Fuji Photo Film Company, Limited

Mitsubishi Heavy Industries Limited

Toshihiko Matsuo

Yasuhiro Ikeda

Hitoshi Ito

Takanobu Otani

Yasushi Takayama

Tomoki Hanada

Hiroshi Kuzumi

Hitoshi Saito

Takashi Matsumoto

Hidekazu Uehara

Yasuo Nagashima

Masaru Sakai

Yuji Harada

Akihiko Umeda

Kentarou Saeki

Hiroomi Sakuma

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

In a magnetic disk pack comprising a protective casing rotatably accommodating a flexible magnetic disk thereinside and having a pair of aligned windows formed at corresponding positions respectively so that a magnetic head can be inserted into one of the windows to be brought into sliding contact with the magnetic disk under rotation thereby recording and reproducing picture information on and from the magnetic disk, an inclined surface making an angle with the free rotation plane of the magnetic disk is provided on an inner part of the marginal edge of at least one of the windows or on a member resiliently supported at that position thereby inducing a positive pressure or a negative pressure between the rotating magnetic disk and the inclined surface depending on the direction of rotation of the magnetic disk. Such a positive pressure or negative pressure is utilized to urge or attract the magnetic disk toward and onto the magnetic head so as to ensure satisfactory head touch. In a mangetic disk recording/reproducing apparatus in which magnetic heads are inserted into such a magnetic disk pack, and a magnetic disk is rotated in one direction and the other by a reversible spindle motor, an inclined surface making an angle with the free rotation plane of the magnetic disk is provided on each of control members inserted into the windows of the magnetic disk pack together with the magnetic heads so as to similarly ensure satisfactory head touch.

Magnetic disk pack and magnetic disk recording/reproducing apparatus

A memory card ejector has an eject knob to be externally operated and a lock release button. As a memory card is loaded in a card receiving chamber, a lock lever moves to a locking position so that a claw of the lock lever engages with a recess of the memory card to lock the card at a load completion position. In association with the lock lever, a card detecting switch turns off the supply of power to circuit components of an electronic apparatus. When the lock release button is depressed, the lock lever rotates in the counter-clockwise direction to move to a lock release position whereat the card detecting switch is turned off to stop powering the electronic apparatus. As the eject knob is slid, an associated lever together with an eject lever moves so that the end of the eject lever pushes a slide plate toward a card inlet port with a relatively strong force. A hook of the slide plate pushes the front end of the memory card to discmount it from a connector. As the associated lever further rotates, the eject lever rotates using a stopper as a fulcrum to thereby move the slide plate by a relatively large amount and extend the rear end of the memory card out of the card inlet port.

Ejector for memory card

Growing community of inventors

Tokyo, Japan

Toshihiko Matsuo