KR0170105B1 - Ventilation controlling device for an engine - Google Patents
Ventilation controlling device for an engine Download PDFInfo
- Publication number
- KR0170105B1 KR0170105B1 KR1019950028963A KR19950028963A KR0170105B1 KR 0170105 B1 KR0170105 B1 KR 0170105B1 KR 1019950028963 A KR1019950028963 A KR 1019950028963A KR 19950028963 A KR19950028963 A KR 19950028963A KR 0170105 B1 KR0170105 B1 KR 0170105B1
- Authority
- KR
- South Korea
- Prior art keywords
- engine
- pressure
- ventilation valve
- controller
- crank chamber
- Prior art date
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Classifications
-
- 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
- F01M13/00—Crankcase ventilating or breathing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2300/00—Purposes or special features of road vehicle drive control systems
- B60Y2300/43—Control of engines
- B60Y2300/437—Control of engine valves
-
- 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
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0038—Layout of crankcase breathing systems
- F01M2013/0044—Layout of crankcase breathing systems with one or more valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
본 발명은 자동차 기관의 환기구조에 관한 것으로서, 엔진오일의 열화를 지연시켜 주기 위해, 기관 상부의 헤드커버(13) 일측에 흡기다기관에 연통되는 크랭크실 환기밸브(22)가 연결되고, 공기여과기에 연통되는 벤트호스(21)가 상기 헤드커버 타측에 연통되는 것에 있어서, 상기 기관의 크랭크실 하부에 압력계(30)가 내부와 연통되게 장치되고, 상기 압력계에서 감지된 압력상태를 인가받는 제어기(31)가 상기 크랭크 실환기밸브에 제어 가능하게 연결되어, 상기 제어기가 인가받는 압력상태에 따라 크랭크실환기밸브(22)의 개폐량이 조절되도록 구성하여, 압력계(30)에 의해 크랭크실 내의 압력이 계측되고, 이 압력이 제어기(31)에 인가되어 기준치 이하일 때는 크랭크실환기밸브(22)를 통해 배출되는 유량이 증가되도록 하고, 인가된 압력이 기준치 이상일 때는 제어기(31)에서 크랭크실환기밸브(22)를 조절하여 배출되는 유량이 감소되도록 하는 자동차 기관의 환기제어장치이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation structure of an automobile engine, in order to delay deterioration of engine oil, a crankcase ventilation valve 22 connected to an intake manifold is connected to one side of the head cover 13 at the upper part of the engine, and an air filter In the vent hose 21 which is in communication with the other side of the head cover, the pressure gauge 30 is installed in communication with the inside of the lower part of the crank chamber of the engine, the controller for receiving the pressure state sensed by the pressure gauge ( 31) is controlably connected to the crank chamber ventilation valve, so that the opening and closing amount of the crank chamber ventilation valve 22 is adjusted according to the pressure state to which the controller is applied, so that the pressure in the crank chamber is increased by the pressure gauge 30. When this pressure is applied to the controller 31 and is below the reference value, the flow rate discharged through the crankcase ventilation valve 22 is increased, and the applied pressure is higher than the reference value. At this time, the controller 31 controls the crankcase ventilation valve 22, so that the flow rate of the exhaust gas is reduced.
Description
제1도는 종래 기관의 환기구조를 나타내는 개략도.1 is a schematic diagram showing a ventilation structure of a conventional engine.
제2도는 본 발명 기관의 환기구조를 나타내는 개략도.2 is a schematic view showing the ventilation structure of the engine of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 실린더블록 11 : 오일팬10: cylinder block 11: oil pan
12 : 실린더헤드 13 : 헤드커버12: cylinder head 13: head cover
21 : 벤트호스 22 : 크랭크실환기밸브21: vent hose 22: crank chamber ventilation valve
30 : 압력계 31 : 제어기30 pressure gauge 31 controller
본 발명은 자동차 기관의 환기구조에 관한 것으로서, 특히 기관의 환기성이 향상되도록 하여, 엔진오일의 열화를 지연시키고 엔진오일의 교환주기가 연장되도록 하는 자동차 기관의 환기제어장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation structure of an automobile engine, and more particularly, to an apparatus for controlling a ventilation of an automobile engine to improve engine ventilation, to delay deterioration of engine oil and to extend an engine oil replacement cycle.
일반적으로 자동차의 기관은 제1도에 도시되는 바와 같이, 하단부에 크랭크케이스(crank case)가 일체로 형성되는 실린더블록(cylinder block)(10)의 저면에 오일팬(oil pan)(11)이 취부되고, 실린더블록(10)의 상단부에 실린더헤드(12)가 기밀하게 설치되며, 실린더헤드(12) 상단부에 헤드커버(head cover)(13)가 착탈 가능하게 덮여져 있다.In general, as shown in FIG. 1, an engine of an automobile includes an oil pan 11 at a bottom of a cylinder block 10 in which a crank case is integrally formed at a lower end thereof. The cylinder head 12 is hermetically installed at the upper end of the cylinder block 10, and the head cover 13 is detachably covered at the upper end of the cylinder head 12.
