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General Electric GE36

NASA GE UDF

General Electric GE36 je bil eksperimentalni propfan letalski motor, ki ga je razvijal ameriški General Electric Aircraft Engines v 1980ih.[1] [2] Propfan je križanec med turboventilatorskim (turbofan) in turbopropelerskim motorjem. Kdaj se za propfan uporablja tudi oznaka "ventilator brez okvirja" (Unducted fan - UDF) ali pa "odprti rotor" (open rotor). Prednosti propfana so manjša poraba goriva, kar je ta motor tudi uspešno demonstriral. Problem pa je velik hrup med delovanjem in nevarnost v primeru odloma lopatic ventilatorja. V času razvoja so cene nafte padle in posledično tudi zanimanje za propfane.

GE36 so zasnovali na podlagi vojaškega turbofana General Electric F404 (od lovca F-18). Motor je imel sorazmerno počasi rotirajočo nizkotlačno turbino. Ventilator je imel dva seta krakov, ki sta se vrtela v nasproptnih smereh - podobno kot pri kontrarotirajočem propelerju. Scimitar lopatice so imele nastavljiv vpadni kot.

GE36 naj bi omogočal potovalno hitrost Mach 0,75, kar je malce manj od trenutnih reaktivnih potniških letal.

Glej tudi

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Sklici

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  1. »Ultra High Bypass Jet Engine Green Technology Airline Flight Test«.
  2. »GE Reports – Honey I shrunk the World: How Materials Scientists Made the Globe Smaller«. Arhivirano iz prvotnega spletišča dne 7. oktobra 2016. Pridobljeno 23. aprila 2015.

Bibliografija

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Zunanje povezave

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General Electric GE36
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