KR910004925A - 디이젤엔진의 연소실 - Google Patents

디이젤엔진의 연소실 Download PDF

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Publication number
KR910004925A
KR910004925A KR1019900012247A KR900012247A KR910004925A KR 910004925 A KR910004925 A KR 910004925A KR 1019900012247 A KR1019900012247 A KR 1019900012247A KR 900012247 A KR900012247 A KR 900012247A KR 910004925 A KR910004925 A KR 910004925A
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KR
South Korea
Prior art keywords
combustion chamber
diesel engine
side wall
wall surface
radius
Prior art date
Application number
KR1019900012247A
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English (en)
Other versions
KR940006054B1 (ko
Inventor
토오루 카와타니
에이지 미조테
스스무 코오케쯔
토모미 나카가와
테쯔오 스즈끼
요시히사 야마끼
Original Assignee
나까무라 유이찌
미쓰비시지도오샤고오교오 가부시기가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26434285&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR910004925(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP1989092912U external-priority patent/JP2571792Y2/ja
Priority claimed from JP1989112009U external-priority patent/JP2602529Y2/ja
Application filed by 나까무라 유이찌, 미쓰비시지도오샤고오교오 가부시기가이샤 filed Critical 나까무라 유이찌
Publication of KR910004925A publication Critical patent/KR910004925A/ko
Application granted granted Critical
Publication of KR940006054B1 publication Critical patent/KR940006054B1/ko

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Classifications

    • 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
    • F02B23/0672—Omega-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder center axis
    • 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
    • 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
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/0648—Means or methods to improve the spray dispersion, evaporation or ignition
    • F02B23/0651—Means or methods to improve the spray dispersion, evaporation or ignition the fuel spray impinging on reflecting surfaces or being specially guided throughout the combustion space
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

내용 없음.

Description

디이젤엔진의 연소실
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 일실시예에 의한 디이젤엔진의 연소실의 형상을 표시한 단면도.
제2도는 본발명의 다른 실시예에 의한 디이젤 엔진의 연소실의 형상을 표시한 단면도.
제3도는 제2도에 표시한 연소실의 직경과 면적과의 관계를 표시한 그래프.

Claims (5)

  1. 피스톤 정상부에 있는 원형상의 움패임의 바닥면 중앙이, 추형상으로 솟아 오른 돌기로 형성되고, 이 돌기에 이어지는 둘레가장자리부가 원호 형상으로 형성되어서 측벽면에 연속되는 형상을 가진 직접분사식 디이젤엔진의 연소실에 있어서, 돌기는, 급한 구배면으로 형성되어 있는 바닥면쪽에 위치하는 아래부와 완만한 구배면을 가진 원추 대형으로 형성되어있는 정상부쪽에 위치하는 상부를 연속시켜서 조합되고, 원추 대형의 꼭지각은 분사노즐의 원뿔각보다도 10∼30°작게되고, 그리고, 연소실의 측벽면과 이 측벽면에 대향하는 하부 구배면과의 벌어짐각을 0∼30°로 설정되어있는 것을 특징으로 하는 디이젤엔진의 연소실.
  2. 제1항에 있어서, 돌기의 하부와 측벽면에 연속되는 움패임 부분의 바닥면은 원추방향을 따라서 구체를 굴렀을때에 만들어지는 형상으로 형성되고, 이 바닥면은, 연소실의 개구단부의 내경(D2)에 대하여 반경을 R=0.12D∼0.18D의 관계를 가지게 한것을 특징으로하는 디이젤 엔진의 연소실.
  3. 제1항에 있어서, 측벽면의 리엔트런트각을 20∼25°로 설정되어 있는 것을 특징으로 하는 디이젤엔진의 연소실.
  4. 제1항 및 제3항에 있어서, 돌기는, 그 높이를 분사노즐로부터의 연료의 분사를 방해하지않는 위치에 까지 연장되어 있는 것을 특징으로하는 디이젤엔진의 연소실.
  5. 제1항에 있어서, 돌기의 하부 측벽면에 연속되는 움패인부분의 바닥면은, 상기 측벽면에 연달아 형성되는 바깥쪽의 곡면(2′d)를 반경 R1로 형성시키고, 상기 하부에 연달아 형성되는 안쪽의 곡면(2′e)를 반경 R2로 형성하고, 상기 반경 R1과 상기 반경 R2와의 중심을 거리 a만을 떨어지게해서, 상기 바깥쪽의 곡면(2′d)와 상기 안쪽의 곡면(2′e)와의 사이에 평탄부(2′f)를 형성한 것을 특징으로하는 디이젤 엔진의 연소실.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900012247A 1989-08-09 1990-08-09 디이젤엔진의 연소실 KR940006054B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP1989092912U JP2571792Y2 (ja) 1989-08-09 1989-08-09 直噴式ディーゼルエンジンの燃焼室形状
JP1-92912 1989-08-09
JP1-112009 1989-09-25
JP1989112009U JP2602529Y2 (ja) 1989-09-25 1989-09-25 ディーゼルエンジンの燃焼室構造

