KR20010053824A - Oil pump apparatus using piston - Google Patents

Oil pump apparatus using piston Download PDF

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Publication number
KR20010053824A
KR20010053824A KR1019990054346A KR19990054346A KR20010053824A KR 20010053824 A KR20010053824 A KR 20010053824A KR 1019990054346 A KR1019990054346 A KR 1019990054346A KR 19990054346 A KR19990054346 A KR 19990054346A KR 20010053824 A KR20010053824 A KR 20010053824A
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KR
South Korea
Prior art keywords
oil
oil pump
cylinder
pump cylinder
piston
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KR1019990054346A
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Korean (ko)
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KR100318506B1 (en
Inventor
조재만
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이계안
현대자동차주식회사
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Priority to KR1019990054346A priority Critical patent/KR100318506B1/en
Priority to US09/727,436 priority patent/US20010002979A1/en
Priority to DE10059687A priority patent/DE10059687A1/en
Priority to JP2000367472A priority patent/JP3413493B2/en
Publication of KR20010053824A publication Critical patent/KR20010053824A/en
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Publication of KR100318506B1 publication Critical patent/KR100318506B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • 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
    • F16N—LUBRICATING
    • F16N13/00—Lubricating-pumps
    • F16N13/02—Lubricating-pumps with reciprocating piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/05—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by internal-combustion engines

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Reciprocating Pumps (AREA)

Abstract

PURPOSE: A piston driving oil pump apparatus is provided to simplify the structure and reduce noise, while improving compression efficiency. CONSTITUTION: An oil pump apparatus comprises an oil pump cylinder(5) installed to a cylinder block where cylinders(1,2,3,4) are arranged; an oil pump piston(6) reciprocating in the oil pump cylinder by a crank shaft(8) which converts the reciprocating motion of the piston into a rotating motion; an oil outlet port(11) formed at the upper portion of the oil pump cylinder in such a manner that the oil outlet port is communicated to an oil gallery(15); an oil inlet port(9) formed at the upper portion of the oil pump cylinder to be adjacent to the oil outlet port, and which is connected to an oil pan side; and an oil inlet valve(12) and an oil outlet valve(13) which are open/shut by a valve train(14) so as to open the oil inlet port and shut the oil outlet port when the oil pump cylinder is lowered, and shut the oil inlet port and open the oil outlet port when the oil pump cylinder is lifted.

Description

피스톤 구동형 오일펌프장치{Oil pump apparatus using piston}Oil pump apparatus using piston

본 발명은 피스톤 구동형 오일펌프장치에 관한 것이다.The present invention relates to a piston driven oil pump device.

엔진의 윤활은 엔진내의 마찰저항을 저감함과 동시에 엔진 내부의 냉각에 대해서도 중요한 의미를 가지고 있다. 이 때문에 엔진에는 윤활을 위한 엔진오일의 주입되어 있다. 엔진의 윤활방식에는 오일펌프에 의한 압송과 주요운동부분의 비산에 의한 것이 있으나, 일반적으로 엔진오일을 엔진하부의 오일팬에 모아 이것을 오일펌프를 구동하여 엔진의 주요부분에 보내는 습식펌프 방식이 주로 사용되고 있다.Lubrication of the engine has an important meaning for cooling the engine while reducing frictional resistance in the engine. For this reason, engine oil for lubrication is injected into the engine. The lubrication method of the engine is due to the pumping by the oil pump and the scattering of the main movement part, but in general, the wet pump method that collects the engine oil in the oil pan under the engine and drives the oil pump to the main part of the engine It is used.

이와같이 오일펌프는 크랭크축이나 캠축베어링 등에 엔진오일을 압송하기 위해 사용되는데 오일펌프는 크랭크축에 의해 직접, 또는 기어나 체인 이붙이벨트 등에 의해 구동되며, 트로코이드식, 크레센트식, 기어식 및 베인식 등이 있으나 인너로터나 아웃터로터로 구성된 트로코로이드식이 많이 사용되고 있다.In this way, the oil pump is used to pump engine oil to the crankshaft or camshaft bearings, etc. The oil pump is driven directly by the crankshaft or by a gear or chained belt, and is a trocoid, crescent, gear and vane type. There is a back, but a trocoroid type composed of an inner rotor or an outer rotor is widely used.

