| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a force feed system which can maintain the stable movement of a valve even if it is used for a long term and can safely deaerate inside an object to be pumped. <P>SOLUTION: The force feed system 1 is provided with a first valve 2 which supplies the force feed object into a force feed device 3, a second valve 4 which is connected to the force feed device 3 to deaerate the force feed object that is supplied to the force feed device 3, a third valve 6 which is connected at a downstream side of the second valve 4 in series on the opposite side of the force feed device 3 of the second valve 4, and a depressurizing means 7 which is connected to the third valve 6. A valve body 2e of each of the first through the third valves 2, 4, 6 is projected on the end of a straight tube section 2f in the direction of a valve seat section 2b from the end and is equipped with a projecting seat section 2g that is disjunctive of the valve seat section 2b and the projecting seat section 2g is positioned inside a virtual tube section that is generated by translating the outer peripheral surface of the straight tube section 2f in the direction of an axial line of the straight tube section 2f. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
