Title:
PIEZO-ELECTRIC PUMP AND STERLING REFRIGERATOR/FREEZER
Document Type and Number:
Japanese Patent JP2006144690
Kind Code:
A
Abstract:
To provide a piezo-electric pump excellent in working efficiency, and a Sterling refrigerator/freezer provided with it and excellent in COP (Coefficient of Performance).
The piezo-electric pump 6 is provided with a casing 61, a piezo-electric element 68 to partition the space in the casing 61 into a first working space 62 and a second working space 63, first and second suction parts 64, 66 to suck a working medium for the first and second working spaces 62, 63 respectively, and first and second discharge parts 65, 67 to discharge the working medium from the first and second working spaces 62, 63 respectively.
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Inventors:
FUJIWARA KEIJI
Application Number:
JP2004337506A
Publication Date:
June 08, 2006
Filing Date:
November 22, 2004
Export Citation:
Assignee:
SHARP KK
International Classes:
F04B45/047; F04B45/04; F25D11/00; F25D19/00
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai