KR200161757Y1 - Sub-combustion chamber - Google Patents
Sub-combustion chamber Download PDFInfo
- Publication number
- KR200161757Y1 KR200161757Y1 KR2019970002925U KR19970002925U KR200161757Y1 KR 200161757 Y1 KR200161757 Y1 KR 200161757Y1 KR 2019970002925 U KR2019970002925 U KR 2019970002925U KR 19970002925 U KR19970002925 U KR 19970002925U KR 200161757 Y1 KR200161757 Y1 KR 200161757Y1
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- South Korea
- Prior art keywords
- combustion chamber
- present
- combustion
- piston
- forming apparatus
- 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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/08—Engines characterised by precombustion chambers the chamber being of air-swirl type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0618—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
- F02B23/0624—Swirl flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/26—Pistons having combustion chamber in piston head
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
본 고안은 교축손실을 방지하며 희박연소를 촉진시키는 부실식 연소실에 관한 것으로서,The present invention relates to a stale combustion chamber that prevents throttling loss and promotes lean burning.
인젝터(9)의 하부측 실린더 헤드(1)에 원형의 부연소실(5)이 두 개 형성되고, 피스톤(3)의 상부면에 와류형성장치(11)가 체결되는 것을 특징으로 한다.Two circular subcombustion chambers 5 are formed in the lower cylinder head 1 of the injector 9, and the vortex forming apparatus 11 is fastened to the upper surface of the piston 3.
이것에 의해, 고압으로 연료를 분사시킴으로써 PM을 저감시킴과 동시에 희박연소를 촉진시킴으로써 Nox도 저감시킬 수 있고, 다수 개의 분출구를 형성시켜 교축손실을 방지함으로써 연비를 향상시킬 수 있다는 효과가 있다.As a result, PM can be reduced by injecting fuel at a high pressure, and lean combustion can be promoted, thereby reducing No x .
Description
본 고안은 디젤 엔진의 부실식 연소실에 관한 것이며, 보다 상세히는 교축손실을 방지하며 희박연소를 촉진시키는 부실식 연소실에 관한 것이다.The present invention relates to a stale combustion chamber of a diesel engine, and more particularly, to a stale combustion chamber that prevents throttling loss and promotes lean combustion.
디젤 엔진의 연소실중에 부실식은 연소 초기의 예혼합을 억제하여 완만하게 연소를 촉진하고, 연소 후기에는 강력한 난류를 도입하여 분무 화염에 공기 도입을 촉진함으로써 희박연소가 되게 하여 NOx를 저감시키고 있다.In the combustion chamber of a diesel engine, the inconstant type suppresses premixing at the beginning of combustion and gently promotes combustion, and introduces powerful turbulence at the end of combustion to promote the introduction of air into the spray flame, thereby reducing NO x .
그러나, 부실식 연소실의 경우 부연소실에서 주연소실로 가는 분출구에서의 교축 손실로 인해 연비가 나쁘다는 문제점이 발생하였다.However, in the case of an inferior combustion chamber, there is a problem in that fuel economy is poor due to the loss of throttling at the jet port from the subcombustion chamber to the main combustion chamber.
따라서, 본 고안은 상술한 종래의 문제점을 극복하기 위한 것으로서, 본 고안의 목적은 실린더 헤드의 하부에 두 개의 부연소실을 형성시키고 피스톤 상부면에 와류형성장치를 체결시킨 부실식 연소실을 제공하는데 있다.Accordingly, the present invention is to overcome the above-mentioned conventional problems, and an object of the present invention is to provide a sub-chamber combustion chamber in which two sub-combustion chambers are formed at the bottom of the cylinder head and the vortex forming apparatus is fastened to the piston upper surface. .
상기 본 고안의 목적을 달성하기 위한 부실식 연소실의 일예로서, 인젝터의 하부측 실린더 헤드에 원형의 부연소실이 두 개 형성되고, 피스톤 상부면에 와류형성장치가 체결되는 것을 특징으로 한다.As an example of the sub-chamber combustion chamber for achieving the object of the present invention, two circular sub-combustion chamber is formed on the lower cylinder head of the injector, characterized in that the vortex forming device is fastened to the piston upper surface.
이러한 구성에 의해, 본 고안에 따른 부실식 연소실은 희박연소를 촉진시킴으로써 Nox를 저감시킬 수 있고, 다수 개의 분출구를 형성시켜 교축손실을 방지함으로써 연비를 향상시킬 수 있다.By such a configuration, the incorruptible combustion chamber according to the present invention can reduce No x by promoting lean combustion, and improve fuel efficiency by forming a plurality of jet ports to prevent throttle losses.
도 1은 본 고안에 따른 부실식 연소실을 도시한 단면도1 is a cross-sectional view showing a stale combustion chamber according to the present invention.
