OPERATION FLUID MOVEMENT DEVICE

WIPO Patent Application WO/2004/011367

A1

An operation fluid movement device (10) is a laminated body of ceramic sheets (11a-11c) that form a flow path (13). The ceramic sheet (11c) forms a film, and a piezoelectric/electrostrictive film (12) is integrally formed on the upper face of the ceramic sheet (11c). In the flow path (13), a first operation fluid (14) and a second operation fluid (15) are received. Wettability of the first operation fluid with respect to the inner wall face of the flow path is inferior to the wettability of the second operation fluid. When voltage is applied to the piezoelectric/electrostrictive film, the center portion of the ceramic sheet (11c) is bent and displaced to reduce the cross-sectional area of the flow path. The first operation fluid (14) in presence as a fluid mass in the center portion of the flow path is separated into two when the fluid receives repulsive force, caused by inferior wettability of the fluid, from the wall surface of the flow path, and moves in the flow path.

Murasato, Masahiro c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Tanaka, Ritsu c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Bessho, Yuki c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)

PCT/JP2003/009421

February 05, 2004

July 25, 2003

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NGK INSULATORS, LTD. (2-56, Suda-cho Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)

F04B43/04; H01H29/00; H01H57/00; H01H1/00; H01L41/09; (IPC1-7): B81B3/00; H01L41/09; F04B43/04; H01H3/24; H01H29/02; H01H57/00

Oba, Sakio (Prospec Patent Firm, 2nd Floor Nagoya-KS Building, 1-18, Taiko 3-chome, Nakamura-k, Nagoya-shi Aichi, 453-0801, JP)

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