한편, 이러한 자동차의 기관에서 종래 기관의 환기장치는, 헤드커버(13)의 일측에 공기여과기(air cleaner)에 연통되는 벤트호스(vent hose)(21)가 연통되게 연결되고, 헤드커버(13)의 타측에 흡기다기관 또는 써지탱크로 연통되는 크랭크실환기밸브(positive crankcase ventilation valve)(22)가 장착되어 있다.On the other hand, in the engine of the conventional engine, the ventilator of the conventional engine, a vent hose (21) which is connected to the air cleaner (air cleaner) to one side of the head cover 13 is connected in communication, the head cover 13 On the other side of the crankcase is mounted a positive crankcase ventilation valve 22 in communication with the intake manifold or surge tank.
이러한 종래 자동차의 기관 환기장치는, 기관의 크랭크케이스 내부에서 발생되는 유해가스(blow by gas)가 기관의 흡입력에 의해 발생되는 부압에 의해 크랭크실 환기밸브(22)를 통해 흡기다기관으로 안내되어 연소되도록 하고, 흡기다기관으로 배출된 만큼의 새로운 공기가 벤트호스(21)를 통해 공기여과기로부터 유입되어 환기되도록 한다.In the conventional engine ventilator of the vehicle, blow by gas generated inside the crankcase of the engine is guided to the intake manifold through the crankcase ventilation valve 22 by the negative pressure generated by the suction force of the engine and burned. And as much new air discharged to the intake manifold is introduced from the air filter through the vent hose 21 and ventilated.
그러나, 이러한 종래 자동차의 기관 환기장치는, 기관의 상태에 따라 유해가스의 양이 가변되게 되고, 보통 흡기부압의 감소에 따라 유해가스의 통과유량이 증가하도록 되는데, 크랭크실환기밸브(22)의 유량이 제2도의 부압측인 흡기다기관(23)과 대기압측인 공기여과기(24) 사이의 부압차에 의해서 조정되도록 되어, 기관의 고전이 급격히 변동되는 경우, 크랭크실환기밸브(22)가 이를 추종하지 못하고, 기관에 새로운 공기를 공급하는 것도 충분하지 못하여, 오일팬(11)에 저장된 엔진오일이 열화되고, 이로인해 엔진오일의 교환시기가 비교적 빠르게 되는 문제점이 있었다.However, in the engine ventilation system of the conventional vehicle, the amount of harmful gas is varied according to the state of the engine, and the passage flow rate of the harmful gas is usually increased according to the decrease of the intake underpressure, and the crankcase ventilation valve 22 The flow rate is adjusted by the negative pressure difference between the intake manifold 23 on the negative pressure side of FIG. 2 and the air filter 24 on the atmospheric pressure side. There was a problem that it was not able to follow and supply new air to the engine, and the engine oil stored in the oil pan 11 was deteriorated, which caused the replacement time of the engine oil to be relatively fast.
본 발명의 목적은 상기와 같은 종래의 문제점을 해결하기 위해, 크랭크실 하부에 취부되는 오일팬 측부에 압력계가 장치되고, 상기 압력계의 압력에 따라 크랭크 실환기밸브가 제어기에 의해 조절되도록 되어, 기관의 상태에 따라 가변되는 유해가스가 알맞게 환기되도록 하는 자동차 기관의 환기제어장치를 제공하는 데 있다.An object of the present invention is to solve the conventional problems as described above, the pressure gauge is installed on the side of the oil pan mounted on the lower part of the crank chamber, the crank chamber ventilation valve is adjusted by the controller according to the pressure of the pressure gauge, It is to provide a ventilation control device of an automobile engine so that the harmful gas that is variable depending on the state of the ventilation.
이하 첨부된 도면에 의하여 본 발명의 기술적 구성을 상세히 설명하면 다음과 같다.Hereinafter, the technical configuration of the present invention with reference to the accompanying drawings in detail.
