Title:
【発明の名称】ダイヤフラムポンプ
Document Type and Number:
Japanese Patent JP2852032
Kind Code:
B2
Abstract:
A diaphragm pump is described having a housing defining pumping and buffer chambers separated by a common wall. An outlet discharges fluid from the pumping chamber to the buffer chamber and a reciprocating diaphragm varies the volume of the pumping chamber. The pumping chamber has an inlet for admission of fluid to be pumped and the buffer chamber has an outlet for discharge of fluid. The buffer chamber contains a gas which is compressed as fluid is admitted into the buffer chamber and expands as fluid is discharged from the buffer chamber. Accordingly, pipes to which the pump is connected are kept from being damaged by water hammer and the noise level can be reduced to an acceptable level.
Inventors:
KIN SHIGETETSU
Application Number:
JP18932397A
Publication Date:
January 27, 1999
Filing Date:
June 30, 1997
Export Citation:
Assignee:
KIN SHIGETETSU
International Classes:
F04B45/04; F04B11/00; F04B43/02; (IPC1-7): F04B43/02; F04B11/00
Domestic Patent References:
| JP828454A | ||||
| JP6017278A | ||||
| JP5434109U | ||||
| JP6169488U |
Attorney, Agent or Firm:
Miaki Kametani (2 outside)