KR960001875Y1 - Fuel pre-heating apparatus - Google Patents
Fuel pre-heating apparatus Download PDFInfo
- Publication number
- KR960001875Y1 KR960001875Y1 KR2019930008294U KR930008294U KR960001875Y1 KR 960001875 Y1 KR960001875 Y1 KR 960001875Y1 KR 2019930008294 U KR2019930008294 U KR 2019930008294U KR 930008294 U KR930008294 U KR 930008294U KR 960001875 Y1 KR960001875 Y1 KR 960001875Y1
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- South Korea
- Prior art keywords
- fuel
- exhaust
- exhaust gas
- pipe
- fuel supply
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims description 73
- 238000010438 heat treatment Methods 0.000 title description 4
- 239000000463 material Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 30
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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
- F02M31/16—Other apparatus for heating fuel
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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
- F02M31/08—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 the gases being exhaust gases
- F02M31/0825—Particular constructional characteristics of the heat exchange surfaces, e.g. finned pipes, coiled pipes or the like
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/04—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices
- F02M35/042—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices combined with other devices, e.g. heaters ; for use other than engine air intake cleaning, e.g. air intake filters arranged in the fuel vapour recovery system
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
내용 없음.No content.
Description
제l도는 본 고안에 따른 디젤엔진 연료 예열장치의 단면도1 is a cross-sectional view of the diesel engine fuel preheating apparatus according to the present invention
제2도는 제1도의 선 A-A를 따른 단면도 및2 is a cross sectional view along line A-A of FIG.
제3도는 본 고안에 따른 연료 예열장치를 구비하는 디젤엔진에서 연료의 흐름을 나타내는 계통도이다.3 is a system diagram showing the flow of fuel in a diesel engine having a fuel preheater according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 배기관 2 : 확장부1: exhaust pipe 2: expansion part
3 : 배기외관 3' : 배기내관3: Exhaust tube 3 ': Exhaust tube
4 : 연료공급관 5 : 배기가스안내판4: fuel supply pipe 5: exhaust gas guide plate
4a : 연료유입관 4b : 연료유출관4a: fuel inlet pipe 4b: fuel inlet pipe
본 고안은 디젤엔진을 사용하는 각종 차량에 배기관으로 배출되는 배기가스의 패열을 이용하여 연료를 예열시키는 연소기관의 연료 예열장치에 관한 것이다.The present invention relates to a fuel preheater of a combustion engine for preheating fuel by using the heat of exhaust gas discharged to an exhaust pipe in various vehicles using a diesel engine.
최근 각종 차량에서 배출되는 배기가스 특히 디젤엔진을 사용하는 차량에서 배출되는 불완전 연소된 배기가스 등과 같은 유독성 배기가스로 인한 환경공해는 매우 심각한 상태에 이르러 이와 같은 불완전연소가스의 배출을 줄이기 위하여 배기관에 집진기 또는 불완전 연소입자 포집기 등을 부착하거나 연소 촉진을 위하여 촉매를 사용하는 방법등이 제시되었으며 또한 엔진 연료를 예열함으로써 불완전 연소 생성물의 배출을 경감하는 방안이 제안된 바 있다.In recent years, the environmental pollution caused by toxic exhaust gases such as exhaust gas emitted from various vehicles, in particular, incompletely burned exhaust gas emitted from vehicles using diesel engines, has reached a very serious condition. A method of attaching a dust collector or an incomplete combustion particle collector or using a catalyst for promoting combustion has been proposed, and a method of reducing emissions of incomplete combustion products by preheating engine fuel has been proposed.
그러나 불완전 연소가스 집진기나 포집기 등은 일정기간이 지나면 그 효능이 현저하게 감소하여 교체해 주어야 하는 등 비경제적이면서 번거로운 단점이 있다.However, incomplete combustion gas dust collector or collector has a disadvantage that is uneconomical and cumbersome, such as the effect is significantly reduced after replacement for a certain period of time.
