Gas control device
AssigneeMurata Manufacturing Co., Ltd.
InventorMasaaki Fujisaki
Life of this patent
Estimating the term…
Abstract
A gas control device includes a first pump, a second pump, and a connection casing. The first pump includes a first pump casing, a first suction hole, and a first discharge hole. The first pump casing has a plurality of outer walls. The second pump includes a second pump casing, a second suction hole, and a second discharge hole. The connection casing has a first opening and a second opening. The connection casing forms, together with the first pump casing and the second pump casing, a first closed space. The second discharge hole and the first suction hole communicate with each other via the first closed space. The first pump and the second pump are connected in series with each other. The outer wall in which first suction hole is provided faces the first closed space.
Claims14
A gas control device comprising:
- a first pump including a first pump casing, a first suction hole and a first discharge hole, wherein the first pump casing has a plurality of outer walls, and the first suction hole and the first discharge hole are provided in the first pump casing;
- a second pump including a second pump casing, a second suction hole and a second discharge hole, wherein the second suction hole and the second discharge hole are provided in the second pump casing;
- and
- a connection casing providing, together with the first pump casing and the second pump casing, a first closed space, wherein the connection casing encloses the first pump;
- wherein the plurality of outer walls include at least a first outer wall, the first suction hole is provided in the first outer wall, and the first outer wall faces the first closed space,
- wherein the second discharge hole and the first suction hole communicate with each other via the first closed space,
- wherein the second pump casing has a nozzle that is received within the connection casing, and the second discharge hole or the second suction hole is provided inside the nozzle of the second pump casing,
- wherein at least a portion of the second pump is disposed outside of the connection casing,
- wherein the first pump casing has a nozzle, and the first discharge hole or the first suction hole is provided inside the nozzle of the first pump casing,
- wherein the connection casing has a first opening, and
- wherein the nozzle of the first pump casing is fitted into the first opening of the connection casing, and the first pump casing is thereby fixed in place by the connection casing.
A gas control device comprising:
- a first pump including a first pump casing, a first suction hole and a first discharge hole, wherein the first pump casing has a plurality of outer walls, and the first suction hole and the first discharge hole are provided in the first pump casing;
- a second pump including a second pump casing, a second suction hole and a second discharge hole, wherein the second suction hole and the second discharge hole are provided in the second pump casing;
- and
- a connection casing providing, together with the first pump casing and the second pump casing, a first closed space, wherein the connection casing encloses the first pump;
- wherein the plurality of outer walls include at least a first outer wall, the first suction hole is provided in the first outer wall, and the first outer wall faces the first closed space,
- wherein the second discharge hole and the first suction hole communicate with each other via the first closed space,
- wherein the second pump casing has a nozzle that is received within the connection casing, and the second discharge hole or the second suction hole is provided inside the nozzle of the second pump casing,
- wherein at least a portion of the second pump is disposed outside of the connection casing,
- wherein the first pump includes a first piezoelectric body and a first vibration plate, and the first vibration plate vibrates in response to expansion and contraction of the first piezoelectric body, and
- wherein the second pump includes a second piezoelectric body and a second vibration plate, and the second piezoelectric body vibrates in response to expansion and contraction of the second piezoelectric body.
Dependencies are inferred from the claim text.