KR100401551B1 - lubricating system for crank journal of a deisel vehicle - Google Patents

lubricating system for crank journal of a deisel vehicle Download PDF

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Publication number
KR100401551B1
KR100401551B1 KR10-2000-0075051A KR20000075051A KR100401551B1 KR 100401551 B1 KR100401551 B1 KR 100401551B1 KR 20000075051 A KR20000075051 A KR 20000075051A KR 100401551 B1 KR100401551 B1 KR 100401551B1
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South Korea
Prior art keywords
lubricating oil
storage tank
crank journal
oil
outlet
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KR10-2000-0075051A
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Korean (ko)
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KR20020045436A (en
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양홍준
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기아자동차주식회사
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    • 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
    • F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
    • 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
    • F01M1/16—Controlling lubricant pressure or quantity
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • 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
    • F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
    • F01M2001/062—Crankshaft with passageways
    • 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
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
    • F01M5/021—Conditioning lubricant for aiding engine starting, e.g. heating by heating

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

Abstract

본 발명은 디젤차량의 크랭크 저널 윤활장치에 관해 제시한다. 본 발명은 윤활유가 공급되는 오일통로에 입구와 출구가 각각 연통되도록 연결되어 일정량의 윤활유를 저장하는 윤활유 저장탱크와, 이 윤활유 저장탱크에 설치되며 엔진의 초기 시동시 외부신호에 의해 동작되어 그에 저장된 윤활유를 가열시키는 히터와, 윤활유 저장탱크의 출구를 개폐하는 오일밸브와, 히터에 의해 가열된 윤활유 저장탱크내의 윤활유를 크랭크 저널에 공급시키는 윤활유 공급수단을 포함하여 구성된다. 윤활유 공급수단은 윤활유 저장탱크내에 설치되는 피스톤과, 피스톤을 그 출구의 반대쪽으로 탄성바이어스 시키는 스프링과, 압축공기를 저장하여 윤활유 저장탱크의 출구 반대쪽에 연통되도록 연결되는 공기탱크 및 공기탱크의 출구쪽에 설치되어 공기탱크를 개폐하는 에어밸브로 구성된다. 히터는 엔진 예열라인에 접속되어 시동키의 엑세스 위치에서 동작된다. 본 발명은 동절기 시동시에 낮은 온도에 의해 증가된 윤활유의 점도를 초기상태로 신속히 회복시켜 크랭크 저널로 공급함으로써 초기 시동성을 향상시킬 수 있음과 동시에 크랭크 저널과 메인 베어링의 마모를 최소화시킬 수 있게 된다.The present invention relates to a crank journal lubricator for diesel vehicles. The present invention is connected to each of the inlet and outlet to the oil passage through which the lubricating oil is supplied, a lubricating oil storage tank for storing a certain amount of lubricating oil, and installed in the lubricating oil storage tank and operated by an external signal at the initial start of the engine is stored And a heater for heating the lubricating oil, an oil valve for opening and closing the outlet of the lubricating oil storage tank, and lubricating oil supply means for supplying the crank journal with lubricating oil in the lubricating oil storage tank heated by the heater. The lubricating oil supply means includes a piston installed in the lubricating oil storage tank, a spring for elastically biasing the piston to the opposite side of the outlet, and an air tank and an outlet side of the air tank connected to communicate with the opposite side of the lubricating oil storage tank by storing compressed air. It consists of an air valve installed to open and close the air tank. The heater is connected to the engine preheating line and operated at the access position of the ignition key. The present invention can quickly recover the viscosity of the lubricating oil increased by the low temperature at the start of the winter to the initial state and supply it to the crank journal, thereby improving the initial starting property and minimizing the wear of the crank journal and the main bearing. .

