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Patent Searching and Data


Title:
PIEZOELECTRIC PUMP AND STIRLING REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2005/001288
Kind Code:
A1
Abstract:
A piezoelectric pump (1) has a casing (2), an operation space (4) provided in the casing (2) and receiving an operation medium, a suction hole (6) as a suction portion sucking the operation medium into the operation space (4), a discharge hole (7) as a discharge portion discharging the operation medium from the operation space, a back pressure space (5) provided in the casing (2), a piezoelectric element (3) partitioning off a space in the casing (2) into the operation space (4) and the back pressure space (5), and a communication tube (10) as communication means causing the operation space (4) and the back pressure space (5) to communicate with each other.

Inventors:
Zhang, Hengliang (7-2-404, Minamihonmachi Yamatotakada-shi, Nara, 635-0086, JP)
Application Number:
PCT/JP2004/007961
Publication Date:
January 06, 2005
Filing Date:
June 08, 2004
Export Citation:
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Assignee:
SHARP KABUSHIKI KAISHA (22-22, Nagaike-cho Abeno-k, Osaka-shi Osaka, 545-8522, JP)
Zhang, Hengliang (7-2-404, Minamihonmachi Yamatotakada-shi, Nara, 635-0086, JP)
International Classes:
F04B35/04; F04B45/047; F25B9/14; F25D11/00; (IPC1-7): F04B45/047; F04B43/04
Foreign References:
JP2505727Y2
JP2000205682A
Attorney, Agent or Firm:
Fukami, Hisao (Fukami Patent Office, Mitsui Sumitomo Bank Minamimorimachi Bldg. 1-29, Minamimorimachi 2-chome, Kita-k, Osaka-shi Osaka, 530-0054, JP)
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