Composite reinforcement of metallic airfoils
Method of fabricating hollow composite airfoils
Rotor aerofoil blade containment
Mass loaded composite rotor for vibro-acoustic application
Blower with improved impeller vanes
Composite blade with partial length spar
ApplicationNo. 533478 filed on 09/25/1995
US Classes:416/241A, Plastic or synthetic material416/229R, Laminated, embedded member or encased material416/230Wire, fiber, strand or fabric
ExaminersPrimary: Look, Edward K.
Assistant: Sgantzos, Mark
Attorney, Agent or Firm
Foreign Patent References
International ClassF01D 005/14
AbstractA lightweight, impact-resistant gas turbine blade, such as an aircraft engine fan blade, has a metal solid section, composite or structural/syntactic foam segments, and metal solid spars all attached together to define an airfoil portion. The solid section includes the leading edge, blade tip, and trailing edge. The segments together are bounded in part by the solid section near the leading edge, blade tip, and trailing edge. The solid spars separate and are attached to the segments.