Mitsubishi Heavy Industries Limited

Yukio Akizuki

Hiroaki Takeuchi

Shiro Takada

Kaoru Iwasaki

Keiichirou Kawano

Yuji Matsunami

Takero Makino

Akihiko Matsui

A method of repairing a bearing of a wind turbine generator is provided which is able to more permanently repair a gap which occurred between a constituent member of the wind turbine generator and a bearing ring of the bearing. For example, in the case of repairing the gapbetween the main shaft outer cylinderof the wind turbine generatorand the outer ringA of the main bearing, the plateis inserted between the main shaft outer cylinderand the outer ringA, and also the plateis fixed to an inner circumferential surface of the main shaft outer cylinderby the adhesive agent. On the other hand, slip is permitted between the plateand the outer ringA of the main bearing

Method of repairing bearing of wind turbine generator

The present invention is to provides a foil gas bearing which has sufficient damping effects due to a frictional force and a sufficient stiffness to support the rotary shaft. The foil gas bearing has a rotary shaft retainer for retaining a rotary shaft; and a back spring for preventing the displacement of the rotary shaft, which is provided between rotary shaft and rotary shaft retainer. Plural protrusions are formed at one element, which is either the rotary shaft retainer or the back spring. Plural recesses are formed at the other elements, which is either the back spring or the rotary shaft retainer at places which correspond to the protrusions. The protrusions partially fit into the recesses.

Foil gas bearing

Growing community of inventors

Tokyo, Japan

Yukio Akizuki