Description

디젤차량의 크랭크 저널 윤활장치{lubricating system for crank journal of a deisel vehicle}Lubricating system for crank journal of a deisel vehicle}

본 발명은 디젤차량의 윤활장치에 관한 것으로서, 보다 상세하게는 동절기 시동시 증가된 윤활유의 점도를 회복시켜 원활한 시동을 유도함과 동시에 시동초기에 크랭크 저널의 마모를 최소화시킬 수 있는 디젤차량의 크랭크 저널 윤활장치에 관한 것이다.The present invention relates to a lubrication device for a diesel vehicle, and more particularly, a crank journal of a diesel vehicle capable of minimizing the wear of the crank journal at the beginning of the start-up and at the same time inducing a smooth start by restoring the viscosity of the increased lubricating oil during the winter start. It relates to a lubrication device.

일반적으로, 차량은 실제적인 자동차의 구동을 위해 엔진을 탑재하고 있으며, 이 차량들은 엔진에서 사용하는 연료에 따라 가솔린차량, 디젤차량, 엘피지차량 등으로 구분된다. 이와 같은 차량들은 시동시 시동모터가 배터리로부터 전원을 공급받아 구동되어 크랭크축의 일단에 고정된 플라이휠을 회전시키고, 이에 따라 크랭크축이 회전되어 그에 연결된 커넥팅로드가 왕복운동 됨으로써 엔진을 기동시키게 된다.In general, a vehicle is equipped with an engine for driving an actual vehicle, and these vehicles are classified into gasoline vehicles, diesel vehicles, and LPG vehicles according to the fuel used in the engines. Such vehicles are driven by a starter motor powered from a battery at start-up to rotate a flywheel fixed to one end of the crankshaft, thereby rotating the crankshaft to reciprocate the connecting rod connected thereto to start the engine.

한편, 차량은 많은 기계부품들이 서로 전동 가능하게 연결되어 동작되는 바, 각 부품들간의 연결부위에는 원활한 동작과 마모 방지를 위해 윤활유가 공급된다. 특히, 엔진의 실린더와 피스톤 및 크랭크 저널 간에는 고열이 발생될 뿐만 아니라 연료의 폭발작용에 따른 큰 충격이 작용하므로 엔진의 구동과 동시에 지속적인 윤활이 이루져야 한다.On the other hand, the vehicle is operated by a number of mechanical parts are electrically connected to each other, the connection between each of the parts are supplied with lubricating oil for smooth operation and wear protection. In particular, not only high heat is generated between the cylinder of the engine, the piston and the crank journal, but also a large impact due to the explosion of the fuel acts as a continuous lubrication at the same time driving the engine.

도 1에는 예를 들어 디젤차량의 크랭크 저널 윤활장치를 개략적으로 도시하였다. 차량의 시동을 걸면 오일펌프(6)가 구동되어 오일 스트레이너(oil strainer)를 통해 오일팬(oil pan)의 윤활유를 흡입한 뒤 실린더블록의 메인 오일갤러리(8)로 압송한다. 메인 오일갤러리(8)로 압송된 윤활유는 크랭크축(1)의 각 메인저널(2 )에 형성된 오일통로(4)를 거쳐 핀저널(3)로 공급되고, 다시 오일팬으로 떨어져 전술한 바와 같이 순환된다.1 schematically shows a crank journal lubricator for a diesel vehicle, for example. When the vehicle is started, the oil pump 6 is driven to suck the lubricating oil from the oil pan through an oil strainer and then pump the oil to the main oil gallery 8 of the cylinder block. Lubricant pumped to the main oil gallery (8) is supplied to the pin journal (3) via the oil passage (4) formed in each main journal (2) of the crankshaft (1), falling back to the oil pan as described above Circulated.

