KR20030049509A - A Fuel-Heating Apparatus for Diesel Engine - Google Patents
A Fuel-Heating Apparatus for Diesel Engine Download PDFInfo
- Publication number
- KR20030049509A KR20030049509A KR1020010079735A KR20010079735A KR20030049509A KR 20030049509 A KR20030049509 A KR 20030049509A KR 1020010079735 A KR1020010079735 A KR 1020010079735A KR 20010079735 A KR20010079735 A KR 20010079735A KR 20030049509 A KR20030049509 A KR 20030049509A
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- South Korea
- Prior art keywords
- fuel
- diesel engine
- heating
- cold state
- cold
- Prior art date
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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
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/125—Fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
- F01P11/16—Indicating devices; Other safety devices concerning coolant temperature
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0236—Industrial applications for vehicles
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0244—Heating of fluids
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- 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
Description
본 발명은 디젤엔진의 연료가열장치에 관한 것으로, 더욱 상세하게는 디젤차량의 냉간상태에서 가열된 연료가 공급되도록 하여 차량의 냉간시동성을 향상시킨 디젤엔진의 연료가열장치에 관한 것이다.The present invention relates to a fuel heating device for a diesel engine, and more particularly, to a fuel heating device for a diesel engine to improve the cold startability of a vehicle by supplying a heated fuel in a cold state of a diesel vehicle.
일반적으로 디젤엔진은 압축착화기관인 관계로 한랭시에 엔진의 시동을 용이하게 하기 위하여 흡기를 가열하시키는 예열장치가 포함되어 있다.In general, a diesel engine is a compression ignition engine, and thus includes a preheating device for heating the intake air in order to facilitate starting of the engine in cold weather.
예열장치는 흡기히팅방시과 글로우플러그 방식으로 크게 구분되며, 냉간시동시 연소실을 가열하는 글로우 플러그 방식이 주류를 이루고 있다.The preheater is largely divided into the intake heating method and the glow plug method, and the glow plug method of heating the combustion chamber during cold start is the mainstream.
그러나, 연료자체가 예열되어 있지 않은 관계로 시동직후 차량이 불완전연소되어 매연이 증가됨을 알 수 있었으며, 피스톤의 마모량이 증가되고, 특히 글로우플러그의 고장시 저온 시동성의 확보가 곤란하였다는 문제점이 있었다.However, since the fuel itself was not preheated, it was found that the vehicle was incompletely burned immediately after starting, so that the smoke was increased, and the amount of wear of the piston was increased, and in particular, it was difficult to secure low temperature startability in case of failure of the glow plug. .
이에 본 발명은 상기 문제점을 개선하기 위하여 안출된 것으로, 디젤엔진의 냉간상태에서 연료를 가열공급하여 냉간시동성을 향상시킨 디젤엔진의 연료가열장치를 제공함에 그 목적이 있는 것이다.Accordingly, the present invention has been made in order to improve the above problems, and an object thereof is to provide a fuel heating device of a diesel engine which improves cold startability by heating and supplying fuel in a cold state of a diesel engine.
이를 위한 본 발명은 디젤엔진의 노즐측에 전열수단을 설치하고 이 전열수단이 냉간상태에서 발열되게 냉간상태를 감지하여 전열수단으로의 전원공급라인을 제어하는 컨트롤유니트가 마련되어 냉각수온센서가 연결된 것이다.The present invention for this purpose is to install the heating means on the nozzle side of the diesel engine and the control unit for controlling the power supply line to the heating means by detecting the cold state so that the heating means is heated in the cold state is connected to the cooling water temperature sensor .
도 1 은 본 발명에 따른 연료가열장치의 개념도이다.1 is a conceptual diagram of a fuel heating device according to the present invention.
- 도면의 주요부분에 대한 부호의 설명 --Explanation of symbols for the main parts of the drawings-
1 - 노즐,10 - 연료공급라인,1-nozzle, 10-fuel supply line,
12 - 전열수단,14 - 냉각수온센서,12-heating means, 14-cooling water temperature sensor,
16 - 컨트롤유니트,16-control unit,
이하, 이 발명이 속하는 기술분야에서 통상의 지식을 갖는 자가 이 발명을 용이하게 실시할 수 있을 정도로 상세히 설명하기 위하여, 이 발명의 가장 바람직한 실시예를 첨부된 도면을 참조로 하여 상세히 설명하기로 한다. 이 발명의 목적, 작용효과를 포함하여 기타 다른 목적들, 특징점들, 그리고 동작상의 이점들이 바람직한 실시예의 설명에 의해 보다 명확해질 것이다.DETAILED DESCRIPTION Hereinafter, the most preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. . Other objects, features, and operational advantages, including the purpose, working effects, and the like of the present invention will become more apparent from the description of the preferred embodiment.
