Ishikawajima-Harima Heavy Industries Co., Ltd.

Ishikawajima-Harima Jukogyo Kabushiki Kaisha

Fumio Hayashi

Akio Yamada

Hiroshi Dazai

Masanori Watanabe

Provided are an ozone generator,for generating ozone, an atomizer nozzle,arranged inside and adjacent to a top of a sewage-treating waste water treatment vessel,for spraying ozone and water in mixture, a compressor,for supplying ozone generated by the ozone generator,to the atomizer nozzle,and a pump,for supplying water to the atomizer nozzle,Surface of the sewage is covered with ozone and fine water particles which are sprayed from the atomizer nozzle,into the waste water treatment vessel,and hydroxyl radical with high activity is generated by the ozone and water molecules In the fine water particles to oxidize the smell components, resulting in suppressing diffusion of offensive smell out of the waste water treatment vessel

Ozone deodorizer

A rotating speed control system for a pneumatically driven spindle used in a machine tool, comprises a spindle possessing a male-threaded part, a turbine mounted on the spindle by a nut with a convexo-concave portion being formed in one face thereof, a casing for accommodating the spindle and the turbine, an air supply line connected to the casing so as to supply air to drive the turbine, a valve disposed in the air supply line so as to adjust the flow rate of the air to be supplied to the turbine, a sensor facing the convexo-concave portion of the nut so as to detect the rotating speed of the turbine, and a control circuit for comparing a sensor detected rotating speed with a predetermined rotating speed and for adjusting the valve in accordance with the difference between two rotating speeds, so as to reduce the difference.

Growing community of inventors

Tokyo, Japan

Fumio Hayashi