Ihi Corporation

Xinglong Yan

Akihito Otani

Satoshi Takahashi

Takahiro Shimada

Hiroyuki Sato

Satoru Kai

Yoshiyuki Imai

Tomohiko Yamamoto

A floating-type base isolation system includes: a liquid storage portion storing liquid; a floating structure floated and arranged on the liquid; and a gas accommodation space formed at a position in contact with the liquid and accommodating gas. A volume of the gas accommodation space is set based on a natural frequency of a system that responds to a seismic wave propagating in fluid including the liquid and the gas.

Floating-type base isolation system

A rotary device for a nuclear power facility, the rotary device being placed in a circuit for coolant containing radioactive nuclides in the nuclear power facility. The rotary device includes: a casing; and a rotary mechanism provided with, in the casing, a rotor and a rotor shaft that come into contact with the coolant containing the radioactive nuclides passing through the casing. Regarding the casing and the rotary mechanism, at least the rotor and the rotor shaft of the rotary mechanism comprise a low-effective diffusion coefficient alloy having a lower effective diffusion coefficient than a polycrystalline alloy.

Rotary device for nuclear power facility

Growing community of inventors

Naka, Japan

Xinglong Yan