그런데, 동절기에는 낮은 기온 때문에 윤활유의 점도가 커져 초기 시동시 원활한 윤활이 이루어지지 않을 뿐만 아니라, 시동전에는 크랭크 저널(2)과 메인 베어링(5) 사이의 윤활유가 오일팬으로 흘러 내려 양자간에 오일 격막이 거의 없기 때문에 시동모터에 의한 초기 시동시 크랭크축(1)의 회전이 원활히 이루어지지 않는다. 이로 인해 특히 동절기에는 시동이 원활하지 못하고, 크랭크 저널(2) 및 메인 베어링(5)에 심한 마모가 발생되는 문제가 있었다.However, in winter, the viscosity of the lubricating oil is increased due to the low temperature, and the lubricating oil between the crank journal 2 and the main bearing 5 flows into the oil pan before the start-up, and the lubricating oil does not flow smoothly. Since there is almost no such rotation, the crankshaft 1 is not smoothly rotated during the initial startup by the starting motor. Due to this, in particular, the start of the winter is not smooth, there was a problem that severe wear occurs in the crank journal (2) and the main bearing (5).

한편, 디젤차량에는 그 엔진의 구조적 특성상 동절기와 같이 기온이 낮을 경우 시동성이 떨어지기 때문에 엔진(E)에 예열플러그(P)를 설치하여, 초기 시동시 시동키를 엑세스(ACC)에 일정시간동안 위치시킴으로써 엔진을 시동전에 미리 적절히 예열한 뒤 시동하도록 되어 있으나, 이는 동절기 엔진(E)의 시동성을 어느 정도 향상시킬 수 있지만 윤활유 자체를 고유의 점성으로 회복시키기는 어려워 여전히 초기 시동이 원활하게 이루어지지 못할 뿐 아니라 크랭크 저널(2)과 메인 베어링(5 )의 마모를 극복할 수 없었다.On the other hand, in diesel vehicles, due to the structural characteristics of the engine, startability is decreased when the temperature is low, such as winter, so that a preheating plug (P) is installed in the engine (E). Although the engine is preheated properly before starting to start the engine, it can improve the startability of the winter engine (E) to some extent, but it is difficult to restore the lubricating oil to its own viscosity. Not only was it possible to overcome the wear of the crank journal 2 and the main bearing 5.

나머지 부호 T는 엔진의 예열온도를 제어하기 위한 온도조절기이고, L은 엔진예열상태를 표시하는 예열램프이다.The remaining symbol T is a temperature controller for controlling the preheating temperature of the engine, and L is a preheating lamp indicating the engine preheating state.

본 발명은 상술한 종래의 문제점들을 감안하여 창안된 것으로서, 동절기 시동시에 증가된 윤활유의 점도를 초기상태로 신속히 회복시켜 크랭크 저널로 공급함으로써 초기 시동성을 향상시킬 수 있음과 동시에 크랭크 저널과 메인 베어링의 마모를 최소화시킬 수 있는 디젤차량의 크랭크 저널 윤활장치를 제공함에 그 목적이 있다.The present invention was devised in view of the above-described conventional problems, and it is possible to improve the initial startability by supplying the crank journal by quickly recovering the viscosity of the lubricating oil which has been increased during the winter startup to the initial state and at the same time, the crank journal and the main bearing. An object of the present invention is to provide a crank journal lubricator for a diesel vehicle that can minimize wear of the engine.

도 1은 일반적인 디젤차량의 크랭크 저널 윤활장치를 개략적으로 나타낸 구성도,1 is a configuration diagram schematically showing a crank journal lubricator of a typical diesel vehicle,

도 2는 본 발명에 의한 디젤차량의 크랭크 저널 윤활장치를 개략적으로 나타낸 구성도,2 is a schematic view showing a crank journal lubrication apparatus for a diesel vehicle according to the present invention;

도 3은 본 발명의 동작을 설명하기 위한 블록도이다.3 is a block diagram for explaining the operation of the present invention.