참고로 여기에서 개시되는 실시예는 여러가지 실시가능한 예중에서 당업자의 이해를 돕기 위하여 가장 바람직한 예를 선정하여 제시한 것일 뿐, 이 발명의 기술적 사상이 반드시 이 실시예만 의해서 한정되거나 제한되는 것은 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위내에서 다양한 변화와 변경이 가능함은 물론, 균등한 타의 실시예가 가능함을 밝혀 둔다.For reference, the embodiments disclosed herein are only presented by selecting the most preferred examples to help those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment, Various changes and modifications are possible within the scope without departing from the technical spirit of the present invention, as well as other equivalent embodiments will be found.
예시도면 도 1 은 본 발명에 따른 디젤엔진 연료가열장치를 나타낸 개념도로서, 본 발명은 디젤엔진 냉간시동시 가열된 연료가 공급되게 디젤엔진 노즐(1)측에 근접된 연료공급라인(10)에 내장된 전열수단(12), 이 전열수단(12)은 전원과 전원공급라인을 포함하며, 냉간상태를 감지하는 수단으로 엔진 냉각수 온도를 감지하는 냉각수온센서(14), 상기 냉각수 온도에 따른 냉간상태 범위가 설정되어 상기 냉각수온센서(14)로부터 냉간상태가 감지되면 상기 전원공급라인의 전원공급제어를 통해 전열수단(12)을 발열시키는 컨트롤유니트(16)로 이루어진 디젤엔진의 연료가열장치이다.1 is a conceptual view showing a diesel engine fuel heating device according to the present invention, the present invention is to the fuel supply line 10 in close proximity to the diesel engine nozzle (1) so that the heated fuel is supplied during the cold start of the diesel engine Built-in heat transfer means 12, the heat transfer means 12 includes a power source and a power supply line, a means for detecting a cold state coolant temperature sensor 14 for detecting the engine coolant temperature, cold according to the coolant temperature When the state range is set and the cold state is detected from the cooling water temperature sensor 14 is a fuel heating device of a diesel engine comprising a control unit 16 for generating heat transfer means 12 through the power supply control of the power supply line. .
상술된 바와 같이 본 발명은 기존의 예열장치와는 별도로 냉간시동시 가열된 연료가 공급되도록 하여 시동성을 향상시킨 연료가열장치를 제공한다.As described above, the present invention provides a fuel heating device which improves startability by supplying heated fuel during cold start separately from the existing preheating device.
이를 위한 본 발명은 공급연료의 가열수단으로 연료공급라인(10)에 전열수단(12)이 내장된다.The present invention for this purpose is a heating means 12 is built in the fuel supply line 10 as a heating means of the feed fuel.
전열수단(12)은 전원과 전원공급라인을 포함하며, 냉간시동시 신속한 가열연료를 공급하기 위해 가능한한 노즐(1)에 근접됨이 바람직하다.The heat transfer means 12 includes a power source and a power supply line, and is preferably as close to the nozzle 1 as possible in order to supply rapid heating fuel during cold start.
전열수단(12)은 저항발열방식의 파이프이며, 이 파이프를 연료가 통과하면서 가열되는 것이다.The heat transfer means 12 is a resistance heating pipe, and is heated while fuel passes through the pipe.
여기서, 상기 파이프의 직경과 길이 및 발열량은 냉간상태에서 연료공급량과 적정가열온도 설정을 위해 실험적으로 결정될 것이다.Here, the diameter, length and calorific value of the pipe will be determined experimentally for setting the fuel supply amount and the appropriate heating temperature in the cold state.
한편, 전열수단(12)의 발열은 냉간상태를 조건으로하며, 이를 위해 엔진의 냉간상태를 감지하는 수단으로 엔진의 냉각수온센서(14)가 사용된다.On the other hand, the heat generation of the heat transfer means 12 is a cold state condition, for this purpose the cooling water temperature sensor 14 of the engine is used as a means for detecting the cold state of the engine.
그리고, 냉각수온센서(14)로부터 감지된 냉각수 온도에 따라 전열수단(12)으로의 전원공급을 제어하는 컨트롤유니트(16)가 마련된 것이다.Then, the control unit 16 is provided to control the power supply to the heat transfer means 12 according to the coolant temperature detected by the coolant temperature sensor 14.
컨트롤유니트(16)에는 냉간상태에 따라 전열수단으로의 전원공급을 제어하게 냉각수 온도에 따른 전원공급라인의 스위치수단이 포함된 것이다.The control unit 16 includes switch means of the power supply line according to the coolant temperature to control the power supply to the heat transfer means according to the cold state.
즉, 냉각수 온도로부터, 예를 들어 냉각수 온도가 0℃ 미만이면 이를 냉간상태라 판단하여 공급연료를 가열시키는 것이다.That is, from the cooling water temperature, for example, when the cooling water temperature is less than 0 ° C., it is determined that it is a cold state and the feed fuel is heated.
더우기, 가변저항수단을 이용하여 전원공급 양을 제어함으로써, 냉간상태에 따른 가열정도의 조절이 가능하다.Furthermore, by controlling the amount of power supply using the variable resistance means, it is possible to adjust the degree of heating according to the cold state.
