KR0154379B1 - Apparatus for controlling engine intake temperature for construction equipment - Google Patents
Apparatus for controlling engine intake temperature for construction equipmentInfo
- Publication number
- KR0154379B1 KR0154379B1 KR1019950010745A KR19950010745A KR0154379B1 KR 0154379 B1 KR0154379 B1 KR 0154379B1 KR 1019950010745 A KR1019950010745 A KR 1019950010745A KR 19950010745 A KR19950010745 A KR 19950010745A KR 0154379 B1 KR0154379 B1 KR 0154379B1
- Authority
- KR
- South Korea
- Prior art keywords
- engine
- temperature
- intake
- air
- duct
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
- F02M31/06—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air
- F02M31/07—Temperature-responsive control, e.g. using thermostatically-controlled valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0414—Air temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
본 발명은 건설장비 등에 장착되어, 디이젤 엔진에서 흡입공기의 온도변화에 따라 외기 또는 엔진룸 내의 흡기를 선택적으로 공급할 수 있도록 하는 건설장비용 디이젤 엔진의 흡기온도 조절장치에 관한 것이다.The present invention relates to an intake air temperature control device for a diesel engine for construction equipment mounted on construction equipment, such that the diesel engine can selectively supply the intake air in the outside air or the engine room according to the temperature change of the intake air.
중장비들은 외기를 그대로 흡입하여 엔진의 흡기로 사용하므로 외기의 온도가 너무 낮은 경우에는 이를 그대로 흡입하면 엔진출력이 저하되는데, 본 발명은 차체 측면의 통기공에 연하여 설치되는 덕트내에 설치되는 흡기구 측에 온도센서에 따라 개폐되는 격판을 설치하여 이루어 진 것으로, 외기의 상태에 따른 영향을 극소화시켜서 항상 엔진의 정격출력을 기대할 수 있으며, 특히 그 장치구조 및 설치가 손쉬워서 경제적인 발명인 것이다.Since heavy equipment sucks the outside air as it is and uses it as the intake of the engine, if the temperature of the outside air is too low, the engine output decreases as it is, but the present invention provides an intake side installed in a duct that is connected to the air vent of the vehicle body side. It is made by installing the diaphragm to be opened and closed according to the temperature sensor, and by minimizing the influence of the external air condition can always expect the rated output of the engine, in particular, the structure and installation of the device is easy and economical invention.
Description
제1도는 본 발명이 설치된 건설중장비의 평면도.1 is a plan view of the heavy construction equipment is installed the present invention.
제2도는 본 발명이 설치된 건설중장비의 배면도.2 is a rear view of the heavy equipment under construction of the present invention.
제3도는 본 발명의 요부의 확대측면도.Figure 3 is an enlarged side view of the main part of the present invention.
제4도는 본 발명의 구성흐름도.4 is a structural flow diagram of the present invention.
제5도는 종래 발명의 확대측면도이다.5 is an enlarged side view of the conventional invention.
* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
1 : 센서 2 : 엑츄에이터1 Sensor 2 Actuator
3 : 격판 4 : 차체3: plate 4: body
5 : 통기공 6 : 흡기구5: ventilator 6: intake vent
7 : 덕트 8 : 솔레노이드7: duct 8: solenoid
8' : 솔레노이드 작동 8 : 솔레노이드 오프8 ': Solenoid Operation 8: Solenoid Off
9 : CPU 10 : 엔진룸9: CPU 10: Engine Room
본 발명은 건설장비 등에 장착되어, 디이젤 엔진에서 흡입공기의 온도변화에 따라 외기 또는 엔진룸 내의 흡기를 선택적으로 공급할 수 있도록 하는 건설장비용 디이젤 엔진의 흡기온도 조절장치에 관한 것이다.The present invention relates to an intake air temperature control device for a diesel engine for construction equipment mounted on construction equipment, such that the diesel engine can selectively supply the intake air in the outside air or the engine room according to the temperature change of the intake air.
우리나라의 기술발전에 따라 우리나라에서 생상되는 건설중장비들은 세계 각국에 수출되고 있는데, 건설중장비를 사용하는 국가들은 그 지형적 여건에 의하여 다양한 기후(온도조건)하에서 중장비를 운영하고 있으며, 이에는 고위도 지방의 한랭한 온도하에서나 저위도 지방의 고온하에서도 중장비의 성능을 충분히 발휘할 수 있도록 하여야 할 것이다.Due to the technological development of Korea, the heavy construction equipment produced in Korea is exported to various countries around the world. The countries using heavy construction equipment are operating heavy equipment under various climates (temperature conditions) according to the geographical conditions. Under cold temperatures or high temperatures in low latitudes, heavy equipment should be able to perform well.