한편, 촉매를 사용하는 경우에는 엔진 연료에 일정량의 촉매를 계속적으로 공급하여 주어야 하기 때문에 비경제적이다.On the other hand, when the catalyst is used, it is uneconomical because a constant amount of catalyst must be continuously supplied to the engine fuel.
또한 엔진 연료를 예열함으로써 불완전 연소가스를 줄이는 장치로는 1988년 실용신안등록출원 제9681호의 "연소 기관의 연료 예열 장치"와 같은 것이 알려져 있으나, 이 고안은 실린더로 유입되는 연료를 플란저(Plunger)입구에서 잠시 멈추게 한 후 그 연료가 들어있는 공간 내부를 전열선이 통과하도록 함으로써 연료에 열을 공급하는 것이다. 그러나 이와 같은 방법으로 연료를 예열하는 경우에는 별도의 가열수단을 구비하여야 할뿐만 아니라 화재의 위험이 매우 크다는 문제점이 있다.In addition, a device for reducing incomplete combustion gas by preheating the engine fuel is known as the fuel preheating device of the combustion engine of Utility Model Registration No. 9661 in 1988, but the present invention is designed to plunger fuel into the cylinder. After stopping at the entrance, the heating wire passes through the inside of the space containing the fuel to supply heat to the fuel. However, in the case of preheating the fuel in this way, there is a problem that not only a separate heating means should be provided but also a very high risk of fire.
본 고안은 이와 같은 문제점을 해결하기 위하여 연료 공급 펌프로부터 연료 여과기로 연결되는 종래의 연료공급관이 배기관을 통과하는 구성을 갖도록 함으로써 연료 공급관을 통하여 흐르는 연료가 배기관을 통해 배출 되는 고온의 배기 가스로부터 열을 흡수하여 소정온도까지 예열될 수 있도록 하고 있다.In order to solve such a problem, the present invention has a configuration in which a conventional fuel supply pipe connected to a fuel filter from a fuel supply pump passes through an exhaust pipe so that fuel flowing through the fuel supply pipe is discharged from the hot exhaust gas discharged through the exhaust pipe. It is absorbed so that it can be preheated to a predetermined temperature.
아래에서는 첨부된 도면을 참조하면서 본원 고안의 한 실시예에 관하여 설명한다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
제1도에서 "1"은 고온의 배기가스를 안내하는 배기관이며, "2"는 배기관을 통과하는 배기가스를 이용하여 연료를 예열하는 본 고안에 따른 디젤엔진의 연료 예열장치인 배기관(1)의 확장부이다. 배기관(1)의 상기 확장부(2)에는 배기 내관(3')이 동축적으로 설치되어 이 배기내관(3')과 확장부(2)사이에 배기 외관(3)이 형성된다. 한편 상기 배기 외관(3)에는 연료 공급 펌프로부터 공급되는 연료를 예열하기 위하여 나선형의 연료 공급관(4)이 상기 확장부(2)의 배기 가스 유입부쪽에서부터 배기가스 유출부쪽으로 설치되어 있다. 또한 상기 확장부(2)로 유입된 배기가스와 상기 배기 외관(3)에 설치된 연료 공급관(4)을 흐르는 연료가 효과적인 열교환을 할 수있도록 상기 배기관(1)로부터 상기 확장부(2)의 배기가스 유입부로 유입되는 배기가스를 상기 배기 외관(3)쪽으로 안내하기 위한 배기가스 안내판(5)이 상기 배기가스 유입부쪽에 설치되어 있다.In FIG. 1, "1" is an exhaust pipe for guiding a high temperature exhaust gas, and "2" is an exhaust pipe 1 which is a fuel preheating device of a diesel engine according to the present invention for preheating fuel using exhaust gas passing through an exhaust pipe. Is an extension of. An exhaust inner tube 3 'is coaxially installed in the expansion portion 2 of the exhaust pipe 1, and an exhaust appearance 3 is formed between the exhaust inner tube 3' and the expansion portion 2. As shown in FIG. On the other hand, in the exhaust appearance 3, a spiral fuel supply pipe 4 is provided from the exhaust gas inlet side of the expansion part 2 toward the exhaust gas outlet side to preheat the fuel supplied from the fuel supply pump. In addition, the exhaust gas from the exhaust pipe 1 is exhausted from the exhaust pipe 1 so that the exhaust gas introduced into the expansion part 2 and the fuel flowing through the fuel supply pipe 4 installed in the exhaust appearance 3 can effectively exchange heat. An exhaust gas guide plate 5 for guiding the exhaust gas flowing into the gas inlet to the exhaust appearance 3 is provided on the exhaust gas inlet.
