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Patent Searching and Data


Title:
PUMP AND FLUID CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/138676
Kind Code:
A1
Abstract:
This pump (1A) is provided with: a first pump chamber (21) defined by a first plate-like body (30) and a second plate-like body (40); a second pump chamber (22) defined by the first plate-like body (30) and a third plate-like body (50); and a driving body (90). The driving body (90) generates pressure variations in both the first pump chamber (21) and the second pump chamber (22) by applying bending vibration to the first plate-like body (3). The first plate-like body (30) is provided with a plurality of first hole sections (31), which do not overlap an axial line (100) perpendicular to a central section of the first plate-like body (30), and each of the first hole sections (31) is provided with a check valve (80). The second plate-like body (40) and the third plate-like body (50) are respectively provided with second hole sections (41) and third hole sections (51), and the second hole sections (41) and/or the third hole sections (51) are provided with check valves.

Inventors:
TANAKA NOBUHIRA (JP)
Application Number:
PCT/JP2018/041611
Publication Date:
July 18, 2019
Filing Date:
November 09, 2018
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
F04B45/04; F04B45/047
Foreign References:
JP2008537057A2008-09-11
JP2007092677A2007-04-12
US20110280755A12011-11-17
JPH01219369A1989-09-01
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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