KR970059481A - 기통내분사형 불꽃점화식 내연기관의 실린더헤드 - Google Patents

기통내분사형 불꽃점화식 내연기관의 실린더헤드 Download PDF

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Publication number
KR970059481A
KR970059481A KR1019970002691A KR19970002691A KR970059481A KR 970059481 A KR970059481 A KR 970059481A KR 1019970002691 A KR1019970002691 A KR 1019970002691A KR 19970002691 A KR19970002691 A KR 19970002691A KR 970059481 A KR970059481 A KR 970059481A
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South Korea
Prior art keywords
cylinder
combustion chamber
cylinder head
injection
internal combustion
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KR1019970002691A
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English (en)
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KR100239626B1 (ko
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사도시 요시카와
카즈히로 게시
타카시 카와베
카쯔노리 우에다
노부아키 무라카이
히로카즈 코마이
Original Assignee
키무라 타케무네
미쯔비시지도샤고오교오 가부시기가이샤
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Publication of KR970059481A publication Critical patent/KR970059481A/ko
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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
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B23/104—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder the injector being placed on a side position of the cylinder
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • 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
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B2023/106—Tumble flow, i.e. the axis of rotation of the main charge flow motion is horizontal
    • F02B2023/107—Reverse tumble flow, e.g. having substantially vertical intake ports
    • 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
    • F02B75/00—Other engines
    • F02B75/12—Other methods of operation
    • F02B2075/125—Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/18—DOHC [Double overhead camshaft]
    • 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
    • F02B2275/48—Tumble motion in gas movement in cylinder
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/241—Cylinder heads specially adapted to pent roof shape of the combustion chamber
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

본 발명은, 자동차 등에 탑재되는 기통내분사형 불꽃점화식 내연기관용의 실린더헤드에 관하여, 연료분무의 흐트러짐방지 등을 도모하는 기술에 관한 것으로서, 연료분무의 흐트러짐의 방지외에, 실린더헤드의 내압리이크테스트나 연료계의 리이크테스트의 용이화를 도모한 기통내분사형 불꽃점화식내연기관의 실린더헤드를 제공하는 것을 목적으로 한것이며, 그 구성에 있어서, 실린더헤드(2)에는, 연료분사밸브(4)와 연소실(5)을 연통하는 분사통로(60)가 형성되어 있다. 분사통로(60)는, 그 단면적이 연료분사밸브(4)의 분출구(50)쪽으로부터 연소실(5)쪽으로 향해서 증대하도록 형성되고, 또한 연소실(5)쪽의 끝부분이 흡기포트(13)의 연소실(5)에의 개구단부(흡기개구단부)(61)을 따른 형상으로 되어 있다. 또, 분사통로(60)에는, 분출구(50)쪽의 내벽이 절삭가공에 의해 테이퍼형상의 시일시이트면(62)으로 해서 형성되어 있고, 이 부분에 있어서의 단면적의 변화비율(증대비율)이 다른 부위(단면적급증부(63))에 비해서 작게 설정되어 있는 것을 특징으로 한 것이다.

Description

기통내분사형 불꽃점화식 내연기관의 실린더헤드
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 일실시형태에 관한 기통내분사가솔린엔진의 종단면도.
제2도는 실시형태에 관한 실린더헤드 및 실린더의 종단면도.
제3도는 제2도중의 III사시도.
제4도는 제2도중의 IV부 확대도.

Claims (5)

