KR100405694B1 - Oil pump for vehicles - Google Patents

Oil pump for vehicles Download PDF

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Publication number
KR100405694B1
KR100405694B1 KR10-2000-0081875A KR20000081875A KR100405694B1 KR 100405694 B1 KR100405694 B1 KR 100405694B1 KR 20000081875 A KR20000081875 A KR 20000081875A KR 100405694 B1 KR100405694 B1 KR 100405694B1
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South Korea
Prior art keywords
oil
oil pump
housing
engine
vehicle
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KR10-2000-0081875A
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Korean (ko)
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KR20020053109A (en
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한병혁
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현대자동차주식회사
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/02Conditioning lubricant for aiding engine starting, e.g. heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/02Pressure lubrication using lubricating pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

차량용 오일펌프(oil pump)가 개시된다. 개시된 차량용 오일펌프는, 하우징과; 상기 하우징의 일측에 형성되어 엔진 오일이 유입되도록 하는 유입유로와; 상기 유입유로를 통해 유입된 엔진 오일이 상기 하우징 쪽으로 유입되도록 상기 유입유로의 단부측에 설치된 입구단을 구비하는 차량용 오일펌프에 있어서, 상기 입구단의 일측에는 엔진 오일이 드레인되지 않도록 하는 오일드레인 방지부가 형성된 것을 그 특징으로 한다. 본 발명에 따르면, 시동 초기 펌핑 능력이 향상되고, 펌핑 능력 상실 또는 시간 지연으로 인한 엔진 전체의 손상을 예방할 수 있는 이점이 있다.An oil pump for a vehicle is disclosed. The disclosed vehicle oil pump includes a housing; An inflow passage formed at one side of the housing to allow engine oil to flow in; An oil pump for a vehicle having an inlet end installed on an end side of the inflow passage so that engine oil introduced through the inflow passage flows into the housing, wherein oil drain prevention prevents engine oil from being drained on one side of the inlet passage. It is characterized by the addition formed. According to the present invention, there is an advantage in that the starting initial pumping capability is improved, and damage to the entire engine due to the loss of the pumping capability or the time delay is prevented.

Description

차량용 오일펌프{OIL PUMP FOR VEHICLES}Automotive Oil Pump {OIL PUMP FOR VEHICLES}

본 발명은 차량용 오일펌프(oil pump)에 관한 것으로서, 보다 상세하게는 엔진 오일 드레인(engine oil drain)을 방지하여 시동 초기 펌핑 능력이 향상되도록 그 구조가 개선된 차량용 오일펌프에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle oil pump, and more particularly, to a vehicle oil pump whose structure is improved to prevent an engine oil drain and improve an initial starting pumping capability.

차량용 오일펌프는 크랭크축 또는 캠축에 의해 구동되어 오일팬(oil pan) 내의 엔진 오일을 흡입 및 가압하여 각 윤활부에 공급한다. 펌프의 능력은 송유량과 송유압력으로 표시한다.The vehicle oil pump is driven by a crank shaft or a cam shaft to suck and pressurize engine oil in an oil pan and supply it to each lubrication unit. The capacity of the pump is expressed in terms of oil supply and oil pressure.

그리고 시동시 엔진 오일의 흐름을 보면, 오일 스트레이너(oil strainer)에서 상기한 오일펌프로 유동되어 오일쿨러(oil cooler)로 유동하고, 다시 오일필터(oil filter) 및 메인 갤러리(main gallery)를 거쳐 엔진 각부로 송유된다.When the engine oil flows at the start-up, it is flowed from the oil strainer to the oil pump described above and flows to the oil cooler, and then through the oil filter and the main gallery. Oil is sent to each part of the engine.

도 1에는 상기한 오일펌프의 하우징이 개략적으로 도시되어 있다.1 schematically shows a housing of the oil pump described above.

도시된 바와 같이, 상기한 바와 같이, 오일펌프의 하우징(10)에는, 엔진 오일이 오일 스트레이너에서 메인 갤러리로 송유되기 위해 유로(11,12)가 형성되어 있고, 중앙의 일측에는 엔진 오일의 입구단(13)과 출구단(14)이 각각 형성되어 있다.As shown, as described above, in the housing 10 of the oil pump, flow paths 11 and 12 are formed to transfer engine oil from the oil strainer to the main gallery, and at one side of the center, an inlet of engine oil is provided. A stage 13 and an outlet stage 14 are formed, respectively.

그런데, 엔진의 초기 시동 및 장기간 방치후 시동시, 오일펌프는 오일 유면과 펌프기어 사이의 흡입수두를 이겨야 펌핑이 되는데, 하우징(10)과 펌프기어 사이의 틈새에 오일이 없으면 이 틈새가 완전한 실링(sealing)을 못하게 되어 펌핑 능력을 떨어뜨리게 되고, 유면과 펌프 사이의 에어도 역시 펌핑 능력을 저하시킨다.However, when the engine is initially started and left for a long time to start, the oil pump is pumped only after defeating the suction head between the oil level and the pump gear. This prevents sealing and lowers the pumping capacity, and the air between the oil surface and the pump also lowers the pumping capacity.

