Title:
ポンプ
Document Type and Number:
Japanese Patent JP6687170
Kind Code:
B2
Abstract:
A pump includes a housing, a first vibrating body, a second vibrating body, and a peripheral wall portion that define a pump chamber, and a driving body. The housing has a first wall portion opposed to the first vibrating body and a second wall portion. The first wall portion includes a first concave portion that opens toward the first vibrating body and opposed to a central portion of the first vibrating body and a first circumferential portion adjacent to the first concave portion. A first chamber includes a first wide portion defined by the first concave portion and the first vibrating body, and a first narrow portion defined by the first circumferential portion and the first vibrating body. The first narrow portion overlaps with at least part of the first vibrating body.
More Like This:
| JP5962848 | Piezo-electric Blois |
| JPS62111180 | PIEZO-ELECTRIC PUMP |
Inventors:
Daisuke Kondo
Hiroaki Wada
Shin Tanaka
Hiroyuki Yokoi
Hiroki Achiha
Hiroshi Takemura
Hiroaki Wada
Shin Tanaka
Hiroyuki Yokoi
Hiroki Achiha
Hiroshi Takemura
Application Number:
JP2019560937A
Publication Date:
April 22, 2020
Filing Date:
December 04, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
F04B45/047; F04B45/04
Foreign References:
| WO2009148008A1 | ||||
| WO2014024608A1 | ||||
| WO2016009870A1 | ||||
| US20160076530 |
Attorney, Agent or Firm:
Fukami patent office