종래의 오일펌프의 설치구조는 도 3과 도 4에 도시하는 것과같이 실린더블록(20)의 측면에 설치공간(21)을 만든 후 오일펌프카바(22)와 인너 및 아웃터로터(23)(24), 프런트케이스(25) 등이 차례로 조립되어 있으며, 크랭크 축(26)의 앞부분에 인너로터(23)가 결합되어 구동하면, 인너로터(23, 내측로터)의 중심이 아웃터로터(24)의 중심에 대해 편심되어 있어 인너로터(23)의 볼록한 잇빨(23a)과 아웃터로터(24)의 오목한 홈부(24a)가 차례로 맞물려 돌아가면서 체적공간의 변화가 생겨, 펌프흡입구(27)를 통해 흡입한 오일을 압축하여, 펌프배출구(28)를 통해 엔진각부에 압송하게 된다.The installation structure of the conventional oil pump is made of the installation space 21 on the side of the cylinder block 20, as shown in Figs. 3 and 4, the oil pump cover 22 and the inner and outer rotors 23 (24) ), The front case 25 and the like are assembled in sequence, and when the inner rotor 23 is coupled to the front part of the crankshaft 26 and driven, the center of the inner rotor 23 (inner rotor) becomes the center of the outer rotor 24. Eccentric with respect to the center, the convex teeth 23a of the inner rotor 23 and the concave grooves 24a of the outer rotor 24 are rotated in turn, resulting in a change in volume space, which is sucked through the pump suction port 27. The oil is compressed and pumped to the engine parts through the pump outlet 28.

그러나 상기한 로터구조에 의하면 크랭크축이 1회전할 때마다 인너로터(23)의 잇빨수만큼 접촉이 일어나면서 소음문제를 발생하게 되며, 이 소음은 엔진 rpm의 증가에 따라 증대되어지게 되므로서 오일펌프 가동에 의한 소음이 엔진소음의중요한 한 영역을 차지하고 있다. 또 다른 문제점으로는 상기한 종래 오일펌프의 경우 많은 부품을 조립하여야 하므로 구조가 복잡하다는 점이 지적되고 있다.However, according to the rotor structure described above, each time the crankshaft rotates, the contact occurs by the number of teeth of the inner rotor 23, which causes a noise problem, and the noise is increased with the increase of the engine rpm. Noise from pump operation is an important area of engine noise. Another problem is pointed out that the structure of the conventional oil pump is complicated because many parts must be assembled.

이에 본 발명은 상기한 문제점을 감안하여 제안한 것으로서 그의 목적으로 하는 것은 부품 및 구조가 단순하며, 압축효율이 우수하고 소음발생이 현저히 감소된 새로운 구조의 오일펌프장치를 제공하는데 있다.Accordingly, the present invention has been proposed in view of the above problems, and its object is to provide an oil pump apparatus having a new structure with simple components and structure, excellent compression efficiency, and significantly reduced noise generation.

상기한 목적을 달성하기 위하여 본 발명은 연소실의 폭발에 의해 피스톤이 왕복구동되는 실린더가 형성된 실린더블록의 일측에 추가로 설치되는 오일펌프용 실린더와;In order to achieve the above object, the present invention provides an oil pump cylinder further installed on one side of a cylinder block in which a cylinder is reciprocated by a explosion of a combustion chamber;

상기 피스톤의 왕복운동을 회전운동으로 변환하는 크랭크축에 의해 상기 오일펌프용 실린더내에서 왕복구동되는 오일펌프용 피스톤과;An oil pump piston reciprocating in the oil pump cylinder by a crank shaft for converting the reciprocating motion of the piston into a rotational motion;

상기 오일펌프용 실린더 상부측으로 오일갤러리에 연통하도록 형성되는 오일배출구와;An oil outlet formed to communicate with the oil gallery toward an upper side of the oil pump cylinder;

상기 오일펌프용 실린더의 상부측에 오일배출구와 이웃하여 형성되며, 오일팬측에 연결되는 오일흡입구와;An oil suction port formed adjacent to the oil discharge port at an upper side of the oil pump cylinder and connected to the oil pan side;