다음으로 이상과 같은 구성을 갖는 본 고안에 따른 디젤엔진의 연료 예열장치에 의한 연료 예열과정을 살펴본다.Next, look at the fuel preheating process by the fuel preheater of the diesel engine according to the present invention having the configuration as described above.
일반적으로 디젤엔진에서 연료는 연료 탱크 → 연료공급펌프 → 연료여과기 → 분사펌프 → 분사노즐의 순으로 공급되어 실린더 내부에서 연소되도록 되어 있다. 그러나 본 고안에 따른 연료 예열장치를 채용한 디젤엔진에서는 연료 공급 펌프를 지나온 연료가 상기 확장부(2)의 배기가스 유입부쪽에 설치되어 있는 연료 유입관(4a)으로 유입되어 확장부(2)의 상기 배기 외관(3)내부에 설치되어 있는 나선형의 연료 공급관(4)을 거치면서 고온의 배기가스와 열을 교환하여 예열된 후 상기 확장부(2)의 배기가스 유출부쪽에 설치되어 있는 연료 유출관(4b)를 통해 연료 여과기로 공급된다.In general, in diesel engines, fuel is supplied in the order of fuel tank → fuel supply pump → fuel filter → injection pump → injection nozzle to be combusted in the cylinder. However, in the diesel engine employing the fuel preheater according to the present invention, the fuel passing through the fuel supply pump flows into the fuel inlet pipe 4a installed at the exhaust gas inlet side of the expansion unit 2, thereby expanding the expansion unit 2. The fuel is installed on the exhaust gas outlet side of the expansion part 2 after being preheated by exchanging heat with the high temperature exhaust gas while passing through the spiral fuel supply pipe 4 installed inside the exhaust appearance 3 of the gas. It is supplied to the fuel filter through the outflow pipe 4b.
즉 본 고안에 따른 연료 예열장치를 채용한 디젤엔진에서는 연료가 연료 탱크 → 연료공급펌프 → 연료예열장치 → 연료여과기 → 분사펌프 → 분사노즐의 순으로 공급되는 것이다.That is, in the diesel engine employing the fuel preheater according to the present invention, the fuel is supplied in the order of fuel tank → fuel supply pump → fuel preheater → fuel filter → injection pump → injection nozzle.
한편 배기관(1)으로부터 상기 확장부로 유입되는 배기가스는 상기 확장부(2)의 배기가스 유입부쪽에 설치되어 있는 배기가스 안내판(5)에 의하여 배기 외관(3)의 연료 공급관(4) 바깥쪽 공간으로 안내되어 배기가스 유출부쪽으로 이동하고, 상기 확장부의 배기가스 유출부쪽 단부에 부딪쳐서 180°회전하여 배기 외관(3)의 상기연료 공급관 안쪽공간을 따라 배기가스 유입부쪽으로 이동하면서 상기 연료 공급관(4)을 통과하는 연로를 예열하고, 배기가스 유입부쪽에 설치되어 있는 배기가스 안내판(5)에 부딪쳐서 다시 180°회전하여 배기 내관(3')을 통과하여 배출된다. 즉 배기관(1)을 통과하여 확장부(2)로 유입되는 배기가스는 배기 외관(3)을 통과하면서 연료 공급관(4) 내부를 지나가는 연료를 충분히 예열한 후 배기 외관(3')을 통하여 배출되는 것이다.On the other hand, the exhaust gas flowing from the exhaust pipe 1 into the expansion part is outside the fuel supply pipe 4 of the exhaust appearance 3 by the exhaust gas guide plate 5 provided on the exhaust gas inlet side of the expansion part 2. The fuel supply pipe is moved to the exhaust gas outlet, and is rotated 180 ° by hitting the exhaust gas outlet side end of the expansion part and moving toward the exhaust gas inlet along the inner space of the fuel supply pipe of the exhaust appearance 3. Preheat the flue passing through 4), hits the exhaust gas guide plate 5 provided on the exhaust gas inlet side, rotates again by 180 degrees and is discharged through the exhaust inner pipe (3 '). That is, the exhaust gas flowing through the exhaust pipe 1 into the expansion unit 2 sufficiently preheats the fuel passing through the fuel supply pipe 4 while passing through the exhaust exterior 3, and then discharges through the exhaust exterior 3 ′. Will be.
