Toray Industries, Inc.

Takashi Isobe

Yasuhiro Sato

Yasuo Yonezawa

Sho Tamatsu

Jyunji Itakura

Hirohisa Maeda

Kimihiko Sugishima

Toyohiko Mori

Takashi Narita

Takashi Tokuda

A flow channel switching system (') including: a first on-off valve () which is disposed between a merging portion () and a branching portion () and in a raw water path (); a second on-off valve () which is disposed in an outward path for raw water (); and a sensor () that measures a state of water flowing through the raw water path, in which control is performed so as to open the second on-off valve and close the first on-off valve if a signal indicating that water is flowing in the raw water path is received from the sensor, then a signal indicating that no water is flowing in the raw water path is received, and then, within a predetermined time period, a signal indicating that water is flowing again in the raw water path is received.

Flow channel switching system and water cleaning system

Disclosed is a multi-way valve comprising a valve casing having a fluid inlet and a plurality of fluid outlets, first and second chambers defined in the valve casing, a partition disposed between the first and second chambers and having a plurality of fluid paths, a plurality of valve elements each engaging a corresponding fluid path from the first chamber side for opening and closing the fluid path and a driving device having cams which selectively drive the valve elements from the second chamber side. The multi-way valve can be manufactured as a small-sized one, and therefore, a water purifier using the valve also can be assembled as a small-sized one as a whole. The amount of resident fluid in the valve can be decreased, thereby improving the hygienic property of the water purifier. The operation for taking off or exchanging valve elements can be simplified.

Multi-way valve and water purifier using the same

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Otsu, Japan

Takashi Isobe