| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a fluid feeding apparatus capable of feeding accurately a fluid as a foaming agent into a foam molding apparatus while an apparatus cost and a manufacturing cost are reduced by a simple constitution. <P>SOLUTION: A feeding line 6 successively connected with a bomb 3 filled with a liquefied carbon dioxide, a quantitative pump 4 connected with a motor 16 and a flowmeter 5, and a circulation line 7 branched from the downstream side of the flowmeter 5 in the feeding line 6 and connected to a position between the bomb 3 and the quantitative pump 4 in the feeding line 4, are equipped. In addition, in the case when the liquefied carbon dioxide is circulated through the circulation line 7, when a pressure sensor 31 provided on the upstream side of the second opening/closing control valve 32 detects a specified pressure which is at least a feeding pressure of each bomb 3, a CPU 24 opens the second opening/closing control valve 32. Vaporization of the carbon dioxide in the feeding line 6 can be effectively prevented thereby. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