〈도면의 주요 부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1: 크랭크축 2: (크랭크축의) 메인저널1: crankshaft 2: main journal (of crankshaft)

5: 메인 베어링 6: 오일펌프5: main bearing 6: oil pump

8: 메인 오일갤러리 11: 윤활유 저장탱크8: Main Oil Gallery 11: Lubricant Storage Tanks

12: 피스톤 13: 스프링12: piston 13: spring

16: 오일밸브 17: 히터16: oil valve 17: heater

19: 에어밸브 20: 공기탱크19: air valve 20: air tank

이와 같은 목적을 달성하기 위해 본 발명에 의한 디젤차량의 크랭크 저널 윤활장치는, 윤활유가 공급되는 오일통로에 입구와 출구가 각각 연통되도록 연결되어 일정량의 윤활유를 저장하는 윤활유 저장탱크; 이 윤활유 저장탱크에 설치되며, 엔진의 초기 시동시 외부신호에 의해 동작되어 그에 저장된 윤활유를 가열시키는 히터; 윤활유 저장탱크의 출구를 개폐하는 오일밸브; 히터에 의해 가열된 윤활유 저장탱크내의 윤활유를 크랭크 저널에 공급시키는 윤활유 공급수단;을 포함하는 것을 특징으로 한다.In order to achieve the above object, the crank journal lubrication apparatus of a diesel vehicle according to the present invention comprises: a lubricating oil storage tank connected to the inlet and the outlet of the oil passage through which lubricating oil is supplied so as to communicate a predetermined amount of lubricating oil; A heater installed in the lubricating oil storage tank, the heater being operated by an external signal when the engine is initially started to heat the lubricating oil stored therein; An oil valve for opening and closing an outlet of the lubricating oil storage tank; And lubricating oil supply means for supplying lubricating oil in the lubricating oil storage tank heated by the heater to the crank journal.

이러한 본 발명의 한 바람직한 특징에 의하면, 윤활유 공급수단은, 윤활유 저장탱크내에 설치되는 피스톤과, 피스톤을 그 출구의 반대쪽으로 탄성바이어스 시키는 스프링과, 압축공기를 저장하여 윤활유 저장탱크의 출구 반대쪽에 연통되도록 연결되는 공기탱크 및 공기탱크의 출구쪽에 설치되어 공기탱크를 개폐하는 에어밸브로 구성된다.According to one preferred feature of the present invention, the lubricating oil supply means communicates with a piston provided in the lubricating oil storage tank, a spring for elastically biasing the piston to the opposite side of the outlet, and compressed air to store the compressed air opposite the outlet of the lubricating oil storage tank. It consists of an air tank connected to the air tank and an air valve installed at the outlet of the air tank to open and close the air tank.

본 발명의 다른 바람직한 특징에 의하면, 히터는 엔진 예열라인에 접속되어시동키의 엑세스 위치에서 동작된다.According to another preferred feature of the invention, the heater is connected to the engine preheating line and operated at the access position of the starter key.

이에 따라 본 발명은, 동절기 시동시에 증가된 윤활유의 점도를 초기상태로 신속히 회복시켜 크랭크 저널로 공급함으로써 초기 시동성을 향상시킬 수 있음과 동시에 크랭크 저널과 메인 베어링의 마모를 최소화시킬 수 있게 되므로 디젤차량의 초기 시동성 향상과 엔진의 내구성 증대에 효과를 발휘하게 된다.Accordingly, the present invention, by quickly recovering the viscosity of the lubricating oil increased during the winter start to the initial state by supplying to the crank journal can improve the initial startability and at the same time minimize the wear of the crank journal and main bearing diesel It is effective in improving the initial startability of the vehicle and increasing the durability of the engine.

이하, 첨부된 도면을 참조하여 본 발명에 의한 디젤차량의 크랭크 저널 윤활장치에 대한 바람직한 한 실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the crank journal lubrication apparatus of a diesel vehicle according to the present invention.