상기 오일펌프용 실린더가 하강작동할 때는 상기 오일흡입구를 개방하고 오일배출구는 차단하며, 상승작동할 때에는 오일흡입구를 폐쇄하고 오일배출구를 개방하도록 밸브트레인에 의해 개폐작동하는 오일흡입 및 오일배출밸브를 포함하여 구성되는 것을 특징으로 한다.When the oil pump cylinder is lowered, the oil inlet is opened and the oil outlet is blocked. When the oil pump is operated up, the oil inlet and the oil outlet valve are opened and closed by the valve train to close the oil inlet and open the oil outlet. Characterized in that it comprises a.

도 1은 본 발명에 의한 피스톤 구동형 오일펌프장치를 나타내는 개략적 도면1 is a schematic view showing a piston driven oil pump device according to the present invention

도 2는 본 발명의 오일흡입 및 배출밸브의 일실시예를 나타내는 도면Figure 2 is a view showing an embodiment of the oil intake and discharge valve of the present invention

도 3과 도 4는 종래기술3 and 4 prior art

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1,2,3,4 : 실린더 5 : 오일펌프용 실린더1,2,3,4: Cylinder 5: Oil pump cylinder

6 : 오일펌프용 피스톤 7 : 커넥팅로드6: Piston for oil pump 7: Connecting rod

8 : 크랭크 축 9 : 오일흡입구8: crankshaft 9: oil inlet

10 : 실린더블록 11 : 오일배출구10: cylinder block 11: oil outlet

12 : 오일흡입밸브 13 : 오일배출밸브12: oil suction valve 13: oil discharge valve

14 : 밸브트레인 15 : 오일갤러리14: valve train 15: oil gallery

16 : 오일흡입용 판상밸브 17 : 오일배출용 판상밸브16: plate valve for oil suction 17: plate valve for oil discharge

이하에 본 발명의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 의한 피스톤 구동형 오일펌프장치를 나타내는 도면으로 실린더블록(10, 이하 실린더헤드를 포함하는 개념임) 4기통 엔진의 경우 4개의 실린더(1,2,3,4)가 차례로 배열되어 있고, 1번 실린더(1) 또는 4번 실린더(4)와 이웃해서 오일펌프용 실린더(5)가 추가로 형성되어 있다.1 is a view showing a piston-driven oil pump device according to the present invention. In the case of a four-cylinder engine with a cylinder block (a concept including a cylinder head 10), four cylinders 1, 2, 3, and 4 are in turn. The oil pump cylinder 5 is further formed adjacent to the 1st cylinder 1 or the 4th cylinder 4, and arranged.

오일펌프용 실린더(5)내에는 오일펌프용 피스톤(6)이 왕복구동되도록 설치되어 있고, 오일펌프용 피스톤(6)은 커넥팅로드(7)를 통해 크랭크 축(8)에 접속되어 있다.The oil pump piston 6 is installed in the oil pump cylinder 5 so as to reciprocate, and the oil pump piston 6 is connected to the crankshaft 8 via the connecting rod 7.

오일펌프용 실린더(5)의 상부측에는 오일흡입구(9)와 오일배출구(11)가 형성되어 있고, 오일흡입 및 배출구(9)(11)는 각각 오일흡입밸브(12)와 오일배출밸브(13)에 의해 개폐된다.An oil suction port 9 and an oil discharge port 11 are formed at an upper side of the oil pump cylinder 5, and the oil suction and discharge ports 9 and 11 are respectively an oil suction valve 12 and an oil discharge valve 13. It is opened and closed by).

그리고 오일흡입밸브(12)와 오일배출밸브(13)는 각 연소용 실린더(1,2,3,4)를 개폐작동하는 밸브트레인(14, 흡배기밸브 작동기구)에 의해 개폐작동되어진다.The oil suction valve 12 and the oil discharge valve 13 are opened and closed by a valve train 14 (intake and exhaust valve operating mechanism) for opening and closing each combustion cylinder 1, 2, 3, 4.

이와같은 본 발명에 의한 오일급송 과정을 설명하면 다음과 같다.Referring to the oil feeding process according to the present invention as follows.

