Title:
PUMP
Document Type and Number:
WIPO Patent Application WO/2019/111982
Kind Code:
A1
Abstract:
This pump (10) is provided with a flat plate (21), a drive member (22), and a base member (51). The base member (51) has therein a suction port (101) that is connected from the rear surface to the front surface thereof. The flat plate (21), which has a planar shape, has a first primary surface (210) that overlaps the suction port (101) in a plan view, and is arranged in a position spaced a predetermined distance away from the front surface. The drive member (22) includes a flat plate (221) that is connected to the flat plate (21) on the opposite side from the base member (51), and a piezoelectric element (222) which is a drive body that drives the flat plate (221). In a region that faces the flat plate (21), the base member (51) is provided with a passive vibration section (510) that has greater flexibility than the flat plate (21) and that vibrates passively by means of the vibration of the flat plate (221).
Inventors:
ASANO HIROSHI (JP)
Application Number:
PCT/JP2018/044817
Publication Date:
June 13, 2019
Filing Date:
December 06, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
F04B45/047
Domestic Patent References:
| WO2015133283A1 | 2015-09-11 | |||
| WO2009148005A1 | 2009-12-10 |
Foreign References:
| JP2015092082A | 2015-05-14 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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