KR102595693B1 - 이중 연료 인젝터, 이중 연료 시스템, 내연기관 및 내연기관의 작동 방법 - Google Patents
이중 연료 인젝터, 이중 연료 시스템, 내연기관 및 내연기관의 작동 방법 Download PDFInfo
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- 239000000446 fuel Substances 0.000 title claims abstract description 250
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims description 7
- 230000009977 dual effect Effects 0.000 claims abstract description 70
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 238000005461 lubrication Methods 0.000 claims abstract description 28
- 239000010687 lubricating oil Substances 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 claims abstract description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 15
- 230000001419 dependent effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000003915 liquefied petroleum gas Substances 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic 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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
- F02M43/04—Injectors peculiar thereto
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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
- F02D19/0602—Control of components of the fuel supply system
- F02D19/0607—Control of components of the fuel supply system to adjust the fuel mass or volume flow
- F02D19/061—Control of components of the fuel supply system to adjust the fuel mass or volume flow by controlling fuel injectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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- 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
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0686—Injectors
- F02D19/0689—Injectors for in-cylinder direct injection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0686—Injectors
- F02D19/0694—Injectors operating with a plurality of fuels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
- F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
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- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
- F02M21/026—Lift valves, i.e. stem operated valves
- F02M21/0263—Inwardly opening single or multi nozzle valves, e.g. needle valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0275—Injectors for in-cylinder direct injection, e.g. injector combined with spark plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0064—Layout or arrangement of systems for feeding fuel for engines being fed with multiple fuels or fuels having special properties, e.g. bio-fuels; varying the fuel composition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
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- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1873—Valve seats or member ends having circumferential grooves or ridges, e.g. toroidal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0001—Fuel-injection apparatus with specially arranged lubricating system, e.g. by fuel oil
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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
- F02D19/0639—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 characterised by the type of fuels
- F02D19/0642—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 characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—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 characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
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- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
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- F02D19/0639—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 characterised by the type of fuels
- F02D19/0649—Liquid fuels having different boiling temperatures, volatilities, densities, viscosities, cetane or octane numbers
- F02D19/0652—Biofuels, e.g. plant oils
- F02D19/0655—Biofuels, e.g. plant oils at least one fuel being an alcohol, e.g. ethanol
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- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
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Abstract
Description
도 2는 폐쇄 상태인 제2 노즐 밸브 영역에서의 이중 연료 시스템의 이중 연료 인젝터로부터의 발췌도.
도 3은 제2 노즐 밸브의 개방 상태에서의 도 2의 발췌도.
3 : 실린더 헤드 4 : 피스톤
5 : 연소실 6 : 이중 연료 인젝터
7 : 노즐 밸브 8 : 제1 연료
9 : 노즐 밸브 10 : 제2 연료
11 : 연료 공급 시스템 12 : 저장조
13 : 연료 펌프 14 : 연료 공급 시스템
15 : 저장조 16 : 연료 펌프
17 : 저장조 18 : 스위칭 밸브
19 : 실링 및 윤활 오일 시스템 20 : 저장조
21 : 노즐 니들 22 : 니들 안내부
23 : 기본 본체 24 : 니들 연료실
25 : 공급 라인 26 : 윤곽
27 : 밸브 시트 28 : 오리피스
29 : 니들 윤활실
Claims (10)
- 내연기관(1)의 실린더(2)를 위한 이중 연료 인젝터(6)로서,
제1 연료를 각각의 실린더(2)의 연소실(5)로 도입할 수 있는 적어도 하나의 제1 노즐 밸브(7) 및 제2 연료를 각각의 실린더(2)의 연소실(5)로 도입할 수 있는 적어도 하나의 제2 노즐 밸브(9)를 포함하고,
각각의 제2 노즐 밸브(9) 영역에서, 각각의 제2 노즐 밸브(9)의 노즐 니들(21)이 이 노즐 밸브의 니들 안내부(22)에서 안내되고, 니들 안내부(22)는 적어도 부분적으로 니들 연료실(24)을 획정하며, 니들 연료실에는 공급 라인(25)을 통해 정해진 연료 압력을 지닌 제2 연료가 공급될 수 있으며,
각각의 제2 노즐 밸브(9) 영역에서, 각각의 제2 노즐 밸브(9)의 니들 안내부(22)에는, 한편으로는 제2 연료가 니들 안내부(22)를 통해 주위로 빠져나가는 것을 방지하고, 다른 한편으로는 니들 안내부(22)에 있는 각각의 노즐 니들(21)을 윤활하기 위해 실링 및 윤활 오일이 공급될 수 있고,
각각의 제2 노즐 밸브(9)에는, 각각의 실린더(2)의 주입 사이클에 따라 공급 라인(25)을 통해 각각의 제2 노즐 밸브(9)의 각각의 니들 연료실(24)에 제2 연료를 공급하는 스위칭 밸브(18)가 할당되어, 니들 연료실(24)에는 주입 사이클에 따라 제2 연료의 연료 압력이 존재하고,
각각의 제2 노즐 밸브(9)의 니들 안내부(22)는 적어도 부분적으로 실링 및 윤활 오일이 공급될 수 있는 니들 윤활실(29)을 획정하며, 이 니들 윤활실은 주입 사이클에 따라 각각의 니들 연료실(24)에 제2 연료의 연료 압력이 존재할 때에 제2 연료가 니들 윤활실(29)의 영역에 진입하지 않도록 하는 방식으로 크기가 정해지는, 각각의 니들 연료실(24)로부터의 거리(X)를 갖고,
상기 실링 및 윤활 오일의 오일 압력은 제2 연료의 연료 압력보다 낮은 것을 특징으로 하는 이중 연료 인젝터. - 제1항에 있어서, 이중 연료 인젝터는 하나의 중앙 제1 노즐 밸브(7)를 포함하는 것을 특징으로 하는 이중 연료 인젝터.