즉, 냉각수온도가 상승되면 이에 따라 공급연료의 가열정도를 하강시켜 융통적인 공급연료 가열이 수행될 수 있는 것이다.In other words, when the coolant temperature is increased, the heating of the feed fuel is lowered, thereby allowing the flexible feed fuel heating to be performed.
한편, 본 발명은 상기된 바와 같이 기존의 예열장치와는 독립적으로 작동되지만, 냉간상태에서 작동되는 동일한 목적에 따라 같이 수행되어 엔진구동을 보조하게 되는 것이다.On the other hand, the present invention is operated independently of the existing preheating device as described above, but is performed together in accordance with the same purpose to operate in the cold state to assist the engine drive.
따라서, 엔진시동시 냉간상태인 경우에 예열장치의 작동과 더불어 본 발명의 연료가열장치가 작동된다.Therefore, the fuel heating device of the present invention is operated in addition to the operation of the preheating device in the cold state when the engine is started.
연료가열장치의 작동은 냉각수온센서(14)로부터의 신호에 의해 설정 온도에 미치지 못하는 경우 컨트롤유니트(16)가 전열수단(12)으로 전원을 공급하여 수행되며, 이에 의해 전열수단(12)으로 공급연료가 통과하면서 급가열되는 것이다.The operation of the fuel heating device is performed by the control unit 16 supplying power to the heat transfer means 12 when the temperature of the fuel heating device does not reach the set temperature due to a signal from the coolant temperature sensor 14, thereby to the heat transfer means 12. As the feed fuel passes, it is rapidly heated.
냉각수 온도가 상승되어짐은 엔진의 워밍업이 완료되어져 냉간상태가 해소되어지는 것이며, 이것 역시 냉각수온센서(14)로부터 감지되어 컨트롤유니트(16)는전열수단(12)으로의 전원공급을 차단하게 되는 것이다.The increase in the coolant temperature means that the warming-up of the engine is completed and the cold state is eliminated. This is also detected by the coolant temperature sensor 14 so that the control unit 16 cuts off the power supply to the heat transfer means 12. will be.
상술된 바와 같이 본 발명에 따르면, 디젤엔진의 냉간상태에서 연료가 가열공급됨으로써, 냉간시동성이 향상되고 매연등의 공해물질 배출이 저감되는 효과가 있다.As described above, according to the present invention, the fuel is heated and supplied in the cold state of the diesel engine, thereby improving cold startability and reducing pollution emissions such as smoke.
또한, 글로우플러그 등 예열장치의 고장시에도 시동성 확보가 가능하다는 효과가 있다.In addition, there is an effect that it is possible to ensure the startability in the event of failure of the preheating device such as a glow plug.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010079735A KR20030049509A (en) | 2001-12-15 | 2001-12-15 | A Fuel-Heating Apparatus for Diesel Engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010079735A KR20030049509A (en) | 2001-12-15 | 2001-12-15 | A Fuel-Heating Apparatus for Diesel Engine |
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| Publication Number | Publication Date |
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| KR20030049509A true KR20030049509A (en) | 2003-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020010079735A KR20030049509A (en) | 2001-12-15 | 2001-12-15 | A Fuel-Heating Apparatus for Diesel Engine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54121327A (en) * | 1978-03-13 | 1979-09-20 | Hino Motors Ltd | Starting assistant device for internal combustion engine |
| JPS60153865U (en) * | 1984-03-23 | 1985-10-14 | 日産自動車株式会社 | Internal combustion engine fuel temperature control device |
| JPS61171867U (en) * | 1985-04-15 | 1986-10-25 | ||
| JPH05340317A (en) * | 1992-03-19 | 1993-12-21 | Ishima Riyuutai Kenkyusho:Kk | Fuel supplying method of combustion device and fuel heating device therefor |
| KR19980055037A (en) * | 1996-12-27 | 1998-09-25 | 양재신 | Preheating device of fuel during cold start of diesel engine |
| KR19980055036A (en) * | 1996-12-27 | 1998-09-25 | 양재신 | Preheating device for cold start of diesel engine |
-
2001
- 2001-12-15 KR KR1020010079735A patent/KR20030049509A/en not_active Application Discontinuation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54121327A (en) * | 1978-03-13 | 1979-09-20 | Hino Motors Ltd | Starting assistant device for internal combustion engine |
| JPS60153865U (en) * | 1984-03-23 | 1985-10-14 | 日産自動車株式会社 | Internal combustion engine fuel temperature control device |
| JPS61171867U (en) * | 1985-04-15 | 1986-10-25 | ||
| JPH05340317A (en) * | 1992-03-19 | 1993-12-21 | Ishima Riyuutai Kenkyusho:Kk | Fuel supplying method of combustion device and fuel heating device therefor |
| KR19980055037A (en) * | 1996-12-27 | 1998-09-25 | 양재신 | Preheating device of fuel during cold start of diesel engine |
| KR19980055036A (en) * | 1996-12-27 | 1998-09-25 | 양재신 | Preheating device for cold start of diesel engine |
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