Publications (2)

Publication Number Publication Date
KR910004925A true KR910004925A (ko) 1991-03-29
KR940006054B1 KR940006054B1 (ko) 1994-07-02

Family

ID=26434285

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900012247A KR940006054B1 (ko) 1989-08-09 1990-08-09 디이젤엔진의 연소실

Country Status (4)

Country Link
US (1) US5099809A (ko)
EP (1) EP0412552B1 (ko)
KR (1) KR940006054B1 (ko)
DE (2) DE412552T1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100428149B1 (ko) * 2001-09-29 2004-04-28 현대자동차주식회사 디젤엔진의 연소실 구조

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DE4228517A1 (de) * 1992-08-27 1994-03-03 Man Nutzfahrzeuge Ag Dieselbrennkraftmaschine
DE4228518A1 (de) * 1992-08-27 1994-03-03 Man Nutzfahrzeuge Ag Brennraumform für luftverdichtende, selbstzündende Brennkraftmaschinen
US5337714A (en) * 1993-09-03 1994-08-16 Deere & Company Engine piston with a dual combustion bowl lip radius
JPH07150944A (ja) * 1993-12-02 1995-06-13 Toyota Motor Corp 直噴式ディーゼルエンジンの燃焼室構造
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EP0810365A1 (de) * 1996-05-10 1997-12-03 Steyr-Daimler-Puch Aktiengesellschaft Dieselmotor mit Direkteinspritzung und Verbrennungsmulde im Kolben
DE19621635B4 (de) * 1996-05-30 2004-02-05 Audi Ag Diesel-Brennkraftmaschine
JP3751462B2 (ja) * 1998-03-27 2006-03-01 株式会社豊田中央研究所 直接噴射式ディーゼル機関
DE19935954A1 (de) * 1999-07-30 2001-02-01 Opel Adam Ag Direkteinspritzende luftverdichtende Hubkolben-Brennkraftmaschine
JP4385547B2 (ja) * 2001-06-06 2009-12-16 マツダ株式会社 ディーゼルエンジン
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JP4384945B2 (ja) * 2004-07-09 2009-12-16 ヤンマー株式会社 直噴式ディーゼル機関の燃焼室形状
US6997158B1 (en) * 2004-10-07 2006-02-14 International Engine Intellectual Property Company, Llc Diesel combustion chamber
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JP5338268B2 (ja) * 2008-11-18 2013-11-13 マツダ株式会社 ディーゼルエンジンの燃焼室構造
CN203584599U (zh) 2011-03-17 2014-05-07 康明斯知识产权公司 用于内燃发动机的活塞
JP2013217306A (ja) * 2012-04-10 2013-10-24 Isuzu Motors Ltd 直噴式エンジンの燃焼室構造
EP3147476B1 (en) 2014-05-22 2019-03-27 Nissan Motor Co., Ltd Combustion chamber structure for diesel engine
CN104595007B (zh) * 2015-01-16 2017-09-29 东风商用车有限公司 一种柴油机直壁双卷流燃烧室
WO2018017028A1 (en) 2016-07-19 2018-01-25 Ggi Enerji Sanayi Ve Ticaret A. S. Combustion chamber for internal combustion engine for use in ci and si engines
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KR102463469B1 (ko) * 2017-10-17 2022-11-04 현대자동차주식회사 리엔트랜트 연소실을 갖춘 디젤엔진
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100428149B1 (ko) * 2001-09-29 2004-04-28 현대자동차주식회사 디젤엔진의 연소실 구조

Also Published As

Publication number Publication date
DE69007899D1 (de) 1994-05-11
US5099809A (en) 1992-03-31
DE412552T1 (de) 1991-06-13
EP0412552A1 (en) 1991-02-13
EP0412552B1 (en) 1994-04-06
KR940006054B1 (ko) 1994-07-02
DE69007899T2 (de) 1994-08-11

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