×

Turbofan engine

  • US 7,721,526 B2
  • Filed: 06/28/2006
  • Issued: 05/25/2010
  • Est. Priority Date: 06/28/2006
  • Status: Active Grant
First Claim
Patent Images

1. A turbofan engine having a fan on a front side thereof and a turbine driving the fan, the turbofan engine further comprising:

  • a disk rotationally driven by the turbine;

    a spinner detachably mounted at a front side of the disk;

    a spiral blade integrally mounted on a surface of the spinner, wherein the spiral blade is spirally extended to an axial position of a front end portion of the spinner; and

    a rear moving blade detachably mounted on an outer circumferential surface of the disk at the downstream side of the spiral blade;

    wherein the spiral blade and the rear moving blade form a first-stage moving blade of the fan,the spiral blade has a rear end having a first radial height defined with respect to an axis of the engine, andthe rear moving blade has a second radial height, defined with respect to the axis, that is greater than the first radial height.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×