도 2에서, 본 발명에 의한 디젤차량의 크랭크 저널 윤활장치는, 기본적으로 크랭크축(1)의 하부에 설치된 오일팬(도시하지 않음)으로부터 윤활유를 흡입하여 엔진(E) 실린더블록의 오일갤러리(8)로 송출하는 오일펌프(6)와, 오일갤러리(8)에 설치되어 오일펌프(6)로부터 송출되는 윤활유를 여과하는 오일필터(7)로 구성된다. 그리고, 본 발명의 특징에 따라 오일펌프(6)에 의해 송출된 윤활유의 일부를 한시적으로 저장하는 윤활유 저장탱크(11)와, 초기 시동시 윤활유 저장탱크(11)내에 저장된 윤활유를 적정온도로 가열하는 히터(17)와, 이 히터(17)에 의해 가열된 윤활유를 크랭크 저널(2)로 공급시키는 윤활유 공급수단을 구비한다.In FIG. 2, the crank journal lubrication apparatus of the diesel vehicle according to the present invention basically sucks lubricating oil from an oil pan (not shown) installed in the lower part of the crankshaft 1, so that the oil gallery of the cylinder block of the engine E ( It is composed of an oil pump (6) to be sent to 8) and an oil filter (7) which is installed in the oil gallery (8) to filter the lubricating oil sent from the oil pump (6). In addition, according to the characteristics of the present invention, the lubricant storage tank 11 for temporarily storing a part of the lubricant oil sent by the oil pump 6 and the lubricant stored in the lubricant storage tank 11 at the initial start-up are heated to an appropriate temperature. And a lubricating oil supply means for supplying the crank journal 2 with the lubricating oil heated by the heater 17.

윤활유 저장탱크(11)는 그 둘레 상부에 오일입구를 구비하여 관로(14)를 통해 오일갤러리(8)와 연통되고, 그 하단에 오일출구를 구비하여 관로(15)를 통해 오일갤러리(8)와 연통됨으로써 폐회로를 구성한다. 윤활유 저장탱크(11)의 오일출구를 오일갤러리(8)와 연결시키는 관로(15)에는 그를 선택적으로 개폐시키기 위한 오일밸브(16)가 구비된다. 이 오일밸브(16)은 바람직하기로 첵밸브로 구성된다.The lubricating oil storage tank 11 has an oil inlet at an upper portion thereof and communicates with the oil gallery 8 through the conduit 14, and has an oil outlet at the lower end thereof, and the oil gallery 8 through the conduit 15. It communicates with and forms a closed circuit. The conduit 15 connecting the oil outlet of the lubricating oil storage tank 11 with the oil gallery 8 is provided with an oil valve 16 for selectively opening and closing it. This oil valve 16 is preferably composed of a check valve.

히터(17)는 예컨대 열선으로 구성되어 윤활유 저장탱크(11)와 오일밸브(16) 사이의 관로(15)를 감싸도록 설치될 수도 있고, 별도로 도시하지는 않았으나 윤활유 저장탱크(11)를 감싸도록 설치될 수도 있다. 이러한 히터(17)는 별도의 조작스위치에 의해 동작될 수도 있으나, 바람직하기로는 동절기 등에 디젤엔진의 시동성 향상을 위해 설치된 엔진 예열플러그(P) 라인에 접속되어 시동키의 엑세스 위치에서 엔진 예열동작 기간동안 작동된다.The heater 17 may be installed to surround the duct oil 15 between the lubricating oil storage tank 11 and the oil valve 16 by, for example, a heating wire, or installed to surround the lubricating oil storage tank 11 although not separately illustrated. May be The heater 17 may be operated by a separate operation switch, but is preferably connected to an engine preheating plug (P) line installed to improve the startability of the diesel engine in winter, etc., and the engine preheating operation period at an access position of the starter key. Is working.

윤활유 공급수단은 윤활유 저장탱크(11)의 내부에 설치되는 피스톤(12)과, 이 피스톤(12)을 오일출구의 반대쪽으로 탄성바이어스 시키는 스프링(13)과, 압축공기를 충진하여 윤활유 저장탱크(11)의 상단에 관로(18)을 통해 연통되는 공기탱크(20) 및 그 관로(18)를 선택적으로 개폐하기 위한 에어밸브(19)로 구성된다.The lubricating oil supply means includes a piston 12 installed in the lubricating oil storage tank 11, a spring 13 for elastically biasing the piston 12 to the opposite side of the oil outlet, and a compressed air filling tank to fill the lubricating oil storage tank ( 11 is composed of an air tank 20 communicated through a conduit 18 on an upper end of the conduit 18 and an air valve 19 for selectively opening and closing the conduit 18.