그런데, 디이젤 엔진은 흡기만을 엔진의 실린더내에 공급하고 이를 고압으로 압축한 상태에서 연료(디이젤유)를 실린더 내의 압축공기보다 고압으로 분사시켜 주므로서 자발화를 시켜서 엔진을 가동시키므로 흡기의 온도가 엔진의 발화시점이나 발화시간(연소전파시간) 등에 밀접한 관계를 가지고 있게 되며, 따라서, 흡기의 온도가 너무 낮은 경우에는 엔진에서의 발화가 적절히 이루어지지 않게 되어 엔진출력 저하의 요인이 된다.However, diesel engines supply only intake air into the cylinder of the engine and inject the fuel (diesel oil) at a higher pressure than compressed air in the cylinder while compressing it at a high pressure. It has a close relationship with the ignition time and the ignition time (combustion propagation time). Therefore, if the temperature of the intake air is too low, the ignition in the engine will not be performed properly, resulting in a decrease in engine output.
즉, 외기의 온도가 너무 낮은 경우에는 이를 그대로 흡입하면 엔진출력이 저하되는데, 현재까지 이를 보완하기 위한 적절한 장치가 없으며, 승용차등에는 냉각수에 서멀스타트(Thermal Start)라는 장치를 하여 엔진을 냉각시키는 냉각수의 회전을 차단하므로서 엔진의 과냉각을 방지하여 혹한기 엔진가동의 조속한 정상화를 도모하는데, 본 발명의 장치는 이와도 전혀 별개의 개념과 구성을 가지고 있는 것으로, 이는 차체 측면의 통기공에 연하여 설치되는 덕트내에 설치되는 흡기구 측에 온도센서에 따라 개폐되는 격판을 설치하여 이루어 진 것으로, 이를 도면에 따라 보다 상세히 설명하면 다음과 같다.In other words, if the temperature of the outside air is too low, the engine output is reduced by inhaling it as it is. To date, there is no suitable device to compensate for this, and in a passenger car, the engine is cooled by using a device called thermal start in the coolant. By blocking the rotation of the coolant to prevent overcooling of the engine to facilitate the rapid normalization of cold weather engine operation, the device of the present invention has a completely different concept and configuration, which is connected to the ventilation hole on the side of the vehicle body It is made by installing a diaphragm that is opened and closed in accordance with the temperature sensor on the inlet port is installed in the duct, which will be described in more detail according to the drawings.
제4도는 본 발명의 장치가 설치되지 않은 종래 발명의 확대측면도이고, 제1도 내지 제3도는 본 발명의 각 상태도이고, 제5도는 본 발명의 통제흐름도이다.4 is an enlarged side view of a conventional invention in which the apparatus of the present invention is not installed, and FIGS. 1 to 3 are respective state diagrams of the present invention, and FIG. 5 is a control flowchart of the present invention.
도면에 도시된 바와 같이, 본 발명은 차체(4) 후부 측면내에 설치되는 일정규격의 덕트(7)내에 흡기구(6)가 인출되고 덕트(7)는 차체(4)측의 통기공(5)을 통하여 외기와 연통되도록 된 건설장비의 흡기시스템에 있어서, 상기 덕트(7)의 일면이 외기와 연통되는 엔진룸(10)에 연통되도록 하고, 상기 덕트(7)의 중앙부에서 통기공(5)측과 엔진룸(10) 연통로를 선택적으로 개폐하는 격판(3)이 엑츄에이터(2)에 의하여 작동되도록 하고, 외부 스위치로 여기되면 흡기온도를 감지하는 온도센서(1)의 온도를 판단하여 온도가 10℃ 이하일 때만 솔레노이드 작동(8)을 시켜서 상기 엑츄에이터(2)를 동작시키도록 조절하는 CPU(9)로 이루어진 것을 특징으로 한다.As shown in the figure, in the present invention, the intake port 6 is drawn out of a predetermined size of the duct 7 installed in the rear side of the vehicle body 4, and the duct 7 is provided with a vent hole 5 on the vehicle body 4 side. In the intake system of the construction equipment is to communicate with the outside through the air, the one surface of the duct (7) is in communication with the engine room 10 is in communication with the outside, the vent hole (5) in the central portion of the duct (7) The diaphragm 3 which selectively opens and closes the communication path between the side and the engine room 10 is operated by the actuator 2, and when excited by an external switch, the temperature of the temperature sensor 1 which senses the intake air temperature is determined by determining the temperature. Is characterized in that it consists of a CPU (9) to adjust the solenoid operation (8) to operate the actuator (2) only when less than 10 ℃.
