Sony Corporation

Mitsubishi Heavy Industries Limited

Mitsubishi Electric Corporation

Seikosha Co., Ltd.

Hitoshi Ito

Yasuhiro Ikeda

Yasushi Fujita

Yuji Himeno

Toshihiko Matsuo

Takanobu Otani

Yasushi Takayama

Tomoki Hanada

Hiroshi Kuzumi

Hidekazu Uehara

Takeshi Funahashi

Yoshiyasu Kubota

Masaru Sakai

Yuji Harada

Takuya Wada

Akihiko Umeda

Shigeo Matsumoto

Keiichi Shinozaki

Kouji Hirose

Hiroyuki Kakisako

Kentarou Saeki

Shigeki Koumoto

Kozo Maeta

Masanori Kawamura

Hiroomi Sakuma

Kazuhito Yoshida

Hiroyuki Tokumasu

A multistage shaft sealing apparatus includes a first sealing unit, a second sealing unit, and a third sealing unit provided, in a sequential order from a side of the apparatus closer to inside of the apparatus, in a fluid leakage passage formed between the rotating shaft or the rotating member and a housing located to surround the rotating shaft or the rotating member. The first sealing unit includes a first runner and a first sealing ring which form a non-contact-type sealing surface; the second sealing unit includes a second runner and a second sealing ring which form a contact-type sealing surface; the third sealing unit includes a third runner and a third sealing ring which form a contact-type sealing surface, and a purge water supply passage supplying purge water to the third sealing unit and a purge water discharge passage discharging the purge water supplied to the third sealing unit.

Multistage shaft sealing apparatus and rotary machine

The shaft sealing structure includes a seal ring that has abutment portions formed by dividing the seal ring along the axial direction and that is provided around a main shaft in a ring-like manner; a support member that is provided in the seal ring along the circumferential direction of the main shaft; and a thermoswitch that is connected to the support member between the abutment portions and that presses the support member toward the center of the main shaft when the temperature rises to a temperature higher than that during normal operation, in which the seal ring is fixed at a position separated from the main shaft during the normal operation and is moved by the support member toward the center of the main shaft when the temperature rises to a temperature higher than that during the normal operation.

Shaft sealing structure and reactor coolant pump

A movable contacting device in a circuit breaker comprises: a crossbar linked with the opening/closing mechanism and carried so as to pivot cooperatively with the opening/closing mechanism; a movable contact arm engaged, so as to cooperational with the crossbar, with a shaft fitted into a mutually opposing recesses in the crossbar; and a movable contact arm support fixed to the case accomodating the opening/closing mechanism and having mutually opposing through-holes through which the shaft is passed; and the movable contact being configured so that the movable contact slides between surfaces of movable contact arm support having the mutually opposing through-holes; and the construction of a single-pole portion of the movable contact arm is constituted by arranging in parallel two movable contact arm members each having a movable contact at one end, and in a shaft-supporting portion at the other end, an elastic member is sandwiched between the two movable contact arm members. With this arrangement, circuit breakers provided with a movable contacting device that is small in size and stable in contact resistance can be made available.

Circuit breaker

Cartridge

Machine for identifying fingerprint

An article having a colored surface comprises an article having a working surface and a coating applied on the working surface comprising a cermet composed of alumina and one of chromium and nichrome and exhibiting a black silver color.

Article of black silver color

Growing community of inventors

Tokyo, Japan

Hitoshi Ito