| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbofan engine capable of increasing the intake air flow of a fan single-stage moving blade without increasing the diameter of a fan and the inside diameter of a casing, thereby increasing bypass ratio to achieve low fuel consumption and low noise while reducing engine weight. SOLUTION: The turbofan engine has the fan single-stage moving blade 2 for admitting air, and a spinner 4 for driving the fan single-stage moving blade to rotate it. The spinner 4 has a spiral vane 6 on its front face. The spiral vane 6 extends radially outwardly and spirally from its axis X and sucks air from the front face of the spinner to supply the air to the fan single-stage moving vane. COPYRIGHT: (C)2004,JPO
|
