KR102217236B1 - 유니플로 소기식 2사이클 엔진 - Google Patents
유니플로 소기식 2사이클 엔진 Download PDFInfo
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- KR102217236B1 KR102217236B1 KR1020197025528A KR20197025528A KR102217236B1 KR 102217236 B1 KR102217236 B1 KR 102217236B1 KR 1020197025528 A KR1020197025528 A KR 1020197025528A KR 20197025528 A KR20197025528 A KR 20197025528A KR 102217236 B1 KR102217236 B1 KR 102217236B1
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- cylinder
- scavenging
- piston
- fuel
- dead center
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- 230000002000 scavenging effect Effects 0.000 title claims abstract description 125
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 claims description 58
- 239000007789 gas Substances 0.000 claims description 45
- 239000002737 fuel gas Substances 0.000 claims description 39
- 239000007788 liquid Substances 0.000 claims description 14
- 230000009977 dual effect Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 18
- 238000002347 injection Methods 0.000 description 15
- 239000007924 injection Substances 0.000 description 15
- 239000000295 fuel oil Substances 0.000 description 11
- 230000007246 mechanism Effects 0.000 description 9
- 230000004048 modification Effects 0.000 description 9
- 238000012986 modification Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000010720 hydraulic oil Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000003949 liquefied natural gas Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- 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
-
- 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
-
- 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
- F02D13/0276—Actuation of an additional valve for a special application, e.g. for decompression, exhaust gas recirculation or cylinder scavenging
-
- 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
-
- 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
- F02D19/0602—Control of components of the fuel supply system
- F02D19/0613—Switch-over from one fuel to another
-
- 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
- F02F1/18—Other cylinders
- F02F1/22—Other cylinders characterised by having ports in cylinder wall for scavenging or charging
-
- 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
-
- 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
-
- 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)
- Oil, Petroleum & Natural Gas (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
Description
도 2는, 가동부의 구조를 설명하기 위한 설명도이다.
도 3a는, 도 2의 3A-3A선 단면도이다.
도 3b는, 도 2의 3B-3B선 단면도이다.
도 4는, 가동부의 동작을 설명하기 위한 설명도이다.
도 5는, 변형예에서의 유니플로 소기식 2사이클 엔진의 전체 구성을 나타내는 설명도이다.
110 실린더
114 피스톤
118 소기 포트
118a 개구 위치
150 가동부
152 상부 실린더
152b 하단면(단부)
154 하부 실린더
154a 상단면(단부)
Claims (4)
- 실린더와,
상기 실린더에 형성되고, 피스톤이 하사점으로 향하는 과정에서 개구되어, 그 실린더의 내부에 활성가스를 유입시키는 소기 포트와,
상기 소기 포트 중, 상기 피스톤의 상사점 측의 개구 위치를, 그 피스톤의 스트로크 방향으로 변위시키는 가동부를 구비하고,
상기 실린더는,
상기 소기 포트가 형성된 하부 실린더와,
상기 하부 실린더보다, 상기 피스톤의 상사점 측에 배치되는 상부 실린더를 가지며,
상기 가동부는, 상기 소기 포트의 위치를 상기 피스톤의 스트로크 방향으로 변화시키도록, 상기 소기 포트가 형성되어 있는 상기 하부 실린더를, 상기 상부 실린더에 대해 상기 피스톤의 스트로크 방향으로 변위시키도록 구성되어 있는 유니플로 소기식 2사이클 엔진. - 청구항 1에 있어서,
상기 하부 실린더 및 상기 상부 실린더 중 한쪽의 실린더의 단부는, 다른 쪽의 실린더의 내부에 상기 피스톤의 스트로크 방향으로 삽입되어 있는 유니플로 소기식 2사이클 엔진. - 청구항 2에 있어서,
상기 하부 실린더의 단부는, 상기 상부 실린더의 내부에 삽입되고,
