Ihi Corporation

Ishikawajima-harima Heavy Industries Co., Ltd.

Tetsuji Fujimura

Takashi Furukawa

Mitsutoshi Watanabe

Hiroyuki Ochiai

Ikuhisa Mizuta

Kuniyuki Imanari

The fan rotor blade () has a root () located at an end at the side of a rotary disk (), and a tip () located at an outer end in a radial direction of the rotary disk (), and extends from the root () to the tip (). The root () has an attached part () attached to a rotor blade fixing part () of the rotary disk (), and an extension part () extending from the attached part () toward the upstream side. An upstream end of the extension part () is a free end.

Fan rotor blade support structure and turbofan engine having the same

A blade as a main body of a rotor blade has a suction side made convex and a pressure side made concave so as to have an aerofoil profile. A squealer tip having a back face continuous to the suction side and a front face matching with a center plane of the blade is formed at a distal end of the blade. The front face is coated with a hard coating.

Compressor rotor

A turbofan engine has a fan on a front side thereof and a turbine driving the fan. The turbofan engine includes 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, and a rear moving blade detachably mounted on an outer circumferential surface of the disk. The spiral blade and the rear moving blade form a first-stage moving blade of the fan.

Growing community of inventors

Tokyo, Japan

Tetsuji Fujimura