나머지 부호 3은 크랭크축(1)의 핀저널, 4는 메인저널(2)의 오일통로, 5는 메인 베어링이고, T는 엔진의 예열온도를 조절하는 온도조절기이며, L은 엔진예열상태를 표시하는 예열램프이다.The remaining 3 is the pin journal of the crankshaft (1), 4 is the oil passage of the main journal (2), 5 is the main bearing, T is the temperature controller for adjusting the preheat temperature of the engine, L is the engine preheating state Preheating lamp.

다음, 이와 같이 구성된 본 발명에 의한 디젤차량의 크랭크 저널 윤활장치의 작동을 도 3을 통해 설명하기로 한다.Next, the operation of the crank journal lubricator of the diesel vehicle according to the present invention configured as described above will be described with reference to FIG.

도 3에서, 디젤차량은 동절기 시동시에 시동스위치를 엑세스(ACC)로 위치시켜 엔진을 적절히 예열시킨 뒤에 시동을 걸어주게 되는 바, 단계(100)에서 시동키를 엑세스로 위치시킨다. 그러면 단계(110)에서, 엔진 예열동작이 온(ON)되어 예열플러그(P)에 전원이 인가됨으로써 엔진을 예열하게 됨과 동시에 윤활유 저장탱크(1 1)에 설치된 히터(17)가 동작된다. 이 때, 예열램프(L)가 점등되어 엔진 예열상태임을 표시하게 되고, 엔진 예열온도와 윤활유 가열온도는 온도조절기(T)에 의해 적절히 콘트롤된다.In FIG. 3, when the diesel vehicle starts the winter, the start switch is placed in the access (ACC) to properly warm up the engine, and then starts up. In step 100, the start key is placed in the access. Then, in step 110, the engine preheating operation is turned on so that power is applied to the preheating plug P to preheat the engine and at the same time, the heater 17 installed in the lubricant storage tank 11 is operated. At this time, the preheating lamp L is turned on to indicate that the engine is preheated, and the engine preheating temperature and the lubricating oil heating temperature are appropriately controlled by the temperature controller T.

그러면, 윤활유 저장탱크(11)의 하부에 설치된 히터(17)가 뜨거워져 그 하단부의 윤활유 온도가 상승하게 되고, 이에 따라 낮은 온도에 의해 점도가 커졌던 윤활유의 점도가 원상태로 신속히 회복된다.Then, the heater 17 installed in the lower part of the lubricating oil storage tank 11 becomes hot, and the lubricating oil temperature of the lower end thereof rises, so that the viscosity of the lubricating oil whose viscosity is increased by the low temperature is quickly restored to its original state.

이와 같이 윤활유의 온도가 적절히 상승되면, 도시하지 않은 제어부의 신호에 의해 단계(120)에서 오일밸브(16)가 개방됨과 동시에 단계(130)에서 에어밸브(1 9)가 개방된다. 그러면, 단계(140)에서 공기탱크(20)내의 압축공기가 관로(18)를 통해 윤활유 저장탱크(11)의 상부로 유입되어 피스톤(12)이 스프링(13)을 압축하면서 하강하게 된다. 이에 따라 단계(150)에서, 히터(17)에 의해 적정온도로 승온된 윤활유 저장탱크(11)내의 윤활유가 관로(15)를 통해 오일갤러리(8)로 송출되어 신속하게 크랭크 저널(2)의 습동부로 공급되게 된다.When the temperature of the lubricating oil is properly raised in this manner, the oil valve 16 is opened in step 120 and the air valve 19 is opened in step 130 by a signal of a controller (not shown). Then, in step 140, the compressed air in the air tank 20 flows into the upper portion of the lubricating oil storage tank 11 through the conduit 18 so that the piston 12 descends while compressing the spring 13. Accordingly, in step 150, the lubricating oil in the lubricating oil storage tank 11 heated up to the proper temperature by the heater 17 is sent out to the oil gallery 8 through the conduit 15 and quickly of the crank journal 2. It is supplied to the sliding part.