본 발명의 환기구조도 제2도에 도시되는 바와 같이, 하단부에 크랭크케이스가 일체로 형성되는 실린더블록(10)의 저면에 오일팬(11)이 취부되고, 실린더블록(10)의 상단부에 실린더헤드(12)가 기밀하게 설치되며, 실린더헤드(12) 상단부에 헤드커버(13)가 착탈 가능하게 덮여져, 헤드커버(13)의 일측에 공기여과기에 연통되는 벤트호스(21)가 연통되게 연결되고, 헤드커버(13)의 타측에 흡기다기관 또는 써지탱크로 연통되는 크랭크실환기밸브(22)가 연결된다. 단, 본 발명은 오일팬(11) 측부에 크랭크실 내부와 연통되게 압력계(30)가 장치되고, 상기 압력계(30)에서 감지된 압력상태를 인가받아 일정 기준치를 중심으로 압력상태에 따라 가변적인 제어신호를 출력하는 제어기(controler)(31)가 크랭크실환기밸브(22)에 구동 가능하게 연결되어, 제어기(31)가 인가받는 압력상태에 따라 크랭크실환기밸브(22)의 개폐량이 조절되도록 구성함을 그 기술적 구성상의 기본 특징으로 한다.Ventilation structure of the present invention, as shown in Figure 2, the oil pan 11 is mounted on the bottom surface of the cylinder block 10 in which the crankcase is integrally formed at the lower end, the cylinder at the upper end of the cylinder block 10 The head 12 is hermetically installed, and the head cover 13 is detachably covered at the upper end of the cylinder head 12 so that the vent hose 21 communicating with the air filter is connected to one side of the head cover 13. The crankcase ventilation valve 22 is connected to the other side of the head cover 13 to communicate with the intake manifold or surge tank. However, in the present invention, the pressure gauge 30 is installed to communicate with the inside of the crank chamber at the side of the oil pan 11, and is applied according to the pressure state detected by the pressure gauge 30 and is variable depending on the pressure state. A controller 31 for outputting a control signal is operably connected to the crankcase ventilation valve 22 so that the opening and closing amount of the crankcase ventilation valve 22 is adjusted according to the pressure state applied to the controller 31. The construction is a basic feature of the technical construction.
이와같이 구성되는 본 발명은, 기관의 작동중 압력계(30)에 의해 크랭크실 내의 압력이 계측되고, 이 압력이 제어기(31)에 인가되어 기준치 이하일 때는 크랭크 실환기밸브(22)를 통해 배출되는 유량이 증가되도록 하고, 인가된 압력이 기준치 이상일때는 제어기(31)에서 크랭크실환기밸브(22)를 조절하여 배출되는 유량이 감소되도록 한다. 즉, 크랭크실의 내압에 따라 크랭크실환기밸브(22)를 통해 배출되는 유량을 가감시켜 유해가스 유량에 알맞게 환기되도록 한다.According to the present invention configured as described above, the pressure in the crankcase is measured by the pressure gauge 30 during operation of the engine, and when the pressure is applied to the controller 31 and is below the reference value, the flow rate discharged through the crank chamber ventilation valve 22. This increases, and when the applied pressure is higher than the reference value, the crankcase ventilation valve 22 in the controller 31 is adjusted to reduce the discharged flow rate. That is, according to the internal pressure of the crank chamber, the flow rate discharged through the crank chamber ventilation valve 22 is added or subtracted so as to be appropriately ventilated to the harmful gas flow rate.
따라서 이러한 본 발명은, 기관의 상태에 따라 가변되는 유해가스가 제어기(31)에 의해 알맞게 환기되어, 환기성이 향상되도록 하고, 이로인해 엔진오일의 열화를 효과적으로 지연시켜 기관의 수명이 연장되도록 하는 효과가 있다.Therefore, the present invention, the harmful gas that is variable according to the state of the engine is properly ventilated by the controller 31, so that the ventilation is improved, thereby effectively delay the deterioration of the engine oil, thereby extending the life of the engine It works.
이상에서 살펴본 바와 같이, 본 발명은 크랭크실 하부에 취부되는 오일팬 측부에 압력계가 장치되고, 압력계의 압력에 따라 크랭크실환기밸브가 제어기에 의해 조절되어, 기관의 상태에 따라 가변되는 유해가스가 알맞게 환기되도록 하므로, 엔진 오일의 열화를 지연시켜 주는 매우 유용한 것이다.As described above, in the present invention, the pressure gauge is installed on the side of the oil pan mounted on the lower part of the crank chamber, and the crankcase ventilation valve is controlled by the controller according to the pressure of the pressure gauge, so that the harmful gas varies according to the engine state. It is very useful for delaying engine oil deterioration by ensuring adequate ventilation.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950028963A KR0170105B1 (en) | 1995-09-05 | 1995-09-05 | Ventilation controlling device for an engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950028963A KR0170105B1 (en) | 1995-09-05 | 1995-09-05 | Ventilation controlling device for an engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970016073A KR970016073A (en) | 1997-04-28 |
| KR0170105B1 true KR0170105B1 (en) | 1999-03-20 |
Family
ID=19426101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950028963A KR0170105B1 (en) | 1995-09-05 | 1995-09-05 | Ventilation controlling device for an engine |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0170105B1 (en) |
-
1995
- 1995-09-05 KR KR1019950028963A patent/KR0170105B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR970016073A (en) | 1997-04-28 |
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