이와 같이 오일펌프의 펌핑이 원활히 이루어지지 않은 경우에는, 엔진 윤활 습동부 예컨대, 베어링, 유압 래시 어져스터(Hydraulic Lash Adjuster), 캠 캡 등의 스키핑, 소착, 과다 마모 등이 발생된다.When the pumping of the oil pump is not smoothly performed as described above, an engine lubrication sliding part such as a bearing, a hydraulic lash adjuster, a cam cap, or the like, skipping, crushing, excessive wear, or the like occurs.

특히, 밸브를 구동하는 상기 유압 래시 어져스터에 스펀지 현상 발생으로 연소가 불가능해져 운행이 불가능해지는 문제점을 초래한다. 그리고 차량의 생산 단계에서 오일 압력이 형성되지 않은 문제점을 야기한다.In particular, a sponge phenomenon occurs in the hydraulic lash adjuster that drives the valve, which causes a problem in that combustion is impossible and operation is impossible. And it causes a problem that the oil pressure is not formed in the production stage of the vehicle.

본 발명은 상기와 같은 문제점을 해결하기 위하여 창출된 것으로서, 오일펌프 내의 오일 드레인을 방지하여 시동 초기 펌핑 능력이 향상되도록 한 차량용 오일펌프를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, an object of the present invention is to provide an oil pump for a vehicle to prevent the oil drain in the oil pump to improve the initial pumping capability.

도 1은 일반적인 차량용 오일펌프의 하우징의 구성을 나타낸 개략적인 도면.1 is a schematic view showing the configuration of a housing of a general vehicle oil pump.

도 2는 본 발명에 따른 차량용 오일펌프의 구성을 나타낸 개략적인 도면.Figure 2 is a schematic diagram showing the configuration of an oil pump for a vehicle according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of Symbols for Main Parts of Drawings>

20. 하우징20. Housing

21. 유입유로21. Inflow channel

30. 오일드레인 방지부30. Oil drain prevention part

상기와 같은 목적을 달성하기 위한 본 발명의 차량용 오일펌프는, 하우징과; 상기 하우징의 일측에 형성되어 엔진 오일이 유입되도록 하는 유입유로와; 상기 유입유로를 통해 유입된 엔진 오일이 상기 하우징 쪽으로 유입되도록 상기 유입유로의 단부측에 설치된 입구단을 구비하는 차량용 오일펌프에 있어서, 상기 입구단의 일측에는 엔진 오일이 드레인되지 않도록 하는 오일드레인 방지부가 형성된 것을 그 특징으로 한다.Vehicle oil pump of the present invention for achieving the above object, the housing; An inflow passage formed at one side of the housing to allow engine oil to flow in; An oil pump for a vehicle having an inlet end installed on an end side of the inflow passage so that engine oil introduced through the inflow passage flows into the housing, wherein oil drain prevention prevents engine oil from being drained on one side of the inlet passage. It is characterized by the addition formed.

이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2에는 본 발명에 따른 차량용 오일펌프를 개략적으로 나타낸 구성도가 도시되어 있다. 여기에서는 일반적인 차량용 오일펌프의 구성 설명은 생략하고, 본 발명의 특징에 따른 구성만을 설명하기로 한다.Figure 2 is a schematic diagram showing a vehicle oil pump according to the present invention. Here, the description of the configuration of a general vehicle oil pump will be omitted, and only the configuration according to the features of the present invention will be described.

도면을 참조하면, 본 발명에 따른 차량용 오일펌프는, 하우징(20)과, 상기 하우징(20)의 일측에 형성되어 엔진 오일이 유입되도록 하는 유입유로(21)와, 상기 유입유로(21)를 통해 유입된 엔진 오일이 하우징(20)쪽으로 유입되도록 이 유입유로(21)의 단부측에 설치된 입구단(22)을 구비하는 데, 상기 입구단(22)의 일측에는 엔진 오일이 드레인되지 않도록 하는 오일드레인 방지부(30)가 형성되어 이루어진다.Referring to the drawings, an oil pump for a vehicle according to the present invention includes a housing 20, an inflow passage 21 formed at one side of the housing 20 to allow engine oil to flow therein, and the inflow passage 21. Inlet end 22 is provided on the end side of the inflow passage 21 so that the engine oil introduced through the housing 20 flows in one side of the inlet end 22 so that the engine oil is not drained. The oil drain prevention part 30 is formed.

그리고 상기 오일드레인 방지부(30)는 입구단(22)의 하부쪽에 설치되고, 상기 유입유로(21)의 단부는 입구단(22)의 상부쪽으로 형성된다.The oil drain prevention part 30 is installed at the lower side of the inlet end 22, and the end of the inflow passage 21 is formed at the upper side of the inlet end 22.

한편, 상기 하우징(20)에는 입구단(22)과 대향되게 출구단(23)이 마련되어 있다.On the other hand, the housing 20 is provided with an outlet end 23 to face the inlet end 22.

