KR102312788B1 - 선박용 엔진 - Google Patents
선박용 엔진 Download PDFInfo
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- KR102312788B1 KR102312788B1 KR1020207021327A KR20207021327A KR102312788B1 KR 102312788 B1 KR102312788 B1 KR 102312788B1 KR 1020207021327 A KR1020207021327 A KR 1020207021327A KR 20207021327 A KR20207021327 A KR 20207021327A KR 102312788 B1 KR102312788 B1 KR 102312788B1
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- 238000007906 compression Methods 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 18
- 238000013459 approach Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000446 fuel Substances 0.000 abstract description 26
- 238000002347 injection Methods 0.000 abstract description 18
- 239000007924 injection Substances 0.000 abstract description 18
- 230000007423 decrease Effects 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 16
- 238000002485 combustion reaction Methods 0.000 description 12
- 230000002000 scavenging effect Effects 0.000 description 11
- 239000007789 gas Substances 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 8
- 239000010720 hydraulic oil Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
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- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
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- 230000000979 retarding effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D15/00—Varying compression ratio
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1497—With detection of the mechanical response of the engine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/21—Control means for engine or transmission, specially adapted for use on marine vessels
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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
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
- F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
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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
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
- F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines
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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
- F02B75/00—Other engines
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
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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
- F02B75/00—Other engines
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
- F02B75/045—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable connecting rod length
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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
- F02B75/00—Other engines
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
- F02B75/047—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of variable crankshaft position
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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
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/085—Safety, indicating, or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/028—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation for two-stroke engines
- F02D13/0284—Variable control of exhaust valves only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D15/00—Varying compression ratio
- F02D15/02—Varying compression ratio by alteration or displacement of piston stroke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/14—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
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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
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/10—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/28—Control for reducing torsional vibrations, e.g. at acceleration
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- 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
