公开(公告)号：US20230220842A1

公开(公告)日：2023-07-13

申请号：US18188129

申请日：2023-03-22

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Nobuhira TANAKA ,  Yutoku KAWABATA ,  Hiroki ACHIWA

IPC: F04B43/04 ,  F16K31/00 ,  F16K27/02

CPC classification number: F04B43/046 ,  F16K31/004 ,  F16K27/0236

Abstract: A fluid control device includes a fluid conveying element formed by a pump and a valve, and an outer housing containing the fluid conveying element. The outer housing includes a first outer wall forming an internal space closer to the pump, and a second outer wall forming an internal space closer to the valve. The second outer wall includes an outer-wall main plate having a part overlapping, in plan view, a through hole that is a discharge hole of the valve. A thermal conductivity of the part of the outer-wall main plate overlapping the discharge hole is higher than a thermal conductivity of the first outer wall.

公开(公告)号：US20220403835A1

公开(公告)日：2022-12-22

申请号：US17822243

申请日：2022-08-25

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenjiro OKAGUCHI ,  Hiroki ACHIWA

IPC: F04B49/03 ,  F04B23/04 ,  F04B17/00 ,  F04B49/06 ,  F04B49/08

Abstract: A fluid control device includes a piezoelectric pump, a piezoelectric pump, a container, and a control unit. The piezoelectric pumps and are connected in series. The piezoelectric pump is an upstream-side pump, and the piezoelectric pump is a downstream-side pump. The control unit controls driving of the piezoelectric pumps. The control unit makes the driving start timing of the piezoelectric pump on an upstream side earlier than the driving start timing of the piezoelectric pump on a downstream side.

公开(公告)号：US20230235733A1

公开(公告)日：2023-07-27

申请号：US18191119

申请日：2023-03-28

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Nobuhira TANAKA ,  Yutoku KAWABATA ,  Hiroki ACHIWA

IPC: F04B45/047

CPC classification number: F04B45/047

Abstract: A fluid control device includes a pump and an outer housing containing the pump. The outer housing has a first outer wall that forms an internal space on a flat plate side of the pump and that has a through hole allowing the internal space and an external space to communicate with each other. The first outer wall includes an outer wall main plate facing a piezoelectric element, and a side plate that is connected to the outer wall main plate and that has the through hole. The outer wall main plate has a higher thermal conductivity than that of a second outer wall.

公开(公告)号：US20200318630A1

公开(公告)日：2020-10-08

申请号：US16907475

申请日：2020-06-22

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Daisuke KONDO ,  Hiroaki WADA ,  Nobuhira TANAKA ,  Hiroyuki YOKOI ,  Hiroki ACHIWA ,  Hiroshi TAKEMURA

IPC: F04B43/04 ,  H01L41/09

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.