| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pump that executes efficient operation regardless of the liquid feeding state of fluid and the use frequency of a pump regarding a pump which transports fluid by operating a driving part. <P>SOLUTION: The pump includes: a pump body 2 having a pair of valve chambers 10a, 10b, which respectively includes a valve-chamber inlet 12 or 1ba, a valve-chamber outlet 1bb or 13, and a check valve 11 for opening/closing the valve-chamber inlet, and a pump chamber 20 communicating with the valve chambers 10a, 10b; and a driving part 1 for changing the volume of the pump chamber 20. The rigidity of each check valve 11 provided in each valve chamber 10a, 10b is made different from each other. <P>COPYRIGHT: (C)2012,JPO&INPIT |