다음, 단계(160)에서 엔진의 예열이 완료되어 예열플러그(P)의 전원이 차단되면, 그와 동시에 히터(17)에 공급되는 전원도 차단되어 예열이 오프된다. 그러면, 단계(170)에서 에어밸브(19)가 닫혀 단계(180)에서 피스톤(12)이 스프링(13)의 복원탄성에 의해 초기위치로 복귀하고, 단계(190)에서 오일밸브(16)가 닫힌다. 그러면, 단계(200)에서 제어부가 시동가능여부를 체크한 뒤, 단계(210)에서 시동스위치를 스타트로 위치시켜 시동을 걸어줌으로써 완료한다. 시동이 걸리면 오일팬의 윤활유가 오일펌프(6)에 흡입되어 오일갤러리(8)를 통해 크랭크 저널(2)로 순환 공급되는 바, 단계(220)에서 순환되는 윤활유의 일부가 관로(14)를 통해 윤활유 저장탱크(11)에 자동으로 충진된다.Next, when the preheating of the engine is completed in step 160 and the power of the preheating plug P is cut off, the power supplied to the heater 17 is also cut off and the preheating is turned off. Then, in step 170, the air valve 19 is closed, and in step 180, the piston 12 is returned to the initial position by restoring elasticity of the spring 13, and in step 190, the oil valve 16 is closed. Closed. Then, in step 200, the control unit checks whether the start is possible, and in step 210, the start switch is placed in the start to complete the start. When the engine is started, the lubricant of the oil pan is sucked into the oil pump 6 and circulated and supplied to the crank journal 2 through the oil gallery 8, and a part of the lubricating oil circulated in the step 220 passes through the conduit 14. Through the lubricating oil storage tank 11 is automatically filled.

따라서, 동절기 초기 시동시에 일정량의 윤활유가 그 점성이 회복되도록 가열된 뒤 크랭크 저널(2)로 신속하게 공급되므로 시동모터에 의한 초기 시동성이 매우 원활하게 이루어짐은 물론, 크랭크 저널(2)과 메인 베어링(5)의 마모도 최소화시킬 수 있게 된다.Therefore, since a certain amount of lubricating oil is heated to recover its viscosity at the initial start of the winter season and is quickly supplied to the crank journal 2, the initial starting performance by the starting motor is made very smooth, as well as the crank journal 2 and the main body. The wear of the bearing 5 can also be minimized.

이상에서 설명한 바와 같이 본 발명에 의하면, 디젤차량의 동절기 시동시에 낮은 온도에 의해 증가된 윤활유의 점도를 초기상태로 신속히 회복시켜 크랭크 저널로 공급하게 되므로 초기 시동성을 향상시킬 수 있음과 동시에 크랭크 저널과 메인 베어링의 마모를 최소화시킬 수 있게 된다. 이에 따라 본 발명은 디젤차량의 초기 시동성과 엔진의 내구성을 향상시키는 우수한 효과가 있다.As described above, according to the present invention, since the viscosity of the lubricating oil increased by the low temperature during the winter start of the diesel vehicle is quickly restored to the initial state and supplied to the crank journal, the initial startability can be improved and the crank journal at the same time. And the wear of the main bearings can be minimized. Accordingly, the present invention has an excellent effect of improving the initial starting performance of the diesel vehicle and the durability of the engine.

