Title:
低振動ポンプ
Document Type and Number:
Japanese Patent JP4565564
Kind Code:
B2
Abstract:
There is provided a liquid pump in which pulsation can be properly absorbed even if the pump is driven at a high frequency. A pulsation absorbing unit 14 for absorbing pulsation includes a pulsation absorbing housing 44 disposed on a pump housing member, a second diaphragm 48 attached to the pulsation absorbing housing member and defining a pulsation absorbing chamber 46 communicating with a liquid outlet passage 32 of a liquid pump unit, and a disc spring 50 for biasing the second diaphragm toward the pulsation absorbing chamber. Selected Figure; Fig.1
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Inventors:
Kenji Mizuno
Yasumasa Oki
Yasumasa Oki
Application Number:
JP2005310391A
Publication Date:
October 20, 2010
Filing Date:
October 25, 2005
Export Citation:
Assignee:
Nitto Kohki Co., Ltd.
International Classes:
F04B43/02; F04B11/00
Domestic Patent References:
| JP2112981U | ||||
| JP58104379A | ||||
| JP2005527727A | ||||
| JP2004124894A | ||||
| JP54034109U | ||||
| JP37000402Y1 | ||||
| JP10089258A | ||||
| JP2004278323A |
Attorney, Agent or Firm:
Shigeru Ito