1번 내지 4번 실린더(1,2,3,4)들이 순차적으로 폭발하면 크랭크 축(8)이 회전동력을 얻게되며, 이 크랭크 축(8)에 연결된 오일펌프용 피스톤(6)도 오일펌프용 실린더(5) 내벽면을 따라 상하로 왕복구동된다.When the cylinders 1, 2, 3, and 4 explode sequentially, the crankshaft 8 receives rotational power, and the oil pump piston 6 connected to the crankshaft 8 also has an oil pump. The cylinder 5 is reciprocated up and down along the inner wall surface.

오일펌프용 피스톤(6)이 상사점 위치로부터 하강하게 되면 캠축 등의 밸브트레인(14)에 의해 오일흡입밸브(12)가 오일흡입구(9)를 개방하게 되며, 오일배출밸브(13)는 오일배출구(11)를 차단하게 된다.When the oil pump piston 6 descends from the top dead center position, the oil suction valve 12 opens the oil suction port 9 by a valve train 14 such as a camshaft, and the oil discharge valve 13 is oiled. The outlet 11 is blocked.

이에따라 오일팬내의 오일이 오일펌프용 실린더(5)내의 부압 형성에 따라 오일펌프용 실린더(5)내로 흡입되어지게 되며, 오일펌프용 피스톤(6)이 반전하여 상승할 때에는 앞서와는 반대로 오일흡입밸브(12)가 오일흡입구(9)를 차단하고 오일배출밸브(13)는 오일배출구(11)를 개방하게 된다.Accordingly, the oil in the oil pan is sucked into the oil pump cylinder 5 as the negative pressure is formed in the oil pump cylinder 5, and when the oil pump piston 6 is reversed and ascended, the oil suction is reversed. The valve 12 blocks the oil inlet 9 and the oil discharge valve 13 opens the oil outlet 11.

오일펌프용 피스톤(6)이 상승하면, 오일펌프용 실린더(5)내에 가득찬 엔진오일은 압축력을 받게 되며, 개방된 오일배출구(11)를 통해 오일갤러리(15)로 엔진오일이 압송되어져 엔진의 각 운동부위에 공급되어지게 되는 것이다.When the oil pump piston 6 rises, the engine oil filled in the oil pump cylinder 5 receives a compressive force, and the engine oil is pressurized to the oil gallery 15 through the open oil outlet 11 so that the engine It will be supplied to each movement part of.

여기서 밸브트레인(14)에 의해 작동하는 오일흡입 및 배출밸브(12)(13) 대신에 도 2에 도시하는 것과 같은 구조로 오일흡입구(9)와 오일배출구(11)에 밸브시트부(18)(19)를 형성하고 그 밸브시트부(18)(19)에 밀착하거나 떨어져 개폐하는 판상밸브(16)(17)를 각기 설치하여 간단히 오일의 흡입 및 배출이 이루어지도록 구성할 수도 있다.Here, instead of the oil suction and discharge valves 12 and 13 operated by the valve train 14, the valve seat portion 18 is provided at the oil inlet 9 and the oil outlet 11 in a structure as shown in FIG. (19) and plate valves (16) (17) for opening and closing the valve seat portion 18 (19) in close contact with each other may be provided so that the intake and discharge of oil can be made simply.

이상과 같은 본 발명은 오일펌프용 실린더를 동력을 얻기 위한 실린더에 이웃하도록 실린더블록에 추가로 형성하고, 오일펌프용 실린더로 오일을 흡입한 후 압축하여 배출하는 엔진오일용 피스톤이 크랭크 축에 연동하여 작동하도록 오일펌프용 실린더에 설치하므로써 오일펌프의 구조가 단순해지고 소음발생이 크게 감소되는 효과가 있다.The present invention as described above is further formed in the cylinder block so that the oil pump cylinder adjacent to the cylinder for power, and the piston for the engine oil to suck the oil into the oil pump cylinder and then discharge it by interlocking with the crank shaft By installing in the oil pump cylinder to operate, the structure of the oil pump is simplified and the noise generated is greatly reduced.