상술한 바와 같은 구성을 갖는 본 발명에 따른 차량용 오일펌프의 작용을 설명하면 다음과 같다. 여기에서는 일반적인 차량용 오일펌프의 작용 설명은 생략하고, 본 발명의 특징에 따른 작용만을 설명하기로 한다.Referring to the operation of the vehicle oil pump according to the present invention having the configuration as described above are as follows. Here, the description of the operation of the general vehicle oil pump will be omitted, and only the operation according to the features of the present invention will be described.

도면을 다시 참조하면, 오일펌프 하우징(20)의 입구단(22)에 엔진 정지시 엔진 오일이 완전히 드레인되지 않도록 오일드레인 방지부(30)를 설치함으로서, 오일펌프와 하우징(20)간의 간극을 이 엔진 오일로 실링함으로 오일펌프의 펌핑 능력을 향상시킨다.Referring back to the drawings, by installing the oil drain prevention portion 30 in the inlet end 22 of the oil pump housing 20 so that the engine oil is not completely drained when the engine is stopped, the gap between the oil pump and the housing 20 is closed. Sealing with this engine oil improves the pumping capacity of the oil pump.

그리고 현재 오일펌프 하우징(20)의 유입유로(21)는 수직으로 뚫려 있어 엔진 정지시 오일펌프 내의 오일이 오일팬으로 드레인 되어 장시간 방치후 재시동시 엔진 오일 펌핑이 곤란하였으나, 유입유로(21)의 단부측을 상부로 올리고, 그 하부는 상기 오일드레인 방지부(30)로 막아 하우징(20) 내의 엔진 오일이 완전히 드레인되지 않게 변경함으로써 엔진 시동시 초기 오일펌프의 펌핑 능력을 증대시킨다.In addition, the inflow passage 21 of the oil pump housing 20 is vertically drilled so that when the engine stops, the oil in the oil pump is drained into the oil pan, so that it is difficult to pump the engine oil when restarted after a long time. Raising the end side to the upper side, the lower portion is blocked by the oil drain prevention portion 30 to change the engine oil in the housing 20 is not completely drained to increase the pumping capacity of the initial oil pump at engine start-up.

상술한 바와 같이 본 발명에 따른 차량용 오일펌프는 다음과 같은 효과를 갖는다.As described above, the vehicle oil pump according to the present invention has the following effects.

초기 엔진 시동시 또는 장시간 엔진 방치 후, 오일 압력이 형성되지 않은 문제점을 개선토록 하우징의 입구단에 오일드레인 방지부를 설치함으로서 엔진 오일이 완전히 드레인되는 것을 방지함으로서 엔진 전체가 손상되는 것을 방지할 수 있다.It is possible to prevent the entire engine from being damaged by installing an oil drain prevention part at the inlet end of the housing to improve the problem that the oil pressure is not formed when the engine is started for the first time or after a long time of leaving the engine. .

다시 말해, 오일펌프의 시동 초기 펌핑 능력이 향상되고, 펌핑 능력 상실 또는 시간 지연으로 인한 엔진 전체의 손상을 예방할 수 있다.In other words, the initial pumping capability of the oil pump is improved, and damage to the entire engine due to loss of pumping capability or time delay can be prevented.

그리고 시동 초기 오일 압력 지연시간 단축으로 초기 마모량 감소로 엔진의 수명이 증가된다.And shorter start-up oil pressure delays reduce engine wear and increase engine life.

본 발명은 도면에 도시된 일 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 당해 기술분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 실시예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 보호 범위는 첨부된 특허청구범위에 의해서만 정해져야 할 것이다.Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (2)

(정정) 하우징과; 상기 하우징의 일측에 형성되어 엔진 오일이 유입되도록 하는 유입유로와; 상기 유입유로를 통해 유입된 엔진 오일이 상기 하우징 쪽으로 유입되도록 상기 유입유로의 단부측에 설치된 입구단을 구비하는 차량용 오일펌프에 있어서,A (correction) housing; An inflow passage formed at one side of the housing to allow engine oil to flow in; In the vehicle oil pump having an inlet end provided on the end side of the inflow passage so that the engine oil introduced through the inflow passage flows toward the housing, 상기 입구단의 일측에는 엔진 오일이 드레인 되지 않도록 하는오일드레인 방지부가형성된 것을 특징으로 하는 차량용 오일펌프.The oil pump for a vehicle, characterized in that the oil drain prevention portion is formed on one side of the inlet end to prevent the engine oil is drained. (정정) 제1항에 있어서,(Correction) The method according to claim 1, 상기 오일드레인 방지부는,상기 입구단의 하부쪽에 설치되고, 상기 유입유로의 단부는 상기 입구단의 상부쪽으로 형성된 것을 특징으로 하는 차량용 오일펌프. The oil drain preventing unit is installed on the lower side of the inlet end , the end of the inflow passage is characterized in that the vehicle oil pump formed to the upper side of the inlet end.
KR10-2000-0081875A 2000-12-26 2000-12-26 Oil pump for vehicles KR100405694B1 (en)

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