상기와 같이 구성되는 본 발명은 외부스위치로 컨트롤시스템을 작동시키나, 엔진스타트를 여기신호로 할 수도 있으며, CPU(9)는 여기되면 일정시간마다 온도센서(1)로 부터 온도자료를 입력받아 기준치(본 발명에서는 10℃를 기준으로 하였으나 사용장소의 여건에 따라 기준치를 변명시킬 수도 있음) 이상인 경우에는 솔레노이드 오프(8)를 시켜 엑츄에이터(2)가 원복되도록 {엑츄에이터(2)의 원보은격판(3)에 공지의 스프링을 설치하여 엑츄에이터(2)가 작동되지 않으면 항상 원복되도록 할 수도 있다}하는데, 엑츄에이터(2)가 원복되면 격판(3)은 덕트(7)의 통기공(5)측과 흡기구(6)가 연통되도록 되어 외기가 그대로 흡기구(6)로 흡입되도록 하며, 기준치 이하인 경우에는 솔레노이드 작동(8')을 시켜 엑츄에이터(2)를 작동시켜서 격판(3)이 덕트(7)의 엔진룸(10) 연통로(도시 생략)측과 흡기구(6)간에 연통되도록하여 엔진룸(10) 내의 공기를 흡입하도록 한다.According to the present invention configured as described above, the control system is operated by an external switch, but the engine start may be an excitation signal, and the CPU 9 receives the temperature data from the temperature sensor 1 at a predetermined time when the CPU 9 is excited. (In the present invention, but the reference value may be excused according to the conditions of the place of use, but 10 ℃ ℃) If the above is the solenoid off (8) to the actuator (2) the original silver plate of the actuator (2) ( 3), a known spring may be installed so that the actuator 2 is always retracted if the actuator 2 is not operated. When the actuator 2 is retracted, the diaphragm 3 is connected to the vent hole 5 side of the duct 7. The intake port 6 is connected so that the outside air is sucked into the intake port 6 as it is. If the reference value is below the reference value, the solenoid operation 8 'is performed to operate the actuator 2 so that the diaphragm 3 is the engine of the duct 7. Room (10) It communicates between the passage (not shown) side and the intake port (6) to suck the air in the engine room (10).
이때, 엔진룸(10)의 중앙부에는 엔진이 위치되며, 물론 엔진은 냉각수에 의하여 냉각이 되지만 수냉식 기관에 있어서도 실린더 블록 외부에 큰표면적을 가지는 핀(fin)을 부착시켜서 공냉을 함께 도모하고 있는 바, 엔진주변(엔진룸 내부)의 공기는 정상 작동시 통상 50℃ 이상의 온도를 유지하고 있는 바, 대기온도와는 약 40℃ 이상의 온도차를 가지게 되고, 이렇게 온도상승된 흡기는 엔진가동 효율을 상승시키게 되어 항상 정격출력 이상으로 작동되게 한다.At this time, the engine is located in the center of the engine room 10, of course, the engine is cooled by the coolant, but even in the water-cooled engine to attach a fin (fin) having a large surface area outside the cylinder block to achieve air cooling together In general, the air around the engine (inside the engine room) maintains a temperature of 50 ℃ or higher during normal operation, and thus has a temperature difference of about 40 ℃ or higher from the ambient temperature. Always operate above the rated power.
따라서, 본 발명의 장치가 적용되는 중장비에서는 엔진출력의 향상으로, 엔진설계 등의 변혁까지 기대할 수 있으며, 외기의 상태에 따른 영향을 극소화시켜서 항상 엔진의 정격출력을 기대할 수 있으며, 특히 그 장치구조 및 설치가 손쉬워서 경제적일 뿐만 아니라, 승용차나 화물차등에도 간단히 적용시킬 수 있어서 효용가치가 높은 발명인 것이다.Therefore, in the heavy equipment to which the apparatus of the present invention is applied, the engine output can be improved and the engine design can be transformed, and the rated output of the engine can be expected at all times by minimizing the influence of the external air, especially the apparatus structure. And because it is easy to install and economical, it can be easily applied to a passenger car or a truck, etc., so that the invention has high utility value.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950010745A KR0154379B1 (en) | 1995-05-02 | 1995-05-02 | Apparatus for controlling engine intake temperature for construction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950010745A KR0154379B1 (en) | 1995-05-02 | 1995-05-02 | Apparatus for controlling engine intake temperature for construction equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960041668A KR960041668A (en) | 1996-12-19 |
| KR0154379B1 true KR0154379B1 (en) | 1998-11-16 |
Family
ID=19413592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950010745A KR0154379B1 (en) | 1995-05-02 | 1995-05-02 | Apparatus for controlling engine intake temperature for construction equipment |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0154379B1 (en) |
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1995
- 1995-05-02 KR KR1019950010745A patent/KR0154379B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR960041668A (en) | 1996-12-19 |
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