상기 하부 실린더가 가장 상기 상사점 측으로 변위한 상태에서, 상기 소기 포트의 상기 상사점 측의 개구 위치가, 상기 상부 실린더의 상기 하사점 측의 단부보다, 상기 하사점 측인 유니플로 소기식 2사이클 엔진. - 청구항 1 내지 3 중 어느 한 항에 있어서,
연료를 액체 연료 및 연료 가스로 전환하는 듀얼 퓨얼형인 유니플로 소기식 2사이클 엔진.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2017/008746 WO2018163237A1 (ja) | 2017-03-06 | 2017-03-06 | ユニフロー掃気式2サイクルエンジン |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20190108621A KR20190108621A (ko) | 2019-09-24 |
KR102217236B1 true KR102217236B1 (ko) | 2021-02-18 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020197025528A Active KR102217236B1 (ko) | 2017-03-06 | 2017-03-06 | 유니플로 소기식 2사이클 엔진 |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3594469B1 (ko) |
JP (1) | JP6687155B2 (ko) |
KR (1) | KR102217236B1 (ko) |
CN (1) | CN110352294B (ko) |
DK (1) | DK3594469T3 (ko) |
WO (1) | WO2018163237A1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108561236B (zh) * | 2018-05-24 | 2023-11-24 | 天津大学 | 可变扫气相位的直流扫气式发动机气缸套、组件及发动机 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015124703A (ja) * | 2013-12-26 | 2015-07-06 | 本田技研工業株式会社 | 2ストロークエンジン |
JP2016089642A (ja) * | 2014-10-30 | 2016-05-23 | 株式会社Ihi | ユニフロー掃気式2サイクルエンジン |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3815566A (en) * | 1973-02-08 | 1974-06-11 | J Staggs | Engine |
JPS62243918A (ja) * | 1986-04-15 | 1987-10-24 | Mitsubishi Heavy Ind Ltd | 掃気孔管制装置 |
JPH07324626A (ja) * | 1994-05-31 | 1995-12-12 | Mitsubishi Heavy Ind Ltd | 掃気孔管制弁を具えたユニフロー掃気式2サイクルディーゼル機関 |
EP0851101B1 (de) * | 1996-12-24 | 2002-07-10 | Wärtsilä Schweiz AG | Dieselmotor |
DE19700412A1 (de) * | 1997-01-09 | 1997-07-31 | Hermann Fazis | Zweitakt-Dieselmotor mit Gleichstromspülung, mit Einlaßschieber und Auslaßventilen vom Arbeitskolben gesteuert |
JP4279123B2 (ja) * | 2003-04-21 | 2009-06-17 | 三菱重工業株式会社 | 掃気管制弁装置を備えた内燃機関 |
CN1558100A (zh) * | 2004-01-28 | 2004-12-29 | 赖大鹏 | 电控滑门排气阀长行程直流扫气增压二冲程柴油机 |
JP2012219727A (ja) * | 2011-04-11 | 2012-11-12 | Diesel United:Kk | 予混合式2ストローク機関 |
WO2014181867A1 (ja) * | 2013-05-10 | 2014-11-13 | 株式会社Ihi | ユニフロー掃気式2サイクルエンジン |
JP6334916B2 (ja) * | 2013-12-27 | 2018-05-30 | 川崎重工業株式会社 | 屋内貯蔵設備 |
JP6280763B2 (ja) | 2014-02-17 | 2018-02-14 | 三菱重工業株式会社 | 液体燃料供給システム |
US9194344B1 (en) * | 2014-05-28 | 2015-11-24 | Electro-Motive Diesel, Inc. | Dual fuel engine having selective compression reduction |
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2017
- 2017-03-06 EP EP17899392.9A patent/EP3594469B1/en active Active
- 2017-03-06 JP JP2019503829A patent/JP6687155B2/ja active Active
- 2017-03-06 KR KR1020197025528A patent/KR102217236B1/ko active Active
- 2017-03-06 CN CN201780088019.8A patent/CN110352294B/zh active Active
- 2017-03-06 WO PCT/JP2017/008746 patent/WO2018163237A1/ja active Application Filing
- 2017-03-06 DK DK17899392.9T patent/DK3594469T3/da active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015124703A (ja) * | 2013-12-26 | 2015-07-06 | 本田技研工業株式会社 | 2ストロークエンジン |
JP2016089642A (ja) * | 2014-10-30 | 2016-05-23 | 株式会社Ihi | ユニフロー掃気式2サイクルエンジン |
Also Published As
Publication number | Publication date |
---|---|
EP3594469B1 (en) | 2025-01-15 |
JP6687155B2 (ja) | 2020-04-22 |
CN110352294A (zh) | 2019-10-18 |
EP3594469A1 (en) | 2020-01-15 |
DK3594469T3 (da) | 2025-02-17 |
CN110352294B (zh) | 2021-09-14 |
JPWO2018163237A1 (ja) | 2019-11-21 |
KR20190108621A (ko) | 2019-09-24 |
WO2018163237A1 (ja) | 2018-09-13 |
EP3594469A4 (en) | 2020-08-12 |
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