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
도 2는, 피스톤 로드와 크로스헤드핀(crosshead pin)과의 연결 부분을 추출한 추출도이다.
도 3는, 선박용 엔진의 기능 블록도이다.
도 4는, 바드 레인지를 설명하기 위한 도면이다.
도 5의 (a)는, 크랭크샤프트에 작용하는 토크와 압축비의 관계를 설명하기 위한 도면이다. 도 5의 (b)는, 도 5의 (a)에 나타낸 토크의 변동을 조화(調和) 해석한 결과를 나타낸 도면이다.
도 6은, 실린더 내압(內壓)의 변화를 설명하기 위한 도면이다.
도 7은, 압축비 제어부에 의한 하강 처리의 흐름을 나타낸 플로우차트이다.
Claims (3)
- 피스톤; 및
엔진 회전수가, 미리 설정된 공진(共振) 발생 범위에 포함될 때, 크랭크샤프트(crankshaft)의 토션 응력(torsional stress)이 상기 크랭크샤프트의 허용 응력을 초과하지 않도록, 상기 피스톤의 상사점 위치를 하사점 측으로 이동시키는 하강 처리를 수행하는 압축비 제어부;
를 포함하고,
상기 압축비 제어부는, 상기 하강 처리에 있어서, 상기 토션 응력이 상기 허용 응력을 초과하지 않는 범위에서 상기 허용 응력에 가까워지도록, 상기 피스톤의 상사점 위치를 제어하는,
선박용 엔진. - 제1항에 있어서,
상기 크랭크샤프트의 회전 변동을 검출하는 검출부를 더 포함하고,
상기 압축비 제어부는, 상기 하강 처리에 있어서, 검출된 상기 회전 변동으로부터 특정되는 상기 토션 응력이 상기 허용 응력을 초과하지 않는 범위에서 상기 허용 응력에 가까워지도록, 상기 피스톤의 상사점 위치를 피드백 제어하는, 선박용 엔진. - 삭제
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018050004A JP6866325B2 (ja) | 2018-03-16 | 2018-03-16 | 舶用エンジン |
JPJP-P-2018-050004 | 2018-03-16 | ||
PCT/JP2019/010588 WO2019177108A1 (ja) | 2018-03-16 | 2019-03-14 | 舶用エンジン |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20200096654A KR20200096654A (ko) | 2020-08-12 |
KR102312788B1 true KR102312788B1 (ko) | 2021-10-13 |
Family
ID=67907208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020207021327A Active KR102312788B1 (ko) | 2018-03-16 | 2019-03-14 | 선박용 엔진 |
Country Status (6)
Country | Link |
---|---|
US (1) | US11131254B2 (ko) |
EP (1) | EP3767094A4 (ko) |
JP (1) | JP6866325B2 (ko) |
KR (1) | KR102312788B1 (ko) |
CN (1) | CN111836955B (ko) |
WO (1) | WO2019177108A1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP7127003B2 (ja) * | 2019-10-30 | 2022-08-29 | 株式会社Ihi原動機 | エンジン |
NO348568B1 (no) * | 2020-05-29 | 2025-03-10 | Lars Harald Heggen | Gassveksling i forbrenningsmotorer for økt virkningsgrad |
JP7507698B2 (ja) | 2021-01-13 | 2024-06-28 | 株式会社三井E&S Du | エンジン |
CN118669392B (zh) * | 2024-08-22 | 2025-01-24 | 武汉理工大学 | 一种船用低速机各气缸压缩比一致性测试装置及测试方法 |
Citations (4)
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JP2001123857A (ja) * | 1996-07-18 | 2001-05-08 | Toyota Motor Corp | 駆動装置 |
JP2007032388A (ja) | 2005-07-26 | 2007-02-08 | Denso Corp | 内燃機関の始動制御装置 |
JP2007170198A (ja) | 2005-12-19 | 2007-07-05 | Toyota Motor Corp | 内燃機関のトルク制御装置 |
JP2010242690A (ja) * | 2009-04-09 | 2010-10-28 | Nissan Motor Co Ltd | 可変圧縮比内燃機関の制御装置 |
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JP3004307U (ja) | 1994-05-17 | 1994-11-15 | 幸子 横田 | 靴の汚損防止具 |
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2018
- 2018-03-16 JP JP2018050004A patent/JP6866325B2/ja active Active
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2019
- 2019-03-14 WO PCT/JP2019/010588 patent/WO2019177108A1/ja active Application Filing
- 2019-03-14 CN CN201980019829.7A patent/CN111836955B/zh active Active
- 2019-03-14 EP EP19767911.1A patent/EP3767094A4/en active Pending
- 2019-03-14 KR KR1020207021327A patent/KR102312788B1/ko active Active
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2020
- 2020-06-05 US US16/894,749 patent/US11131254B2/en active Active
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JP2001123857A (ja) * | 1996-07-18 | 2001-05-08 | Toyota Motor Corp | 駆動装置 |
JP2007032388A (ja) | 2005-07-26 | 2007-02-08 | Denso Corp | 内燃機関の始動制御装置 |
JP2007170198A (ja) | 2005-12-19 | 2007-07-05 | Toyota Motor Corp | 内燃機関のトルク制御装置 |
JP2010242690A (ja) * | 2009-04-09 | 2010-10-28 | Nissan Motor Co Ltd | 可変圧縮比内燃機関の制御装置 |
Also Published As
Publication number | Publication date |
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JP2019157843A (ja) | 2019-09-19 |
EP3767094A4 (en) | 2021-12-15 |
EP3767094A1 (en) | 2021-01-20 |
KR20200096654A (ko) | 2020-08-12 |
US11131254B2 (en) | 2021-09-28 |
US20200300183A1 (en) | 2020-09-24 |
CN111836955A (zh) | 2020-10-27 |
WO2019177108A1 (ja) | 2019-09-19 |
JP6866325B2 (ja) | 2021-04-28 |
CN111836955B (zh) | 2022-12-06 |
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