도 2는 본 고안에 따른 와류형성장치를 도시한 사시도Figure 2 is a perspective view showing a vortex forming apparatus according to the present invention
〈도면의 주요 부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
1 : 실린더 헤드 3 : 피스톤1: cylinder head 3: piston
5 : 부연소실 7 : 실린더 블록5: subcombustion chamber 7: cylinder block
8 : 실린더 9 : 인젝터8: cylinder 9: injector
11 : 와류형성장치 12 : 바디11: vortex forming apparatus 12: body
13 : 쐐기부 15 : 분출구13: wedge portion 15: spout
16 : 고정부16: fixed part
이하, 본 고안의 실시예를 도 1 및 도 2를 참조하여 상세히 설명하기로 한다.Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.
도 1을 참조하면, 연소실은 실린더 헤드(1), 실린더(8) 및 피스톤(3)에 의해 형성된다.Referring to FIG. 1, the combustion chamber is formed by a cylinder head 1, a cylinder 8 and a piston 3.
상기 실린더 헤드(1)의 일부에는 인젝터(9)가 체결되며, 상기 인젝터(9)의 하부측에 원형의 부연소실(5)이 두 개 형성된다.The injector 9 is fastened to a part of the cylinder head 1, and two circular subcombustion chambers 5 are formed on the lower side of the injector 9.
상기 피스톤(3)의 상부면에는 와류형성장치(11)가 체결된다.Vortex forming device 11 is fastened to the upper surface of the piston (3).
도 2를 참조하면, 도 2는 본 고안에 따른 와류형성장치의 사시도로서, 바디(12)의 측면에는 다수 개의 분출구(15)가 형성되고, 상기 바디(12)의 상부면에는 쐐기 형상의 쐐기부(13)가 형성되며, 상기 바디(12)의 하부 중앙부에는 피스톤(3)의 상부에 고정되는 고정부(16)가 체결된다.Referring to Figure 2, Figure 2 is a perspective view of the vortex forming apparatus according to the present invention, a plurality of ejection openings 15 are formed on the side of the body 12, the wedge-shaped wedge on the upper surface of the body 12 A portion 13 is formed, and a fixing portion 16 fixed to the upper portion of the piston 3 is fastened to the lower center portion of the body 12.
상기와 같은 구성에 의해 본 고안의 부실식 연소실은 초기연소는 인젝터(9)에서 분무된 연료가 와류형성장치(11)의 쐐기부(13)에 의해 부연소실(5) 내부에서 발생된 강한 와류에 의해 과농한 영역에서 연소가 진행되고, 그 후의 연소는 화염이 와류형성장치(11)의 분출구(15)를 통해 주연소실(20)로 이동되어 희박한 영역에서 연소가 진행된다.In the combustion chamber of the present invention by the above configuration, the initial combustion is a strong vortex in which fuel sprayed from the injector 9 is generated inside the subcombustion chamber 5 by the wedge portion 13 of the vortex forming apparatus 11. The combustion proceeds in an over-concentrated region, and the subsequent combustion causes the flame to move to the main combustion chamber 20 through the spout 15 of the vortex forming apparatus 11, and the combustion proceeds in the lean region.
상술한 바와 같이 본 고안에 따른 부실식 연소실은 고압으로 연료를 분사시킴으로써 PM을 저감시킴과 동시에 희박연소를 촉진시킴으로써 Nox도 저감시킬 수 있고, 다수 개의 분출구를 형성시켜 교축손실을 방지함으로써 연비를 향상시킬 수 있다는 효과가 있다.As described above, the incorruptible combustion chamber according to the present invention can reduce PM by injecting fuel at high pressure and at the same time promote lean burn, and also reduce NO x . There is an effect that can be improved.
이상에서 설명한 것은 본 고안에 따른 부실식 연소실을 실시하기 위한 하나의 실시예에 불과한 것으로서, 본 고안은 상기한 실시예에 한정되지 않고, 이하의 실용신안등록청구의 범위에서 청구하는 본 고안의 요지를 벗어남이 없이 당해 고안이 속하는 분야에서 통상의 지식을 가진자라면 누구든지 다양한 변경 실시가 가능할 것이다.What has been described above is just one embodiment for implementing the chamber chamber combustion chamber according to the present invention, the present invention is not limited to the above embodiment, the subject matter of the present invention claimed in the following utility model registration claims Any person having ordinary knowledge in the field to which the present invention pertains may make various changes without departing from the scope of the present invention.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970002925U KR200161757Y1 (en) | 1997-02-24 | 1997-02-24 | Sub-combustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970002925U KR200161757Y1 (en) | 1997-02-24 | 1997-02-24 | Sub-combustion chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980058503U KR19980058503U (en) | 1998-10-26 |
| KR200161757Y1 true KR200161757Y1 (en) | 1999-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019970002925U KR200161757Y1 (en) | 1997-02-24 | 1997-02-24 | Sub-combustion chamber |
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| Country | Link |
|---|---|
| KR (1) | KR200161757Y1 (en) |
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1997
- 1997-02-24 KR KR2019970002925U patent/KR200161757Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR19980058503U (en) | 1998-10-26 |
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