  1. 실런더(cylinder)(6)의 내벽, 동실린더(6)에 상하 슬라이딩 자재하게 유지된 피스톤(piston)(7)의 상부면 및 실린더헤드(cylinder head)(2)의 하부면에 의해 한정된 연소실(5)과, 상기 실린더헤드(2)에 배설되고, 상기 연소실(5)내에 직접 연료를 분사하는 연료분사밸브(4)와 상기 연소실(5)내에 분사된 연료를 점화하는 점화장치(3)를 구비한 기통내분사형 불꽃점화식 내연기관(1)에 있어서, 상기 실린더헤드(2)에, 상기 연료분사밸브(4)의 분출구(50)와 상기 연소실(5)을 연통하는 동시에, 그 단면적이 상기 분출구쪽으로부터 상기 연소실쪽으로 향함에 따라서 증대하는 분사통로(60)가 형성된 것을 특징으로 하는 기통내분사형 불꽃점화식 내연기관의 실린더헤드.
  2. 제1항에 있어서, 상기 실린더(6)의 축선을 포함하는 가상기준면의 한쪽에 있어서 상기 연소실에 개구하는 흡기개구끝부분(61)과, 상기 흡기개구끝부분(61)에서부터 위쪽을 향해서 뻗어 형성된 직립형의 흡기포트(port)(13)를 구비하고, 상기 분사통로(60)가 상기 흡기개구끝부분(61)에 인접한 위치에서 상기 연소실에 개구하는 것을 특징으로 하는 기통내분사형 불꽃점화식 내연기관의 실린더헤드.
  3. 제1항에 있어서, 상기 분사통로(60)의 단면적의 변화비율은, 상기 연료분사밸브(4)쪽이 상기 연소실(5)쪽에 비해서 작게 설정되어 있는 것을 특징으로 하는 기통내분사형 불꽃점화식 내연기관의 실린더헤드.
  4. 제1항에 있어서, 상기 분사통로(60)의 상기 연료분사밸브(4)쪽에 시일(seal)시이트면(62)이 형성되어 있는 것을 특징으로 하는 기통내분사형 불꽃점화식내연기관의 실린더헤드.
  5. 제4항에 있어서, 상기 시이트면(62)이 상기 분사통로(60)의 상기 연료분사밸브(4)쪽의 내벽에 테이퍼(taper)형상으로 형성되어 있는 것을 특징으로 하는 기통내분사형 불꽃점화식 내연기관의 실린더헤드.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970002691A 1996-01-30 1997-01-29 기통내분사형 불꽃점화식 내연기관의 실린더헤드 KR100239626B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP96-14638 1996-01-30
JP01463896A JP3148617B2 (ja) 1996-01-30 1996-01-30 筒内噴射型火花点火式内燃機関

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KR970059481A true KR970059481A (ko) 1997-08-12
KR100239626B1 KR100239626B1 (ko) 2000-01-15

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Country Link
US (1) US5816215A (ko)
JP (1) JP3148617B2 (ko)
KR (1) KR100239626B1 (ko)
CN (1) CN1093597C (ko)
DE (1) DE19703400C2 (ko)
SE (1) SE517891C2 (ko)

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DE29810897U1 (de) * 1998-06-18 1999-11-18 Fev Motorentech Gmbh Fremdgezündete Kolbenbrennkraftmaschine mit Kraftstoffdirekteinspritzung
JP3939864B2 (ja) * 1998-08-27 2007-07-04 ヤマハ発動機株式会社 筒内噴射式エンジン
JP3974268B2 (ja) * 1998-09-08 2007-09-12 ヤマハ発動機株式会社 筒内噴射式エンジン
FR2786221B1 (fr) 1998-11-20 2000-12-22 Renault Moteur a combustion interne a allumage commande et a injection directe
DE10013592B4 (de) * 2000-03-18 2010-04-22 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Brennkraftmaschine der Ottobauart mit Direkteinspritzung
US6666186B2 (en) * 2001-02-01 2003-12-23 Avl List Gmbh Spark ignited internal combustion engine with at least one cylinder
US6745745B2 (en) 2002-02-22 2004-06-08 General Motors Corporation Combustion chamber for reverse tumble spark ignition direct injection engine
KR20040036040A (ko) * 2002-10-23 2004-04-30 현대자동차주식회사 연료분사 간섭방지를 위한 디젤엔진의 인젝터 장착구조
JP4147981B2 (ja) * 2003-03-13 2008-09-10 トヨタ自動車株式会社 直接筒内噴射式エンジンのインジェクタ配置構造
JP3982493B2 (ja) * 2003-12-24 2007-09-26 日産自動車株式会社 筒内噴射式内燃機関
CN101387238B (zh) * 2006-05-31 2010-08-04 卓贤成 活塞式缸盖内燃机
JP6515941B2 (ja) * 2017-03-27 2019-05-22 マツダ株式会社 火花点火式内燃機関
FR3071879B1 (fr) * 2017-09-29 2022-03-11 Ifp Energies Now Moteur a combustion interne a deux soupapes
JP6841245B2 (ja) * 2018-01-25 2021-03-10 トヨタ自動車株式会社 内燃機関
CN111954755B (zh) * 2018-04-10 2022-09-20 日产自动车株式会社 内燃机的燃烧室构造
JP2019210892A (ja) * 2018-06-07 2019-12-12 川崎重工業株式会社 エンジン

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Also Published As

Publication number Publication date
SE9700263D0 (sv) 1997-01-29
KR100239626B1 (ko) 2000-01-15
JP3148617B2 (ja) 2001-03-19
DE19703400A1 (de) 1997-07-31
SE9700263L (sv) 1997-07-31
CN1166571A (zh) 1997-12-03
SE517891C2 (sv) 2002-07-30
CN1093597C (zh) 2002-10-30
JPH09209761A (ja) 1997-08-12
US5816215A (en) 1998-10-06
DE19703400C2 (de) 1999-06-24

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