National Maritime Research Institute

Mitsubishi Heavy Industries Limited

Kawasaki Jukogyo Kabushiki Kaisha

Mitsui Engineering and Shipbuilding Company Limited

Nippon Yusen Kabushiki Kaisha

National Institute of Maritime, Port and Aviation Technology

Japan Marine United Corporation

Tsuneishi Shipbuilding Co., Ltd.

Oshima Shipbuilding Co., Ltd.

Imabari Shipbuilding Co., Ltd.

Sumitomo Heavy Industries Marine & Engineering Co., Ltd.

Kazuyoshi Harumi

Hideki Kawashima

Shuji Mizokami

Tetsugo Fukuda

Yoshiaki Kodama

Munehiko Hinatsu

Toshifumi Hori

Masahiko Makino

Masashi Ohnawa

Haruya Takeshi

Tadanori Takimoto

Tsuyoshi Ishiguro

Kazutoshi Arai

Masaki Adachi

Satoshi Keirinboh

Keishi Kuwada

Kazuyuki Ebira

Yukito Higaki

Kazuaki Matsuo

Jiangang Shi

Hiroyuki Murata

A inject gas control device that performs, for example, control reflecting variation in vessel velocity over time without adversely affecting the main engine is realized. That is, it is prevented that gas is drawn too much and thereby a gas supply or charged air rate becomes insufficient, efficiency of the main engine is decreased and exhaust gas is deteriorated, and analogous events occur because the gas supply or charged air rate is too much instead. There are provided a main engineacquiring propelling power for a vessel, and a turbochargerthat is driven by exhaust gas from the main engineand blows pressurized gas to the main engine. A part of the pressurized gas and/or exhaust gas is drawn from between the turbochargerand the main engine(and). The drawn pressurized gas and/or exhaust gas are injected in the proximityof the hull on or below the waterline (), and the drawing rate of the pressurized gas and/or the exhaust gas is controlled on the basis of a physical quantity related to a heat load on the main engineand characteristics of the turbocharger ().

Frictional resistance reduction device for ship

Growing community of inventors

Tokyo, Japan

Kazuyoshi Harumi