Claims (3)

오일팬의 윤활유를 흡입하여 실린더블록의 오일통로로 압송하는 오일펌프와, 상기 오일통로에 설치되어 크랭크 저널에 공급되는 윤활유를 여과하는 오일필터를 구비하는 디젤차량의 크랭크 저널 윤활장치에 있어서,In the crank journal lubricator of a diesel vehicle having an oil pump for sucking the lubricating oil of the oil pan and pumping it to the oil passage of the cylinder block, and an oil filter for filtering the lubricating oil provided in the oil passage supplied to the crank journal, 상기 오일통로에 입구와 출구가 각각 연통되도록 연결되어 일정량의 윤활유를 저장하는 윤활유 저장탱크;A lubricating oil storage tank connected to the oil passage so as to communicate with the inlet and the outlet, respectively, to store a predetermined amount of lubricating oil; 상기 윤활유 저장탱크에 설치되며, 엔진의 초기 시동시 외부신호에 의해 동작되어 그에 저장된 윤활유를 가열시키는 히터;A heater installed in the lubricating oil storage tank and operated by an external signal when the engine is initially started to heat the lubricating oil stored therein; 상기 윤활유 저장탱크의 출구를 개폐하는 오일밸브;An oil valve for opening and closing an outlet of the lubricating oil storage tank; 상기 히터에 의해 가열된 윤활유 저장탱크내의 윤활유를 상기 크랭크 저널에 공급시키도록 상기 윤활유 저장탱크내에 설치되는 피스톤과, 상기 피스톤을 그 출구의 반대쪽으로 탄성바이어스 시키는 스프링과, 압축공기를 저장하여 상기 윤활유 저장탱크의 출구 반대쪽에 연통되도록 연결되는 공기탱크 및 상기 공기탱크의 출구쪽에 설치되어 공기탱크를 개폐하는 에어밸브로 구성된 윤활유 공급수단;을 포함하는 것을 특징으로 하는 디젤차량의 크랭크 저널 윤활장치.A piston installed in the lubricating oil storage tank to supply the lubricating oil in the lubricating oil storage tank heated by the heater to the crank journal, a spring for elastically biasing the piston to the opposite side of the outlet, and compressed air to store the lubricating oil Lubricating oil supply means consisting of an air tank connected to communicate with the opposite side of the outlet of the storage tank and an air valve installed on the outlet side of the air tank to open and close the air tank. 삭제delete 제 1 항에 있어서, 상기 히터는 엔진 예열라인에 접속되어 시동키의 엑세스 위치에서 동작되는 것을 특징으로 하는 디젤차량의 크랭크 저널 윤활장치.2. A crank journal lubricator for a diesel vehicle according to claim 1, wherein said heater is connected to an engine preheating line and operated at an access position of a ignition key.
KR10-2000-0075051A 2000-12-11 2000-12-11 lubricating system for crank journal of a deisel vehicle KR100401551B1 (en)

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Publication number Priority date Publication date Assignee Title
DE102019218933A1 (en) 2018-12-19 2020-06-25 Ford Global Technologies, Llc Applying a heated engine oil to an inner surface of at least one cylinder

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KR100405422B1 (en) * 2000-12-19 2003-11-15 기아자동차주식회사 Apparatus for preventing abrasion of crankshaft journal and method for controlling thereof
KR100410822B1 (en) * 2000-12-19 2003-12-18 기아자동차주식회사 Initial stating system for LPG vehicle
KR100405345B1 (en) * 2000-12-19 2003-11-12 기아자동차주식회사 Lubricating system for crank journal of a deisel vehicle
KR100449855B1 (en) * 2002-04-29 2004-09-22 주식회사 이원 Device for improving engine start capacity of lpg automobile
CN101929365B (en) * 2010-07-30 2012-07-04 天津大学 Hydraulic self-adaption air valve correct-timing variable system of diesel engine and control method thereof
JP6669131B2 (en) * 2017-05-31 2020-03-18 トヨタ自動車株式会社 Oil circulation device for internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019218933A1 (en) 2018-12-19 2020-06-25 Ford Global Technologies, Llc Applying a heated engine oil to an inner surface of at least one cylinder
DE102019218934A1 (en) 2018-12-19 2020-06-25 Ford Global Technologies, Llc Motor vehicle
DE102019218934B4 (en) 2018-12-19 2023-06-29 Ford Global Technologies, Llc motor vehicle

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