Title:
ポンプの駆動方法
Document Type and Number:
Japanese Patent JP4367086
Kind Code:
B2
Abstract:
A pump is provided having a pump chamber that is capable of changing a volume thereof by a diaphragm, an inlet passage permitting an operating fluid to flow into the pump chamber; an outlet passage permitting an operating fluid to flow out from the pump chamber; and a check valve provided on the inlet passage. An inertance value of the inlet passage is smaller than the inertance value of the outlet passage. The diaphragm is driven by a frequency f (Hz) satisfying the following formula: wherein the inertance value of the outlet passage is L (kg/m4), the displacement from an upper end point to a bottom end point of the diaphragm is X (m), and the cross section area of the pump chamber is S (m2).
Inventors:
Kunihiko Takashiro
Takeshi Seto
Kichihiro Kazuhiro Ta
Takeshi Seto
Kichihiro Kazuhiro Ta
Application Number:
JP2003364739A
Publication Date:
November 18, 2009
Filing Date:
October 24, 2003
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
B81B3/00; F04B49/06; F04B19/00; F04B43/02; F04B43/04; F04B53/10
Domestic Patent References:
| JP2002322986A |
Attorney, Agent or Firm:
Masahiko Ueyanagi
Fujitsuna Hideyoshi
Osamu Suzawa
Fujitsuna Hideyoshi
Osamu Suzawa