Adamant Faith

Thierry Dubois

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Adamant Faith

机译：精金信仰

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Safran Aircraft Engines now has clearly plotted the technological trajectory a counter-rotating open-rotor (CROR) engine can be part of, somewhere between an ultra-high-bypass-ratio (UHBR) turbofan and a boundary-layer-ingestion (BLI) configuration. Despite wavering interest from the rest of the industry, the France-based company believes its ground demonstrator here is proving the architecture is certifiable in terms of both safety and noise. It says it would be an efficient powerplant for the 2030-35 generation of narrowbody aircraft. The CROR concept has to be evaluated long before a commercial program can be launched. It would be a greater breakthrough than the UHBR, a geared turbofan with a bypass ratio of 15. The latter could be ready in the 2025-30 time frame and is Airbus' priority. In Safran's view, the CROR, with its bypass ratio of 30, would be next. That would precede an engine designed for BLI, in 2040-45.

机译：赛峰飞机发动机公司现在已经清楚地画出了反向旋转开式转子（CROR）发动机可以组成的技术轨迹，介于超高旁路比（UHBR）涡扇和边界层吸入（BLI）之间组态。尽管该行业的其他公司对此产生了兴趣，但这家总部位于法国的公司仍然认为其地面演示器证明了该体系结构在安全性和噪声方面均可以认证。它说这将是2030-35代窄体飞机的高效动力装置。必须在启动商业程序之前就对CROR概念进行评估。这将比绕行比为15的齿轮传动涡扇发动机UHBR取得更大的突破。后者可能在2025-30的时间范围内准备就绪，这是空客公司的首要任务。赛峰认为，CROR的旁通率为30，将是下一个。在2040-45年为BLI设计的发动机之前。

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《Aviation Week & Space Technology》 |2017年第25期|28-28|共1页
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Thierry Dubois;
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收录信息美国《工程索引》(EI);
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Adamant Faith

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