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Patent Searching and Data


Title:
PULSATION DAMPING DEVICE
Document Type and Number:
Japanese Patent JP2009127504
Kind Code:
A
Abstract:

To damp pulsation by using an adjusting mechanism by releasing pressure of an air chamber to atmospheric pressure, by using the vertical movement of bellows for dividing a pulsation damping device into one compressed gas inflow control valve mechanism, a liquid chamber and the air chamber, since the pulsation generated when transferring liquid by a reciprocating pump, becomes a hindrance when providing an excellent quality when performing various works (cleaning and etching) by using a transfer liquid, that is, it is important that the pulsation is little and a flow rate and liquid pressure of the liquid are constant for the transfer liquid.

This device has the same effect as a valve by the vertical movement of the bellows, by dividing the air chamber into a first air chamber into which compressed air enters and a second air chamber communicating with the atmosphere, by arranging a seal part in the bellows, and arranging a cam part on an inner surface of a body case.


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Inventors:
Tachibana, Yoshiaki
Harada, Kaoru
Sasajima, Takamitsu
Honma, Kyoko
Application Number:
JP2007000302618
Publication Date:
June 11, 2009
Filing Date:
November 22, 2007
Export Citation:
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Assignee:
SIGMA TECHNOLOGY KK
International Classes:
F04B11/00