- 제1항 또는 제2항에 있어서, 이중 연료 인젝터는 다수의 제2 노즐 밸브(9)를 포함하는 것을 특징으로 하는 이중 연료 인젝터.
- 제3항에 있어서, 제2 노즐 밸브(9)는 제1 노즐 밸브(7) 주위에 배치되는 것을 특징으로 하는 이중 연료 인젝터.
- 제3항에 있어서, 제2 노즐 밸브(9)에는 공동 스위칭 밸브(18)가 할당되는 것을 특징으로 하는 이중 연료 인젝터.
- 제1항 또는 제2항에 있어서, 스위칭 밸브(18)는 이중 연료 인젝터(6)의 기본 본체(23) 외부에 배치되는 것을 특징으로 하는 이중 연료 인젝터.
- 내연기관의 이중 연료 시스템으로서,
내연기관의 각각의 실린더(2)를 위한 제1항 또는 제2항에 따른 이중 연료 인젝터(6),
제1 연료를 각각의 이중 연료 인젝터(6)에 공급할 수 있는 제1 연료 공급 시스템(11),
제2 연료를 각각의 이중 연료 인젝터(6)에 공급할 수 있는 제2 연료 공급 시스템(14), 및
각각의 이중 연료 인젝터(6)에 실링 및 윤활 오일을 공급할 수 있는 실링 및 윤활 오일 시스템(19)
을 포함하는 내연기관의 이중 연료 시스템. - 제7항에 있어서,
제2 연료 공급 시스템(14)은 정해진 연료 압력으로 제2 연료를 공급하고,
실링 및 윤활 오일 시스템(19)은 제2 연료의 연료 압력보다 낮은, 정해진 오일 압력으로 실링 및 윤활 오일을 공급하는 것을 특징으로 하는 내연기관의 이중 연료 시스템. - 내연기관으로서,
적어도 하나의 실린더(2), 및
제7항에 따른 이중 연료 시스템
을 포함하는 내연기관. - 제9항에 따른 내연기관(1)의 작동 방법으로서,
각각의 제2 노즐 밸브(9)에, 각각의 실린더(2)의 주입 사이클에 따라 제2 연료가 공급되는 것인 내연기관의 작동 방법.
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DE102020116709B4 (de) | 2020-06-25 | 2024-03-07 | Man Energy Solutions Se | Dual-Fuel Brennkraftmaschine |
DE102020116707A1 (de) | 2020-06-25 | 2021-12-30 | Man Energy Solutions Se | Kraftstoffinjektor einer Dual-Fuel Brennkraftmaschine und Dual-Fuel Brennkraftmaschine |
DE102020116710A1 (de) | 2020-06-25 | 2021-12-30 | Man Energy Solutions Se | Dual-Fuel Brennkraftmaschine |
DE102020127782A1 (de) | 2020-10-22 | 2022-04-28 | Man Energy Solutions Se | Kraftstoffinjektor einer Dual-Fuel Brennkraftmaschine, Dual-Fuel Brennkraftmaschine und Verfahren zu Betreiben derselben |
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KR20230110019A (ko) * | 2022-01-14 | 2023-07-21 | 현대자동차주식회사 | 자동차의 내연 기관 내로 개선제로 농축된 연료를 직접 분사하기 위한 방법 및 시스템 |
JP2024172407A (ja) | 2023-05-31 | 2024-12-12 | 株式会社ジャパンエンジンコーポレーション | 燃料供給ポンプ |
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