Title:
ベローズポンプ
Document Type and Number:
Japanese Patent JP3601148
Kind Code:
B2
Abstract:
A bellows pump exhibiting stable and highly efficient performance. The bellows pump is composed of a first work chamber for admitting fluid, a second work chamber for storing work fluid, a bellows for parting a chamber space into the first and the second work chambers; a plunger being movable in a reciprocative manner to and form the second work chamber; a work fluid chamber which is opened; and a drive member for the plunger. The plunger is provided with a flow channel with a second communication port communicating only at the initial and completing stage of an inflow process of the fluid. A first communication port locates in the vicinity of a top of the first work chamber. The second communication port locates above the first communication port.
Inventors:
Hiroshi Kubo
Application Number:
JP32819995A
Publication Date:
December 15, 2004
Filing Date:
November 22, 1995
Export Citation:
Assignee:
Aisin Seiki Co., Ltd.
International Classes:
F04B43/08; F04B43/107; (IPC1-7): F04B43/08
Domestic Patent References:
| JP626465A | ||||
| JP59122789A | ||||
| JP589901U |
Attorney, Agent or Firm:
Yoshiyasu Takahashi