이와 같은 과정에 의하여 배기관(1)의 확장부(2)를 지나는 고온(550°∼ 800℃)의 배기가스에 의해 디젤엔진 연료의 착화점(69°∼ 88°)보다 조금 낮은 온도까지 예열된 연료는 분사 펌프를 거쳐 분사 노즐에 의하여 실린더 내부의 흡입 압축된 공기에 분사될 때 예열되지 않은 연료에 비해 압축된 공기와의 혼합이 더 잘되어 거의 완전 연소하게 된다.Fuel preheated to a temperature slightly lower than the ignition point (69 ° to 88 °) of the diesel engine fuel by the high temperature (550 ° to 800 ° C.) exhaust gas passing through the expansion part 2 of the exhaust pipe 1 by this process. When injected into the intake compressed air inside the cylinder by the injection nozzle via the injection pump, the mixture is better mixed with the compressed air than the fuel which is not preheated and is almost completely burned.
이와 같이 본 고안에 의한 디젤엔진의 연료 예열장치는 별도의 가열수단을 요구하지 않고 안전하게 연료를 예열함으로써 연료의 연소를 촉진하여 유해한 불완전 연소 생성물의 배출량을 현저하게 감소시켜 대기오염의 방지에 기여할 뿐 아니라 연료가 완전 연소할 수 있도록 하므로 디젤엔진의 열 효율을 높여 출력을 증대시키며 연료를 절약하는 효과를 가진다.As such, the fuel preheater of the diesel engine according to the present invention promotes combustion of fuel by safely preheating the fuel without requiring a separate heating means, thereby significantly reducing emissions of harmful incomplete combustion products and contributing to the prevention of air pollution. Instead, the fuel can burn completely, increasing the thermal efficiency of the diesel engine, increasing power output and saving fuel.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930008294U KR960001875Y1 (en) | 1993-05-14 | 1993-05-14 | Fuel pre-heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930008294U KR960001875Y1 (en) | 1993-05-14 | 1993-05-14 | Fuel pre-heating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940027030U KR940027030U (en) | 1994-12-09 |
| KR960001875Y1 true KR960001875Y1 (en) | 1996-02-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019930008294U KR960001875Y1 (en) | 1993-05-14 | 1993-05-14 | Fuel pre-heating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR960001875Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8763591B2 (en) | 2007-12-21 | 2014-07-01 | Seok Ju Song | Fuel heating equipment of diesel engine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010111072A (en) * | 2001-11-07 | 2001-12-15 | 강희곤 | Heat engine device to increase energy efficiency by using exhaust gas. |
| KR100944969B1 (en) * | 2007-12-21 | 2010-03-05 | 송석주 | Fuel heating equipment of diesel engine |
-
1993
- 1993-05-14 KR KR2019930008294U patent/KR960001875Y1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8763591B2 (en) | 2007-12-21 | 2014-07-01 | Seok Ju Song | Fuel heating equipment of diesel engine |
Also Published As
| Publication number | Publication date |
|---|---|
| KR940027030U (en) | 1994-12-09 |
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