Claims (2)

연소실의 폭발에 의해 피스톤이 왕복구동되는 실린더가 형성된 실린더블록의 일측에 추가로 설치되는 오일펌프용 실린더와;An oil pump cylinder further installed on one side of a cylinder block in which a cylinder is reciprocated by an explosion of the combustion chamber; 상기 피스톤의 왕복운동을 회전운동으로 변환하는 크랭크축에 의해 상기 오일펌프용 실린더내에서 왕복구동되는 오일펌프용 피스톤과;An oil pump piston reciprocating in the oil pump cylinder by a crank shaft for converting the reciprocating motion of the piston into a rotational motion; 상기 오일펌프용 실린더 상부측으로 오일갤러리에 연통하도록 형성되는 오일배출구와;An oil outlet formed to communicate with the oil gallery toward an upper side of the oil pump cylinder; 상기 오일펌프용 실린더의 상부측에 오일배출구와 이웃하여 형성되며, 오일팬측에 연결되는 오일흡입구와;An oil suction port formed adjacent to the oil discharge port at an upper side of the oil pump cylinder and connected to the oil pan side; 상기 오일펌프용 실린더가 하강작동할 때는 상기 오일흡입구를 개방하고 오일배출구는 차단하며, 상승작동할 때에는 오일흡입구를 폐쇄하고 오일배출구를 개방하도록 밸브트레인에 의해 개폐작동하는 오일흡입 및 오일배출밸브를 포함하여 구성되는 것을 특징으로 하는 피스톤 구동형 오일펌프장치.When the oil pump cylinder is lowered, the oil inlet is opened and the oil outlet is blocked. When the oil pump is operated up, the oil inlet and the oil outlet valve are opened and closed by the valve train to close the oil inlet and open the oil outlet. Piston-driven oil pump device, characterized in that comprising a. 연소실의 폭발에 의해 피스톤이 왕복구동되는 실린더가 형성된 실린더블록의 일측에 추가로 설치되는 오일펌프용 실린더와;An oil pump cylinder further installed on one side of a cylinder block in which a cylinder is reciprocated by an explosion of the combustion chamber; 상기 피스톤의 왕복운동을 회전운동으로 변환하는 크랭크축에 의해 상기 오일펌프용 실린더내에서 왕복구동되는 오일펌프용 피스톤과;An oil pump piston reciprocating in the oil pump cylinder by a crank shaft for converting the reciprocating motion of the piston into a rotational motion; 상기 오일펌프용 실린더 상부측으로 오일갤러리에 연통하도록 형성되는 오일배출구와;An oil outlet formed to communicate with the oil gallery toward an upper side of the oil pump cylinder; 상기 오일펌프용 실린더의 상부측에 오일배출구와 이웃하여 형성되며, 오일팬에 연결되는 오일흡입구와;An oil suction port formed adjacent to an oil discharge port at an upper side of the oil pump cylinder and connected to an oil pan; 상기 오일펌프용 실린더가 하강작동할 때는 상기 오일흡입구의 밸브시트부로부터 떨어져 오일흡입구를 개방하고 오일배출구의 밸브시트부에는 밀착하여 오일배출구를 차단하며, 상승작동할 때에는 오일흡입구의 밸브시트부에 밀착하여 오일흡입구를 폐쇄하고 오일배출구의 밸브시트부로부터 떨어져 오일 배출구를 개방하도록 회동작동하는 오일 흡ㆍ배출용의 판상밸브들을 포함하여 구성되는 것을 특징으로 하는 피스톤 구동형 오일펌프장치.When the oil pump cylinder is lowered, the oil inlet is opened away from the valve seat of the oil inlet, and the oil outlet is closed by close contact with the valve seat of the oil outlet. And a plate valve for oil intake / discharge, which rotates to close the oil inlet and close the oil inlet and open the oil outlet away from the valve seat portion of the oil outlet.
KR1019990054346A 1999-12-02 1999-12-02 Oil pump apparatus using piston KR100318506B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019990054346A KR100318506B1 (en) 1999-12-02 1999-12-02 Oil pump apparatus using piston
US09/727,436 US20010002979A1 (en) 1999-12-02 2000-11-30 Piston-driven oil pump mechanism
DE10059687A DE10059687A1 (en) 1999-12-02 2000-12-01 Oil pump mechanism with piston drive
JP2000367472A JP3413493B2 (en) 1999-12-02 2000-12-01 Piston driven oil pump device

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