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Freelance translator and/or interpreter, Verified site user
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Services
Translation, Editing/proofreading, Transcription
Expertise
Specializes in:
Social Science, Sociology, Ethics, etc.
Tourism & Travel
Economics
Environment & Ecology
Manufacturing
Mechanics / Mech Engineering
Computers: Software
Computers: Hardware
Automotive / Cars & Trucks
Also works in:
Music
Education / Pedagogy
General / Conversation / Greetings / Letters
Government / Politics
Nutrition
Science (general)
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Rates
Portuguese to English - Rates: 0.07 - 0.12 USD per word Japanese to English - Rates: 0.08 - 0.12 USD per character Spanish to English - Rates: 0.08 - 0.10 USD per word
Japanese to English: Fuel Injection Technology General field: Tech/Engineering Detailed field: Automotive / Cars & Trucks
Source text - Japanese 近年、地球温暖化防止のため、二酸化炭素排出量の低減が急務である。そのために自動車用エンジンとしてガソリンより熱効率の高いディーゼルエンジンが注目されている。しかし、ディーゼルエンジンは燃焼騒音や排気中の黒煙および窒素酸化物の低減という課題を有していたが、これらは、コモンレールシステムによる燃料噴射時期、圧力および噴射率の最適化、過給の採用により改善されつつある。一方、これら新技術はピストン周りの潤滑状態を悪化させる。
｛省略｝
ディーゼルパティキュレートフィルタ再生のためのポスト噴射は、主噴射直後に行う場合、上死点近傍のシリンダー温度の上昇により、後期のポスト噴射は、その噴霧のシリンダーへの付着によりピストン潤滑状態を悪化させることがわかった。更に多段噴射時に過給を行う場合、早期のパイロット噴射及び後期のポスト噴射はピストン潤滑状態を一層悪化させることがわかった。従って多段噴射を行う場合、その噴射時期を、燃料がシリンダーに付着しない時期にすべきであることがわかった。
Translation - English With the urgent need in recent years to help prevent global warming by reducing carbon dioxide emissions, highly fuel-efficient diesel engines have attracted attention away from gasoline engines for use in automobiles. The diesel engine's problems with combustion noise and with black smoke and nitrogen oxides in the exhaust are being corrected by optimizing and supercharging the fuel pressure, injection rate, and injection timing with the common rail system. On the other hand, these new technologies worsen the conditions for lubrication around the pistons.
[omission]
When the post-injection for diesel particulate filter regeneration comes immediately after the main injection, piston lubrication conditions are worsened by an increase in cylinder temperature in the vicinity of top dead center; with late-cycle post-injection, piston lubrication conditions are worsened when the spray sticks to the cylinder. Furthermore, it is clear that when supercharging with multi-stage injections, the early-cycle pilot injection and late-cycle post-injection made piston lubrication conditions even worse. Accordingly, it is clear that when using multi-stage injections, the injection must be timed so that fuel does not stick to the cylinder.
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Experience
Years of experience: 17. Registered at ProZ.com: Jan 2007.
Adobe Illustrator, Adobe Photoshop, Microsoft Excel, Microsoft Word, Powerpoint
CV/Resume
CV available upon request
Bio
I am a freelance Japanese/Portuguese to English translator with several years of experience in the field, with a variety of different source materials. I lived and worked for seven and a half years in Japan and four in Brazil. I take pride in producing accurate translations that read smoothly, and I never miss a deadline.
Expertise