pump |
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| Publication Number | Publication Date |
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| KR20030030246A KR20030030246A (en) | 2003-04-18 |
| KR100427077B1 true KR100427077B1 (en) | 2004-04-17 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04105987U (en) * | 1991-02-26 | 1992-09-11 | 株式会社アツギユニシア | Internal gear oil pump |
| JPH10196559A (en) * | 1997-01-13 | 1998-07-31 | Jidosha Buhin Kogyo Co Ltd | Oil pump |
| KR20000062610A (en) * | 1999-03-26 | 2000-10-25 | 베른하트 뷔스트 | sickless internal gear wheel pump with sealing elements inserted into the tooth tips |
-
2001
- 2001-10-09 KR KR10-2001-0062101A patent/KR100427077B1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04105987U (en) * | 1991-02-26 | 1992-09-11 | 株式会社アツギユニシア | Internal gear oil pump |
| JPH10196559A (en) * | 1997-01-13 | 1998-07-31 | Jidosha Buhin Kogyo Co Ltd | Oil pump |
| KR20000062610A (en) * | 1999-03-26 | 2000-10-25 | 베른하트 뷔스트 | sickless internal gear wheel pump with sealing elements inserted into the tooth tips |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030030246A (en) | 2003-04-18 |
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| A201 | Request for examination | ||
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| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| LAPS | Lapse due to unpaid annual fee |