Turbofan engine

F - Mech Eng,Light,Heat,Weapons – 04 – D

Patent

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Details

F04D 29/32 (2006.01) F02C 7/04 (2006.01) F02K 3/06 (2006.01) F04D 29/38 (2006.01)

Patent

CA 2564242

A turbofan engine, comprising a fan 1-stage moving blade for taking in air and a spinner rotatingly driving the fan 1-stage moving blade. The spinner comprises a spiral vane spirally extending to the radial other side, sucking air from the front of the spinner, and supplying it to the fan 1-stage moving blade. Also, the fan 1-stage moving blade and the spinner are integrally connected to each other, and the spiral vane and the fan 1-stage moving blade are so formed that their surfaces can be smoothly joined to each other.

La présente invention concerne un moteur à double flux comprenant une pale mobile de premier étage de ventilateur destinée à admettre de l~air et une casserole entraînant en rotation la pale mobile de premier étage de ventilateur. La casserole comprend une aube spirale s~étendant en spirale vers l~autre côté radial, aspirant l~air depuis l~avant de la casserole et l~alimentant vers la pale mobile de premier étage de ventilateur. De même, lesdites pale mobile de premier étage de ventilateur et casserole sont reliées d~un seul tenant l~une à l~autre et l~aube spirale et la lame mobile de premier étage de ventilateur sont formées de sorte que leurs surfaces puissent être jointes de façon uniforme.

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